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TABLE OF CONTENTS
INDEX TO FINANCIAL STATEMENTS

Table of Contents

Filed Pursuant to Rule 497
Registration Statement No. 333-173674

PROSPECTUS SUPPLEMENT
(to Prospectus dated May 25, 2012)

3,750,000 Shares

GRAPHIC

Main Street Capital Corporation

Common Stock



           We are offering for sale 3,750,000 shares of our common stock.

           We are a principal investment firm primarily focused on providing customized debt and equity financing to lower middle market ("LMM") companies and debt capital to middle market ("Middle Market") companies. Our LMM companies generally have annual revenues between $10 million and $150 million, and our LMM portfolio investments generally range in size from $5 million to $25 million. Our Middle Market investments are made in businesses that are generally larger in size than our LMM portfolio companies.

           The LMM securities in which we invest would be rated below investment grade if they were rated by rating agencies. Below investment grade securities, which are often referred to as "junk," have predominantly speculative characteristics with respect to the issuer's capacity to pay interest and repay principal. They may also be difficult to value and are illiquid.

           Our principal investment objective is to maximize our portfolio's total return by generating current income from our debt investments and capital appreciation from our equity and equity related investments, including warrants, convertible securities and other rights to acquire equity securities in a portfolio company.

           We are an internally managed, closed-end, non-diversified management investment company that has elected to be treated as a business development company under the Investment Company Act of 1940.

           Our common stock is listed on the New York Stock Exchange under the symbol "MAIN." On June 20, 2012, the last reported sale price of our common stock on the New York Stock Exchange was $23.72 per share.

           Shares of closed-end investment companies such as ours frequently trade at a discount to their net asset value. This risk is separate and distinct from the risk that our net asset value per share may decline. We cannot predict whether our common stock will trade above, at or below net asset value. In this regard, on June 14, 2012, our common stockholders voted to allow us to issue common stock at a price below net asset value per share for a period of one year ending on June 13, 2013. Our stockholders did not specify a maximum discount below net asset value at which we are able to issue our common stock, although the number of shares sold in each offering may not exceed 25% of our outstanding common stock immediately prior to such sale. In addition, we cannot issue shares of our common stock below net asset value unless our Board of Directors determines that it would be in our and our stockholders' best interests to do so. Sales of common stock at prices below net asset value per share dilute the interests of existing stockholders, have the effect of reducing our net asset value per share and may reduce our market price per share. In addition, continuous sales of common stock below net asset value may have a negative impact on total returns and could have a negative impact on the market price of our shares of common stock. See "Sales of Common Stock Below Net Asset Value" in the accompanying prospectus.

           Investing in our common stock involves a high degree of risk, and should be considered highly speculative. See "Risk Factors" beginning on page 13 of the accompanying prospectus to read about factors you should consider, including the risk of leverage and dilution, before investing in our common stock.

           This prospectus supplement and the accompanying prospectus contain important information about us that a prospective investor should know before investing in our common stock. Please read this prospectus supplement and the accompanying prospectus before investing and keep them for future reference. We file annual, quarterly and current reports, proxy statements and other information with the Securities and Exchange Commission, or SEC. This information is available free of charge by contacting us at 1300 Post Oak Boulevard, Suite 800, Houston, Texas 77056 or by telephone at (713) 350-6000 or on our website at www.mainstcapital.com. Information contained on our website is not incorporated by reference into this prospectus supplement or the accompanying prospectus, and you should not consider that information to be part of this prospectus supplement or the accompanying prospectus. The SEC also maintains a website at www.sec.gov that contains such information.

 
  Per share   Total  

Public offering price

  $ 22.50   $ 84,375,000  

Underwriting discount (4.00%)

  $ 0.90   $ 3,375,000  

Proceeds, before expenses, to us (1)

  $ 21.60   $ 81,000,000  

(1)
We estimate that we will incur approximately $200,000 in offering expenses in connection with this offering.

           The underwriters have the option to purchase up to an additional 562,500 shares of common stock at the public offering price, less the underwriting discount, within 30 days from the date of this prospectus supplement solely to cover any over-allotments. If the over-allotment option is exercised in full, the total public offering price will be $97,031,250, the total underwriting discount (4.00%) will be $3,881,250, and the total proceeds to us, before deducting estimated expenses payable by us of $200,000, will be $93,150,000.

           The Securities and Exchange Commission has not approved or disapproved of these securities or determined if this prospectus supplement or the accompanying prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

           The underwriters expect to deliver the shares on or about June 26, 2012.

RAYMOND JAMES



BAIRD   BB&T CAPITAL MARKETS
A DIVISION OF SCOTT & STRINGFELLOW, LLC

JANNEY MONTGOMERY SCOTT

      LADENBURG THALMANN & CO. INC.

                                                                       SANDERS MORRIS HARRIS

The date of this prospectus supplement is June 21, 2012


Table of Contents


TABLE OF CONTENTS

 
  Page  

Prospectus Supplement

 

Prospectus Summary

    S-1  

Fees and Expenses

    S-8  

Use of Proceeds

    S-10  

Capitalization

    S-11  

Underwriting (Conflicts of Interest)

    S-12  

Legal Matters

    S-14  

Independent Registered Public Accounting Firm

    S-14  

Available Information

    S-15  


Prospectus


 

Prospectus Summary

    1  

Fees and Expenses

    11  

Risk Factors

    13  

Cautionary Statement Concerning Forward-Looking Statements

    30  

Use of Proceeds

    31  

Price Range of Common Stock and Distributions

    31  

Selected Financial Data

    36  

Management's Discussion and Analysis of Financial Condition and Results of Operations

    38  

Senior Securities

    64  

Business

    65  

Portfolio Companies

    78  

Management

    89  

Certain Relationships and Related Transactions

    110  

Control Persons and Principal Stockholders

    112  

Sales of Common Stock Below Net Asset Value

    113  

Dividend Reinvestment Plan

    118  

Description of Capital Stock

    119  

Material U.S. Federal Income Tax Considerations

    127  

Regulation

    133  

Plan of Distribution

    140  

Custodian, Transfer and Distribution Paying Agent and Registrar

    141  

Brokerage Allocation and Other Practices

    141  

Legal Matters

    141  

Independent Registered Public Accounting Firm

    141  

Available Information

    142  

Privacy Notice

    142  

Index to Financial Statements

    F-1  

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ABOUT THE PROSPECTUS

        This document is in two parts. The first part is this prospectus supplement, which describes the terms of this offering of common stock and also adds to and updates information contained in the accompanying prospectus. The second part is the accompanying prospectus, which provides more information about the common stock we may offer from time to time. To the extent the information contained in this prospectus supplement differs from the information contained in the accompanying prospectus, the information in this prospectus supplement shall control.

        You should rely only on the information contained in this prospectus supplement and the accompanying prospectus. Neither we nor the underwriters have authorized any other person to provide you with different information from that contained in this prospectus supplement or the accompanying prospectus. If anyone provides you with different or inconsistent information, you should not rely on it. This prospectus supplement and the accompanying prospectus do not constitute an offer to sell, or a solicitation of an offer to buy, any shares of our common stock by any person in any jurisdiction where it is unlawful for that person to make such an offer or solicitation or to any person in any jurisdiction to whom it is unlawful to make such an offer or solicitation. The information contained in this prospectus supplement and the accompanying prospectus is complete and accurate only as of their respective dates, regardless of the time of their delivery or sale of our common stock. This prospectus supplement supersedes the accompanying prospectus to the extent it contains information different from or additional to the information in that prospectus.

Forward-Looking Statements

        Information contained in this prospectus supplement and the accompanying prospectus may contain forward-looking statements, which can be identified by the use of forward-looking terminology such as "may," "will," "expect," "intend," "anticipate," "estimate," or "continue" or the negative thereof or other variations thereon or comparable terminology. The matters described in the section titled "Risk Factors" in the accompanying prospectus and certain other factors noted throughout this prospectus supplement and the accompanying prospectus constitute cautionary statements identifying important factors with respect to any such forward-looking statements, including certain risks and uncertainties that could cause actual results to differ materially from those in such forward-looking statements. We undertake no obligation to revise or update any forward-looking statements but advise you to consult any additional disclosures that we may make directly to you or through reports that we may file in the future with the SEC, including annual reports on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K. We note that the safe harbor for forward-looking statements provided by the Private Securities Litigation Reform Act of 1995 does not apply to statements made in this prospectus supplement or the accompanying prospectus.

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PROSPECTUS SUMMARY

        This summary highlights some of the information in this prospectus supplement and the accompanying prospectus. It is not complete and may not contain all of the information that you may want to consider. To understand the terms of the common stock offered hereby, you should read the entire prospectus supplement and the accompanying prospectus carefully. Together, these documents describe the specific terms of the shares we are offering. You should carefully read the documents identified in the section titled "Available Information" in this prospectus supplement, as well as the sections titled "Selected Financial Data," "Interim Management's Discussion and Analysis of Financial Condition and Results of Operations," "Interim Financial Statements" and "Risk Factors" in the accompanying prospectus. Except as otherwise noted, all information in this prospectus supplement and the accompanying prospectus assumes no exercise of the underwriters' over-allotment option.

Organization

        Main Street Capital Corporation ("MSCC") was formed on March 9, 2007 for the purpose of (i) acquiring 100% of the equity interests of Main Street Mezzanine Fund, LP ("MSMF") and its general partner, Main Street Mezzanine Management, LLC ("MSMF GP"), (ii) acquiring 100% of the equity interests of Main Street Capital Partners, LLC (the "Investment Manager"), (iii) raising capital in an initial public offering, which was completed in October 2007 (the "IPO"), and (iv) thereafter operating as an internally managed business development company ("BDC") under the Investment Company Act of 1940, as amended (the "1940 Act"). MSMF is licensed as a Small Business Investment Company ("SBIC") by the United States Small Business Administration ("SBA") and the Investment Manager acts as MSMF's manager and investment adviser. Because the Investment Manager, which employs all of the executive officers and other employees of MSCC, is wholly owned by us, we do not pay any external investment advisory fees, but instead we incur the operating costs associated with employing investment and portfolio management professionals through the Investment Manager. The IPO and related transactions discussed above were consummated in October 2007 and are collectively termed the "Formation Transactions."

        On January 7, 2010, MSCC consummated transactions (the "Exchange Offer") to exchange 1,239,695 shares of its common stock for approximately 88% of the total dollar value of the limited partner interests in Main Street Capital II, LP ("MSC II" and, together with MSMF, the "Funds"). Pursuant to the terms of the Exchange Offer, 100% of the membership interests in the general partner of MSC II, Main Street Capital II GP, LLC ("MSC II GP"), were also transferred to MSCC for no consideration. MSC II commenced operations in January 2006, is an investment fund that operates as an SBIC and is also managed by the Investment Manager. During the first three months of 2012, MSCC exchanged 229,634 shares of its common stock to acquire all of the remaining minority ownership in the total dollar value of the MSC II limited partnership interests, including approximately 5% owned by affiliates of MSCC (the "Final MSC II Exchange"). After the acquisition of these remaining MSC II equity interests, MSCC owns 100% of MSC II as of March 31, 2012. The Exchange Offer and related transactions, including the transfer of the MSC II GP interests and the Final MSC II Exchange, are collectively termed the "Exchange Offer Transactions."

        MSCC has elected to be treated for federal income tax purposes as a regulated investment company ("RIC") under Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"). As a result, MSCC generally will not pay corporate level federal income taxes on any net ordinary income or capital gains that it distributes to its stockholders as dividends.

        MSCC has direct or indirect subsidiaries that have elected to be taxable entities (the "Taxable Subsidiaries"). The primary purpose of these entities is to hold certain investments that

 

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generate "pass through" income for tax purposes. The Taxable Subsidiaries are each taxed at their normal corporate tax rates based on their taxable income.

        Unless otherwise noted or the context otherwise indicates, the terms "we," "us," "our" and "Main Street" refer to MSCC and its subsidiaries, including the Funds and the Taxable Subsidiaries.

Overview

        We are a principal investment firm primarily focused on providing customized debt and equity financing to lower middle market ("LMM") companies and debt capital to middle market ("Middle Market") companies. Our portfolio investments are typically made to support management buyouts, recapitalizations, growth financings, refinancings and acquisitions of companies that operate in diverse industry sectors. We seek to partner with entrepreneurs, business owners and management teams and generally provide "one stop" financing alternatives within our LMM portfolio. We invest primarily in secured debt instruments, equity investments, warrants and other securities of LMM companies based in the United States and in secured debt instruments of Middle Market companies generally headquartered in the United States. Our principal investment objective is to maximize our portfolio's total return by generating current income from our debt investments and capital appreciation from our equity and equity related investments, including warrants, convertible securities and other rights to acquire equity securities in a portfolio company. Our LMM companies generally have annual revenues between $10 million and $150 million, and our LMM portfolio investments generally range in size from $5 million to $25 million. Our Middle Market investments are made in businesses that are generally larger in size than our LMM portfolio companies and our Middle Market portfolio companies had weighted average annual revenues of $476 million as of March 31, 2012. Our other portfolio ("Other Portfolio") investments primarily consist of investments which are not consistent with the typical profiles for LMM and Middle Market portfolio investments, including investments which may be managed by third parties.

        We seek to fill the current financing gap for LMM businesses, which, historically, have had more limited access to financing from commercial banks and other traditional sources. The underserved nature of the lower middle market creates the opportunity for us to meet the financing needs of LMM companies while also negotiating favorable transaction terms and equity participations. Our ability to invest across a company's capital structure, from senior secured loans to equity securities, allows us to offer portfolio companies a comprehensive suite of financing solutions, or "one stop" financing. Providing customized, "one stop" financing solutions has become even more relevant to our LMM portfolio companies in the current investing environment. We generally seek to partner directly with entrepreneurs, management teams and business owners in making our investments. We believe that our LMM investment strategy has a lower correlation to the broader debt and equity markets.

        As of March 31, 2012, we had debt and equity investments in 53 LMM portfolio companies with an aggregate fair value of $388.1 million, with a total cost basis of approximately $322.3 million, and a weighted average annual effective yield on our LMM debt investments of approximately 14.9%. Approximately 77% of our total LMM portfolio investments at cost were in the form of debt investments and 98% of such debt investments at cost were secured by first priority liens on the assets of our LMM portfolio companies as of March 31, 2012. At March 31, 2012, we had equity ownership in approximately 92% of our LMM portfolio companies and the average fully diluted equity ownership in those portfolio companies was approximately 33%. As of December 31, 2011, we had debt and equity investments in 54 LMM portfolio companies with an aggregate fair value of $415.7 million with a total cost basis of approximately $349.0 million and a weighted average annual effective yield on our LMM debt investments of

 

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approximately 14.8%. The weighted average annual yields were computed using the effective interest rates for all debt investments as of March 31, 2012 and December 31, 2011, including amortization of deferred debt origination fees and accretion of original issue discount but excluding liquidation fees payable upon repayment and any debt investments on non-accrual status.

        In addition to our LMM investment strategy, we opportunistically pursue investments in Middle Market companies. Our Middle Market portfolio investments primarily consist of direct or secondary purchases of interest bearing debt securities in companies that are generally larger in size than the LMM companies included in our LMM portfolio. Our Middle Market portfolio debt investments are generally secured by either a first or second priority lien on the assets of the company and have an expected duration of between three and five years.

        As of March 31, 2012, we had Middle Market portfolio investments in 62 companies collectively totaling approximately $251.0 million in fair value with a total cost basis of approximately $249.8 million. The weighted average revenues for the 62 Middle Market portfolio company investments were approximately $476 million. Our Middle Market debt investments are primarily in the form of debt investments and 86% of such debt investments at cost were secured by first priority liens on portfolio company assets as of March 31, 2012. The weighted average annual effective yield on our Middle Market portfolio debt investments was approximately 9.2% as of March 31, 2012. As of December 31, 2011, we had Middle Market portfolio investments in 57 companies collectively totaling approximately $226.5 million in fair value with a total cost basis of approximately $228.9 million. The weighted average revenues for the 57 Middle Market portfolio company investments were approximately $473 million. The weighted average annual effective yield on our Middle Market portfolio debt investments was approximately 9.5% as of December 31, 2011. The weighted average annual yields were computed using the effective interest rates for all debt investments as of March 31, 2012 and December 31, 2011, including amortization of deferred debt origination fees and accretion of original issue discount but excluding liquidation fees payable upon repayment.

        As of March 31, 2012, we had Other Portfolio investments in 4 companies collectively totaling approximately $25.1 million in both fair value and cost basis. As of December 31, 2011, we had Other Portfolio investments in 3 companies collectively totaling approximately $14.1 million in both fair value and cost basis.

        Our portfolio investments are generally made through MSCC and the Funds. MSCC and the Funds share the same investment strategies and criteria, although they are subject to different regulatory regimes. See "Regulation" in the accompanying prospectus. An investor's return in MSCC will depend, in part, on the Funds' investment returns as the Funds are wholly owned subsidiaries of MSCC.

        The level of new portfolio investment activity will fluctuate from period to period based upon our view of the current economic fundamentals, our ability to identify new investment opportunities that meet our investment criteria, and our ability to consummate the identified opportunities. The level of new investment activity, and associated interest and fee income, will directly impact future investment income. In addition, the level of dividends paid by portfolio companies and the portion of our portfolio debt investments on non-accrual status will directly impact future investment income. While we intend to grow our portfolio and our investment income over the long-term, our growth and our operating results may be more limited during depressed economic periods. However, we intend to appropriately manage our cost structure and liquidity position based on applicable economic conditions and our investment outlook. The level of realized gains or losses and unrealized appreciation or depreciation will also fluctuate depending upon portfolio activity and the performance of our individual portfolio companies.

 

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The changes in realized gains and losses and unrealized appreciation or depreciation could have a material impact on our operating results.

        MSCC and its consolidated subsidiaries are internally managed by the Investment Manager, a wholly owned subsidiary of MSCC, which employs all of the executive officers and other employees of Main Street. Because the Investment Manager is wholly owned by MSCC, MSCC does not pay any external investment advisory fees, but instead incurs the operating costs associated with employing investment and portfolio management professionals through the Investment Manager. We believe that our internally managed structure provides us with a beneficial operating expense structure when compared to other publicly traded and privately-held investment firms which are externally managed, and our internally managed structure allows us the opportunity to leverage our non-interest operating expenses as we grow our investment portfolio. For the quarter ended March 31, 2012, the ratio of our total operating expenses, excluding interest expense, as a percentage of our quarterly average total assets was 2.0% on an annualized basis, compared to 2.5% on an annualized basis for the quarter ended March 31, 2011 and 2.2% for the year ended December 31, 2011.

        You should be aware that investments in our portfolio companies carry a number of risks including, but not limited to, investing in companies which may have limited operating histories and financial resources and other risks common to investing in below investment grade debt and equity investments in private, smaller companies. Please see "Risk Factors—Risks Related to Our Investments" in the accompanying prospectus for a more complete discussion of the risks involved with investing in our portfolio companies.

        Our principal executive offices are located at 1300 Post Oak Boulevard, Suite 800, Houston, Texas 77056, and our telephone number is (713) 350-6000. We maintain a website at http://www.mainstcapital.com. Information contained on our website is not incorporated by reference into this prospectus supplement or the accompanying prospectus, and you should not consider that information to be part of this prospectus supplement or the accompanying prospectus.

Business Strategies

        Our principal investment objective is to maximize our portfolio's total return by generating current income from our debt investments and realizing capital appreciation from our equity and equity-related investments, including warrants, convertible securities and other rights to acquire equity securities in a portfolio company. We have adopted the following business strategies to achieve our investment objective. Please see "Business—Business Strategies" in the accompanying prospectus for a more complete discussion of our business strategies.

 

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Investment Criteria

        Our investment team has identified the following investment criteria that it believes are important in evaluating prospective portfolio companies. Our investment team uses these criteria in evaluating investment opportunities. However, not all of these criteria have been, or will be, met in connection with each of our investments. Please see "Business—Investment Criteria" in the accompanying prospectus for a more complete discussion of our investment criteria.

Recent Developments

        During June 2012, our Board of Directors granted a total of approximately 139,000 shares of restricted stock to our executive officers, employees and non-employee directors pursuant to our equity compensation plans.

        Our 2012 Annual Meeting of Stockholders (the "Annual Meeting") was held on June 14, 2012. At the Annual Meeting, our stockholders (i) re-elected each of Michael Appling, Jr., Joseph E. Canon, Arthur L. French, J. Kevin Griffin, Vincent D. Foster and Todd A. Reppert to our Board of Directors for a one-year term, and (ii) approved a proposal to authorize us, with the approval of our Board of Directors, to sell shares of our common stock during the next twelve months at a price below our then current net asset value per share, subject to certain limitations, including that the number of shares sold in each offering does not exceed 25% of our outstanding common stock immediately prior to such sale. On June 14, 2012, our Board of Directors also appointed Mr. Dwayne L. Hyzak, our Chief Financial Officer, as our Treasurer and Mr. Jason B. Beauvais, our General Counsel, as our Chief Compliance Officer, each effective immediately.

 

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        During May 2012, we expanded our credit facility from $235.0 million to $277.5 million. The $42.5 million increase in total commitments included commitment increases by three lenders currently participating in the credit facility. The amended credit facility contains an accordion feature that allows for a further increase in total commitments under the facility up to $350 million of total commitments from new and existing lenders on the same terms and conditions as the existing commitments. The increase in total commitments provides us access to additional financing capacity in support of our future investment and operational activities.

        During May 2012, we declared monthly dividends of $0.145 per share for each of July, August and September 2012. These monthly dividends equal a total of $0.435 per share for the third quarter of 2012.

        During April 2012, we completed an LMM portfolio investment in Bridge Capital Solutions Corporation ("Bridge Capital"). The investment consists of $5.0 million in first lien, senior secured debt with equity warrant participation. Headquartered on Long Island in Hauppauge, New York, Bridge Capital is a financial services firm that provides accelerated cash flow solutions to small businesses. The proceeds of our investment were used to refinance certain debt obligations of Bridge Capital and to provide additional liquidity to finance certain growth initiatives and for general working capital purposes.


The Offering

Common stock offered by us   3,750,000 shares

Common stock outstanding prior to this offering

 

27,284,012 shares

Common stock to be outstanding after this offering

 

31,034,012 shares

Over-allotment option

 

562,500 shares

Use of proceeds

 

The net proceeds from this offering (without exercise of the over-allotment option and before deducting estimated expenses payable by us of approximately $200,000) will be $81,000,000.

 

 

We intend to initially use the net proceeds from this offering to repay outstanding debt borrowed under our $277.5 million credit facility. However, through re-borrowing of the initial repayments under our $277.5 million credit facility, we intend to use the net proceeds from this offering to make investments in accordance with our investment objective and strategies described in this prospectus supplement and the accompanying prospectus, to make investments in marketable securities and idle funds investments, which may include investments in secured intermediate term bank debt, rated debt securities and other income producing investments, to pay our operating expenses and other cash obligations, and for general corporate purposes. See "Use of Proceeds" below.

Dividends and distributions

 

Our dividends and other distributions, if any, will be determined by our Board of Directors from time to time.

 

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    Our ability to declare dividends depends on our earnings, our overall financial condition (including our liquidity position), maintenance of our RIC status and such other factors as our Board of Directors may deem relevant from time to time. From our IPO through the third quarter of 2008 we paid quarterly dividends, but in the fourth quarter of 2008 we began paying, and we intend to continue paying, monthly dividends to our stockholders.

 

 

When we make monthly distributions, we are required to determine the extent to which such distributions are paid out of current or accumulated earnings, recognized capital gains or capital. To the extent there is a return of capital, investors will be required to reduce their basis in our stock for federal tax purposes. In the future, our distributions may include a return of capital.

 

 

In May 2012, we declared monthly dividends of $0.145 per share for each of July, August and September 2012. These monthly dividends equate to a total of $0.435 per share for the third quarter of 2012. Because the record date for the July 2012 dividend payment is prior to the date of this offering, investors who purchase shares of our common stock in this offering will not be entitled to receive such dividend. However, investors who purchase shares of our common stock in this offering will be entitled to receive the August 2012 dividend payment and subsequent monthly dividends provided that they continue to hold such shares.

Taxation

 

MSCC has elected to be treated for federal income tax purposes as a RIC under Subchapter M of the Code. Accordingly, we generally will not pay corporate-level federal income taxes on any net ordinary income or capital gains that we distribute to our stockholders as dividends. To maintain our RIC tax treatment, we must meet specified source-of-income and asset diversification requirements and distribute annually at least 90% of our net ordinary income and realized net short-term capital gains in excess of realized net long-term capital losses, if any.

 

 

Depending on the level of taxable income earned in a tax year, we may choose to carry forward taxable income in excess of current year distributions into the next tax year and pay a 4% excise tax on such income. Any such carryover taxable income must be distributed through a dividend declared prior to filing the final tax return related to the year which generated such taxable income. See "Material U.S. Federal Income Tax Considerations" in the accompanying prospectus.

 

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Risk factors   See "Risk Factors" beginning on page 13 of the accompanying prospectus for a discussion of risks you should carefully consider before deciding to invest in shares of our common stock.

New York Stock Exchange symbol

 

"MAIN"


FEES AND EXPENSES

        The following table is intended to assist you in understanding the costs and expenses that an investor in this offering will bear directly or indirectly. We caution you that some of the percentages indicated in the table below are estimates and may vary. Except where the context suggests otherwise, whenever this prospectus supplement contains a reference to fees or expenses paid by "you," "us" or "Main Street," or that "we" will pay fees or expenses, stockholders will indirectly bear such fees or expenses as investors in us.

Stockholder Transaction Expenses:

       

Sales load (as a percentage of offering price)

    4.00 % (1)

Offering expenses (as a percentage of offering price)

    0.24 % (2)

Dividend reinvestment plan expenses

         (3)
       

Total stockholder transaction expenses (as a percentage of offering price)

    4.24 %

Annual Expenses (as a percentage of net assets attributable to common stock):

       

Operating expenses

    3.34 % (4)

Interest payments on borrowed funds

    3.40 % (5)

Income tax expense

    1.48 % (6)

Acquired fund fees and expenses

    0.07 % (7)
       

Total annual expenses

    8.29 %

(1)
Represents the underwriting discount with respect to the shares sold by us in this offering.

(2)
The offering expenses of this offering borne by us are estimated to be approximately $200,000. If the underwriters exercise their over-allotment option in full, the offering expenses borne by us (as a percentage of the offering price) will be approximately 0.21%.

(3)
The expenses of administering our dividend reinvestment plan are included in operating expenses.

(4)
Operating expenses represent the estimated annual expenses of MSCC and its consolidated subsidiaries. Because the Investment Manager is wholly owned by MSCC, MSCC does not pay any external investment advisory fees, but instead incurs the operating costs associated with employing investment and portfolio management professionals through the Investment Manager.

(5)
Interest payments on borrowed funds represent our estimated annual interest payments on borrowed funds based on current debt levels as adjusted for projected increases (but not decreases) in debt levels over the next twelve months.

(6)
Income tax expense primarily relates to the accrual of deferred taxes on the net unrealized appreciation from portfolio investments held in Taxable Subsidiaries, which is non-cash in nature and may vary significantly from period to period. We are required to include deferred taxes in calculating our annual expenses even though these deferred taxes are not currently payable. Due to the variable nature of this expense and the difficulty in providing an estimate for future periods, this income tax expense estimate

 

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(7)
Acquired fund fees and expenses represent the estimated indirect expense incurred due to investments in other investment companies and private funds.

Example

        The following example demonstrates the projected dollar amount of total cumulative expenses that would be incurred over various periods with respect to a hypothetical investment in our common stock. In calculating the following expense amounts, we have assumed we would have no additional leverage and that our annual operating expenses would remain at the levels set forth in the table above, and that you would pay a sales load of 4.00% (the underwriting discount to be paid by us with respect to common stock sold by us in this offering).

 
  1 Year   3 Years   5 Years   10 Years  

You would pay the following expenses on a $1,000 investment, assuming a 5.0% annual return

  $ 123.9   $ 279.0   $ 424.1   $ 747.0  

        The example and the expenses in the table above should not be considered a representation of our future expenses, and actual expenses may be greater or less than those shown. While the example assumes, as required by the SEC, a 5.0% annual return, our performance will vary and may result in a return greater or less than 5.0%. In addition, while the example assumes reinvestment of all dividends at net asset value, participants in our dividend reinvestment plan will receive a number of shares of our common stock, determined by dividing the total dollar amount of the dividend payable to a participant by (i) the market price per share of our common stock at the close of trading on the dividend payment date in the event that we use newly issued shares to satisfy the share requirements of the dividend reinvestment plan or (ii) the average purchase price of all shares of common stock purchased by the administrator of the dividend reinvestment plan in the event that shares are purchased in the open market to satisfy the share requirements of the dividend reinvestment plan, which may be at, above or below net asset value. See "Dividend Reinvestment Plan" in the accompanying prospectus for additional information regarding our dividend reinvestment plan.

 

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USE OF PROCEEDS

        The net proceeds from the sale of the 3,750,000 shares of common stock in this offering are $80,800,000, and $92,950,000 if the underwriter's over-allotment option is exercised in full, after deducting the underwriting discount and estimated offering expenses payable by us.

        We intend to initially use the net proceeds from this offering to repay outstanding debt borrowed under our $277.5 million credit facility. However, through re-borrowing of the initial repayments under our $277.5 million credit facility, we intend to use the net proceeds from this offering to make investments in accordance with our investment objective and strategies described in this prospectus supplement and the accompanying prospectus, to make investments in marketable securities and idle funds investments, which may include investments in secured intermediate term bank debt, rated debt securities and other income producing investments, to pay our operating expenses and other cash obligations, and for general corporate purposes. Our ability to achieve our investment objective may be limited to the extent that the net proceeds from an offering, pending full investment, are held in interest bearing deposits or other short-term instruments. See "Risk Factors—Risks Relating to Our Common Stock—We may be unable to invest a significant portion of the net proceeds from an offering or from exiting an investment or other capital on acceptable terms, which could harm our financial condition and operating results" in the accompanying prospectus.

        At June 19, 2012, we had approximately $174 million outstanding under our $277.5 million credit facility. Our credit facility matures on September 20, 2014, unless extended, and bears interest, at our election, on a per annum basis equal to (i) the applicable LIBOR rate plus 2.50% or (ii) the applicable base rate plus 1.50%. Amounts repaid under our $277.5 million credit facility will remain available for future borrowings. As of March 31, 2012, the interest rate on our $277.5 million credit facility was 2.8%.

        An affiliate of BB&T Capital Markets, an underwriter in this offering, acts as agent and a lender under our $277.5 million credit facility. As described above, we intend to use net proceeds of this offering to repay the outstanding indebtedness under this credit facility, and such affiliate therefore may receive a portion of the proceeds from this offering through the repayment of those borrowings. See "Underwriting—Conflicts of Interest" below.

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CAPITALIZATION

        The following table sets forth our capitalization:

        This table should be read in conjunction with "Interim Management's Discussion and Analysis of Financial Condition and Results of Operations" and "Interim Financial Statements" in the accompanying prospectus.

 
  As of March 31, 2012  
 
  Actual   As-adjusted for this Offering  
 
  (Unaudited)
(in thousands, except shares)

 

Cash and cash equivalents

  $ 88,955   $ 88,955  

Marketable securities and idle funds investments (cost: $14,066)

    14,345     14,345  
           

Total cash and cash equivalents, marketable securities and idle funds investments

  $ 103,300   $ 103,300  
           

SBIC debentures (par: $220,000; par of $95,000 is recorded at a fair value of $76,586)

  $ 201,586   $ 201,586  

Credit facility (1)

    138,000     57,200  

Net asset value:

             

Common stock, $0.01 par value per share (150,000,000 shares authorized; 27,061,484 and 30,811,484 issued and outstanding, actual and as adjusted for this offering, respectively)

    270     308  

Additional paid-in capital

    367,242     448,004  

Accumulated net investment income, net of cumulative dividends of $87,348

    17,446     17,446  

Accumulated net realized gain from investments, net of cumulative dividends of $16,911

    (15,414 )   (15,414 )

Net unrealized appreciation, net of income taxes

    55,992     55,992  
           

Total net asset value

    425,536     506,336  
           

Total capitalization

  $ 765,122   $ 765,122  
           

(1)
As of June 19, 2012, we had approximately $174 million outstanding under our $277.5 million credit facility. This table has not been adjusted to reflect our additional borrowings under the credit facility subsequent to March 31, 2012.

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UNDERWRITING

        Under the terms and subject to the conditions contained in an underwriting agreement dated June 21, 2012, the underwriters named below, for whom Raymond James & Associates, Inc. is acting as representative, have severally agreed to purchase, and we have agreed to sell to them, the number of shares of common stock indicated below:

Underwriter
  Number of Shares  

Raymond James & Associates, Inc. 

    1,537,500  

Robert W. Baird & Co. Incorporated

    693,750  

BB&T Capital Markets, a division of Scott & Stringfellow, LLC

    562,500  

Janney Montgomery Scott LLC

    318,750  

Ladenburg Thalmann & Co. Inc. 

    318,750  

Sanders Morris Harris Inc. 

    318,750  
       

Total

    3,750,000  
       

        The underwriting agreement provides that the obligations of the underwriters to pay for and accept delivery of the shares of common stock offered hereby are subject to the approval of certain legal matters by their counsel and to certain other conditions. The underwriters are severally obligated to take and pay for all shares of common stock offered hereby (other than those covered by the underwriters' over-allotment option described below) if any such shares are taken. We have agreed to indemnify the underwriters against certain liabilities, including liabilities under the Securities Act.

        Our common stock is listed on the New York Stock Exchange under the symbol "MAIN."

Over-Allotment Option

        We have granted to the underwriters an option, exercisable for 30 days from the date of this prospectus supplement, to purchase up to an aggregate of 562,500 additional shares of common stock at the public offering price set forth on the cover page hereof, less the underwriting discount. The underwriters may exercise this option solely for the purpose of covering over-allotments, if any, made in connection with the offering of the shares of common stock offered hereby. To the extent such option is exercised, each underwriter will become obligated, subject to certain conditions, to purchase approximately the same percentage of such additional shares of common stock as the number set forth next to such underwriter's name in the preceding table bears to the total number of shares set forth next to the names of all underwriters in the preceding table.

Lock-Up Agreements

        We, and certain of our executive officers and directors, have agreed, subject to certain exceptions, not to issue, sell, offer to sell, contract or agree to sell, hypothecate, pledge, transfer, grant any option to purchase, establish an open put equivalent position or otherwise dispose of or agree to dispose of directly or indirectly, any shares of our common stock, or any securities convertible into or exercisable or exchangeable for any shares of our common stock or any right to acquire shares of our common stock, for 30 days from the date of this prospectus supplement, subject to extension upon material announcements or earnings releases. The representative, at

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any time and without notice, may release all or any portion of the common stock subject to the foregoing lock-up agreements.

Underwriting Discounts

        The underwriters initially propose to offer the shares directly to the public at the public offering price set forth on the cover page of this prospectus supplement and to certain dealers at a price that represents a concession not in excess of $0.54 per share below the public offering price. After the initial public offering of the shares, the offering price and other selling terms may be changed by the underwriters.

        The following table provides information regarding the per share and total underwriting discount that we are to pay to the underwriters. These amounts are shown assuming both no exercise and full exercise of the underwriters' option to purchase up to 562,500 additional shares from us.

 
  Per Share   Total without
Exercise of
Over-allotment
  Total with
Full Exercise of
Over-allotment
 

Underwriting discount payable by us on shares sold to the public

  $ 0.90   $ 3,375,000   $ 3,881,250  

        We will pay all expenses incident to the offering and sale of shares of our common stock by us in this offering. We estimate that the total expenses of the offering, excluding the underwriting discount will be approximately $200,000.

        A prospectus supplement in electronic format may be made available on the web sites maintained by one or more of the underwriters, or selling group members, if any, participating in this offering. The representative may agree to allocate a number of shares to underwriters and selling group members for the sale to their online brokerage account holders. Internet distributions will be allocated by the underwriters and selling group members that will make Internet distributions on the same basis as other allocations. The representative may agree to allocate a number of shares to underwriters for sale to their online brokerage account holders.

Price Stabilization, Short Positions and Penalty Bids

        In connection with this offering, the underwriters may purchase and sell shares of our common stock in the open market. These transactions may include over-allotment, syndicate covering transactions and stabilizing transactions. An over-allotment involves syndicate sales of shares in excess of the number of shares to be purchased by the underwriters in the offering, which creates a syndicate short position. Syndicate covering transactions involve purchases of shares in the open market after the distribution has been completed in order to cover syndicate short positions.

        Stabilizing transactions consist of some bids or purchases of shares of our common stock made for the purpose of preventing or slowing a decline in the market price of the shares while the offering is in progress.

        In addition, the underwriters may impose penalty bids, under which they may reclaim the selling concession from a syndicate member when the shares of our common stock originally sold by that syndicate member are purchased in a stabilizing transaction or syndicate covering transaction to cover syndicate short positions.

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        Similar to other purchase transactions, these activities may have the effect of raising or maintaining the market price of the common stock or preventing or slowing a decline in the market price of the common stock. As a result, the price of the common stock may be higher than the price that might otherwise exist in the open market. Except for the sale of shares of our common stock in this offering, the underwriters may carry out these transactions on the New York Stock Exchange, in the over-the-counter market or otherwise.

        Neither the underwriters nor we make any representation or prediction as to the direction or magnitude of any effect that the transactions described above may have on the price of the shares. In addition, neither the underwriters nor we make any representation that the underwriters will engage in these transactions or that these transactions, once commenced, will not be discontinued without notice.

Conflicts of Interest

        An affiliate of BB&T Capital Markets, an underwriter in this offering, acts as agent and a lender under our $277.5 million credit facility. Certain of the net proceeds from the sale of our common stock, not including underwriting compensation, may be paid to such affiliate of BB&T Capital Markets in connection with the repayment of debt owed under our $277.5 million credit facility. As a result, BB&T Capital Markets and/or its affiliate may receive more than 5% of the net proceeds of this offering, not including underwriting compensation.

        The underwriters and/or their affiliates from time to time provide and may in the future provide investment banking, commercial banking and financial advisory services to us, for which they have received and may receive customary compensation.

        In addition, the underwriters and/or their affiliates may from time to time refer investment banking clients to us as potential portfolio investments. If we invest in those clients, we may utilize net proceeds from this offering to fund such investments, and the referring underwriter or its affiliate may receive placement fees from its client in connection with such financing, which placement fees may be paid out of the amount funded by us.

        The addresses of the underwriters are: Raymond James & Associates, Inc., 880 Carillon Parkway, St. Petersburg, Florida 33716; BB&T Capital Markets, 901 East Byrd Street, Suite 410, Richmond, Virginia 23219; Robert W. Baird & Co. Incorporated, 777 East Wisconsin Avenue, Milwaukee, Wisconsin 53202; Janney Montgomery Scott LLC, 1801 Market Street, Philadelphia, Pennsylvania 19103; Ladenburg Thalmann & Co. Inc., 520 Madison Avenue, 9th Floor, New York, New York 10022; Sanders Morris Harris Inc., 600 Travis, Suite 5800, Houston, Texas 77002.


LEGAL MATTERS

        Certain legal matters regarding the shares of common stock offered hereby will be passed upon for us by Sutherland Asbill & Brennan LLP, Washington D.C., and certain legal matters in connection with this offering will be passed upon for the underwriters by Bass, Berry & Sims PLC, Memphis, Tennessee.


INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

        The consolidated financial statements, Schedule 12-14 and the schedule of Senior Securities of Main Street Capital Corporation, included in the accompanying prospectus have been so included in reliance upon the reports of Grant Thornton LLP, independent registered public

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accountants, upon the authority of said firm as experts in giving said reports. Grant Thornton LLP's principal business address is 333 Clay Street, 2700 Three Allen Center, Houston, Texas 77002.


AVAILABLE INFORMATION

        We have filed with the SEC a registration statement on Form N-2, together with all amendments and related exhibits, under the Securities Act, with respect to our shares of common stock offered by this prospectus supplement. The registration statement contains additional information about us and our shares of common stock being offered by this prospectus supplement.

        We file with or submit to the SEC annual, quarterly and current reports, proxy statements and other information meeting the informational requirements of the Securities Exchange Act of 1934. You may inspect and copy these reports, proxy statements and other information, as well as the registration statement and related exhibits and schedules, at the Public Reference Room of the SEC at 100 F Street, N.E., Washington, D.C. 20549. You may obtain information on the operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330. The SEC maintains an Internet site that contains reports, proxy and information statements and other information filed electronically by us with the SEC, which are available on the SEC's website at www.sec.gov. Copies of these reports, proxy and information statements and other information may be obtained, after paying a duplicating fee, by electronic request at the following e-mail address: publicinfo@sec.gov, or by writing the SEC's Public Reference Section, 100 F Street, N.E., Washington, D.C. 20549.

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PROSPECTUS

$500,000,000

GRAPHIC

Main Street Capital Corporation

Common Stock



           We may offer, from time to time, up to $500,000,000 of our common stock, $0.01 par value per share, in one or more offerings. Our common stock may be offered at prices and on terms to be disclosed in one or more supplements to this prospectus. The offering price per share of our common stock, less any underwriting commissions or discounts, will not be less than the net asset value per share of our common stock at the time of the offering, except (i) with the requisite approval of our common stockholders or (ii) under such other circumstances as the Securities and Exchange Commission may permit. On June 15, 2011, our common stockholders voted to allow us to issue common stock at a price below net asset value per share for a period of one year ending on June 14, 2012. Our stockholders did not specify a maximum discount below net asset value at which we are able to issue our common stock; however, we cannot issue shares of our common stock below net asset value unless our Board of Directors determines that it would be in our and our stockholders' best interests to do so. We are seeking approval of a similar proposal from our stockholders at our 2012 annual stockholders meeting to be held on June 14, 2012. Sales of common stock at prices below net asset value per share dilute the interests of existing stockholders, have the effect of reducing our net asset value per share and may reduce our market price per share. In addition, continuous sales of common stock below net asset value may have a negative impact on total returns and could have a negative impact on the market price of our shares of common stock. See "Sales of Common Stock Below Net Asset Value."

           Shares of closed-end investment companies such as us frequently trade at a discount to their net asset value. This risk is separate and distinct from the risk that our net asset value per share may decline. We cannot predict whether our common stock will trade above, at or below net asset value. You should read this prospectus and the applicable prospectus supplement carefully before you invest in our common stock.

           Our common stock may be offered directly to one or more purchasers through agents designated from time to time by us, or to or through underwriters or dealers. The prospectus supplement relating to the offering will identify any agents or underwriters involved in the sale of our common stock, and will disclose any applicable purchase price, fee, commission or discount arrangement between us and our agents or underwriters or among our underwriters or the basis upon which such amount may be calculated. See "Plan of Distribution." We may not sell any of our common stock through agents, underwriters or dealers without delivery of a prospectus supplement describing the method and terms of the offering of such common stock, which must be delivered to each purchaser at, or prior to, the earlier of delivery of a confirmation of sale or delivery of the shares of common stock.

           We are a principal investment firm primarily focused on providing customized debt and equity financing to lower middle market ("LMM") companies and debt capital to middle market ("Middle Market") companies. Our LMM companies generally have annual revenues between $10 million and $150 million, and our LMM portfolio investments generally range in size from $5 million to $25 million. Our Middle Market investments are made in businesses that are generally larger in size than our LMM portfolio companies.

           The LMM securities in which we invest would be rated below investment grade if they were rated by rating agencies. Below investment grade securities, which are often referred to as "junk," have predominantly speculative characteristics with respect to the issuer's capacity to pay interest and repay principal. They may also be difficult to value and are illiquid.

           Our principal investment objective is to maximize our portfolio's total return by generating current income from our debt investments and capital appreciation from our equity and equity related investments, including warrants, convertible securities and other rights to acquire equity securities in a portfolio company.

           We are an internally managed, closed-end, non-diversified management investment company that has elected to be treated as a business development company under the Investment Company Act of 1940.

           Our common stock is listed on the New York Stock Exchange under the symbol "MAIN." On May 22, 2012, the last reported sale price of our common stock on the New York Stock Exchange was $23.38 per share.



        Investing in our common stock involves a high degree of risk, and should be considered highly speculative. See "Risk Factors" beginning on page 13 to read about factors you should consider, including the risk of leverage and dilution, before investing in our common stock.

           This prospectus and the accompanying prospectus supplement contain important information about us that a prospective investor should know before investing in our common stock. Please read this prospectus and the accompanying prospectus supplement before investing and keep them for future reference. We file annual, quarterly and current reports, proxy statements and other information with the Securities and Exchange Commission. This information is available free of charge by contacting us at 1300 Post Oak Boulevard, Suite 800, Houston, Texas 77056 or by telephone at (713) 350-6000 or on our website at www.mainstcapital.com. Information contained on our website is not incorporated by reference into this prospectus, and you should not consider that information to be part of this prospectus. The Securities and Exchange Commission also maintains a website at www.sec.gov that contains such information.

           Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.



The date of this prospectus is May 25, 2012


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TABLE OF CONTENTS

 
  Page  

Prospectus Summary

    1  

Fees and Expenses

    11  

Risk Factors

    13  

Cautionary Statement Concerning Forward-Looking Statements

    30  

Use of Proceeds

    31  

Price Range of Common Stock and Distributions

    31  

Selected Financial Data

    36  

Management's Discussion and Analysis of Financial Condition and Results of Operations

    38  

Senior Securities

    64  

Business

    65  

Portfolio Companies

    78  

Management

    89  

Certain Relationships and Related Transactions

    110  

Control Persons and Principal Stockholders

    112  

Sales of Common Stock Below Net Asset Value

    113  

Dividend Reinvestment Plan

    118  

Description of Capital Stock

    119  

Material U.S. Federal Income Tax Considerations

    127  

Regulation

    133  

Plan of Distribution

    140  

Custodian, Transfer and Distribution Paying Agent and Registrar

    141  

Brokerage Allocation and Other Practices

    141  

Legal Matters

    141  

Independent Registered Public Accounting Firm

    141  

Available Information

    142  

Privacy Notice

    142  

Index to Financial Statements

    F-1  

        This prospectus is part of a registration statement that we have filed with the Securities and Exchange Commission, or SEC, using the "shelf" registration process. Under the shelf registration process, we may offer, from time to time, up to $500,000,000 of our common stock on terms to be determined at the time of the offering. This prospectus provides you with a general description of the common stock that we may offer. Each time we use this prospectus to offer common stock, we will provide a prospectus supplement that will contain specific information about the terms of that offering. The prospectus supplement may also add, update or change information contained in this prospectus. To the extent required by law, we will amend or supplement the information contained in this prospectus and any accompanying prospectus supplement to reflect any material changes to such information subsequent to the date of the prospectus and any accompanying prospectus supplement and prior to the completion of any offering pursuant to the prospectus and any accompanying prospectus supplement. Please carefully read this prospectus and any accompanying prospectus supplement together with the additional information described under "Available Information" and "Risk Factors" before you make an investment decision.

        No dealer, salesperson or other person is authorized to give any information or to represent anything not contained in this prospectus or any accompanying supplement to this prospectus. You must not rely on any unauthorized information or representations not contained in this prospectus or any accompanying prospectus supplement as if we had authorized it. This prospectus and any accompanying prospectus supplement do not constitute an offer to sell or a solicitation of any offer to buy any security other than the registered securities to which they relate, nor do they constitute an offer to sell or a solicitation of an offer to buy any securities in any jurisdiction to any person to whom it is unlawful to make such an offer or solicitation in such jurisdiction. The information contained in this prospectus and any accompanying prospectus supplement is accurate as of the dates on their covers.


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PROSPECTUS SUMMARY

        This summary highlights some of the information in this prospectus. It is not complete and may not contain all of the information that you may want to consider. You should read the entire prospectus and any prospectus supplement carefully, including the section entitled "Risk Factors."

Organization

        Main Street Capital Corporation ("MSCC") was formed on March 9, 2007 for the purpose of (i) acquiring 100% of the equity interests of Main Street Mezzanine Fund, LP ("MSMF") and its general partner, Main Street Mezzanine Management, LLC ("MSMF GP"), (ii) acquiring 100% of the equity interests of Main Street Capital Partners, LLC (the "Investment Manager"), (iii) raising capital in an initial public offering, which was completed in October 2007 (the "IPO"), and (iv) thereafter operating as an internally managed business development company ("BDC") under the Investment Company Act of 1940, as amended (the "1940 Act"). MSMF is licensed as a Small Business Investment Company ("SBIC") by the United States Small Business Administration ("SBA") and the Investment Manager acts as MSMF's manager and investment adviser. Because the Investment Manager, which employs all of the executive officers and other employees of MSCC, is wholly owned by us, we do not pay any external investment advisory fees, but instead we incur the operating costs associated with employing investment and portfolio management professionals through the Investment Manager. The IPO and related transactions discussed above were consummated in October 2007 and are collectively termed the "Formation Transactions."

        On January 7, 2010, MSCC consummated transactions (the "Exchange Offer") to exchange 1,239,695 shares of its common stock for approximately 88% of the total dollar value of the limited partner interests in Main Street Capital II, LP ("MSC II" and, together with MSMF, the "Funds"). Pursuant to the terms of the Exchange Offer, 100% of the membership interests in the general partner of MSC II, Main Street Capital II GP, LLC ("MSC II GP"), were also transferred to MSCC for no consideration. MSC II commenced operations in January 2006, is an investment fund that operates as an SBIC and is also managed by the Investment Manager. During the first three months of 2012, MSCC exchanged 229,634 shares of its common stock to acquire all of the remaining minority ownership in the total dollar value of the MSC II limited partnership interests, including approximately 5% owned by affiliates of MSCC (the "Final MSC II Exchange"). After the acquisition of these remaining MSC II equity interests, MSCC owns 100% of MSC II as of March 31, 2012. The Exchange Offer and related transactions, including the transfer of the MSC II GP interests and the Final MSC II Exchange, are collectively termed the "Exchange Offer Transactions."

        MSCC has elected to be treated for federal income tax purposes as a regulated investment company ("RIC") under Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"). As a result, MSCC generally will not pay corporate level federal income taxes on any net ordinary income or capital gains that it distributes to its stockholders as dividends.

        MSCC has direct or indirect subsidiaries that have elected to be taxable entities (the "Taxable Subsidiaries"). The primary purpose of these entities is to hold certain investments that generate "pass through" income for tax purposes. The Taxable Subsidiaries are each taxed at their normal corporate tax rates based on their taxable income.

        Unless otherwise noted or the context otherwise indicates, the terms "we," "us," "our" and "Main Street" refer to MSCC and its subsidiaries, including the Funds and the Taxable Subsidiaries.

Overview

        We are a principal investment firm primarily focused on providing customized debt and equity financing to lower middle market ("LMM") companies and debt capital to middle market ("Middle

 

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Market") companies. Our portfolio investments are typically made to support management buyouts, recapitalizations, growth financings, refinancings and acquisitions of companies that operate in diverse industry sectors. We seek to partner with entrepreneurs, business owners and management teams and generally provide "one stop" financing alternatives within our LMM portfolio. We invest primarily in secured debt instruments, equity investments, warrants and other securities of LMM companies based in the United States and in secured debt instruments of Middle Market companies generally headquartered in the United States. Our principal investment objective is to maximize our portfolio's total return by generating current income from our debt investments and capital appreciation from our equity and equity related investments, including warrants, convertible securities and other rights to acquire equity securities in a portfolio company. Our LMM companies generally have annual revenues between $10 million and $150 million, and our LMM portfolio investments generally range in size from $5 million to $25 million. Our Middle Market investments are made in businesses that are generally larger in size than our LMM portfolio companies and our Middle Market portfolio companies had weighted average annual revenues of $476 million as of March 31, 2012. Our other portfolio ("Other Portfolio") investments primarily consist of investments which are not consistent with the typical profiles for LMM and Middle Market portfolio investments, including investments which may be managed by third parties.

        We seek to fill the current financing gap for LMM businesses, which, historically, have had more limited access to financing from commercial banks and other traditional sources. The underserved nature of the lower middle market creates the opportunity for us to meet the financing needs of LMM companies while also negotiating favorable transaction terms and equity participations. Our ability to invest across a company's capital structure, from senior secured loans to equity securities, allows us to offer portfolio companies a comprehensive suite of financing solutions, or "one stop" financing. Providing customized, "one stop" financing solutions has become even more relevant to our LMM portfolio companies in the current investing environment. We generally seek to partner directly with entrepreneurs, management teams and business owners in making our investments. We believe that our LMM investment strategy has a lower correlation to the broader debt and equity markets.

        As of March 31, 2012, we had debt and equity investments in 53 LMM portfolio companies with an aggregate fair value of $388.1 million, with a total cost basis of approximately $322.3 million, and a weighted average annual effective yield on our LMM debt investments of approximately 14.9%. Approximately 77% of our total LMM portfolio investments at cost were in the form of debt investments and 98% of such debt investments at cost were secured by first priority liens on the assets of our LMM portfolio companies as of March 31, 2012. At March 31, 2012, we had equity ownership in approximately 92% of our LMM portfolio companies and the average fully diluted equity ownership in those portfolio companies was approximately 33%. As of December 31, 2011, we had debt and equity investments in 54 LMM portfolio companies with an aggregate fair value of $415.7 million with a total cost basis of approximately $349.0 million and a weighted average annual effective yield on our LMM debt investments of approximately 14.8%. The weighted average annual yields were computed using the effective interest rates for all debt investments as of March 31, 2012 and December 31, 2011, including amortization of deferred debt origination fees and accretion of original issue discount but excluding liquidation fees payable upon repayment and any debt investments on non-accrual status.

        In addition to our LMM investment strategy, we opportunistically pursue investments in Middle Market companies. Our Middle Market portfolio investments primarily consist of direct or secondary purchases of interest-bearing debt securities in companies that are generally larger in size than the LMM companies included in our LMM portfolio. Our Middle Market portfolio debt investments are generally secured by either a first or second priority lien on the assets of the company and have an expected duration of between three and five years.

        As of March 31, 2012, we had Middle Market portfolio investments in 62 companies collectively totaling approximately $251.0 million in fair value with a total cost basis of approximately

 

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$249.8 million. The weighted average revenues for the 62 Middle Market portfolio company investments were approximately $476 million. Our Middle Market debt investments are primarily in the form of debt investments and 86% of such debt investments at cost were secured by first priority liens on portfolio company assets as of March 31, 2012. The weighted average annual effective yield on our Middle Market portfolio debt investments was approximately 9.2% as of March 31, 2012. As of December 31, 2011, we had Middle Market portfolio investments in 57 companies collectively totaling approximately $226.5 million in fair value with a total cost basis of approximately $228.9 million. The weighted average revenues for the 57 Middle Market portfolio company investments were approximately $473 million. The weighted average annual effective yield on our Middle Market portfolio debt investments was approximately 9.5% as of December 31, 2011. The weighted average annual yields were computed using the effective interest rates for all debt investments as of March 31, 2012 and December 31, 2011, including amortization of deferred debt origination fees and accretion of original issue discount but excluding liquidation fees payable upon repayment.

        As of March 31, 2012, we had Other Portfolio investments in 4 companies collectively totaling approximately $25.1 million in both fair value and cost basis. As of December 31, 2011, we had Other Portfolio investments in 3 companies collectively totaling approximately $14.1 million in both fair value and cost basis.

        Our portfolio investments are generally made through MSCC and the Funds. MSCC and the Funds share the same investment strategies and criteria, although they are subject to different regulatory regimes (see "Regulation"). An investor's return in MSCC will depend, in part, on the Funds' investment returns as the Funds are wholly owned subsidiaries of MSCC.

        The level of new portfolio investment activity will fluctuate from period to period based upon our view of the current economic fundamentals, our ability to identify new investment opportunities that meet our investment criteria, and our ability to consummate the identified opportunities. The level of new investment activity, and associated interest and fee income, will directly impact future investment income. In addition, the level of dividends paid by portfolio companies and the portion of our portfolio debt investments on non-accrual status will directly impact future investment income. While we intend to grow our portfolio and our investment income over the long-term, our growth and our operating results may be more limited during depressed economic periods. However, we intend to appropriately manage our cost structure and liquidity position based on applicable economic conditions and our investment outlook. The level of realized gains or losses and unrealized appreciation or depreciation will also fluctuate depending upon portfolio activity and the performance of our individual portfolio companies. The changes in realized gains and losses and unrealized appreciation or depreciation could have a material impact on our operating results.

        MSCC and its consolidated subsidiaries are internally managed by the Investment Manager, a wholly owned subsidiary of MSCC, which employs all of the executive officers and other employees of Main Street. Because the Investment Manager is wholly owned by MSCC, MSCC does not pay any external investment advisory fees, but instead incurs the operating costs associated with employing investment and portfolio management professionals through the Investment Manager. We believe that our internally managed structure provides us with a beneficial operating expense structure when compared to other publicly-traded and privately-held investment firms which are externally managed, and our internally managed structure allows us the opportunity to leverage our non-interest operating expenses as we grow our investment portfolio. For the quarter ended March 31, 2012, the ratio of our total operating expenses, excluding interest expense, as a percentage of our quarterly average total assets was 2.0% on an annualized basis, compared to 2.5% on an annualized basis for the quarter ended March 31, 2011 and 2.2% for the year ended December 31, 2011.

        You should be aware that investments in our portfolio companies carry a number of risks including, but not limited to, investing in companies which may have limited operating histories and

 

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financial resources and other risks common to investing in below investment grade debt and equity investments in private, smaller companies. Please see "Risk Factors—Risks Related to Our Investments" for a more complete discussion of the risks involved with investing in our portfolio companies.

        Our principal executive offices are located at 1300 Post Oak Boulevard, Suite 800, Houston, Texas 77056, and our telephone number is (713) 350-6000. We maintain a website at http://www.mainstcapital.com. Information contained on our website is not incorporated by reference into this prospectus or any prospectus supplement, and you should not consider that information to be part of this prospectus or any prospectus supplement.

Business Strategies

        Our principal investment objective is to maximize our portfolio's total return by generating current income from our debt investments and realizing capital appreciation from our equity and equity-related investments, including warrants, convertible securities and other rights to acquire equity securities in a portfolio company. We have adopted the following business strategies to achieve our investment objective. Please see "Business—Business Strategies" for a more complete discussion of our business strategies.

Risk Factors

        Investing in our common stock involves a high degree of risk. You should consider carefully the information found in "Risk Factors," including the following risks:

 

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Investment Criteria

        Our investment team has identified the following investment criteria that it believes are important in evaluating prospective portfolio companies. Our investment team uses these criteria in evaluating investment opportunities. However, not all of these criteria have been, or will be, met in connection with each of our investments. Please see "Business—Investment Criteria" for a more complete discussion of our investment criteria.

 

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Recent Developments

        During May 2012, we expanded the Credit Facility from $235.0 million to $277.5 million. The $42.5 million increase in total commitments included commitment increases by three lenders currently participating in the Credit Facility. The amended Credit Facility contains an accordion feature that allows for a further increase in total commitments under the facility up to $350 million of total commitments from new and existing lenders on the same terms and conditions as the existing commitments. The increase in total commitments provides us access to additional financing capacity in support of our future investment and operational activities.

        During May 2012, we declared monthly dividends of $0.145 per share for each of July, August and September 2012. These monthly dividends equal a total of $0.435 per share for the third quarter of 2012.

        During April 2012, we completed an LMM portfolio investment in Bridge Capital Solutions Corporation ("Bridge Capital"). The investment consists of $5.0 million in first lien, senior secured debt with equity warrant participation. Headquartered on Long Island in Hauppauge, New York, Bridge Capital is a financial services firm that provides accelerated cash flow solutions to small businesses. The proceeds of our investment were used to refinance certain debt obligations of Bridge Capital and to provide additional liquidity to finance certain growth initiatives and for general working capital purposes.

The Offering

        We may offer, from time to time, up to $500,000,000 of our common stock, on terms to be determined at the time of the offering. Our common stock may be offered at prices and on terms to be disclosed in one or more prospectus supplements.

        Our common stock may be offered directly to one or more purchasers by us or through agents designated from time to time by us, or to or through underwriters or dealers. The prospectus supplement relating to the offering will disclose the terms of the offering, including the name or names of any agents or underwriters involved in the sale of our common stock by us, the purchase price, and any fee, commission or discount arrangement between us and our agents or underwriters or among our underwriters or the basis upon which such amount may be calculated. See "Plan of Distribution." We may not sell any of our common stock through agents, underwriters or dealers without delivery of a prospectus supplement describing the method and terms of the offering of our common stock.

        Set forth below is additional information regarding the offering of our common stock:

 

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Use of proceeds

  We intend to use the net proceeds from any offering to make investments in accordance with our investment objective and strategies described in this prospectus or any prospectus supplement, to make investments in marketable securities and idle funds investments, which may include investments in secured intermediate term bank debt, rated debt securities and other income producing investments, to pay our operating expenses and other cash obligations, and for general corporate purposes. See "Use of Proceeds."

New York Stock Exchange symbol

 

"MAIN"

Dividends

 

Our dividends and other distributions, if any, will be determined by our Board of Directors from time to time.

 

Our ability to declare dividends depends on our earnings, our overall financial condition (including our liquidity position), maintenance of our RIC status and such other factors as our Board of Directors may deem relevant from time to time. From our IPO through the third quarter of 2008 we paid quarterly dividends, but in the fourth quarter of 2008 we began paying, and we intend to continue paying, monthly dividends to our stockholders.

 

When we make monthly distributions, we will be required to determine the extent to which such distributions are paid out of current or accumulated earnings, recognized capital gains or capital. To the extent there is a return of capital, investors will be required to reduce their basis in our stock for federal tax purposes. In the future, our distributions may include a return of capital.

Taxation

 

MSCC has elected to be treated for federal income tax purposes as a RIC under Subchapter M of the Code. Accordingly, we generally will not pay corporate-level federal income taxes on any net ordinary income or capital gains that we distribute to our stockholders as dividends. To maintain our RIC tax treatment, we must meet specified source-of-income and asset diversification requirements and distribute annually at least 90% of our net ordinary income and realized net short-term capital gains in excess of realized net long-term capital losses, if any.

 

Depending on the level of taxable income earned in a tax year, we may choose to carry forward taxable income in excess of current year distributions into the next tax year and pay a 4% excise tax on such income. Any such carryover taxable income must be distributed through a dividend declared prior to filing the final tax return related to the year which generated such taxable income. See "Material U.S. Federal Income Tax Considerations."

 

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Dividend reinvestment plan

 

We have adopted a dividend reinvestment plan for our stockholders. The dividend reinvestment plan is an "opt out" reinvestment plan. As a result, if we declare dividends, then stockholders' cash dividends will be automatically reinvested in additional shares of our common stock, unless they specifically "opt out" of the dividend reinvestment plan so as to receive cash dividends. Stockholders who receive dividends in the form of stock will be subject to the same federal, state and local tax consequences as stockholders who elect to receive their dividends in cash. See "Dividend Reinvestment Plan."

Trading at a discount

 

Shares of closed-end investment companies frequently trade at a discount to their net asset value. This risk is separate and distinct from the risk that our net asset value per share may decline. We cannot predict whether our shares will trade above, at or below net asset value.

Sales of common stock below
net asset value

 

The offering price per share of our common stock, less any underwriting commissions or discounts, will not be less than the net asset value per share of our common stock at the time of the offering, except (i) with the requisite approval of our common stockholders or (ii) under such other circumstances as the Securities and Exchange Commission may permit. On June 15, 2011, our common stockholders voted to allow us to issue common stock at a price below net asset value per share for a period of one year ending on June 14, 2012. Our stockholders did not specify a maximum discount below net asset value at which we are able to issue our common stock; however, we cannot issue shares of our common stock below net asset value unless our Board of Directors determines that it would be in our and our stockholders' best interests to do so. We are seeking approval of a similar proposal from our stockholders at our 2012 annual stockholders meeting to be held on June 14, 2012. Sales by us of our common stock at a discount from our net asset value pose potential risks for our existing stockholders whether or not they participate in the offering, as well as for new investors who participate in the offering. See "Sales of Common Stock Below Net Asset Value."

 

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Available Information

 

We file annual, quarterly and current reports, proxy statements and other information with the SEC under the Securities Exchange Act of 1934, or the "Exchange Act." You can inspect any materials we file with the SEC, without charge, at the SEC's Public Reference Room at 100 F Street, N.E., Washington, D.C. 20549. Please call the SEC at 1-800-SEC-0330 for further information on the Public Reference Room. The information we file with the SEC is available free of charge by contacting us at 1300 Post Oak Boulevard, Suite 800, Houston, TX 77056, by telephone at (713) 350-6000 or on our website at http://www.mainstcapital.com. The SEC also maintains a website that contains reports, proxy statements and other information regarding registrants, including us, that file such information electronically with the SEC. The address of the SEC's website is http://www.sec.gov. Information contained on our website or on the SEC's website about us is not incorporated into this prospectus, and you should not consider information contained on our website or on the SEC's website to be part of this prospectus.

 

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FEES AND EXPENSES

        The following table is intended to assist you in understanding the costs and expenses that an investor in this offering will bear directly or indirectly. We caution you that some of the percentages indicated in the table below are estimates and may vary. Except where the context suggests otherwise, whenever this prospectus contains a reference to fees or expenses paid by "you," "us" or "Main Street," or that "we" will pay fees or expenses, stockholders will indirectly bear such fees or expenses as investors in us.

Stockholder Transaction Expenses:

       

Sales load (as a percentage of offering price)

    %(1)

Offering expenses (as a percentage of offering price)

    %(2)

Dividend reinvestment plan expenses

    %(3)
       

Total stockholder transaction expenses (as a percentage of offering price)

    %(4)

Annual Expenses (as a percentage of net assets attributable to common stock):

       

Operating expenses

    3.34 %(5)

Interest payments on borrowed funds

    3.40 %(6)

Income tax expense

    1.48 %(7)

Acquired fund fees and expenses

    0.07 %(8)
       

Total annual expenses

    8.29 %

(1)
In the event that our common stock is sold to or through underwriters, a corresponding prospectus supplement will disclose the applicable sales load.

(2)
In the event that we conduct on offering of our common stock, a corresponding prospectus supplement will disclose the estimated offering expenses.

(3)
The expenses of administering our dividend reinvestment plan are included in operating expenses.

(4)
Total stockholder transaction expenses may include sales load and will be disclosed in a future prospectus supplement, if any.

(5)
Operating expenses represent the estimated annual expenses of MSCC and its consolidated subsidiaries. Because the Investment Manager is wholly owned by MSCC, MSCC does not pay any external investment advisory fees, but instead incurs the operating costs associated with employing investment and portfolio management professionals through the Investment Manager.

(6)
Interest payments on borrowed funds represent our estimated annual interest payments on borrowed funds based on current debt levels as adjusted for projected increases (but not decreases) in debt levels over the next twelve months.

(7)
Income tax expense primarily relates to the accrual of deferred taxes on the net unrealized appreciation from portfolio investments held in Taxable Subsidiaries, which is non-cash in nature and may vary significantly from period to period. We are required to include deferred taxes in calculating our annual expenses even though these deferred taxes are not currently payable. Due to the variable nature of this expense and the difficulty in providing an estimate for future periods, this income tax expense estimate is based upon the actual amount of income tax expense for the year ended December 31, 2011. The ratio of total annual expenses to net assets, before income tax expense, would be 6.81%.

 

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(8)
Acquired fund fees and expenses represent the estimated indirect expense incurred due to investments in other investment companies and private funds.

Example

        The following example demonstrates the projected dollar amount of total cumulative expenses that would be incurred over various periods with respect to a hypothetical investment in our common stock. In calculating the following expense amounts, we have assumed we would have no additional leverage and that our annual operating expenses would remain at the levels set forth in the table above. In the event that shares to which this prospectus relates are sold to or through underwriters, a corresponding prospectus supplement will restate this example to reflect the applicable sales load.

 
  1 Year   3 Years   5 Years   10 Years  

You would pay the following expenses on a $1,000 investment, assuming a 5.0% annual return

  $ 81.5   $ 236.6   $ 381.7   $ 704.7  

        The example and the expenses in the table above should not be considered a representation of our future expenses, and actual expenses may be greater or less than those shown. While the example assumes, as required by the SEC, a 5.0% annual return, our performance will vary and may result in a return greater or less than 5.0%. In addition, while the example assumes reinvestment of all dividends at net asset value, participants in our dividend reinvestment plan will receive a number of shares of our common stock, determined by dividing the total dollar amount of the dividend payable to a participant by (i) the market price per share of our common stock at the close of trading on the dividend payment date in the event that we use newly issued shares to satisfy the share requirements of the dividend reinvestment plan or (ii) the average purchase price of all shares of common stock purchased by the administrator of the dividend reinvestment plan in the event that shares are purchased in the open market to satisfy the share requirements of the dividend reinvestment plan, which may be at, above or below net asset value. See "Dividend Reinvestment Plan" for additional information regarding our dividend reinvestment plan.

 

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RISK FACTORS

        Investing in our common stock involves a number of significant risks. In addition to the other information contained in this prospectus and any accompanying prospectus supplement, you should consider carefully the following information before making an investment in our common stock. The risks set out below are not the only risks we face. Additional risks and uncertainties not presently known to us or not presently deemed material by us might also impair our operations and performance. If any of the following events occur, our business, financial condition and results of operations could be materially and adversely affected. In such case, our net asset value and the trading price of our common stock could decline, and you may lose all or part of your investment.

Risks Relating to Economic Conditions

Deterioration in the economy and financial markets increases the likelihood of adverse effects on our financial position and results of operations. Such economic adversity could impair our portfolio companies' financial positions and operating results and affect the industries in which we invest, which could, in turn, harm our operating results.

        The broader economic fundamentals of the United States economy remain uncertain. Unemployment levels remain elevated and other economic fundamentals remain depressed. In the event that the United States economic performance contracts, it is likely that the financial results of small- to mid-sized companies, like those in which we invest, could experience deterioration or limited growth, which could ultimately lead to difficulty in meeting their debt service requirements and an increase in defaults. Consequently, we can provide no assurance that the performance of certain of our portfolio companies will not be negatively impacted by economic or other conditions, which could also have a negative impact on our future results.

        Although we have been able to secure access to additional liquidity, including our $235 million credit facility, periodic follow-on equity offerings, and the increase in available leverage through the SBIC program as part of the American Recovery and Reinvestment Act of 2009 enacted in February 2009 (the "Stimulus Bill"), the potential for volatility in the debt and equity capital markets provides no assurance that debt or equity capital will be available to us in the future on favorable terms, or at all.

Risks Relating to Our Business and Structure

Our investment portfolio is and will continue to be recorded at fair value, with our Board of Directors having final responsibility for overseeing, reviewing and approving, in good faith, our determination of fair value and, as a result, there is and will continue to be uncertainty as to the value of our portfolio investments.

        Under the 1940 Act, we are required to carry our portfolio investments at market value or, if there is no readily available market value, at fair value as determined by us with our Board of Directors having final responsibility for overseeing, reviewing and approving, in good faith, our determination of fair value. Typically, there is not a public market for the securities of the privately held LMM companies in which we have invested and will generally continue to invest. As a result, we value these securities quarterly at fair value based on inputs from management, a nationally recognized independent advisor (on a rotational basis) and our audit committee with the oversight, review and approval of our Board of Directors. In addition, the market for Middle Market portfolio investments is generally not a liquid market, and therefore, we primarily use observable inputs to determine the fair value of these investments quarterly through obtaining third party quotes and other independent pricing, which are reviewed by our audit committee with the oversight, review and approval of our Board of Directors. See "Business—Determination of Net Asset Value and Portfolio Valuation Process" for a more detailed description of our valuation process.

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        The determination of fair value and consequently, the amount of unrealized gains and losses in our portfolio, are to a certain degree, subjective and dependent on a valuation process approved by our Board of Directors. Certain factors that may be considered in determining the fair value of our investments include external events, such as private mergers, sales and acquisitions involving comparable companies. Because such valuations, and particularly valuations of private securities and private companies, are inherently uncertain, may fluctuate over short periods of time and may be based on estimates, our determinations of fair value may differ materially from the values that would have been used if a ready market for these securities existed. Due to this uncertainty, our fair value determinations may cause our net asset value on a given date to materially understate or overstate the value that we may ultimately realize on one or more of our investments. As a result, investors purchasing our common stock based on an overstated net asset value would pay a higher price than the value of our investments might warrant. Conversely, investors selling shares during a period in which the net asset value understates the value of our investments will receive a lower price for their shares than the value of our investments might warrant.

Our financial condition and results of operations depends on our ability to effectively manage and deploy capital.

        Our ability to achieve our investment objective of maximizing our portfolio's total return by generating current income from our debt investments and capital appreciation from our equity and equity-related investments, including warrants, convertible securities and other rights to acquire equity securities in a portfolio company, depends on our ability to effectively manage and deploy capital, which depends, in turn, on our investment team's ability to identify, evaluate and monitor, and our ability to finance and invest in, companies that meet our investment criteria.

        Accomplishing our investment objective on a cost-effective basis is largely a function of our investment team's handling of the investment process, its ability to provide competent, attentive and efficient services and our access to investments offering acceptable terms. In addition to monitoring the performance of our existing investments, members of our investment team are also called upon, from time to time, to provide managerial assistance to some of our portfolio companies. These demands on their time may distract them or slow the rate of investment.

        Even if we are able to grow and build upon our investment operations, any failure to manage our growth effectively could have a material adverse effect on our business, financial condition, results of operations and prospects. The results of our operations will depend on many factors, including the availability of opportunities for investment, readily accessible short and long-term funding alternatives in the financial markets and economic conditions. Furthermore, if we cannot successfully operate our business or implement our investment policies and strategies as described herein, it could negatively impact our ability to pay dividends.

We may face increasing competition for investment opportunities.

        We compete for investments with other investment funds (including private equity funds, mezzanine funds, BDCs, and SBICs), as well as traditional financial services companies such as commercial banks and other sources of funding. Many of our competitors are substantially larger and have considerably greater financial, technical and marketing resources than we do. For example, some competitors may have a lower cost of capital and access to funding sources that are not available to us. In addition, some of our competitors may have higher risk tolerances or different risk assessments than we have. These characteristics could allow our competitors to consider a wider variety of investments, establish more relationships and offer better pricing and more flexible structuring than we are able to do. We may lose investment opportunities if we do not match our competitors' pricing, terms and structure. If we are forced to match our competitors' pricing, terms and structure, we may not be able to achieve acceptable returns on our investments or may bear substantial risk of capital loss. A

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significant part of our competitive advantage stems from the fact that the market for investments in LMM companies is underserved by traditional commercial banks and other financing sources. A significant increase in the number and/or the size of our competitors in this target market could force us to accept less attractive investment terms. Furthermore, many of our competitors have greater experience operating under, or are not subject to, the regulatory restrictions that the 1940 Act imposes on us as a BDC.

We are dependent upon our key investment personnel for our future success.

        We depend on the members of our investment team, particularly Vincent D. Foster, Todd A. Reppert, Rodger A. Stout, Curtis L. Hartman, Dwayne L. Hyzak and David L. Magdol, for the identification, review, final selection, structuring, closing and monitoring of our investments. These employees have significant investment expertise and relationships that we rely on to implement our business plan. Although we have entered into a non-compete agreement with Mr. Foster, we have no guarantee that he or any other employees will remain employed with us. If we lose the services of these individuals, we may not be able to operate our business as we expect, and our ability to compete could be harmed, which could cause our operating results to suffer.

Our success depends on attracting and retaining qualified personnel in a competitive environment.

        Our growth will require that we retain new investment and administrative personnel in a competitive market. Our ability to attract and retain personnel with the requisite credentials, experience and skills depends on several factors including, but not limited to, our ability to offer competitive wages, benefits and professional growth opportunities. Many of the entities, including investment funds (such as private equity funds and mezzanine funds) and traditional financial services companies, with which we compete for experienced personnel have greater resources than we have.

        The competitive environment for qualified personnel may require us to take certain measures to ensure that we are able to attract and retain experienced personnel. Such measures may include increasing the attractiveness of our overall compensation packages, altering the structure of our compensation packages through the use of additional forms of compensation, or other steps. The inability to attract and retain experienced personnel would have a material adverse effect on our business.

Our business model depends to a significant extent upon strong referral relationships, and our inability to maintain or develop these relationships, as well as the failure of these relationships to generate investment opportunities, could adversely affect our business.

        We expect that members of our management team will maintain their relationships with intermediaries, financial institutions, investment bankers, commercial bankers, financial advisors, attorneys, accountants, consultants and other individuals within our network, and we will rely to a significant extent upon these relationships to provide us with potential investment opportunities. If our management team fails to maintain its existing relationships or develop new relationships with sources of investment opportunities, we will not be able to grow our investment portfolio. In addition, individuals with whom members of our management team have relationships are not obligated to provide us with investment opportunities, and, therefore, there is no assurance that such relationships will generate investment opportunities for us.

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Regulations governing our operation as a BDC will affect our ability to, and the way in which we, raise additional capital.

        Our business will require capital to operate and grow. We may acquire such additional capital from the following sources:

        Senior Securities.    We may issue debt securities or preferred stock and/or borrow money from banks or other financial institutions, which we refer to collectively as senior securities. As a result of issuing senior securities, we will be exposed to additional risks, including the following:

        Additional Common Stock.    We are not generally able to issue and sell our common stock at a price below net asset value per share. We may, however, sell our common stock, warrants, options or rights to acquire our common stock, at a price below the current net asset value of the common stock if our Board of Directors determines that such sale is in the best interests of our stockholders, and our stockholders approve such sale. See "—Stockholders may incur dilution if we sell shares of our common stock in one or more offerings at prices below the then current net asset value per share of our common stock or issue securities to subscribe to, convert to or purchase shares of our common stock" for a discussion of proposals approved by our stockholders that permit us to issue shares of our common stock below net asset value. We may also make rights offerings to our stockholders at prices per share less than the net asset value per share, subject to applicable requirements of the 1940 Act. If we raise additional funds by issuing more common stock or senior securities convertible into, or exchangeable for, our common stock, the percentage ownership of our stockholders at that time would decrease, and they may experience dilution. Moreover, we can offer no assurance that we will be able to issue and sell additional equity securities in the future, on favorable terms or at all.

The Funds are licensed by the SBA, and therefore subject to SBA regulations.

        MSMF and MSC II, our wholly owned subsidiaries, are licensed to act as SBICs and are regulated by the SBA. The SBA also places certain limitations on the financing terms of investments by SBICs in portfolio companies and prohibits SBICs from providing funds for certain purposes or to businesses in

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a few prohibited industries. Compliance with SBA requirements may cause the Funds to forego attractive investment opportunities that are not permitted under SBA regulations.

        Further, the SBA regulations require that a licensed SBIC be periodically examined and audited by the SBA to determine its compliance with the relevant SBA regulations. The SBA prohibits, without prior SBA approval, a "change of control" of an SBIC or transfers that would result in any person (or a group of persons acting in concert) owning 10% or more of a class of capital stock of a licensed SBIC. If the Funds fail to comply with applicable SBIC regulations, the SBA could, depending on the severity of the violation, limit or prohibit their use of debentures, declare outstanding debentures immediately due and payable, and/or limit them from making new investments. In addition, the SBA can revoke or suspend a license for willful or repeated violation of, or willful or repeated failure to observe, any provision of the Small Business Investment Act of 1958 or any rule or regulation promulgated thereunder. Such actions by the SBA would, in turn, negatively affect us.

Because we borrow money, the potential for gain or loss on amounts invested in us is magnified and may increase the risk of investing in us.

        Borrowings, also known as leverage, magnify the potential for gain or loss on invested equity capital. As we use leverage to partially finance our investments, you will experience increased risks of investing in our common stock. We, through the Funds, issue debt securities guaranteed by the SBA and sold in the capital markets. As a result of its guarantee of the debt securities, the SBA has fixed dollar claims on the assets of the Funds that are superior to the claims of our common stockholders. We may also borrow from banks and other lenders, including under our $235 million credit facility (the "Credit Facility"). See "Management's Discussion and Analysis of Financial Condition and Results of Operations—Capital Resources" for a discussion regarding our Credit Facility. If the value of our assets increases, then leveraging would cause the net asset value attributable to our common stock to increase more sharply than it would have had we not leveraged. Conversely, if the value of our assets decreases, leveraging would cause net asset value to decline more sharply than it otherwise would have had we not leveraged our business. Similarly, any increase in our income in excess of interest payable on the borrowed funds would cause our net investment income to increase more than it would without the leverage, while any decrease in our income would cause net investment income to decline more sharply than it would have had we not borrowed. Such a decline could negatively affect our ability to pay common stock dividends. Leverage is generally considered a speculative investment technique.

        As of March 31, 2012, we, through the Funds, had $220 million of outstanding indebtedness guaranteed by the SBA, which had a weighted average annualized interest cost of approximately 5.1% (exclusive of deferred financing costs). The debentures guaranteed by the SBA have a maturity of ten years, with a current weighted average remaining maturity of 6.4 years as of March 31, 2012, and require semi-annual payments of interest. We will need to generate sufficient cash flow to make required interest payments on the debentures. If we are unable to meet the financial obligations under the debentures, the SBA, as a creditor, will have a superior claim to the assets of the Funds over our stockholders in the event we liquidate or the SBA exercises its remedies under such debentures as the result of a default by us. In addition, as of March 31, 2012, we had $138 million outstanding under our Credit Facility. Borrowings under the Credit Facility bear interest, subject to our election, on a per annum basis equal to (i) the applicable LIBOR rate plus 2.50% or (ii) the applicable base rate plus 1.50%. Main Street pays unused commitment fees of 0.375% per annum on the average unused lender commitments under the Credit Facility. If we are unable to meet the financial obligations under the Credit Facility, the Credit Facility lending group will have a superior claim to the assets of MSCC and its subsidiaries (excluding the assets of the Funds) over our stockholders in the event we liquidate or the lending group exercises its remedies under the Credit Facility as the result of a default by us.

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        Illustration.    The following table illustrates the effect of leverage on returns from an investment in our common stock assuming various annual returns, net of expenses. The calculations in the table below are hypothetical and actual returns may be higher or lower than those appearing below.


Assumed Return on Our Portfolio(1)
(net of expenses)

 
  (10.0)%   (5.0)%   0.0%   5.0%   10.0%  

Corresponding net return to common stockholder

    (21.9 )%   (12.7 )%   (3.5 )%   5.6 %   14.8 %

(1)
Assumes $779.4 million in total assets, $358.0 million in debt outstanding, $425.5 million in net assets, and an average cost of funds of 4.2%. Actual interest payments may be different.

(2)
In order for us to cover our annual interest payments on indebtedness, we must achieve annual returns on our March 31, 2012 total assets of at least 1.9%.

        Our ability to achieve our investment objective may depend in part on our ability to access additional leverage on favorable terms by issuing debentures guaranteed by the SBA, through the Funds, or by borrowing from banks or insurance companies, and there can be no assurance that such additional leverage can in fact be achieved.

We may experience fluctuations in our quarterly results.

        We could experience fluctuations in our quarterly operating results due to a number of factors, including our ability or inability to make investments in companies that meet our investment criteria, the interest rate payable on the debt securities we acquire, the level of portfolio dividend and fee income, the level of our expenses, variations in and the timing of the recognition of realized and unrealized gains or losses, the degree to which we encounter competition in our markets and general economic conditions. As a result of these factors, results for any period should not be relied upon as being indicative of performance in future periods.

Our Board of Directors may change our operating policies and strategies without prior notice or stockholder approval, the effects of which may be adverse.

        Our Board of Directors has the authority to modify or waive our current operating policies, investment criteria and strategies without prior notice and without stockholder approval. We cannot predict the effect any changes to our current operating policies, investment criteria and strategies would have on our business, net asset value, operating results and value of our stock. However, the effects might be adverse, which could negatively impact our ability to pay you dividends and cause you to lose all or part of your investment.

We will be subject to corporate-level income tax if we are unable to qualify as a RIC under Subchapter M of the Code.

        To maintain RIC tax treatment under the Code, we must meet the following annual distribution, income source and asset diversification requirements:

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        Failure to meet these requirements may result in our having to dispose of certain investments quickly in order to prevent the loss of RIC status. Because most of our investments will be in private companies, and therefore will be illiquid, any such dispositions could be made at disadvantageous prices and could result in substantial losses. Moreover, if we fail to maintain RIC tax treatment for any reason and are subject to corporate income tax, the resulting corporate taxes could substantially reduce our net assets, the amount of income available for distribution and the amount of our distributions.

We may not be able to pay you distributions, our distributions may not grow over time, and a portion of distributions paid to you may be a return of capital.

        We intend to pay monthly distributions to our stockholders out of assets legally available for distribution. We cannot assure you that we will achieve investment results that will allow us to pay a specified level of cash distributions, previously projected distributions for future periods, or year-to-year increases in cash distributions. Our ability to pay distributions might be adversely affected by, among other things, the impact of one or more of the risk factors described herein. In addition, the inability to satisfy the asset coverage test applicable to us as a BDC could limit our ability to pay distributions. All distributions will be paid at the discretion of our Board of Directors and will depend on our earnings, our financial condition, maintenance of our RIC status, compliance with applicable BDC regulations, each of the Funds' compliance with applicable SBIC regulations and such other factors as our Board of Directors may deem relevant from time to time. We cannot assure you that we will pay distributions to our stockholders in the future.

        When we make monthly distributions, we will be required to determine the extent to which such distributions are paid out of current or accumulated earnings, recognized capital gains or capital. To the extent there is a return of capital, investors will be required to reduce their basis in our stock for federal tax purposes, which will result in higher tax liability when the shares are sold, even if they have not increased in value or have lost value. In addition, any return of capital will be net of any sales load and offering expenses associated with sales of shares of our common stock. In the future, our distributions may include a return of capital.

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We may have difficulty paying our required distributions if we recognize income before or without receiving cash representing such income.

        We will include in income certain amounts that we have not yet received in cash, such as: (i) amortization of original issue discount, which may arise if we receive warrants in connection with the origination of a loan such that ascribing a value to the warrants creates original issue discount in the debt instrument or possibly in other circumstances; (ii) contractual payment-in-kind, or PIK, interest, which represents contractual interest added to the loan balance and due at the end of the loan term; (iii) contractual preferred dividends, which represents contractual dividends added to the preferred stock and due at the end of the preferred stock term; or (iv) amortization of market discount, which is associated with loans purchased in the secondary market at a discount to par value. Such amortization of original issue discounts, increases in loan balances as a result of contractual PIK arrangements, cumulative preferred dividends, or amortization of market discount will be included in income before we receive the corresponding cash payments. We also may be required to include in income certain other amounts before we receive such amounts in cash. Investments structured with these features may represent a higher level of credit risk compared to investments generating income which must be paid in cash on a current basis. For the three months ended March 31, 2012, (i) approximately 3.9% of our total investment income was attributable to PIK interest income, (ii) approximately 2.4% of our total investment income was attributable to amortization of original issue discount, (iii) approximately 2.0% of our total investment income was attributable to contractual preferred dividends, and (iv) approximately 0.1% of our total investment income was attributable to amortization of market discount on loans purchased in the secondary market at a discount.

        Since, in certain cases, we may recognize income before or without receiving cash representing such income, we may have difficulty meeting the annual distribution requirement necessary to maintain RIC tax treatment under the Code. Accordingly, we may have to sell some of our investments at times and/or at prices we would not consider advantageous, raise additional debt or equity capital or forgo new investment opportunities for this purpose. If we are not able to obtain cash from other sources, we may fail to qualify for RIC tax treatment and thus become subject to corporate-level income tax. For additional discussion regarding the tax implications of a RIC, please see "Material U.S. Federal Income Tax Considerations—Taxation as a Regulated Investment Company."

We may in the future choose to pay dividends in our own stock, in which case you may be required to pay tax in excess of the cash you receive.

        We may distribute taxable dividends that are payable in part in our stock. The IRS has issued private letter rulings providing that a dividend payable in stock or in cash at the election of the stockholders will be treated as a taxable dividend eligible for the dividends paid deduction provided that at least 20% of the total dividend is payable in cash and certain other requirements are satisfied. Taxable stockholders receiving such dividends will be required to include the full amount of the dividend as ordinary income (or as long-term capital gain to the extent such dividend is properly reported as a capital gain dividend) to the extent of our current and accumulated earnings and profits for United States federal income tax purposes. As a result, a U.S. stockholder may be required to pay tax with respect to such dividends in excess of any cash received. If a U.S. stockholder sells the stock it receives as a dividend in order to pay this tax, the sales proceeds may be less than the amount included in income with respect to the dividend, depending on the market price of our stock at the time of the sale. Furthermore, with respect to non-U.S. stockholders, we may be required to withhold U.S. tax with respect to such dividends, including in respect of all or a portion of such dividend that is payable in stock. In addition, if a significant number of our stockholders determine to sell shares of our stock in order to pay taxes owed on dividends, it may put downward pressure on the trading price of our stock.

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Each of the Funds, as an SBIC, may be unable to make distributions to us that will enable us to meet or maintain RIC status, which could result in the imposition of an entity-level tax.

        In order for us to continue to qualify for RIC tax treatment and to minimize corporate-level taxes, we will be required to distribute substantially all of our net ordinary income and net capital gain income, including income from certain of our subsidiaries, which includes the income from the Funds. We will be partially dependent on the Funds for cash distributions to enable us to meet the RIC distribution requirements. The Funds may be limited by the Small Business Investment Act of 1958, and SBIC regulations governing SBICs, from making certain distributions to us that may be necessary to enable us to maintain our status as a RIC. We may have to request a waiver of the SBA's restrictions for the Funds to make certain distributions to maintain our eligibility for RIC status. We cannot assure you that the SBA will grant such waiver and if the Funds are unable to obtain a waiver, compliance with the SBIC regulations may result in loss of RIC tax treatment and a consequent imposition of an entity-level tax on us.

Because we intend to distribute substantially all of our income to our stockholders to maintain our status as a RIC, we will continue to need additional capital to finance our growth, and regulations governing our operation as a BDC will affect our ability to, and the way in which we, raise additional capital and make distributions.

        In order to satisfy the requirements applicable to a RIC and to minimize corporate-level taxes, we intend to distribute to our stockholders substantially all of our net ordinary income and net capital gain income. We may carry forward excess undistributed taxable income into the next year, net of the 4% excise tax. Any such carryover taxable income must be distributed through a dividend declared prior to filing the final tax return related to the year which generated such taxable income. As a BDC, we generally are required to meet an asset coverage ratio, as defined in the 1940 Act, of at least 200% immediately after each issuance of senior securities. This requirement limits the amount that we may borrow and may prohibit us from making distributions. Because we will continue to need capital to grow our investment portfolio, this limitation may prevent us from incurring debt and require us to raise additional equity at a time when it may be disadvantageous to do so.

        While we expect to be able to borrow and to issue additional debt and equity securities, we cannot assure you that debt and equity financing will be available to us on favorable terms, or at all. In addition, as a BDC, we generally are not permitted to issue equity securities priced below net asset value without stockholder approval. If additional funds are not available to us, we could be forced to curtail or cease new investment activities, and our net asset value could decline.

Stockholders may incur dilution if we sell shares of our common stock in one or more offerings at prices below the then current net asset value per share of our common stock or issue securities to subscribe to, convert to or purchase shares of our common stock.

        The 1940 Act prohibits us from selling shares of our common stock at a price below the current net asset value per share of such stock, with certain exceptions. One such exception is prior stockholder approval of issuances below net asset value provided that our Board of Directors makes certain determinations. At our 2011 annual meeting of stockholders, our stockholders approved a proposal that authorizes us to sell shares of our common stock below the then current net asset value per share of our common stock in one or more offerings for a period of one year ending on June 14, 2012. Continued access to this exception will require approval of similar proposals at future stockholder meetings. We are seeking such approval for the next year at our 2012 annual stockholders meeting to be held on June 14, 2012. At our 2008 annual meeting of stockholders, our stockholders approved a proposal to authorize us to issue securities to subscribe to, convert to, or purchase shares of our common stock in one or more offerings. Any decision to sell shares of our common stock below the then current net asset value per share of our common stock or securities to subscribe to, convert to, or

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purchase shares of our common stock would be subject to the determination by our Board of Directors that such issuance is in our and our stockholders' best interests.

        If we were to sell shares of our common stock below net asset value per share, such sales would result in an immediate dilution to the net asset value per share. This dilution would occur as a result of the sale of shares at a price below the then current net asset value per share of our common stock and a proportionately greater decrease in a stockholder's interest in our earnings and assets and voting interest in us than the increase in our assets resulting from such issuance. In addition, if we issue securities to subscribe to, convert to or purchase shares of common stock, the exercise or conversion of such securities would increase the number of outstanding shares of our common stock. Any such exercise would be dilutive on the voting power of existing stockholders, and could be dilutive with regard to dividends and our net asset value, and other economic aspects of the common stock.

        Because the number of shares of common stock that could be so issued and the timing of any issuance is not currently known, the actual dilutive effect cannot be predicted; however, the example below illustrates the effect of dilution to existing stockholders resulting from the sale of common stock at prices below the net asset value of such shares. Please see "Sales of Common Stock Below Net Asset Value" for a more complete discussion of the potentially dilutive impacts of an offering at a price less than net asset value, or NAV, per share.

        Illustration: Example of Dilutive Effect of the Issuance of Shares Below Net Asset Value.    Assume that Company XYZ has 1,000,000 total shares outstanding, $15,000,000 in total assets and $5,000,000 in total liabilities. The net asset value per share of the common stock of Company XYZ is $10.00. The following table illustrates the reduction to net asset value, or NAV, and the dilution experienced by Stockholder A following the sale of 40,000 shares of the common stock of Company XYZ at $9.50 per share, a price below its NAV per share.

 
  Prior to Sale
Below NAV
  Following Sale
Below NAV
  Percentage
Change
 

Reduction to NAV

                   

Total Shares Outstanding

    1,000,000     1,040,000     4.0 %

NAV per share

  $ 10.00   $ 9.98     (0.2 )%

Dilution to Existing Stockholder

                   

Shares Held by Stockholder A

    10,000     10,000 (1)   0.0 %

Percentage Held by Stockholder A

    1.00 %   0.96 %   (3.8 )%

Total Interest of Stockholder A in NAV

  $ 100,000   $ 99,808     (0.2 )%

(1)
Assumes that Stockholder A does not purchase additional shares in the sale of shares below NAV.

Changes in laws or regulations governing our operations may adversely affect our business or cause us to alter our business strategy.

        We, the Funds, and our portfolio companies are subject to applicable local, state and federal laws and regulations, including, without limitation, federal immigration laws and regulations. New legislation may be enacted or new interpretations, rulings or regulations could be adopted, including those governing the types of investments we are permitted to make, any of which could harm us and our stockholders, potentially with retroactive effect. In addition, any change to the SBA's current debenture SBIC program could have a significant impact on our ability to obtain lower-cost leverage, through the Funds, and therefore, our ability to compete with other finance companies.

        Additionally, any changes to the laws and regulations governing our operations relating to permitted investments may cause us to alter our investment strategy in order to avail ourselves of new

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or different opportunities. Such changes could result in material differences to the strategies and plans set forth herein and may result in our investment focus shifting from the areas of expertise of our investment team to other types of investments in which our investment team may have less expertise or little or no experience. Thus, any such changes, if they occur, could have a material adverse effect on our results of operations and the value of your investment.

Terrorist attacks, acts of war or natural disasters may affect any market for our common stock, impact the businesses in which we invest and harm our business, operating results and financial condition.

        Terrorist acts, acts of war or natural disasters may disrupt our operations, as well as the operations of the businesses in which we invest. Such acts have created, and continue to create, economic and political uncertainties and have contributed to global economic instability. Future terrorist activities, military or security operations, or natural disasters could further weaken the domestic/global economies and create additional uncertainties, which may negatively impact the businesses in which we invest directly or indirectly and, in turn, could have a material adverse impact on our business, operating results and financial condition. Losses from terrorist attacks and natural disasters are generally uninsurable.

Risks Related to Our Investments

Our investments in portfolio companies involve higher levels of risk, and we could lose all or part of our investment.

        Investing in our portfolio companies involves a number of significant risks. Among other things, these companies:

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        In addition, in the course of providing significant managerial assistance to certain of our portfolio companies, certain of our officers and directors may serve as directors on the boards of such companies. To the extent that litigation arises out of our investments in these companies, our officers and directors may be named as defendants in such litigation, which could result in an expenditure of funds (through our indemnification of such officers and directors) and the diversion of management time and resources.

The lack of liquidity in our investments may adversely affect our business.

        We invest, and will continue to invest in companies whose securities are not publicly traded, and whose securities will be subject to legal and other restrictions on resale or will otherwise be less liquid than publicly traded securities. The illiquidity of these investments may make it difficult for us to sell these investments when desired. In addition, if we are required to liquidate all or a portion of our portfolio quickly, we may realize significantly less than the value at which we had previously recorded these investments. As a result, we do not expect to achieve liquidity in our investments in the near-term. Our investments are usually subject to contractual or legal restrictions on resale or are otherwise illiquid because there is usually no established trading market for such investments. The illiquidity of most of our investments may make it difficult for us to dispose of them at a favorable price, and, as a result, we may suffer losses.

We may not have the funds or ability to make additional investments in our portfolio companies.

        We may not have the funds or ability to make additional investments in our portfolio companies. After our initial investment in a portfolio company, we may be called upon from time to time to provide additional funds to such company or have the opportunity to increase our investment through the extension of additional loans, the exercise of a warrant to purchase common stock, or the funding of additional equity investments. There is no assurance that we will make, or will have sufficient funds to make, follow-on investments. Any decisions not to make a follow-on investment or any inability on our part to make such an investment may have a negative impact on a portfolio company in need of such an investment, may result in a missed opportunity for us to increase our participation in a successful operation or may reduce the expected yield on the investment.

Our portfolio companies may incur debt that ranks equally with, or senior to, our investments in such companies.

        We invest primarily in secured term debt as well as equity issued by LMM and middle market companies. Our portfolio companies may have, or may be permitted to incur, other debt that ranks equally with, or senior to, the debt in which we invest. By their terms, such debt instruments may entitle the holders to receive payment of interest or principal on or before the dates on which we are entitled to receive payments with respect to the debt instruments in which we invest. Also, in the event of insolvency, liquidation, dissolution, reorganization or bankruptcy of a portfolio company, holders of debt instruments ranking senior to our investment in that portfolio company would typically be entitled to receive payment in full before we receive any distribution. After repaying such senior creditors, such portfolio company may not have any remaining assets to use for repaying its obligation to us. In the case of debt ranking equally with debt instruments in which we invest, we would have to share on an equal basis any distributions with other creditors holding such debt in the event of an insolvency, liquidation, dissolution, reorganization or bankruptcy of the relevant portfolio company.

There may be circumstances where our debt investments could be subordinated to claims of other creditors or we could be subject to lender liability claims.

        Even though we may have structured certain of our investments as secured loans, if one of our portfolio companies were to go bankrupt, depending on the facts and circumstances, and based upon

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principles of equitable subordination as defined by existing case law, a bankruptcy court could subordinate all or a portion of our claim to that of other creditors and transfer any lien securing such subordinated claim to the bankruptcy estate. The principles of equitable subordination defined by case law have generally indicated that a claim may be subordinated only if its holder is guilty of misconduct or where the senior loan is re-characterized as an equity investment and the senior lender has actually provided significant managerial assistance to the bankrupt debtor. We may also be subject to lender liability claims for actions taken by us with respect to a borrower's business or instances where we exercise control over the borrower. It is possible that we could become subject to a lender's liability claim, including as a result of actions taken in rendering significant managerial assistance or actions to compel and collect payments from the borrower outside the ordinary course of business.

Second priority liens on collateral securing loans that we make to our portfolio companies may be subject to control by senior creditors with first priority liens. If there is a default, the value of the collateral may not be sufficient to repay in full both the first priority creditors and us.

        Certain loans that we make are secured by a second priority security interest in the same collateral pledged by a portfolio company to secure senior debt owed by the portfolio company to commercial banks or other traditional lenders. Often the senior lender has procured covenants from the portfolio company prohibiting the incurrence of additional secured debt without the senior lender's consent. Prior to and as a condition of permitting the portfolio company to borrow money from us secured by the same collateral pledged to the senior lender, the senior lender will require assurances that it will control the disposition of any collateral in the event of bankruptcy or other default. In many such cases, the senior lender will require us to enter into an "intercreditor agreement" prior to permitting the portfolio company to borrow from us. Typically the intercreditor agreements we are requested to execute expressly subordinate our debt instruments to those held by the senior lender and further provide that the senior lender shall control: (1) the commencement of foreclosure or other proceedings to liquidate and collect on the collateral; (2) the nature, timing and conduct of foreclosure or other collection proceedings; (3) the amendment of any collateral document; (4) the release of the security interests in respect of any collateral; and (5) the waiver of defaults under any security agreement. Because of the control we may cede to senior lenders under intercreditor agreements we may enter, we may be unable to realize the proceeds of any collateral securing some of our loans.

        Finally, the value of the collateral securing our debt investment will ultimately depend on market and economic conditions, the availability of buyers and other factors. Therefore, there can be no assurance that the proceeds, if any, from the sale or sales of all of the collateral would be sufficient to satisfy the loan obligations secured by our first or second priority liens. There is also a risk that such collateral securing our investments will decrease in value over time, will be difficult to sell in a timely manner, will be difficult to appraise and will fluctuate in value based upon the success of the portfolio company and market conditions. If such proceeds are not sufficient to repay amounts outstanding under the loan obligations secured by our second priority liens, then we, to the extent not repaid from the proceeds of the sale of the collateral, will only have an unsecured claim against the company's remaining assets, if any.

We are a non-diversified investment company within the meaning of the 1940 Act, and therefore we are not limited with respect to the proportion of our assets that may be invested in securities of a single issuer.

        We are classified as a non-diversified investment company within the meaning of the 1940 Act, which means that we are not limited by the 1940 Act with respect to the proportion of our assets that we may invest in securities of a single issuer. To the extent that we assume large positions in the securities of a small number of issuers, our net asset value may fluctuate to a greater extent than that of a diversified investment company as a result of changes in the financial condition or the market's assessment of the issuer. We may also be more susceptible to any single economic or regulatory

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occurrence than a diversified investment company. Beyond our RIC asset diversification requirements, we do not have fixed guidelines for diversification, and our investments could be concentrated in relatively few portfolio companies.

We generally will not control our portfolio companies.

        We do not, and do not expect to, control the decision making in many of our portfolio companies, even though we may have board representation or board observation rights, and our debt agreements may contain certain restrictive covenants. As a result, we are subject to the risk that a portfolio company in which we invest will make business decisions with which we disagree and the management of such company, as representatives of the holders of their common equity, will take risks or otherwise act in ways that do not serve our interests as debt investors. Due to the lack of liquidity for our investments in non-traded companies, we may not be able to dispose of our interests in our portfolio companies as readily as we would like or at an appropriate valuation. As a result, a portfolio company may make decisions that would decrease the value of our portfolio holdings.

Defaults by our portfolio companies will harm our operating results.

        A portfolio company's failure to satisfy financial or operating covenants imposed by us or other lenders could lead to non-payment of interest and other defaults and, potentially, termination of its loans and foreclosure on its secured assets, which could trigger cross-defaults under other agreements and jeopardize a portfolio company's ability to meet its obligations under the debt or equity securities that we hold. We may incur expenses to the extent necessary to seek recovery upon default or to negotiate new terms, which may include the waiver of certain financial covenants, with a defaulting portfolio company.

Any unrealized depreciation we experience on our loan portfolio may be an indication of future realized losses, which could reduce our income available for distribution.

        As a BDC, we are required to carry our investments at market value or, if no market value is ascertainable, at the fair value as determined in good faith by our Board of Directors. Decreases in the market values or fair values of our investments will be recorded as unrealized depreciation. Any unrealized depreciation in our loan portfolio could be an indication of a portfolio company's inability to meet its repayment obligations to us with respect to the affected loans. This could result in realized losses in the future and ultimately in reductions of our income available for distribution in future periods.

Prepayments of our debt investments by our portfolio companies could adversely impact our results of operations and reduce our return on equity.

        We are subject to the risk that the investments we make in our portfolio companies may be repaid prior to maturity. When this occurs, we will generally reinvest these proceeds in temporary investments, pending their future investment in new portfolio companies. These temporary investments will typically have substantially lower yields than the debt being prepaid and we could experience significant delays in reinvesting these amounts. Any future investment in a new portfolio company may also be at lower yields than the debt that was repaid. As a result, our results of operations could be materially adversely affected if one or more of our portfolio companies elect to prepay amounts owed to us. Additionally, prepayments could negatively impact our return on equity, which could result in a decline in the market price of our common stock.

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Changes in interest rates may affect our cost of capital and net investment income.

        Some of our debt investments will bear interest at variable rates and the interest income from these investments could be negatively affected by decreases in market interest rates. In addition, an increase in interest rates would make it more expensive for us to use debt to finance our investments. As a result, a significant increase in market interest rates could increase our cost of capital, which would reduce our net investment income. Also, an increase in interest rates available to investors could make an investment in our common stock less attractive if we are not able to increase our dividend rate, a situation which could reduce the value of our common stock. Conversely, a decrease in interest rates may have an adverse impact on our returns by requiring us to seek lower yields on our debt investments and by increasing the risk that our portfolio companies will prepay our debt investments, resulting in the need to redeploy capital at potentially lower rates. A decrease in market interest rates may also adversely impact our returns on idle funds, which would reduce our net investment income.

We may not realize gains from our equity investments.

        Certain investments that we have made in the past and may make in the future include warrants or other equity securities. Investments in equity securities involve a number of significant risks, including the risk of further dilution as a result of additional issuances, inability to access additional capital and failure to pay current distributions. Investments in preferred securities involve special risks, such as the risk of deferred distributions, credit risk, illiquidity and limited voting rights. In addition, we may from time to time make non-control, equity investments in portfolio companies. Our goal is ultimately to realize gains upon our disposition of such equity interests. However, the equity interests we receive may not appreciate in value and, in fact, may decline in value. Accordingly, we may not be able to realize gains from our equity interests, and any gains that we do realize on the disposition of any equity interests may not be sufficient to offset any other losses we experience. We also may be unable to realize any value if a portfolio company does not have a liquidity event, such as a sale of the business, recapitalization or public offering, which would allow us to sell the underlying equity interests. We often seek puts or similar rights to give us the right to sell our equity securities back to the portfolio company issuer; however, we may be unable to exercise these puts rights for the consideration provided in our investment documents if the issuer is in financial distress.

Our marketable securities and idle funds investments are subject to risks similar to our portfolio company investments.

        Marketable securities and idle funds investments can include, among other things, secured and unsecured debt investments, independently rated debt investments and diversified bond funds. Many of these investments in debt obligations are, or would be if rated, below investment grade quality. Indebtedness of below investment grade quality is regarded as having predominantly speculative characteristics with respect to the issuer's capacity to pay interest and repay principal, similar to our portfolio investments in our portfolio companies. See "—Our investments in portfolio companies involve higher levels of risk, and we could lose all or part of our investment." Many of these marketable securities and idle funds investments are purchased through over the counter or other markets and are therefore liquid at the time of purchase but may subsequently become illiquid due to events relating to the issuer of the securities, market events, economic conditions or investor perceptions. See "—The lack of liquidity in our investments may adversely affect our business" for a description of risks related to holding illiquid investments. In addition, domestic and foreign markets are complex and interrelated, so that events in one sector of the world markets or economy, or in one geographical region, can reverberate and have materially negative consequences for other market, economic or regional sectors in a manner that may not be foreseen and which may materially affect the market price of our marketable securities and idle funds investments. Other risks that our portfolio investments are subject to are also applicable to these marketable securities and idle funds investments.

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Risks Relating to Our Common Stock

Shares of closed-end investment companies, including BDCs, may trade at a discount to their net asset value.

        Shares of closed-end investment companies, including BDCs, may trade at a discount to net asset value. This characteristic of closed-end investment companies and BDCs is separate and distinct from the risk that our net asset value per share may decline. We cannot predict whether our common stock will trade at, above or below net asset value. In addition, if our common stock trades below net asset value, we will generally not be able to issue additional common stock at the market price unless our stockholders approve such a sale and our Board of Directors makes certain determinations. See "—Risks Relating to Our Business and Structure—Stockholders may incur dilution if we sell shares of our common stock in one or more offerings at prices below the then current net asset value per share of our common stock or issue securities to subscribe to, convert to or purchase shares of our common stock" for a discussion of a proposal approved by our stockholders that permits us to issue shares of our common stock below net asset value.

We may be unable to invest a significant portion of the net proceeds from an offering or from exiting an investment or other capital on acceptable terms, which could harm our financial condition and operating results.

        Delays in investing the net proceeds raised in an offering or from exiting an investment or other capital may cause our performance to be worse than that of other fully invested BDCs or other lenders or investors pursuing comparable investment strategies. We cannot assure you that we will be able to identify any investments that meet our investment objective or that any investment that we make will produce a positive return. We may be unable to invest the net proceeds of any offering or from exiting an investment or other capital on acceptable terms within the time period that we anticipate or at all, which could harm our financial condition and operating results.

        We anticipate that, depending on market conditions and the amount of the capital, it may take us a substantial period of time to invest substantially all the capital in securities meeting our investment objective. During this period, we will invest the capital primarily in marketable securities and idle funds investments, which may produce returns that are significantly lower than the returns which we expect to achieve when our portfolio is fully invested in securities meeting our investment objective. As a result, any distributions that we pay during such period may be substantially lower than the distributions that we may be able to pay when our portfolio is fully invested in securities meeting our investment objective. In addition, until such time as the net proceeds of any offering or from exiting an investment or other capital are invested in securities meeting our investment objective, the market price for our common stock may decline. Thus, the initial return on your investment may be lower than when, if ever, our portfolio is fully invested in securities meeting our investment objective.

Investing in our common stock may involve an above average degree of risk.

        The investments we make in accordance with our investment objective may result in a higher amount of risk than alternative investment options and a higher risk of volatility or loss of principal. Our investments in portfolio companies involve higher levels of risk, and therefore, an investment in our shares may not be suitable for someone with lower risk tolerance.

The market price of our common stock may be volatile and fluctuate significantly.

        Fluctuations in the trading prices of our shares may adversely affect the liquidity of the trading market for our shares and, if we seek to raise capital through future equity financings, our ability to raise such equity capital. The market price and liquidity of the market for our common stock may be

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significantly affected by numerous factors, some of which are beyond our control and may not be directly related to our operating performance. These factors include:

Provisions of the Maryland General Corporation Law and our articles of incorporation and bylaws could deter takeover attempts and have an adverse impact on the price of our common stock.

        The Maryland General Corporation Law and our articles of incorporation and bylaws contain provisions that may have the effect of discouraging, delaying or making difficult a change in control of our company or the removal of our incumbent directors. The existence of these provisions, among others, may have a negative impact on the price of our common stock and may discourage third-party bids for ownership of our company. These provisions may prevent any premiums being offered to you for our common stock.

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CAUTIONARY STATEMENT CONCERNING FORWARD-LOOKING STATEMENTS

        Some of the statements in this prospectus and any accompanying prospectus supplement constitute forward-looking statements because they relate to future events or our future performance or financial condition. The forward-looking statements contained in this prospectus and any accompanying prospectus supplement may include statements as to:

        In addition, words such as "anticipate," "believe," "expect" and "intend" indicate a forward-looking statement, although not all forward-looking statements include these words. The forward-looking statements contained in this prospectus and any accompanying prospectus supplement involve risks and uncertainties. Our actual results could differ materially from those implied or expressed in the forward-looking statements for any reason, including the factors set forth in "Risk Factors" and elsewhere in this prospectus and any accompanying prospectus supplement. Other factors that could cause actual results to differ materially include:

        We have based the forward-looking statements included in this prospectus and will base the forward-looking statements included in any accompanying prospectus supplement on information available to us on the date of this prospectus and any accompanying prospectus supplement, as appropriate, and we assume no obligation to update any such forward-looking statements, except as required by law. Although we undertake no obligation to revise or update any forward-looking statements, whether as a result of new information, future events or otherwise, you are advised to consult any additional disclosures that we may make directly to you, including in the form of a prospectus supplement or post-effective amendment to the registration statement, or through reports that we in the future may file with the SEC, including annual reports on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K.

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USE OF PROCEEDS

        We intend to use the net proceeds from any offering to make investments in accordance with our investment objective and strategies described in this prospectus or any prospectus supplement, to make investments in marketable securities and idle funds investments, which may include investments in secured intermediate term bank debt, rated debt securities and other income producing investments, to pay our operating expenses and other cash obligations, and for general corporate purposes. Our ability to achieve our investment objective may be limited to the extent that the net proceeds from an offering, pending full investment, are held in interest-bearing deposits or other short-term instruments. See "Risk Factors—Risks Relating to Our Common Stock—We may be unable to invest a significant portion of the net proceeds from an offering or from exiting an investment or other capital on acceptable terms, which could harm our financial condition and operating results." The supplement to this prospectus relating to an offering will more fully identify the use of proceeds from such an offering.


PRICE RANGE OF COMMON STOCK AND DISTRIBUTIONS

        Our common stock is traded on the New York Stock Exchange ("NYSE") under the symbol "MAIN." Prior to October 14, 2010, our common stock was traded on the NASDAQ Global Select Market under the same symbol "MAIN." Our common stock began trading on the NASDAQ Global Select Market on October 5, 2007. Prior to that date, there was no established public trading market for our common stock.

        The following table sets forth, for each fiscal quarter since our common stock began trading, the range of high and low closing prices of our common stock as reported on the NYSE and on the

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NASDAQ Global Select Market, as applicable, and the sales price as a percentage of the net asset value per share of our common stock ("NAV").

 
   
  Price Range   Percentage of
High Sales
Price to
NAV(2)
  Percentage of
Low Sales
Price to
NAV(2)
 
 
  NAV(1)   High   Low  

Year ending December 31, 2012

                               

Second Quarter (to May 22, 2012)

      * $ 26.68   $ 22.04       *     *

First Quarter

  $ 15.72   $ 25.61   $ 21.18     163 %   135 %

Year ended December 31, 2011

                               

Fourth Quarter

  $ 15.19   $ 21.24   $ 17.03     140 %   112 %

Third Quarter

    14.49     19.39     15.98     134     110  

Second Quarter

    14.24     19.03     17.99     134     126  

First Quarter

    13.90     19.71     17.86     142     128  

Year ended December 31, 2010

                               

Fourth Quarter

  $ 13.06   $ 18.19   $ 16.01     139 %   123 %

Third Quarter

    12.73     16.90     14.78     133     116  

Second Quarter

    12.21     16.90     13.71     138     112  

First Quarter

    11.95     16.14     13.95     135     117  

Year ended December 31, 2009

                               

Fourth Quarter

  $ 11.96   $ 16.35   $ 13.29     137 %   111 %

Third Quarter

    12.01     14.25     13.03     119     108  

Second Quarter

    11.80     14.74     9.66     125     82  

First Quarter

    11.84     10.43     9.07     88     77  

Year ended December 31, 2008

                               

Fourth Quarter

  $ 12.20   $ 11.95   $ 8.82     98 %   72 %

Third Quarter

    12.49     14.40     11.38     115     91  

Second Quarter

    13.02     14.40     10.90     111     84  

First Quarter

    12.87     14.10     12.75     110     99  

Year ended December 31, 2007

                               

October 5, 2007 to December 31, 2007(3)

  $ 12.85   $ 15.02   $ 13.60     117 %   106 %

(1)
Net asset value per share, or NAV, is determined as of the last day in the relevant quarter and therefore may not reflect the net asset value per share on the date of the high and low sales prices. The net asset values shown are based on outstanding shares at the end of each period. Net asset value has not yet been determined for the second quarter of 2012.

(2)
Calculated as the respective high or low share price divided by NAV for such quarter.

(3)
Our stock began trading on October 5, 2007.

        On May 22, 2012, the last sale price of our common stock on the NYSE was $23.38 per share, and there were approximately 205 holders of record of the common stock which did not include shareholders for whom shares are held in "nominee" or "street name."

        Shares of BDCs may trade at a market price that is less than the value of the net assets attributable to those shares. The possibility that our shares of common stock will trade at a discount from net asset value per share or at premiums that are unsustainable over the long term are separate and distinct from the risk that our net asset value per share will decrease. It is not possible to predict whether our common stock will trade at, above, or below net asset value per share. Since our IPO in October 2007, our shares of common stock have traded at prices both less than and exceeding our net asset value per share.

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        From our IPO through the third quarter of 2008, we paid quarterly dividends, but in the fourth quarter of 2008 we began paying, and we intend to continue paying, monthly dividends to our stockholders. Our monthly dividends, if any, will be determined by our Board of Directors on a quarterly basis.

        The following table summarizes our dividends declared to date:

Date Declared
  Record Date   Payment Date   Amount(1)  

Fiscal year 2012

               

May 1, 2012

  August 21, 2012   September 14, 2012   $ 0.145  

May 1, 2012

  July 20, 2012   August 15, 2012   $ 0.145  

May 1, 2012

  June 21, 2012   July 16, 2012   $ 0.145  

March 6, 2012

  May 21, 2012   June 15, 2012   $ 0.140  

March 6, 2012

  April 20, 2012   May 15, 2012   $ 0.140  

March 6, 2012

  March 21, 2012   April 16, 2012   $ 0.140  

December 8, 2011

  February 22, 2012   March 15, 2012   $ 0.135  

December 8, 2011

  January 18, 2012   February 15, 2012   $ 0.135  

December 8, 2011

  December 21, 2011   January 16, 2012   $ 0.135 (2)
               

Total

          $ 1.260  
               

Fiscal year 2011

               

August 4, 2011

  November 21, 2011   December 15, 2011   $ 0.135 (2)

August 4, 2011

  October 20, 2011   November 15, 2011   $ 0.135 (2)

August 4, 2011

  September 21, 2011   October 14, 2011   $ 0.135 (2)

June 7, 2011

  June 22, 2011   July 15, 2011   $ 0.130 (2)

June 7, 2011

  July 21, 2011   August 15, 2011   $ 0.130 (2)

June 7, 2011

  August 19, 2011   September 15, 2011   $ 0.130 (2)

March 9, 2011

  March 24, 2011   April 15, 2011   $ 0.130 (2)

March 9, 2011

  April 21, 2011   May 16, 2011   $ 0.130 (2)

March 9, 2011

  May 20, 2011   June 15, 2011   $ 0.130 (2)

December 9, 2010

  February 22, 2011   March 15, 2011   $ 0.125 (2)

December 9, 2010

  January 20, 2011   February 15, 2011   $ 0.125 (2)

December 9, 2010

  January 6, 2011   January 14, 2011   $ 0.125 (2)
               

Total

          $ 1.560  
               

Fiscal year 2010

               

September 8, 2010

  November 19, 2010   December 15, 2010   $ 0.125 (3)

September 8, 2010

  October 21, 2010   November 15, 2010   $ 0.125 (3)

September 8, 2010

  September 23, 2010   October 15, 2010   $ 0.125 (3)

June 3, 2010

  August 20, 2010   September 15, 2010   $ 0.125 (3)

June 3, 2010

  July 21, 2010   August 16, 2010   $ 0.125 (3)

June 3, 2010

  June 21, 2010   July 15, 2010   $ 0.125 (3)

March 9, 2010

  May 20, 2010   June 15, 2010   $ 0.125 (3)

March 9, 2010

  April 21, 2010   May 14, 2010   $ 0.125 (3)

March 9, 2010

  March 25, 2010   April 15, 2010   $ 0.125 (3)

December 8, 2009

  February 22, 2010   March 15, 2010   $ 0.125 (3)

December 8, 2009

  January 21, 2010   February 16, 2010   $ 0.125 (3)

December 8, 2009

  January 6, 2010   January 15, 2010   $ 0.125 (3)
               

Total

          $ 1.500  
               

Fiscal year 2009

               

Total

          $ 1.500 (4)(5)
               

Fiscal year 2008

               

Total

          $ 1.425 (5)
               

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Date Declared
  Record Date   Payment Date   Amount(1)  

Fiscal year 2007

               

Total

          $ 0.330 (6)
               

Cumulative dividends declared or paid

          $ 7.575  
               

(1)
The determination of the tax attributes of Main Street's distributions is made annually, based upon its taxable income for the full year and distributions paid for the full year. Ordinary dividend distributions from a RIC do not qualify for the 15% maximum tax rate on dividend income from domestic corporations and qualified foreign corporations, except to the extent that the RIC received the income in the form of qualifying dividends from domestic corporations and qualified foreign corporations.

(2)
These dividends attributable to fiscal year 2011 for tax purposes were comprised of ordinary income of $1.25 per share, long term capital gain of $0.37 per share, and qualified dividend income of $0.07 per share and included dividends declared during fiscal year 2011 and the dividend declared and accrued as of December 31, 2011 and paid on January 16, 2012, pursuant to the Code.

(3)
These dividends attributable to fiscal year 2010 for tax purposes were comprised of ordinary income of $1.22 per share, long term capital gain of $0.27 per share, and qualified dividend income of $0.01 per share.

(4)
These dividends attributable to fiscal year 2009 for tax purposes were comprised of ordinary income of $1.22 per share and long term capital gain of $0.16 per share.

(5)
These dividends attributable to fiscal year 2008 for tax purposes were comprised of ordinary income of $0.95 per share and long term capital gain of $0.60 per share and included dividends declared during fiscal year 2008 and the dividend declared and accrued as of December 31, 2008 and paid on January 15, 2009, pursuant to the Code.

(6)
This quarterly dividend attributable to fiscal year 2007 was comprised of ordinary income of $0.105 per share and long term capital gain of $0.225 per share.

        To obtain and maintain RIC tax treatment, we must, among other things, distribute at least 90% of our net ordinary income and realized net short-term capital gains in excess of realized net long-term capital losses, if any. We will be subject to a 4% nondeductible federal excise tax on certain undistributed taxable income unless we distribute in a timely manner an amount at least equal to the sum of (1) 98% of our net ordinary income for each calendar year, (2) 98.2% of our capital gain net income for the one-year period ending December 31 in that calendar year and (3) any income recognized, but not distributed, in preceding years (the "Excise Tax Avoidance Requirement"). Dividends declared and paid by us in a year will generally differ from taxable income for that year, as such dividends may include the distribution of current year taxable income, less amounts carried over into the following year, and the distribution of prior year taxable income carried over into and distributed in the current year. For amounts we carry over into the following year, we will be required to pay a 4% excise tax for the excess over 98% of our annual taxable income in excess of distributions for the year. We may retain for investment some or all of our net capital gains (i.e., realized net long-term capital gains in excess of realized net short-term capital losses) and treat such amounts as deemed distributions to our stockholders. If we do this, our stockholders will be treated as if they had received actual distributions of the capital gains we retained and then reinvested the net after-tax proceeds in our common stock. In general, our stockholders also would be eligible to claim a tax credit (or, in certain circumstances, a tax refund) equal to their allocable shares of the tax we paid on the capital gains deemed distributed to them. We can offer no assurance that we will achieve results that will permit the payment of any cash distributions and, if we issue senior securities, we may be prohibited from making distributions if doing so causes us to fail to maintain the asset coverage ratios stipulated by the 1940 Act or if distributions are limited by the terms of any of our borrowings.

        We may distribute taxable dividends that are payable in cash or shares of our common stock at the election of each stockholder. Under certain applicable provisions of the Code and the Treasury regulations, distributions payable in cash or in shares of stock at the election of stockholders are treated as taxable dividends. The Internal Revenue Service has issued private rulings indicating that this

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rule will apply even where the total amount of cash that may be distributed is limited to no more than 20% of the total distribution. Under these rulings, if too many stockholders elect to receive their distributions in cash, each such stockholder would receive a pro rata share of the total cash to be distributed and would receive the remainder of their distribution in shares of stock. If we decide to make any distributions consistent with these rulings that are payable in part in our stock, taxable stockholders receiving such dividends will be required to include the full amount of the dividend (whether received in cash, our stock, or a combination thereof) as ordinary income (or as long-term capital gain to the extent such distribution is properly reported as a capital gain dividend) to the extent of our current and accumulated earnings and profits for United States federal income tax purposes. As a result, a U.S. stockholder may be required to pay tax with respect to such dividends in excess of any cash received. If a U.S. stockholder sells the stock it receives in order to pay this tax, the sales proceeds may be less than the amount included in income with respect to the dividend, depending on the market price of our stock at the time of the sale. Furthermore, with respect to non-U.S. stockholders, we may be required to withhold U.S. tax with respect to such dividends, including in respect of all or a portion of such dividend that is payable in stock. In addition, if a significant number of our stockholders determine to sell shares of our stock in order to pay taxes owed on dividends, it may put downward pressure on the trading price of our stock.

        Where the IRS revenue procedure is not currently applicable, the IRS has also issued private letter rulings on cash and stock dividends paid by RICs and real estate investment trusts using a 20% cash standard (and, more recently, the 10% cash standard of the above referenced IRS revenue procedure) if certain requirements are satisfied.

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SELECTED FINANCIAL DATA

        The selected financial and other data below reflects the consolidated operations of Main Street and its subsidiaries for the years ended December 31, 2007, 2008, 2009, 2010, and 2011 and for the three months ended March 31, 2011 and 2012. The selected financial data at December 31, 2007, 2008, 2009, 2010, and 2011 and for the years ended December 31, 2007, 2008, 2009, 2010, and 2011, have been derived from consolidated financial statements that have been audited by Grant Thornton LLP, an independent registered public accounting firm. The selected financial data at March 31, 2012, and for the three months ended March 31, 2011 and 2012, have been derived from unaudited financial data but, in the opinion of management, reflect all adjustments (consisting only of normal recurring adjustments) that are necessary to present fairly the financial condition and operating results for such interim periods. Interim results as of and for the three months ended March 31, 2012 are not necessarily indicative of the results that may be expected for the year ending December 31, 2012. You should read this selected financial data in conjunction with our "Management's Discussion and Analysis of Financial Condition and Results of Operations," "Senior Securities" and the financial statements and related notes included in this prospectus.

 
  Three Months Ended March 31,   Years Ended December 31,  
 
  2012   2011   2011   2010   2009   2008   2007  
 
  (dollars in thousands)
 
 
  (Unaudited)
   
   
   
   
   
 

Statement of operations data:

                                           

Investment income:

                                           

Total interest, fee and dividend income(1)

  $ 19,587   $ 13,322   $ 65,045   $ 35,645   $ 14,514   $ 16,123   $ 11,312  

Interest from idle funds and other(1)

    972     52     1,195     863     1,488     1,172     1,163  
                               

Total investment income

    20,559     13,374     66,240     36,508     16,002     17,295     12,475  
                               

Expenses:

                                           

Interest

    (3,864 )   (2,902 )   (13,518 )   (9,058 )   (3,791 )   (3,778 )   (3,246 )

General and administrative

    (608 )   (507 )   (2,483 )   (1,437 )   (1,351 )   (1,684 )   (512 )

Expenses reimbursed to Investment Manager

    (2,657 )   (2,130 )   (8,915 )   (5,263 )   (570 )   (1,007 )    

Share-based compensation

    (581 )   (443 )   (2,047 )   (1,489 )   (1,068 )   (511 )    

Management fees to affiliate

                            (1,500 )

Professional costs related to initial public offering

                            (695 )
                               

Total expenses

    (7,710 )   (5,982 )   (26,963 )   (17,247 )   (6,780 )   (6,980 )   (5,953 )
                               

Net investment income

    12,849     7,392     39,277     19,261     9,222     10,315     6,522  

Total net realized gain (loss) from investments

    8,138         2,639     (2,880 )   (7,798 )   1,398     4,692  
                               

Net realized income

    20,987     7,392     41,916     16,381     1,424     11,713     11,214  

Total net change in unrealized appreciation (depreciation) from investments

    4,728     4,131     28,478     19,639     8,242     (3,961 )   (5,406 )

Income tax benefit (provision)

    (1,876 )   (1,200 )   (6,288 )   (941 )   2,290     3,182     (3,263 )

Bargain purchase gain

                4,891              
                               

Net increase in net assets resulting from operations

    23,839     10,323     64,106     39,970     11,956     10,934     2,545  

Noncontrolling interest

    (54 )       (1,139 )   (1,226 )            
                               

Net increase in net assets resulting from operations attributable to common stock

  $ 23,785   $ 10,323   $ 62,967   $ 38,744   $ 11,956   $ 10,934   $ 2,545  
                               

Net investment income per share—basic and diluted

  $ 0.48   $ 0.38   $ 1.69   $ 1.16   $ 0.92   $ 1.13   $ 0.76  

Net realized income per share—basic and diluted

  $ 0.78   $ 0.38   $ 1.80   $ 0.99   $ 0.14   $ 1.29   $ 1.31  

Net increase in net assets resulting from operations attributable to common stock per share—basic and diluted

  $ 0.89   $ 0.54   $ 2.76   $ 2.38   $ 1.19   $ 1.20   $ 0.30  

Weighted average shares outstanding—basic and diluted

    26,871,084     19,217,690     22,850,299     16,292,846     10,042,639     9,095,904     8,587,701  

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  As of March 31,   As of December 31,  
 
  2012   2011   2010   2009   2008   2007  
 
  (dollars in thousands)
   
 
 
  (Unaudited)
   
   
   
   
   
 

Balance sheet data:

                                     

Assets:

                                     

Total portfolio investments at fair value(1)

  $ 664,299   $ 658,093   $ 407,987   $ 159,154   $ 127,007   $ 105,650  

Marketable securities and idle funds investments(1)

    14,345     26,242     9,577     839     4,390     24,063  

Cash and cash equivalents

    88,955     42,650     22,334     30,620     35,375     41,889  

Deferred tax asset, net

            1,958     2,716     1,121      

Interest receivable and other assets

    7,899     6,539     4,524     1,510     1,101     1,576  

Deferred financing costs, net of accumulated amortization

    3,945     4,168     2,544     1,611     1,635     1,670  
                           

Total assets

  $ 779,443   $ 737,692   $ 448,924   $ 196,450   $ 170,629   $ 174,848  
                           

Liabilities and net assets:

                                     

SBIC debentures at fair value

  $ 201,586   $ 201,887   $ 155,558   $ 65,000   $ 55,000   $ 55,000  

Credit facility

    138,000     107,000     39,000              

Deferred tax liability, net

    4,825     3,776                 3,026  

Interest payable

    1,326     3,984     3,195     1,069     1,108     1,063  

Dividend payable

    3,789     2,856             726      

Accounts payable and other liabilities

    4,381     7,001     1,188     721     1,439     610  
                           

Total liabilities

    353,907     326,504     198,941     66,790     58,273     59,699  

Total net asset value

    425,536     405,711     245,535     129,660     112,356     115,149  

Noncontrolling interest

        5,477     4,448              
                           

Total liabilities and net assets

  $ 779,443   $ 737,692   $ 448,924   $ 196,450   $ 170,629   $ 174,848  
                           

Other data:

                                     

Weighted average effective yield on LMM debt investments(2)

    14.9 %   14.8 %   14.5 %   14.3 %   14.0 %   14.3 %

Number of LMM portfolio companies(3)

    53     54     44     35     31     27  

Weighted average effective yield on Middle Market debt investments(2)

    9.2 %   9.5 %   10.5 %   11.8 %   N/A     N/A  

Number of Middle Market portfolio companies

    62     57     32     6     N/A     N/A  

Expense ratios (as percentage of average net assets):

                                     

Total expenses, including income tax expense(4)

    2.3% (5)(6)   9.8% (5)   8.8% (5)   5.6 %   6.1 %   16.2% (4)

Operating expenses(4)

    1.9% (5)(6)   8.0% (5)   8.3% (5)   5.6 %   6.1 %   10.5% (4)

Operating expenses, excluding interest expense(4)

    0.9% (5)(6)   4.0% (5)   4.0% (5)   2.5 %   2.8 %   4.8% (4)

(1)
Certain reclassifications have been made to prior period balances to conform to the current financial statement presentation adopted for the reporting period ended March 31, 2012.

(2)
Weighted-average effective yield is calculated based on our debt investments at the end of each period and includes amortization of deferred debt origination fees and accretion of original issue discount, but excludes liquidation fees payable upon repayment and any debt investments on non-accrual status.

(3)
Excludes the investment in affiliated Investment Manager, as discussed elsewhere in this prospectus.

(4)
The ratio for the year ended December 31, 2007 reflects the impact of professional costs related to the IPO. These costs were 25.7% of operating expenses for the year.

(5)
Ratios are net of amounts attributable to MSC II non-controlling interest.

(6)
Not annualized.

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MANAGEMENT'S DISCUSSION AND ANALYSIS OF
FINANCIAL CONDITION AND RESULTS OF OPERATIONS

        The following discussion should be read in conjunction with our financial statements and the notes thereto included elsewhere in this prospectus.

        Statements we make in the following discussion which express a belief, expectation or intention, as well as those that are not historical fact, are forward-looking statements that are subject to risks, uncertainties and assumptions. Our actual results, performance or achievements, or industry results, could differ materially from those we express in the following discussion as a result of a variety of factors, including the risks and uncertainties we have referred to under the headings "Cautionary Statement Concerning Forward-Looking Statements" and "Risk Factors" in this prospectus.

ORGANIZATION

        Main Street Capital Corporation ("MSCC") was formed on March 9, 2007 for the purpose of (i) acquiring 100% of the equity interests of Main Street Mezzanine Fund, LP ("MSMF") and its general partner, Main Street Mezzanine Management, LLC ("MSMF GP"), (ii) acquiring 100% of the equity interests of Main Street Capital Partners, LLC (the "Investment Manager"), (iii) raising capital in an initial public offering, which was completed in October 2007 (the "IPO"), and (iv) thereafter operating as an internally managed business development company ("BDC") under the Investment Company Act of 1940, as amended (the "1940 Act"). MSMF is licensed as a Small Business Investment Company ("SBIC") by the United States Small Business Administration ("SBA") and the Investment Manager acts as MSMF's manager and investment adviser. Because the Investment Manager, which employs all of the executive officers and other employees of MSCC, is wholly owned by us, we do not pay any external investment advisory fees, but instead we incur the operating costs associated with employing investment and portfolio management professionals through the Investment Manager. The IPO and related transactions discussed above were consummated in October 2007 and are collectively termed the "Formation Transactions."

        On January 7, 2010, MSCC consummated transactions (the "Exchange Offer") to exchange 1,239,695 shares of its common stock for approximately 88% of the total dollar value of the limited partner interests in Main Street Capital II, LP ("MSC II" and, together with MSMF, the "Funds"). Pursuant to the terms of the Exchange Offer, 100% of the membership interests in the general partner of MSC II, Main Street Capital II GP, LLC ("MSC II GP"), were also transferred to MSCC for no consideration. MSC II commenced operations in January 2006, is an investment fund that operates as an SBIC and is also managed by the Investment Manager. During the first three months of 2012, MSCC exchanged 229,634 shares of its common stock to acquire all of the remaining minority ownership in the total dollar value of the MSC II limited partnership interests, including approximately 5% owned by affiliates of MSCC (the "Final MSC II Exchange"). After the acquisition of these remaining MSC II equity interests, MSCC owns 100% of MSC II as of March 31, 2012. The Exchange Offer and related transactions, including the transfer of the MSC II GP interests and the Final MSC II Exchange, are collectively termed the "Exchange Offer Transactions."

        MSCC has elected to be treated for federal income tax purposes as a regulated investment company ("RIC") under Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"). As a result, MSCC generally will not pay corporate-level federal income taxes on any net ordinary income or capital gains that it distributes to its stockholders as dividends.

        MSCC has direct or indirect subsidiaries that have elected to be taxable entities (the "Taxable Subsidiaries"). The primary purpose of these entities is to hold certain investments that generate "pass through" income for tax purposes. The Taxable Subsidiaries are each taxed at their normal corporate tax rates based on their taxable income.

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        Unless otherwise noted or the context otherwise indicates, the terms "we," "us," "our" and "Main Street" refer to MSCC and its subsidiaries, including the Funds and the Taxable Subsidiaries.

OVERVIEW

        We are a principal investment firm primarily focused on providing customized debt and equity financing to lower middle market ("LMM") companies and debt capital to middle market ("Middle Market") companies. Our portfolio investments are typically made to support management buyouts, recapitalizations, growth financings, refinancings and acquisitions of companies that operate in diverse industry sectors. We seek to partner with entrepreneurs, business owners and management teams and generally provide "one stop" financing alternatives within our LMM portfolio. We invest primarily in secured debt instruments, equity investments, warrants and other securities of LMM companies based in the United States and in secured debt instruments of Middle Market companies generally headquartered in the United States. Our principal investment objective is to maximize our portfolio's total return by generating current income from our debt investments and capital appreciation from our equity and equity related investments, including warrants, convertible securities and other rights to acquire equity securities in a portfolio company. Our LMM companies generally have annual revenues between $10 million and $150 million, and our LMM portfolio investments generally range in size from $5 million to $25 million. Our Middle Market investments are made in businesses that are generally larger in size than our LMM portfolio companies and our Middle Market portfolio companies had weighted average annual revenues of $476 million as of March 31, 2012. Our other portfolio ("Other Portfolio") investments primarily consist of investments which are not consistent with the typical profiles for LMM and Middle Market portfolio investments, including investments which may be managed by third parties.

        We seek to fill the current financing gap for LMM businesses, which, historically, have had more limited access to financing from commercial banks and other traditional sources. The underserved nature of the lower middle market creates the opportunity for us to meet the financing needs of LMM companies while also negotiating favorable transaction terms and equity participations. Our ability to invest across a company's capital structure, from senior secured loans to equity securities, allows us to offer portfolio companies a comprehensive suite of financing solutions, or "one stop" financing. Providing customized, "one stop" financing solutions has become even more relevant to our LMM portfolio companies in the current investing environment. We generally seek to partner directly with entrepreneurs, management teams and business owners in making our investments. We believe that our LMM investment strategy has a lower correlation to the broader debt and equity markets.

        As of March 31, 2012, we had debt and equity investments in 53 LMM portfolio companies with an aggregate fair value of $388.1 million, with a total cost basis of approximately $322.3 million, and a weighted average annual effective yield on our LMM debt investments of approximately 14.9%. Approximately 77% of our total LMM portfolio investments at cost were in the form of debt investments and 98% of such debt investments at cost were secured by first priority liens on the assets of our LMM portfolio companies as of March 31, 2012. At March 31, 2012, we had equity ownership in approximately 92% of our LMM portfolio companies and the average fully diluted equity ownership in those portfolio companies was approximately 33%. As of December 31, 2011, we had debt and equity investments in 54 LMM portfolio companies with an aggregate fair value of $415.7 million with a total cost basis of approximately $349.0 million and a weighted average annual effective yield on our LMM debt investments of approximately 14.8%. The weighted average annual yields were computed using the effective interest rates for all debt investments as of March 31, 2012 and December 31, 2011, including amortization of deferred debt origination fees and accretion of original issue discount but excluding liquidation fees payable upon repayment and any debt investments on non-accrual status.

        In addition to our LMM investment strategy, we opportunistically pursue investments in Middle Market companies. Our Middle Market portfolio investments primarily consist of direct or secondary

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purchases of interest-bearing debt securities in companies that are generally larger in size than the LMM companies included in our LMM portfolio. Our Middle Market portfolio debt investments are generally secured by either a first or second priority lien on the assets of the company and have an expected duration of between three and five years.

        As of March 31, 2012, we had Middle Market portfolio investments in 62 companies collectively totaling approximately $251.0 million in fair value with a total cost basis of approximately $249.8 million. The weighted average revenues for the 62 Middle Market portfolio company investments were approximately $476 million. Our Middle Market debt investments are primarily in the form of debt investments and 86% of such debt investments at cost were secured by first priority liens on portfolio company assets as of March 31, 2012. The weighted average annual effective yield on our Middle Market portfolio debt investments was approximately 9.2% as of March 31, 2012. As of December 31, 2011, we had Middle Market portfolio investments in 57 companies collectively totaling approximately $226.5 million in fair value with a total cost basis of approximately $228.9 million. The weighted average revenues for the 57 Middle Market portfolio company investments were approximately $473 million. The weighted average annual effective yield on our Middle Market portfolio debt investments was approximately 9.5% as of December 31, 2011. The weighted average annual yields were computed using the effective interest rates for all debt investments as of March 31, 2012 and December 31, 2011, including amortization of deferred debt origination fees and accretion of original issue discount but excluding liquidation fees payable upon repayment.

        As of March 31, 2012, we had Other Portfolio investments in 4 companies collectively totaling approximately $25.1 million in both fair value and cost basis. As of December 31, 2011, we had Other Portfolio investments in 3 companies collectively totaling approximately $14.1 million in both fair value and cost basis.

        Our portfolio investments are generally made through MSCC and the Funds. MSCC and the Funds share the same investment strategies and criteria, although they are subject to different regulatory regimes. An investor's return in MSCC will depend, in part, on the Funds' investment returns as MSMF and MSC II are both wholly owned subsidiaries of MSCC.

        The level of new portfolio investment activity will fluctuate from period to period based upon our view of the current economic fundamentals, our ability to identify new investment opportunities that meet our investment criteria, and our ability to consummate the identified opportunities. The level of new investment activity, and associated interest and fee income, will directly impact future investment income. In addition, the level of dividends paid by portfolio companies and the portion of our portfolio debt investments on non-accrual status will directly impact future investment income. While we intend to grow our portfolio and our investment income over the long-term, our growth and our operating results may be more limited during depressed economic periods. However, we intend to appropriately manage our cost structure and liquidity position based on applicable economic conditions and our investment outlook. The level of realized gains or losses and unrealized appreciation or depreciation will also fluctuate depending upon portfolio activity and the performance of our individual portfolio companies. The changes in realized gains and losses and unrealized appreciation or depreciation could have a material impact on our operating results.

        MSCC and its consolidated subsidiaries are internally managed by the Investment Manager, a wholly owned subsidiary, which employs all of the executive officers and other employees of Main Street. Because the Investment Manager is wholly owned by MSCC, MSCC does not pay any external investment advisory fees, but instead incurs the operating costs associated with employing investment and portfolio management professionals through the Investment Manager. We believe that our internally managed structure provides us with a beneficial operating expense structure when compared to other publicly-traded and privately-held investment firms which are externally managed, and our internally managed structure allows us the opportunity to leverage our non-interest operating expenses

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as we grow our investment portfolio. For the quarter ended March 31, 2012, the ratio of our total operating expenses, excluding interest expense, as a percentage of our quarterly average total assets was 2.0% on an annualized basis, compared to 2.5% on an annualized basis for the quarter ended March 31, 2011 and 2.2% for the year ended December 31, 2011.

        For the three months ended March 31, 2012, we paid dividends on a monthly basis totaling $0.405 per share, or $10.9 million. In March 2012, we declared monthly dividends for the second quarter of 2012 totaling $0.42 per share representing a 7.7% increase compared to the monthly dividends for the second quarter of 2011 and a 3.7% increase compared to the first quarter of 2012. During 2011, we paid monthly dividends of $1.56 per share for the entire year. Including the dividends declared for the second quarter of 2012, we will have paid approximately $7.14 per share in cumulative dividends since our October 2007 initial public offering.

        At March 31, 2012, we had $89.0 million in cash and cash equivalents and $14.3 million in marketable securities and idle funds investments. In the second quarter of 2012, we expanded our credit facility (the "Credit Facility") from $235 million to $277.5 million to provide additional liquidity in support of future investment and operational activities. The $42.5 million increase in total commitments included commitment increases by three lenders currently participating in the Credit Facility. The Credit Facility contains an accordion feature that allows for a further increase in total commitments under the facility up to $350 million of total commitments from new and existing lenders on the same terms and conditions as the existing commitments.

        In October 2011, we completed a follow-on public stock offering in which we sold 3,450,000 shares of common stock, including the underwriters' full exercise of the over-allotment option, at a price to the public of $17.50 per share (or approximately 123% of the then latest reported Net Asset Value per share), resulting in total net proceeds of approximately $57.5 million, after deducting underwriters' commissions and offering costs. In March 2011, we completed a follow-on public stock offering in which we sold 4,025,000 shares of common stock, including the underwriters' full exercise of the over-allotment option, at a price to the public of $18.35 per share (or approximately 141% of the then latest reported Net Asset Value per share), resulting in total net proceeds of approximately $70.3 million, after deducting underwriters' commissions and offering costs.

CRITICAL ACCOUNTING POLICIES

        Our financial statements are prepared in accordance with generally accepted accounting principles in the United States of America ("U.S. GAAP"). For the three months ended March 31, 2012 and 2011, our consolidated financial statements include the accounts of MSCC and its consolidated subsidiaries, including the Funds. Portfolio investments, as used herein, refers to all of our portfolio investments in LMM companies, Middle Market portfolio investments, Other Portfolio investments and our investment in the Investment Manager but excludes all of our "Marketable securities and idle funds investments." "Marketable securities and idle funds investments" are classified as financial instruments and are reported separately on our Consolidated Balance Sheets and Consolidated Schedule of Investments due to the nature of such investments. Our results of operations for the three months ended March 31, 2012 and 2011, cash flows for the three months ended March 31, 2012 and 2011 and financial position as of March 31, 2012 and December 31, 2011, are presented on a consolidated basis. The effects of all intercompany transactions between Main Street and its consolidated subsidiaries have been eliminated in consolidation. Certain reclassifications have been made to prior period balances to conform with the current financial statement presentation, including certain investments previously classified as "Marketable securities and idle funds investments" that are now considered a part of the Middle Market portfolio and are now classified as "Non-Control/Non-Affiliate investments."

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        The accompanying unaudited consolidated financial statements of Main Street are presented in conformity with U.S. GAAP for interim financial information and pursuant to the requirements for reporting on Form 10-Q and Article 10 of Regulation S-X. Accordingly, certain disclosures accompanying annual financial statements prepared in accordance with U.S. GAAP are omitted. In the opinion of management, the unaudited consolidated financial results included herein contain all adjustments, consisting solely of normal recurring accruals, considered necessary for the fair presentation of financial statements for the interim periods included herein. The results of operations for the three months ended March 31, 2012 are not necessarily indicative of the operating results to be expected for the full year. Also, the unaudited financial statements and notes should be read in conjunction with the audited financial statements and notes thereto for the year ended December 31, 2011. Financial statements prepared on a U.S. GAAP basis require management to make estimates and assumptions that affect the amounts and disclosures reported in the financial statements and accompanying notes. Such estimates and assumptions could change in the future as more information becomes known, which could impact the amounts reported and disclosed herein.

        Under the investment company rules and regulations pursuant to Article 6 of Regulation S-X and the Audit and Accounting Guide for Investment Companies issued by the American Institute of Certified Public Accountants (the "AICPA Guide"), we are precluded from consolidating portfolio company investments, including those in which we have a controlling interest, unless the portfolio company is another investment company. An exception to this general principle in the AICPA Guide occurs if we own a controlled operating company that provides all or substantially all of its services directly to us, or to an investment company of ours. None of the investments made by us qualify for this exception. Therefore, our portfolio investments are carried on the balance sheet at fair value, as discussed further in Note B to our consolidated financial statements, with any adjustments to fair value recognized as "Net Change in Unrealized Appreciation (Depreciation)" on our Statement of Operations until the investment is exited, resulting in any gain or loss on exit being recognized as a "Net Realized Gain (Loss) from Investments."

        The most significant determination inherent in the preparation of our consolidated financial statements is the valuation of our portfolio investments and the related amounts of unrealized appreciation and depreciation. As of March 31, 2012 and December 31, 2011, approximately 85% and 89%, respectively, of our total assets represented investments in portfolio companies valued at fair value (including our investment in the Investment Manager). We are required to report our investments at fair value. We follow the provisions of the Accounting Standards Codification ("Codification" or "ASC") 820, Fair Value Measurements and Disclosures ("ASC 820"). ASC 820 defines fair value, establishes a framework for measuring fair value, establishes a fair value hierarchy based on the quality of inputs used to measure fair value, and enhances disclosure requirements for fair value measurements.

        Our portfolio strategy calls for us to invest primarily in illiquid securities issued by private, LMM companies as well as debt securities issued by middle market companies that are generally larger in size than the LMM companies. Our portfolio also includes Other Portfolio investments which primarily consist of investments which are not consistent with the typical profiles for LMM and Middle Market portfolio investments, including investments which may be managed by third parties. All of our portfolio investments may be subject to restrictions on resale. LMM companies and Other Portfolio companies generally have no established trading market while Middle Market securities generally have established markets that are not active. We determine in good faith the fair value of our portfolio investments pursuant to a valuation policy in accordance with ASC 820 and a valuation process approved by our Board of Directors and in accordance with the 1940 Act. For LMM investments, we review external events, including private mergers, sales and acquisitions involving comparable

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companies, and include these events in the valuation process. For Other Portfolio investments we generally value such investments based on the fair value of the portfolio company as determined by independent third parties, and based on our proportional ownership in the portfolio company, as well as the financial position and assessed risk of each of these portfolio investments. For Middle Market portfolio debt investments, we generally use observable inputs such as quoted prices in the valuation process. Our valuation policy and process is intended to provide a consistent basis for determining the fair value of the portfolio.

        For valuation purposes, control investments are composed of equity and debt securities for which we have a controlling interest in the portfolio company or have the ability to nominate a majority of the portfolio company's board of directors. Market quotations are generally not readily available for our control investments. As a result, we determine the fair value of control investments using a combination of market and income approaches. Under the market approach, we will typically use the enterprise value methodology to determine the fair value of these investments. The enterprise value is the fair value at which an enterprise could be sold in a transaction between two willing parties, other than through a forced or liquidation sale. Typically, private companies are bought and sold based on multiples of earnings before interest, taxes, depreciation and amortization, or EBITDA, cash flows, net income, revenues, or in limited cases, book value. There is no single methodology for estimating enterprise value. For any one portfolio company, enterprise value is generally described as a range of values from which a single estimate of enterprise value is derived. In estimating the enterprise value of a portfolio company, we analyze various factors, including the portfolio company's historical and projected financial results. We allocate the enterprise value to investments in order of the legal priority of the investments. We will also use the income approach to determine the fair value of these securities, based on projections of the discounted future free cash flows that the portfolio company or the debt security will likely generate. The valuation approaches for our control investments estimate the value of the investment if we were to sell, or exit, the investment. In addition, these valuation approaches consider the value associated with our ability to control the capital structure of the portfolio company, as well as the timing of a potential exit.

        For valuation purposes, non-control LMM investments are composed of debt and equity securities for which we do not have a controlling interest in the portfolio company, or the ability to nominate a majority of the portfolio company's board of directors. Market quotations for non-control LMM investments are generally not readily available. For our non-control LMM investments, we use a combination of the market and income approaches to value our equity investments and the income approach to value our debt instruments. For non-control LMM debt investments, we determine the fair value primarily using a yield approach that analyzes the discounted cash flows of interest and principal for the debt security, as set forth in the associated loan agreements, as well as the financial position and credit risk of each of these portfolio investments. Our estimate of the expected repayment date of an LMM debt security is generally the legal maturity date of the instrument, as we generally intend to hold our loans to maturity. The yield analysis considers changes in leverage levels, credit quality, portfolio company performance and other factors. We will use the value determined by the yield analysis as the fair value for that security; however, because of our general intent to hold our loans to maturity, the fair value will not exceed the face amount of the LMM debt security. A change in the assumptions that we use to estimate the fair value of our LMM debt securities using the yield analysis could have a material impact on the determination of fair value. If there is deterioration in credit quality or if an LMM debt security is in workout status, we may consider other factors in determining the fair value of the LMM debt security, including the value attributable to the debt security from the enterprise value of the portfolio company or the proceeds that would most likely be received in a liquidation analysis.

        Our Middle Market portfolio investments primarily consist of direct or secondary purchases of interest-bearing debt securities in companies that are generally larger in size than the LMM companies

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included in our investment portfolio. For valuation purposes, all of our Middle Market portfolio investments are non-control investments and are primarily composed of debt securities for which we do not have a controlling interest in the portfolio company, or the ability to nominate a majority of the portfolio company's board of directors. We primarily use observable inputs to determine the fair value of these investments through obtaining third party quotes or independent pricing.

        For valuation purposes, all of our Other Portfolio investments are non-control investments and are composed of securities for which we generally do not have a controlling interest in the portfolio company, or the ability to nominate a majority of the portfolio company's board of directors. Similar to the LMM investment portfolio, market quotations for Other Portfolio investments are generally not readily available. We value our Other Portfolio equity investments based on the fair value of the portfolio company as determined by independent third parties and based on our proportional ownership in the portfolio company, as well as the financial position and assessed risk of each of these portfolio investments. We value our Other Portfolio debt investments based on the income approach and generally use a yield approach that analyzes the discounted cash flows of interest and principal for the debt security, as set forth in the associated loan agreements, as well as the financial position and credit risk of each of these portfolio investments.

        Due to the inherent uncertainty in the valuation process, our determination of fair value for our LMM and Other Portfolio investments may differ materially from the values that would have been used had a ready market for the securities existed. In addition, changes in the market environment, portfolio company performance and other events that may occur over the lives of the investments may cause the gains or losses ultimately realized on these investments to be materially different than the valuations currently assigned. We determine the fair value of each individual investment and record changes in fair value as unrealized appreciation or depreciation.

        We record interest and dividend income on the accrual basis to the extent amounts are expected to be collected. Dividend income is recorded as dividends are declared or at the point an obligation exists for the portfolio company to make a distribution. In accordance with our valuation policy, we evaluate accrued interest and dividend income periodically for collectability. When a loan or debt security becomes 90 days or more past due, and if we otherwise do not expect the debtor to be able to service all of its debt or other obligations, we will generally place the loan or debt security on non-accrual status and cease recognizing interest income on that loan or debt security until the borrower has demonstrated the ability and intent to pay contractual amounts due. If a loan or debt security's status significantly improves regarding the debtor's ability to service the debt or other obligations, or if a loan or debt security is fully impaired, sold or written off, we will remove it from non-accrual status.

        We may periodically provide services, including structuring and advisory services, to our portfolio companies. For services that are separately identifiable and evidence exists to substantiate fair value, income is recognized as earned, which is generally when the investment or other applicable transaction closes. Fees received in connection with debt financing transactions for services that do not meet these criteria are treated as debt origination fees and are accreted into interest income over the life of the financing.

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        We hold debt and preferred equity instruments in our investment portfolio that contain payment-in-kind ("PIK") interest and cumulative dividend provisions. The PIK interest, computed at the contractual rate specified in each debt agreement, is periodically added to the principal balance of the debt and is recorded as interest income. Thus, the actual collection of this interest may be deferred until the time of debt principal repayment. Cumulative dividends are recorded as dividend income, and any dividends in arrears are added to the balance of the preferred equity investment. The actual collection of dividends in arrears may be deferred until such time as the preferred equity is redeemed. To maintain RIC tax treatment (as discussed below), these non-cash sources of income may need to be paid out to stockholders in the form of distributions, even though we may not have collected the PIK interest and cumulative dividends in cash. We will stop accruing PIK interest and cumulative dividends and will write off any accrued and uncollected interest and dividends in arrears when it is determined that such PIK interest and dividends in arrears are no longer collectible.

        We account for our share-based compensation plans using the fair value method, as prescribed by ASC 718, Compensation—Stock Compensation. Accordingly, for restricted stock awards, we measured the grant date fair value based upon the market price of our common stock on the date of the grant and will amortize this fair value to share-based compensation expense over the requisite service period or vesting term.

        MSCC has elected to be, and intends to continue to qualify for the tax treatment applicable to, a RIC under the Code, and, among other things, intends to make the required distributions to its stockholders as specified therein. In order to qualify as a RIC, MSCC is required to timely distribute to its stockholders at least 90% of investment company taxable income, as defined by the Code, each year. Depending on the level of taxable income earned in a tax year, MSCC may choose to carry forward taxable income in excess of current year distributions into the next tax year and pay a 4% excise tax on such income. Any such carryover taxable income must be distributed through a dividend declared prior to filing the final tax return related to the year which generated such taxable income.

        The Taxable Subsidiaries hold certain portfolio investments of Main Street. The Taxable Subsidiaries are consolidated for U.S. GAAP reporting purposes, and the portfolio investments held by them are included in Main Street's consolidated financial statements. The Taxable Subsidiaries permit Main Street to hold equity investments in portfolio companies which are "pass through" entities for tax purposes in order to comply with the "source income" requirements contained in the RIC tax provisions. The Taxable Subsidiaries are not consolidated with Main Street for income tax purposes and may generate income tax expense, or benefit, as a result of their ownership of certain portfolio investments. This income tax expense, or benefit, is reflected in Main Street's Consolidated Statement of Operations.

        The Taxable Subsidiaries use the liability method in accounting for income taxes. Deferred tax assets and liabilities are recorded for temporary differences between the tax basis of assets and liabilities and their reported amounts in the financial statements, using statutory tax rates in effect for the year in which the temporary differences are expected to reverse. A valuation allowance is provided against deferred tax assets when it is more likely than not that some portion or all of the deferred tax asset will not be realized.

        Taxable income generally differs from net income for financial reporting purposes due to temporary and permanent differences in the recognition of income and expenses. Taxable income

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generally excludes net unrealized appreciation or depreciation, as investment gains or losses are not included in taxable income until they are realized.

PORTFOLIO INVESTMENT COMPOSITION

        LMM portfolio investments principally consist of secured debt, equity warrants and direct equity investments in privately held, LMM companies. The LMM debt investments are primarily secured by either a first or second lien on the assets of the portfolio company, generally bear interest at fixed rates, and generally mature between five and seven years from the original investment date. In most LMM portfolio companies, we also receive nominally priced equity warrants and/or make direct equity investments, usually in connection with a debt investment.

        Middle market portfolio investments primarily consist of direct or secondary purchases of interest-bearing debt securities in companies that are generally larger in size than the LMM companies included in our LMM portfolio. Our Middle Market portfolio debt investments are generally secured by either a first or second priority lien.

        Summaries of the composition of our LMM investment portfolio, Middle Market investment portfolio, and total combined LMM and Middle Market investment portfolio at cost and fair value by type of investment as a percentage of the total LMM investment portfolio, the total Middle Market investment portfolio, and the total combined LMM and Middle Market investment portfolio are shown in the following table (this information excludes the Other Portfolio investments):

 
  March 31, 2012   December 31, 2011  
Cost:
  LMM   Middle
Market
  Total   LMM   Middle
Market
  Total  

First lien debt

    76.0 %   85.3 %   80.1 %   69.5 %   81.8 %   74.4 %

Equity

    18.2 %   0.3 %   10.4 %   20.5 %   0.2 %   12.5 %

Second lien debt

    1.2 %   14.4 %   7.0 %   5.0 %   18.0 %   10.1 %

Equity warrants

    4.6 %   0.0 %   2.5 %   5.0 %   0.0 %   3.0 %
                           

    100.0 %   100.0 %   100.0 %   100.0 %   100.0 %   100.0 %
                           

 

 
  March 31, 2012   December 31, 2011  
Fair Value:
  LMM   Middle
Market
  Total   LMM   Middle
Market
  Total  

First lien debt

    62.2 %   85.4 %   71.4 %   57.7 %   81.7 %   66.2 %

Equity

    29.3 %   0.2 %   17.9 %   29.0 %   0.3 %   18.8 %

Second lien debt

    1.0 %   14.4 %   6.2 %   4.4 %   18.0 %   9.2 %

Equity warrants

    7.5 %   0.0 %   4.5 %   8.9 %   0.0 %   5.8 %
                           

    100.0 %   100.0 %   100.0 %   100.0 %   100.0 %   100.0 %
                           

        The following table shows the LMM investment portfolio, Middle Market investment portfolio, and total combined LMM and Middle Market investment portfolio composition by geographic region of the United States at cost and fair value as a percentage of total LMM investment portfolio, total Middle Market investment portfolio, and total combined LMM and Middle Market investment portfolio (this

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information excludes the Other Portfolio investments). The geographic composition is determined by the location of the corporate headquarters of the portfolio company:

 
  March 31, 2012   December 31, 2011  
Cost:
  LMM   Middle
Market
  Total   LMM   Middle
Market
  Total  

Southwest

    43.4 %   15.4 %   31.1 %   47.8 %   16.4 %   35.4 %

West

    35.2 %   9.5 %   24.0 %   31.9 %   13.7 %   24.7 %

Northeast

    3.2 %   40.0 %   19.3 %   3.9 %   32.6 %   15.2 %

Midwest

    9.9 %   23.8 %   16.0 %   9.0 %   21.6 %   14.0 %

Southeast

    8.3 %   11.3 %   9.6 %   7.4 %   15.7 %   10.7 %
                           

    100.0 %   100.0 %   100.0 %   100.0 %   100.0 %   100.0 %
                           

 

 
  March 31, 2012   December 31, 2011  
Fair Value:
  LMM   Middle
Market
  Total   LMM   Middle
Market
  Total  

Southwest

    47.1 %   15.2 %   34.6 %   52.1 %   16.2 %   39.3 %

West

    32.6 %   9.5 %   23.5 %   28.9 %   13.8 %   23.6 %

Northeast

    3.5 %   39.9 %   17.8 %   3.9 %   32.4 %   14.0 %

Midwest

    9.7 %   24.1 %   15.3 %   8.7 %   21.9 %   13.4 %

Southeast

    7.1 %   11.3 %   8.8 %   6.4 %   15.7 %   9.7 %
                           

    100.0 %   100.0 %   100.0 %   100.0 %   100.0 %   100.0 %
                           

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        Our LMM and Middle Market portfolio investments are in companies conducting business in a variety of industries. Set forth below are tables showing the composition of our LMM portfolio investments, Middle Market portfolio investments, and total combined LMM and Middle Market portfolio investments by industry at cost and fair value as of March 31, 2012 and December 31, 2011 (this information excludes the Other Portfolio investments):

 
  March 31, 2012   December 31, 2011  
Cost:
  LMM   Middle
Market
  Total   LMM   Middle
Market
  Total  

Energy Equipment and Services

    10.5 %   8.2 %   9.4 %   9.2 %   7.5 %   8.5 %

Health Care Providers and Services

    7.0 %   11.8 %   9.1 %   6.5 %   9.1 %   7.5 %

Media

    9.4 %   6.0 %   7.9 %   8.7 %   6.6 %   7.9 %

Machinery

    10.6 %   3.1 %   7.3 %   9.9 %   2.1 %   6.9 %

Commercial Services and Supplies

    11.7 %   0.0 %   6.6 %   15.4 %   0.9 %   9.7 %

Software

    3.0 %   10.3 %   6.2 %   2.8 %   8.4 %   5.0 %

Specialty Retail

    5.9 %   5.1 %   5.5 %   5.3 %   5.6 %   5.4 %

Construction and Engineering

    5.8 %   3.5 %   5.0 %   5.3 %   0.0 %   5.0 %

Diversified Consumer Services

    4.8 %   0.0 %   2.7 %   2.7 %   0.0 %   1.6 %

Hotels, Restaurants and Leisure

    2.2 %   2.8 %   2.5 %   2.1 %   7.2 %   4.1 %

Food and Staples Retailing

    0.0 %   5.7 %   2.5 %   0.0 %   6.2 %   2.5 %

Chemicals

    0.0 %   5.4 %   2.4 %   0.0 %   3.8 %   1.5 %

Electronic Equipment, Instruments and Components

    4.1 %   0.0 %   2.3 %   4.6 %   0.0 %   2.8 %

Construction Materials

    1.3 %   4.1 %   2.3 %   1.1 %   4.4 %   0.7 %

Professional Services

    3.8 %   0.0 %   2.2 %   3.5 %   0.0 %   2.1 %

Consumer Finance

    3.2 %   0.8 %   2.2 %   3.0 %   0.9 %   2.1 %

Insurance

    3.3 %   0.0 %   1.9 %   3.1 %   2.6 %   2.9 %

IT Services

    0.0 %   4.4 %   1.9 %   0.0 %   4.1 %   1.6 %

Building Products

    2.9 %   0.0 %   1.6 %   2.6 %   0.0 %   1.6 %

Food Products

    0.0 %   3.6 %   1.6 %   0.0 %   3.9 %   1.6 %

Internet Software and Services

    0.4 %   3.0 %   1.5 %   3.0 %   0.0 %   1.8 %

Metals and Mining

    0.0 %   3.5 %   1.5 %   0.0 %   0.0 %   0.0 %

Paper and Forest Products

    2.6 %   0.0 %   1.4 %   2.2 %   0.0 %   1.3 %

Health Care Equipment and Supplies

    2.4 %   0.0 %   1.4 %   2.2 %   1.2 %   1.8 %

Transportation Infrastructure

    2.2 %   0.0 %   1.3 %   2.0 %   0.0 %   1.2 %

Pharmaceuticals

    0.0 %   2.4 %   1.0 %   0.0 %   2.6 %   1.0 %

Real Estate Management and Development

    0.0 %   2.3 %   1.0 %   0.0 %   2.5 %   1.0 %

Internet and Catalog Retail

    0.0 %   2.1 %   0.9 %   0.0 %   2.2 %   0.9 %

Biotechnology

    0.0 %   2.0 %   0.9 %   0.0 %   2.2 %   0.8 %

Auto Components

    0.0 %   1.5 %   0.7 %   0.0 %   2.9 %   1.2 %

Electric Utilities

    0.0 %   0.9 %   0.4 %   0.0 %   2.0 %   0.8 %

Thrifts and Mortgage Finance

    0.0 %   0.0 %   0.0 %   0.0 %   2.0 %   0.8 %

Other(1)

    2.9 %   7.5 %   4.9 %   4.8 %   9.1 %   6.4 %
                           

    100.0 %   100.0 %   100.0 %   100.0 %   100.0 %   100.0 %
                           

(1)
Includes various industries with each industry individually less than 2.0% of the total LMM portfolio, total Middle Market portfolio and combined total LMM and Middle Market portfolio in each period.

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  March 31, 2012   December 31, 2011  
Fair Value:
  LMM   Middle
Market
  Total   LMM   Middle
Market
  Total  

Energy Equipment and Services

    12.9 %   8.4 %   11.2 %   11.2 %   7.5 %   9.8 %

Health Care Providers and Services

    8.0 %   11.7 %   9.5 %   7.4 %   9.0 %   7.9 %

Machinery

    12.0 %   3.2 %   8.6 %   10.7 %   2.2 %   7.7 %

Media

    7.9 %   6.0 %   7.2 %   7.4 %   6.5 %   7.1 %

Commercial Services and Supplies

    10.3 %   0.0 %   6.3 %   13.5 %   0.9 %   9.0 %

Software

    3.0 %   10.5 %   5.9 %   2.8 %   8.4 %   4.8 %

Construction and Engineering

    6.7 %   3.5 %   5.7 %   6.0 %   0.0 %   5.5 %

Specialty Retail

    4.1 %   4.7 %   4.3 %   3.8 %   5.2 %   4.3 %

Diversified Consumer Services

    5.7 %   0.0 %   3.5 %   3.7 %   0.0 %   2.4 %

Hotels, Restaurants and Leisure

    2.6 %   2.8 %   2.7 %   2.5 %   7.2 %   4.2 %

Food and Staples Retailing

    0.0 %   5.6 %   2.2 %   0.0 %   6.3 %   2.2 %

Chemicals

    0.0 %   5.5 %   2.1 %   0.0 %   3.8 %   1.3 %

Electronic Equipment, Instruments and Components

    3.3 %   0.0 %   2.0 %   3.7 %   0.0 %   2.4 %

Internet Software and Services

    1.3 %   3.0 %   2.0 %   5.8 %   0.0 %   3.7 %

Construction Materials

    1.0 %   4.1 %   2.0 %   0.8 %   4.5 %   0.5 %

Consumer Finance

    2.7 %   0.8 %   1.9 %   2.5 %   0.9 %   1.9 %

Trading Companies and Distributors

    2.9 %   0.0 %   1.8 %   2.6 %   0.0 %   1.7 %

Insurance

    2.8 %   0.0 %   1.7 %   2.6 %   2.6 %   2.6 %

IT Services

    0.0 %   4.1 %   1.6 %   0.0 %   3.8 %   1.4 %

Professional Services

    2.3 %   0.0 %   1.4 %   2.2 %   0.0 %   1.4 %

Paper and Forest Products

    2.4 %   0.0 %   1.4 %   2.2 %   0.0 %   1.4 %

Food Products

    0.0 %   3.6 %   1.4 %   0.0 %   4.0 %   1.4 %

Metals and Mining

    0.0 %   3.6 %   1.4 %   0.0 %   0.0 %   0.0 %

Transportation Infrastructure

    2.2 %   0.0 %   1.3 %   2.0 %   0.0 %   1.3 %

Health Care Equipment and Supplies

    2.0 %   0.0 %   1.2 %   1.9 %   1.2 %   1.6 %

Pharmaceuticals

    0.0 %   2.5 %   1.0 %   0.0 %   2.8 %   1.0 %

Real Estate Management and Development

    0.0 %   2.3 %   0.9 %   0.0 %   2.6 %   0.9 %

Internet and Catalog Retail

    0.0 %   2.1 %   0.8 %   0.0 %   2.2 %   0.8 %

Biotechnology

    0.0 %   1.9 %   0.8 %   0.0 %   2.1 %   0.7 %

Auto Components

    0.0 %   1.6 %   0.6 %   0.0 %   3.0 %   1.1 %

Electric Utilities

    0.0 %   0.9 %   0.3 %   0.0 %   2.0 %   0.7 %

Thrifts and Mortgage Finance

    0.0 %   0.0 %   0.0 %   0.0 %   2.1 %   0.7 %

Other(1)

    3.9 %   7.6 %   5.3 %   4.7 %   9.2 %   6.6 %
                           

    100.0 %   100.0 %   100.0 %   100.0 %   100.0 %   100.0 %
                           

(1)
Includes various industries with each industry individually less than 2.0% of the total LMM portfolio, total Middle Market portfolio and combined total LMM and Middle Market portfolio in each period.

        Our LMM, Middle Market and Other Portfolio investments carry a number of risks including, but not limited to: (1) investing in LMM, Middle Market and Other Portfolio companies which may have limited operating histories and financial resources; (2) holding investments that generally are not publicly traded and which may be subject to legal and other restrictions on resale; and (3) other risks common to investing in below investment grade debt and equity investments in LMM, Middle Market and Other Portfolio companies.

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PORTFOLIO ASSET QUALITY

        We utilize an internally developed investment rating system to rate the performance of each LMM portfolio company. Investment Rating 1 represents a LMM portfolio company that is performing in a manner which significantly exceeds expectations. Investment Rating 2 represents a LMM portfolio company that, in general, is performing above expectations. Investment Rating 3 represents a LMM portfolio company that is generally performing in accordance with expectations. Investment Rating 4 represents a LMM portfolio company that is underperforming expectations. Investments with such a rating require increased monitoring and scrutiny by us. Investment Rating 5 represents a LMM portfolio company that is significantly underperforming. Investments with such a rating require heightened levels of monitoring and scrutiny by us and involve the recognition of significant unrealized depreciation on such investment. All new LMM portfolio investments receive an initial 3 rating.

        The following table shows the distribution of our LMM portfolio investments on the 1 to 5 investment rating scale at fair value as of March 31, 2012 and December 31, 2011:

 
  March 31, 2012   December 31, 2011  
Investment Rating
  Investments at
Fair Value
  Percentage of
Total Portfolio
  Investments at
Fair Value
  Percentage of
Total Portfolio
 
 
  (Unaudited)
   
   
 
 
  (dollars in thousands)
 

1

  $ 133,057     34.4 % $ 125,505     30.2 %

2

    93,655     24.1 %   119,234     28.7 %

3

    143,766     37.0 %   152,910     36.7 %

4

    17,591     4.5 %   17,765     4.3 %

5

        0.0 %   250     0.1 %
                   

Totals

  $ 388,069     100.0 % $ 415,664     100.0 %
                   

        Based upon our investment rating system, the weighted average rating of our LMM portfolio was approximately 2.1 as of March 31, 2012 and 2.2 as of December 31, 2011.

        For the total investment portfolio, as of March 31, 2012, we had no investments with positive fair value on non-accrual status and two fully impaired investments which comprised approximately 0.9% of the total portfolio investments at cost on non-accrual status, excluding the investment in the affiliated Investment Manager. As of December 31, 2011, we had one investment with positive fair value on non-accrual status, which comprised less than 0.1% of the total portfolio investments at fair value and, together with another fully impaired investment, comprised 0.9% of the total portfolio investments at cost, in each case excluding the investment in the affiliated Investment Manager.

        The broader fundamentals of the United States economy remain mixed, and unemployment remains elevated. In the event that the United States economy contracts, it is likely that the financial results of small- to mid-sized companies, like those in which we invest, could experience deterioration or limited growth from current levels, which could ultimately lead to difficulty in meeting their debt service requirements and an increase in defaults. Consequently, we can provide no assurance that the performance of certain portfolio companies will not be negatively impacted by economic cycles or other conditions, which could also have a negative impact on our future results.

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DISCUSSION AND ANALYSIS OF RESULTS OF OPERATIONS

 
  Three Months
Ended
March 31,
  Net Change  
 
  2012   2011   Amount   %  
 
  (dollars in millions)
 

Total investment income

  $ 20.6   $ 13.4   $ 7.2     54 %

Total expenses

    (7.7 )   (6.0 )   (1.7 )   29 %
                     

Net investment income

    12.9     7.4     5.5     74 %

Net realized gain from investments

    8.2         8.2     NM  
                     

Net realized income

    21.1     7.4     13.7     184 %

Net change in unrealized appreciation

    4.7     4.1     0.6     14 %

Income tax provision

    (1.9 )   (1.2 )   (0.7 )   56 %

Noncontrolling interest

    (0.1 )       (0.1 )   NM  
                     

Net increase in net assets resulting from operations attributable to common stock

  $ 23.8   $ 10.3   $ 13.5     130 %
                     

 

 
  Three Months
Ended
March 31,
  Net Change  
 
  2012   2011   Amount   %  
 
  (dollars in millions)
 

Net investment income

  $ 12.9   $ 7.4   $ 5.5     74 %

Share-based compensation expense

    0.5     0.4     0.1     31 %
                     

Distributable net investment income(a)

    13.4     7.8     5.6     71 %

Net realized gain from investments

    8.2         8.2     NM  
                     

Distributable net realized income(a)

  $ 21.6   $ 7.8   $ 13.8     175 %
                     

Distributable net investment income per share—

                         

Basic and diluted(a)(b)

  $ 0.50   $ 0.40   $ 0.10     25 %
                     

Distributable net realized income per share—

                         

Basic and diluted(a)(b)

  $ 0.80   $ 0.40   $ 0.40     100 %
                     

(a)
Distributable net investment income and distributable net realized income are net investment income and net realized income, respectively, as determined in accordance with U.S. generally accepted accounting principles, or GAAP, excluding the impact of share-based compensation expense which is non-cash in nature. Main Street believes presenting distributable net investment income and distributable net realized income, and related per share amounts, is useful and appropriate supplemental disclosure of information for analyzing its financial performance since share-based compensation does not require settlement in cash. However, distributable net investment income and distributable net realized income are non-GAAP measures and should not be considered as a replacement to net investment income, net realized income, and other earnings measures presented in accordance with GAAP. Instead, distributable net investment income and distributable net realized income should be reviewed only in connection with such GAAP measures in analyzing Main Street's financial performance. A reconciliation of net investment income and net realized income in accordance with GAAP to

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(b)
For the three months ended March 31, 2012, per share amounts exclude the earnings attributable to the remaining noncontrolling equity interests in MSC II that remained held by third parties prior to MSCC's completion of the Final MSC II Exchange. For the three months ended March 31, 2011, per share amounts exclude the earnings attributable to the remaining noncontrolling equity interests in MSC II not owned by Main Street.

        For the three months ended March 31, 2012, total investment income was $20.6 million, a 54% increase over the $13.4 million for the corresponding period of 2011. This comparable period increase was principally attributable to (i) a $6.9 million increase in interest income from higher average levels of both portfolio debt investments and interest-bearing marketable securities investments, (ii) a $0.2 million increase in fee income due to the increased size of the investment portfolio and (iii) a $0.1 million increase in dividend income from portfolio equity investments. The increase in investment income included (i) $1.8 million of non-recurring investment income associated with repayment and financing activities associated with two LMM portfolio investments and (ii) a $0.3 million increase in investment income associated with higher levels of accelerated prepayment activity for certain Middle Market portfolio debt investments and marketable securities investments.

        For the three months ended March 31, 2012, total expenses increased by approximately $1.7 million to $7.7 million from $6.0 million in the corresponding period of 2011. This comparable period increase in expenses was principally attributable to (i) higher interest expense of $1.0 million as a result of the issuance of an additional $30 million in SBIC debentures during the first quarter of 2011 and $10 million in SBIC debentures subsequent to March 31, 2011, and increased borrowing activity under the Credit Facility, (ii) higher share-based compensation expense of $0.1 million related to non-cash amortization for restricted share grants, and (iii) higher compensation and other operating expenses of $0.6 million related to the increase in investment income and portfolio investments compared to the corresponding period of 2011. The ratio of total operating expenses, excluding interest expense, as a percentage of average total assets for the three months ended March 31, 2012 was 2.0% on an annualized basis, compared to 2.5% on an annualized basis for the corresponding period of 2011 and 2.2% for the year ended December 31, 2011.

        Distributable net investment income for the three months ended March 31, 2012 increased 71% to $13.4 million, or $0.50 per share, compared with $7.8 million, or $0.40 per share, in the corresponding period of 2011. The increase in distributable net investment income was primarily due to the higher level of total investment income partially offset by higher interest and other operating expenses, due to the changes discussed above. Distributable net investment income on a per share basis for the first quarter of 2012 reflects (i) approximately $0.07 per share of investment income attributable to non-recurring investment income associated with two LMM portfolio investments, (ii) approximately $0.01 per share of investment income attributable to higher levels of accelerated prepayment activity for certain Middle Market portfolio debt investments and marketable securities investments and (iii) a greater number of average shares outstanding compared to the corresponding period in 2011 primarily due to the March 2011 and October 2011 follow-on stock offerings.

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        Net investment income for the three months ended March 31, 2012 was $12.9 million, or a 74% increase, compared to net investment income of $7.4 million during the corresponding period of 2011. The increase in net investment income was principally attributable to the increase in total investment income partially offset by the higher interest and other operating expenses discussed above.

        Distributable net realized income increased to $21.6 million, or $0.80 per share, in the first quarter of 2012 compared with distributable net realized income of $7.8 million, or $0.40 per share, in the corresponding period of 2011. This increase was due to (i) the higher level of total distributable net investment income in the first quarter of 2012 and (ii) the higher level of total net realized gain from investments during the first quarter of 2012 compared to the corresponding period of 2011. The $8.2 million net realized gain from investments during the first quarter of 2012 was primarily attributable to (i) a $9.2 million realized gain recognized on the partial exit of equity investments in one LMM portfolio company, (ii) a realized gain of $1.7 million recognized on the full exit of equity investments in one LMM portfolio company and (iii) $1.0 million of net realized gains related to Middle Market and marketable securities investments, partially offset by (i) a $1.8 million realized loss on the full exit of equity investments in one LMM portfolio company and (ii) a $2.0 million realized loss on a debt investment related to the full exit of an LMM portfolio company.

        The higher level of net investment income in addition to the change in net realized gain from investments during the three months ended March 31, 2012 resulted in a $13.7 million increase in net realized income compared with the corresponding period of 2011.

        For the three months ended March 31, 2012, the $4.7 million net change in unrealized appreciation was principally attributable to (i) unrealized appreciation on 19 LMM portfolio investments totaling $9.6 million, partially offset by unrealized depreciation on 5 LMM portfolio investments totaling $1.7 million, (ii) $3.7 million of net unrealized appreciation on the Middle Market investment portfolio, (iii) accounting reversals of net unrealized appreciation related to the net realized gains recognized during the first quarter of 2012 in the amounts of $7.0 million for portfolio investments and $0.1 million for marketable securities and idle funds investments, (iv) $0.3 million of net unrealized appreciation attributable to SBIC debentures held by MSC II, and (v) $0.1 million in unrealized depreciation attributable to our investment in the affiliated Investment Manager. The noncontrolling interest of $0.1 million recognized during the first quarter of 2012 reflects the pro rata portion of the net increase in net assets resulting from operations for MSCII attributable to the equity interests in MSCII that were not owned by MSCC prior to MSCC's completion of the Final MSC II Exchange. For the first quarter of 2012, we also recognized a net income tax provision of $1.9 million principally related to deferred taxes on net unrealized appreciation of equity investments held in our taxable subsidiaries and an accrual for excise taxes on estimated spillover taxable income as of March 31, 2012.

        As a result of these events, our net increase in net assets resulting from operations attributable to common stock during the three months ended March 31, 2012 was $23.8 million, or $0.89 per share, compared with a net increase in net assets resulting from operations attributable to common stock of $10.3 million, or $0.54 per share, in the corresponding period of 2011.

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  Years Ended
December 31,
  Net Change  
 
  2011   2010   Amount   %  
 
  (dollars in millions)
 

Total investment income

  $ 66.2   $ 36.5   $ 29.7     81 %

Total expenses

    (26.9 )   (17.2 )   (9.7 )   56 %
                   

Net investment income

    39.3     19.3     20.0     104 %

Net realized gain (loss) from investments

    2.7     (2.9 )   5.6     192 %
                   

Net realized income

    42.0     16.4     25.6     156 %

Net change in unrealized appreciation from investments

    28.4     19.6     8.8     45 %

Income tax provision

    (6.3 )   (1.0 )   (5.3 )   568 %

Bargain purchase gain

        4.9     (4.9 )   NM  

Noncontrolling interest

    (1.1 )   (1.2 )   0.1     (7 )%
                   

Net increase in net assets resulting from operations attributable to common stock

  $ 63.0   $ 38.7   $ 24.3     63 %
                   

 

 
  Years Ended
December 31,
  Net Change  
 
  2011   2010   Amount   %  
 
  (dollars in millions)
 

Net investment income

  $ 39.3   $ 19.3   $ 20.0     104 %

Share-based compensation expense

    2.0     1.4     0.6     38 %
                   

Distributable net investment income(a)

    41.3     20.7     20.6     99 %

Net realized gain (loss) from investments

    2.7     (2.9 )   5.6     192 %
                   

Distributable net realized income(a)

  $ 44.0   $ 17.8   $ 26.2     146 %
                   

Distributable net investment income per share—Basic and diluted(a)(b)

  $ 1.77   $ 1.25   $ 0.52     42 %
                   

Distributable net realized income per share—Basic and diluted(a)(b)

  $ 1.89   $ 1.08   $ 0.81     74 %
                   

(a)
Distributable net investment income and distributable net realized income are net investment income and net realized income, respectively, as determined in accordance with U.S. generally accepted accounting principles, or GAAP, excluding the impact of share-based compensation expense which is non-cash in nature. Main Street believes presenting distributable net investment income and distributable net realized income, and related per share amounts, is useful and appropriate supplemental disclosure of information for analyzing its financial performance since share-based compensation does not require settlement in cash. However, distributable net investment income and distributable net realized income are non-GAAP measures and should not be considered as a replacement to net investment income, net realized income, and other earnings measures presented in accordance with GAAP. Instead, distributable net investment income and distributable net realized income should be reviewed only in connection with such GAAP measures in analyzing Main Street's financial performance. A reconciliation of net investment income and net realized income in accordance with GAAP to

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        For the year ended December 31, 2011, total investment income was $66.2 million, a $29.7 million, or 81%, increase over the $36.5 million of total investment income for the corresponding period of 2010. This comparable period increase was principally attributable to (i) a $23.8 million increase in interest income from higher average levels of both portfolio debt investments and interest-bearing marketable securities investments, (ii) a $4.3 million increase in dividend income from portfolio equity investments, and (iii) a $1.6 million increase in fee income due to higher levels of transaction activity. The increase in investment income included a $2.7 million increase in investment income associated with higher levels of accelerated prepayment and repricing activity for certain debt investments.

        For the year ended December 31, 2011, total expenses increased by approximately $9.7 million, or 56%, to $26.9 million from $17.2 million for the corresponding period of 2010. This comparable period increase in expenses was principally attributable to (i) higher interest expense of $4.5 million as a result of the issuance of an additional $40 million in SBIC debentures subsequent to December 31, 2010, and increased borrowing activity under the Credit Facility, (ii) higher share-based compensation expense of $0.6 million related to non-cash amortization for restricted share grants, and (iii) higher compensation and other operating expenses of $4.7 million related to the significant increase in investment income and portfolio investments compared to the corresponding period of 2010. The ratio of total operating expenses, excluding interest expense, as a percentage of average total assets for the year ended December 31, 2011 was 2.2%, representing an approximate 7% decrease from the same ratio of 2.4% for the year ended December 31, 2010.

        Distributable net investment income for the year ended December 31, 2011 increased to $41.3 million, or $1.77 per share, compared with distributable net investment income of $20.7 million, or $1.25 per share, for the corresponding period of 2010. The increase in distributable net investment income was primarily due to the higher level of total investment income partially offset by higher interest and other operating expenses, due to the changes discussed above. Distributable net investment income on a per share basis for the year ended 2011 reflects approximately $0.12 per share of investment income associated with higher levels of accelerated prepayment and repricing activity for certain debt investments and (ii) a greater number of average shares outstanding compared to the corresponding period in 2010 primarily due to the October 2011, March 2011, and August 2010 follow-on stock offerings.

        Net investment income for the year ended December 31, 2011 was $39.3 million, or a 104% increase, compared to net investment income of $19.3 million for the corresponding period of 2010. The increase in net investment income was principally attributable to the increase in total investment income partially offset by higher interest and other operating expenses as discussed above.

        Distributable net realized income increased to $44.0 million, or $1.89 per share, for the year ended 2011 compared with distributable net realized income of $17.8 million, or $1.08 per share, for the corresponding period of 2010. The increase was primarily attributable to the higher level of

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distributable net investment income as well as the higher level of total net realized gain from investments in 2011 compared to the net realized loss from investments in the corresponding period of 2010. The $2.6 million net realized gain during 2011 was primarily attributable to (i) realized gain recognized on one partial exit of an LMM portfolio company equity investment, (ii) realized gain recognized on one full exit of an LMM portfolio company equity investment, and (iii) realized gains related to Middle Market and marketable securities investments. The $2.9 million net realized loss during the 2010 year was primarily attributable to $5.9 million of realized loss from our debt and equity investments in two portfolio companies, partially offset by (i) $2.3 million of realized gain on two partial exits and one full exit of portfolio company equity investments and (ii) $0.7 million of realized gain related to Middle Market and marketable securities and idle funds investments.

        The higher level of net investment income and the change from net realized loss to net realized gain from investments during 2011 resulted in a $25.6 million increase in net realized income compared with the corresponding period of 2010.

        For the year ended December 31, 2011, the $28.4 million net change in unrealized appreciation was principally attributable to (i) unrealized appreciation on 30 LMM portfolio investments totaling $53.6 million, partially offset by unrealized depreciation on 11 LMM portfolio investments totaling $11.8 million, (ii) $3.7 million of net unrealized depreciation on Middle Market portfolio investments and marketable securities and idle funds investments, (iii) accounting reversals of net unrealized appreciation related to the net realized gains recognized during 2011 in the amounts of $2.8 million for portfolio investments and $0.4 million for marketable securities and idle funds investments, (iv) $6.3 million of net unrealized depreciation attributable to our SBIC debentures, and (v) $0.2 million in unrealized depreciation attributable to our investment in the affiliated Investment Manager. The noncontrolling interest of $1.1 million recognized during 2011 reflects the pro rata portion of MSC II net earnings attributable to the equity interests in MSC II not owned by Main Street. For the year ended December 31, 2011, we also recognized a net income tax provision of $6.3 million principally related to deferred taxes on net unrealized appreciation of certain portfolio investments held in our Taxable Subsidiaries.

        As a result of these events, our net increase in net assets resulting from operations attributable to common stock during 2011 was $63.0 million, or $2.76 per share, compared with a net increase in net assets resulting from operations attributable to common stock of $38.7 million, or $2.38 per share, in 2010.

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  Years Ended
December 31,
  Net Change  
 
  2010   2009   Amount   %  
 
  (dollars in millions)
 

Total investment income

  $ 36.5   $ 16.0   $ 20.5     128 %

Total expenses

    (17.2 )   (6.8 )   (10.4 )   154 %
                     

Net investment income

    19.3     9.2     10.1     109 %

Total net realized loss from investments

    (2.9 )   (7.8 )   4.9     NM  
                     

Net realized income

    16.4     1.4     15.0     1050 %

Net change in unrealized appreciation

    19.6     8.2     11.4     138 %

Income tax benefit (provision)

    (1.0 )   2.3     (3.3 )   (141 )%

Bargain purchase gain

    4.9         4.9     NM  

Noncontrolling interest

    (1.2 )       (1.2 )   NM  
                     

Net increase in net assets resulting from operations attributable to common stock

  $ 38.7   $ 11.9   $ 26.8     224 %
                     

 

 
  Years Ended
December 31,
  Net Change  
 
  2010   2009   Amount   %  
 
  (dollars in millions)
 

Net investment income

  $ 19.3   $ 9.2   $ 10.1     109 %

Share-based compensation expense

    1.4     1.1     0.3     39 %
                     

Distributable net investment income(a)

    20.7     10.3     10.4     102 %

Total net realized loss from investments

    (2.9 )   (7.8 )   4.9     NM  
                     

Distributable net realized income(a)

  $ 17.8   $ 2.5   $ 15.3     617 %
                     

Distributable net investment income per share—Basic and diluted(a)

  $ 1.25   $ 1.02   $ 0.23     22 %
                     

Distributable net realized income per share—Basic and diluted(a)

  $ 1.08   $ 0.25   $ 0.83     332 %
                     

(a)
Distributable net investment income and distributable net realized income are net investment income and net realized income, respectively, as determined in accordance with U.S. generally accepted accounting principles, or GAAP, excluding the impact of share-based compensation expense which is non-cash in nature. Main Street believes presenting distributable net investment income and distributable net realized income, and related per share amounts, is useful and appropriate supplemental disclosure of information for analyzing its financial performance since share-based compensation does not require settlement in cash. However, distributable net investment income and distributable net realized income are non-GAAP measures and should not be considered as a replacement to net investment income, net realized income, and other earnings measures presented in accordance with GAAP. Instead, distributable net investment income and distributable net realized income should be reviewed only in connection with such GAAP measures in analyzing Main Street's financial performance. A reconciliation of net investment income and net realized income in accordance with GAAP to distributable net investment income and distributable net realized income is presented in the table above.

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        For the year ended December 31, 2010, total investment income was $36.5 million, a $20.5 million, or 128%, increase over the $16.0 million of total investment income for the year ended December 31, 2009. This comparable period increase was principally attributable to (i) $13.1 million of total investment income from portfolio investments held by MSC II, (ii) a $6.7 million increase in interest income from higher average levels of both portfolio debt investments and interest-bearing marketable securities or idle funds investments, (iii) a $0.5 million increase in non-recurring interest income in the fourth quarter of 2010 due to higher levels of prepayment activity from our portfolio debt investments, and (iv) a $0.3 million increase in fee income due to higher levels of transaction activity, partially offset by a $0.1 million decrease in dividend income principally due to a $0.9 million special dividend from a portfolio company investment that was received in the third quarter of 2009.

        For the year ended December 31, 2010, total expenses increased by approximately $10.4 million, or 154%, to $17.2 million from $6.8 million for the year ended December 31, 2009. This comparable period increase in expenses was principally attributable to (i) $7.8 million in interest expense and other operating expenses related to MSC II subsequent to the Exchange Offer, (ii) higher share-based compensation expense of $0.3 million related to non-cash amortization for restricted share grants, (iii) higher interest expense of $0.7 million as a result of an additional $20.0 million in SBIC debentures issued through MSMF during 2010 and borrowings under our Credit Facility during the fourth quarter of 2010, and (iv) higher personnel costs and other operating expenses.

        Distributable net investment income for the year ended December 31, 2010 was $20.7 million, or a 102% increase, compared to distributable net investment income of $10.3 million during the year ended December 31, 2009. The increase in distributable net investment income was primarily due to higher levels of total investment income partially offset by higher interest and other operating expenses, due to the changes discussed above. Distributable net investment income on a per share basis for 2010 reflects a greater number of average shares outstanding compared to 2009 due to the January and August 2010 follow-on stock offerings, as well as the shares issued to consummate the Exchange Offer.

        Net investment income for the year ended December 31, 2010 was $19.3 million, or a 109% increase, compared to net investment income of $9.2 million during the year ended December 31, 2009. The increase in net investment income was principally attributable to the increase in total investment income, partially offset by higher interest and other operating expenses as discussed above.

        For the year ended December 31, 2010, the net realized loss from investments of $2.9 million was primarily attributable to (i) $4.0 million of realized loss on our debt and equity investment in one LMM portfolio company during the first quarter of 2010 and (ii) $1.9 million of realized loss on our debt and equity investment in one LMM portfolio company during the third quarter of 2010, partially offset by (i) $2.3 million of realized gain during the second quarter of 2010 on the partial exits of equity investments in two LMM portfolio companies and on the full exit of an equity investment in one LMM portfolio company and (ii) $0.7 million of net realized gain related to Middle Market and marketable securities and idle funds investments. The net realized loss of $7.8 million during the 2009 year related to realized losses recognized on the exit of our investments in two portfolio

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companies, partially offset by net realized gain on the partial exit of our equity investments in one portfolio company and net realized gain attributable to marketable securities investments.

        Distributable net realized income increased $15.3 million to $17.8 million, or $1.08 per share, for 2010 compared with distributable net realized income of $2.5 million, or $0.25 per share, in 2009 due to the higher levels of distributable net investment income as well as the change in total net realized loss from investments.

        The higher levels of net investment income for the year ended December 31, 2010, partially offset by the change in total net realized loss during that period, resulted in a $15.0 million increase in net realized income compared with 2009.

        For the year ended December 31, 2010, the $19.6 million net change in unrealized appreciation was principally attributable to (i) $2.8 million in accounting reversals of net unrealized depreciation attributable to the net realized loss recognized during 2010 as discussed above, (ii) unrealized appreciation on 19 LMM portfolio investments totaling $16.8 million, offset by unrealized depreciation on 15 LMM portfolio investments totaling $8.2 million, (iii) $6.9 million in unrealized appreciation attributable to our SBIC debentures, (iv) $1.6 million in net unrealized appreciation attributable to Middle Market portfolio investments and marketable securities and idle funds investments, and (v) $0.3 million in unrealized depreciation attributable to our investment in the affiliated Investment Manager. The noncontrolling interest of $1.2 million recognized during 2010 reflected the pro rata portion of MSC II net earnings attributable to the equity interests in MSC II not owned by Main Street. During the first quarter of 2010, we also recognized a $4.9 million bargain purchase gain related to the consummation of the Exchange Offer. The bargain purchase gain recognized during the first quarter of 2010 is a non-recurring gain which was solely generated by the acquisition accounting related to the Exchange Offer. For the year ended December 31, 2010, we also recognized a net income tax provision of $1.0 million principally related to deferred taxes on unrealized appreciation of equity investments held in our Taxable Subsidiaries.

        As a result of these events, our net increase in net assets resulting from operations attributable to common stock during 2010 was $38.7 million, or $2.38 per share, compared with a net increase in net assets resulting from operations attributable to common stock of $11.9 million, or $1.19 per share, in 2009.

        For the three months ended March 31, 2012, we experienced a net increase in cash and cash equivalents in the amount of $46.3 million. During that period, we generated $1.9 million of cash from our operating activities, primarily from (i) distributable net investment income, partially offset by (i) reimbursements to the Investment Manager to cover operating expenses under a support services agreement between MSCC and the Investment Manager, (ii) accretion of unearned income, and (iii) interest payments made on our SBIC debentures and Credit Facility. We generated $20.9 million in net cash from investing activities, principally including (i) $96.1 million in cash proceeds from the repayment of portfolio debt investments and from the exit of portfolio equity investments and (ii) $18.8 million of cash proceeds from the sale of marketable securities and idle funds investments, partially offset by (i) the funding of $88.4 million for new portfolio company investments and the funding of $5.6 million for marketable securities and idle funds investments. During the first three months of 2012, $23.5 million in cash was provided by financing activities, which principally consisted of $31.0 million in

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net cash proceeds from the Credit Facility, partially offset by $8.2 million in cash dividends paid to stockholders.

        For the three months ended March 31, 2011, we experienced a net increase in cash and cash equivalents in the amount of $6.7 million. During that period, we generated $4.1 million of cash from our operating activities, primarily from distributable net investment income partially offset by accretion of unearned income, increases in interest receivable, and semi-annual interest payments made on our SBIC debentures. We used $67.1 million in net cash from investing activities for the three months ended March 31, 2011, principally including the funding of $58.3 million for new portfolio company investments and the funding of $25.0 million for marketable securities and idle funds investments, partially offset by (i) $13.2 million of cash proceeds from the repayment of portfolio debt investments and (ii) $3.0 million from the sale of marketable securities and idle funds investments. For the first three months of 2011, $69.7 million in cash was provided by financing activities, which principally consisted of (i) $70.3 million in net cash proceeds from a public stock offering in March 2011 and (ii) $30.0 million in cash proceeds from the issuance of SBIC debentures, partially offset by (i) $24.0 million in net repayments under the Credit Facility, (ii) $4.7 million in cash dividends paid to stockholders, and (iii) $1.1 million in deferred loan costs paid in connection with the Credit Facility and the issuance of additional SBIC debentures.

        For the year ended December 31, 2011, we experienced a net increase in cash and cash equivalents in the amount of $20.3 million. During that period, we generated $37.2 million of cash from our operating activities, primarily from (i) distributable net investment income, (ii) increase in payables, and (iii) realized gains partially offset by (i) increases in interest receivable, (ii) accretion of unearned income, and (iii) non-cash interest and dividends. We used $220.5 million in net cash from investing activities, principally including the funding of $249.4 million for new portfolio company investments and the funding of $142.9 million for marketable securities and idle funds investments, partially offset by (i) $89.0 million of cash proceeds from the sale of marketable securities and idle funds investments and (ii) $83.0 million in cash proceeds from the repayment of portfolio debt investments and from the exit of portfolio equity investments. During 2011, $203.6 million in cash was provided by financing activities, which principally consisted of (i) $127.8 million in net cash proceeds from public stock offerings in March 2011 and October 2011, (ii) $40.0 million in cash proceeds from the issuance of SBIC debentures, and (iii) $68.0 million in net cash proceeds from the Credit Facility, partially offset by $28.3 million in cash dividends paid to stockholders and $2.3 million in loan costs associated with our SBIC debentures and Credit Facility.

        For the year ended December 31, 2010, we experienced a net decrease in cash and cash equivalents in the amount of $8.3 million. During that period, we generated $16.6 million of cash from our operating activities, primarily from distributable net investment income partially offset by (i) increases in interest receivable, (ii) accretion of unearned income, and (iii) non-cash interest and dividends. We used $176.0 million in net cash from investing activities, principally including the funding of $157.7 million for new portfolio company investments and the funding of $100.6 million for marketable securities and idle funds investments, partially offset by (i) $36.8 million of cash proceeds from the sale of marketable securities and idle funds investments, (ii) $43.0 million in cash proceeds from the repayment of portfolio debt investments and from the exit of portfolio equity investments, and (iii) $2.5 million in cash acquired as part of the Exchange Offer. During 2010, $151.1 million in cash was provided by financing activities, which principally consisted of (i) $85.9 million in net cash proceeds from public stock offerings in January 2010 and August 2010, (ii) $45.0 million in cash proceeds from the issuance of SBIC debentures, and (iii) $39 million in net cash proceeds from the Credit Facility, partially offset by $16.3 million in cash dividends paid to stockholders and $2.1 million in loan costs associated with our SBIC debentures and Credit Facility.

        For the year ended December 31, 2009, we experienced a net decrease in cash and cash equivalents in the amount of $4.8 million. During that period, we generated $8.0 million of cash from

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our operating activities, primarily from distributable net investment income partially offset by (i) decreases in accounts payable and (ii) non-cash interest and dividends. We used $26.0 million in net cash from investing activities, principally including the funding of $85.9 million for marketable securities and idle funds investments and the funding of $24.7 million for new portfolio company investments, partially offset by $73.5 million of cash proceeds from the sale of marketable securities and idle funds investments and $11.1 million in cash proceeds from the repayment of portfolio debt investments. During 2009, $13.2 million in cash was provided by financing activities, which principally consisted of $16.2 million in net cash proceeds from a June 2009 public stock offering and $9.6 million in net proceeds from the issuance of SBIC debentures, partially offset by $11.2 million in cash dividends and $1.6 million in purchases of shares of our common stock as part of our share repurchase program.

        As of March 31, 2012, we had $89.0 million in cash and cash equivalents and $14.3 million in marketable securities and idle funds investments, and our net asset value totaled $425.5 million, or $15.72 per share. In the second quarter of 2012, we expanded our credit facility (the "Credit Facility") from $235 million to $277.5 million. The $42.5 million increase in total commitments included commitment increases by three lenders currently participating in the Credit Facility. The amended Credit Facility contains an accordion feature that allows for a further increase in total commitments under the facility up to $350 million of total commitments from new and existing lenders on the same terms and conditions as the existing commitments. Borrowings under the Credit Facility bear interest, subject to our election, on a per annum basis equal to (i) the applicable LIBOR rate plus 2.50% or (ii) the applicable base rate plus 1.50%. We pay unused commitment fees of 0.375% per annum on the average unused lender commitments under the Credit Facility. The Credit Facility is secured by a first lien on the assets of MSCC and its subsidiaries, excluding the assets of the Funds. The Credit Facility contains certain affirmative and negative covenants, including but not limited to: (i) maintaining an interest coverage ratio of at least 2.0 to 1.0, (ii) maintaining an asset coverage ratio of at least 2.5 to 1.0, and (iii) maintaining a minimum tangible net worth. At March 31, 2012, we had $138.0 million in borrowings outstanding under the Credit Facility, bearing interest at an interest rate of 2.8%. As of March 31, 2012, we were in compliance with all financial covenants of the Credit Facility.

        In October 2011, we completed a follow-on public stock offering in which we sold 3,450,000 shares of common stock, including the underwriters' full exercise of the over-allotment option, at a price to the public of $17.50 per share (or approximately 123% of the then latest reported Net Asset Value per share), resulting in total net proceeds of approximately $57.5 million, after deducting underwriters' commissions and offering costs. In March 2011, we completed a follow-on public stock offering in which we sold 4,025,000 shares of common stock, including the underwriters' full exercise of the over-allotment option, at a price to the public of $18.35 per share (or approximately 141% of the then latest reported Net Asset Value per share), resulting in total net proceeds of approximately $70.3 million, after deducting underwriters' commissions and offering costs.

        Due to each of the Funds' status as a licensed SBIC, we have the ability to issue, through the Funds, debentures guaranteed by the SBA at favorable interest rates. Under the regulations applicable to SBIC funds, an SBIC can have outstanding debentures guaranteed by the SBA generally in an amount up to twice its regulatory capital, which effectively approximates the amount of its equity capital. Debentures guaranteed by the SBA have fixed interest rates that equal prevailing 10-year Treasury Note rates plus a market spread and have a maturity of ten years with interest payable semi-annually. The principal amount of the debentures is not required to be paid before maturity but may be pre-paid at any time. Debentures issued prior to September 2006 were subject to pre-payment penalties during their first five years. Those pre-payment penalties no longer apply to debentures issued after September 1, 2006. On March 31, 2012, we, through the Funds, had $220 million of outstanding indebtedness guaranteed by the SBA, which carried a weighted average annual fixed interest rate of

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approximately 5.1%. The first maturity related to the SBIC debentures does not occur until 2013, and the remaining weighted average duration is approximately 6.4 years as of March 31, 2012.

        We anticipate that we will continue to fund our investment activities through existing cash and cash equivalents, the liquidation of marketable securities and idle funds investments, and a combination of future debt and equity capital. Our primary uses of funds will be investments in portfolio companies, operating expenses and cash distributions to holders of our common stock.

        We periodically invest excess cash balances into marketable securities and idle funds investments. The primary investment objective of marketable securities and idle funds investments is to generate incremental cash returns on excess cash balances prior to utilizing those funds for investment in our LMM and Middle Market portfolio investment strategy. Marketable securities and idle funds investments generally consist of debt investments, independently rated debt investments, certificates of deposit with financial institutions, and diversified bond funds. The composition of marketable securities and idle funds investments will vary in a given period based upon, among other things, changes in market conditions, the underlying fundamentals in our marketable securities and idle funds investments, our outlook regarding future LMM and Middle Market portfolio investment needs, and any regulatory requirements applicable to Main Street.

        If our common stock trades below our net asset value per share, we will generally not be able to issue additional common stock at the market price unless our stockholders approve such a sale and our Board of Directors makes certain determinations. A proposal, approved by our stockholders at our June 2011 annual meeting of stockholders, authorizes us to sell shares of our common stock below the then current net asset value per share of our common stock in one or more offerings for a period of one year ending on June 14, 2012. We would need similar future approval from our stockholders to issue shares below the then current net asset value per share any time after the expiration of the current approval. We are seeking such approval for the next year at our 2012 annual stockholders meeting to be held on June 14, 2012.

        In order to satisfy the Code requirements applicable to a RIC, we intend to distribute to our stockholders substantially all of our taxable income, but we may also elect to periodically spillover certain excess undistributed taxable income from one tax year into the next tax year. In addition, as a BDC, we generally are required to meet a coverage ratio of total assets to total senior securities, which include borrowings and any preferred stock we may issue in the future, of at least 200%. This requirement limits the amount that we may borrow. In January 2008, we received an exemptive order from the SEC to exclude SBA-guaranteed debt securities issued by MSMF and any other wholly owned subsidiaries of ours which operate as SBICs from the asset coverage requirements of the 1940 Act as applicable to Main Street, which, in turn, enables us to fund more investments with debt capital.

        Although we have been able to secure access to additional liquidity, including recent public stock offerings, our expanded $277.5 million Credit Facility, and the increase in available leverage through the SBIC program, there is no assurance that debt or equity capital will be available to us in the future on favorable terms, or at all.

        In May 2011, the FASB issued Accounting Standards Update ("ASU") 2011-04, Fair Value Measurements (Topic 820), Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs ("ASU 2011-04"). ASU 2011-04 results in common fair value measurement and disclosure requirements in U.S. GAAP and IFRSs. ASU 2011-04 is effective for interim and annual reporting periods beginning after December 15, 2011. The adoption of ASU 2011-04 did not have a significant impact on Main Street's financial condition and results of operations.

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        In February 2011, the FASB issued ASU 2011-02, Receivables (Topic 310): A Creditor's Determination of Whether a Restructuring is a Troubled Debt Restructuring ("ASU 2011-02"). ASU 2011-02 clarifies which loan modifications constitute troubled debt restructurings. It is intended to assist creditors in determining whether a modification of the terms of a receivable meets the criteria to be considered a troubled debt restructuring, both for purposes of recording an impairment loss and for disclosure of troubled debt restructurings. In evaluating whether a restructuring constitutes a troubled debt restructuring, a creditor must separately conclude that both of the following exist: (a) the restructuring constitutes a concession; and (b) the debtor is experiencing financial difficulties. ASU 2011-02 provides guidance to clarify whether the creditor has granted a concession and whether a debtor is experiencing financial difficulties. The new guidance is effective for interim and annual periods beginning on or after June 15, 2011, and applies retrospectively to restructurings occurring on or after the beginning of the fiscal year of adoption. The adoption of ASU 2011-02 did not have a significant impact on Main Street's financial condition and results of operations.

        Inflation has not had a significant effect on our results of operations in any of the reporting periods presented herein. However, our portfolio companies have experienced, and may in the future experience, the impacts of inflation on their operating results, including periodic escalations in their costs for raw materials and required energy consumption.

        We may be a party to financial instruments with off-balance sheet risk in the normal course of business to meet the financial needs of our portfolio companies. These instruments include commitments to extend credit and involve, to varying degrees, elements of liquidity and credit risk in excess of the amount recognized in the balance sheet. At March 31, 2012, we had a total of $26.0 million in outstanding commitments comprised of (i) five commitments to fund revolving loans that had not been fully drawn and (ii) two capital commitments that had not been fully called.

        As of March 31, 2012, our future fixed commitments for cash payments in connection with our SBIC debentures for each of the next five years and thereafter are as follows:

 
  Total   2012   2013(1)   2014   2015   2016   2017 and
thereafter
 
 
  (dollars in thousands)
 

SBIC debentures

  $ 220,000   $   $ 4,000   $ 18,000   $ 23,100   $ 5,000   $ 169,900  

Interest due on SBIC debentures

    67,715     5,617     11,143     10,836     9,480     8,608     22,031  
                               

Total

  $ 287,715   $ 5,617   $ 15,143   $ 28,836   $ 32,580   $ 13,608   $ 191,931  
                               

(1)
Main Street has received a commitment from the SBA that will allow it to revolve the first $4.0 million debenture due in September 2013.

        As of March 31, 2012, we had $138.0 million in borrowings outstanding under our $235 million Credit Facility. Unless extended, the Credit Facility will mature in September 2014. The Credit Facility contains two, one year extension options which could extend the maturity to September 2016.

        MSCC is obligated to make payments under a support services agreement with the Investment Manager. The Investment Manager is reimbursed for its excess operating expenses associated with providing investment management and other services to MSCC and its subsidiaries, as well as third parties. Each quarter, as part of the support services agreement, MSCC makes payments to cover all

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cash operating expenses incurred by the Investment Manager, less the recurring management fees that the Investment Manager receives from MSC II pursuant to a long-term investment advisory services agreement and any other fees received from third parties for providing external services. For the three months ended March 31, 2012 and 2011, the expenses reimbursed by MSCC to the Investment Manager and management fees paid by MSC II were $2.7 million and $2.1 million, respectively.

        As discussed further in Note D to the accompanying consolidated financial statements, subsequent to the completion of the Formation Transactions, the Investment Manager is a wholly owned portfolio company of MSCC. At March 31, 2012, the Investment Manager had a receivable of $1.5 million due from MSCC related to operating expenses incurred by the Investment Manager required to support Main Street's business.


SENIOR SECURITIES

        Information about our senior securities is shown in the following table as of December 31 for the years indicated in the table, unless otherwise noted. Grant Thornton LLP's report on the senior securities table as of December 31, 2011, is attached as an exhibit to the registration statement of which this prospectus is a part.

Class and Year
  Total Amount
Outstanding
Exclusive of
Treasury
Securities(1)
  Asset
Coverage
per Unit(2)
  Involuntary
Liquidating
Preference
per Unit(3)
  Average
Market Value
per Unit(4)
 
 
  (dollars in
thousands)

   
   
   
 

Senior securities payable

                         

2006

  $ 45,100     1,959         N/A  

2007

    55,000     3,094         N/A  

2008

    55,000     3,043         N/A  

2009

    65,000     2,995         N/A  

2010

    219,000     2,030         N/A  

2011

    327,000     2,202         N/A  

2012 (as of March 31, 2012, unaudited)

    358,000     2,137         N/A  

(1)
Total amount of each class of senior securities outstanding at the end of the period presented.

(2)
Asset coverage per unit is the ratio of the carrying value of our total consolidated assets, less all liabilities and indebtedness not represented by senior securities, to the aggregate amount of senior securities representing indebtedness. Asset coverage per unit is expressed in terms of dollar amounts per $1,000 of indebtedness.

(3)
The amount to which such class of senior security would be entitled upon the involuntary liquidation of the issuer in preference to any security junior to it. The "—" indicates information which the Securities and Exchange Commission expressly does not require to be disclosed for certain types of senior securities.

(4)
Not applicable because senior securities are not registered for public trading.

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BUSINESS

        We are a principal investment firm primarily focused on providing customized debt and equity financing to lower middle market ("LMM") companies and debt capital to middle market ("Middle Market") companies. Our portfolio investments are typically made to support management buyouts, recapitalizations, growth financings, refinancings and acquisitions of companies that operate in diverse industry sectors. We seek to partner with entrepreneurs, business owners and management teams and generally provide "one stop" financing alternatives within our LMM portfolio. We invest primarily in secured debt instruments, equity investments, warrants and other securities of LMM companies based in the United States and in secured debt instruments of Middle Market companies generally headquartered in the United States. Our principal investment objective is to maximize our portfolio's total return by generating current income from our debt investments and capital appreciation from our equity and equity related investments, including warrants, convertible securities and other rights to acquire equity securities in a portfolio company. Our LMM companies generally have annual revenues between $10 million and $150 million, and our LMM portfolio investments generally range in size from $5 million to $25 million. Our Middle Market investments are made in businesses that are generally larger in size than our LMM portfolio companies and our Middle Market portfolio companies had weighted average annual revenues of $476 million as of March 31, 2012. Our other portfolio ("Other Portfolio") investments primarily consist of investments which are not consistent with the typical profiles for LMM and Middle Market portfolio investments, including investments which may be managed by third parties.

        We seek to fill the current financing gap for LMM businesses, which, historically, have had more limited access to financing from commercial banks and other traditional sources. The underserved nature of the lower middle market creates the opportunity for us to meet the financing needs of LMM companies while also negotiating favorable transaction terms and equity participations. Our ability to invest across a company's capital structure, from senior secured loans to equity securities, allows us to offer portfolio companies a comprehensive suite of financing solutions, or "one stop" financing. Providing customized, "one stop" financing solutions has become even more relevant to our LMM portfolio companies in the current investing environment. We generally seek to partner directly with entrepreneurs, management teams and business owners in making our investments. We believe that our LMM investment strategy has a lower correlation to the broader debt and equity markets.

        As of March 31, 2012, we had debt and equity investments in 53 LMM portfolio companies with an aggregate fair value of $388.1 million, with a total cost basis of approximately $322.3 million, and a weighted average annual effective yield on our LMM debt investments of approximately 14.9%. Approximately 77% of our total LMM portfolio investments at cost were in the form of debt investments and 98% of such debt investments at cost were secured by first priority liens on the assets of our LMM portfolio companies as of March 31, 2012. At March 31, 2012, we had equity ownership in approximately 92% of our LMM portfolio companies and the average fully diluted equity ownership in those portfolio companies was approximately 33%. As of December 31, 2011, we had debt and equity investments in 54 LMM portfolio companies with an aggregate fair value of $415.7 million with a total cost basis of approximately $349.0 million and a weighted average annual effective yield on our LMM debt investments of approximately 14.8%. The weighted average annual yields were computed using the effective interest rates for all debt investments as of March 31, 2012 and December 31, 2011, including amortization of deferred debt origination fees and accretion of original issue discount but excluding liquidation fees payable upon repayment and any debt investments on non-accrual status.

        In addition to our LMM investment strategy, we opportunistically pursue investments in Middle Market companies. Our Middle Market portfolio investments primarily consist of direct or secondary purchases of interest-bearing debt securities in companies that are generally larger in size than the LMM companies included in our LMM portfolio. Our Middle Market portfolio debt investments are

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generally secured by either a first or second priority lien on the assets of the company and have an expected duration of between three and five years.

        As of March 31, 2012, we had Middle Market portfolio investments in 62 companies collectively totaling approximately $251.0 million in fair value with a total cost basis of approximately $249.8 million. The weighted average revenues for the 62 Middle Market portfolio company investments were approximately $476 million. Our Middle Market debt investments are primarily in the form of debt investments and 86% of such debt investments at cost were secured by first priority liens on portfolio company assets as of March 31, 2012. The weighted average annual effective yield on our Middle Market portfolio debt investments was approximately 9.2% as of March 31, 2012. As of December 31, 2011, we had Middle Market portfolio investments in 57 companies collectively totaling approximately $226.5 million in fair value with a total cost basis of approximately $228.9 million. The weighted average revenues for the 57 Middle Market portfolio company investments were approximately $473 million. The weighted average annual effective yield on our Middle Market portfolio debt investments was approximately 9.5% as of December 31, 2011. The weighted average annual yields were computed using the effective interest rates for all debt investments as of March 31, 2012 and December 31, 2011, including amortization of deferred debt origination fees and accretion of original issue discount but excluding liquidation fees payable upon repayment.

        As of March 31, 2012, we had Other Portfolio investments in 4 companies collectively totaling approximately $25.1 million in both fair value and cost basis. As of December 31, 2011, we had Other Portfolio investments in 3 companies collectively totaling approximately $14.1 million in both fair value and cost basis.

        Our portfolio investments are generally made through MSCC and the Funds. MSCC and the Funds share the same investment strategies and criteria, although they are subject to different regulatory regimes (see "Regulation"). An investor's return in MSCC will depend, in part, on the Funds' investment returns as the Funds are wholly owned subsidiaries of MSCC.

        The level of new portfolio investment activity will fluctuate from period to period based upon our view of the current economic fundamentals, our ability to identify new investment opportunities that meet our investment criteria, and our ability to consummate the identified opportunities. The level of new investment activity, and associated interest and fee income, will directly impact future investment income. In addition, the level of dividends paid by portfolio companies and the portion of our portfolio debt investments on non-accrual status will directly impact future investment income. While we intend to grow our portfolio and our investment income over the long-term, our growth and our operating results may be more limited during depressed economic periods. However, we intend to appropriately manage our cost structure and liquidity position based on applicable economic conditions and our investment outlook. The level of realized gains or losses and unrealized appreciation or depreciation will also fluctuate depending upon portfolio activity and the performance of our individual portfolio companies. The changes in realized gains and losses and unrealized appreciation or depreciation could have a material impact on our operating results.

        MSCC and its consolidated subsidiaries are internally managed by the Investment Manager, a wholly owned subsidiary of MSCC, which employs all of the executive officers and other employees of Main Street. Because the Investment Manager is wholly owned by MSCC, MSCC does not pay any external investment advisory fees, but instead incurs the operating costs associated with employing investment and portfolio management professionals through the Investment Manager. We believe that our internally managed structure provides us with a beneficial operating expense structure when compared to other publicly-traded and privately-held investment firms which are externally managed, and our internally managed structure allows us the opportunity to leverage our non-interest operating expenses as we grow our investment portfolio. For the quarter ended March 31, 2012, the ratio of our total operating expenses, excluding interest expense, as a percentage of our quarterly average total

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assets was 2.0% on an annualized basis, compared to 2.5% on an annualized basis for the quarter ended March 31, 2011 and 2.2% for the year ended December 31, 2011.

Business Strategies

        Our principal investment objective is to maximize our portfolio's total return by generating current income from our debt investments and realizing capital appreciation from our equity and equity-related investments, including warrants, convertible securities and other rights to acquire equity securities in a portfolio company. We have adopted the following business strategies to achieve our investment objective:

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Investment Criteria

        Our investment team has identified the following investment criteria that it believes are important in evaluating prospective portfolio companies. Our investment team uses these criteria in evaluating investment opportunities. However, not all of these criteria have been, or will be, met in connection with each of our investments.

Portfolio Investments

        Main Street's portfolio investments, as used herein, refers to all of Main Street's LMM portfolio investments, Middle Market portfolio investments, and its investment in the Investment Manager and excludes all marketable securities and idle funds investments. Main Street's LMM portfolio investments principally consist of secured debt, equity warrants and direct equity investments in privately held LMM companies. Main Street's Middle Market portfolio investments consist of primarily debt investments in middle market businesses that are generally larger in size than the portfolio companies within the LMM portfolio.

        Historically, we have made LMM debt investments principally in the form of single tranche debt. Single tranche debt financing involves issuing one debt security that blends the risk and return profiles of both secured and subordinated debt. We believe that single tranche debt is more appropriate for many LMM companies given their size in order to reduce structural complexity and potential conflicts among creditors.

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        Our LMM debt investments generally have terms of three to seven years, with limited required amortization prior to maturity, and provide for monthly or quarterly payment of interest at fixed interest rates generally between 12% and 14% per annum, payable currently in cash. In some instances, we have provided floating interest rates for a portion of a single tranche debt security. In addition, certain LMM debt investments may have a form of interest that is not paid currently but is accrued and added to the loan balance and paid at maturity. We refer to this as payment-in-kind, or PIK, interest. We typically structure our LMM debt investments with the maximum seniority and collateral that we can reasonably obtain while seeking to achieve our total return target. In most cases, our LMM debt investment will be collateralized by a first priority lien on substantially all the assets of the portfolio company. As of March 31, 2012, 98% of our LMM debt investments at cost were secured by first priority liens on the assets of LMM portfolio companies.

        In addition to seeking a senior lien position in the capital structure of our LMM portfolio companies, we seek to limit the downside potential of our LMM investments by negotiating covenants that are designed to protect our LMM investments while affording our portfolio companies as much flexibility in managing their businesses as is reasonable. Such restrictions may include affirmative and negative covenants, default penalties, lien protection, change of control or change of management provisions, key-man life insurance, guarantees, equity pledges, personal guaranties, where appropriate, and put rights. In addition, we typically seek board representation or observation rights in all of our LMM portfolio companies.

        While we will continue to focus our LMM investments primarily on single tranche debt investments, we also anticipate structuring some of our debt investments as mezzanine loans. We anticipate that these mezzanine loans will be primarily junior secured or unsecured, subordinated loans that provide for relatively high fixed interest rates that will provide us with significant current interest income. These loans typically will have interest-only payments in the early years, with amortization of principal deferred to the later years of the mezzanine loan term. Typically, our mezzanine loans will have maturities of three to five years. We will generally target fixed interest rates of 12% to 14%, payable currently in cash for our mezzanine loan investments with higher targeted total returns from equity warrants, direct equity investments or PIK interest.

        In addition to our LMM debt investment strategy, we opportunistically pursue debt investments in Middle Market companies. Our Middle Market portfolio investments primarily consist of direct or secondary purchases of interest-bearing debt securities in companies that are generally larger in size than the LMM companies included in our LMM portfolio. The Middle Market debt investments generally have floating interest rates at LIBOR plus a premium and subject to LIBOR floors and a term of five to seven years. As of March 31, 2012, our Middle Market portfolio investments were primarily in the form of debt investments, all of which were secured by portfolio company assets, and with 86% of such debt investments at cost secured by first priority liens.

        In connection with our LMM debt investments, we have historically received equity warrants to establish or increase our equity interest in the LMM portfolio company. Warrants we receive in connection with a LMM debt investment typically require only a nominal cost to exercise, and thus, as a LMM portfolio company appreciates in value, we may achieve additional investment return from this equity interest. We typically structure the warrants to provide provisions protecting our rights as a minority-interest holder, as well as secured or unsecured put rights, or rights to sell such securities back to the LMM portfolio company, upon the occurrence of specified events. In certain cases, we also may obtain registration rights in connection with these equity interests, which may include demand and "piggyback" registration rights.

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        We also will seek to make direct equity investments in situations where it is appropriate to align our interests with key management and stockholders, and to allow for some participation in the appreciation in the equity values of our LMM portfolio companies. We usually make our direct equity investments in connection with debt investments. In addition, we may have both equity warrants and direct equity positions in some of our LMM portfolio companies. We seek to maintain fully diluted equity positions in our LMM portfolio companies of 5% to 50%, and may have controlling equity interests in some instances. We have a value orientation toward our direct equity investments and have traditionally been able to purchase our equity investments at reasonable valuations.

Investment Process

        Our investment committee is responsible for all aspects of our LMM investment process. The current members of our investment committee are Vincent D. Foster, our Chairman and Chief Executive Officer, Todd A. Reppert, our President, and David Magdol, our Chief Investment Officer and Senior Managing Director.

        Our credit committee is responsible for all aspects of our Middle Market portfolio investment process. The current members of our credit committee are Messrs. Foster and Reppert and Curtis Hartman, our Chief Credit Officer and Senior Managing Director.

        Our investment strategy involves a "team" approach, whereby potential transactions are screened by several members of our investment team before being presented to the investment committee or the credit committee, as applicable. Our investment committee and credit committee each meet on an as needed basis depending on transaction volume. We generally categorize our investment process into seven distinct stages:

        Deal generation and origination is maximized through long-standing and extensive relationships with industry contacts, brokers, commercial and investment bankers, entrepreneurs, services providers such as lawyers, financial advisors, and accountants, as well as current and former portfolio companies and investors. Our investment team has focused its deal generation and origination efforts on LMM and middle market companies. We have developed a reputation as a knowledgeable, reliable and active source of capital and assistance in this market.

        During the screening process, if a transaction initially meets our investment criteria, we will perform preliminary due diligence, taking into consideration some or all of the following information:

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        Upon successful screening of a proposed LMM transaction, the investment team makes a recommendation to our investment committee. If our investment committee concurs with moving forward on the proposed LMM transaction, we typically issue a non-binding term sheet to the company. For Middle Market portfolio investments, the initial term sheet is typically issued by the borrower, and is screened by the investment team which makes a recommendation to our credit committee.

        For proposed LMM transactions, the non-binding term sheet will include the key economic terms based upon our analysis performed during the screening process as well as a proposed timeline and our qualitative expectation for the transaction. While the term sheet is non-binding, for LMM investments, we typically receive an expense deposit in order to move the transaction to the due diligence phase. Upon execution of a term sheet we begin our formal due diligence process.

        For proposed Middle Market transactions, the internal term sheet will include key economic terms and other conditions proposed by the borrower and its representatives and the proposed timeline for the investment, which are reviewed by our investment team to determine if such terms and conditions are in agreement with Main Street's investment objectives.

        Due diligence on a proposed LMM investment is performed by a minimum of two of our investment professionals, whom we refer to collectively as the investment team, and certain external resources, who together conduct due diligence to understand the relationships among the prospective portfolio company's business plan, operations and financial performance. Our LMM due diligence review includes some or all of the following:

        Due diligence on a proposed Middle Market investment is generally performed on materials and information obtained from certain external resources and assessed internally by a minimum of two of our investment professionals, who work to understand the relationships among the prospective portfolio company's business plan, operations and financial performance using the accumulated due diligence information. Our Middle Market due diligence review includes some or all of the following:

        During the due diligence process, significant attention is given to sensitivity analyses and how the company might be expected to perform given downside, "base-case" and upside scenarios. In certain cases, we may decide not to make an investment based on the results of the diligence process.

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        Upon completion of a satisfactory due diligence review of a proposed LMM portfolio investment, the investment team presents the findings and a recommendation to our investment committee. The presentation contains information which can include, but is not limited to, the following:

        Upon completion of a satisfactory due diligence review of a proposed Middle Market portfolio investment, the investment team presents the findings and a recommendation to our credit committee. The presentation contains information which can include, but is not limited to, the following:

        If any adjustments to the transaction terms or structures are proposed by the investment committee or credit committee, as applicable, such changes are made and applicable analyses are updated. Approval for the transaction must be made by the affirmative vote from a majority of the members of the investment committee or credit committee, as applicable. Upon receipt of transaction approval, we will re-confirm regulatory compliance, process and finalize all required legal documents, and fund the investment.

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        We continuously monitor the status and progress of the portfolio companies. We generally offer managerial assistance to our portfolio companies, giving them access to our investment experience, direct industry expertise and contacts. The same investment team that was involved in the investment process will continue its involvement in the portfolio company post-investment. This provides for continuity of knowledge and allows the investment team to maintain a strong business relationship with key management of our portfolio companies for post-investment assistance and monitoring purposes. As part of the monitoring process of LMM portfolio investments, the investment team will analyze monthly and quarterly financial statements versus the previous periods and year, review financial projections, meet and discuss issues or opportunities with management, attend board meetings and review all compliance certificates and covenants. While we maintain limited involvement in the ordinary course operations of our LMM portfolio companies, we maintain a higher level of involvement in non-ordinary course financing or strategic activities and any non-performing scenarios. We also monitor the performance of our Middle Market portfolio investments; however, due to the larger size and sophistication of these middle market companies, it is not necessary or practical to have as much direct management interface.

        We use an internally developed investment rating system to characterize and monitor our expected level of returns on each of our investments.

        All new portfolio investments receive an initial 3 rating.

        The following table shows the distribution of our LMM portfolio investments on the 1 to 5 investment rating scale at fair value as of March 31, 2012 and December 31, 2011:

 
  March 31, 2012   December 31, 2011  
Investment Rating
  Investments at
Fair Value
  Percentage of
Total Portfolio
  Investments at
Fair Value
  Percentage of
Total Portfolio
 
 
  (Unaudited)
   
   
 
 
  (dollars in thousands)
 

1

  $ 133,057     34.4 % $ 125,505     30.2 %

2

    93,655     24.1 %   119,234     28.7 %

3

    143,766     37.0 %   152,910     36.7 %

4

    17,591     4.5 %   17,765     4.3 %

5

        0.0 %   250     0.1 %
                   

Totals

  $ 388,069     100.0 % $ 415,664     100.0 %
                   

        Based upon our investment rating system, the weighted average rating of our LMM portfolio was approximately 2.1 as of March 31, 2012 and 2.2 as of December 31, 2011.

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        For the total investment portfolio, as of March 31, 2012, we had no investments with positive fair value on non-accrual status and two fully impaired investments which comprised approximately 0.9% of the total portfolio investments at cost on non-accrual status, excluding the investment in the affiliated Investment Manager. As of December 31, 2011, we had one investment with positive fair value on non-accrual status, which comprised less than 0.1% of the total portfolio investments at fair value and, together with another fully impaired investment, comprised 0.9% of the total portfolio investments at cost, in each case excluding the investment in the affiliated Investment Manager.

        While we generally exit most investments through the refinancing or repayment of our debt and redemption of our equity positions, we typically assist our LMM portfolio companies in developing and planning exit opportunities, including any sale or merger of our portfolio companies. We may also assist in the structure, timing, execution and transition of the exit strategy. The refinancing or repayment of Middle Market debt investments typically does not require our assistance due to the additional resources available to these larger, middle market companies.

Determination of Net Asset Value and Portfolio Valuation Process

        We determine the net asset value per share of our common stock on a quarterly basis. The net asset value per share is equal to our total assets minus liabilities and any noncontrolling interests outstanding divided by the total number of shares of common stock outstanding.

        Our business plan calls for us to invest primarily in illiquid securities issued by private, LMM companies as well as Middle Market debt securities issued by middle market companies that are generally larger in size than the LMM companies. These portfolio investments may be subject to restrictions on resale and will generally have no established trading market. As a result, we determine in good faith the fair value of our portfolio investments pursuant to a valuation policy in accordance with the Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("Codification" or "ASC") 820, Fair Value Measurements and Disclosures ("ASC 820") and a valuation process approved by our Board of Directors and in accordance with the 1940 Act. We review external events, including private mergers, sales and acquisitions involving comparable companies, and include these events in the valuation process. Our valuation policy is intended to provide a consistent basis for determining the fair value of the portfolio.

        For valuation purposes, control investments are composed of equity and debt securities for which we have a controlling interest in the portfolio company or have the ability to nominate a majority of the portfolio company's board of directors. Market quotations are generally not readily available for our control investments. As a result, we determine the fair value of control investments using a combination of market and income approaches. Under the market approach, we will typically use the enterprise value methodology to determine the fair value of these investments. The enterprise value is the fair value at which an enterprise could be sold in a transaction between two willing parties, other than through a forced or liquidation sale. Typically, private companies are bought and sold based on multiples of earnings before interest, taxes, depreciation and amortization, or EBITDA, cash flows, net income, revenues, or in limited cases, book value. There is no single methodology for estimating enterprise value. For any one portfolio company, enterprise value is generally described as a range of values from which a single estimate of enterprise value is derived. In estimating the enterprise value of a portfolio company, we analyze various factors, including the portfolio company's historical and projected financial results. We allocate the enterprise value to investments in order of the legal priority of the investments. We will also use the income approach to determine the fair value of these securities, based on projections of the discounted future free cash flows that the portfolio company or the debt security will likely generate. The valuation approaches for our control investments estimate the value of the investment if we were to sell, or exit, the investment. In addition, these valuation

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approaches consider the value associated with our ability to control the capital structure of the portfolio company, as well as the timing of a potential exit.

        For valuation purposes, non-control LMM investments are composed of debt and equity securities for which we do not have a controlling interest in the portfolio company, or the ability to nominate a majority of the portfolio company's board of directors. Market quotations for our non-control LMM investments are generally not readily available. For our non-control LMM investments, we use a combination of the market and income approaches to value our equity investments and the income approach to value our debt instruments. For non-control LMM debt investments, we determine the fair value primarily using a yield approach that analyzes the discounted cash flows of interest and principal for the debt security, as set forth in the associated loan agreements, as well as the financial position and credit risk of each of these portfolio investments. Our estimate of the expected repayment date of an LMM debt security is generally the legal maturity date of the instrument, as we generally intend to hold our loans to maturity. The yield analysis considers changes in leverage levels, credit quality, portfolio company performance and other factors. We will use the value determined by the yield analysis as the fair value for that security; however, because of our general intent to hold our loans to maturity, the fair value will not exceed the face amount of the LMM debt security. A change in the assumptions that we use to estimate the fair value of our LMM debt securities using the yield analysis could have a material impact on the determination of fair value. If there is deterioration in credit quality or if an LMM debt security is in workout status, we may consider other factors in determining the fair value of the LMM debt security, including the value attributable to the debt security from the enterprise value of the portfolio company or the proceeds that would most likely be received in a liquidation analysis.

        For valuation purposes, all of our Middle Market portfolio investments are non-control investments and are composed of direct or secondary purchases of interest-bearing securities for which we do not have a controlling interest in the portfolio company, or the ability to nominate a majority of the portfolio company's board of directors. We primarily use observable inputs to determine the fair value of these investments through obtaining third party quotes or other independent pricing.

        Due to the inherent uncertainty in the valuation process, our determination of fair value for our LMM investments may differ materially from the values that would have been used had a ready market for the securities existed. In addition, changes in the market environment, portfolio company performance and other events that may occur over the lives of the investments may cause the gains or losses ultimately realized on these investments to be materially different than the valuations currently assigned. We determine the fair value of each individual investment and record changes in fair value as unrealized appreciation or depreciation.

        As described below, we undertake a multi-step valuation process each quarter in connection with determining the fair value of our investments, with our Board of Directors having final responsibility for overseeing, reviewing and approving, in good faith, our determination of the fair value of each individual investment.

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        As part of the internal valuation process, in determining fair value for LMM portfolio companies, Main Street, among other things, consults with a nationally recognized independent advisor. The nationally recognized independent advisor is generally consulted relative to each LMM portfolio investment at least once in every calendar year, and for new LMM portfolio companies, at least once in the twelve-month period subsequent to the initial investment. In certain instances, Main Street may determine that it is not cost-effective, and as a result is not in its stockholders' best interest, to consult with the nationally recognized independent advisor on one or more LMM portfolio companies. Such instances include, but are not limited to, situations where the fair value of Main Street's investment in a LMM portfolio company is determined to be insignificant relative to the total investment portfolio. Main Street consulted with its independent advisor in arriving at Main Street's determination of fair value on a total of 12 LMM portfolio companies for the three months ended March 31, 2012, representing approximately 22% of the total LMM portfolio and investment in the affiliated Investment Manager at fair value as of March 31, 2012. Main Street consulted with its independent advisor in arriving at Main Street's determination of fair value on a total of 42 portfolio companies, including 41 LMM portfolio companies and our affiliated Investment Manager, for the year ended December 31, 2011, representing approximately 81% of the total LMM portfolio and investment in the affiliated Investment Manager at fair value as of December 31, 2011. The Board of Directors of Main Street has the final responsibility for reviewing and approving, in good faith, Main Street's determination of the fair value for the investments.

        Determination of fair value involves subjective judgments and estimates. The notes to our financial statements will refer to the uncertainty with respect to the possible effect of such valuations, and any change in such valuations, on our financial statements.

Competition

        We compete for investments with a number of investment funds (including private equity funds, mezzanine funds, BDCs, and SBICs), as well as traditional financial services companies such as commercial banks and other sources of financing. Many of the entities that compete with us have greater financial and managerial resources. We believe we are able to be competitive with these entities primarily on the basis of our focus toward the underserved lower middle market, the experience and contacts of our management team, our responsive and efficient investment analysis and decision-making processes, our comprehensive suite of customized financing solutions and the investment terms we offer.

        We believe that some of our competitors make senior secured loans, junior secured loans and subordinated debt investments with interest rates and returns that are comparable to or lower than the rates and returns that we target. Therefore, we do not seek to compete primarily on the interest rates and returns that we offer to potential portfolio companies. For additional information concerning the competitive risks we face, see "Risk Factors—Risks Related to Our Business and Structure—We may face increasing competition for investment opportunities."

Employees

        As of March 31, 2012, we had 23 employees, each of whom was employed by the Investment Manager. These employees include investment and portfolio management professionals, operations

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professionals and administrative staff. As necessary, we will hire additional investment professionals and administrative personnel. All of our employees are located in our Houston, Texas office.

Properties

        We do not own any real estate or other physical properties materially important to our operations. Currently, we lease office space in Houston, Texas for our corporate headquarters.

Legal Proceedings

        We may, from time to time, be involved in litigation arising out of our operations in the normal course of business or otherwise. Furthermore, third parties may try to seek to impose liability on us in connection with the activities of our portfolio companies. While the outcome of any current legal proceedings cannot at this time be predicted with certainty, we do not expect any current matters will materially affect our financial condition or results of operations; however, there can be no assurance whether any pending legal proceedings will have a material adverse effect on our financial condition or results of operations in any future reporting period.

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PORTFOLIO COMPANIES

        The following table sets forth certain unaudited information as of March 31, 2012, for the portfolio companies in which we had a debt or equity investment. Other than these investments, our only formal relationships with our portfolio companies are the managerial assistance ancillary to our investments and the board observer or participation rights we may receive. As of March 31, 2012, none of our portfolio company investments constituted five percent or more of our total assets. The following table excludes our investment in the Investment Manager and marketable securities and idle funds investments.

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Control Investments(3)

                           

Café Brazil, LLC
202 West Main Street, Ste. 100
Allen, TX 75013

 

Casual Restaurant
Group

                       

     

12% Secured Debt (Maturity—April 20, 2013)

    1,200     1,199     1,200  

     

Member Units (Fully diluted 41.0%)(7)

          42     3,430  
                         

                  1,241     4,630  

California Healthcare Medical Billing, Inc.
1121 E. Washington Ave.
Escondido, CA 92025

 

Healthcare Services

                       

     

12% Secured Debt (Maturity—October 17, 2015)

    8,853     8,538     8,761  

     

Warrants (Fully diluted 21.0%)

          1,193     3,380  

     

Common Stock (Fully diluted 9.6%)

          1,177     1,560  
                         

                  10,908     13,701  

CBT Nuggets, LLC
44 Club Rd., Ste. 150
Eugene, OR 97401

 

Produces and Sells IT
Training Certification
Videos

                       

     

14% Secured Debt (Maturity—December 31, 2013)

    850     850     850  

     

Member Units (Fully diluted 40.8%)(7)

          1,300     6,360  
                         

                  2,150     7,210  

Ceres Management, LLC (Lambs)
11675 Jollyville Rd., Ste. 300
Austin, TX 78759

 

Aftermarket Automotive
Services Chain

                       

     

14% Secured Debt (Maturity—May 31, 2013)

    4,000     3,982     3,982  

     

9.5% Secured Debt (Lamb's Real Estate
Investment I, LLC) (Maturity—October 1, 2025)

    1,102     1,102     1,102  

     

Member Units (Fully diluted 79.0%)

          5,273     540  

     

Member Units (Lamb's Real Estate
Investment I, LLC) (Fully diluted 100%)

          625     800  
                         

                  10,982     6,424  

Condit Exhibits, LLC
500 West Tennessee
Denver, CO 80223

 

Tradeshow Exhibits /
Custom Displays

                       

     

9% Current / 9% PIK Secured Debt
(Maturity—July 1, 2013)

    4,661     4,639     4,639  

     

Warrants (Fully diluted 47.9%)

          320     560  
                         

                  4,959     5,199  

Gulf Manufacturing, LLC
1221 Indiana St.
Humble, TX 77396

 

Industrial Metal Fabrication

                       

     

9% PIK Secured Debt (Maturity—June 30, 2017)

    1,044     1,044     1,044  

     

Member Units (Fully diluted 34.2%)(7)

          2,980     11,240  
                         

                  4,024     12,284  

Harrison Hydra-Gen, Ltd.
10827 Tower Oaks Blvd.
Houston, TX 77070

 

Manufacturer of
Hydraulic Generators

                       

     

12% Secured Debt (Maturity—June 4, 2015)

    5,024     4,554     4,746  

     

Preferred Stock (8% cumulative)(7)

          1,103     1,103  

     

Common Equity (Fully diluted 34.5%)

          718     2,620  
                         

                  6,375     8,469  

Hawthorne Customs and Dispatch Services, LLC
9370 Wallisville Rd
Houston, TX 77013

 

Transportation /
Logistics

                       

     

Member Units (Fully diluted 47.6%)(7)

          589     1,410  

     

Member Units (Wallisville Real Estate, LLC)
(Fullydiluted 59.1%)(7)

          1,215     1,215  
                         

                  1,804     2,625  

78


Table of Contents

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Control Investments(3)

                           

Hydratec, Inc.
325 Road 192
Delano, CA 93215

 

Designer and Installer of
Micro-Irrigation Systems

                       

     

Common Stock (Fully diluted 92.5%)(7)

          7,092     13,241  

Indianapolis Aviation Partners, LLC
8501 Telephone Road
Houston, TX 77061

 

Fixed Base Operator

                       

     

12% Secured Debt (Maturity—September 15, 2014)

    4,500     4,253     4,350  

     

Warrants (Fully diluted 30.1%)

          1,129     1,650  
                         

                  5,382     6,000  

Jensen Jewelers of Idaho, LLC
130 Second Avenue North
Twin Falls, ID 83301

 

Retail Jewelry Store

                       

     

Prime Plus 2%, Current Coupon 5.25%, Secured Debt
(Maturity—November 14, 2013)(8)

    2,260     2,260     2,260  

     

13% Current / 6% PIK Secured Debt
(Maturity—November 14, 2013)

    2,345     2,345     2,345  

     

Member Units (Fully diluted 60.8%)(7)

          811     1,750  
                         

                  5,416     6,355  

Lighting Unlimited, LLC
4125 Richmond Ave
Houston, TX 77027

 

Commercial and
Residential Lighting
Products and Design
Services

                       

     

8% Secured Debt (Maturity—August 22, 2012)

    2,000     1,990     1,990  

     

Preferred Stock (non-voting)

          510     510  

     

Warrants (Fully diluted 7.1%)

          54     60  

     

Common Stock (Fully diluted 70.0%)

          100     580  
                         

                  2,654     3,140  

Mid-Columbia Lumber Products, LLC
380 NW Adler St
Madras, OR 97741

 

Manufacturer of Finger-
Jointed Lumber
Products

                       

     

10% Secured Debt (Maturity—December 18, 2014)

    1,250     1,250     1,250  

     

12% Secured Debt (Maturity—December 18, 2014)

    3,900     3,900     3,900  

     

9.5% Secured Debt (Mid-Columbia Real Estate, LLC) (Maturity—May 13, 2025)

    1,051     1,051     1,051  

     

Warrants (Fully diluted 9.2%)

          250     890  

     

Member Units (Fully diluted 42.9%)

          812     930  

     

Member Units (Mid—Columbia Real Estate, LLC) (Fully diluted 50.0%)(7)

          250     810  
                         

                  7,513     8,831  

NAPCO Precast, LLC
6949 Low Bid Lane
San Antonio, TX 78250

 

Precast Concrete
Manufacturing

                       

     

Prime Plus 2%, Current Coupon 9%, Secured Debt (Maturity—February 1, 2013)(8)

    3,385     3,378     3,378  

     

18% Secured Debt (Maturity—February 1, 2013)

    5,173     5,149     5,149  

     

Member Units (Fully diluted 46.3%) (7)

          2,975     4,195  
                         

                  11,502     12,722  

NRI Clinical Research, LLC
2010 Wilshire Blvd
Los Angeles, CA 90057

 

Clinical Research Center

                       

     

14% Secured Debt (Maturity—September 8, 2016)

    5,265     4,973     4,973  

     

Warrants (Fully diluted 12.5%)

          252     390  

     

Member Units (Fully diluted 24.8%)

          500     770  
                         

                  5,725     6,133  

NRP Jones, LLC
210 Philadelphia St
LaPorte, IN 46350

 

Manufacturer of
Hoses, Fittings and
Assemblies

                       

     

12% Secured Debt (Maturity—December 22, 2016)

    12,100     11,079     11,079  

     

Warrants (Fully diluted 12.2%)

          817     817  

     

Member Units (Fully diluted 43.2%)

          2,900     2,900  
                         

                  14,796     14,796  

OMi Holdings, Inc.
1515 E I-30 Service Road
Royse City, TX 75189

 

Manufacturer of
Overhead Cranes

                       

     

12% Secured Debt (Maturity—April 1, 2013)

    7,618     7,600     7,600  

     

Common Stock (Fully diluted 48.0%)

          1,080     3,550  
                         

                  8,680     11,150  

Pegasus Research Group, LLC (Televerde)
4636 E. University Drive
Phoenix, AZ 77074

 

Telemarketing and
Data Services

                       

     

13% Current / 5% PIK Secured Debt (Maturity—January 6, 2016)

    5,691     5,630     5,630  

     

Member Units (Fully diluted 43.7%)

          1,250     1,250  
                         

                  6,880     6,880  

79


Table of Contents

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Control Investments(3)

                           

PPL RVs, Inc.
10777 Southwest Freeway
Houston, TX 77074

 

Recreational Vehicle
Dealer

                       

     

18% Secured Debt (Maturity—June 10, 2015)

    4,450     4,404     4,450  

     

Common Stock (Fully diluted 51.1%)

          2,150     3,980  
                         

                  6,554     8,430  

Principle Environmental, LLC
201 W. Ranch Court
Weatherford, TX 76088

 

Noise Abatement
Services

                       

     

12% Secured Debt (Maturity—February 1, 2016)

    4,750     3,808     4,080  

     

12% Current / 2% PIK Secured Debt (Maturity—February 1, 2016)

    3,525     3,470     3,525  

     

Warrants (Fully diluted 14.6%)

          1,200     2,630  

     

Member Units (Fully diluted 25.0%)

          2,000     4,510  
                         

                  10,478     14,745  

River Aggregates, LLC
25963 Sorters Road
Porter, TX 77365

 

Processor of
Construction Aggregates

                       

     

12% Secured Debt (Maturity—March 30, 2016)

    3,700     3,468     3,468  

     

Warrants (Fully diluted 20.0%)

          202     100  

     

Member Units (Fully diluted 40.0%)

          550     200  
                         

                  4,220     3,768  

The MPI Group, LLC
319 North Hills Road
Corbin, KY 40701

 

Manufacturer of Custom
Hollow Metal Doors,
Frames and Accessories

                       

     

4.5% Current / 4.5% PIK Secured Debt (Maturity—October 2, 2013)

    1,056     1,053     1,053  

     

6% Current / 6% PIK Secured Debt (Maturity—October 2, 2013)

    5,482     5,384     5,384  

     

Warrants (Fully diluted 47.1%)

          896      

     

Member Units (Non-voting)

          200      
                         

                  7,533     6,437  

Thermal and Mechanical Equipment, LLC
1423 E. Richey Road
Houston, TX 77073

 

Commercial and
Industrial Engineering
Services

                       

     

Prime Plus 2%, Current Coupon 9%, Secured Debt (Maturity—September 25, 2014)(8)

    1,272     1,267     1,267  

     

13% Current / 5% PIK Secured Debt (Maturity—September 25, 2014)

    4,053     4,013     4,053  

     

Member Units (Fully diluted 50.0%)(7)

          1,000     6,090  
                         

                  6,280     11,410  

Uvalco Supply, LLC
2521 E. Main St.
Uvalde, TX 78801

 

Farm and Ranch Supply
Store

                       

     

Member Units (Fully diluted 42.8%) (7)

          1,113     3,110  

Van Gilder Insurance Corporation
1515 Wynkoop, Ste. 200
Denver, CO 80202

 

Insurance Brokerage

                       

     

8% Secured Debt (Maturity—January 31, 2013)

    1,000     990     990  

     

8% Secured Debt (Maturity—January 31, 2016)

    1,634     1,619     1,619  

     

13% Secured Debt (Maturity—January 31, 2016)

    5,400     4,430     4,430  

     

Warrants (Fully diluted 10.0%)

          1,209     1,209  

     

Common Stock (Fully diluted 15.5%)

          2,500     2,500  
                         

                  10,748     10,748  

Vision Interests, Inc.
6630 Arroyo Springs St., Ste. 600
Las Vegas, NV 89113

 

Manufacturer / Installer
of Commercial Signage

                       

     

6.5% Current /6.5% PIK Secured Debt (Maturity—December 23, 2016)

    3,051     2,986     2,986  

     

Series A Preferred Stock (Fully diluted 33.3%)

          3,000     3,000  

     

Common Stock (Fully diluted 36.7%)

          3,706      
                         

                  9,692     5,986  

Ziegler's NYPD, LLC
13901 North 73rd St., #219
Scottsdale, AZ 85260

 

Casual Restaurant
Group

                       

     

Prime Plus 2%, Current Coupon 9%, Secured Debt (Maturity—October 1, 2013)(8)

    1,000     996     996  

     

13% Current / 5% PIK Secured Debt (Maturity—October 1, 2013)

    4,353     4,328     4,328  

     

Warrants (Fully diluted 46.6%)

          600     300  
                         

                  5,924     5,624  
                         

Subtotal Control Investments

                  180,625     220,048  
                         

80


Table of Contents

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Affiliate Investments(4)

                           

American Sensor Technologies, Inc.
450 Clark Dr.
Mt. Olive, NJ 07828

 

Manufacturer of
Commercial / Industrial
Sensors

                       

     

Warrants (Fully diluted 19.6%)

          50     3,370  

Compact Power Equipment Centers LLC
P. O. Box 40
Fort Mill, SC 29716

 

Equipment / Tool Rental

                       

     

6% Current / 6% PIK Secured Debt (Maturity—December 31, 2014)

    3,523     3,500     3,500  

     

8% PIK Secured Debt (Maturity—December 31, 2012)

    99     99     99  

     

Series A Member Units (8% cumulative)(7)

          870     870  

     

Member Units (Fully diluted 10.6%)

          1     1  
                         

                  4,470     4,470  

Drilling Info, Inc.
2600 Via Fortuna, Fifth Floor
Austin, TX 78746

 

Information Services for
the Oil and Gas
Industry

                       

     

Common Stock (Fully diluted 2.4%)

          1,335     5,070  

East Teak Fine Hardwoods, Inc.
1106 Drake Road
Donalds, SC 29638

 

Hardwood Products

                       

     

Common Stock (Fully diluted 5.0%)

          480     380  

Gault Financial, LLC (RMB Capital, LLC)
409 Bearden Circle
Knoxville, TN 37919

 

Purchases and Manages
Liquidation of
Distressed Assets

                       

     

14% Secured Debt (Maturity—November 21, 2016)

    10,500     9,918     9,918  

     

Warrants (Fully diluted 22.5%)

          400     400  
                         

                  10,318     10,318  

Houston Plating and Coatings, LLC
1315 Georgia St
South Houston, TX 77587

 

Plating and Industrial
Coating Services

                       

     

Member Units (Fully diluted 11.1%)(7)

          635     6,300  

Integrated Printing Solutions, LLC
7025 South Fulton Street, Suite 100
Centennial, CO 80112

 

Specialty Card Printing

                       

     

13% Secured Debt (Maturity—September 23, 2016)

    12,500     11,707     11,707  

     

Warrants (Fully diluted 9.0%)

          600     940  
                         

                  12,307     12,647  

IRTH Holdings, LLC
5009 Horizons Drive
Columbus, OH 43220

 

Damage Prevention
Technology Information
Services

                       

     

12% Secured Debt (Maturity—December 29, 2015)

    4,873     4,802     4,873  

     

Member Units (Fully diluted 22.3%)

          850     2,720  
                         

                  5,652     7,593  

KBK Industries, LLC
East Hwy 96
Rush Center, KS 67575

 

Specialty Manufacturer
of Oilfield and
Industrial Products

                       

     

10% Secured Debt (Maturity—December 31, 2012)

    458     458     458  

     

14% Secured Debt (Maturity—January 23, 2014)

    5,182     5,182     5,182  

     

Member Units (Fully diluted 18.8%)(7)

          341     3,190  
                         

                  5,981     8,830  

Laurus Healthcare, LP
10000 Memorial Drive, Suite 540
Houston, TX 77056

 

Management of
Outpatient
Cardiac Cath Labs

                       

     

9% Secured Debt (Maturity—May 12, 2016)

    5,800     5,800     5,800  

     

Class A and C Units (Fully diluted 13.1%)(7)

          80     5,430  
                         

                  5,880     11,230  

Olympus Building Services, Inc.
Union Square Drive, Suite 110
New Hope, PA 18938

 

Custodial / Facilities
Services

                       

     

10% Current / 2% PIK Secured Debt (Maturity—March 27, 2014)

    2,446     2,330     2,330  

     

15% PIK Secured Debt (Maturity—March 27, 2014)

    1,031     1,031     1,031  

     

Warrants (Fully diluted 22.5%)

          470     70  
                         

                  3,831     3,431  

OnAsset Intelligence, Inc.
3080 Story Road West
Irving, TX 75038

 

Transportation
Monitoring / Tracking
Services

                       

     

12% Secured Debt (Maturity—October 18, 2012)

    1,500     1,057     1,057  

     

Preferred Stock (7% cumulative) (Fully diluted 5.75%)(7)

          1,604     1,604  

     

Warrants (Fully diluted 4.0%)

          830     640  
                         

                  3,491     3,301  

81


Table of Contents

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Affiliate Investments(4)

                           

OPI International Ltd.(11)
4545 Post Oak Place Drive
Houston, TX 77027

 

Oil and Gas
Construction Services

                       

     

12% Secured Debt (Maturity—November 30, 2015)

    11,750     11,132     11,360  

     

Common Equity (Fully diluted 9.7%)

          1,370     4,970  
                         

                  12,502     16,330  

Radial Drilling Services Inc.
4921 Spring Cypress
Spring, TX 77379

 

Oil and Gas Technology

                       

     

12% Secured Debt (Maturity—November 23, 2016)

    4,200     3,394     3,394  

     

Warrants (Fully diluted 24.0%)

          758     758  
                         

                  4,152     4,152  

Samba Holdings, Inc.
1730 Montano Road NW, Suite F
Albuquerque, NM 87107

 

Intelligent Driver
Record Monitoring
Software and Services

                       

     

12.5% Secured Debt (Maturity—November 17, 2016)

    3,000     2,943     2,943  

     

Common Stock (Fully diluted 14.7%)

          950     950  
                         

                  3,893     3,893  

Schneider Sales Management, LLC
5340 S Quebec St., Ste. 265N
Greenwood Village, CO 8011
1

 

Sales Consulting and
Training

                       

     

13% Secured Debt (Maturity—October 15, 2013)

    3,568     3,489      

     

Warrants (Fully diluted 20.0%)

          45      
                         

                  3,534      

Spectrio LLC
720 Brooker Creek Blvd., Ste. 215
Oldsmar, FL 34677

 

Audio Messaging
Services

                       

     

8% Secured Debt (Maturity—June 16, 2016)

    280     280     280  

     

12% Secured Debt (Maturity—June 16, 2016)

    13,475     13,029     13,343  

     

Warrants (Fully diluted 9.8%)

          887     2,830  
                         

                  14,196     16,453  

SYNEO, LLC
3601 Galaznik Rd
Angleton, TX 77515

 

Manufacturer of
Specialty Cutting Tools
and Punches

                       

     

12% Secured Debt (Maturity—July 13, 2016)

    5,500     5,379     5,379  

     

10% Secured Debt (Leadrock Properties, LLC) (Maturity—May 4, 2026)

    1,440     1,412     1,412  

     

Member Units (Fully diluted 11.1%)

          1,000     1,000  
                         

                  7,791     7,791  

Walden Smokey Point, Inc.
17305 59th Avenue NE
Arlington, WA 98223

 

Specialty Transportation
Provider

                       

     

Common Stock (Fully diluted 12.6%)

          1,427     4,510  

WorldCall, Inc.
1250 Capital of Texas Hwy., Bldg 2, Ste. 235
Austin, TX 78746

 

Telecommunication /
Information Services

                       

     

13% Secured Debt (Maturity—April 22, 2012)

    646     646     646  

     

Common Stock (Fully diluted 10.0%)

          297      
                         

                  943     646  
                         

Subtotal Affiliate Investments

                  102,868     130,715  

                       

82


Table of Contents

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Non-Control/Non-Affiliate Investments(5)

                           

Academy, Ltd.(9)
1800 N. Mason Road
Katy, TX 77449

 

Sporting Goods Stores

                       

     

LIBOR Plus 4.50%, Current Coupon 6.00%, Secured Debt (Maturity—August 3, 2018)(8)

    2,993     2,981     3,010  

Affinity Videonet, Inc.
1625 Broadway Ave., Ste. 880
Denver, Co 80202

 

Video Conferencing and
Managed Services

                       

     

13% Secured Debt (Maturity—December 31, 2015)

    2,000     1,917     2,000  

     

13% Current / 1% PIK Secured Debt (Maturity—December 31, 2015)

    1,012     1,007     1,007  

     

Warrants (Fully diluted 2.6%)

          63     120  
                         

                  2,987     3,127  

Ameritech College Operations, LLC
12257 Business Park Dr, Ste. 108
Draper, UT 84020

 

Education Services

                       

     

18% Secured Debt (Maturity—March 9, 2017)

    6,800     6,665     6,665  

API Technologies Corp.(9)
4705 S. Apopka Vineland Road, Suite 210
Orlando, FL 32819

 

Manufacturer of
Electrical Components
and Equipment

                       

     

LIBOR Plus 6.25%, Current Coupon 7.75%, Secured Debt (Maturity—June 27, 2016)(8)

    2,480     2,403     2,480  

Aspen Dental Management, Inc.(9)
281 Sanders Creek Parkway
East Syracuse, NY 13057

 

Dental Practice
Management

                       

     

LIBOR Plus 5.50%, Current Coupon 7.00%, Secured Debt (Maturity—October 6, 2016)(8)

    3,990     3,970     3,960  

Associated Asphalt Partners, LLC(9)
2677 Roanoke Avenue, SW
Roanoke, VA 24015

 

Liquid Asphalt Supplier

                       

     

LIBOR Plus 5.75%, Current Coupon 7.25%, Secured Debt (Maturity—March 13, 2018)(8)

    8,950     8,773     8,815  

ATI Acquisition I Corp.(9)
790 Remington Blvd.
Bolingbrook, IL 60440

 

Physical Therapy
Facilities

                       

     

LIBOR Plus 5.50%, Current Coupon 7.50%, Secured Debt (Maturity—March 11, 2016)(8)

    2,846     2,810     2,775  

Blackboard, Inc.(9)
650 Massachusetts Avenue N.W., 6th Floor
Washington, DC 20001

 

Education Software
Provider

                       

     

LIBOR Plus 6.00%, Current Coupon 7.50%, Secured Debt (Maturity—October 4, 2018)(8)

    2,993     2,890     2,983  

     

LIBOR Plus 10.00%, Current Coupon 11.50%, Secured Debt (Maturity—October 4, 2019)(8)

    2,000     1,842     1,851  
                         

                  4,732     4,834  

Blue Coat Systems, Inc.(9)
420 North Mary Avenue
Sunnyvale, CA 94085

 

Web Security and WAN
Optimization

                       

     

LIBOR Plus 6.00%, Current Coupon 7.50%, Secured Debt (Maturity—February 15, 2018)(8)

    2,000     1,961     1,998  

     

LIBOR Plus 10.00%, Current Coupon 11.50%, Secured Debt (Maturity—February 15, 2019)(8)

    2,000     1,941     2,010  
                         

                  3,902     4,008  

Bourland and Leverich Supply Co., LLC(9)
P. O. Box 778
Pampa, TX 79066

 

Distributor of Oil and
Gas Tubular Goods

                       

     

LIBOR Plus 9.00%, Current Coupon 11.00%, Secured Debt (Maturity—August 19, 2015)(8)

    3,753     3,613     3,986  

Brand Connections, LLC
26 Orange Rd
Montclair, NJ 07042

 

Venue-Based Marketing
and Media

                       

     

14% Secured Debt (Maturity—April 30, 2015)

    6,668     6,554     6,668  

Business Development Corporation of America(10)(11)
405 Park Avenue, 15th Floor
New York, NY 10022

 

Investment Management

                       

     

LIBOR Plus 3.50%, Current Coupon 3.74%, Secured Debt (Maturity—January 14, 2013)

    10,000     10,000     10,000  

Calloway Laboratories, Inc.(9)
34 Commerce Way
Woburn, MA 01801

 

Health Care Testing
Facilities

                       

     

LIBOR Plus 11.00% / 3.00% PIK, Current Coupon with PIK 15.00%, Secured Debt (Maturity—
March 29, 2015)(8)

    5,001     4,851     4,851  

83


Table of Contents

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Non-Control/Non-Affiliate Investments(5)

                           

CCCG, LLC(9)
1640 South 101st East Avenue
Tulsa, OK 74128

 

Manufacturer of Oil and
Gas Equipment

                       

     

LIBOR Plus 5.00%, Current Coupon 6.75%, Secured Debt (Maturity—March 31, 2014)(8)

    3,369     3,289     3,268  

CHI Overhead Doors, Inc.(9)
1485 Sunrise Dr.
Arthur IL, 61911

 

Manufacturer of
Overhead Garage Doors

                       

     

LIBOR Plus 5.75%, Current Coupon 7.25%, Secured Debt (Maturity—August 17, 2017)(8)

    2,488     2,442     2,465  

     

LIBOR Plus 9.50%, Current Coupon 11.00%, Secured Debt (Maturity—February 17, 2018)(8)

    2,500     2,453     2,463  
                         

                  4,895     4,928  

Citadel Plastics Holding, Inc.(9)
1600 Powis Court
West Chicago, IL 60185

 

Supplier of Commodity
Chemicals / Plastic Parts

                       

     

LIBOR Plus 5.25%, Current Coupon 6.75%, Secured Debt (Maturity—February 22, 2018)(8)

    3,000     2,970     3,005  

Congruent Credit Opportunities Fund II, LP(10)(11)
3131 McKinney Ave., Suite 850
Dallas, TX 75204

 

Investment Partnership

                       

     

LP Interests (Fully diluted 18.75%)

          6,068     6,068  

Diversified Machine, Inc.(9)
28059 Center Oaks Court
Wixom, MI 48393

 

Automotive Component
Supplier

                       

     

LIBOR Plus 7.75%, Current Coupon 9.25%, Secured Debt (Maturity—December 1, 2016)(8)

    1,995     1,957     2,001  

EnCap Energy Capital Fund VIII, L.P.(10)(11)
1100 Louisiana Street, Suite 4900
Houston, TX 77002

 

Investment Partnership

                       

     

LP Interests (Fully diluted 0.2%)

          1,487     1,487  

Fairway Group Acquisition Company(9)
2284 12th Avenue
New York, NY 10027

 

Retail Grocery

                       

     

LIBOR Plus 6.00%, Current Coupon 7.50%, Secured Debt (Maturity—March 3, 2017)(8)

    7,444     7,390     7,369  

Flexera Software LLC(9)
900 National Parkway
Schaumburg, IL 60173

 

Software Licensing

                       

     

LIBOR Plus 9.75%, Current Coupon 11.00%, Secured Debt (Maturity—September 30, 2018)(8)

    3,000     2,771     2,970  

Fram Group Holdings, Inc.(9)
39 Old Ridgebury Rd
Danbury, CT 06610

 

Manufacturer of
Automotive
Maintenance Products

                       

     

LIBOR Plus 5.00%, Current Coupon 6.50%, Secured Debt (Maturity—July 29, 2017)(8)

    995     990     1,003  

     

LIBOR Plus 9.00%, Current Coupon 10.50%, Secured Debt (Maturity—January 29, 2018)(8)

    1,000     995     986  
                         

                  1,985     1,989  

Go Daddy Group, Inc.(9)
14455 N. Hayden Rd., Suite 219
Scottsdale, AZ 85260

 

Domain Name
Management

                       

     

LIBOR Plus 4.25%, Current Coupon 5.50%, Secured Debt (Maturity—December 17, 2018)(8)

    7,481     7,481     7,496  

Gundle/SLT Environmental, Inc.(9)
19103 Gundle Road
Houston, TX 77073

 

Manufacturer of
Geosynthetic Lining
Products

                       

     

LIBOR Plus 5.50%, Current Coupon 7.00%, Secured Debt (Maturity—May 27, 2016)(8)

    2,978     2,952     2,963  

     

LIBOR Plus 9.50%, Current Coupon 13.00%, Secured Debt (Maturity—November 23, 2016)(8)

    2,000     1,964     1,980  
                         

                  4,916     4,943  

Hayden Acquisition, LLC
7801 West Tangerine Rd
Rillito, AZ 85653

 

Manufacturer of Utility
Structures

                       

     

8% Secured Debt (Maturity—April 1, 2012)

    1,800     1,781      

Helm Financial Corporation(9)
505 Sansome Street, Suite 1800
San Francisco, CA 94111

 

Railcar Leasing

                       

     

LIBOR Plus 5.00%, Current Coupon 6.25%, Secured Debt (Maturity—June 1, 2017)(8)

    1,980     1,962     1,953  

84


Table of Contents

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Non-Control/Non-Affiliate Investments(5)

                           

HMS Income LLC(10)(11)
2800 Post Oak Blvd., Suite 5000
Houston, TX 77056

 

Investment Management

                       

     

LIBOR Plus 3.00%, Current Coupon 3.24%, Secured Debt (Maturity—December 12, 2012)

    7,500     7,500     7,500  

HOA Restaurant Group, LLC(9)
1815 The Exchange
Atlanta, GA 30339

 

Casual Restaurant Group

                       

     

11.25% Bond (Maturity—April 1, 2017)

    2,000     2,000     1,975  

Hupah Finance Inc.(9)
3833 Sala Way (Vermillion St.)
Red Wing, MN 55066

 

Manufacturer of
Industrial Machinery

                       

     

LIBOR Plus 5.00%, Current Coupon 6.25%, Secured Debt (Maturity—January 19, 2019)(8)

    3,000     2,941     3,024  

Il Fornaio Corporation(9)
770 Tamalpais Drive #400
Corte Madera, CA 94925

 

Casual Restaurant Group

                       

     

LIBOR Plus 5.25%, Current Coupon 6.50%, Secured Debt (Maturity—June 10, 2017)(8)

    1,980     1,971     1,982  

Ipreo Holdings LLC(9)
1359 Broadway, 2nd Floor
New York, NY 10018

 

Application Software for
Capital Markets

                       

     

LIBOR Plus 6.50%, Current Coupon 8.00%, Secured Debt (Maturity—August 5, 2017)(8)

    4,229     4,153     4,165  

Ivy Hill Middle Market Credit Fund III, Ltd.(9)(11)
245 Park Avenue, 44th Floor
New York, NY 10167

 

Asset Management

                       

     

LIBOR Plus 6.50%, Current Coupon 6.74%, Secured Debt (Maturity—January 15, 2022)

    2,000     1,664     1,658  

JJ Lease Funding Corp.(9)
4 Batterymarch Park
Quincy, MA 02169

 

Apparel Retail

                       

     

LIBOR Plus 8.50%, Current Coupon 10.00%, Secured Debt (Maturity—April 29, 2017)(8)

    3,900     3,797     3,013  

Kadmon Pharmaceuticals, LLC(9)
450 East 29th Street
New York, NY 10016

 

Biopharmaceutical
Products

                       

     

LIBOR Plus 13.00%, Current Coupon 15.00%, Secured Debt (Maturity—October 31, 2012)(8)

    5,985     5,913     6,240  

Lawson Software, Inc.(9)
380 St. Peter Street
St. Paul, MN 55102

 

Application Software

                       

     

LIBOR Plus 5.25%, Current Coupon 6.75%, Secured Debt (Maturity—July 5, 2017)(8)

    4,975     4,796     4,995  

Liqui-Box, Inc.(9)
9 Greenway Plaza, Suite 240
Houston, TX 77046

 

Supplier of Specialty
Packaging

                       

     

LIBOR Plus 5.25%, Current Coupon 6.75%, Secured Debt (Maturity—December 29, 2017)(8)

    2,993     2,949     2,978  

Media Holdings, LLC(9)(11)
32 Boulevard Royal
L-2449 Luxembourg City
Luxembourg

 

Internet Traffic
Generator

                       

     

LIBOR Plus 13.00%, Current Coupon 15.00%, Secured Debt (Maturity—April 28, 2014)(8)

    5,000     5,195     5,200  

Medpace Intermediateco, Inc.(9)
4620 Wesley Avenue
Cincinnati, OH 45212

 

Clinical Trial
Development and
Execution

                       

     

LIBOR Plus 5.00%, Current Coupon 6.50%, Secured Debt (Maturity—June 17, 2017)(8)

    4,963     4,896     4,814  

Metal Services LLC(9)
The Liberty Place at Kennett Square
148 W. State Street, Suite 301
Kennett Square, PA 19348

 

Steel Mill Services

                       

     

LIBOR Plus 7.50%, Current Coupon 9.00%, Secured Debt (Maturity—January 24, 2018)(8)

    7,900     7,745     7,959  

Metropolitan Health Networks, Inc.(9)(11)
777 Yamato Road, Suite 510
Boca Raton, FL 33431

 

Healthcare Network Provider

                       

     

LIBOR Plus 5.50%, Current Coupon 7.00%, Secured Debt (Maturity—October 4, 2016)(8)

    1,980     1,953     1,921  

     

LIBOR Plus 11.75%, Current Coupon 13.50%, Secured Debt (Maturity—October 4, 2017)(8)

    3,250     3,188     3,185  
                         

                  5,141     5,106  

85


Table of Contents

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Non-Control/Non-Affiliate Investments(5)

                           

Milk Specialties Company(9)
7500 Flying Cloud Drive, Suite 500
Eden Prairie, MN 55344

 

Processor of Nutrition
Products

                       

     

LIBOR Plus 7.00%, Current Coupon 8.50%, Secured Debt (Maturity—December 27, 2017)(8)

    3,990     3,874     3,995  

     

LIBOR Plus 13.00%, Current Coupon 14.50%, Secured Debt (Maturity—December 27, 2018)(8)

    1,000     961     990  
                         

                  4,835     4,985  

Miramax Film NY, LLC(9)
1601 Cloverfield Blvd., Suite 2000
Santa Monica, CA 90404

 

Motion Picture Producer
and Distributor

                       

     

Class B Units (Fully diluted 0.2%)

          500     500  

Mood Media Corporation(9)(11)
20 York Mills Road, 6th Floor
Toronto, Ontario, Canada, M2P 2C2

 

Music Provider

                       

     

LIBOR Plus 5.50%, Current Coupon 7.00%, Secured Debt (Maturity—May 6, 2018)(8)

    2,978     2,949     2,917  

Morton's Restaurant Group, Inc.(9)
1510 West Loop South, 8th Floor
Houston, TX 77027

 

Restaurants

                       

     

LIBOR Plus 7.25%, Current Coupon 8.75%, Secured Debt (Maturity—February 1, 2017)(8)

    3,000     2,927     3,000  

MultiPlan, Inc.(9)
115 Fifth Avenue
New York, NY 10003

 

Managed Healthcare
Provider

                       

     

LIBOR Plus 3.25%, Current Coupon 4.75%, Secured Debt (Maturity—August 26, 2017)(8)

    2,913     2,913     2,893  

National Healing Corporation(9)
4850 T-Rex Avenue, Suite 300
Boca Raton, FL 33431

 

Wound Care
Management

                       

     

LIBOR Plus 6.75%, Current Coupon 8.25%, Secured Debt (Maturity—November 30, 2017)(8)

    2,743     2,611     2,716  

     

LIBOR Plus 10.00%, Current Coupon 11.50%, Secured Debt (Maturity—November 30, 2018)(8)

    1,500     1,413     1,500  

     

Common Equity (Fully diluted 0.02%)

          50     50  
                         

                  4,074     4,266  

Northland Cable Television, Inc.(9)
101 Stewart Street, #700
Seattle, WA 98101

 

Television Broadcasting

                       

     

LIBOR Plus 6.00%, Current Coupon 7.75%, Secured Debt (Maturity—December 30, 2016)(8)

    4,919     4,798     4,796  

Pacific Architects and Engineers Incorporated(9)
1525 Wilson Blvd., Suite 900
Arlington, VA 22209

 

Provider of Contract
Support Services

                       

     

LIBOR Plus 6.00%, Current Coupon 7.50%, Secured Debt (Maturity—April 4, 2017)(8)

    3,995     3,920     3,975  

Phillips Plastic Corporation(9)
1201 Hanley Road
Hudson, WI 54016

 

Custom Molder of
Plastics and Metals

                       

     

LIBOR Plus 5.00%, Current Coupon 6.50%, Secured Debt (Maturity—February 12, 2017)(8)

    1,741     1,725     1,738  

Physician Oncology Services, L.P.(9)
53 Perimeter Center East
Atlanta, GA 30346

 

Provider of Radiation
Therapy and Oncology
Services

                       

     

LIBOR Plus 4.75%, Current Coupon 6.25%, Secured Debt (Maturity—January 31, 2017)(8)

    942     934     909  

Pierre Foods, Inc.(9)
9990 Princeton Road
Cincinnati, OH 45246

 

Foodservice Supplier

                       

     

LIBOR Plus 5.25%, Current Coupon 7.00%, Secured Debt (Maturity—September 30, 2016)(8)

    4,938     4,860     4,947  

     

LIBOR Plus 9.50%, Current Coupon 11.25%, Secured Debt (Maturity—September 29, 2017)(8)

    2,000     1,941     2,018  
                         

                  6,801     6,965  

Preferred Proppants, LLC(9)
One Radnor Corporate Center
100 Matsonford Road, Suite 101
Radnor, PA 19087

 

Producer of Sand Based
Proppants

                       

     

LIBOR Plus 6.00%, Current Coupon 7.50%, Secured Debt (Maturity—December 15, 2016)(8)

    4,988     4,870     4,913  

86


Table of Contents

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Non-Control/Non-Affiliate Investments(5)

                           

Race Point Power, LLC(9)
2711 Centerville Road, Suite 400
Wilmington, DE 19808

 

Electric Utilities / Power
Generation

                       

     

LIBOR Plus 6.00%, Current Coupon 7.75%, Secured Debt (Maturity—January 11, 2018)(8)

    2,238     2,200     2,235  

Radio One, Inc.(9)
5900 Princess Garden Parkway, 7th Floor
Lanham, MD 20706

 

Radio Broadcasting

                       

     

LIBOR Plus 6.00%, Current Coupon 7.50%, Secured Debt (Maturity—March 31, 2016)(8)

    2,970     2,921     2,954  

Shearer's Foods, Inc.(9)
692 Wabash Ave. North
Brewster, OH 44613

 

Manufacturer of Food /
Snacks

                       

     

12.00% Current /3.75% PIK Secured Debt (Maturity—March 31, 2016)

    4,303     4,222     4,174  

SonicWALL, Inc.(9)
2001 Logic Drive
San Jose, CA 95124

 

IT Security Provider

                       

     

LIBOR Plus 6.25%, Current Coupon 8.25%, Secured Debt (Maturity—January 23, 2016)(8)

    878     879     883  

Sourcehov LLC(9)
3232 McKinney Ave., Suite 1000
Dallas, TX 75204

 

Business Process
Services

                       

     

LIBOR Plus 5.38%, Current Coupon 6.63%, Secured Debt (Maturity—April 28, 2017)(8)

    2,985     2,892     2,749  

     

LIBOR Plus 9.25%, Current Coupon 10.50%, Secured Debt (Maturity—April 30, 2018)(8)

    5,000     4,496     3,963  
                         

                  7,388     6,712  

Speedy Cash Intermediate Holdings Corp.(9)
3527 North Ridge Road
Wichita, KS 67205

 

Consumer Finance

                       

     

10.75% Bond (Maturity—May 15, 2018)

    2,000     2,000     2,070  

Surgery Center Holdings, Inc.(9)
5501 W. Gray Street
Tampa, FL 33609

 

Ambulatory Surgical Centers

                       

     

LIBOR Plus 5.00%, Current Coupon 6.50%, Secured Debt (Maturity—February 6, 2017)(8)

    4,950     4,928     4,690  

The Tennis Channel, Inc.
2850 Ocean Park Blvd., Ste. 150
Santa Monica, CA 90405

 

Television-Based Sports
Broadcasting

                       

     

LIBOR Plus 6% / 4% PIK, Current Coupon with PIK 14%, Secured Debt (Maturity—January 1, 2013)(8)

    10,717     11,776     11,776  

     

Warrants (Fully diluted 0.1%)

          235     235  
                         

                  12,011     12,011  

Totes Isotoner Corporation(9)
9655 International Boulevard
Cincinnati, OH 45246

 

Weather Accessory
Retail

                       

     

LIBOR Plus 5.75%, Current Coupon 7.25%, Secured Debt (Maturity—July 7, 2017)(8)

    4,964     4,874     4,914  

Tube City IMS Corporation(9)(11)
12 Monongahela Avenue
Glassport, PA 15045

 

Steel Mill Services

                       

     

LIBOR Plus 4.50%, Current Coupon 5.75%, Secured Debt (Maturity—March 19, 2019)(8)

    1,000     990     1,001  

Ulterra Drilling Technologies, L.P.(9)
420 Throckmorton Street, Suite 1110
Fort Worth, TX 76102

 

Manufacturer of Oil and
Gas Drilling Products

                       

     

LIBOR Plus 7.50%, Current Coupon 9.50%, Secured Debt (Maturity—June 9, 2016)(8)

    6,488     6,375     6,504  

     

LIBOR Plus 7.50%, Current Coupon 9.50%, Secured Debt (Maturity—June 9, 2016)(8)

    2,348     2,305     2,333  
                         

                  8,680     8,837  

UniTek Global Services, Inc.(9)
1777 Sentry Parkway West
Gwynedd Hall, Suite 202
Blue Bell, PA 19422

 

Provider of Outsourced
Infrastructure Services

                       

     

LIBOR Plus 7.50%, Current Coupon 9.00%, Secured Debt (Maturity—April 15, 2018)(8)

    6,418     6,245     6,321  

Vantage Specialties, Inc.(9)
4650 South Racine Ave
Chicago, IL 60609

 

Manufacturer of
Specialty Chemicals

                       

     

LIBOR Plus 5.50%, Current Coupon 7.00%, Secured Debt (Maturity—February 10, 2018)(8)

    4,000     3,922     3,996  

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Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Non-Control/Non-Affiliate Investments(5)

                           

VFH Parent LLC(9)
645 Madison Avenue, 16th Floor
New York, NY 10022

 

Electronic Trading and
Market Making

                       

     

LIBOR Plus 6.00%, Current Coupon 7.50%, Secured Debt (Maturity—July 8, 2016)(8)

    3,889     3,821     3,909  

Visant Corporation(9)
357 Main Street
Armonk, NY 10504

 

School Affinity Stores

                       

     

LIBOR Plus 4.00%, Current Coupon 5.25%, Secured Debt (Maturity—December 22, 2016)(8)

    3,998     3,998     3,911  

Vision Solutions, Inc.(9)
15300 Barranca Parkway
Irvine, CA 92618

 

Computer Software

                       

     

LIBOR Plus 4.50%, Current Coupon 6.00%, Secured Debt (Maturity—July 23, 2016)(8)

    2,801     2,566     2,579  

     

LIBOR Plus 8.00%, Current Coupon 9.50%, Secured Debt (Maturity—July 23, 2017)(8)

    5,000     4,956     4,850  
                         

                  7,522     7,429  

Walter Investment Management Corp.(9)(11)
3000 Bayport Drive, Suite 1100
Tampa, FL 33607

 

Real Estate Services

                       

     

LIBOR Plus 6.25%, Current Coupon 7.75%, Secured Debt (Maturity—June 30, 2016)(8)

    2,775     2,725     2,792  

     

LIBOR Plus 11.00%, Current Coupon 12.50%, Secured Debt (Maturity—December 30, 2016)(8)

    3,000     2,946     3,080  
                         

                  5,671     5,872  

Willis Group, LLC
1400 Post Oak Blvd, Suite 200
Houston, TX 77056

 

Staffing and
Recruitment Services

                       

     

12% Current / 3% PIK Secured Debt (Maturity—December 19, 2014)

    9,000     8,835     8,835  

Wyle Services Corporation(9)
1960 East Grand Avenue, Suite 900
El Segundo, CA 90245

 

Specialized Engineering
and Technical Services

                       

     

LIBOR Plus 4.25%, Current Coupon 5.75%, Secured Debt (Maturity—March 26, 2017)(8)

    3,713     3,693     3,676  

Yankee Cable Acquisition, LLC(9)
650 College Road East, Suite 3100
Princeton, NJ 08540

 

Broadband Service
Provider

                       

     

LIBOR Plus 4.50%, Current Coupon 6.50%, Secured Debt (Maturity—August 26, 2016)(8)

    3,790     3,746     3,782  
                         

Subtotal Non-Control/Non-Affiliate Investments

                  313,646     313,334  
                         

Total Portfolio Investments, March 31, 2012

                 
597,139
   
664,097
 
                         

(1)
Debt investments are generally income producing. Equity and warrants are non-income producing, unless otherwise noted.

(2)
See Note C to our consolidated financial statements for summary geographic location of portfolio companies.

(3)
Controlled investments are defined by the Investment Company Act of 1940, as amended ("1940 Act") as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained.

(4)
Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% of the voting securities are owned and the investments are not classified as Controlled investments.

(5)
Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control Investments nor Affiliate Investments.

(6)
Principal is net of prepayments. Cost is net of prepayments and accumulated unearned income.

(7)
Income producing through dividends or distributions.

(8)
Index based floating interest rate is subject to contractual minimum interest rates.

(9)
Middle Market portfolio investment.

(10)
Other Portfolio investment.

(11)
Investment is not a "qualifying asset" as defined under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets.

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MANAGEMENT

        Our business and affairs are managed under the direction of our Board of Directors. Our Board of Directors appoints our officers, who serve at the discretion of the Board of Directors. The responsibilities of the Board of Directors include, among other things, the oversight of our investment activities, the quarterly valuation of our assets, oversight of our financing arrangements and corporate governance activities. The Board of Directors has an Audit Committee, Compensation Committee, and Nominating and Corporate Governance Committee, and may establish additional committees from time to time as necessary.

Board of Directors and Executive Officers

        Our Board of Directors consists of six members, four of whom are classified under applicable NYSE listing standards as "independent" directors and under Section 2(a)(19) of the 1940 Act as "non-interested" persons. Pursuant to our articles of incorporation, each member of our Board of Directors serves a one year term, with each current director serving until the 2012 annual meeting of stockholders and until his respective successor is duly qualified and elected. Our articles of incorporation give our Board of Directors sole authority to appoint directors to fill vacancies that are created either through an increase in the number of directors or due to the resignation, removal or death of any director.

        Information regarding our current Board of Directors is set forth below as of April 2, 2012. We have divided the directors into two groups—independent directors and interested directors. Interested directors are "interested persons" of MSCC as defined in Section 2(a)(19) of the 1940 Act. The address for each director is c/o Main Street Capital Corporation, 1300 Post Oak Boulevard, Suite 800, Houston, Texas 77056.

Name
  Age   Director
Since
  Expiration
of Term
 

Michael Appling Jr. 

  45     2007     2012  

Joseph E. Canon

  69     2007     2012  

Arthur L. French

  71     2007     2012  

J. Kevin Griffin

  40     2011     2012  

Name
  Age   Director
Since
  Expiration
of Term
 

Vincent D. Foster

  55     2007     2012  

Todd A. Reppert

  42     2007     2012  

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        The following persons serve as our executive officers in the following capacities (ages as of April 2, 2012):

Name
  Age   Position(s) Held
Vincent D. Foster*†   55   Chairman of the Board and Chief Executive Officer
Todd A. Reppert*†   42   Director and President
Dwayne L. Hyzak   39   Chief Financial Officer and Senior Managing Director
Curtis L. Hartman†   39   Chief Credit Officer and Senior Managing Director
David L. Magdol*   41   Chief Investment Officer and Senior Managing Director
Rodger A. Stout   60   Chief Compliance Officer, Senior Vice President—Finance and Administration and Treasurer
Jason B. Beauvais   36   Vice President, General Counsel and Secretary
Michael S. Galvan   43   Vice President and Chief Accounting Officer

*
Member of our Investment Committee. The Investment Committee is responsible for all aspects of our investment process with respect to our lower middle market portfolio investments, including approval of such investments.

Member of our Credit Committee. The Credit Committee is responsible for all aspects of our investment process with respect to our Middle Market portfolio investments, including approval of such investments.

        The address for each executive officer is c/o Main Street Capital Corporation, 1300 Post Oak Boulevard, Suite 800, Houston, Texas 77056.

Biographical Information

        Michael Appling, Jr. is the President and Chief Executive Officer of TNT Crane & Rigging Inc., a privately held full service crane and rigging operator. From July 2002 through August 2007, he was the Executive Vice President and Chief Financial Officer of XServ, Inc., a large private equity funded, international industrial services and rental company. Mr. Appling has also held the position of CEO and President for United Scaffolding, Inc., an XServ, Inc. operating subsidiary. In February 2007, XServ, Inc. was sold to The Brock Group, a private industrial services company headquartered in Texas. From March 2000 to June 2002, Mr. Appling served as the Chief Financial Officer of CheMatch.com, an online commodities trading forum. ChemConnect, Inc., a venture backed independent trading exchange, acquired CheMatch.com in January 2002. From June 1999 to March 2000, Mr. Appling was Vice President and Chief Financial Officer of American Eco Corporation, a publicly traded, international fabrication, construction and maintenance provider to the energy, pulp and paper and power industries. Mr. Appling worked for ITEQ, Inc., a publicly traded, international fabrication and services company, from September 1997 to May 1999, first as a Director of Corporate Development and then as Vice President, Finance and Accounting. From July 1991 to September 1997, Mr. Appling worked at Arthur Andersen LLP, where he practiced as a certified public accountant. We believe Mr. Appling is qualified to serve on our Board of Directors because of his extensive finance and accounting experience, as well as his executive leadership and management experience as a chief executive officer.

        Joseph E. Canon, since 1982, has been the Executive Vice President and Executive Director, and a member of the Board of Directors, of Dodge Jones Foundation, a private charitable foundation located in Abilene, Texas. He has also been involved during this time as an executive officer and director of several private companies and partnerships with emphasis on energy, financial and other alternative

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investments. Prior to 1982, Mr. Canon was an Executive Vice President of the First National Bank of Abilene. From 1974 to 1976, he was the Vice President and Trust Officer with the First National Bank of Abilene. Mr. Canon currently serves on the Board of Directors of First Financial Bankshares, Inc. (NASDAQ-GM: FFIN), a $3 billion bank and financial holding company headquartered in Abilene, Texas. Mr. Canon also serves on the Board of Directors for several bank and trust/asset management subsidiaries of First Financial Bankshares, Inc. He has also served as an executive officer and member of the Board of Directors of various other organizations including the Abilene Convention and Visitors Bureau, Abilene Chamber of Commerce, Conference of Southwest Foundations, City of Abilene Tax Increment District, West Central Texas Municipal Water District and the John G. and Marie Stella Kenedy Memorial Foundation. We believe Mr. Canon's qualifications to serve on our Board of Directors include his many years of managing and investing assets on behalf of public and private entities, his considerable experience in trust banking activities and practices, and his experience on other public boards of directors.

        Arthur L. French has served in a variety of executive management and board of director roles over the course of his business career. He began his private investment activities in 2000 and served as a director of Fab Tech Industries, a steel fabricator, from November 2000 until August 2009, as a director of Houston Plating and Coatings Company, an industrial coatings company, from 2002 until 2007, as a director of Rawson LP, an industrial distribution and maintenance services company, from May 2003 until June 2009, and as non executive chairman of Rawson Holdings, LLC from March 2009 until December 2010. From September 2003 through March 2007, Mr. French was a member of the Advisory Board of Main Street Capital Partners, LLC and a limited partner of Main Street Mezzanine Fund, LP (both of which are now subsidiaries of Main Street). Mr. French currently serves as an advisor to LKCM Capital Group ("LKCM Capital"), an investment company headquartered in Ft. Worth, Texas. Since January 2011, he has also served as chairman of LKCM Distribution Holdings, LP, a LKCM Capital portfolio company that provides strategy overview and direction for several industrial distribution organizations engaged in maintenance and technical services, engineered products distribution and light manufacturing. In addition, since April 2010, Mr. French has served as a director of Industrial Distribution Group, another LKCM Capital portfolio company that provides industrial components and store room management services for manufacturing companies. From 1996-1999, Mr. French was Chairman and Chief Executive Officer of Metals USA Inc. (NYSE), where he managed the process of founders acquisition, assembled the management team and took the company through a successful IPO in July 1997. From 1989-1996, he served as Executive Vice President and Director of Keystone International, Inc. (NYSE), a manufacturer of flow controls equipment. After serving as a helicopter pilot in the United States Army, Captain Corps of Engineers from 1963-1966, Mr. French began his career as a Sales Engineer for Fisher Controls International, Inc., in 1966. During his tenure with Fisher Controls, from 1966-1989, Mr. French held various titles, and ended his career at Fisher Controls as President, Chief Operating Officer and Director. We believe Mr. French is qualified to serve on our Board of Directors because of his executive management and leadership roles within numerous public and private companies and his experience in investing in private companies.

        J. Kevin Griffin, since 2008, has been a Managing Director of Fennebresque & Co., LLC, an investment banking firm located in Charlotte, North Carolina. From 2003 through 2007, he was a Partner at McColl Partners, LLC, where he originated and executed middle market M&A transactions. Prior to McColl Partners, Mr. Griffin worked in the M&A and corporate finance divisions of Lazard Ltd, JPMorgan, and Bank of America in New York, Chicago, and Charlotte. Mr. Griffin's investment banking experience consists primarily of executing and originating mergers and acquisitions and corporate finance transactions. We believe Mr. Griffin is qualified to serve on our Board of Directors because of his extensive finance and valuation experience, as well as his extensive background in working with middle market companies in an M&A and advisory capacity.

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        Vincent D. Foster has served as the Chairman of our Board of Directors, our Chief Executive Officer and as a member of our investment committee since 2007 and as a member of our credit committee since 2011. Mr. Foster also currently serves as a founding director of Quanta Services, Inc. (NYSE: PWR), which provides specialty contracting services to the power, natural gas and telecommunications industries, and Team, Inc. (NASDAQ: TISI), which provides specialty contracting services to the petrochemical, refining, electric power and other heavy industries. He also served as a director of U.S. Concrete, Inc. (NASDAQ-CM: USCR) from 1999 until 2010 and Carriage Services, Inc. (NYSE: CSV) from 1999 to November 2011. In addition, Mr. Foster served as a founding director of the Texas TriCities Chapter of the National Association of Corporate Directors from 2004 to 2011. Mr. Foster, a C.P.A., had a 19 year career with Arthur Andersen, where he was a partner from 1988-1997. Mr. Foster was the director of Andersen's Corporate Finance and Mergers and Acquisitions practice for the Southwest United States and specialized in working with companies involved in consolidating their respective industries. From 1997, Mr. Foster co-founded and has acted as co-managing partner or chief executive of several Main Street predecessor funds and entities, which are now subsidiaries of ours, including Main Street Mezzanine Fund, LP and its general partner, Main Street Mezzanine Management, LLC, Main Street Capital II, LP and its general partner, Main Street Capital II GP, LLC, and Main Street Capital Partners, LLC. Mr. Foster received the Ernst & Young Entrepreneur of the Year 2008 Award in the financial services category in the Houston & Gulf Coast Area. The program honors entrepreneurs who have demonstrated exceptionality in innovation, financial performance and personal commitment to their businesses and communities. We believe Mr. Foster is qualified to serve on our Board of Directors because of his intimate knowledge of our operations through his day-to-day leadership as Chief Executive Officer of Main Street, along with his comprehensive experience on other public Boards of Directors and his extensive experience in tax, accounting, mergers and acquisitions, corporate governance and finance.

        Todd A. Reppert has served as our President and as a member of our investment committee since 2007, and as a member of our credit committee since 2011. Mr. Reppert also serves as a director and member of the audit committee for Consolidated Graphics, Inc. (NYSE: CGX), which is one of North America's leading commercial general printing companies. Mr. Reppert also served as our Chief Financial Officer from 2007 until 2011. From 2000, Mr. Reppert co-founded and has acted as co-managing partner or in other executive roles of several Main Street predecessor funds and entities, which are now subsidiaries of ours, including Main Street Mezzanine Fund, LP and its general partner, Main Street Mezzanine Management, LLC, Main Street Capital II, LP and its general partner, Main Street Capital II GP, LLC, and Main Street Capital Partners, LLC. Prior to that, he was a principal of Sterling City Capital, LLC, a private investment group focused on small to middle market companies. Prior to joining Sterling City Capital in 1997, Mr. Reppert was with Arthur Andersen LLP since 1991. At Arthur Andersen LLP, he assisted in several industry consolidation initiatives, as well as numerous corporate finance and merger/acquisition initiatives. We believe Mr. Reppert's qualifications to serve on our Board of Directors include his extensive finance and accounting experience, his management and operational experience as the President of Main Street, and his considerable experience in corporate finance, mergers and acquisitions and investing in lower middle-market companies.

        Dwayne L. Hyzak has served as our Chief Financial Officer and a Senior Managing Director since 2011. Previously, Mr. Hyzak served as one of our Senior Vice Presidents since 2007 and as Senior Vice President Finance since 2011. From 2002, Mr. Hyzak has served as a Managing Director and in other executive positions of several Main Street predecessor funds and entities, which are now subsidiaries of ours, including the general partner of Main Street Mezzanine Fund, LP, Main Street Mezzanine Management, LLC, the general partner of Main Street Capital II, LP, Main Street Capital II GP, LLC,

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and Main Street Capital Partners, LLC. From 2000 to 2002, Mr. Hyzak was a director of integration with Quanta Services, Inc. (NYSE: PWR), which provides specialty contracting services to the power, natural gas and telecommunications industries, where he was principally focused on the company's mergers and acquisitions and corporate finance activities. Prior to joining Quanta Services, Inc., he was a manager with Arthur Andersen LLP in its Transaction Advisory Services group.

        Curtis L. Hartman has served as our Chief Credit Officer and a Senior Managing Director since 2011. Mr. Hartman is also the chairman of our credit committee. Previously, Mr. Hartman served as one of our Senior Vice Presidents since 2007. From 2000, Mr. Hartman has served as a Managing Director and in other executive positions of several Main Street predecessor funds and entities, which are now subsidiaries of ours, including the general partner of Main Street Mezzanine Fund, LP, Main Street Mezzanine Management, LLC, the general partner of Main Street Capital II, LP, Main Street Capital II GP, LLC, and Main Street Capital Partners, LLC. From 1999 to 2000, Mr. Hartman was an investment adviser for Sterling City Capital, LLC. Concurrently with joining Sterling City Capital, he joined United Glass Corporation, a Sterling City Capital portfolio company, as director of corporate development. Prior to joining Sterling City Capital, Mr. Hartman was a manager with PricewaterhouseCoopers LLP, in its M&A/Transaction Services group. Prior to that, he was employed as a senior auditor by Deloitte & Touche LLP.

        David L. Magdol has served as our Chief Investment Officer and a Senior Managing Director since 2011. Mr. Magdol is also the chairman of our investment committee. Previously, Mr. Magdol served as one of our Senior Vice Presidents since 2007. From 2002, Mr. Magdol has served as a Managing Director and in other executive positions of several Main Street predecessor funds and entities, which are now subsidiaries of ours, including the general partner of Main Street Mezzanine Fund, LP, Main Street Mezzanine Management, LLC, the general partner of Main Street Capital II, LP, Main Street Capital II GP, LLC, and Main Street Capital Partners, LLC. Mr. Magdol joined Main Street from the investment banking group at Lazard Freres & Co. Prior to Lazard, he managed a portfolio of private equity investments for the McMullen Group, a private investment firm/family office capitalized by Dr. John J. McMullen, the former owner of the New Jersey Devils and the Houston Astros. Mr. Magdol began his career in the structured finance services group of JP Morgan Chase.

        Rodger A. Stout has served as our Chief Compliance Officer, Senior Vice President—Finance and Administration and Treasurer since 2007. From 2006, Mr. Stout has served as the Chief Financial Officer and in other executive positions of several Main Street predecessor funds and entities, which are now subsidiaries of ours, including the general partner of Main Street Mezzanine Fund, LP, Main Street Mezzanine Management, LLC, the general partner of Main Street Capital II, LP, Main Street Capital II GP, LLC, and Main Street Capital Partners, LLC. From 2000 to 2006, Mr. Stout was senior vice president and chief financial officer for FabTech Industries, Inc., one of the largest domestic structural steel fabricating companies. From 1985 to 2000, he was a senior financial executive for Jerold B. Katz Interests. He held numerous positions over his 15 year tenure with this national scope financial services conglomerate. Those positions included director, executive vice president, senior financial officer and investment officer. Prior to 1985, Mr. Stout was an international tax executive in the oil and gas service industry.

        Jason B. Beauvais has served as our Vice President, General Counsel and Secretary since 2008. From 2008, Mr. Beauvais has also served as General Counsel and in other executive positions of several of our subsidiary funds and entities, including the general partner of Main Street Mezzanine Fund, LP, Main Street Mezzanine Management, LLC, the general partner of Main Street Capital II, LP, Main Street Capital II GP, LLC, and Main Street Capital Partners, LLC. From 2006 through 2008, he was an attorney with Occidental Petroleum Corporation, an international oil and gas exploration and production company. Prior to joining Occidental Petroleum Corporation, Mr. Beauvais practiced corporate and securities law at Baker Botts L.L.P., where he primarily counseled companies in public

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issuances and private placements of debt and equity and handled a wide range of general corporate and securities matters as well as mergers and acquisitions.

        Michael S. Galvan has served as our Vice President and Chief Accounting Officer since 2008. Prior to that, Mr. Galvan was senior manager of financial operations with Direct Energy, a retail gas and electricity service provider since October 2006. From September 2005 to October 2006, he was a senior audit manager with Malone & Bailey, PC, where he managed and coordinated audits of both publicly traded and private companies. From March 2003 to September 2005, Mr. Galvan was Director of Bankruptcy Coordination at Enron Corporation. Prior to March 2003, he served in other executive positions at various Enron affiliates. Prior to joining Enron, Mr. Galvan was a senior auditor with Arthur Andersen LLP.

CORPORATE GOVERNANCE

        We maintain a corporate governance section on our website which contains copies of the charters for the committees of our Board of Directors. The corporate governance section may be found at http://mainstcapital.com under "Governance" in the "Investor Relations" section of our website. The corporate governance section contains the following documents, which are available in print to any stockholder who requests a copy in writing to Main Street Capital Corporation, Corporate Secretary's Office, 1300 Post Oak Blvd., Suite 800, Houston, Texas 77056:

        In addition, our Code of Business Conduct and Ethics and our Corporate Governance and Stock Ownership Guidelines may be found at http://mainstcapital.com under "Governance" in the "Investor Relations" section of our website and are available in print to any stockholder who requests a copy in writing.

Director Independence

        Our Board of Directors currently consists of six members, four of whom are classified under applicable listing standards of the New York Stock Exchange as "independent" directors and under Section 2(a)(19) of the 1940 Act as not "interested persons." Based on these independence standards, our Board of Directors has affirmatively determined that the following directors are independent:

        Our Board of Directors considered the following relationships in evaluating our directors' independence under the applicable listing standards of the New York Stock Exchange. Both Messrs. Canon and French had previously been limited partners in Main Street Mezzanine Fund, LP, and Mr. French had previously served on the Advisory Board of Main Street Capital Partners, LLC, one of our wholly owned subsidiaries and the investment adviser to Main Street Mezzanine Fund, LP and Main Street Capital II, LP, prior to our acquisition of these entities. Messrs. Canon and French were also limited partners in Main Street Capital II, LP, a Small Business Investment Company, or SBIC, fund licensed by the United States Small Business Administration, in which we acquired a majority limited partnership interest in January 2010. In February 2012, after obtaining exemptive relief from the Securities and Exchange Commission, or SEC, the Company acquired the limited partnership interest of each of Mr. French and Mr. Canon in Main Street Capital II, LP, along with the limited partnership interest of other affiliates of the Company, in accordance with the terms and conditions of

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such relief. Our Board of Directors determined that the prior relationships and transactions described above would not impact the ability of either Mr. Canon or Mr. French to exercise independent judgment and do not impair the independence of either of them.

Communications with the Board

        Stockholders or other interested persons may send written communications to the members of our Board of Directors, addressed to Board of Directors, c/o Main Street Capital Corporation, Corporate Secretary's Office, 1300 Post Oak Blvd., Suite 800, Houston, Texas 77056. All communications received in this manner will be delivered to one or more members of our Board of Directors.

Board Leadership Structure

        Mr. Foster currently serves as both our Chief Executive Officer and as the Chairman of our Board of Directors. As our Chief Executive Officer, Mr. Foster is an "interested person" under Section 2(a)(19) of the 1940 Act. The Board believes that the Company's Chief Executive Officer is currently best situated to serve as Chairman given his history with the Company, his deep knowledge of the Company's business and his extensive experience in managing private debt and equity investments in lower middle market companies. The Company's independent directors bring experience, oversight and expertise from outside the Company and industry, while the Chief Executive Officer brings company-specific and industry-specific experience and expertise. The Board believes that the combined role of Chairman and Chief Executive Officer promotes strategy development and execution, and facilitates information flow between management and the Board, which are essential to effective governance.

        One of the key responsibilities of the Board is to oversee the development of strategic direction and hold management accountable for the execution of strategy once it is developed. The Board believes the combined role of Chairman and Chief Executive Officer, together with a Lead Independent Director as described below, is in the best interest of our stockholders because it provides the appropriate balance between strategy development and independent oversight of management.

        Our Board of Directors designated Arthur L. French as Lead Independent Director to preside at all executive sessions of non-management directors. In the Lead Independent Director's absence, the remaining non-management directors may appoint a presiding director by majority vote. The non-management directors meet in executive session without management on a regular basis. The Lead Independent Director also has the responsibility of consulting with management on Board and committee meeting agendas, acting as a liaison between management and the non-management directors, including maintaining frequent contact with the Chairman and Chief Executive Officer and facilitating collaboration and communication between the non-management directors and management. Stockholders or other interested persons may send written communications to Arthur L. French, addressed to Lead Independent Director, c/o Main Street Capital Corporation, Corporate Secretary's Office, 1300 Post Oak Blvd., Suite 800, Houston, Texas 77056.

Board of Directors and its Committees

        Board of Directors.    Our Board of Directors met six times and acted by unanimous written consent nine times during 2011. All directors attended at least 75% of the meetings of the Board of Directors and of the committees on which they served during 2011, and all directors attended the 2011 Annual Meeting of Stockholders in person. Our Board of Directors expects each director to make a diligent effort to attend all Board and committee meetings, as well as each Annual Meeting of Stockholders.

        Committees.    Our Board of Directors currently has, and appoints the members of, standing Audit, Compensation and Nominating and Corporate Governance Committees. Each of those committees is

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comprised entirely of independent directors and has a written charter approved by our Board of Directors. The current members of the committees are identified in the following table.

 
  Board Committees
Director
  Audit   Compensation   Nominating and
Corporate
Governance

Michael Appling Jr. 

  Chair       ý

Joseph E. Canon

  ý   ý   Chair

Arthur L. French

  ý   Chair    

J. Kevin Griffin

  ý   ý   ý

        Audit Committee.    During the year ended December 31, 2011, the Audit Committee met five times. The Audit Committee is responsible for selecting, engaging and discharging our independent accountants, reviewing the plans, scope and results of the audit engagement with our independent accountants, approving professional services provided by our independent accountants (as well as the compensation for those services), reviewing the independence of our independent accountants and reviewing the adequacy of our internal control over financial reporting. In addition, the Audit Committee is responsible for assisting our Board of Directors with its review and approval of the determination of the fair value of our debt and equity investments, and other financial investments, that are not publicly traded or for which current market values are not readily available. The current members of the Audit Committee are Messrs. Appling, Canon, French and Griffin. Our Board of Directors has determined that each of Messrs. Appling, Canon and Griffin is an "Audit Committee financial expert" as defined by the SEC. For more information on the backgrounds of these directors, see their biographical information under "Election of Directors" above.

        Compensation Committee.    During the year ended December 31, 2011, the Compensation Committee met five times and acted by unanimous written consent once. The Compensation Committee determines the compensation and related benefits for our executive officers including the amount of salary, bonus and stock-based compensation to be included in the compensation package for each of our executive officers. In addition, the Compensation Committee assists the Board of Directors in developing and evaluating the compensation of our non-management directors and evaluating succession planning with respect to the chief executive officer and other key executive positions. The actions of the Compensation Committee are generally reviewed and ratified by the entire Board of Directors, except the employee directors do not vote with respect to their compensation. The current members of the Compensation Committee are Messrs. Canon, French and Griffin.

        Nominating and Corporate Governance Committee.    During the year ended December 31, 2011, the Nominating and Corporate Governance Committee met five times. The Nominating and Corporate Governance Committee is responsible for determining criteria for service on our Board of Directors, identifying, researching and recommending to the Board of Directors director nominees for election by our stockholders, selecting nominees to fill vacancies on our Board of Directors or a committee of the Board, developing and recommending to our Board of Directors any amendments to our corporate governance principles and overseeing the self-evaluation of our Board of Directors and its committees. The current members of the Nominating and Corporate Governance Committee are Messrs. Appling, Canon and Griffin.

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Compensation Committee Interlocks and Insider Participation

        Each member of the Compensation Committee is independent for purposes of the applicable listing standards of the New York Stock Exchange. During the year ended December 31, 2011, no member of the Compensation Committee was an officer, former officer or employee of ours or had a relationship disclosable under "Certain Relationships and Related Transactions—Transactions with Related Persons." No interlocking relationship, as defined by the rules adopted by the Securities and Exchange Commission, existed during the year ended December 31, 2011 between any member of the Board of Directors or the Compensation Committee and an executive officer of Main Street.

Director Nomination Process

        Our Nominating and Corporate Governance Committee has determined that a candidate for election to our Board of Directors must satisfy certain general criteria, including, among other things:

        The Nominating and Corporate Governance Committee seeks to identify potential director candidates who will strengthen the Board of Directors and will contribute to the overall mix of general criteria identified above. In addition to the general criteria, the Nominating and Corporate Governance Committee considers specific criteria, such as particular skills, experiences (whether in business or in other areas such as public service, academia or scientific communities), areas of expertise, specific backgrounds, and other characteristics, that should be represented on the Board of Directors to enhance its effectiveness and the effectiveness of its committees. The Nominating and Corporate Governance Committee does not have a formal policy with respect to diversity; however, the Board and the Nominating and Corporate Governance Committee believe that it is essential that the Board members represent diverse viewpoints and a diverse mix of the specific criteria above. The process of identifying potential director candidates includes establishing procedures for soliciting and reviewing potential nominees from directors and for advising those who suggest nominees of the outcome of such review. The Nominating and Corporate Governance Committee also has the authority to retain and terminate any search firm used to identify director candidates.

        Any stockholder may nominate one or more persons for election as one of our directors at an annual meeting of stockholders if the stockholder complies with the notice, information and consent provisions contained in our by-laws and any other applicable law, rule or regulation regarding director nominations. When submitting a nomination to our company for consideration, a stockholder must provide certain information that would be required under applicable SEC rules, including the following minimum information for each director nominee: full name, age and address; number of any shares of our stock beneficially owned by the nominee, if any; the date such shares were acquired and the

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investment intent of such acquisition; whether such stockholder believes the nominee is an "interested person" of our company, as defined in 1940 Act; and all other information required to be disclosed in solicitations of proxies for election of directors in an election contest or is otherwise required, including the nominee's written consent to being named in the proxy statement as a nominee and to serving as a director if elected. See "Stockholders' Proposals" in our proxy statement and our by-laws for other requirements of stockholder proposals.

        The Nominating and Corporate Governance Committee will consider candidates identified through the processes described above, and will evaluate each of them, including incumbents, based on the same criteria. The Nominating and Corporate Governance Committee also takes into account the contributions of incumbent directors as Board members and the benefits to us arising from their experience on our Board of Directors. Although the Nominating and Corporate Governance Committee will consider candidates identified by stockholders, the Nominating and Corporate Governance Committee may determine not to recommend those candidates to our Board of Directors, and our Board of Directors may determine not to nominate any candidates recommended by the Nominating and Corporate Governance Committee. None of the director nominees named in this prospectus were nominated by stockholders.

Board's Role in the Oversight of Risk Management

        Our Board of Directors as a whole has responsibility for risk oversight, with reviews of certain areas being conducted by the relevant Board Committees that report on their deliberations to the full Board. The oversight responsibility of the Board and its Committees is enabled by management reporting processes that are designed to provide visibility to the Board about the identification, assessment and management of critical risks and management's risk mitigation strategies. Areas of focus include competitive, economic, operational, financial (accounting, credit, liquidity and tax), legal, regulatory, compliance and other risks. The Board and its Committees oversee risks associated with their respective principal areas of focus, as summarized below. Committees meet in executive session with key management personnel regularly and with representatives of outside advisors as necessary.

Board/Committee
  Primary Areas of Risk Oversight

Full Board

  Strategic, financial and execution risks and exposures associated with the annual operating plan and five-year strategic plan; major litigation and regulatory exposures and other current matters that may present material risk to our operations, plans, prospects or reputation; material acquisitions and divestitures.

Audit Committee

 

Risks and exposures associated with financial matters, particularly investment valuation, financial reporting and disclosure, tax, accounting, oversight of independent accountants, internal control over financial reporting, financial policies and credit and liquidity matters.

Compensation Committee

 

Risks and exposures associated with leadership assessment, senior management succession planning, executive and director compensation programs and arrangements, including incentive plans, and compensation related regulatory compliance.

Nominating and Corporate Governance Committee

 

Risks and exposures relating to our programs and policies relating to legal compliance, corporate governance, and director nomination, evaluation and succession planning.

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COMPENSATION OF DIRECTORS

        The following table sets forth the compensation that we paid during the year ended December 31, 2011 to our directors. Directors who are also employees of Main Street or any of its subsidiaries do not receive compensation for their services as directors.

Director Compensation Table

Name
  Fees Earned or
Paid in Cash
  Stock
Awards(1)
  All Other
Compensation(2)
  Total  

Arthur L. French

  $ 72,500   $ 29,990   $ 2,566   $ 105,056  

Michael Appling Jr. 

    57,500     29,990     2,566     90,056  

Joseph E. Canon

    47,500     29,990     2,566     80,056  

J. Kevin Griffin(3)

    36,795     29,993     887     67,675  

William D. Gutermuth(4)

    42,500     29,990     2,566     75,056  

(1)
Each of Messrs. French, Appling and Canon received an award of 1,646 restricted shares on June 20, 2011 and Mr. Griffin received an award of 1,658 restricted shares on August 3, 2011, each under the Main Street Capital Corporation 2008 Non-Employee Director Restricted Stock Plan (the "Non-Employee Director Plan"), which will vest 100% on June 13, 2012, the day before the Annual Meeting, provided that the grantee has been in continuous service as a member of the Board through such date. Mr. Gutermuth also received an award of 1,646 restricted shares on June 20, 2011 under the Non-Employee Director Plan; however, pursuant to the terms of the Non-Employee Director Plan, the Board accelerated the vesting of these restricted shares to immediately prior to his retirement on March 2, 2012. These amounts represent the grant date fair value of the 2011 stock awards in accordance with FASB ASC Topic 718 based on the closing price of our common stock on the date of grant. Pursuant to SEC rules, the amounts shown exclude the impact of any estimated forfeitures related to service-based vesting conditions. These amounts may not correspond to the actual value that will be recognized by our directors upon vesting. Each of Messrs. French, Appling, Canon and Gutermuth had 1,646, and Mr. Griffin had 1,658, unvested shares of restricted stock outstanding as of December 31, 2011. Please see the discussion of the assumptions made in the valuation of these awards in Note M to the audited consolidated financial statements included in this prospectus.

(2)
These amounts reflect the dollar value of dividends paid on unvested restricted stock awards in 2011.

(3)
Mr. Griffin was appointed by the Board on August 3, 2011 to fill a newly created vacancy.

(4)
On March 2, 2012, Mr. Gutermuth retired from the Board and each of its committees to permit his law firm, Bracewell & Giuliani LLP, to act as legal counsel to Main Street. Under the 1940 Act and the corporate governance rules of the New York Stock Exchange, Mr. Gutermuth could not continue to act as an independent director of Main Street if his law firm performs legal services for Main Street. Mr. Gutermuth's retirement was not the result of any disagreement with management or the Board related to Main Street's operations, policies or practices. After Mr. Gutermuth's retirement, the Board reduced the size of the Board from seven to six directors.

        The compensation for non-employee directors for 2011 was comprised of cash compensation paid to or earned by directors in connection with their service as a director. That cash compensation consisted of an annual retainer of $42,500, and an additional $20,000 retainer for the Lead Independent Director. Non-employee directors do not receive fees based on meetings attended absent

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circumstances that require an exceptionally high number of meetings within an annual period. We also reimburse our non-employee directors for all reasonable expenses incurred in connection with their service on our Board. The chairs of our Board committees receive additional annual retainers as follows:

        The Non-Employee Director Plan provides a means through which we may attract and retain qualified non-employee directors to enter into and remain in service on our Board of Directors. Under the Non-Employee Director Plan, at the beginning of each one-year term of service on our Board of Directors, each non-employee director will receive a number of shares equivalent to $30,000 worth of shares based on the closing price of a share of our common stock on the New York Stock Exchange (or other exchange on which are shares are then listed) on the date of grant. Forfeiture provisions will lapse as to an entire award at the end of the one-year term.

        For the beneficial ownership of our common stock by each of our directors and the dollar range value of such ownership, please see "Control Persons and Principal Stockholders."

COMPENSATION DISCUSSION AND ANALYSIS

        The following Compensation Discussion and Analysis, or CD&A, provides information relating to the 2011 compensation of Main Street's Chief Executive Officer, President, Chief Financial Officer and three other most highly compensated executive officers during 2011. Those six individuals are referred to in this CD&A as the Named Executive Officers, or NEOs.

Compensation Philosophy and Objectives

        The Main Street compensation system was developed by the Compensation Committee and approved by all independent directors. The system is designed to attract and retain key executives, motivate them to achieve the Company's business objectives and reward them for performance while aligning management's interests with those of the Company's stockholders. The structure of Main Street's incentive compensation programs is formulated to encourage and reward the following, among other things:

        The Compensation Committee has the primary authority to establish compensation for the NEOs and other key employees and administers all executive compensation arrangements and policies. Main Street's Chief Executive Officer assists the Committee by providing recommendations regarding the compensation of NEOs and other key employees, excluding himself. The Committee exercises its discretion by modifying or accepting these recommendations. The Chief Executive Officer routinely attends a portion of the Committee meetings. However, the Committee often meets in executive session without the Chief Executive Officer or other members of management when discussing compensation matters and on other occasions as determined by the Committee.

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        The Compensation Committee takes into account competitive market practices with respect to the salaries and total direct compensation of the NEOs. Members of the Committee consider market practices by reviewing proxy statements or similar information made available by other internally managed business development companies, or BDCs, under the 1940 Act. The Committee also has the authority to utilize compensation consultants to better understand competitive pay practices and has retained such expertise in the past.

Assessment of Market Data

        To assess the competitiveness of executive compensation levels, the Compensation Committee analyzes a comparative group of BDCs and reviews their competitive performance and compensation levels. This analysis focuses on key elements of compensation practices within the BDC industry in general and, more specifically, compensation practices at internally managed BDCs reasonably comparable in asset size, typical investment size and type, market capitalization and general business scope to the Company. For 2011, the peer group includes Hercules Technology Growth Capital, Inc., MCG Capital Corporation, Kohlberg Capital Corporation and Triangle Capital Corporation. In addition to analyzing these and other BDCs, the Committee also evaluates the relative cost structure of the Company compared to the entire BDC sector, including internally and externally managed BDCs, as well as the compensation structure of the private equity industry and other asset management companies based on public information such as proxy statements and third party compensation surveys.

        Items taken into account include, but are not necessarily limited to, base compensation, bonus compensation, equity option awards, restricted stock awards, and other compensation as detailed in the respective proxies, research analysts' reports and other publicly available information. In addition to actual levels of compensation, the Compensation Committee also analyzes the approach other BDCs are taking with regard to NEO compensation practices. Such items include, but are not necessarily limited to, the use of employment agreements for certain employees, a mix of cash and equity compensation, the use of third party compensation consultants and certain corporate and executive performance measures established to achieve long-term total return for stockholders. Although none of the peer companies is precisely comparable in size, strategy, scope and operations to the Company, the Committee believes that they are the most relevant comparable companies available with disclosed executive compensation data, and provide a good representation of competitive compensation levels for the Company's executives.

Assessment of Company Performance

        The Compensation Committee believes that sustainable financial performance coupled with reasonable, long-term stockholders' returns and proportional employee compensation are essential components for Main Street's long-term business success. Main Street typically makes three to seven year investments in its portfolio companies. The Company's business plan involves taking on investment risk over a range of time periods. Accordingly, much emphasis is focused on maintaining the stability of net asset values as well as the continuity of earnings to pass through to stockholders in the form of recurring dividends. The quality of the earnings supporting the dividends as well as the maintenance and growth of dividends are key metrics in the Committee's assessment of financial performance.

        Main Street's strategy is to generate current income from debt investments and to realize capital gains from equity-related investments. This income supports the payment of dividends to stockholders. The recurring payment of dividends requires a methodical investment acquisition approach and active monitoring and management of the investment portfolio over time. A meaningful part of the Company's employee base is dedicated to the maintenance of asset values and expansion of this recurring income to sustain and grow dividends. The Committee believes that stability with regard to the management team is important in achieving successful implementation of the Company's strategy. Further, the Committee, in establishing and assessing executive salary and performance incentives, is

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relatively more focused on Main Street results rather than the performance of other comparable companies or industry comparisons.

Executive Compensation Components

        For 2011, the components of Main Street's direct compensation program for NEOs include:

        The Compensation Committee designs each NEO's direct compensation package to appropriately reward the NEO for his contribution to the Company. The judgment and experience of the Committee are weighed with individual and Company performance metrics and consultation with the Chief Executive Officer to determine the appropriate mix of compensation for each individual. Cash compensation consisting of base salary and discretionary bonuses tied to achievement of individual performance goals reviewed and approved by the Committee, as well as corporate objectives, is intended to motivate NEOs to remain with the Company and work to achieve its business objectives. Stock-based compensation is awarded based on performance expectations reviewed and approved by the Committee for each NEO. The blend of short-term and long-term compensation may be adjusted from time to time to balance the Committee's views regarding the benefits of current cash compensation and appropriate retention incentives.

        Base salary is used to recognize the experience, skills, knowledge and responsibilities required of the NEOs in their roles. In connection with establishing the base salary of each NEO, the Compensation Committee and management consider a number of factors, including the seniority and experience level of the individual, the functional role of his position, the level of the individual's responsibility, the Company's ability to replace the individual, the past base salary of the individual and the relative number of well-qualified candidates available in the area. In addition, the Committee considers publicly available information regarding the base salaries paid to similarly situated executive officers and other competitive market practices.

        The salaries of the NEOs are reviewed on an annual basis, as well as at the time of promotion or any substantial change in responsibilities. The key factors in determining increases in salary level are relative performance and competitive pressures.

        Annual cash bonuses are intended to reward individual performance during the year and can therefore be highly variable from year to year. Bonus opportunities for the NEOs are determined by the Compensation Committee on a discretionary basis and are based on performance criteria, particularly the company's dividend performance as well as corporate and individual performance goals and measures set by the Committee with the Chief Executive Officer's input. Should actual performance exceed expected performance criteria, the Committee may adjust individual cash bonuses to take such superior performance into account.

        Main Street's Board and stockholders have approved the 2008 Equity Incentive Plan to provide stock-based awards as long-term incentive compensation to employees, including the NEOs. The

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Company uses stock-based awards to (i) attract and retain key employees, (ii) motivate employees by means of performance-related incentives to achieve long-range performance goals, (iii) enable employees to participate in the Company's long-term growth in value and (iv) link employees' compensation to the long-term interests of stockholders. At the time of each award, the Compensation Committee will determine the terms of the award, including any performance period (or periods) and any performance objectives relating to vesting of the award.

        Options.    The Compensation Committee may grant equity options to purchase Main Street's common stock (including incentive stock options and nonqualified stock options). The Committee expects that any options granted by it will represent a fixed number of shares of common stock, will have an exercise price equal to the fair market value of common stock on the date of grant, and will be exercisable, or "vested," at some later time after grant. Some stock options may provide for vesting simply by the grantee remaining employed by Main Street for a period of time, and some may provide for vesting based on the grantee and/or the Company attaining specified performance levels. To date, the Committee has not granted any stock options to any NEO.

        Restricted Stock.    Main Street has received exemptive relief from the SEC that permits the Company to grant restricted stock in exchange for or in recognition of services by its executive officers and employees. Pursuant to the 2008 Equity Incentive Plan, the Compensation Committee may award shares of restricted stock to plan participants in such amounts and on such terms as the Committee determines in its sole discretion, provided that such awards are consistent with the conditions set forth in the SEC's exemptive order. Each restricted stock grant will be for a fixed number of shares as set forth in an award agreement between the grantee and Main Street. Award agreements will set forth time and/or performance vesting schedules and other appropriate terms and/or restrictions with respect to awards, including rights to dividends and voting rights. The Committee's normal practice had been to have restricted stock awards for NEOs vest over a four year time frame in equal increments.

        Main Street's NEOs participate in the same benefit plans and programs as the Company's other employees, including comprehensive medical and dental insurance, vision care, business travel insurance and short term disability coverage as well as long term disability insurance.

        Main Street maintains a 401(k) plan for all full-time employees who are at least 21 years of age through which the Company makes non-discretionary matching contributions to each participant's plan account on the participant's behalf. For each participating employee, the Company's contribution is generally a match of the employee's contributions up to a 4.5% contribution level with a maximum annual regular matching contribution of $11,025 during 2011. All contributions to the plan, including those made by the Company, vest immediately. The Board of Directors may also, at its sole discretion, make additional contributions to employee 401(k) plan accounts, which would vest on the same basis as other employer contributions.

        The Company provides no other material benefits, perquisites or retirement benefits to the NEOs.

Potential Payments Upon Change in Control

        Upon specified transactions involving a change in control (as defined in the 2008 Equity Incentive Plan), all outstanding awards under the 2008 Equity Incentive Plan may either be assumed or substituted for by the surviving entity. If the surviving entity does not assume or substitute similar awards, the awards held by the plan participants will be subject to accelerated vesting in full and, in the case of options, then terminated to the extent not exercised within a designated time period.

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        Transactions involving a "change in control" under the 2008 Equity Incentive Plan include:

        The number of shares and value of restricted stock for the NEOs as of December 31, 2011 that would have vested under the acceleration scenarios described above is shown under the caption entitled "Compensation of Executive Officers—Outstanding Equity Awards at Fiscal Year-End."

Tax Deductibility of Compensation

        Section 162(m) of the Internal Revenue Code generally disallows a deduction to public companies to the extent of excess annual compensation over $1 million paid to certain executive officers, except for qualified performance-based compensation. Main Street's general policy, where consistent with business objectives, is to preserve the deductibility of executive officer compensation. However, the Compensation Committee may authorize amounts and forms of compensation that might not be deductible if the Committee deems such to be in the best interests of Main Street and its stockholders.

Participation of Executives in Outside Public Directorships

        Our Board of Directors believes that there may be benefits to the Company from our executive officers, including our NEOs, being involved in outside public company directorships. The business experience, knowledge and contacts gained by our executives in such capacities can be a valuable asset to the Company. However, involvement in such outside public directorships can be time consuming and may take time away from the executives' responsibilities to the Company. With this in mind, our Board of Directors implemented a policy starting in 2009 to permit executive officers to participate in outside public directorships with the prior approval of the independent members of our Board of Directors. The policy requires that 75% of the cash retainers for any such directorships be paid to the Company. In 2011 this policy applied only to Messrs. Foster and Reppert since they were the only executive officers with any outside public directorships. Mr. Foster currently serves as a director for two public companies other than the Company, and Mr. Reppert serves as a director of one other public company.

Stockholder Advisory Vote on Executive Compensation

        At our 2011 Annual Meeting of Stockholders, our stockholders provided an advisory vote with 95% of the votes cast approving our compensation philosophy, policies and procedures and the 2010 fiscal year compensation of our NEOs (the "Advisory Vote"). Subsequently, the Compensation Committee considered the results of the Advisory Vote in determining compensation policies and decisions of the Company. The Advisory Vote affected the Company's executive compensation decisions and policies by reaffirming the Company's compensation philosophies, and the Compensation Committee will continue to use these philosophies and past practice in determining future compensation decisions.

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2011 Compensation Determination

        The Compensation Committee analyzed the competitiveness of the components of compensation described above on both an individual and aggregate basis. The Committee believes that the total compensation paid to the NEOs for the fiscal year ended December 31, 2011, is consistent with the overall objectives of Main Street's executive compensation program.

        The Compensation Committee annually reviews the base salary of each executive officer, including each NEO, and determines whether or not to increase it in its sole discretion. Increases to base salary can be awarded to recognize, among other things, relative performance, relative cost of living and competitive pressures.

        In 2011, (i) Mr. Foster was paid an annual base salary of $453,074, an increase of 8.0% over his 2010 annual base salary, (ii) Mr. Reppert was paid an annual base salary of $336,121, an increase of 3.5% over his 2010 annual base salary, (iii) Mr. Hyzak was paid an annual base salary of $259,290, an increase of 11.8% over his 2010 annual base salary, (iv) Messrs. Hartman and Magdol were each paid an annual base salary of $250,956, an increase of 8.2% over their 2010 annual base salaries, and (v) Mr. Stout was paid an annual base salary of $239,956, an increase of 3.5% over his 2010 annual base salary. All of these salary increases are attributable to NEO and Company performance in 2011and also to more closely align their compensation with similar executive officers of the Company's peer group of comparative companies. In addition, the salary increases for Messrs. Hyzak, Hartman and Magdol also reflect increases to base salaries in connection with their promotions in August 2011 to Chief Financial Officer, Chief Credit Officer and Chief Investment Officer, respectively. The Committee believes that the salary increases and resulting base salaries were competitive in the market place and appropriate for Main Street executives as a key component of an overall compensation package.

        Cash bonuses are determined annually by the Compensation Committee on a discretionary basis. The Committee considered performance achievements in the determination of cash bonuses for 2011, including company performance and the personal performance of each individual. The performance goals used for determining the cash bonuses for NEOs included, among other things, the following:

        The Company paid cash bonuses to NEOs for 2011 in recognition of the Company's excellent performance, as well as each individual NEO's performance and contribution to the Company's performance. Company performance criteria included total shareholder return versus comparable companies and the market in general, increased dividend per share payout, increased net asset value per share and increased distributable net investment income per share, the net appreciation and growth of the investment portfolio and maintenance and improvement of a relatively low total operating cost

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structure among comparable companies. In summary, the performance of individual NEOs and the management team overall was at a consistent high level resulting in outstanding financial results. In addition, the Company was named the 2011 Small Business Investment Company of the Year by the U.S. Small Business Administration. The U.S. Small Business Administration annually presents the SBIC of the Year award to an SBIC program participant that demonstrates excellence in financial performance, as well as dedication to promoting the objectives of the SBIC program.

        The amount of cash bonus paid to each NEO for 2011 is presented under the caption entitled "Compensation of Executive Officers—Summary Compensation Table." The Committee believes that these cash bonus awards are individually appropriate based on 2011 performance. Such bonuses comprise a key component of the Company's overall compensation program.

        The Company granted restricted shares to our NEOs in 2011 to recognize individual contributions to corporate strategic priorities and to the long-term performance of the Company. Contributions to the future success of the Company include expanded roles of NEOs within the Company, recruitment and development of personnel, advancement of various strategic initiatives with benefits beyond the current year, development of various capital structure alternatives and enhancement of the Company's reputation with key constituents. The amount of restricted shares granted to each NEO in 2011 is presented under the caption entitled "Compensation of Executive Officers—Grants of Plan-Based Awards." The Committee is currently assessing the potential for long-term incentive compensation through grants of restricted shares to our NEOs for 2012, which will be awarded in June 2012. All restricted stock grants to NEOs under the 2008 Equity Incentive Plan vest ratably over four years from the grant date.

COMPENSATION OF EXECUTIVE OFFICERS

        The following table summarizes compensation of our Chief Executive Officer, our Chief Financial Officer and our four highest paid executive officers who did not serve as our Chief Executive Officer or Chief Financial Officer during 2011, all of whom we refer to as our NEOs, for the fiscal year ended December 31, 2011.

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Summary Compensation Table

Name and Principal Position
  Year   Salary(1)   Bonus(1)(2)   Stock
Awards(3)
  All Other
Compensation(4)
  Total  

Vincent D. Foster

    2011   $ 453,074   $ 793,450   $ 438,756   $ 115,912   $ 1,801,192  

Chairman and Chief

    2010     419,450     210,000     453,546     99,324     1,182,320  

Executive Officer

    2009     353,910         445,433     79,944     879,287  

Todd A. Reppert

    2011   $ 336,121   $ 558,150   $ 295,984   $ 91,511   $ 1,281,766  

President

    2010     324,716     160,000     399,536     77,722     961,974  

    2009     316,410         237,303     70,719     624,432  

Dwayne L. Hyzak

    2011   $ 259,290   $ 464,250   $ 218,877   $ 72,863   $ 1,015,280  

Chief Financial Officer and

    2010     231,848     130,000     264,655     66,952     693,455  

Senior Managing Director

    2009     223,229         142,086     73,061     438,376  

Curtis L. Hartman

    2011   $ 250,956   $ 409,750   $ 218,877   $ 69,195   $ 948,778  

Chief Credit Officer and

    2010     231,848     110,000     264,655     61,897     668,400  

Senior Managing Director

    2009     223,229         112,955     68,488     404,672  

David L. Magdol

    2011   $ 250,956   $ 371,250   $ 218,877   $ 69,195   $ 910,278  

Chief Investment Officer and

    2010     231,848     140,000     264,655     61,897     698,400  

Senior Managing Director

    2009     223,229         112,955     68,488     404,672  

Rodger A. Stout

    2011   $ 239,956   $ 470,250   $ 203,955   $ 68,929   $ 983,090  

Chief Compliance Officer,

    2010     231,848     115,000     251,096     64,129     662,073  

Senior Vice President—

    2009     223,229         112,955     71,769     407,953  

Finance and Treasurer

                                     

(1)
All salaries and cash bonuses are paid by one of our wholly owned subsidiaries, Main Street Capital Partners, LLC.

(2)
These amounts reflect annual cash bonuses earned by the NEOs and were determined based on individual and corporate performance as determined by the Compensation Committee.

(3)
These amounts represent the grant date fair value of stock awards in accordance with FASB ASC Topic 718 based on the closing price of our common stock on the grant date. Pursuant to SEC rules, the amounts shown exclude the impact of estimated forfeitures related to service-based vesting conditions. These amounts do not correspond to the actual value that will be recognized by our NEOs upon the vesting dates of such grants. Please see the discussion of the assumptions made in the valuation of these awards in Note M to the audited consolidated financial statements included in this prospectus.

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(4)
"All Other Compensation" for 2011, 2010 and 2009 includes the following:

Name
  Year   401(k) Employer
Contributions(a)
  Dollar Value of
Dividends on
Unvested
Restricted Stock
  Total  

Vincent D. Foster

    2011   $ 11,025   $ 104,887   $ 115,912  

    2010     11,025     88,299     99,324  

    2009     20,825     59,119     79,944  

Todd A. Reppert

    2011   $ 11,025   $ 80,486   $ 91,511  

    2010     11,025     66,697     77,722  

    2009     20,825     49,894     70,719  

Dwayne L. Hyzak

    2011   $ 10,963   $ 61,900   $ 72,863  

    2010     9,995     56,957     66,952  

    2009     20,825     52,236     73,061  

Curtis L. Hartman

    2011   $ 10,754   $ 58,441   $ 69,195  

    2010     9,995     51,902     61,897  

    2009     20,825     47,663     68,488  

David L. Magdol

    2011   $ 10,754   $ 58,441   $ 69,195  

    2010     9,995     51,902     61,897  

    2009     20,825     47,663     68,488  

Rodger A. Stout

    2011   $ 10,798   $ 58,131   $ 68,929  

    2010     10,443     53,686     64,129  

    2009     20,825     50,944     71,769  

(a)
For 2009, these amounts reflect regular employer matching contributions of $11,025 we made to our 401(k) Plan and an additional, board approved employer matching contribution of $9,800 we made to our 401(k) Plan.

Grants of Plan-Based Awards

        The following table sets forth information regarding restricted stock awards granted to our NEOs in fiscal 2011:

Name
  Grant Date   Stock
Awards;
Number of
Shares of
Stock(1)
  Grant Date
Fair Value
of Stock
Awards
 

Vincent D. Foster

  June 20, 2011     24,081   $ 438,756  

Todd A. Reppert

  June 20, 2011     16,245     295,984  

Dwayne L. Hyzak

  June 20, 2011     12,013     218,877  

Curtis L. Hartman

  June 20, 2011     12,013     218,877  

David L. Magdol

  June 20, 2011     12,013     218,877  

Rodger A. Stout

  June 20, 2011     11,194     203,955  

(1)
All restricted stock grants to NEOs under the 2008 Equity Incentive Plan vest ratably over four years from the grant date.

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Outstanding Equity Awards at Fiscal Year-End

        The following table sets forth the awards of restricted stock for which forfeiture provisions have not lapsed and remain outstanding at December 31, 2011:

 
  Stock Awards  
Name
  Number of
Shares of
Stock that have
not Vested(1)
  Market Value of
Shares of
Stock that have
not Vested(2)
 

Vincent D. Foster

    69,830 (3) $ 1,483,189  

Todd A. Reppert

    51,939 (4)   1,103,184  

Dwayne L. Hyzak

    38,904 (5)   826,321  

Curtis L. Hartman

    37,246 (6)   791,105  

David L. Magdol

    37,246 (7)   791,105  

Rodger A. Stout

    36,381 (8)   772,732  

(1)
No restricted stock awards have been transferred.

(2)
The market value of shares of stock that have not vested was determined based on the closing price of our common stock on the New York Stock Exchange at December 31, 2011.

(3)
6,020 of these shares will vest on June 20, 2012; 22,882 will vest on July 1, 2012; 6,020 shares will vest on June 20, 2013; 15,382 will vest on July 1, 2013; 6,020 shares will vest on June 20, 2014; 7,485 will vest on July 1, 2014; and 6,021 shares will vest on June 20, 2015, subject in each case to the NEO still being employed by us on the respective vesting date.

(4)
4,061 of these shares will vest on June 20, 2012; 18,300 will vest on July 1, 2012; 4,061 shares will vest on June 20, 2013; 10,801 will vest on July 1, 2013; 4,061 shares will vest on June 20, 2014; 6,593 will vest on July 1, 2014; and 4,062 shares will vest on June 20, 2015, subject in each case to the NEO still being employed by us on the respective vesting date.

(5)
3,003 of these shares will vest on June 20, 2012; 15,636 will vest on July 1, 2012; 3,003 shares will vest on June 20, 2013; 6,887 will vest on July 1, 2013; 3,003 shares will vest on June 20, 2014; 4,368 will vest on July 1, 2014; and 3,004 shares will vest on June 20, 2015, subject in each case to the NEO still being employed by us on the respective vesting date.

(6)
3,003 of these shares will vest on June 20, 2012; 14,495 will vest on July 1, 2012; 3,003 shares will vest on June 20, 2013; 6,370 will vest on July 1, 2013; 3,003 shares will vest on June 20, 2014; 4,368 will vest on July 1, 2014; and 3,004 shares will vest on June 20, 2015, subject in each case to the NEO still being employed by us on the respective vesting date.

(7)
3,003 of these shares will vest on June 20, 2012; 14,495 will vest on July 1, 2012; 3,003 shares will vest on June 20, 2013; 6,370 will vest on July 1, 2013; 3,003 shares will vest on June 20, 2014; 4,368 will vest on July 1, 2014; and 3,004 shares will vest on June 20, 2015, subject in each case to the NEO still being employed by us on the respective vesting date.

(8)
2,798 of these shares will vest on June 20, 2012; 14,896 will vest on July 1, 2012; 2,799 shares will vest on June 20, 2013; 6,147 will vest on July 1, 2013; 2,798 shares will vest on June 20, 2014; 4,144 will vest on July 1, 2014; and 2,799 shares will vest on June 20, 2015, subject in each case to the NEO still being employed by us on the respective vesting date.

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Equity Awards Vested in 2011 Fiscal Year

        The following table sets forth information regarding shares of restricted stock for which forfeiture restrictions lapsed during the fiscal year ended December 31, 2011:

 
  Stock Awards  
Name
  Number of Shares
Acquired on Vesting(1)
  Value Realized on
Vesting(2)
 

Vincent D. Foster

    22,882   $ 438,190  

Todd A. Reppert

    18,301     350,464  

Dwayne L. Hyzak

    15,636     299,429  

Curtis L. Hartman

    14,495     277,579  

David L. Magdol

    14,495     277,579  

Rodger A. Stout

    14,896     285,258  

(1)
Number of shares acquired upon vesting is before withholding of vesting shares by the Company to satisfy tax withholding obligations. Each of our NEOs elected to satisfy its tax withholding obligations by having the Company withhold a portion of its vesting shares.

(2)
Value realized upon vesting is based on the closing price of our common stock on the vesting date.

Risk Management and Compensation Policies and Practices

        We believe that risks arising from our compensation policies and practices for our employees are not reasonably likely to have a material adverse effect on the Company. In addition, the Compensation Committee believes that the mix and design of the elements of executive compensation do not encourage management to assume excessive risks.

        The Compensation Committee has reviewed the elements of executive compensation to determine whether any portion of executive compensation encouraged excessive risk taking and concluded:

        Furthermore, as described in our Compensation Discussion and Analysis, compensation decisions include subjective considerations, which restrain the influence of formulae or objective factors on excessive risk taking.


CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

        We co-invested with Main Street Capital II, LP ("MSC II") in several existing portfolio investments prior to our initial public offering (the "IPO"), but did not co-invest with MSC II subsequent to the IPO and prior to June 2008. In June 2008, we received exemptive relief from the SEC to allow us to resume co-investing with MSC II in accordance with the terms of such exemptive relief. The co-investments among us and MSC II have all been made at the same time and on the same

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terms and conditions. The co-investments were also made in accordance with Main Street Capital Partners, LLC's conflicts policy and in accordance with the applicable SBIC conflict of interest regulations. MSC II is managed by Main Street Capital Partners, LLC, and Main Street Capital Partners, LLC is wholly owned by us. MSC II is an SBIC fund with similar investment objectives to us and which began its investment operations in January 2006.

        In January 2010, we acquired (i) 87.7% of the total dollar value of partnership interests in MSC II in exchange for shares of our common stock and (ii) 100% of the membership interest in MSC II's general partner for no consideration (the "Exchange Offer Transactions"). MSC II's general partner owns 0.4% of the total dollar value of the partnership interests in MSC II as its general partner. Subsequent to the Exchange Offer Transactions, we acquired an additional 0.5% of the total dollar value of partnership interests in MSC II in exchange for shares of the Company's common stock based on the same formula used in the Exchange Offer Transactions.

        In February 2012, we acquired an additional 8.5% of the total dollar value of partnership interests of MSC II in exchange for shares of our common stock, including an aggregate of 4.9% from (i) six of our executive officers, Messrs. Foster, Reppert, Hyzak, Hartman, Magdol and Stout and entities controlled by them, and (ii) two of our directors, Messrs. Canon and French, in accordance with the terms and conditions of an exemptive relief order the Company received from the SEC for such transaction (such purchases from our executive officers and directors and entities controlled by them, collectively, the "Affiliate Purchases"). In accordance with the SEC exemptive relief order, and as approved by our Board of Directors, our officers and directors and entities controlled by them received an aggregate 98,632 shares of our common stock with an approximate value of $2.3 million on the date of the transaction in exchange for their partnership interests in MSC II, including (i) Mr. Foster who received 62,010 shares of our common stock with an approximate value of $1.4 million, (ii) Mr. Reppert and an entity controlled by him who received an aggregate 10,878 shares of our common stock with an approximate value of $0.3 million, and (iii) Mr. Canon who received 9,064 shares of our common stock with an approximate value of $0.2 million. Messrs. Hyzak, Hartman, Magdol, Stout and French, or entities controlled by them, each received shares of our common stock valued at less than $120,000 in the Affiliate Purchases. In March 2012, we acquired an additional 3.0% of the total dollar value of partnership interests of MSC II from limited partners not affiliated with us in exchange for shares of our common stock. Including the limited partnership interests acquired in February and March of 2012, we own 100% of the total dollar value of partnership interests in MSC II, including through our 100% ownership of the membership interest in MSC II's general partner.

        In addition, during the year ended December 31, 2011, one of our wholly owned subsidiaries, Main Street Capital Partners, LLC, received $2.5 million from MSC II for providing investment advisory services to MSC II.

        On March 24, 2011, we completed an underwritten public offering of 4,025,000 shares of our common stock at a price of $18.35 per share. The underwriters of this offering were Morgan Keegan & Company, Inc., BB&T Capital Markets, a division of Scott & Stringfellow, LLC, Robert W. Baird & Co. Incorporated, Janney Montgomery Scott LLC and Sanders Morris Harris Inc. Don A. Sanders, who beneficially owned approximately 5% of our common stock at the time of the offering, was the Vice Chairman of Sanders Morris Harris Inc., now known as The Edelman Financial Group Inc. In connection with the offering, Sanders Morris Harris Inc. received underwriting fees of approximately $330,000.

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CONTROL PERSONS AND PRINCIPAL STOCKHOLDERS

        The following table sets forth information with respect to the beneficial ownership of our common stock by:

        Beneficial ownership is determined in accordance with the rules of the SEC and includes voting or investment power with respect to the securities. There is no common stock subject to options that are currently exercisable or exercisable within 60 days of April 2, 2012. Percentage of beneficial ownership is based on 27,061,484 shares of common stock outstanding as of April 2, 2012.

        Unless otherwise indicated, to our knowledge, each stockholder listed below has sole voting and investment power with respect to the shares beneficially owned by the stockholder, and maintains an address c/o Main Street Capital Corporation. Our address is 1300 Post Oak Boulevard, Suite 800, Houston, Texas 77056.

 
  Shares Owned Beneficially  
Name
  Number   Percentage  

Independent Directors:

             

Michael Appling Jr. 

    43,665     *  

Joseph E. Canon

    36,793     *  

Arthur L. French

    28,136 (1)   *  

J. Kevin Griffin

    3,587     *  

William D. Gutermuth(2)

    19,549     *  

Interested Directors:

             

Vincent D. Foster

    1,303,181 (3)   4.82 %

Todd A. Reppert

    717,547 (4)   2.65 %

Executive Officers:

             

Dwayne L. Hyzak

    282,405     1.04 %

Curtis L. Hartman

    220,367 (5)   *  

David L. Magdol

    288,938     1.07 %

Rodger A. Stout

    118,790     *  

Jason B. Beauvais

    25,952     *  

Michael S. Galvan

    16,577     *  

All Directors and Executive Officers as a Group (13 persons)

    3,105,487     11.48 %

*
Less than 1%

(1)
Includes 20,552 shares of common stock held by Flying F, LLC which are beneficially owned by Mr. French.

(2)
As of March 2, 2012, the date Mr. Gutermuth retired from the Board.

(3)
Includes 10,099 shares of common stock held by Foster Irrevocable Trust for the benefit of Mr. Foster's children. Although Mr. Foster is not the trustee, and accordingly does not have voting power or dispositive power over these shares, he may from time to time direct the trustee to vote and dispose of these shares. Also includes 2,932 shares and 2,869 shares held in custodial accounts for Mr. Foster's daughters, Amy Foster and Brittany Foster, respectively.

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(4)
Includes 173,348 shares of common stock held by Reppert Investments Limited Partnership which are beneficially owned by Mr. Reppert.

(5)
Includes 138,947 shares of common stock held in margin accounts or otherwise pledged.

        The following table sets forth, as of April 2, 2012, the dollar range of our equity securities that is beneficially owned by each of our directors.

 
  Dollar Range of Equity
Securities Beneficially
Owned(1)(2)(3)

Interested Directors:

   

Vincent D. Foster

  over $100,000

Todd A. Reppert

  over $100,000

Independent Directors:

   

Michael Appling Jr. 

  over $100,000

Joseph E. Canon

  over $100,000

Arthur L. French

  over $100,000

J. Kevin Griffin

  $50,001 - $100,000

William D. Gutermuth(4)

  over $100,000

(1)
Beneficial ownership has been determined in accordance with Rule 16a-1(a)(2) of the Exchange Act.

(2)
The dollar range of equity securities beneficially owned by our directors is based on a stock price of $24.90 per share as of April 2, 2012.

(3)
The dollar range of equity securities beneficially owned are: none, $1-$10,000, $10,001-$50,000, $50,001-$100,000, or over $100,000.

(4)
As of March 2, 2012, the date Mr. Gutermuth retired from the Board.


SALES OF COMMON STOCK BELOW NET ASSET VALUE

        On June 15, 2011, our common stockholders voted to allow us to issue common stock at any discount from the net asset value (NAV) per share of our common stock for a period of one year ending on June 14, 2012. In order to sell shares pursuant to this authorization:

We are seeking approval of a similar proposal from our stockholders at our 2012 annual stockholders meeting to be held on June 14, 2012.

        We are permitted to sell shares of common stock below NAV per share in rights offerings although we will not do so under this prospectus. Any offering of common stock below NAV per share will be designed to raise capital for investment in accordance with our investment objectives and business strategies.

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        In making a determination that an offering below NAV per share is in our and our stockholders' best interests, our Board of Directors would consider a variety of factors including:

        Sales by us of our common stock at a discount from NAV pose potential risks for our existing stockholders whether or not they participate in the offering, as well as for new investors who participate in the offering.

        The following three headings and accompanying tables will explain and provide hypothetical examples on the impact of an offering at a price less than NAV per share on three different sets of investors:

Impact on Existing Stockholders who do not Participate in the Offering

        Our existing stockholders who do not participate in an offering below NAV per share or who do not buy additional shares in the secondary market at the same or lower price we obtain in the offering (after expenses and commissions) face the greatest potential risks. These stockholders will experience an immediate decrease (often called dilution) in the NAV of the shares they hold and their NAV per share. These stockholders will also experience a disproportionately greater decrease in their participation in our earnings and assets and their voting power than the increase we will experience in our assets, potential earning power and voting interests due to the offering. These stockholders may also experience a decline in the market price of their shares, which often reflects to some degree announced or potential decreases in NAV per share. This decrease could be more pronounced as the size of the offering and level of discount to NAV increases.

        The following table illustrates the level of NAV dilution that would be experienced by a nonparticipating stockholder in three different hypothetical offerings of different sizes and levels of discount from NAV per share. Actual sales prices and discounts may differ from the presentation below.

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        The examples assume that Company XYZ has 1,000,000 common shares outstanding, $15,000,000 in total assets and $5,000,000 in total liabilities. The current NAV and NAV per share are thus $10,000,000 and $10.00. The table illustrates the dilutive effect on nonparticipating Stockholder A of (1) an offering of 50,000 shares (5% of the outstanding shares) at $9.50 per share after offering expenses and commission (a 5% discount from NAV), (2) an offering of 100,000 shares (10% of the outstanding shares) at $9.00 per share after offering expenses and commissions (a 10% discount from NAV) and (3) an offering of 250,000 shares (25% of the outstanding shares) at $8.00 per share after offering expenses and commissions (a 20% discount from NAV). The prospectus supplement pursuant to which any discounted offering is made will include a chart based on the actual number of shares in such offering and the actual discount to the most recently determined NAV.

 
   
  Example 1
5% Offering at
5% Discount
  Example 2
10% Offering at
10% Discount
  Example 3
25% Offering at
20% Discount
 
 
  Prior to
Sale Below
NAV
  Following
Sale
  %
Change
  Following
Sale
  %
Change
  Following
Sale
  %
Change
 

Offering Price

                                           

Price per Share to Public(1)

      $ 10.00       $ 9.47       $ 8.42      

Net Proceeds per Share to Issuer

      $ 9.50       $ 9.00       $ 8.00      

Increase in Shares and Decrease to NAV

                                           

Total Shares Outstanding

    1,000,000     1,050,000     5.00 %   1,100,000     10.00 %   1,250,000     25.00 %

NAV per Share

  $ 10.00   $ 9.98     (0.20 )% $ 9.91     (0.90 )% $ 9.60     (4.00 )%

Dilution to Nonparticipating Stockholder A

                                           

Share Dilution

                                           

Shares Held by Stockholder A

    10,000     10,000         10,000         10,000      

Percentage Outstanding Held by Stockholder A

    1.00 %   0.95 %   (4.76 )%   0.91 %   (9.09 )%   0.80 %   (20.00 )%

NAV Dilution

                                           

Total NAV Held by Stockholder A

  $ 100,000   $ 99,800     (0.20 )% $ 99,100     (0.90 )% $ 96,000     (4.00 )%

Total Investment by Stockholder A (Assumed to be $10.00 per Share)

  $ 100,000   $ 100,000       $ 100,000       $ 100,000      

Total Dilution to Stockholder A (Total NAV Less Total Investment)

        $ (200 )     $ (900 )     $ (4,000 )    

NAV Dilution per Share

                                           

NAV per Share Held by Stockholder A

        $ 9.98       $ 9.91       $ 9.60      

Investment per Share Held by Stockholder A (Assumed to be $10.00 per Share on Shares Held Prior to Sale)

  $ 10.00   $ 10.00       $ 10.00       $ 10.00      

NAV Dilution per Share Experienced by Stockholder A (NAV per Share Less Investment per Share)

        $ (0.02 )     $ (0.09 )     $ (0.40 )    

Percentage NAV Dilution Experienced by Stockholder A (NAV Dilution per Share Divided by Investment per Share)

                (0.20 )%         (0.90 )%         (4.00 )%

(1)
Assumes 5% in selling compensation and expenses paid by us.

Impact on Existing Stockholders who do Participate in the Offering

        Our existing stockholders who participate in an offering below NAV per share or who buy additional shares in the secondary market at the same or lower price as we obtain in the offering (after expenses and commissions) will experience the same types of NAV dilution as the nonparticipating stockholders, albeit at a lower level, to the extent they purchase less than the same percentage of the discounted offering as their interest in our shares immediately prior to the offering. The level of NAV dilution to such stockholders will decrease as the number of shares such stockholders purchase increases. Existing stockholders who buy more than their proportionate percentage will experience NAV dilution but will, in contrast to existing stockholders who purchase less than their proportionate share of the offering, experience an increase (often called accretion) in NAV per share over their investment

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per share and will also experience a disproportionately greater increase in their participation in our earnings and assets and their voting power than our increase in assets, potential earning power and voting interests due to the offering. The level of accretion will increase as the excess number of shares purchased by such stockholder increases. Even a stockholder who over-participates will, however, be subject to the risk that we may make additional discounted offerings in which such stockholder does not participate, in which case such a stockholder will experience NAV dilution as described above in such subsequent offerings. These stockholders may also experience a decline in the market price of their shares, which often reflects to some degree announced or potential decreases in NAV per share. This decrease could be more pronounced as the size of the offering and the level of discount to NAV increases.

        The following chart illustrates the level of dilution and accretion in the hypothetical 25% offering at a 20% discount from the prior chart (Example 3) for a stockholder that acquires shares equal to (1) 50% of its proportionate share of the offering (i.e., 1,250 shares, which is 0.5% of an offering of 250,000 shares rather than its 1.0% proportionate share) and (2) 150% of such percentage (i.e., 3,750 shares, which is 1.5% of an offering of 250,000 shares rather than its 1.0% proportionate share). The prospectus supplement pursuant to which any discounted offering is made will include a chart for this example based on the actual number of shares in such offering and the actual discount from the most recently determined NAV per share.

 
   
  50% Participation   150% Participation  
 
  Prior to
Sale Below
NAV
  Following
Sale
  %
Change
  Following
Sale
  %
Change
 

Offering Price

                               

Price per Share to Public(1)

      $ 8.42       $ 8.42      

Net Proceeds per Share to Issuer

      $ 8.00       $ 8.00      

Increase in Shares and Decrease to NAV

                               

Total Shares Outstanding

    1,000,000     1,250,000     25.00 %   1,250,000     25.00 %

NAV per Share

  $ 10.00   $ 9.60     (4.00 )% $ 9.60     (4.00 )%

Dilution/Accretion to Participating Stockholder A

                               

Share Dilution/Accretion

                               

Shares Held by Stockholder A

    10,000     11,250     12.50 %   13,750     37.50 %

Percentage Outstanding Held by Stockholder A

    1.00 %   0.90 %   (10.00 )%   1.10 %   10.00 %

NAV Dilution/Accretion

                               

Total NAV Held by Stockholder A

  $ 100,000   $ 108,000     8.00 % $ 132,000     32.00 %

Total Investment by Stockholder A (Assumed to be $10.00 per Share on Shares Held Prior to Sale)

      $ 110,525       $ 131,575      

Total Dilution/Accretion to Stockholder A (Total NAV Less Total Investment)

      $ (2,525 )     $ 425      

NAV Dilution/Accretion per Share

                               

NAV per Share Held by Stockholder A

      $ 9.60       $ 9.60      

Investment per Share Held by Stockholder A (Assumed to be $10.00 per Share on Shares Held Prior to Sale)

  $ 10.00   $ 9.82     (1.76 )% $ 9.57     (4.31 )%

NAV Dilution/Accretion per Share Experienced by Stockholder A (NAV per Share Less Investment per Share)

      $ (0.22 )     $ 0.03      

Percentage NAV Dilution/Accretion Experienced by Stockholder A (NAV Dilution/Accretion per Share Divided by Investment per Share)

            (2.28 )%       0.32 %

(1)
Assumes 5% in selling compensation and expenses paid by us.

Impact on New Investors

        Investors who are not currently stockholders, but who participate in an offering below NAV and whose investment per share is greater than the resulting NAV per share due to selling compensation and expenses paid by us will experience an immediate decrease, albeit small, in the NAV of their shares

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and their NAV per share compared to the price they pay for their shares (Example 1 below). On the other hand, investors who are not currently stockholders, but who participate in an offering below NAV per share and whose investment per share is also less than the resulting NAV per share will experience an immediate increase in the NAV of their shares and their NAV per share compared to the price they pay for their shares (Examples 2 and 3 below). These latter investors will experience a disproportionately greater participation in our earnings and assets and their voting power than our increase in assets, potential earning power and voting interests. These investors will, however, be subject to the risk that we may make additional discounted offerings in which such new stockholder does not participate, in which case such new stockholder will experience dilution as described above in such subsequent offerings. These investors may also experience a decline in the market price of their shares, which often reflects to some degree announced or potential decreases in NAV per share. This decrease could be more pronounced as the size of the offering and level of discount to NAV increases.

        The following chart illustrates the level of dilution or accretion for new investors that would be experienced by a new investor in the same hypothetical discounted offerings as described in the first chart above. The illustration is for a new investor who purchases the same percentage (1.00%) of the shares in the offering as Stockholder A in the prior examples held immediately prior to the offering. The prospectus supplement pursuant to which any discounted offering is made will include a chart for these examples based on the actual number of shares in such offering and the actual discount from the most recently determined NAV per share.

 
   
  Example 1
5% Offering at
5% Discount
  Example 2
10% Offering at
10% Discount
  Example 3
25% Offering at
20% Discount
 
 
  Prior to
Sale Below
NAV
  Following
Sale
  %
Change
  Following
Sale
  %
Change
  Following
Sale
  %
Change
 

Offering Price

                                           

Price per Share to Public(1)

      $ 10.00       $ 9.47       $ 8.42      

Net Proceeds per Share to Issuer

      $ 9.50       $ 9.00       $ 8.00      

Increase in Shares and Decrease to NAV

                                           

Total Shares Outstanding

    1,000,000     1,050,000     5.00 %   1,100,000     10.00 %   1,250,000     25.00 %

NAV per Share

  $ 10.00   $ 9.98     (0.20 )% $ 9.91     (0.90 )% $ 9.60     (4.00 )%

Dilution/Accretion to New Investor A

                                           

Share Dilution

                                           

Shares Held by Investor A

        500         1,000         2,500      

Percentage Outstanding Held by Investor A

    0.00 %   0.05 %       0.09 %       0.20 %    

NAV Dilution

                                           

Total NAV Held by Investor A

      $ 4,990       $ 9,910       $ 24,000      

Total Investment by Investor A (At Price to Public)

      $ 5,000       $ 9,470       $ 21,050      

Total Dilution/Accretion to Investor A (Total NAV Less Total Investment)

      $ (10 )     $ 440       $ 2,950      

NAV Dilution per Share

                                           

NAV per Share Held by Investor A

        $ 9.98       $ 9.91       $ 9.60      

Investment per Share Held by Investor A

      $ 10.00       $ 9.47       $ 8.42      

NAV Dilution/Accretion per Share Experienced by Investor A (NAV per Share Less Investment per Share)

      $ (0.02 )     $ 0.44       $ 1.18      

Percentage NAV Dilution/Accretion Experienced by Investor A (NAV Dilution/Accretion per Share Divided by Investment per Share)

            (0.20 )%       4.65 %       14.01 %

(1)
Assumes 5% in selling compensation and expenses paid by us.

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DIVIDEND REINVESTMENT PLAN

        We have adopted a dividend reinvestment plan that provides for the reinvestment of dividends on behalf of our stockholders, unless a stockholder has elected to receive dividends in cash. As a result, if we declare a cash dividend, our stockholders who have not "opted out" of our dividend reinvestment plan by the dividend record date will have their cash dividend automatically reinvested into additional shares of our common stock.

        No action will be required on the part of a registered stockholder to have their cash dividends reinvested in shares of our common stock. A registered stockholder may elect to receive an entire dividend in cash by notifying American Stock Transfer & Trust Company, the plan administrator and our transfer agent and registrar, in writing so that such notice is received by the plan administrator no later than the record date for dividends to stockholders. The plan administrator will set up an account for shares acquired through the plan for each stockholder who has not elected to receive dividends in cash and hold such shares in non-certificated form. Upon request by a stockholder participating in the plan, received in writing not less than 10 days prior to the record date, the plan administrator will, instead of crediting shares to the participant's account, issue a certificate registered in the participant's name for the number of whole shares of our common stock and a check for any fractional share. Those stockholders whose shares are held by a broker or other financial intermediary may receive dividends in cash by notifying their broker or other financial intermediary of their election.

        When the share price is generally trading above net asset value, we intend to primarily use newly issued shares to implement the plan. However, we reserve the right to purchase shares in the open market in connection with our implementation of the plan when our share price is generally trading below net asset value. The number of newly issued shares to be issued to a stockholder is determined by dividing the total dollar amount of the dividend payable to such stockholder by the market price per share of our common stock at the close of regular trading on the New York Stock Exchange on the dividend payment date. Shares purchased in open market transactions by the administrator of the dividend reinvestment plan will be allocated to a stockholder based upon the average purchase price, excluding any brokerage charges or other charges, of all shares of common stock purchased with respect to the dividend. Market price per share on that date will be the closing price for such shares on the New York Stock Exchange or, if no sale is reported for such day, at the average of their reported bid and asked prices. The number of shares of our common stock to be outstanding after giving effect to payment of the dividend cannot be established until the value per share at which additional shares will be issued has been determined and elections of our stockholders have been tabulated.

        There will be no brokerage charges or other charges for dividend reinvestment to stockholders who participate in the plan. We will pay the plan administrator's fees under the plan.

        Stockholders who receive dividends in the form of stock generally are subject to the same federal, state and local tax consequences as are stockholders who elect to receive their dividends in cash. A stockholder's basis for determining gain or loss upon the sale of stock received in a dividend from us will be equal to the total dollar amount of the dividend payable to the stockholder. Any stock received in a dividend will have a holding period for tax purposes commencing on the day following the day on which the shares are credited to the U.S. stockholder's account.

        Participants may terminate their accounts under the plan by notifying the plan administrator via its website at www.amstock.com, by filling out the transaction request form located at the bottom of their statement and sending it to the plan administrator at 59 Maiden Lane New York, New York 10038 or by calling the plan administrators at (212) 936-5100.

        We may terminate the plan upon notice in writing mailed to each participant at least 30 days prior to any record date for the payment of any dividend by us. All correspondence concerning the plan

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should be directed to the plan administrator by mail at 59 Maiden Lane New York, New York 10038 or by telephone at (212) 936-5100.


DESCRIPTION OF CAPITAL STOCK

        The following description is based on relevant portions of the Maryland General Corporation Law and on our articles of incorporation and bylaws. This summary may not contain all of the information that is important to you, and we refer you to the Maryland General Corporation Law and our articles of incorporation and bylaws for a more detailed description of the provisions summarized below.

Capital Stock

        Under the terms of our articles of incorporation, our authorized capital stock consists of 150,000,000 shares of common stock, par value $0.01 per share, of which 27,098,311 shares were outstanding as of May 2, 2012. Set forth below is chart describing the classes of our securities outstanding as of May 2, 2012:

(1)   (2)   (3)   (4)  
Title of Class
  Amount
Authorized
  Amount Held
by us or for
Our Account
  Amount Outstanding
Exclusive of Amount
Under Column 3
 

Common Stock

    150,000,000         27,098,311  

        Under our articles of incorporation, our Board of Directors is authorized to classify and reclassify any unissued shares of stock into other classes or series of stock, and to cause the issuance of such shares, without obtaining stockholder approval. In addition, as permitted by the Maryland General Corporation Law, but subject to the 1940 Act, our articles of incorporation provide that the Board of Directors, without any action by our stockholders, may amend the articles of incorporation from time to time to increase or decrease the aggregate number of shares of stock or the number of shares of stock of any class or series that we have authority to issue. Under Maryland law, our stockholders generally are not personally liable for our debts or obligations.

        All shares of our common stock have equal voting rights and rights to earnings, assets and distributions, except as described below. When shares are issued, upon payment therefor, they will be duly authorized, validly issued, fully paid and nonassessable. Distributions may be paid to the holders of our common stock if, as and when authorized by our Board of Directors and declared by us out of assets legally available therefore. Shares of our common stock have no conversion, exchange, preemptive or redemption rights. In the event of our liquidation, dissolution or winding up, each share of our common stock would be entitled to share ratably in all of our assets that are legally available for distribution after we pay all debts and other liabilities and subject to any preferential rights of holders of our preferred stock, if any preferred stock is outstanding at such time. Each share of our common stock is entitled to one vote on all matters submitted to a vote of stockholders, including the election of directors. Except as provided with respect to any other class or series of stock, the holders of our common stock will possess exclusive voting power. There is no cumulative voting in the election of directors, which means that holders of a majority of the outstanding shares of common stock will elect all of our directors, and holders of less than a majority of such shares will be unable to elect any director.

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        Our articles of incorporation authorize our Board of Directors to classify and reclassify any unissued shares of stock into other classes or series of stock, including preferred stock. Prior to issuance of shares of each class or series, the Board of Directors is required by Maryland law and by our articles of incorporation to set the terms, preferences, conversion or other rights, voting powers, restrictions, limitations as to dividends or other distributions, qualifications and terms or conditions of redemption for each class or series. Thus, the Board of Directors could authorize the issuance of shares of preferred stock with terms and conditions which could have the effect of delaying, deferring or preventing a transaction or a change in control that might involve a premium price for holders of our common stock or otherwise be in their best interest. You should note, however, that any issuance of preferred stock must comply with the requirements of the 1940 Act. The 1940 Act requires, among other things, that (1) immediately after issuance and before any dividend or other distribution is made with respect to our common stock and before any purchase of common stock is made, such preferred stock together with all other senior securities must not exceed an amount equal to 50.0% of our total assets after deducting the amount of such dividend, distribution or purchase price, as the case may be, and (2) the holders of shares of preferred stock, if any are issued, must be entitled as a class to elect two directors at all times and to elect a majority of the directors if distributions on such preferred stock are in arrears by two years or more. Certain matters under the 1940 Act require the separate vote of the holders of any issued and outstanding preferred stock. We believe that the availability for issuance of preferred stock will provide us with increased flexibility in structuring future financings and acquisitions.

Limitation on Liability of Directors and Officers; Indemnification and Advance of Expenses

        Maryland law permits a Maryland corporation to include in its articles of incorporation a provision limiting the liability of its directors and officers to the corporation and its stockholders for money damages except for liability resulting from (a) actual receipt of an improper benefit or profit in money, property or services or (b) active and deliberate dishonesty established by a final judgment as being material to the cause of action. Our articles of incorporation contain such a provision that eliminates directors' and officers' liability to the maximum extent permitted by Maryland law, subject to the requirements of the Investment Company Act of 1940, as amended (the "1940 Act").

        Our articles of incorporation require us, to the maximum extent permitted by Maryland law and subject to the requirements of the 1940 Act, to indemnify any present or former director or officer or any individual who, while a director or officer and at our request, serves or has served another corporation, real estate investment trust, partnership, joint venture, trust, employee benefit plan or other enterprise as a director, officer, partner or trustee, from and against any claim or liability to which such person may become subject or which such person may incur by reason of his or her service in any such capacity, except with respect to any matter as to which such person shall have been finally adjudicated in any proceeding not to have acted in good faith in the reasonable belief that his or her action was in our best interest or to be liable to us or our stockholders by reason of willful misfeasance, bad faith, gross negligence or reckless disregard of the duties involved in the conduct of such person's office.

        Our bylaws obligate us, to the maximum extent permitted by Maryland law and subject to the requirements of the 1940 Act, to indemnify any present or former director or officer or any individual who, while a director or officer and at our request, serves or has served another corporation, real estate investment trust, partnership, joint venture, trust, employee benefit plan or other enterprise as a director, officer, partner or trustee and who is made, or threatened to be made, a party to a proceeding by reason of his or her service in any such capacity from and against any claim or liability to which that person may become subject or which that person may incur by reason of his or her service in any such capacity, except with respect to any matter as to which such person shall have been finally adjudicated

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in any proceeding not to have acted in good faith in the reasonable belief that his or her action was in our best interest or to be liable to us or our stockholders by reason of willful misfeasance, bad faith, gross negligence or reckless disregard of the duties involved in the conduct of such person's office. Our bylaws also require that, to the maximum extent permitted by Maryland law, we may pay certain expenses incurred by any such indemnified person in advance of the final disposition of a proceeding upon receipt of an undertaking by or on behalf of such indemnified person to repay amounts we have so paid if it is ultimately determined that indemnification of such expenses is not authorized under our bylaws.

        Maryland law requires a corporation (unless its articles of incorporation provide otherwise, which our articles of incorporation do not) to indemnify a director or officer who has been successful in the defense of any proceeding to which he or she is made, or threatened to be made, a party by reason of his or her service in that capacity. Maryland law permits a corporation to indemnify its present and former directors and officers, among others, against judgments, penalties, fines, settlements and reasonable expenses actually incurred by them in connection with any proceeding to which they may be made, or threatened to be made, a party by reason of his or her service in those or other capacities unless it is established that (a) the act or omission of the director or officer was material to the matter giving rise to the proceeding and (1) was committed in bad faith or (2) was the result of active and deliberate dishonesty, (b) the director or officer actually received an improper personal benefit in money, property or services or (c) in the case of any criminal proceeding, the director or officer had reasonable cause to believe that the act or omission was unlawful. However, under Maryland law, a Maryland corporation may not indemnify for an adverse judgment in a suit by or in the right of the corporation or for a judgment of liability on the basis that a personal benefit was improperly received, unless in either case a court orders indemnification, and then only for expenses. In addition, Maryland law permits a corporation to advance reasonable expenses to a director or officer upon the corporation's receipt of (a) a written affirmation by the director or officer of his or her good faith belief that he or she has met the standard of conduct necessary for indemnification by the corporation and (b) a written undertaking by him or her or on his or her behalf to repay the amount paid or reimbursed by the corporation if it is ultimately determined that the standard of conduct was not met.

        In addition, we have entered into Indemnity Agreements with our directors and executive officers. The Indemnity Agreements generally provide that we will, to the extent specified in the agreements and to the fullest extent permitted by the 1940 Act and Maryland law as in effect on the day the agreement is executed, indemnify and advance expenses to each indemnitee that is, or is threatened to be made, a party to or a witness in any civil, criminal or administrative proceeding. We will indemnify the indemnitee against all expenses, judgments, fines, penalties and amounts paid in settlement actually and reasonably incurred in connection with any such proceeding unless it is established that (i) the act or omission of the indemnitee was material to the matter giving rise to the proceeding and (a) was committed in bad faith or (b) was the result of active and deliberate dishonesty, (ii) the indemnitee actually received an improper personal benefit, or (iii) in the case of a criminal proceeding, the indemnitee had reasonable cause to believe his conduct was unlawful. Additionally, for so long as we are subject to the 1940 Act, no advancement of expenses will be made until (i) the indemnitee provides a security for his undertaking, (ii) we are insured against losses arising by reason of any lawful advances, or (iii) the majority of a quorum of our disinterested directors, or independent counsel in a written opinion, determine based on a review of readily available facts that there is reason to believe that the indemnitee ultimately will be found entitled to indemnification. The Indemnity Agreements also provide that if the indemnification rights provided for therein are unavailable for any reason, we will pay, in the first instance, the entire amount incurred by the indemnitee in connection with any covered proceeding and waive and relinquish any right of contribution we may have against the indemnitee. The rights provided by the Indemnity Agreements are in addition to any other rights to indemnification or advancement of expenses to which the indemnitee may be entitled under applicable law, our articles of incorporation, our bylaws, any agreement, a vote of stockholders or a resolution of

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directors, or otherwise. No amendment or repeal of the Indemnity Agreements will limit or restrict any right of the indemnitee in respect of any action taken or omitted by the indemnitee prior to such amendment or repeal. The Indemnity Agreements will terminate upon the later of (i) ten years after the date the indemnitee has ceased to serve as our director or officer, or (ii) one year after the final termination of any proceeding for which the indemnitee is granted rights of indemnification or advancement of expenses or which is brought by the indemnitee. The above description of the Indemnity Agreements is subject to, and is qualified in its entirety by reference to, all the provisions of the form of Indemnity Agreement.

        We have obtained primary and excess insurance policies insuring our directors and officers against certain liabilities they may incur in their capacity as directors and officers. Under such policies, the insurer, on our behalf, may also pay amounts for which we have granted indemnification to the directors or officers.

Provisions of the Maryland General Corporation Law and Our Articles of Incorporation and Bylaws

        The Maryland General Corporation Law and our articles of incorporation and bylaws contain provisions that could make it more difficult for a potential acquiror to acquire us by means of a tender offer, proxy contest or otherwise. These provisions are expected to discourage certain coercive takeover practices and inadequate takeover bids and to encourage persons seeking to acquire control of us to negotiate first with our Board of Directors. We believe that the benefits of these provisions outweigh the potential disadvantages of discouraging any such acquisition proposals because, among other things, the negotiation of such proposals may improve their terms.

        Our bylaws currently provide that directors are elected by a plurality of the votes cast in the election of directors. Pursuant to our articles of incorporation and bylaws, our Board of Directors may amend the bylaws to alter the vote required to elect directors.

        Our articles of incorporation provide that the number of directors will be set only by the Board of Directors in accordance with our bylaws. Our bylaws provide that a majority of our entire Board of Directors may at any time increase or decrease the number of directors. However, unless the bylaws are amended, the number of directors may never be less than one or more than twelve. We have elected to be subject to the provision of Subtitle 8 of Title 3 of the Maryland General Corporation Law regarding the filling of vacancies on the Board of Directors. Accordingly, at such time, except as may be provided by the Board of Directors in setting the terms of any class or series of preferred stock, any and all vacancies on the Board of Directors may be filled only by the affirmative vote of a majority of the remaining directors in office, even if the remaining directors do not constitute a quorum, and any director elected to fill a vacancy shall serve for the remainder of the full term of the directorship in which the vacancy occurred and until a successor is elected and qualifies, subject to any applicable requirements of the 1940 Act. Our articles of incorporation provide that a director may be removed only for cause, as defined in the articles of incorporation, and then only by the affirmative vote of at least two-thirds of the votes entitled to be cast in the election of directors.

        Under the Maryland General Corporation Law, stockholder action may be taken only at an annual or special meeting of stockholders or by unanimous consent in lieu of a meeting (unless the articles of incorporation provide for stockholder action by less than unanimous written consent, which our articles of incorporation do not). These provisions, combined with the requirements of our bylaws regarding

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the calling of a stockholder-requested special meeting of stockholders discussed below, may have the effect of delaying consideration of a stockholder proposal until the next annual meeting.

        Our bylaws provide that with respect to an annual meeting of stockholders, nominations of persons for election to the Board of Directors and the proposal of business to be considered by stockholders may be made only (1) pursuant to our notice of the meeting, (2) by the Board of Directors or (3) by a stockholder who is entitled to vote at the meeting and who has complied with the advance notice procedures of the bylaws. With respect to special meetings of stockholders, only the business specified in our notice of the meeting may be brought before the meeting. Nominations of persons for election to the Board of Directors at a special meeting may be made only (1) pursuant to our notice of the meeting, (2) by the Board of Directors or (3) provided that the Board of Directors has determined that directors will be elected at the meeting, by a stockholder who is entitled to vote at the meeting and who has complied with the advance notice provisions of the bylaws.

        The purpose of requiring stockholders to give us advance notice of nominations and other business is to afford our Board of Directors a meaningful opportunity to consider the qualifications of the proposed nominees and the advisability of any other proposed business and, to the extent deemed necessary or desirable by our Board of Directors, to inform stockholders and make recommendations about such qualifications or business, as well as to provide a more orderly procedure for conducting meetings of stockholders. Although our bylaws do not give our Board of Directors any power to disapprove stockholder nominations for the election of directors or proposals recommending certain action, they may have the effect of precluding a contest for the election of directors or the consideration of stockholder proposals if proper procedures are not followed and of discouraging or deterring a third party from conducting a solicitation of proxies to elect its own slate of directors or to approve its own proposal without regard to whether consideration of such nominees or proposals might be harmful or beneficial to us and our stockholders.

        Our bylaws provide that special meetings of stockholders may be called by our Board of Directors and certain of our officers. Additionally, our bylaws provide that, subject to the satisfaction of certain procedural and informational requirements by the stockholders requesting the meeting, a special meeting of stockholders shall be called by our secretary upon the written request of stockholders entitled to cast not less than a majority of all of the votes entitled to be cast at such meeting.

        Under Maryland law, a Maryland corporation generally cannot dissolve, amend its articles of incorporation, merge, sell all or substantially all of its assets, engage in a share exchange or engage in similar transactions outside the ordinary course of business, unless approved by the affirmative vote of stockholders entitled to cast at least two-thirds of the votes entitled to be cast on the matter. However, a Maryland corporation may provide in its articles of incorporation for approval of these matters by a lesser percentage, but not less than a majority of all of the votes entitled to be cast on the matter. Our articles of incorporation generally provide for approval of amendments to our articles of incorporation and extraordinary transactions by the stockholders entitled to cast at least a majority of the votes entitled to be cast on the matter. Our articles of incorporation also provide that certain amendments and any proposal for our conversion, whether by merger or otherwise, from a closed-end company to an open-end company or any proposal for our liquidation or dissolution requires the approval of the stockholders entitled to cast at least 75.0% of the votes entitled to be cast on such matter. However, if such amendment or proposal is approved by at least 75.0% of our continuing directors (in addition to approval by our Board of Directors), such amendment or proposal may be approved by the

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stockholders entitled to cast a majority of the votes entitled to be cast on such a matter. The "continuing directors" are defined in our articles of incorporation as our current directors, as well as those directors whose nomination for election by the stockholders or whose election by the directors to fill vacancies is approved by a majority of the continuing directors then on the Board of Directors.

        Our articles of incorporation and bylaws provide that the Board of Directors will have the exclusive power to make, alter, amend or repeal any provision of our bylaws.

        Except with respect to appraisal rights arising in connection with the Maryland Control Share Acquisition Act, or Control Share Act, discussed below, as permitted by the Maryland General Corporation Law, our articles of incorporation provide that stockholders will not be entitled to exercise appraisal rights.

        The Control Share Act provides that control shares of a Maryland corporation acquired in a control share acquisition have no voting rights except to the extent approved by a vote of two-thirds of the votes entitled to be cast on the matter. Shares owned by the acquiror, by officers or by directors who are employees of the corporation are excluded from shares entitled to vote on the matter. Control shares are voting shares of stock which, if aggregated with all other shares of stock owned by the acquiror or in respect of which the acquiror is able to exercise or direct the exercise of voting power (except solely by virtue of a revocable proxy), would entitle the acquiror to exercise voting power in electing directors within one of the following ranges of voting power:

        The requisite stockholder approval must be obtained each time an acquiror crosses one of the thresholds of voting power set forth above. Control shares do not include shares the acquiring person is then entitled to vote as a result of having previously obtained stockholder approval. A control share acquisition means the acquisition of control shares, subject to certain exceptions.

        A person who has made or proposes to make a control share acquisition may compel the board of directors of the corporation to call a special meeting of stockholders to be held within 50 days of demand to consider the voting rights of the shares. The right to compel the calling of a special meeting is subject to the satisfaction of certain conditions, including an undertaking to pay the expenses of the meeting. If no request for a meeting is made, the corporation may itself present the question at any stockholders meeting.

        If voting rights are not approved at the meeting or if the acquiring person does not deliver an acquiring person statement as required by the statute, then the corporation may repurchase for fair value any or all of the control shares, except those for which voting rights have previously been approved. The right of the corporation to repurchase control shares is subject to certain conditions and limitations. Fair value is determined, without regard to the absence of voting rights for the control shares, as of the date of the last control share acquisition by the acquiror or of any meeting of stockholders at which the voting rights of the shares are considered and not approved. If voting rights for control shares are approved at a stockholders meeting and the acquiror becomes entitled to vote a majority of the shares entitled to vote, all other stockholders may exercise appraisal rights. The fair value of the shares as determined for purposes of appraisal rights may not be less than the highest price per share paid by the acquiror in the control share acquisition.

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        The Control Share Act does not apply (a) to shares acquired in a merger, consolidation or share exchange if the corporation is a party to the transaction or (b) to acquisitions approved or exempted by the articles of incorporation or bylaws of the corporation.

        Our bylaws contain a provision exempting from the Control Share Act any and all acquisitions by any person of our shares of stock. There can be no assurance that such provision will not be otherwise amended or eliminated at any time in the future. However, we will amend our bylaws to be subject to the Control Share Act only if the Board of Directors determines that it would be in our best interests and if the staff of the SEC does not object to our determination that our being subject to the Control Share Act does not conflict with the 1940 Act.

        Under the Maryland Business Combination Act, or the Business Combination Act, "business combinations" between a Maryland corporation and an interested stockholder or an affiliate of an interested stockholder are prohibited for five years after the most recent date on which the interested stockholder becomes an interested stockholder. These business combinations include a merger, consolidation, share exchange or, in circumstances specified in the statute, an asset transfer or issuance or reclassification of equity securities. An interested stockholder is defined as:

        A person is not an interested stockholder under this statute if the board of directors approved in advance the transaction by which such stockholder otherwise would have become an interested stockholder. However, in approving a transaction, the board of directors may provide that its approval is subject to compliance, at or after the time of approval, with any terms and conditions determined by the board.

        After the five-year prohibition, any business combination between the Maryland corporation and an interested stockholder generally must be recommended by the board of directors of the corporation and approved by the affirmative vote of at least:

        These super-majority vote requirements do not apply if the corporation's common stockholders receive a minimum price, as defined under Maryland law, for their shares in the form of cash or other consideration in the same form as previously paid by the interested stockholder for its shares.

        The statute permits various exemptions from its provisions, including business combinations that are exempted by the board of directors before the time that the interested stockholder becomes an interested stockholder. Our Board of Directors has adopted a resolution exempting any business combination between us and any other person from the provisions of the Business Combination Act, provided that the business combination is first approved by the Board of Directors, including a majority of the directors who are not interested persons as defined in the 1940 Act. This resolution, however, may be altered or repealed in whole or in part at any time. If these resolutions are repealed, or the

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Board of Directors does not otherwise approve a business combination, the statute may discourage others from trying to acquire control of us and increase the difficulty of consummating any offer.

        Our bylaws provide that, if and to the extent that any provision of the Maryland General Corporation Law, or any provision of our articles of incorporation or bylaws conflicts with any provision of the 1940 Act, the applicable provision of the 1940 Act will control.

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MATERIAL U.S. FEDERAL INCOME TAX CONSIDERATIONS

        The following discussion is a general summary of the material U.S. federal income tax considerations applicable to us and to an investment in our shares. This summary does not purport to be a complete description of the income tax considerations applicable to such an investment. For example, we have not described tax consequences that may be relevant to certain types of holders subject to special treatment under U.S. federal income tax laws, including stockholders subject to the alternative minimum tax, tax-exempt organizations, insurance companies, dealers in securities, pension plans and trusts, and financial institutions. This summary assumes that investors hold our common stock as capital assets (within the meaning of the Code). The discussion is based upon the Code, Treasury regulations, and administrative and judicial interpretations, each as of the date of this prospectus and all of which are subject to change, possibly retroactively, which could affect the continuing validity of this discussion. We have not sought and will not seek any ruling from the Internal Revenue Service regarding this offering. This summary does not discuss any aspects of U.S. estate or gift tax or foreign, state or local tax. It does not discuss the special treatment under U.S. federal income tax laws that could result if we invested in tax-exempt securities or certain other investment assets.

        A "U.S. stockholder" generally is a beneficial owner of shares of our common stock who is for U.S. federal income tax purposes:

        A "Non-U.S. stockholder" generally is a beneficial owner of shares of our common stock that is not a U.S. stockholder.

        If a partnership (including an entity treated as a partnership for U.S. federal income tax purposes) holds shares of our common stock, the tax treatment of a partner in the partnership will generally depend upon the status of the partner and the activities of the partnership. A prospective stockholder that is a partner of a partnership holding shares of our common stock should consult his, her or its tax advisers with respect to the purchase, ownership and disposition of shares of our common stock.

        Tax matters are very complicated and the tax consequences to an investor of an investment in our shares will depend on the facts of his, her or its particular situation. We encourage investors to consult their own tax advisers regarding the specific consequences of such an investment, including tax reporting requirements, the applicability of federal, state, local and foreign tax laws, eligibility for the benefits of any applicable tax treaty and the effect of any possible changes in the tax laws.

Election to be Taxed as a Regulated Investment Company

        MSCC has elected to be treated for federal income tax purposes as a regulated investment company ("RIC") under Subchapter M of the Internal Revenue Code (the "Code") commencing October 2, 2007. As a RIC, we generally do not have to pay corporate level federal income taxes on any income that we distribute to our stockholders as dividends. To qualify as a RIC, we must, among other things, meet certain source-of-income and asset diversification requirements (as described below). In addition, in order to obtain RIC tax treatment, we must distribute to our stockholders, for each

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taxable year, at least 90% of our "investment company taxable income," which is generally our net ordinary income plus the excess of realized net short-term capital gains over realized net long-term capital losses (the "Annual Distribution Requirement").

Taxation as a Regulated Investment Company

        For any taxable year in which we qualify as a RIC and satisfy the Annual Distribution Requirement, we will not be subject to federal income tax on the portion of our income we distribute (or are deemed to distribute) to stockholders. We will be subject to U.S. federal income tax at the regular corporate rates on any income or capital gains not distributed (or deemed distributed) to our stockholders.

        We will be subject to a 4% nondeductible federal excise tax on certain undistributed income unless we distribute in a timely manner an amount at least equal to the sum of (1) 98% of our net ordinary income for each calendar year, (2) 98.2% of our capital gain net income for the one-year period ending December 31 in that calendar year and (3) any income recognized, but not distributed, in preceding years (the "Excise Tax Avoidance Requirement"). Dividends declared and paid by us in a year will generally differ from taxable income for that year as such dividends may include the distribution of current year taxable income, exclude amounts carried over into the following year, and include the distribution of prior year taxable income carried over into and distributed in the current year. For amounts we carry over into the following year, we will be required to pay the 4% excise tax based on 98% of our annual taxable income in excess of distributions for the year.

        In order to qualify as a RIC for federal income tax purposes, we must, among other things:

        In order to comply with the 90% Income Test, we formed the Taxable Subsidiaries as wholly owned taxable subsidiaries, for the primary purpose of permitting us to own equity interests in portfolio companies which are "pass through" entities for tax purposes. Absent the taxable status of the Taxable Subsidiaries, a portion of the gross income from such portfolio companies would flow directly to us for purposes of the 90% Income Test. To the extent such income did not consist of income derived from securities, such as dividends and interest, it could jeopardize our ability to qualify as a RIC and, therefore cause us to incur significant federal income taxes. The Taxable Subsidiaries are consolidated with Main Street for GAAP purposes, and the portfolio investments held by the Taxable Subsidiaries are included in our consolidated financial statements. The Taxable Subsidiaries are not consolidated with Main Street for income tax purposes and may generate income tax expense as a result of their ownership of the portfolio investments. This income tax expense, if any, is reflected in our Consolidated Statement of Operations.

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        We may be required to recognize taxable income in circumstances in which we do not receive cash. For example, if we hold debt obligations that are treated under applicable tax rules as having original issue discount (such as debt instruments issued with warrants), we must include in income each year a portion of the original issue discount that accrues over the life of the obligation, regardless of whether cash representing such income is received by us in the same taxable year. We may also have to include in income other amounts that we have not yet received in cash, such as PIK interest and deferred loan origination fees that are paid after origination of the loan or are paid in non-cash compensation such as warrants or stock. Because any original issue discount or other amounts accrued will be included in our investment company taxable income for the year of accrual, we may be required to make a distribution to our stockholders in order to satisfy the Annual Distribution Requirement, even though we will not have received any corresponding cash amount.

        Although we do not presently expect to do so, we are authorized to borrow funds and to sell assets in order to satisfy distribution requirements. However, under the 1940 Act, we are not permitted to make distributions to our stockholders in certain circumstances while our debt obligations and other senior securities are outstanding unless certain "asset coverage" tests are met. See "Regulation—Regulation as a Business Development Company—Senior Securities." Moreover, our ability to dispose of assets to meet our distribution requirements may be limited by (1) the illiquid nature of our portfolio and/or (2) other requirements relating to our status as a RIC, including the Diversification Tests. If we dispose of assets in order to meet the Annual Distribution Requirement or the Excise Tax Avoidance Requirement, we may make such dispositions at times that, from an investment standpoint, are not advantageous.

        We may distribute taxable dividends that are payable in cash or shares of our common stock at the election of each stockholder. Under certain applicable provisions of the Code and the Treasury regulations, distributions payable in cash or in shares of stock at the election of stockholders are treated as taxable dividends. The Internal Revenue Service has issued private rulings indicating that this rule will apply even where the total amount of cash that may be distributed is limited to no more than 20% of the total distribution. Under these rulings, if too many stockholders elect to receive their distributions in cash, each such stockholder would receive a pro rata share of the total cash to be distributed and would receive the remainder of their distribution in shares of stock. If we decide to make any distributions consistent with these rulings that are payable in part in our stock, taxable stockholders receiving such dividends will be required to include the full amount of the dividend (whether received in cash, our stock, or a combination thereof) as ordinary income (or as long-term capital gain to the extent such distribution is properly reported as a capital gain dividend) to the extent of our current and accumulated earnings and profits for United States federal income tax purposes. As a result, a U.S. stockholder may be required to pay tax with respect to such dividends in excess of any cash received. If a U.S. stockholder sells the stock it receives in order to pay this tax, the sales proceeds may be less than the amount included in income with respect to the dividend, depending on the market price of our stock at the time of the sale. Furthermore, with respect to non-U.S. stockholders, we may be required to withhold U.S. tax with respect to such dividends, including in respect of all or a portion of such dividend that is payable in stock. In addition, if a significant number of our stockholders determine to sell shares of our stock in order to pay taxes owed on dividends, it may put downward pressure on the trading price of our stock.

        The remainder of this discussion assumes that we qualify as a RIC and have satisfied the Annual Distribution Requirement.

Taxation of U.S. Stockholders

        Distributions by us generally are taxable to U.S. stockholders as ordinary income or capital gains. Distributions of our "investment company taxable income" (which is, generally, our net ordinary income plus realized net short-term capital gains in excess of realized net long-term capital losses) will be taxable as ordinary income to U.S. stockholders to the extent of our current or accumulated

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earnings and profits, whether paid in cash or reinvested in additional common stock. To the extent such distributions paid by us to non-corporate stockholders (including individuals) are attributable to dividends from U.S. corporations and certain qualified foreign corporations, such distributions ("Qualifying Dividends") may be eligible for a maximum tax rate of 15.0% for taxable years beginning on or before December 31, 2012. In this regard, it is anticipated that distributions paid by us will generally not be attributable to dividends and, therefore, generally will not qualify for the 15.0% maximum rate applicable to Qualifying Dividends. Distributions of our net capital gains (which is generally our realized net long-term capital gains in excess of realized net short-term capital losses) properly designated by us as "capital gain dividends" will be taxable to a U.S. stockholder as long-term capital gains that are currently taxable at a maximum rate of 15.0% in the case of individuals, trusts or estates, regardless of the U.S. stockholder's holding period for his, her or its common stock and regardless of whether paid in cash or reinvested in additional common stock. Distributions in excess of our earnings and profits first will reduce a U.S. stockholder's adjusted tax basis in such stockholder's common stock and, after the adjusted basis is reduced to zero, will constitute capital gains to such U.S. stockholder.

        We may retain some or all of our realized net long-term capital gains in excess of realized net short-term capital losses, but to designate the retained net capital gain as a "deemed distribution." In that case, among other consequences, we will pay tax on the retained amount, each U.S. stockholder will be required to include his, her or its share of the deemed distribution in income as if it had been actually distributed to the U.S. stockholder, and the U.S. stockholder will be entitled to claim a credit equal to his, her or its allocable share of the tax paid thereon by us. Because we expect to pay tax on any retained capital gains at our regular corporate tax rate, and because that rate is in excess of the maximum rate currently payable by individuals on long-term capital gains, the amount of tax that individual U.S. stockholders will be treated as having paid will exceed the tax they owe on the capital gain distribution and such excess generally may be refunded or claimed as a credit against the U.S. stockholder's other U.S. federal income tax obligations. The amount of the deemed distribution net of such tax will be added to the U.S. stockholder's cost basis for his, her or its common stock. In order to utilize the deemed distribution approach, we must provide written notice to our stockholders prior to the expiration of 60 days after the close of the relevant taxable year. We cannot treat any of our investment company taxable income as a "deemed distribution."

        In any fiscal year, we may elect to make distributions to our stockholders in excess of our taxable earnings for that fiscal year. As a result, a portion of those distributions may be deemed a return of capital to our stockholders.

        For purposes of determining (1) whether the Annual Distribution Requirement is satisfied for any year and (2) the amount of capital gain dividends paid for that year, we may, under certain circumstances, elect to treat a dividend that is paid during the following taxable year as if it had been paid during the taxable year in question. If we make such an election, the U.S. stockholder will still be treated as receiving the dividend in the taxable year in which the distribution is made. However, any dividend declared by us in October, November or December of any calendar year, payable to stockholders of record on a specified date in such a month and actually paid during January of the following year, will be treated as if it had been received by our U.S. stockholders on December 31 of the year in which the dividend was declared.

        If an investor purchases shares of our common stock shortly before the record date of a distribution, the price of the shares will include the value of the distribution and the investor will be subject to tax on the distribution even though economically it may represent a return of his, her or its investment.

        A stockholder generally will recognize taxable gain or loss if the stockholder sells or otherwise disposes of his, her or its shares of our common stock. The amount of gain or loss will be measured by the difference between such stockholder's adjusted tax basis in the common stock sold and the amount of the proceeds received in exchange. Any gain arising from such sale or disposition generally will be

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treated as long-term capital gain or loss if the stockholder has held his, her or its shares for more than one year. Otherwise, it will be classified as short-term capital gain or loss. However, any capital loss arising from the sale or disposition of shares of our common stock held for six months or less will be treated as long-term capital loss to the extent of the amount of capital gain dividends received, or undistributed capital gain deemed received, with respect to such shares. In addition, all or a portion of any loss recognized upon a disposition of shares of our common stock may be disallowed if other shares of our common stock are purchased (whether through reinvestment of distributions or otherwise) within 30 days before or after the disposition.

        In general, individual U.S. stockholders currently are subject to a maximum federal income tax rate of 15.0% on their net capital gain (i.e., the excess of realized net long-term capital gains over realized net short-term capital losses), including any long-term capital gain derived from an investment in our shares, for taxable years beginning on or before December 31, 2012. Such rate is lower than the maximum rate on ordinary income currently payable by individuals. In addition, for taxable years beginning after December 31, 2012, individuals with income in excess of $200,000 ($250,000 in the case of married individuals filing jointly) and certain estates and trusts are subject to an additional 3.8% tax on their "net investment income," which generally includes net income from interest, dividends, annuities, royalties, and rents, and net capital gains (other than certain amounts earned from trades or businesses). Corporate U.S. stockholders currently are subject to federal income tax on net capital gain at the maximum 35.0% rate also applied to ordinary income. Non-corporate stockholders with net capital losses for a year (i.e., capital losses in excess of capital gains) generally may deduct up to $3,000 of such losses against their ordinary income each year; any net capital losses of a non-corporate stockholder in excess of $3,000 generally may be carried forward and used in subsequent years as provided in the Code. Corporate stockholders generally may not deduct any net capital losses for a year, but may carryback such losses for three years or carry forward such losses for five years.

        We will send to each of our U.S. stockholders, as promptly as possible after the end of each calendar year, a notice detailing, on a per share and per distribution basis, the amounts includible in such U.S. stockholder's taxable income for such year as ordinary income and as long-term capital gain. In addition, the federal tax status of each year's distributions generally will be reported to the Internal Revenue Service (including the amount of dividends, if any, eligible for the 15.0% maximum rate for taxable years beginning on or before December 31, 2012). Dividends paid by us generally will not be eligible for the dividends-received deduction or the preferential tax rate applicable to Qualifying Dividends because our income generally will not consist of dividends. Distributions may also be subject to additional state, local and foreign taxes depending on a U.S. stockholder's particular situation.

        As a RIC, we will be subject to the alternative minimum tax ("AMT"), but any items that are treated differently for AMT purposes must be apportioned between us and our stockholders and this may affect the stockholders' AMT liabilities. Although regulations explaining the precise method of apportionment have not yet been issued by the Internal Revenue Service, we intend in general to apportion these items in the same proportion that dividends paid to each stockholder bear to our taxable income (determined without regard to the dividends paid deduction), unless we determine that a different method for a particular item is warranted under the circumstances.

        We may be required to withhold federal income tax ("backup withholding") from all taxable distributions to any U.S. stockholder that is not otherwise exempt (1) who fails to furnish us with a correct taxpayer identification number or a certificate that such stockholder is exempt from backup withholding or (2) with respect to whom the IRS notifies us that such stockholder has failed to properly report certain interest and dividend income to the IRS and to respond to notices to that effect. An individual's taxpayer identification number is his or her social security number. Any amount withheld under backup withholding is allowed as a credit against the U.S. stockholder's federal income tax liability, provided that proper information is provided to the IRS.

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Taxation of Non-U.S. Stockholders

        Whether an investment in the shares is appropriate for a Non-U.S. stockholder will depend upon that person's particular circumstances. An investment in the shares by a Non-U.S. stockholder may have adverse tax consequences. Non-U.S. stockholders should consult their tax advisers before investing in our common stock.

        Distributions of our "investment company taxable income" to Non-U.S. stockholders (including interest income and realized net short-term capital gains in excess of realized long-term capital losses, which generally would be free of withholding if paid to Non-U.S. stockholders directly) will be subject to withholding of federal tax at a 30.0% rate (or lower rate provided by an applicable treaty) to the extent of our current and accumulated earnings and profits unless an applicable exception applies. If the distributions are effectively connected with a U.S. trade or business of the Non-U.S. stockholder, and, if an income tax treaty applies, attributable to a permanent establishment in the United States, we will not be required to withhold federal tax if the Non-U.S. stockholder complies with applicable certification and disclosure requirements, although the distributions will be subject to federal income tax at the rates applicable to U.S. persons. (Special certification requirements apply to a Non-U.S. stockholder that is a foreign partnership or a foreign trust, and such entities are urged to consult their own tax advisers.)

        For taxable years beginning prior to January 1, 2012, except as provided below, we generally were not required to withhold any amounts with respect to certain distributions of (i) U.S.-source interest income, and (ii) net short-term capital gains in excess of net long-term capital losses, in each case to the extent we properly reported such distributions and certain other requirements were satisfied. This special exemption from withholding tax on certain distributions expired on January 1, 2012. No assurance can be given as to whether this exemption will be extended for taxable years beginning on or after January 1, 2012, or whether any of our distributions would be reported as eligible for this special exemption from withholding tax even if extended. Currently, we do not anticipate that any significant amount of our distributions would be reported as eligible for this exemption from withholding.

        Actual or deemed distributions of our net capital gains to a Non-U.S. stockholder, and gains realized by a Non-U.S. stockholder upon the sale of our common stock, will not be subject to federal withholding tax and generally will not be subject to federal income tax unless the distributions or gains, as the case may be, are effectively connected with a U.S. trade or business of the Non-U.S. stockholder and, if an income tax treaty applies, are attributable to a permanent establishment maintained by the Non-U.S. stockholder in the United States.

        If we distribute our net capital gains in the form of deemed rather than actual distributions, a Non-U.S. stockholder will be entitled to a federal income tax credit or tax refund equal to the stockholder's allocable share of the tax we pay on the capital gains deemed to have been distributed. In order to obtain the refund, the Non-U.S. stockholder must obtain a U.S. taxpayer identification number and file a federal income tax return even if the Non-U.S. stockholder would not otherwise be required to obtain a U.S. taxpayer identification number or file a federal income tax return. For a corporate Non-U.S. stockholder, distributions (both actual and deemed), and gains realized upon the sale of our common stock that are effectively connected to a U.S. trade or business may, under certain circumstances, be subject to an additional "branch profits tax" at a 30.0% rate (or at a lower rate if provided for by an applicable treaty). Accordingly, investment in the shares may not be appropriate for a Non-U.S. stockholder.

        A Non-U.S. stockholder who is a non-resident alien individual, and who is otherwise subject to withholding of federal tax, may be subject to information reporting and backup withholding of federal income tax on dividends unless the Non-U.S. stockholder provides us or the dividend paying agent with an IRS Form W-8BEN (or an acceptable substitute form) or otherwise meets documentary evidence requirements for establishing that it is a Non-U.S. stockholder or otherwise establishes an exemption from backup withholding.

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        Recently enacted legislation, generally imposes a 30% withholding tax on payments of certain types of income to foreign financial institutions that fail to enter into an agreement with the United States Treasury to report certain required information with respect to accounts held by United States persons (or held by foreign entities that have United States persons as substantial owners). The types of income subject to the tax include U.S. source interest and dividends received after December 31, 2013, and the gross proceeds from the sale of any property that could produce U.S.-source interest or dividends paid after December 31, 2014. The information required to be reported includes the identity and taxpayer identification number of each account holder that is a U.S. person and transaction activity within the holder's account. In addition, subject to certain exceptions, this legislation also imposes a 30% withholding on payments to foreign entities that are not financial institutions unless the foreign entity certifies that it does not have a greater than 10% U.S. owner or provides the withholding agent with identifying information on each greater than 10% U.S. owner. When these provisions become effective, depending on the status of a Non-U.S. stockholder and the status of the intermediaries through which they hold their units, Non-U.S. stockholders could be subject to this 30% withholding tax with respect to distributions on their units and proceeds from the sale of their units. Under certain circumstances, a Non-U.S. stockholder might be eligible for refunds or credits of such taxes.

        Non-U.S. persons should consult their own tax advisers with respect to the U.S. federal income tax and withholding tax, and state, local and foreign tax consequences of an investment in the shares.

Failure to Qualify as a RIC

        If we fail to satisfy the 90% Income Test or the Diversification Tests for any taxable year, we may nevertheless continue to qualify as a RIC for such year if certain relief provisions are applicable (which may, among other things, require us to pay certain corporate-level federal taxes or to dispose of certain assets).

        If we were unable to qualify for treatment as a RIC and the foregoing relief provisions are not applicable, we would be subject to tax on all of our taxable income at regular corporate rates. We would not be able to deduct distributions to stockholders, nor would they be required to be made. Such distributions (if made in a taxable year beginning on or before December 31, 2012) would be taxable to our stockholders and, provided certain holding period and other requirements were met, could qualify for treatment as "qualified dividend income" eligible for the 15% maximum rate to the extent of our current and accumulated earnings and profits. Subject to certain limitations under the Code, corporate distributions would be eligible for the dividends-received deduction. Distributions in excess of our current and accumulated earnings and profits would be treated first as a return of capital to the extent of the stockholder's tax basis, and any remaining distributions would be treated as a capital gain. To requalify as a RIC in a subsequent taxable year, we would be required to satisfy the RIC qualification requirements for that year and dispose of any earnings and profits from any year in which we failed to qualify as a RIC. Subject to a limited exception applicable to RICs that qualified as such under Subchapter M of the Code for at least one year prior to disqualification and that requalify as a RIC no later than the second year following the nonqualifying year, we could be subject to tax on any unrealized net built-in gains in the assets held by us during the period in which we failed to qualify as a RIC that are recognized within the subsequent 10 years, unless we made a special election to pay corporate-level tax on such built-in gain at the time of our requalification as a RIC.


REGULATION

        We have elected to be regulated as a BDC under the 1940 Act. The 1940 Act contains prohibitions and restrictions relating to transactions between BDCs and their affiliates, principal underwriters and affiliates of those affiliates or underwriters. The 1940 Act requires that a majority of the members of

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the board of directors of a BDC be persons other than "interested persons," as that term is defined in the 1940 Act. In addition, the 1940 Act provides that we may not change the nature of our business so as to cease to be, or to withdraw our election as, a BDC unless approved by a majority of our outstanding voting securities.

        The 1940 Act defines "a majority of the outstanding voting securities" as the lesser of (i) 67% or more of the voting securities present at a meeting if the holders of more than 50% of our outstanding voting securities are present or represented by proxy or (ii) more than 50% of our outstanding voting securities.

        Under the 1940 Act, a BDC may not acquire any asset other than assets of the type listed in Section 55(a) of the 1940 Act, which are referred to as qualifying assets, unless, at the time the acquisition is made, qualifying assets represent at least 70% of the company's total assets. The principal categories of qualifying assets relevant to our business are any of the following:

        In addition, a BDC must have been organized and have its principal place of business in the United States and must be operated for the purpose of making investments in the types of securities described in (1), (2) or (3) above.

        An eligible portfolio company is defined in the 1940 Act as any issuer which:

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        In order to count portfolio securities as qualifying assets for the purpose of the 70% test, we must either control the issuer of the securities or must offer to make available to the issuer of the securities (other than small and solvent companies described above) significant managerial assistance; except that, where we purchase such securities in conjunction with one or more other persons acting together, one of the other persons in the group may make available such managerial assistance. Making available managerial assistance means, among other things, any arrangement whereby the BDC, through its directors, officers or employees, offers to provide, and, if accepted, does so provide, significant guidance and counsel concerning the management, operations or business objectives and policies of a portfolio company.

        Pending investment in "qualifying assets," as described above, our investments may consist of cash, cash equivalents, U.S. government securities and high quality debt securities maturing in one year or less from time of investment therein, so that 70% of our assets are qualifying assets.

        We are permitted, under specified conditions, to issue multiple classes of debt and one class of stock senior to our common stock if our asset coverage, as defined in the 1940 Act, is at least equal to 200% of all debt and/or senior stock immediately after each such issuance. In addition, while any senior securities remain outstanding (other than senior securities representing indebtedness issued in consideration of a privately arranged loan which is not intended to be publicly distributed), we must make provisions to prohibit any distribution to our stockholders or the repurchase of such securities or shares unless we meet the applicable asset coverage ratios at the time of the distribution or repurchase. We may also borrow amounts up to 5% of the value of our total assets for temporary or emergency purposes without regard to asset coverage. For a discussion of the risks associated with leverage, see "Risk Factors—Risks Relating to Our Business and Structure," including, without limitation, "—Because we borrow money, the potential for gain or loss on amounts invested in us is magnified and may increase the risk of investing in us."

        In January 2008, we received an exemptive order from the SEC to exclude debt securities issued by MSMF and any other wholly owned subsidiaries of ours which operate as SBICs from the asset coverage requirements of the 1940 Act as applicable to Main Street. The exemptive order provides for the exclusion of all debt securities issued by the Funds, including the $220 million of currently outstanding debt related to its participation in the SBIC program. This exemptive order provides us with expanded capacity and flexibility in obtaining future sources of capital for our investment and operational objectives.

        We are not generally able to issue and sell our common stock at a price below net asset value per share. We may, however, sell our common stock, warrants, options or rights to acquire our common

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stock, at a price below the current net asset value of the common stock if our board of directors determines that such sale is in our best interests and that of our stockholders, and our stockholders approve such sale. In any such case, the price at which our securities are to be issued and sold may not be less than a price which, in the determination of our board of directors, closely approximates the market value of such securities (less any distributing commission or discount). A proposal, approved by our stockholders at our June 2011 annual meeting of stockholders, authorizes us to sell shares of our common stock below the then current net asset value per share of our common stock in one or more offerings for a period of one year ending on June 14, 2012. We would need similar future approval from our stockholders to issue shares below the then current net asset value per share any time after the expiration of the current approval. We are seeking such approval for the next year at our 2012 annual stockholders meeting to be held on June 14, 2012. On June 17, 2008, our stockholders approved another proposal that authorizes us to issue securities to subscribe to, convert to, or purchase shares of our common stock in one or more offerings. We may also make rights offerings to our stockholders at prices per share less than the net asset value per share, subject to applicable requirements of the 1940 Act. See "Risk Factors—Risks Relating to Our Business and Structure—Stockholders may incur dilution if we sell shares of our common stock in one or more offerings at prices below the then current net asset value per share of our common stock or issue securities to subscribe to, convert to or purchase shares of our common stock."

        We have adopted a code of ethics pursuant to Rule 17j-1 under the 1940 Act that establishes procedures for personal investments and restricts certain personal securities transactions. Personnel subject to the code may invest in securities for their personal investment accounts, including securities that may be purchased or held by us, so long as such investments are made in accordance with the code's requirements. You may read and copy the code of ethics at the SEC's Public Reference Room located at 100 F Street, NE, Washington, DC 20549. You may obtain information on the operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330. In addition, the code of ethics is available on the EDGAR Database on the SEC's website site at http://www.sec.gov.

        We vote proxies relating to our portfolio securities in a manner in which we believe is consistent with the best interest of our stockholders. We review on a case-by-case basis each proposal submitted to a stockholder vote to determine its impact on the portfolio securities held by us. Although we generally vote against proposals that we expect would have a negative impact on our portfolio securities, we may vote for such a proposal if there exists compelling long-term reasons to do so.

        Our proxy voting decisions are made by the investment team which is responsible for monitoring each of our investments. To ensure that our vote is not the product of a conflict of interest, we require that: (i) anyone involved in the decision-making process to disclose to our chief compliance officer any potential conflict of which he or she is aware and any contact that he or she has had with any interested party regarding a proxy vote and (ii) employees involved in the decision making process or vote administration are prohibited from revealing how we intend to vote on a proposal in order to reduce any attempted influence from interested parties.

        Stockholders may obtain information, without charge, regarding how we voted proxies with respect to our portfolio securities by making a written request for proxy voting information to: Chief Compliance Officer, 1300 Post Oak Boulevard, Suite 800, Houston, Texas 77056.

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        We may also be prohibited under the 1940 Act from knowingly participating in certain transactions with our affiliates without the prior approval of our Board of Directors who are not interested persons and, in some cases, prior approval by the SEC.

        We are required to provide and maintain a bond issued by a reputable fidelity insurance company to protect us against larceny and embezzlement. Furthermore, as a BDC, we are prohibited from protecting any director or officer against any liability to us or our stockholders arising from willful misfeasance, bad faith, gross negligence or reckless disregard of the duties involved in the conduct of such person's office.

        We are required to adopt and implement written policies and procedures reasonably designed to prevent violation of the federal securities laws, review these policies and procedures annually for their adequacy and the effectiveness of their implementation, and to designate a chief compliance officer to be responsible for administering the policies and procedures.

        We may be periodically examined by the SEC for compliance with the 1940 Act.

        Each of the Funds is licensed by the SBA to operate as a SBIC under Section 301(c) of the Small Business Investment Act of 1958. As a part of the Formation Transactions, MSMF became a wholly owned subsidiary of MSCC, and continues to hold its SBIC license. MSMF initially obtained its SBIC license in September 2002. As part of the Exchange Offer Transactions, MSC II became a majority owned subsidiary of MSCC and continues to hold the license it obtained in 2006. In February and March 2012, MSCC purchased the remaining minority interests in MSC II.

        SBICs are designed to stimulate the flow of private equity capital to eligible small businesses. Under SBIC regulations, SBICs may make loans to eligible small businesses, invest in the equity securities of such businesses and provide them with consulting and advisory services. Each of the Funds has typically invested in secured debt, acquired warrants and/or made equity investments in qualifying small businesses.

        Under present SBIC regulations, eligible small businesses generally include businesses that (together with their affiliates) have a tangible net worth not exceeding $18 million and have average annual net income after federal income taxes not exceeding $6 million (average net income to be computed without benefit of any carryover loss) for the two most recent fiscal years. In addition, an SBIC must devote 25% of its investment activity to "smaller" concerns as defined by the SBA. A smaller concern generally includes businesses that have a tangible net worth not exceeding $6 million and have average annual net income after federal income taxes not exceeding $2 million (average net income to be computed without benefit of any net carryover loss) for the two most recent fiscal years. SBIC regulations also provide alternative size standard criteria to determine eligibility for designation as an eligible small business or smaller concern, which criteria depend on the primary industry in which the business is engaged and are based on such factors as the number of employees and gross revenue. However, once an SBIC has invested in a company, it may continue to make follow on investments in the company, regardless of the size of the portfolio company at the time of the follow on investment, up to the time of the portfolio company's initial public offering.

        The SBA prohibits an SBIC from providing funds to small businesses for certain purposes, such as relending and investment outside the United States, to businesses engaged in a few prohibited industries, and to certain "passive" (non-operating) companies. In addition, without prior SBA approval, an SBIC may not invest an amount equal to more than approximately 30% of the SBIC's regulatory capital in any one portfolio company and its affiliates.

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        The SBA places certain limitations on the financing terms of investments by SBICs in portfolio companies (such as limiting the permissible interest rate on debt securities held by an SBIC in a portfolio company). Included in such limitations are SBA regulations which allow an SBIC to exercise control over a small business for a period of seven years from the date on which the SBIC initially acquires its control position. This control period may be extended for an additional period of time with the SBA's prior written approval.

        The SBA restricts the ability of an SBIC to lend money to any of its officers, directors and employees or to invest in affiliates thereof. The SBA also prohibits, without prior SBA approval, a "change of control" of an SBIC or transfers that would result in any person (or a group of persons acting in concert) owning 10% or more of a class of equity of a licensed SBIC. A "change of control" is any event which would result in the transfer of the power, direct or indirect, to direct the management and policies of an SBIC, whether through ownership, contractual arrangements or otherwise.

        An SBIC may generally have outstanding debentures guaranteed by the SBA in amounts up to twice the amount of the privately-raised funds of the SBIC(s). Debentures guaranteed by the SBA have a maturity of ten years, require semi-annual payments of interest, do not require any principal payments prior to maturity, and are not subject to prepayment penalties. As of March 31, 2012, we, through the Funds, had issued $220 million of SBA- guaranteed debentures, which had an annual weighted average interest rate of approximately 5.1%.

        The American Recovery and Reinvestment Act of 2009 enacted in February 2009 (the "Stimulus Bill") contains several provisions applicable to SBIC funds, including the Funds. One of the key SBIC-related provisions included in the Stimulus Bill increased the maximum amount of combined SBIC leverage (or SBIC leverage cap) to $225 million for affiliated SBIC funds. The prior maximum amount of SBIC leverage available to affiliated SBIC funds was approximately $137 million. Since the increase in the SBIC leverage cap applies to affiliated SBIC funds, Main Street is required to allocate such increased borrowing capacity between the Funds.

        A proposed bill in the U.S. House of Representatives, the Small Business Investment Company Modernization Act of 2011, or House Bill 3219, would increase the total SBIC leverage capacity for affiliated SBIC funds from $225 million to $350 million. Another bill in the U.S. Senate, Senate Bill 2136, to increase the total SBIC leverage capacity for affiliated SBIC funds to $350 million, was recently introduced in the U.S. Senate and referred to the Committee on Small Business and Entrepreneurship. If either of these bills is enacted, Main Street's SBIC leverage capacity through the Funds would increase by an additional $125 million. While Main Street is positioned to benefit from the full passage of either bill, the ultimate form and likely outcome of such legislation or any similar legislation cannot be predicted.

        SBICs must invest idle funds that are not being used to make loans in investments permitted under SBIC regulations in the following limited types of securities: (i) direct obligations of, or obligations guaranteed as to principal and interest by, the United States government, which mature within 15 months from the date of the investment; (ii) repurchase agreements with federally insured institutions with a maturity of seven days or less (and the securities underlying the repurchase obligations must be direct obligations of or guaranteed by the federal government); (iii) certificates of deposit with a maturity of one year or less, issued by a federally insured institution; (iv) a deposit account in a federally insured institution that is subject to a withdrawal restriction of one year or less; (v) a checking account in a federally insured institution; or (vi) a reasonable petty cash fund.

        SBICs are periodically examined and audited by the SBA's staff to determine their compliance with SBIC regulations and are periodically required to file certain financial information and other documents with the SBA.

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        Neither the SBA nor the U.S. government or any of its agencies or officers has approved any ownership interest to be issued by us or any obligation that we or any of our subsidiaries may incur.

        We are subject to the reporting and disclosure requirements of the Securities Exchange Act of 1934 (the "Exchange Act"), including the filing of quarterly, annual and current reports, proxy statements and other required items. In addition, we are subject to the Sarbanes-Oxley Act of 2002, which imposes a wide variety of regulatory requirements on publicly-held companies and their insiders. For example:

        The New York Stock Exchange ("NYSE") has adopted corporate governance regulations that listed companies must comply with. We believe we are in compliance with such corporate governance listing standards. We intend to monitor our compliance with all future listing standards and to take all necessary actions to ensure that we stay in compliance.

        We and the Investment Manager, which is wholly owned by us and employs all of our executive officers, investment professionals and other employees, are also subject to regulation under the Investment Advisers Act of 1940, as amended (the "Advisers Act"). The Advisers Act establishes, among other things, recordkeeping and reporting requirements, disclosure requirements, limitations on transactions between the adviser's account and an advisory client's account, limitations on transactions between the accounts of advisory clients, and general anti-fraud prohibitions. We and the Investment Manager will also be examined by the SEC from time to time for compliance with the Advisers Act.

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PLAN OF DISTRIBUTION

        We may sell our common stock through underwriters or dealers, "at the market" to or through a market maker or into an existing trading market or otherwise, directly to one or more purchasers or through agents or through a combination of any such methods of sale. Any underwriter or agent involved in the offer and sale of our common stock will also be named in the applicable prospectus supplement.

        The distribution of our common stock may be effected from time to time in one or more transactions at a fixed price or prices, which may be changed, at prevailing market prices at the time of sale, at prices related to such prevailing market prices, or at negotiated prices, provided, however, that the offering price per share of our common stock less any underwriting commissions or discounts must equal or exceed the net asset value per share of our common stock except (i) with the requisite approval of our common stockholders or (ii) under such other circumstances as the SEC may permit. See "Risk Factors—Risks Relating to Our Business and Structure—Stockholders may incur dilution if we sell shares of our common stock in one or more offerings at prices below the then current net asset value per share of our common stock or issue securities to subscribe to, convert to or purchase shares of our common stock" for a discussion of proposals approved by our stockholders that permit us to issue shares of our common stock below net asset value.

        In connection with the sale of our common stock, underwriters or agents may receive compensation from us or from purchasers of our common stock, for whom they may act as agents, in the form of discounts, concessions or commissions. Underwriters may sell our common stock to or through dealers and such dealers may receive compensation in the form of discounts, concessions or commissions from the underwriters and/or commissions from the purchasers for whom they may act as agents. Underwriters, dealers and agents that participate in the distribution of our common stock may be deemed to be underwriters under the Securities Act, and any discounts and commissions they receive from us and any profit realized by them on the resale of our common stock may be deemed to be underwriting discounts and commissions under the Securities Act. Any such underwriter or agent will be identified and any such compensation received from us will be described in the applicable prospectus supplement.

        We may enter into derivative transactions with third parties, or sell securities not covered by this prospectus to third parties in privately negotiated transactions. If the applicable prospectus supplement indicates, in connection with those derivatives, the third parties may sell common stock covered by this prospectus and the applicable prospectus supplement, including in short sale transactions. If so, the third party may use securities pledged by us or borrowed from us or others to settle those sales or to close out any related open borrowings of stock, and may use securities received from us in settlement of those derivatives to close out any related open borrowings of stock. The third parties in such sale transactions will be underwriters and, if not identified in this prospectus, will be identified in the applicable prospectus supplement (or a post-effective amendment).

        Any of our common stock sold pursuant to a prospectus supplement will be listed on the New York Stock Exchange, or another exchange on which our common stock is traded.

        Under agreements into which we may enter, underwriters, dealers and agents who participate in the distribution of our common stock may be entitled to indemnification by us against certain liabilities, including liabilities under the Securities Act. Underwriters, dealers and agents may engage in transactions with, or perform services for, us in the ordinary course of business.

        If so indicated in the applicable prospectus supplement, we will authorize underwriters or other persons acting as our agents to solicit offers by certain institutions to purchase our common stock from us pursuant to contracts providing for payment and delivery on a future date. Institutions with which such contracts may be made include commercial and savings banks, insurance companies, pension

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funds, investment companies, educational and charitable institutions and others, but in all cases such institutions must be approved by us. The obligations of any purchaser under any such contract will be subject to the condition that the purchase of our common stock shall not at the time of delivery be prohibited under the laws of the jurisdiction to which such purchaser is subject. The underwriters and such other agents will not have any responsibility in respect of the validity or performance of such contracts. Such contracts will be subject only to those conditions set forth in the prospectus supplement, and the prospectus supplement will set forth the commission payable for solicitation of such contracts.

        In order to comply with the securities laws of certain states, if applicable, our common stock offered hereby will be sold in such jurisdictions only through registered or licensed brokers or dealers. In addition, in certain states, our common stock may not be sold unless it has been registered or qualified for sale in the applicable state or an exemption from the registration or qualification requirement is available and is complied with.

        The maximum amount of any compensation to be received by any member of the Financial Industry Regulatory Authority, Inc. will not be greater than 10% for the sale of any securities being registered.


CUSTODIAN, TRANSFER AND DISTRIBUTION PAYING AGENT AND REGISTRAR

        Our securities are held under custody agreements by Amegy Bank National Association, whose address is 1221 McKinney Street Level P-1 Houston, Texas 77010, and Branch Banking and Trust Company, whose address is 5130 Parkway Plaza Boulevard, Charlotte, North Carolina 28217. American Stock Transfer & Trust Company acts as our transfer agent, distribution paying agent and registrar. The principal business address of our transfer agent is 59 Maiden Lane New York, New York 10038, telephone number: (212) 936-5100.


BROKERAGE ALLOCATION AND OTHER PRACTICES

        Since we generally acquire and dispose of our investments in privately negotiated transactions, we infrequently use brokers in the normal course of our business. Our investment team is primarily responsible for the execution of the publicly traded securities portion of our portfolio transactions and the allocation of brokerage commissions. We do not expect to execute transactions through any particular broker or dealer, but will seek to obtain the best net results for us, taking into account such factors as price (including the applicable brokerage commission or dealer spread), size of order, difficulty of execution, and operational facilities of the firm and the firm's risk and skill in positioning blocks of securities. While we will generally seek reasonably competitive trade execution costs, we will not necessarily pay the lowest spread or commission available. Subject to applicable legal requirements, we may select a broker based partly upon brokerage or research services provided to us. In return for such services, we may pay a higher commission than other brokers would charge if we determine in good faith that such commission is reasonable in relation to the services provided. We did not pay any brokerage commissions during the year ended December 31, 2011.


LEGAL MATTERS

        Certain legal matters regarding the shares of common stock offered hereby will be passed upon for us by Sutherland Asbill & Brennan LLP, Washington D.C. Certain legal matters will be passed upon for underwriters, if any, by the counsel named in the prospectus supplement, if any.


INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

        The consolidated financial statements, Schedule 12-14 and the schedule of Senior Securities of Main Street Capital Corporation, included in this prospectus and elsewhere in the registration

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statement have been so included in reliance upon the reports of Grant Thornton LLP, independent registered public accountants, upon the authority of said firm as experts in giving said reports. Grant Thornton LLP's principal business address is 333 Clay Street, 2700 Three Allen Center, Houston, Texas 77002.


AVAILABLE INFORMATION

        We have filed with the SEC a registration statement on Form N-2, together with all amendments and related exhibits, under the Securities Act, with respect to our shares of common stock offered by this prospectus or any prospectus supplement. The registration statement contains additional information about us and our shares of common stock being offered by this prospectus or any prospectus supplement.

        We file with or submit to the SEC annual, quarterly and current reports, proxy statements and other information meeting the informational requirements of the Exchange Act. You may inspect and copy these reports, proxy statements and other information, as well as the registration statement and related exhibits and schedules, at the Public Reference Room of the SEC at 100 F Street, N.E., Washington, D.C. 20549. You may obtain information on the operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330. The SEC maintains an Internet site that contains reports, proxy and information statements and other information filed electronically by us with the SEC, which are available on the SEC's website at www.sec.gov. Copies of these reports, proxy and information statements and other information may be obtained, after paying a duplicating fee, by electronic request at the following e-mail address: publicinfo@sec.gov, or by writing the SEC's Public Reference Section, 100 F Street, N.E., Washington, D.C. 20549.


PRIVACY NOTICE

        We are committed to protecting your privacy. This privacy notice explains the privacy policies of Main Street and its affiliated companies. This notice supersedes any other privacy notice you may have received from Main Street.

        We will safeguard, according to strict standards of security and confidentiality, all information we receive about you. The only information we collect from you is your name, address, and number of shares you hold. This information is used only so that we can send you annual reports and other information about us, and send you proxy statements or other information required by law.

        We do not share this information with any non-affiliated third party except as described below.

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INDEX TO FINANCIAL STATEMENTS

Unaudited Financial Statements

       

Consolidated Balance Sheets—March 31, 2012 (unaudited) and December 31, 2011

   
F-2
 

Consolidated Statements of Operations (unaudited)—Three months ended March 31, 2012 and 2011

    F-3  

Consolidated Statements of Changes in Net Assets (unaudited)—Three months ended March 31, 2012 and 2011

    F-4  

Consolidated Statements of Cash Flows (unaudited)—Three months ended March 31, 2012 and 2011

    F-5  

Consolidated Schedule of Investments (unaudited)—March 31, 2012

    F-6  

Consolidated Schedule of Investments—December 31, 2011

    F-21  

Notes to Consolidated Financial Statements (unaudited)

    F-35  

Audited Financial Statements

       

Report of Independent Registered Public Accounting Firm

   
F-66
 

Consolidated Balance Sheets as of December 31, 2011 and 2010

    F-67  

Consolidated Statements of Operations for the Years Ended December 31, 2011, 2010, and 2009

    F-68  

Consolidated Statements of Changes in Net Assets for the Years Ended December 31, 2011, 2010, and 2009

    F-69  

Consolidated Statements of Cash Flows for the Years Ended December 31, 2011, 2010, and 2009

    F-70  

Consolidated Schedules of Investments as of December 31, 2011 and 2010

    F-71  

Notes to Consolidated Financial Statements

    F-94  

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MAIN STREET CAPITAL CORPORATION

Consolidated Balance Sheets

(in thousands, except shares and per share amounts)

 
  March 31,
2012
  December 31,
2011
 
 
  (Unaudited)
   
 

ASSETS

             

Portfolio investments at fair value:

             

Control investments (cost: $180,625 and $206,787 as of March 31, 2012 and December 31, 2011, respectively)

  $ 220,048   $ 238,924  

Affiliate investments (cost: $102,868 and $110,157 as of March 31, 2012 and December 31, 2011, respectively)

    130,715     146,405  

Non-Control/Non-Affiliate investments (cost: $313,646 and $275,061 as of March 31, 2012 and December 31, 2011, respectively)

    313,334     270,895  

Investment in affiliated Investment Manager (cost: $2,668 and $4,284 as of March 31, 2012 and December 31, 2011, respectively)

    202     1,869  
           

Total portfolio investments (cost: $599,807 and $596,289 as of March 31, 2012 and December 31, 2011, respectively)

    664,299     658,093  

Marketable securities and idle funds investments (cost: $14,066 and $25,935 as of March 31, 2012 and December 31, 2011, respectively)

    14,345     26,242  
           

Total investments (cost: $613,873 and $622,224 as of March 31, 2012 and December 31, 2011, respectively)

    678,644     684,335  

Cash and cash equivalents

   
88,955
   
42,650
 

Interest receivable and other assets

    7,899     6,539  

Deferred financing costs (net of accumulated amortization of $2,395 and $2,167 as of March 31, 2012 and December 31, 2011, respectively)

    3,945     4,168  
           

Total assets

  $ 779,443   $ 737,692  
           

LIABILITIES

             

SBIC debentures (par: $220,000 as of March 31, 2012 and December 31, 2011; par of $95,000 is recorded at a fair value of $76,586 and $76,887 as of March 31, 2012 and December 31, 2011, respectively)

  $ 201,586   $ 201,887  

Credit facility

    138,000     107,000  

Interest payable

    1,326     3,984  

Dividend payable

    3,789     2,856  

Deferred tax liability, net

    4,825     3,776  

Payable to affiliated Investment Manager

    1,520     4,831  

Accounts payable and other liabilities

    2,861     2,170  
           

Total liabilities

    353,907     326,504  

Commitments and contingencies

             

NET ASSETS

             

Common stock, $0.01 par value per share (150,000,000 shares authorized; 27,061,484 and 26,714,384 issued and outstanding as of March 31, 2012 and December 31, 2011, respectively)

   
270
   
267
 

Additional paid-in capital

    367,242     360,164  

Accumulated net investment income, net of cumulative dividends of $87,348 and $79,414 as of March 31, 2012 and December 31, 2011, respectively

    17,446     12,531  

Accumulated net realized gain from investments, net of cumulative dividends of $16,911 and $13,804 as of March 31, 2012 and December 31, 2011, respectively

    (15,414 )   (20,445 )

Net unrealized appreciation, net of income taxes

    55,992     53,194  
           

Total Net Asset Value

    425,536     405,711  

Noncontrolling interest

   
   
5,477
 
           

Total net assets including noncontrolling interests

    425,536     411,188  
           

Total liabilities and net assets

  $ 779,443   $ 737,692  
           

NET ASSET VALUE PER SHARE

  $ 15.72   $ 15.19  
           

   

The accompanying notes are an integral part of these financial statements

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MAIN STREET CAPITAL CORPORATION

Consolidated Statements of Operations

(in thousands, except shares and per share amounts)

(Unaudited)

 
  Three Months Ended
March 31,
 
 
  2012   2011  

INVESTMENT INCOME:

             

Interest, fee and dividend income:

             

Control investments

  $ 5,767   $ 5,650  

Affiliate investments

    5,673     2,146  

Non-Control/Non-Affiliate investments

    8,147     5,526  
           

Total interest, fee and dividend income

    19,587     13,322  

Interest from marketable securities, idle funds and other

    972     52  
           

Total investment income

    20,559     13,374  

EXPENSES:

             

Interest

    (3,864 )   (2,902 )

General and administrative

    (608 )   (507 )

Expenses reimbursed to affiliated Investment Manager

    (2,657 )   (2,130 )

Share-based compensation

    (581 )   (443 )
           

Total expenses

    (7,710 )   (5,982 )
           

NET INVESTMENT INCOME

    12,849     7,392  

NET REALIZED GAIN FROM INVESTMENTS:

             

Control investments

    (1,965 )    

Affiliate investments

    9,232      

Non-Control/Non-Affiliate investments

    163      

Marketable securities and idle funds investments

    708      
           

Total net realized gain from investments

    8,138      
           

NET REALIZED INCOME

    20,987     7,392  

NET CHANGE IN UNREALIZED APPRECIATION (DEPRECIATION):

             

Portfolio investments

    4,507     4,018  

Marketable securities and idle funds investments

    (29 )   115  

SBIC debentures

    301     39  

Investment in affiliated Investment Manager

    (51 )   (41 )
           

Total net change in unrealized appreciation

    4,728     4,131  
           

Income tax provision

    (1,876 )   (1,200 )
           

NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS

    23,839     10,323  

Noncontrolling interest

    (54 )    
           

NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS ATTRIBUTABLE TO COMMON STOCK

  $ 23,785   $ 10,323  
           

NET INVESTMENT INCOME PER SHARE—BASIC AND DILUTED

  $ 0.48   $ 0.38  
           

NET REALIZED INCOME PER SHARE—BASIC AND DILUTED

  $ 0.78   $ 0.38  
           

NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS ATTRIBUTABLE TO COMMON STOCK PER SHARE—BASIC AND DILUTED

  $ 0.89   $ 0.54  
           

DIVIDENDS PAID PER SHARE

  $ 0.41   $ 0.38  
           

WEIGHTED AVERAGE SHARES OUTSTANDING—BASIC AND DILUTED

    26,871,084     19,217,690  
           

   

The accompanying notes are an integral part of these financial statements

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MAIN STREET CAPITAL CORPORATION

Consolidated Statements of Changes in Net Assets

(in thousands, except shares)

(Unaudited)

 
   
   
   
   
  Accumulated
Net Realized
Gain From
Investments,
Net of
Dividends
  Net Unrealized
Appreciation
from
Investments,
Net of Income
Taxes
   
   
   
 
 
  Common Stock    
   
   
   
  Total Net
Assets
Including
Noncontrolling
Interest
 
 
   
  Accumulated
Net Investment
Income, Net
of Dividends
   
   
 
 
  Number
of Shares
  Par
Value
  Additional
Paid-In
Capital
  Total Net
Asset Value
  Noncontrolling
Interest
 

Balances at December 31, 2010

    18,797,444   $ 188   $ 224,485   $ 9,262   $ (20,542 ) $ 32,142   $ 245,535   $ 4,448   $ 249,983  

Public offering of common stock, net of offering costs

   
4,025,000
   
40
   
70,310
   
   
   
   
70,350
   
   
70,350
 

Share-based compensation

            443                 443         443  

Dividend reinvestment

    125,122     1     2,408                 2,409         2,409  

Distributions to noncontrolling interest

                                (110 )   (110 )

Dividends to stockholders

                (10,048 )           (10,048 )       (10,048 )

Net increase resulting from operations

                7,392         2,931     10,323         10,323  

Noncontrolling interest

                                     
                                       

Balances at March 31, 2011

    22,947,566   $ 229   $ 297,646   $ 6,606   $ (20,542 ) $ 35,073   $ 319,012   $ 4,338   $ 323,350  
                                       

Balances at December 31, 2011

    26,714,384   $ 267   $ 360,164   $ 12,531   $ (20,445 ) $ 53,194   $ 405,711   $ 5,477   $ 411,188  

MSC II noncontrolling interest acquisition

   
229,634
   
2
   
5,413
   
   
   
   
5,415
   
(5,417

)
 
(2

)

Adjustment to investment in Investment Manager related to MSC II noncontrolling interest acquisition

            (1,616 )               (1,616 )       (1,616 )

Share-based compensation

            581                 581         581  

Dividend reinvestment

    117,466     1     2,700                 2,701         2,701  

Distributions to noncontrolling interest

                                (114 )   (114 )

Dividends to stockholders

                (7,934 )   (3,107 )       (11,041 )       (11,041 )

Net increase resulting from operations

                12,849     8,138     2,852     23,839         23,839  

Noncontrolling interest

                        (54 )   (54 )   54      
                                       

Balances at March 31, 2012

    27,061,484   $ 270   $ 367,242   $ 17,446   $ (15,414 ) $ 55,992   $ 425,536   $   $ 425,536  
                                       

   

The accompanying notes are an integral part of these financial statements

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MAIN STREET CAPITAL CORPORATION

Consolidated Statements of Cash Flows

(in thousands)

(Unaudited)

 
  Three Months Ended
March 31,
 
 
  2012   2011  

CASH FLOWS FROM OPERATING ACTIVITIES

             

Net increase in net assets resulting from operations

  $ 23,839   $ 10,323  

Adjustments to reconcile net increase in net assets resulting from operations to net cash provided by operating activities:

             

Net change in unrealized appreciation

    (4,728 )   (4,131 )

Net realized gain from investments

    (8,138 )    

Accretion of unearned income

    (4,715 )   (1,557 )

Net payment-in-kind interest

    (628 )   (561 )

Cumulative dividends

    (67 )   (386 )

Share-based compensation expense

    581     443  

Amortization of deferred financing costs

    228     146  

Deferred taxes

    1,049     1,150  

Changes in other assets and liabilities:

             

Interest receivable and other assets

    (246 )   (1,206 )

Interest payable

    (2,658 )   (2,332 )

Payable to affiliated Investment Manager

    (3,311 )   1,154  

Accounts payable and other liabilities

    490     559  

Deferred fees and other

    220     523  
           

Net cash provided by operating activities

    1,916     4,125  

CASH FLOWS FROM INVESTING ACTIVITIES

             

Investments in portfolio companies

    (88,439 )   (58,260 )

Principal payments received on loans and debt securities in portfolio companies

    70,939     13,186  

Proceeds from sale of equity investments and related notes in portfolio companies

    25,182      

Investments in marketable securities and idle funds investments

    (5,592 )   (25,039 )

Proceeds from marketable securities and idle funds investments

    18,827     3,021  
           

Net cash provided by (used in) investing activities

    20,917     (67,092 )

CASH FLOWS FROM FINANCING ACTIVITIES

             

Proceeds from public offering of common stock, net of offering costs

        70,350  

Distributions to noncontrolling interest

    (114 )   (110 )

Dividends paid to stockholders

    (8,157 )   (4,655 )

Net change in DRIP deposit

    750     (800 )

Proceeds from issuance of SBIC debentures

        30,000  

Proceeds from credit facility

    63,000     41,000  

Repayments on credit facility

    (32,000 )   (65,000 )

Payment of deferred loan costs and SBIC debenture fees

    (7 )   (1,088 )
           

Net cash provided by financing activities

    23,472     69,697  
           

Net increase in cash and cash equivalents

    46,305     6,730  

CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD

    42,650     22,334  
           

CASH AND CASH EQUIVALENTS AT END OF PERIOD

  $ 88,955   $ 29,064  
           

   

The accompanying notes are an integral part of these financial statements

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MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS

March 31, 2012

(in thousands)

(Unaudited)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Control Investments(3)

                           

Café Brazil, LLC

 

Casual Restaurant Group

                       

     

12% Secured Debt (Maturity—April 20, 2013)

    1,200     1,199     1,200  

     

Member Units (Fully diluted 41.0%)(7)

          42     3,430  
                         

                  1,241     4,630  

California Healthcare Medical Billing, Inc.

 

Healthcare Services

                       

     

12% Secured Debt (Maturity—October 17, 2015)

    8,853     8,538     8,761  

     

Warrants (Fully diluted 21.0%)

          1,193     3,380  

     

Common Stock (Fully diluted 9.6%)

          1,177     1,560  
                         

                  10,908     13,701  

CBT Nuggets, LLC

 

Produces and Sells IT Training Certification Videos

                       

     

14% Secured Debt (Maturity—December 31, 2013)

    850     850     850  

     

Member Units (Fully diluted 40.8%)(7)

          1,300     6,360  
                         

                  2,150     7,210  

Ceres Management, LLC (Lambs)

 

Aftermarket Automotive Services Chain

                       

     

14% Secured Debt (Maturity—May 31, 2013)

    4,000     3,982     3,982  

     

9.5% Secured Debt (Lamb's Real Estate Investment I, LLC) (Maturity—October 1, 2025)

    1,102     1,102     1,102  

     

Member Units (Fully diluted 79.0%)

          5,273     540  

     

Member Units (Lamb's Real Estate Investment I, LLC) (Fully diluted 100%)

          625     800  
                         

                  10,982     6,424  

Condit Exhibits, LLC

 

Tradeshow Exhibits / Custom Displays

                       

     

9% Current / 9% PIK Secured Debt (Maturity—July 1, 2013)

    4,661     4,639     4,639  

     

Warrants (Fully diluted 47.9%)

          320     560  
                         

                  4,959     5,199  

Gulf Manufacturing, LLC

 

Industrial Metal Fabrication

                       

     

9% PIK Secured Debt (Maturity—June 30, 2017)

    1,044     1,044     1,044  

     

Member Units (Fully diluted 34.2%)(7)

          2,980     11,240  
                         

                  4,024     12,284  

Harrison Hydra-Gen, Ltd.

 

Manufacturer of Hydraulic Generators

                       

     

12% Secured Debt (Maturity—June 4, 2015)

    5,024     4,554     4,746  

     

Preferred stock (8% cumulative)(7)

          1,103     1,103  

     

Common Equity (Fully diluted 34.5%)

          718     2,620  
                         

                  6,375     8,469  

Hawthorne Customs and Dispatch Services, LLC

 

Transportation / Logistics

                       

     

Member Units (Fully diluted 47.6%)(7)

          589     1,410  

     

Member Units (Wallisville Real Estate, LLC) (Fully diluted 59.1%)(7)

          1,215     1,215  
                         

                  1,804     2,625  

Hydratec, Inc.

 

Designer and Installer of Micro—Irrigation Systems

                       

     

Common Stock (Fully diluted 92.5%)(7)

          7,092     13,241  

F-6


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

March 31, 2012

(in thousands)

(Unaudited)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Control Investments(3)

                           

Indianapolis Aviation Partners, LLC

 

Fixed Base Operator

                       

     

12% Secured Debt (Maturity—September 15, 2014)

    4,500     4,253     4,350  

     

Warrants (Fully diluted 30.1%)

          1,129     1,650  
                         

                  5,382     6,000  

Jensen Jewelers of Idaho, LLC

 

Retail Jewelry Store

                       

     

Prime Plus 2%, Current Coupon 5.25%, Secured Debt (Maturity—November 14, 2013)(8)

    2,260     2,260     2,260  

     

13% Current / 6% PIK Secured Debt (Maturity—November 14, 2013)

    2,345     2,345     2,345  

     

Member Units (Fully diluted 60.8%)(7)

          811     1,750  
                         

                  5,416     6,355  

Lighting Unlimited, LLC

 

Commercial and Residential Lighting Products and Design Services

                       

     

8% Secured Debt (Maturity—August 22, 2012)

    2,000     1,990     1,990  

     

Preferred Stock (non-voting)

          510     510  

     

Warrants (Fully diluted 7.1%)

          54     60  

     

Common Stock (Fully diluted 70.0%)

          100     580  
                         

                  2,654     3,140  

Mid-Columbia Lumber Products, LLC

 

Manufacturer of Finger—Jointed Lumber Products

                       

     

10% Secured Debt (Maturity—December 18, 2014)

    1,250     1,250     1,250  

     

12% Secured Debt (Maturity—December 18, 2014)

    3,900     3,900     3,900  

     

9.5% Secured Debt (Mid—Columbia Real Estate, LLC) (Maturity—May 13, 2025)

    1,051     1,051     1,051  

     

Warrants (Fully diluted 9.2%)

          250     890  

     

Member Units (Fully diluted 42.9%)

          812     930  

     

Member Units (Mid—Columbia Real Estate, LLC) (Fully diluted 50.0%)(7)

          250     810  
                         

                  7,513     8,831  

NAPCO Precast, LLC

 

Precast Concrete Manufacturing

                       

     

Prime Plus 2%, Current Coupon 9%, Secured Debt (Maturity—February 1, 2013)(8)

    3,385     3,378     3,378  

     

18% Secured Debt (Maturity—February 1, 2013)

    5,173     5,149     5,149  

     

Member Units (Fully diluted 46.3%)(7)

          2,975     4,195  
                         

                  11,502     12,722  

NRI Clinical Research, LLC

 

Clinical Research Center

                       

     

14% Secured Debt (Maturity—September 8, 2016)

    5,265     4,973     4,973  

     

Warrants (Fully diluted 12.5%)

          252     390  

     

Member Units (Fully diluted 24.8%)

          500     770  
                         

                  5,725     6,133  

NRP Jones, LLC

 

Manufacturer of Hoses, Fittings and Assemblies

                       

     

12% Secured Debt (Maturity—December 22, 2016)

    12,100     11,079     11,079  

     

Warrants (Fully diluted 12.2%)

          817     817  

     

Member Units (Fully diluted 43.2%)

          2,900     2,900  
                         

                  14,796     14,796  

OMi Holdings, Inc.

 

Manufacturer of Overhead Cranes

                       

     

12% Secured Debt (Maturity—April 1, 2013)

    7,618     7,600     7,600  

     

Common Stock (Fully diluted 48.0%)

          1,080     3,550  
                         

                  8,680     11,150  

F-7


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

March 31, 2012

(in thousands)

(Unaudited)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Control Investments(3)

                           

Pegasus Research Group, LLC (Televerde)

 

Telemarketing and Data Services

                       

     

13% Current / 5% PIK Secured Debt (Maturity—January 6, 2016)

    5,691     5,630     5,630  

     

Member Units (Fully diluted 43.7%)

          1,250     1,250  
                         

                  6,880     6,880  

PPL RVs, Inc.

 

Recreational Vehicle Dealer

                       

     

18% Secured Debt (Maturity—June 10, 2015)

    4,450     4,404     4,450  

     

Common Stock (Fully diluted 51.1%)

          2,150     3,980  
                         

                  6,554     8,430  

Principle Environmental, LLC

 

Noise Abatement Services

                       

     

12% Secured Debt (Maturity—February 1, 2016)

    4,750     3,808     4,080  

     

12% Current / 2% PIK Secured Debt (Maturity—February 1, 2016)

    3,525     3,470     3,525  

     

Warrants (Fully diluted 14.6%)

          1,200     2,630  

     

Member Units (Fully diluted 25.0%)

          2,000     4,510  
                         

                  10,478     14,745  

River Aggregates, LLC

 

Processor of Construction Aggregates

                       

     

12% Secured Debt (Maturity—March 30, 2016)

    3,700     3,468     3,468  

     

Warrants (Fully diluted 20.0%)

          202     100  

     

Member Units (Fully diluted 40.0%)

          550     200  
                         

                  4,220     3,768  

The MPI Group, LLC

 

Manufacturer of Custom Hollow Metal Doors, Frames and Accessories

                       

     

4.5% Current / 4.5% PIK Secured Debt (Maturity—October 2, 2013)

    1,056     1,053     1,053  

     

6% Current / 6% PIK Secured Debt (Maturity—October 2, 2013)

    5,482     5,384     5,384  

     

Warrants (Fully diluted 47.1%)

          896      

     

Member Units (Non-voting)

          200      
                         

                  7,533     6,437  

Thermal and Mechanical Equipment, LLC

 

Commercial and Industrial Engineering Services

                       

     

Prime Plus 2%, Current Coupon 9%, Secured Debt (Maturity—September 25, 2014)(8)

    1,272     1,267     1,267  

     

13% Current / 5% PIK Secured Debt (Maturity—September 25, 2014)

    4,053     4,013     4,053  

     

Member Units (Fully diluted 50.0%)(7)

          1,000     6,090  
                         

                  6,280     11,410  

Uvalco Supply, LLC

 

Farm and Ranch Supply Store

                       

     

Member Units (Fully diluted 42.8%)(7)

          1,113     3,110  

Van Gilder Insurance Corporation

 

Insurance Brokerage

                       

     

8% Secured Debt (Maturity—January 31, 2013)

    1,000     990     990  

     

8% Secured Debt (Maturity—January 31, 2016)

    1,634     1,619     1,619  

     

13% Secured Debt (Maturity—January 31, 2016)

    5,400     4,430     4,430  

     

Warrants (Fully diluted 10.0%)

          1,209     1,209  

     

Common Stock (Fully diluted 15.5%)

          2,500     2,500  
                         

                  10,748     10,748  

F-8


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

March 31, 2012

(in thousands)

(Unaudited)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Control Investments(3)

                           

Vision Interests, Inc.

 

Manufacturer / Installer of Commercial Signage

                       

     

6.5% Current /6.5% PIK Secured Debt (Maturity—December 23, 2016)

    3,051     2,986     2,986  

     

Series A Preferred Stock (Fully diluted 33.3%)

          3,000     3,000  

     

Common Stock (Fully diluted 36.7%)

          3,706      
                         

                  9,692     5,986  

Ziegler's NYPD, LLC

 

Casual Restaurant Group

                       

     

Prime Plus 2%, Current Coupon 9%, Secured Debt (Maturity—October 1, 2013)(8)

    1,000     996     996  

     

13% Current / 5% PIK Secured Debt (Maturity—October 1, 2013)

    4,353     4,328     4,328  

     

Warrants (Fully diluted 46.6%)

          600     300  
                         

                  5,924     5,624  
                         


Subtotal Control Investments (32.4% of total investments at fair value)


 

 

 

 

 

180,625

 

 

220,048

 
                         

F-9


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

March 31, 2012

(in thousands)

(Unaudited)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Affiliate Investments(4)

                           

American Sensor Technologies, Inc.

 

Manufacturer of Commercial / Industrial Sensors

                       

     

Warrants (Fully diluted 19.6%)

          50     3,370  

Compact Power Equipment Centers LLC

 

Equipment / Tool Rental

                       

     

6% Current / 6% PIK Secured Debt (Maturity—December 31, 2014)

    3,523     3,500     3,500  

     

8% PIK Secured Debt (Maturity—December 31, 2012)

    99     99     99  

     

Series A Member Units (8% cumulative)(7)

          870     870  

     

Member Units (Fully diluted 10.6%)

          1     1  
                         

                  4,470     4,470  

Drilling Info, Inc.

 

Information Services for the Oil and Gas Industry

                       

     

Common Stock (Fully diluted 2.4%)

          1,335     5,070  

East Teak Fine Hardwoods, Inc.

 

Hardwood Products

                       

     

Common Stock (Fully diluted 5.0%)

          480     380  

Gault Financial, LLC (RMB Capital, LLC)

 

Purchases and Manages Liquidation of Distressed Assets

                       

     

14% Secured Debt (Maturity—November 21, 2016)

    10,500     9,918     9,918  

     

Warrants (Fully diluted 22.5%)

          400     400  
                         

                  10,318     10,318  

Houston Plating and Coatings, LLC

 

Plating and Industrial Coating Services

                       

     

Member Units (Fully diluted 11.1%)(7)

          635     6,300  

Integrated Printing Solutions, LLC

 

Specialty Card Printing

                       

     

13% Secured Debt (Maturity—September 23, 2016)

    12,500     11,707     11,707  

     

Warrants (Fully diluted 9.0%)

          600     940  
                         

                  12,307     12,647  

IRTH Holdings, LLC

 

Damage Prevention Technology Information Services

                       

     

12% Secured Debt (Maturity—December 29, 2015)

    4,873     4,802     4,873  

     

Member Units (Fully diluted 22.3%)

          850     2,720  
                         

                  5,652     7,593  

KBK Industries, LLC

 

Specialty Manufacturer of Oilfield and Industrial Products

                       

     

10% Secured Debt (Maturity—December 31, 2012)

    458     458     458  

     

14% Secured Debt (Maturity—January 23, 2014)

    5,182     5,182     5,182  

     

Member Units (Fully diluted 18.8%)(7)

          341     3,190  
                         

                  5,981     8,830  

Laurus Healthcare, LP

 

Management of Outpatient Cardiac Cath Labs

                       

     

9% Secured Debt (Maturity—May 12, 2016)

    5,800     5,800     5,800  

     

Class A and C Units (Fully diluted 13.1%)(7)

          80     5,430  
                         

                  5,880     11,230  

F-10


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

March 31, 2012

(in thousands)

(Unaudited)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Affiliate Investments(4)

                           

Olympus Building Services, Inc.

 

Custodial / Facilities Services

                       

     

10% Current / 2% PIK Secured Debt (Maturity—March 27, 2014)

    2,446     2,330     2,330  

     

15% PIK Secured Debt (Maturity—March 27, 2014)

    1,031     1,031     1,031  

     

Warrants (Fully diluted 22.5%)

          470     70  
                         

                  3,831     3,431  

OnAsset Intelligence, Inc.

 

Transportation Monitoring / Tracking Services

                       

     

12% Secured Debt (Maturity—October 18, 2012)

    1,500     1,057     1,057  

     

Preferred Stock (7% cumulative) (Fully diluted 5.75%)(7)

          1,604     1,604  

     

Warrants (Fully diluted 4.0%)

          830     640  
                         

                  3,491     3,301  

OPI International Ltd.(12)

 

Oil and Gas Construction Services

                       

     

12% Secured Debt (Maturity—November 30, 2015)

    11,750     11,132     11,360  

     

Common Equity (Fully diluted 9.7%)

          1,370     4,970  
                         

                  12,502     16,330  

Radial Drilling Services Inc.

 

Oil and Gas Technology

                       

     

12% Secured Debt (Maturity—November 23, 2016)

    4,200     3,394     3,394  

     

Warrants (Fully diluted 24.0%)

          758     758  
                         

                  4,152     4,152  

Samba Holdings, Inc.

 

Intelligent Driver Record Monitoring Software and Services

                       

     

12.5% Secured Debt (Maturity—November 17, 2016)

    3,000     2,943     2,943  

     

Common Stock (Fully diluted 14.7%)

          950     950  
                         

                  3,893     3,893  

Schneider Sales Management, LLC

 

Sales Consulting and Training

                       

     

13% Secured Debt (Maturity—October 15, 2013)

    3,568     3,489      

     

Warrants (Fully diluted 20.0%)

          45      
                         

                  3,534      

Spectrio LLC

 

Audio Messaging Services

                       

     

8% Secured Debt (Maturity—June 16, 2016)

    280     280     280  

     

12% Secured Debt (Maturity—June 16, 2016)

    13,475     13,029     13,343  

     

Warrants (Fully diluted 9.8%)

          887     2,830  
                         

                  14,196     16,453  

SYNEO, LLC

 

Manufacturer of Specialty Cutting Tools and Punches

                       

     

12% Secured Debt (Maturity—July 13, 2016)

    5,500     5,379     5,379  

     

10% Secured Debt (Leadrock Properties, LLC) (Maturity—May 4, 2026)

    1,440     1,412     1,412  

     

Member Units (Fully diluted 11.1%)

          1,000     1,000  
                         

                  7,791     7,791  

Walden Smokey Point, Inc.

 

Specialty Transportation Provider

                       

     

Common Stock (Fully diluted 12.6%)

          1,427     4,510  

F-11


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

March 31, 2012

(in thousands)

(Unaudited)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Affiliate Investments(4)

                           

WorldCall, Inc.

 

Telecommunication / Information Services

                       

     

13% Secured Debt (Maturity—April 22, 2012)

    646     646     646  

     

Common Stock (Fully diluted 10.0%)

          297      
                         

                  943     646  
                         

Subtotal Affiliate Investments (19.3% of total investments at fair value)

          102,868     130,715  
                         

F-12


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

March 31, 2012

(in thousands)

(Unaudited)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Non-Control/Non-Affiliate Investments(5)

                           

Academy, Ltd.(9)

 

Sporting Goods Stores

                       

     

LIBOR Plus 4.50%, Current Coupon 6.00%, Secured Debt (Maturity—August 3, 2018)(8)

    2,993     2,981     3,010  

Affinity Videonet, Inc.

 

Video Conferencing and Managed Services

                       

     

13% Secured Debt (Maturity—December 31, 2015)

    2,000     1,917     2,000  

     

13% Current / 1% PIK Secured Debt (Maturity—December 31, 2015)

    1,012     1,007     1,007  

     

Warrants (Fully diluted 2.6%)

          63     120  
                         

                  2,987     3,127  

Ameritech College Operations, LLC

 

Education Services

                       

     

18% Secured Debt (Maturity—March 9, 2017)

    6,800     6,665     6,665  

API Technologies Corp.(9)

 

Manufacturer of Electrical Components and Equipment

                       

     

LIBOR Plus 6.25%, Current Coupon 7.75%, Secured Debt (Maturity—June 27, 2016)(8)

    2,480     2,403     2,480  

Aspen Dental Management, Inc.(9)

 

Dental Practice Management

                       

     

LIBOR Plus 5.50%, Current Coupon 7.00%, Secured Debt (Maturity—October 6, 2016)(8)

    3,990     3,970     3,960  

Associated Asphalt Partners, LLC(9)

 

Liquid Asphalt Supplier

                       

     

LIBOR Plus 5.75%, Current Coupon 7.25%, Secured Debt (Maturity—March 13, 2018)(8)

    8,950     8,773     8,815  

ATI Acquisition I Corp.(9)

 

Physical Therapy Facilities

                       

     

LIBOR Plus 5.50%, Current Coupon 7.50%, Secured Debt (Maturity—March 11, 2016)(8)

    2,846     2,810     2,775  

Blackboard, Inc.(9)

 

Education Software Provider

                       

     

LIBOR Plus 6.00%, Current Coupon 7.50%, Secured Debt (Maturity—October 4, 2018)(8)

    2,993     2,890     2,983  

     

LIBOR Plus 10.00%, Current Coupon 11.50%, Secured Debt (Maturity—October 4, 2019)(8)

    2,000     1,842     1,851  
                         

                  4,732     4,834  

Blue Coat Systems, Inc.(9)

 

Web Security and WAN Optimization

                       

     

LIBOR Plus 6.00%, Current Coupon 7.50%, Secured Debt (Maturity—February 15, 2018)(8)

    2,000     1,961     1,998  

     

LIBOR Plus 10.00%, Current Coupon 11.50%, Secured Debt (Maturity—February 15, 2019)(8)

    2,000     1,941     2,010  
                         

                  3,902     4,008  

Bourland and Leverich Supply Co., LLC(9)

 

Distributor of Oil and Gas Tubular Goods

                       

     

LIBOR Plus 9.00%, Current Coupon 11.00%, Secured Debt (Maturity—August 19, 2015)(8)

    3,753     3,613     3,986  

Brand Connections, LLC

 

Venue-Based Marketing and Media

                       

     

14% Secured Debt (Maturity—April 30, 2015)

    6,668     6,554     6,668  

F-13


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

March 31, 2012

(in thousands)

(Unaudited)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Non-Control/Non-Affiliate Investments(5)

                           

Business Development Corporation of America(10)(12)

 

Investment Management

                       

     

LIBOR plus 3.50%, Current Coupon 3.74%, Secured Debt (Maturity—January 14, 2013)

    10,000     10,000     10,000  

Calloway Laboratories, Inc.(9)

 

Health Care Testing Facilities

                       

     

LIBOR Plus 11.00% / 3.00% PIK, Current Coupon with PIK 15.00%, Secured Debt (Maturity—March 29, 2015)(8)

    5,001     4,851     4,851  

CCCG, LLC(9)

 

Manufacturer of Oil and Gas Equipment

                       

     

LIBOR Plus 5.00%, Current Coupon 6.75%, Secured Debt (Maturity—March 31, 2014)(8)

    3,369     3,289     3,268  

CHI Overhead Doors, Inc.(9)

 

Manufacturer of Overhead Garage Doors

                       

     

LIBOR Plus 5.75%, Current Coupon 7.25%, Secured Debt (Maturity—August 17, 2017)(8)

    2,488     2,442     2,465  

     

LIBOR Plus 9.50%, Current Coupon 11.00%, Secured Debt (Maturity—February 17, 2018)(8)

    2,500     2,453     2,463  
                         

                  4,895     4,928  

Citadel Plastics Holding, Inc.(9)

 

Supplier of Commodity Chemicals / Plastic Parts

                       

     

LIBOR plus 5.25%, Current Coupon 6.75%, Secured Debt (Maturity—February 22, 2018)(8)

    3,000     2,970     3,005  

Congruent Credit Opportunities Fund II, LP(10)(12)

 

Investment Partnership

                       

     

LP Interests (Fully diluted 18.75%)

          6,068     6,068  

Diversified Machine, Inc.(9)

 

Automotive Component Supplier

                       

     

LIBOR plus 7.75%, Current Coupon 9.25%, Secured Debt (Maturity—December 1, 2016)(8)

    1,995     1,957     2,001  

EnCap Energy Capital Fund VIII, L.P.(10)(12)

 

Investment Partnership

                       

     

LP Interests (Fully diluted 0.2%)

          1,487     1,487  

Fairway Group Acquisition Company(9)

 

Retail Grocery

                       

     

LIBOR plus 6.00%, Current Coupon 7.50%, Secured Debt (Maturity—March 3, 2017)(8)

    7,444     7,390     7,369  

Flexera Software LLC(9)

 

Software Licensing

                       

     

LIBOR Plus 9.75%, Current Coupon 11.00%, Secured Debt (Maturity—September 30, 2018)(8)

    3,000     2,771     2,970  

Fram Group Holdings, Inc.(9)

 

Manufacturer of Automotive Maintenance Products

                       

     

LIBOR plus 5.00%, Current Coupon 6.50%, Secured Debt (Maturity—July 29, 2017)(8)

    995     990     1,003  

     

LIBOR plus 9.00%, Current Coupon 10.50%, Secured Debt (Maturity—January 29, 2018)(8)

    1,000     995     986  
                         

                  1,985     1,989  

F-14


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

March 31, 2012

(in thousands)

(Unaudited)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Non-Control/Non-Affiliate Investments(5)

                           

Go Daddy Group, Inc.(9)

 

Domain Name Management

                       

     

LIBOR Plus 4.25%, Current Coupon 5.50%, Secured Debt (Maturity—December 17, 2018)(8)

    7,481     7,481     7,496  

Gundle/SLT Environmental, Inc.(9)

 

Manufacturer of Geosynthetic Lining Products

                       

     

LIBOR plus 5.50%, Current Coupon 7.00%, Secured Debt (Maturity—May 27, 2016)(8)

    2,978     2,952     2,963  

     

LIBOR Plus 9.50%, Current Coupon 13.00%, Secured Debt (Maturity—November 23, 2016)(8)

    2,000     1,964     1,980  
                         

                  4,916     4,943  

Hayden Acquisition, LLC

 

Manufacturer of Utility Structures

                       

     

8% Secured Debt (Maturity—April 1, 2012)

    1,800     1,781      

Helm Financial Corporation(9)

 

Railcar Leasing

                       

     

LIBOR Plus 5.00%, Current Coupon 6.25%, Secured Debt (Maturity—June 1, 2017)(8)

    1,980     1,962     1,953  

HMS Income LLC(10)(12)

 

Investment Management

                       

     

LIBOR plus 3.00%, Current Coupon 3.24%, Secured Debt (Maturity—December 12, 2012)

    7,500     7,500     7,500  

HOA Restaurant Group, LLC(9)

 

Casual Restaurant Group

                       

     

11.25% Bond (Maturity—April 1, 2017)

    2,000     2,000     1,975  

Hupah Finance Inc.(9)

 

Manufacturer of Industrial Machinery

                       

     

LIBOR Plus 5.00%, Current Coupon 6.25%, Secured Debt (Maturity—January 19, 2019)(8)

    3,000     2,941     3,024  

Il Fornaio Corporation(9)

 

Casual Restaurant Group

                       

     

LIBOR Plus 5.25%, Current Coupon 6.50%, Secured Debt (Maturity—June 10, 2017)(8)

    1,980     1,971     1,982  

Ipreo Holdings LLC(9)

 

Application Software for Capital Markets

                       

     

LIBOR Plus 6.50%, Current Coupon 8.00%, Secured Debt (Maturity—August 5, 2017)(8)

    4,229     4,153     4,165  

Ivy Hill Middle Market Credit Fund III, Ltd.(9)(12)

 

Asset Management

                       

     

LIBOR Plus 6.50%, Current Coupon 6.74%, Secured Debt (Maturity—January 15, 2022)

    2,000     1,664     1,658  

JJ Lease Funding Corp.(9)

 

Apparel Retail

                       

     

LIBOR Plus 8.50%, Current Coupon 10.00%, Secured Debt (Maturity—April 29, 2017)(8)

    3,900     3,797     3,013  

Kadmon Pharmaceuticals, LLC(9)

 

Biopharmaceutical Products

                       

     

LIBOR Plus 13.00%, Current Coupon 15.00%, Secured Debt (Maturity—October 31, 2012)(8)

    5,985     5,913     6,240  

Lawson Software, Inc.(9)

 

Application Software

                       

     

LIBOR Plus 5.25%, Current Coupon 6.75%, Secured Debt (Maturity—July 5, 2017)(8)

    4,975     4,796     4,995  

F-15


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

March 31, 2012

(in thousands)

(Unaudited)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Non-Control/Non-Affiliate Investments(5)

                           

Liqui-Box, Inc.(9)

 

Supplier of Specialty Packaging

                       

     

LIBOR plus 5.25%, Current Coupon 6.75%, Secured Debt (Maturity—December 29, 2017)(8)

    2,993     2,949     2,978  

Media Holdings, LLC(9)(12)

 

Internet Traffic Generator

                       

     

LIBOR plus 13.00%, Current Coupon 15.00%, Secured Debt (Maturity—April 28, 2014)(8)

    5,000     5,195     5,200  

Medpace Intermediateco, Inc.(9)

 

Clinical Trial Development and Execution

                       

     

LIBOR Plus 5.00%, Current Coupon 6.50%, Secured Debt (Maturity—June 17, 2017)(8)

    4,963     4,896     4,814  

Metal Services LLC(9)

 

Steel Mill Services

                       

     

LIBOR Plus 7.50%, Current Coupon 9.00%, Secured Debt (Maturity—January 24, 2018)(8)

    7,900     7,745     7,959  

Metropolitan Health Networks, Inc.(9)(12)

 

Healthcare Network Provider

                       

     

LIBOR plus 5.50%, Current Coupon 7.00%, Secured Debt (Maturity—October 4, 2016)(8)

    1,980     1,953     1,921  

     

LIBOR plus 11.75%, Current Coupon 13.50%, Secured Debt (Maturity—October 4, 2017)(8)

    3,250     3,188     3,185  
                         

                  5,141     5,106  

Milk Specialties Company(9)

 

Processor of Nutrition Products

                       

     

LIBOR plus 7.00%, Current Coupon 8.50%, Secured Debt (Maturity—December 27, 2017)(8)

    3,990     3,874     3,995  

     

LIBOR plus 13.00%, Current Coupon 14.50%, Secured Debt (Maturity—December 27, 2018)(8)

    1,000     961     990  
                         

                  4,835     4,985  

Miramax Film NY, LLC(9)

 

Motion Picture Producer and Distributor

                       

     

Class B Units (Fully diluted 0.2%)

          500     500  

Mood Media Corporation(9)(12)

 

Music Provider

                       

     

LIBOR Plus 5.50%, Current Coupon 7.00%, Secured Debt (Maturity—May 6, 2018)(8)

    2,978     2,949     2,917  

Morton's Restaurant Group, Inc.(9)

 

Restaurants

                       

     

LIBOR Plus 7.25%, Current Coupon 8.75%, Secured Debt (Maturity—February 1, 2017)(8)

    3,000     2,927     3,000  

MultiPlan, Inc.(9)

 

Managed Healthcare Provider

                       

     

LIBOR Plus 3.25%, Current Coupon 4.75%, Secured Debt (Maturity—August 26, 2017)(8)

    2,913     2,913     2,893  

National Healing Corporation(9)

 

Wound Care Management

                       

     

LIBOR plus 6.75%, Current Coupon 8.25%, Secured Debt (Maturity—November 30, 2017)(8)

    2,743     2,611     2,716  

     

LIBOR plus 10.00%, Current Coupon 11.50%, Secured Debt (Maturity—November 30, 2018)(8)

    1,500     1,413     1,500  

     

Common Equity (Fully diluted 0.02%)

          50     50  
                         

                  4,074     4,266  

F-16


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

March 31, 2012

(in thousands)

(Unaudited)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Non-Control/Non-Affiliate Investments(5)

                           

Northland Cable Television, Inc.(9)

 

Television Broadcasting

                       

     

LIBOR Plus 6.00%, Current Coupon 7.75%, Secured Debt (Maturity—December 30, 2016)(8)

    4,919     4,798     4,796  

Pacific Architects and Engineers Incorporated(9)

 

Provider of Contract Support Services

                       

     

LIBOR Plus 6.00%, Current Coupon 7.50%, Secured Debt (Maturity—April 4, 2017)(8)

    3,995     3,920     3,975  

Phillips Plastic Corporation(9)

 

Custom Molder of Plastics and Metals

                       

     

LIBOR Plus 5.00%, Current Coupon 6.50%, Secured Debt (Maturity—February 12, 2017)(8)

    1,741     1,725     1,738  

Physician Oncology Services, L.P.(9)

 

Provider of Radiation Therapy and Oncology Services

                       

     

LIBOR plus 4.75%, Current Coupon 6.25%, Secured Debt (Maturity—January 31, 2017)(8)

    942     934     909  

Pierre Foods, Inc.(9)

 

Foodservice Supplier

                       

     

LIBOR plus 5.25%, Current Coupon 7.00%, Secured Debt (Maturity—September 30, 2016)(8)

    4,938     4,860     4,947  

     

LIBOR plus 9.50%, Current Coupon 11.25%, Secured Debt (Maturity—September 29, 2017)(8)

    2,000     1,941     2,018  
                         

                  6,801     6,965  

Preferred Proppants, LLC(9)

 

Producer of Sand Based Proppants

                       

     

LIBOR plus 6.00%, Current Coupon 7.50%, Secured Debt (Maturity—December 15, 2016)(8)

    4,988     4,870     4,913  

Race Point Power, LLC(9)

 

Electric Utilities / Power Generation

                       

     

LIBOR Plus 6.00%, Current Coupon 7.75%, Secured Debt (Maturity—January 11, 2018)(8)

    2,238     2,200     2,235  

Radio One, Inc.(9)

 

Radio Broadcasting

                       

     

LIBOR Plus 6.00%, Current Coupon 7.50%, Secured Debt (Maturity—March 31, 2016)(8)

    2,970     2,921     2,954  

Shearer's Foods, Inc.(9)

 

Manufacturer of Food/ Snacks

                       

     

12.00% Current /3.75% PIK Secured Debt (Maturity—March 31, 2016)

    4,303     4,222     4,174  

SonicWALL, Inc.(9)

 

IT Security Provider

                       

     

LIBOR Plus 6.25%, Current Coupon 8.25%, Secured Debt (Maturity—January 23, 2016)(8)

    878     879     883  

Sourcehov LLC(9)

 

Business Process Services

                       

     

LIBOR plus 5.38%, Current Coupon 6.63%, Secured Debt (Maturity—April 28, 2017)(8)

    2,985     2,892     2,749  

     

LIBOR plus 9.25%, Current Coupon 10.50%, Secured Debt (Maturity—April 30, 2018)(8)

    5,000     4,496     3,963  
                         

                  7,388     6,712  

Speedy Cash Intermediate Holdings Corp.(9)

 

Consumer Finance

                       

     

10.75% Bond (Maturity—May 15, 2018)

    2,000     2,000     2,070  

F-17


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

March 31, 2012

(in thousands)

(Unaudited)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Non-Control/Non-Affiliate Investments(5)

                           

Surgery Center Holdings, Inc.(9)

 

Ambulatory Surgical Centers

                       

     

LIBOR Plus 5.00%, Current Coupon 6.50%, Secured Debt (Maturity—February 6, 2017)(8)

    4,950     4,928     4,690  

The Tennis Channel, Inc.

 

Television-Based Sports Broadcasting

                       

     

LIBOR Plus 6% / 4% PIK, Current Coupon with PIK 14%, Secured Debt (Maturity—January 1, 2013)(8)

    10,717     11,776     11,776  

     

Warrants (Fully diluted 0.1%)

          235     235  
                         

                  12,011     12,011  

Totes Isotoner Corporation(9)

 

Weather Accessory Retail

                       

     

LIBOR Plus 5.75%, Current Coupon 7.25%, Secured Debt (Maturity—July 7, 2017)(8)

    4,964     4,874     4,914  

Tube City IMS Corporation(9)(12)

 

Steel Mill Services

                       

     

LIBOR Plus 4.50%, Current Coupon 5.75%, Secured Debt (Maturity—March 19, 2019)(8)

    1,000     990     1,001  

Ulterra Drilling Technologies, L.P.(9)

 

Manufacturer of Oil and Gas Drilling Products

                       

     

LIBOR plus 7.50%, Current Coupon 9.50%, Secured Debt (Maturity—June 9, 2016)(8)

    6,488     6,375     6,504  

     

LIBOR plus 7.50%, Current Coupon 9.50%, Secured Debt (Maturity—June 9, 2016)(8)

    2,348     2,305     2,333  
                         

                  8,680     8,837  

UniTek Global Services, Inc.(9)

 

Provider of Outsourced Infrastructure Services

                       

     

LIBOR plus 7.50%, Current Coupon 9.00%, Secured Debt (Maturity—April 15, 2018)(8)

    6,418     6,245     6,321  

Vantage Specialties, Inc.(9)

 

Manufacturer of Specialty Chemicals

                       

     

LIBOR Plus 5.50%, Current Coupon 7.00%, Secured Debt (Maturity—February 10, 2018)(8)

    4,000     3,922     3,996  

VFH Parent LLC(9)

 

Electronic Trading and Market Making

                       

     

LIBOR Plus 6.00%, Current Coupon 7.50%, Secured Debt (Maturity—July 8, 2016)(8)

    3,889     3,821     3,909  

Visant Corporation(9)

 

School Affinity Stores

                       

     

LIBOR Plus 4.00%, Current Coupon 5.25%, Secured Debt (Maturity—December 22, 2016)(8)

    3,998     3,998     3,911  

Vision Solutions, Inc.(9)

 

Computer Software

                       

     

LIBOR plus 4.50%, Current Coupon 6.00%, Secured Debt (Maturity—July 23, 2016)(8)

    2,801     2,566     2,579  

     

LIBOR plus 8.00%, Current Coupon 9.50%, Secured Debt (Maturity—July 23, 2017)(8)

    5,000     4,956     4,850  
                         

                  7,522     7,429  

F-18


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

March 31, 2012

(in thousands)

(Unaudited)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Non-Control/Non-Affiliate Investments(5)

                           

Walter Investment Management Corp.(9)(12)

 

Real Estate Services

                       

     

LIBOR plus 6.25%, Current Coupon 7.75%, Secured Debt (Maturity—June 30, 2016)(8)

    2,775     2,725     2,792  

     

LIBOR plus 11.00%, Current Coupon 12.50%, Secured Debt (Maturity—December 30, 2016)(8)

    3,000     2,946     3,080  
                         

                  5,671     5,872  

Willis Group, LLC

 

Staffing and Recruitment Services

                       

     

12% Current / 3% PIK Secured Debt (Maturity—December 19, 2014)

    9,000     8,835     8,835  

Wyle Services Corporation(9)

 

Specialized Engineering and Technical Services

                       

     

LIBOR Plus 4.25%, Current Coupon 5.75%, Secured Debt (Maturity—March 26, 2017)(8)

    3,713     3,693     3,676  

Yankee Cable Acquisition, LLC(9)

 

Broadband Service Provider

                       

     

LIBOR Plus 4.50%, Current Coupon 6.50%, Secured Debt (Maturity—August 26, 2016)(8)

    3,790     3,746     3,782  
                         

Subtotal Non-Control/Non-Affiliate Investments (46.2% of total investments at fair value)

   
313,646
   
313,334
 
                         

Main Street Capital Partners, LLC (Investment Manager)

 

Asset Management

 

100% of Membership Interests

         
2,668
   
202
 
                         

Total Portfolio Investments, March 31, 2012

             
599,807
   
664,299
 
                         

                           

F-19


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

March 31, 2012

(in thousands)

(Unaudited)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Marketable Securities and Idle Funds Investments

                           

Comstock Resources Inc. Bond(12)

 

Investments in Marketable Securities and Diversified, Registered Bond Funds

                       

     

8.38% Bond (Maturity—October 15, 2017)

    2,000     1,907     1,945  

Fairfield Redevelopment Bond(12)

                           

     

9.50% Bond (Maturity—March 1, 2021)

    1,085     1,101     1,180  

General Motors Company(12)

                           

     

Preferred stock (0.59% cumulative)(7)

          255     213  

NRG Energy Inc Bond(12)

                           

     

8.00% Bond (Maturity—June 15, 2017)

    2,000     2,024     2,015  

San Diego Redevelopment Bond(12)

                           

     

7.38% Bond (Maturity—September 1, 2037)

    275     275     285  

Stanton Redevelopment Tax Bond(12)

                           

     

9.00% Bond (Maturity—December 1, 2021)

    980     1,012     1,026  

Stora Enso OYJ Bond(12)

                           

     

7.25% Bond (Maturity—April 15, 2036)

    1,900     1,533     1,663  

Toll Road Investors Partnership II, LP Bond(12)

                           

     

Zero Coupon Bond (Maturity—February 15, 2033)

    7,500     1,649     1,541  

United Refining Company Bond(12)

                           

     

10.50% Bond (Maturity—February 28, 2017)

    3,990     3,967     4,120  

Other Marketable Securities and Idle Funds Investments(11)(12)

   
343
   
357
 
                         

Subtotal Marketable Securities and Idle Funds Investments (2.1% of total investments at fair value)

   
14,066
   
14,345
 
                         

Total Investments, March 31, 2012

            $ 613,873   $ 678,644  
                         

(1)
Debt investments are generally income producing. Equity and warrants are non-income producing, unless otherwise noted.

(2)
See Note C for summary geographic location of portfolio companies.

(3)
Controlled investments are defined by the Investment Company Act of 1940, as amended ("1940 Act") as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained.

(4)
Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% of the voting securities are owned and the investments are not classified as Controlled investments.

(5)
Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control Investments nor Affiliate Investments.

(6)
Principal is net of prepayments. Cost is net of prepayments and accumulated unearned income.

(7)
Income producing through dividends or distributions.

(8)
Index based floating interest rate is subject to contractual minimum interest rates.

(9)
Middle Market portfolio investment.

(10)
Other Portfolio investment.

(11)
Other Marketable Securities and Idle Funds Investments generally consist of investments in secured and rated debt investments and/or diversified bond funds.

(12)
Investment is not a "qualifying asset" as defined under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets.

F-20


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2011

(in thousands)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Control Investments(3)

                           

Café Brazil, LLC

 

Casual Restaurant Group

                       

     

12% Secured Debt (Maturity—April 20, 2013)

    1,400     1,399     1,400  

     

Member Units (Fully diluted 41.0%)(7)

          42     3,430  
                         

                  1,441     4,830  

California Healthcare Medical Billing, Inc.

 

Healthcare Services

                       

     

12% Secured Debt (Maturity—October 17, 2015)

    8,623     8,290     8,528  

     

Warrants (Fully diluted 21.0%)

          1,193     3,380  

     

Common Stock (Fully diluted 9.6%)

          1,177     1,560  
                         

                  10,660     13,468  

CBT Nuggets, LLC

 

Produces and Sells IT Training Certification Videos

                       

     

14% Secured Debt (Maturity—December 31, 2013)

    1,750     1,750     1,750  

     

Member Units (Fully diluted 40.8%)(7)

          1,300     5,570  
                         

                  3,050     7,320  

Ceres Management, LLC (Lambs)

 

Aftermarket Automotive Services Chain

                       

     

14% Secured Debt (Maturity—May 31, 2013)

    3,770     3,749     3,749  

     

9.5% Secured Debt (Lamb's Real Estate Investment I, LLC) (Maturity—October 1, 2025)

    1,115     1,115     1,115  

     

Member Units (Fully diluted 79.0%)

          4,773     1,050  

     

Member Units (Lamb's Real Estate Investment I, LLC) (Fully diluted 100%)

          625     800  
                         

                  10,262     6,714  

Condit Exhibits, LLC

 

Tradeshow Exhibits / Custom Displays

                       

     

9% Current / 9% PIK Secured Debt (Maturity—July 1, 2013)

    4,431     4,406     4,406  

     

Warrants (Fully diluted 47.9%)

          320     560  
                         

                  4,726     4,966  

Currie Acquisitions, LLC

 

Retail Electric Bikes

                       

     

12% Secured Debt (Maturity—March 1, 2015)

    4,750     4,112     4,750  

     

Warrants (Fully diluted 47.3%)

          2,566     100  
                         

                  6,678     4,850  

Gulf Manufacturing, LLC

 

Industrial Metal Fabrication

                       

     

9% PIK Secured Debt (Maturity—June 30, 2017)

    1,185     1,185     1,185  

     

Member Units (Fully diluted 34.2%)(7)

          2,980     9,840  
                         

                  4,165     11,025  

Harrison Hydra-Gen, Ltd.

 

Manufacturer of Hydraulic Generators

                       

     

12% Secured Debt (Maturity—June 4, 2015)

    5,507     4,938     5,230  

     

Preferred stock (8% cumulative)(7)

          1,081     1,081  

     

Warrants (Fully diluted 34.5%)

          718     2,240  
                         

                  6,737     8,551  

Hawthorne Customs and Dispatch Services, LLC

 

Transportation / Logistics

                       

     

Member Units (Fully diluted 47.6%)(7)

          589     1,410  

     

Member Units (Wallisville Real Estate, LLC) (Fully diluted 59.1%)(7)

          1,215     1,215  
                         

                  1,804     2,625  

Hydratec, Inc.

 

Designer and Installer of Micro—Irrigation Systems

                       

     

Common Stock (Fully diluted 92.5%)(7)

          7,092     12,337  

F-21


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2011

(in thousands)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Control Investments(3)

                           

Indianapolis Aviation Partners, LLC

 

Fixed Base Operator

                       

     

12% Secured Debt (Maturity—September 15, 2014)

    4,270     4,003     4,120  

     

Warrants (Fully diluted 30.1%)

          1,129     1,650  
                         

                  5,132     5,770  

Jensen Jewelers of Idaho, LLC

 

Retail Jewelry Store

                       

     

Prime Plus 2%, Current Coupon 5.25%, Secured Debt (Maturity—November 14, 2013)(8)

    2,260     2,260     2,260  

     

13% Current / 6% PIK Secured Debt (Maturity—November 14, 2013)

    2,345     2,345     2,345  

     

Member Units (Fully diluted 60.8%)(7)

          811     1,750  
                         

                  5,416     6,355  

Lighting Unlimited, LLC

 

Commercial and Residential Lighting Products and Design Services

                       

     

8% Secured Debt (Maturity—August 22, 2012)

    2,000     1,984     1,984  

     

Preferred Stock (non-voting)

          510     510  

     

Warrants (Fully diluted 7.1%)

          54      

     

Common Stock (Fully diluted 70.0%)

          100     210  
                         

                  2,648     2,704  

Mid-Columbia Lumber Products, LLC

 

Manufacturer of Finger—Jointed Lumber Products

                       

     

10% Secured Debt (Maturity—December 18, 2014)

    1,250     1,250     1,250  

     

12% Secured Debt (Maturity—December 18, 2014)

    3,670     3,670     3,670  

     

9.5% Secured Debt (Mid—Columbia Real Estate, LLC) (Maturity—May 13, 2025)

    1,062     1,062     1,062  

     

Warrants (Fully diluted 9.2%)

          250     890  

     

Member Units (Fully diluted 42.9%)

          812     930  

     

Member Units (Mid—Columbia Real Estate, LLC) (Fully diluted 50.0%)(7)

          250     810  
                         

                  7,294     8,612  

NAPCO Precast, LLC

 

Precast Concrete Manufacturing

                       

     

Prime Plus 2%, Current Coupon 9%, Secured Debt (Maturity—February 1, 2013)(8)

    3,385     3,376     3,376  

     

18% Secured Debt (Maturity—February 1, 2013)

    5,173     5,142     5,142  

     

Member Units (Fully diluted 46.3%)(7)

          2,975     4,195  
                         

                  11,493     12,713  

NRI Clinical Research, LLC

 

Clinical Research Center

                       

     

14% Secured Debt (Maturity—September 8, 2016)

    5,500     5,183     5,183  

     

Warrants (Fully diluted 12.5%)

          252     252  

     

Member Units (Fully diluted 24.8%)

          500     500  
                         

                  5,935     5,935  

NRP Jones, LLC

 

Manufacturer of Hoses, Fittings and Assemblies

                       

     

12% Secured Debt (Maturity—December 22, 2016)

    12,100     11,041     11,041  

     

Warrants (Fully diluted 12.2%)

          817     817  

     

Member Units (Fully diluted 43.2%)

          2,900     2,900  
                         

                  14,758     14,758  

F-22


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2011

(in thousands)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Control Investments(3)

                           

NTS Holdings, Inc.

 

Trench and Traffic Safety Equipment Rental and Sales

                       

     

12% Secured Debt (Maturity—April 30, 2015)

    5,770     5,742     5,742  

     

Preferred Stock (12% cumulative, compounded quarterly)(7)

          11,918     11,918  

     

Common Stock (Fully diluted 72.3%)

          1,621     2,140  
                         

                  19,281     19,800  

OMi Holdings, Inc.

 

Manufacturer of Overhead Cranes

                       

     

12% Secured Debt (Maturity—April 1, 2013)

    7,974     7,950     7,950  

     

Common Stock (Fully diluted 48.0%)

          1,080     2,270  
                         

                  9,030     10,220  

Pegasus Research Group, LLC (Televerde)

 

Telemarketing and Data Services

                       

     

13% Current / 3% PIK Secured Debt (Maturity—January 6, 2016)

    6,160     6,089     6,089  

     

Member Units (Fully diluted 43.7%)

          1,250     1,250  
                         

                  7,339     7,339  

PPL RVs, Inc.

 

Recreational Vehicle Dealer

                       

     

18% Secured Debt (Maturity—June 10, 2015)

    4,235     4,186     4,235  

     

Common Stock (Fully diluted 51.1%)

          2,150     3,980  
                         

                  6,336     8,215  

Principle Environmental, LLC

 

Noise Abatement Services

                       

     

12% Secured Debt (Maturity—February 1, 2016)

    4,750     3,766     4,080  

     

12% Current / 2% PIK Secured Debt (Maturity—February 1, 2016)

    3,507     3,450     3,507  

     

Warrants (Fully diluted 14.6%)

          1,200     2,110  

     

Member Units (Fully diluted 25.0%)

          2,000     3,600  
                         

                  10,416     13,297  

River Aggregates, LLC

 

Processor of Construction Aggregates

                       

     

12% Secured Debt (Maturity—March 30, 2016)

    3,470     3,227     3,227  

     

Warrants (Fully diluted 20.0%)

          202     100  

     

Member Units (Fully diluted 40.0%)

          550     200  
                         

                  3,979     3,527  

The MPI Group, LLC

 

Manufacturer of Custom Hollow Metal Doors, Frames and Accessories

                       

     

4.5% Current / 4.5% PIK Secured Debt (Maturity—October 2, 2013)

    1,045     1,041     1,041  

     

6% Current / 6% PIK Secured Debt (Maturity—October 2, 2013)

    5,406     5,294     5,294  

     

Warrants (Fully diluted 47.1%)

          896      

     

Member Units (Non-voting)

          200      
                         

                  7,431     6,335  

Thermal and Mechanical Equipment, LLC

 

Commercial and Industrial Engineering Services

                       

     

Prime Plus 2%, Current Coupon 9%, Secured Debt (Maturity—September 25, 2014)(8)

    1,272     1,266     1,266  

     

13% Current / 5% PIK Secured Debt (Maturity—September 25, 2014)

    4,053     4,010     4,053  

     

Member Units (Fully diluted 50.0%)(7)

          1,000     5,660  
                         

                  6,276     10,979  

Uvalco Supply, LLC

 

Farm and Ranch Supply Store

                       

     

Member Units (Fully diluted 42.8%)(7)

          1,113     3,290  

F-23


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2011

(in thousands)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Control Investments(3)

                           

Van Gilder Insurance Corporation

 

Insurance Brokerage

                       

     

8% Secured Debt (Maturity—January 31, 2013)

    1,000     987     987  

     

8% Secured Debt (Maturity—January 31, 2016)

    1,721     1,705     1,705  

     

13% Secured Debt (Maturity—January 31, 2016)

    5,400     4,387     4,387  

     

Warrants (Fully diluted 10.0%)

          1,209     1,209  

     

Common Stock (Fully diluted 15.5%)

          2,500     2,500  
                         

                  10,788     10,788  

Vision Interests, Inc.

 

Manufacturer / Installer of Commercial Signage

                       

     

6.5% Current /6.5% PIK Secured Debt (Maturity—December 23, 2016)

    3,000     2,935     2,935  

     

Series A Prefered Stock (Fully diluted 33.3%)

        3,000     3,000  

     

Common Stock (Fully diluted 36.7%)

          3,706      
                         

                  9,641     5,935  

Ziegler's NYPD, LLC

 

Casual Restaurant Group

                       

     

Prime Plus 2%, Current Coupon 9%, Secured Debt (Maturity—October 1, 2013)(8)

    1,000     996     996  

     

13% Current / 5% PIK Secured Debt (Maturity—October 1, 2013)

    4,299     4,270     4,270  

     

Warrants (Fully diluted 46.6%)

          600     400  
                         

                  5,866     5,666  
                         

Subtotal Control Investments (34.9% of total investments at fair value)

          206,787     238,924  
                         

F-24


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2011

(in thousands)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Affiliate Investments(4)

                           

American Sensor Technologies, Inc.

 

Manufacturer of Commercial / Industrial Sensors

                       

     

9% Secured Debt (Maturity—May 31, 2012)

    3,046     3,039     3,039  

     

Warrants (Fully diluted 19.6%)

          50     3,100  
                         

                  3,089     6,139  

Compact Power Equipment Centers LLC

 

Equipment / Tool Rental

                       

     

6% Current / 6% PIK Secured Debt (Maturity—December 31, 2014)

    2,855     2,831     2,831  

     

8% PIK Secured Debt (Maturity—December 31, 2011)

    108     108     108  

     

Series A Member Units (8% cumulative)(7)

          853     853  

     

Member Units (Fully diluted 10.6%)

          1     1  
                         

                  3,793     3,793  

Drilling Info, Inc.

 

Information Services for the Oil and Gas Industry

                       

     

12% Secured Debt (Maturity—November 20, 2014)

    8,000     7,065     8,000  

     

8.75% Secured Debt (Maturity—April 18, 2016)

    750     750     750  

     

Warrants (Fully diluted 4.9%)

          1,250     10,360  

     

Common Stock (Fully diluted 2.4%)

          1,335     4,890  
                         

                  10,400     24,000  

East Teak Fine Hardwoods, Inc.

 

Hardwood Products

                       

     

Common Stock (Fully diluted 5.0%)

          480     380  

Gault Financial, LLC (RMB Capital, LLC)

 

Purchases and Manages Liquidation of Distressed Assets

                       

     

14% Secured Debt (Maturity—November 21, 2016)

    10,500     9,897     9,897  

     

Warrants (Fully diluted 22.5%)

          400     400  
                         

                  10,297     10,297  

Houston Plating and Coatings, LLC

 

Plating and Industrial Coating Services

                       

     

Member Units (Fully diluted 11.1%)(7)

          635     5,990  

Integrated Printing Solutions, LLC

 

Specialty Card Printing

                       

     

13% Secured Debt (Maturity—September 23, 2016)

    10,000     9,228     9,228  

     

Warrants (Fully diluted 9.0%)

          600     600  
                         

                  9,828     9,828  

IRTH Holdings, LLC

 

Damage Prevention Technology Information Services

                       

     

12% Secured Debt (Maturity—December 29, 2015)

    5,084     5,006     5,084  

     

Member Units (Fully diluted 22.3%)

          850     2,480  
                         

                  5,856     7,564  

KBK Industries, LLC

 

Specialty Manufacturer of Oilfield and Industrial Products

                       

     

10% Secured Debt (Maturity—March 31, 2012)

    15     15     15  

     

14% Secured Debt (Maturity—January 23, 2014)

    5,250     5,250     5,250  

     

Member Units (Fully diluted 18.8%)(7)

          341     2,800  
                         

                  5,606     8,065  

F-25


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2011

(in thousands)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Affiliate Investments(4)

                           

Laurus Healthcare, LP

 

Management of Outpatient Cardiac Cath Labs

                       

     

9% Secured Debt (Maturity—May 12, 2016)

    5,850     5,850     5,850  

     

Class A and C Units (Fully diluted 13.1%)(7)

          80     5,430  
                         

                  5,930     11,280  

Olympus Building Services, Inc.

 

Custodial / Facilities Services

                       

     

10% Current / 2% PIK Secured Debt (Maturity—March 27, 2014)

    2,434     2,306     2,306  

     

15% PIK Secured Debt (Maturity—March 27, 2014)

    994     994     994  

     

Warrants (Fully diluted 22.5%)

          470     70  
                         

                  3,770     3,370  

OnAsset Intelligence, Inc.

 

Transportation Monitoring / Tracking Services

                       

     

12% Secured Debt (Maturity—October 18, 2012)

    1,500     916     916  

     

Preferred Stock (7% cumulative) (Fully diluted 5.75%)(7)

          1,577     1,577  

     

Warrants (Fully diluted 4.0%)

          830     830  
                         

                  3,323     3,323  

OPI International Ltd.(11)

 

Oil and Gas Construction Services

                       

     

12% Secured Debt (Maturity—November 30, 2015)

    11,520     10,882     11,130  

     

Warrants (Fully diluted 8.0%)

          500     4,100  
                         

                  11,382     15,230  

Radial Drilling Services Inc.

 

Oil and Gas Technology

                       

     

12% Secured Debt (Maturity—November 23, 2016)

    4,200     3,367     3,367  

     

Warrants (Fully diluted 24.0%)

          758     758  
                         

                  4,125     4,125  

Samba Holdings, Inc.

 

Intelligent Driver Record Monitoring Software and Services

                       

     

12.5% Secured Debt (Maturity—November 17, 2016)

    3,000     2,941     2,941  

     

Common Stock (Fully diluted 14.7%)

          950     950  
                         

                  3,891     3,891  

Schneider Sales Management, LLC

 

Sales Consulting and Training

                       

     

13% Secured Debt (Maturity—October 15, 2013)

    3,568     3,488     250  

     

Warrants (Fully diluted 20.0%)

          45      
                         

                  3,533     250  

Spectrio LLC

 

Audio Messaging Services

                       

     

8% Secured Debt (Maturity—June 16, 2016)

    168     168     168  

     

12% Secured Debt (Maturity—June 16, 2016)

    13,475     13,008     13,340  

     

Warrants (Fully diluted 9.8%)

          887     2,720  
                         

                  14,063     16,228  

SYNEO, LLC

 

Manufacturer of Specialty Cutting Tools and Punches

                       

     

12% Secured Debt (Maturity—July 13, 2016)

    5,500     5,374     5,374  

     

10% Secured Debt (Maturity—May 4, 2026)

    1,440     1,412     1,412  

     

Member Units (Fully diluted 11.1%)

          1,000     1,000  
                         

                  7,786     7,786  

Walden Smokey Point, Inc.

 

Specialty Transportation Provider

                       

     

Common Stock (Fully diluted 12.6%)

          1,427     4,220  

F-26


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2011

(in thousands)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Affiliate Investments(4)

                           

WorldCall, Inc.

 

Telecommunication / Information Services

                       

     

13% Secured Debt (Maturity—April 22, 2012)

    646     646     646  

     

Common Stock (Fully diluted 10.0%)

          297      
                         

                  943     646  
                         

Subtotal Affiliate Investments (21.4% of total investments at fair value)

    110,157     146,405  
                         

F-27


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2011

(in thousands)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Non-Control/Non-Affiliate Investments(5)

                           

Academy, Ltd.(9)

 

Sporting Goods Stores

                       

     

LIBOR Plus 4.50%, Current Coupon 6.00%, Secured Debt (Maturity—August 3, 2018)(8)

    3,000     2,989     2,977  

Affinity Videonet, Inc.

 

Video Conferencing and Managed Services

                       

     

13% Secured Debt (Maturity—December 31, 2015)

    2,000     1,914     2,000  

     

13% Current / 1% PIK Secured Debt (Maturity—December 31, 2015)

    1,132     1,125     1,125  

     

Warrants (Fully diluted 2.6%)

          63     63  
                         

                  3,102     3,188  

API Technologies Corp.(9)

 

Manufacturer of Electrical Components and Equipment

                       

     

LIBOR Plus 6.25%, Current Coupon 7.75%, Secured Debt (Maturity—June 27, 2016)(8)

    2,486     2,406     2,374  

Arrowhead General Insurance Agency, Inc.(9)

 

Insurance

                       

     

LIBOR plus 5.75%, Current Coupon 7.50%, Secured Debt (Maturity—March 4, 2017)(8)

    3,970     3,900     3,932  

     

LIBOR plus 9.5%, Current Coupon 11.25%, Secured Debt (Maturity—September 30, 2017)(8)

    2,000     1,944     2,010  
                         

                  5,844     5,942  

ATI Acquisition I Corp.(9)

 

Physical Therapy Facilities

                       

     

LIBOR Plus 5.50%, Current Coupon 7.50%, Secured Debt (Maturity—March 11, 2016)(8)

    2,849     2,812     2,725  

Bourland and Leverich Supply Co., LLC(9)

 

Distributor of Oil and Gas Tubular Goods

                       

     

LIBOR Plus 9.00%, Current Coupon 11.00%, Secured Debt (Maturity—August 19, 2015)(8)

    4,191     4,028     4,065  

Brand Connections, LLC

 

Venue-Based Marketing and Media

                       

     

14% Secured Debt (Maturity—April 30, 2015)

    6,761     6,639     6,639  

Brickman Group Holdings, Inc.(9)

 

Commercial Landscape Services

                       

     

LIBOR Plus 5.50%, Current Coupon 7.25%, Secured Debt (Maturity—October 14, 2016)(8)

    1,990     1,962     1,997  

Business Development Corporation of America(10)(11)

 

Investment Management

                       

     

LIBOR plus 3.50%, Current Coupon 3.77%, Secured Debt (Maturity—January 14, 2013)

    5,900     5,900     5,900  

Carestream Health, Inc.(9)

 

Medical Imaging Products

                       

     

LIBOR Plus 3.50%, Current Coupon 5.00%, Secured Debt (Maturity—February 25, 2017)(8)

    2,985     2,704     2,690  

Centerplate, Inc.(9)

 

Food and Catering Services

                       

     

LIBOR Plus 8.50%, Current Coupon 10.50%, Secured Debt (Maturity—September 16, 2016)(8)

    2,970     2,896     2,966  

F-28


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2011

(in thousands)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Non-Control/Non-Affiliate Investments(5)

                           

CHI Overhead Doors, Inc.(9)

 

Manufacturer of Overhead Garage Doors

                       

     

LIBOR Plus 5.75%, Current Coupon 7.25%, Secured Debt (Maturity—August 17, 2017)(8)

    2,494     2,446     2,462  

     

LIBOR Plus 9.50%, Current Coupon 11.00%, Secured Debt (Maturity—February 17, 2018)(8)

    2,500     2,452     2,463  
                         

                  4,898     4,925  

Diversified Machine, Inc.(9)

 

Automotive Component Supplier

                       

     

LIBOR plus 7.75%, Current Coupon 9.25%, Secured Debt (Maturity—November 28, 2017)(8)

    2,000     1,960     2,001  

EnCap Energy Capital Fund VIII, L.P.(10)(11)

 

Investment Partnership

                       

     

LP Interests (Fully diluted 0.2%)

          709     709  

Fairway Group Acquisition Company(9)

 

Retail Grocery

                       

     

LIBOR plus 6.00%, Current Coupon 7.50%, Secured Debt (Maturity—March 3, 2017)(8)

    7,463     7,403     7,253  

Flexera Software LLC(9)

 

Software Licensing

                       

     

LIBOR Plus 9.75%, Current Coupon 11.00%, Secured Debt (Maturity—September 30, 2018)(8)

    3,000     2,765     2,790  

Fram Group Holdings, Inc.(9)

 

Manufacturer of Automotive Maintenance Products

                       

     

LIBOR plus 5.00%, Current Coupon 6.50%, Secured Debt (Maturity—July 29, 2017)(8)

    998     993     998  

     

LIBOR plus 9.00%, Current Coupon 10.50%, Secured Debt (Maturity—January 29, 2018)(8)

    1,000     995     968  
                         

                  1,988     1,966  

Golden Nugget, LLC(9)

 

Hotel and Gaming

                       

     

LIBOR Plus 8.50%, Current Coupon 10.00%, Secured Debt (Maturity—May 24, 2016)(8)

    10,000     9,636     9,450  

Gundle/SLT Environmental, Inc.(9)

 

Manufacturer of Geosynthetic Lining Products

                       

     

LIBOR plus 5.50%, Current Coupon 7.00%, Secured Debt (Maturity—May 27, 2016)(8)

    2,985     2,958     2,940  

     

LIBOR Plus 9.50%, Current Coupon 13.00%, Secured Debt (Maturity—November 23, 2016)(8)

    4,000     3,926     3,980  
                         

                  6,884     6,920  

Hayden Acquisition, LLC

 

Manufacturer of Utility Structures

                       

     

8% Secured Debt (Maturity—January 1, 2012)

    1,800     1,781      

Helm Financial Corporation(9)

 

Railcar Leasing

                       

     

LIBOR Plus 5.00%, Current Coupon 6.25%, Secured Debt (Maturity—June 1, 2017)(8)

    1,985     1,967     1,940  

Henniges Automotive Holdings, Inc.(9)

 

Auto Parts

                       

     

LIBOR Plus 10.00%, Current Coupon 12.00%, Secured Debt (Maturity—October 28, 2016)(8)

    2,833     2,785     2,785  

HMS Income LLC(10)(11)

 

Investment Management

                       

     

LIBOR plus 3.00%, Current Coupon 3.27%, Secured Debt (Maturity—December 12, 2012)

    7,500     7,500     7,500  

F-29


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2011

(in thousands)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Non-Control/Non-Affiliate Investments(5)

                           

HOA Restaurant Group, LLC(9)

 

Casual Restaurant Group

                       

     

11.25% Bond (Maturity—April 1, 2017)

    2,000     2,000     1,865  

Il Fornaio Corporation(9)

 

Casual Restaurant Group

                       

     

LIBOR Plus 5.25%, Current Coupon 6.50%, Secured Debt (Maturity—June 10, 2017)(8)

    1,985     1,976     1,978  

Ipreo Holdings LLC(9)

 

Application Software for Capital Markets

                       

     

LIBOR Plus 6.50%, Current Coupon 8.00%, Secured Debt (Maturity—August 5, 2017)(8)

    4,239     4,160     4,144  

Ivy Hill Middle Market Credit Fund III, Ltd.(9)(11)

 

Asset Management

                       

     

LIBOR Plus 6.50%, Current Coupon 6.77%, Secured Debt (Maturity—January 15, 2022)

    2,000     1,659     1,658  

JJ Lease Funding Corp.(9)

 

Apparel Retail

                       

     

LIBOR Plus 8.50%, Current Coupon 10.00%, Secured Debt (Maturity—April 29, 2017)(8)

    3,950     3,842     3,160  

Kadmon Pharmaceuticals, LLC(9)

 

Biopharmaceutical Products

                       

     

LIBOR Plus 13.00%, Current Coupon 15.00%, Secured Debt (Maturity—October 31, 2012)(8)

    6,000     5,899     6,255  

Lawson Software, Inc.(9)

 

Application Software

                       

     

LIBOR Plus 5.25%, Current Coupon 6.75%, Secured Debt (Maturity—July 5, 2017)(8)

    4,988     4,801     4,875  

Liqui-Box, Inc.(9)

 

Supplier of Specialty Packaging

                       

     

LIBOR plus 5.25%, Current Coupon 6.75%, Secured Debt (Maturity—December 29, 2017)(8)

    3,000     2,955     2,985  

Media Holdings, LLC(9)(11)

 

Internet Traffic Generator

                       

     

LIBOR plus 13.00%, Current Coupon 15.00%, Secured Debt (Maturity—April 28, 2014)(8)

    5,000     5,129     5,000  

Medpace Intermediateco, Inc.(9)

 

Clinical Trial Development and Execution

                       

     

LIBOR Plus 5.00%, Current Coupon 6.50%, Secured Debt (Maturity—June 17, 2017)(8)

    4,975     4,905     4,726  

Megapath, Inc.(9)

 

Communications Technology

                       

     

LIBOR plus 10.00%, Current Coupon 12.00%, Secured Debt (Maturity—November 3, 2015)(8)

    3,600     3,541     3,546  

Metropolitan Health Networks, Inc.(9)(11)

 

Healthcare Network Provider

                       

     

LIBOR plus 5.50%, Current Coupon 7.00%, Secured Debt (Maturity—October 4, 2016)(8)

    2,000     1,971     1,940  

     

LIBOR plus 11.75%, Current Coupon 13.50%, Secured Debt (Maturity—October 4, 2017)(8)

    3,250     3,187     3,185  
                         

                  5,158     5,125  

F-30


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2011

(in thousands)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Non-Control/Non-Affiliate Investments(5)

                           

Milk Specialties Company(9)

 

Processor of Nutrition Products

                       

     

LIBOR plus 7.00%, Current Coupon 8.50%, Secured Debt (Maturity—December 27, 2017)(8)

    4,000     3,880     3,900  

     

LIBOR plus 13.00%, Current Coupon 14.50%, Secured Debt (Maturity—December 27, 2018)(8)

    1,000     960     965  
                         

                  4,840     4,865  

Miramax Film NY, LLC(9)

 

Motion Picture Producer and Distributor

                       

     

Class B Units (Fully diluted 0.2%)

          500     500  

Mood Media Corporation(9)(11)

 

Music Provider

                       

     

LIBOR Plus 5.50%, Current Coupon 7.00%, Secured Debt (Maturity—May 6, 2018)(8)

    2,985     2,956     2,779  

MultiPlan, Inc.(9)

 

Managed Healthcare Provider

                       

     

LIBOR Plus 3.25%, Current Coupon 4.75%, Secured Debt (Maturity—August 26, 2017)(8)

    2,956     2,956     2,821  

National Healing Corporation(9)

 

Wound Care Management

                       

     

LIBOR plus 6.75%, Current Coupon 8.25%, Secured Debt (Maturity—November 30, 2017)(8)

    2,750     2,614     2,653  

     

LIBOR plus 10.00%, Current Coupon 11.50%, Secured Debt (Maturity—November 30, 2018)(8)

    1,500     1,411     1,433  

     

Common Equity (Fully diluted 0.02%)

          50     50  
                         

                  4,075     4,136  

Northland Cable Television, Inc.(9)

 

Television Broadcasting

                       

     

LIBOR Plus 6.00%, Current Coupon 7.75%, Secured Debt (Maturity—December 30, 2016)(8)

    4,950     4,823     4,802  

Ocwen Financial Corporation(9)(11)

 

Residential and Commercial Loan Services

                       

     

LIBOR Plus 5.50%, Current Coupon 7.00%, Secured Debt (Maturity—September 1, 2016)(8)

    4,750     4,660     4,685  

Pacific Architects and Engineers Incorporated(9)

 

Provider of Contract Support Services

                       

     

LIBOR Plus 6.00%, Current Coupon 7.50%, Secured Debt (Maturity—April 4, 2017)(8)

    3,995     3,917     3,875  

Phillips Plastic Corporation(9)

 

Custom Molder of Plastics and Metals

                       

     

LIBOR Plus 5.00%, Current Coupon 6.50%, Secured Debt (Maturity—February 12, 2017)(8)

    1,750     1,733     1,737  

Physician Oncology Services, L.P.(9)

 

Provider of Radiation Therapy and Oncology Services

                       

     

LIBOR plus 4.75%, Current Coupon 6.25%, Secured Debt (Maturity—January 31, 2017)(8)

    942     934     904  

Pierre Foods, Inc.(9)

 

Foodservice Supplier

                       

     

LIBOR plus 5.25%, Current Coupon 7.00%, Secured Debt (Maturity—September 30, 2016)(8)

    4,950     4,868     4,945  

     

LIBOR plus 9.50%, Current Coupon 11.25%, Secured Debt (Maturity—September 29, 2017)(8)

    2,000     1,939     1,995  
                         

                  6,807     6,940  

F-31


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2011

(in thousands)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Non-Control/Non-Affiliate Investments(5)

                           

Preferred Proppants, LLC(9)

 

Producer of Sand Based Proppants

                       

     

LIBOR plus 6.00%, Current Coupon 7.50%, Secured Debt (Maturity—December 15, 2016)(8)

    5,000     4,877     4,889  

Race Point Power, LLC(9)

 

Electric Utilities / Power Generation

                       

     

LIBOR Plus 6.00%, Current Coupon 7.75%, Secured Debt (Maturity—January 11, 2018)(8)

    4,658     4,576     4,617  

Radio One, Inc.(9)

 

Radio Broadcasting

                       

     

LIBOR Plus 6.00%, Current Coupon 7.50%, Secured Debt (Maturity—March 31, 2016)(8)

    2,978     2,925     2,775  

Shearer's Foods, Inc.(9)

 

Manufacturer of Food/ Snacks

                       

     

12.00% Current /3.75% PIK Secured Debt (Maturity—March 31, 2016)

    4,262     4,179     4,092  

SonicWALL, Inc.(9)

 

IT Security Provider

                       

     

LIBOR Plus 6.25%, Current Coupon 8.25%, Secured Debt (Maturity—January 23, 2016)(8)

    1,072     1,073     1,074  

Sourcehov LLC(9)

 

Business Process Services

                       

     

LIBOR plus 5.38%, Current Coupon 6.63%, Secured Debt (Maturity—April 28, 2017)(8)

    2,993     2,896     2,526  

     

LIBOR plus 9.25%, Current Coupon 10.50%, Secured Debt (Maturity—April 30, 2018)(8)

    3,000     2,872     2,505  
                         

                  5,768     5,031  

Speedy Cash Intermediate Holdings Corp.(9)

 

Consumer Finance

                       

     

10.75% Bond (Maturity—May 15, 2018)

    2,000     2,000     2,010  

Surgery Center Holdings, Inc.(9)

 

Ambulatory Surgical Centers

                       

     

LIBOR Plus 5.00%, Current Coupon 6.50%, Secured Debt (Maturity—February 6, 2017)(8)

    4,963     4,940     4,628  

The Tennis Channel, Inc.

 

Television-Based Sports Broadcasting

                       

     

LIBOR Plus 6% / 4% PIK, Current Coupon with PIK 14%, Secured Debt (Maturity—January 1, 2013)(8)

    10,610     11,450     11,450  

     

Warrants (Fully diluted 0.1%)

          235     235  
                         

                  11,685     11,685  

Totes Isotoner Corporation(9)

 

Weather Accessory Retail

                       

     

LIBOR Plus 5.75%, Current Coupon 7.25%, Secured Debt (Maturity—July 7, 2017)(8)

    4,976     4,883     4,839  

Ulterra Drilling Technologies, L.P.(9)

 

Manufacturer of Oil and Gas Drilling Products

                       

     

LIBOR plus 7.50%, Current Coupon 9.50%, Secured Debt (Maturity—June 9, 2016)(8)

    6,572     6,452     6,441  

     

LIBOR plus 7.50%, Current Coupon 9.50%, Secured Debt (Maturity—June 9, 2016)(8)

    1,848     1,803     1,754  
                         

                  8,255     8,195  

UniTek Global Services, Inc.(9)

 

Provider of Outsourced Infrastructure Services

                       

     

LIBOR plus 7.50%, Current Coupon 9.00%, Secured Debt (Maturity—April 15, 2018)(8)

    6,434     6,256     6,304  

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MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2011

(in thousands)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Non-Control/Non-Affiliate Investments(5)

                           

VFH Parent LLC(9)

 

Electronic Trading and Market Making

                       

     

LIBOR Plus 6.00%, Current Coupon 7.50%, Secured Debt (Maturity—July 8, 2016)(8)

    4,180     4,103     4,195  

Visant Corporation(9)

 

School Affinity Stores

                       

     

LIBOR Plus 4.00%, Current Coupon 5.25%, Secured Debt (Maturity—December 22, 2016)(8)

    3,998     3,998     3,760  

Vision Solutions, Inc.(9)

 

Computer Software

                       

     

LIBOR plus 4.50%, Current Coupon 6.00%, Secured Debt (Maturity—July 23, 2016)(8)

    2,838     2,586     2,585  

     

LIBOR plus 8.00%, Current Coupon 9.50%, Secured Debt (Maturity—July 23, 2017)(8)

    5,000     4,955     4,850  
                         

                  7,541     7,435  

Walter Investment Management Corp.(9)(11)

 

Real Estate Services

                       

     

LIBOR plus 6.25%, Current Coupon 7.75%, Secured Debt (Maturity—June 30, 2016)(8)

    2,888     2,833     2,886  

     

LIBOR plus 11.00%, Current Coupon 12.50%, Secured Debt (Maturity—December 30, 2016)(8)

    3,000     2,944     3,036  
                         

                  5,777     5,922  

Willis Group, LLC

 

Staffing and Recruitment Services

                       

     

12% Current / 3% PIK Secured Debt (Maturity—December 19, 2014)

    9,000     8,824     8,824  

Wyle Services Corporation(9)

 

Specialized Engineering and Technical Services

                       

     

LIBOR Plus 4.25%, Current Coupon 5.75%, Secured Debt (Maturity—March 26, 2017)(8)

    3,735     3,715     3,657  

Yankee Cable Acquisition, LLC(9)

 

Broadband Service Provider

                       

     

LIBOR Plus 4.50%, Current Coupon 6.50%, Secured Debt (Maturity—August 26, 2016)(8)

    3,950     3,902     3,900  
                         

Subtotal Non-Control/Non-Affiliate Investments (39.6% of total investments at fair value)

    275,061     270,895  
                         

Main Street Capital Partners, LLC (Investment Manager) (0.3% of total investments at fair value)

 

Asset Management

                       

     

100% of Membership Interests

          4,284     1,869  
                         

Total Portfolio Investments, December 31, 2011

    596,289     658,093  
                         

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MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2011

(in thousands)

Portfolio Company
  Business Description
  Type of Investment(1)(2)
  Principal(6)
  Cost(6)
  Fair Value
 
   

Marketable Securities and Idle Funds Investments

                           

A. M. Castle & Co. Bond(11)

 

Investments in Marketable Securities and Diversified, Registered Bond Funds

                       

     

12.75% Bond (Maturity—December 15, 2016)

    3,000     2,896     3,015  

Fairfield Redevelopment Bond(11)

                           

     

9.50% Bond (Maturity—March 1, 2021)

    3,085     3,132     3,254  

General Motors Company(11)

                           

     

Preferred stock (0.59% cumulative)(7)

          255     175  

Industry Bond(11)

                           

     

8.00% Bond (Maturity—January 1, 2020)

    3,500     3,668     3,763  

Pretium Packaging Bond(11)

                           

     

11.50% Bond (Maturity—April 1, 2016)

    4,500     4,515     4,410  

San Diego Redevelopment Bond(11)

                           

     

7.38% Bond (Maturity—September 1, 2037)

    275     275     284  

Stanton Redevelopment Tax Bond(11)

                           

     

9.00% Bond (Maturity—December 1, 2021)

    980     1,012     1,024  

Stora Enso OYJ Bond(11)

                           

     

7.25% Bond (Maturity—April 15, 2036)

    5,700     4,596     4,646  

Toll Road Investors Partnership II, LP Bond(11)

                           

     

Zero Coupon Bond (Maturity—February 15, 2033)

    7,500     1,620     1,940  

United Refining Company Bond(11)

                           

     

10.50% Bond (Maturity—February 28, 2017)

    3,990     3,966     3,731  
                         

Subtotal Marketable Securities and Idle Funds Investments (3.8% of total investments at fair value)

    25,935     26,242  
                         

Total Investments, December 31, 2011

                $ 622,224   $ 684,335  
                         

(1)
Debt investments are generally income producing. Equity and warrants are non-income producing, unless otherwise noted.

(2)
See Note C for summary geographic location of portfolio companies.

(3)
Controlled investments are defined by the Investment Company Act of 1940, as amended ("1940 Act") as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained.

(4)
Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% of the voting securities are owned and the investments are not classified as Controlled investments.

(5)
Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control Investments nor Affiliate Investments.

(6)
Principal is net of prepayments. Cost is net of prepayments and accumulated unearned income.

(7)
Income producing through dividends or distributions.

(8)
Index based floating interest rate is subject to contractual minimum interest rates.

(9)
Middle Market portfolio investment.

(10)
Other Portfolio investment.

(11)
Investment is not a "qualifying asset" as defined under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets.

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

NOTE A—ORGANIZATION AND BASIS OF PRESENTATION

1.     Organization

        Main Street Capital Corporation ("MSCC") was formed on March 9, 2007 for the purpose of (i) acquiring 100% of the equity interests of Main Street Mezzanine Fund, LP ("MSMF") and its general partner, Main Street Mezzanine Management, LLC ("MSMF GP"), (ii) acquiring 100% of the equity interests of Main Street Capital Partners, LLC (the "Investment Manager"), (iii) raising capital in an initial public offering, which was completed in October 2007 (the "IPO"), and (iv) thereafter operating as an internally managed business development company ("BDC") under the Investment Company Act of 1940, as amended (the "1940 Act"). MSMF is licensed as a Small Business Investment Company ("SBIC") by the United States Small Business Administration ("SBA") and the Investment Manager acts as MSMF's manager and investment adviser. Because the Investment Manager, which employs all of the executive officers and other employees of MSCC, is wholly owned by MSCC, MSCC does not pay any external investment advisory fees but instead incurs the operating costs associated with employing investment and portfolio management professionals through the Investment Manager. The IPO and related transactions discussed above were consummated in October 2007 and are collectively termed the "Formation Transactions."

        On January 7, 2010, MSCC consummated transactions (the "Exchange Offer") to exchange 1,239,695 shares of its common stock for approximately 88% of the total dollar value of the limited partner interests in Main Street Capital II, LP ("MSC II" and, together with MSMF, the "Funds"). Pursuant to the terms of the Exchange Offer, 100% of the membership interests in the general partner of MSC II, Main Street Capital II GP, LLC ("MSC II GP"), were also transferred to MSCC for no consideration. MSC II commenced operations in January 2006, is an investment fund that operates as an SBIC and is also managed by the Investment Manager. During the first quarter of 2012, MSCC exchanged 229,634 shares of its common stock to acquire all of the remaining minority ownership in the total dollar value of the MSC II limited partnership interests, including approximately 5% owned by affiliates of MSCC (the "Final MSC II Exchange"). After the acquisition of these remaining MSC II equity interests, MSCC owns 100% of MSC II as of March 31, 2012. The Exchange Offer and related transactions, including the transfer of the MSC II GP interests and the Final MSC II Exchange, are collectively termed the "Exchange Offer Transactions."

        MSCC has elected to be treated for federal income tax purposes as a regulated investment company ("RIC") under Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"). As a result, MSCC generally will not pay corporate-level federal income taxes on any net ordinary income or capital gains that it distributes to its stockholders as dividends.

        MSCC has direct or indirect subsidiaries that have elected to be taxable entities (the "Taxable Subsidiaries"). The primary purpose of these entities is to hold certain investments that generate "pass through" income for tax purposes. The Taxable Subsidiaries are each taxed at their normal corporate tax rates based on their taxable income.

        Unless otherwise noted or the context otherwise indicates, the terms "we," "us," "our" and "Main Street" refer to MSCC and its subsidiaries, including the Funds and the Taxable Subsidiaries.

2.     Basis of Presentation

        Main Street's financial statements are prepared in accordance with generally accepted accounting principles in the United States of America ("U.S. GAAP"). For the three months ended March 31, 2012 and 2011, Main Street's consolidated financial statements include the accounts of MSCC and its

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE A—ORGANIZATION AND BASIS OF PRESENTATION (Continued)

consolidated subsidiaries, including the Funds. Portfolio investments, as used herein, refers to all of Main Street's investments in LMM portfolio companies, investments in Middle Market portfolio companies, Other Portfolio investments and the investment in the Investment Manager and excludes all "Marketable securities and idle funds investments" (see Note C for additional discussion of Main Street's portfolio investment composition and definitions for the defined terms LMM, Middle Market and Other Portfolio). The Investment Manager is accounted for as a portfolio investment (see Note D). "Marketable securities and idle funds investments" are classified as financial instruments and are reported separately on Main Street's Consolidated Balance Sheets and Consolidated Schedule of Investments due to the nature of such investments (see Note B.9). Main Street's results of operations for the three months ended March 31, 2012 and 2011, cash flows for the three months ended March 31, 2012 and 2011, and financial position as of March 31, 2012 and December 31, 2011, are presented on a consolidated basis. The effects of all intercompany transactions between Main Street and its consolidated subsidiaries have been eliminated in consolidation. Certain reclassifications have been made to prior period balances to conform with the current financial statement presentation, including certain investments previously classified as "Marketable securities and idle funds investments" that are now considered a part of the Middle Market portfolio and are now classified as "Non-Control/Non-Affiliate investments."

        The accompanying unaudited consolidated financial statements of Main Street are presented in conformity with U.S. GAAP for interim financial information and pursuant to the requirements for reporting on Form 10-Q and Article 10 of Regulation S-X. Accordingly, certain disclosures accompanying annual financial statements prepared in accordance with U.S. GAAP are omitted. In the opinion of management, the unaudited consolidated financial results included herein contain all adjustments, consisting solely of normal recurring accruals, considered necessary for the fair presentation of financial statements for the interim periods included herein. The results of operations for the three months ended March 31, 2012 are not necessarily indicative of the operating results to be expected for the full year. Also, the unaudited financial statements and notes should be read in conjunction with the audited financial statements and notes thereto for the year ended December 31, 2011. Financial statements prepared on a U.S. GAAP basis require management to make estimates and assumptions that affect the amounts and disclosures reported in the financial statements and accompanying notes. Such estimates and assumptions could change in the future as more information becomes known, which could impact the amounts reported and disclosed herein.

        Under the investment company rules and regulations pursuant to Article 6 of Regulation S-X and the Audit and Accounting Guide for Investment Companies issued by the American Institute of Certified Public Accountants (the "AICPA Guide"), Main Street is precluded from consolidating portfolio company investments, including those in which it has a controlling interest, unless the portfolio company is another investment company. An exception to this general principle in the AICPA Guide occurs if Main Street owns a controlled operating company that provides all or substantially all of its services directly to Main Street or to an investment company of Main Street. None of the investments made by Main Street qualify for this exception. Therefore, Main Street's portfolio investments are carried on the balance sheet at fair value, as discussed further in Note B, with any adjustments to fair value recognized as "Net Change in Unrealized Appreciation (Depreciation)" on the Statement of Operations until the investment is realized, usually upon exit, resulting in any gain or loss on exit being recognized as a "Net Realized Gain (Loss) from Investments."

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE A—ORGANIZATION AND BASIS OF PRESENTATION (Continued)

        Main Street classifies its portfolio investments in accordance with the requirements of the 1940 Act. Under the 1940 Act, (a) "Control Investments" are defined as investments in which Main Street owns more than 25% of the voting securities or has rights to maintain greater than 50% of the board representation, (b) "Affiliate Investments" are defined as investments in which Main Street owns between 5% and 25% of the voting securities and does not have rights to maintain greater than 50% of the board representation, and (c) Non-Control/Non-Affiliate Investments" are defined as investments that are neither Control Investments nor Affiliate Investments. The line item on Main Street's Consolidated Balance Sheets entitled "Investment in affiliated Investment Manager" represents Main Street's investment in a wholly owned investment manager subsidiary that is accounted for as a portfolio investment.

NOTE B—SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

1.     Valuation of Portfolio Investments

        Main Street accounts for its LMM portfolio investments, Middle Market portfolio investments, Other Portfolio investments and the investment in the Investment Manager at fair value. As a result, Main Street follows the provisions of the Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("Codification" or "ASC") 820, Fair Value Measurements and Disclosures ("ASC 820"). ASC 820 defines fair value, establishes a framework for measuring fair value, establishes a fair value hierarchy based on the quality of inputs used to measure fair value and enhances disclosure requirements for fair value measurements. ASC 820 requires Main Street to assume that the portfolio investment is to be sold in the principal market to independent market participants, which may be a hypothetical market. Market participants are defined as buyers and sellers in the principal market that are independent, knowledgeable, and willing and able to transact. With the adoption of this statement, Main Street incorporated the income approach to estimate the fair value of its LMM portfolio debt investments using a yield-to-maturity model.

        Main Street's portfolio strategy calls for it to invest primarily in illiquid securities issued by private, LMM companies as well as debt securities issued by Middle Market companies that are generally larger in size than the LMM companies. These portfolio investments may be subject to restrictions on resale. LMM companies generally have no established trading market while Middle Market securities generally have established markets that are not active. Main Street determines in good faith the fair value of its portfolio investments pursuant to a valuation policy in accordance with ASC 820 and a valuation process approved by its Board of Directors and in accordance with the 1940 Act. For LMM portfolio investments, Main Street reviews external events, including private mergers, sales and acquisitions involving comparable companies, and includes these events in the valuation process. For Middle Market portfolio investments, Main Street generally uses observable inputs such as quoted prices in the valuation process. Main Street's valuation policy and process are intended to provide a consistent basis for determining the fair value of the portfolio.

        For valuation purposes, "control" investments are composed of equity and debt securities for which Main Street has a controlling interest in the portfolio company or has the ability to nominate a majority of the portfolio company's board of directors. Market quotations are generally not readily available for Main Street's control investments. As a result, Main Street determines the fair value of control investments using a combination of market and income approaches. Under the market

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE B—SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

approach, Main Street will typically use the enterprise value methodology to determine the fair value of these investments. The enterprise value is the fair value at which an enterprise could be sold in a transaction between two willing parties, other than through a forced or liquidation sale. Typically, private companies are bought and sold based on multiples of earnings before interest, taxes, depreciation and amortization ("EBITDA"), cash flows, net income, revenues, or in limited cases, book value. There is no single methodology for estimating enterprise value. For any one portfolio company, enterprise value is generally described as a range of values from which a single estimate of enterprise value is derived. In estimating the enterprise value of a portfolio company, Main Street analyzes various factors, including the portfolio company's historical and projected financial results. Main Street allocates the enterprise value to investments in order of the legal priority of the investments. Main Street will also use the income approach to determine the fair value of these securities, based on projections of the discounted future free cash flows that the portfolio company or the debt security will likely generate. The valuation approaches for Main Street's control investments estimate the value of the investment if Main Street were to sell, or exit, the investment. In addition, these valuation approaches consider the value associated with Main Street's ability to control the capital structure of the portfolio company, as well as the timing of a potential exit.

        For valuation purposes, "non-control" LMM portfolio investments are composed of debt and equity securities for which Main Street does not have a controlling interest in the portfolio company, or the ability to nominate a majority of the portfolio company's board of directors. Market quotations for non-control LMM portfolio investments are generally not readily available. For non-control LMM portfolio investments, Main Street uses a combination of the market and income approaches to value its equity investments and the income approach to value its debt instruments. For non-control LMM debt investments, Main Street determines the fair value primarily using a yield approach that analyzes the discounted cash flows of interest and principal for the debt security, as set forth in the associated loan agreements, as well as the financial position and credit risk of each of these portfolio investments. Main Street's estimate of the expected repayment date of an LMM debt security is generally the legal maturity date of the instrument, as Main Street generally intends to hold its loans to maturity. The yield analysis considers changes in leverage levels, credit quality, portfolio company performance and other factors. Main Street will use the value determined by the yield analysis as the fair value for that security; however, because of Main Street's general intent to hold its loans to maturity, the fair value will not exceed the face amount of the LMM debt security. A change in the assumptions that Main Street uses to estimate the fair value of its LMM debt securities using the yield analysis could have a material impact on the determination of fair value. If there is deterioration in credit quality or an LMM debt security is in workout status, Main Street may consider other factors in determining the fair value of the LMM debt security, including the value attributable to the debt security from the enterprise value of the portfolio company or the proceeds that would be received in a liquidation analysis.

        Pursuant to its internal valuation process and the requirements under the 1940 Act, Main Street performs valuation procedures on each LMM portfolio company once a quarter. In addition to its internal valuation process, in arriving at estimates of fair value for portfolio companies, Main Street, among other things, consults with a nationally recognized independent advisor. The nationally recognized independent advisor is generally consulted relative to each LMM portfolio investment at least once in every calendar year, and for new LMM portfolio companies, at least once in the twelve-month period subsequent to the initial investment. In certain instances, Main Street may determine that

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE B—SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

it is not cost-effective, and as a result is not in its stockholders' best interest, to consult with the nationally recognized independent advisor on one or more LMM portfolio companies. Such instances include, but are not limited to, situations where the fair value of Main Street's investment in an LMM portfolio company is determined to be insignificant relative to the total investment portfolio. Main Street consulted with its independent advisor in arriving at Main Street's determination of fair value on a total of 12 LMM portfolio companies for the three months ended March 31, 2012, representing approximately 22% of the total LMM portfolio and investment in the affiliated Investment Manager at fair value as of March 31, 2012.

        For valuation purposes, all of Main Street's Middle Market portfolio investments are non-control investments and are composed of securities for which Main Street does not have a controlling interest in the portfolio company, or the ability to nominate a majority of the portfolio company's board of directors. Main Street primarily uses observable inputs to determine the fair value of these investments through obtaining third party quotes or other independent pricing.

        For valuation purposes, all of Main Street's Other Portfolio investments are non-control investments and are composed of securities for which Main Street generally does not have a controlling interest in the portfolio company, or the ability to nominate a majority of the portfolio company's board of directors. Similar to the LMM investment portfolio, market quotations for Other Portfolio investments are generally not readily available. Main Street values its Other Portfolio equity investments based on the fair value of the portfolio company as determined by independent third parties and based on Main Street's proportional ownership in the portfolio company, as well as the financial position and assessed risk of each of these portfolio investments. Main Street values its Other Portfolio debt investments based on the income approach and generally uses a yield approach that analyzes the discounted cash flows of interest and principal for the debt security, as set forth in the associated loan agreements, as well as the financial position and credit risk of each of these portfolio investments.

        Due to the inherent uncertainty in the valuation process, Main Street's determination of fair value may differ materially from the values that would have been used had a ready market for the securities existed. In addition, changes in the market environment, portfolio company performance and other events that may occur over the lives of the investments may cause the gains or losses ultimately realized on these investments to be materially different than the valuations currently assigned. Main Street determines the fair value of each individual investment and records changes in fair value as unrealized appreciation or depreciation.

        Main Street uses a standard internal portfolio investment rating system in connection with its investment oversight, portfolio management/analysis and investment valuation procedures for its LMM portfolio companies. This system takes into account both quantitative and qualitative factors of the LMM portfolio company and the investments held therein.

        The Board of Directors of Main Street has the final responsibility for reviewing and approving, in good faith, Main Street's determination of the fair value for its portfolio investments consistent with the 1940 Act requirements. Main Street believes its portfolio investments as of March 31, 2012 and December 31, 2011 approximate fair value as of those dates based on the market in which Main Street operates and other conditions in existence at those reporting periods.

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE B—SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

2.     Interest and Dividend Income

        Interest and dividend income is recorded on the accrual basis to the extent amounts are expected to be collected. Dividend income is recorded as dividends are declared or at the point an obligation exists for the portfolio company to make a distribution. In accordance with Main Street's valuation policy, accrued interest and dividend income is evaluated periodically for collectability. When a loan or debt security becomes 90 days or more past due, and if Main Street otherwise does not expect the debtor to be able to service all of its debt or other obligations, Main Street will generally place the loan or debt security on non-accrual status and cease recognizing interest income on that loan or debt security until the borrower has demonstrated the ability and intent to pay contractual amounts due. If a loan or debt security's status significantly improves regarding the debtor's ability to service the debt or other obligations, or if a loan or debt security is fully impaired, sold or written off, it will be removed from non-accrual status.

        Main Street holds debt and preferred equity instruments in its investment portfolio that contain payment-in-kind ("PIK") interest and cumulative dividend provisions. The PIK interest, computed at the contractual rate specified in each debt agreement, is periodically added to the principal balance of the debt and is recorded as interest income. Thus, the actual collection of this interest may be deferred until the time of debt principal repayment. Cumulative dividends are recorded as dividend income, and any dividends in arrears are added to the balance of the preferred equity investment. The actual collection of dividends in arrears may be deferred until such time as the preferred equity is redeemed. To maintain RIC tax treatment (as discussed below), these non-cash sources of income may need to be paid out to stockholders in the form of distributions, even though Main Street may not have collected the PIK interest and cumulative dividends in cash. For the three months ended March 31, 2012 and 2011, (i) approximately 3.9% and 4.5%, respectively, of our total investment income was attributable to PIK interest income and (ii) approximately 2.0% and 2.9%, respectively, of our total investment income was attributable to cumulative dividend income.

        As of March 31, 2012, Main Street had no investments with positive fair value on non-accrual status and two fully impaired investments which comprised approximately 0.9% of the total portfolio investments at cost, excluding the investment in the affiliated Investment Manager. As of December 31, 2011, Main Street had one investment with positive fair value on non-accrual status, which comprised less than 0.1% of the total portfolio investments at fair value and, together with another fully impaired investment, comprised approximately 0.9% of the total portfolio investments at cost, in each case excluding the investment in the affiliated Investment Manager.

3.     Fee Income—Structuring and Advisory Services

        Main Street may periodically provide services, including structuring and advisory services, to its portfolio companies. For services that are separately identifiable and evidence exists to substantiate fair value, income is recognized as earned, which is generally when the investment or other applicable transaction closes. Fees received in connection with debt financing transactions for services that do not meet these criteria are treated as debt origination fees and are accreted into interest income over the life of the financing.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE B—SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

4.     Unearned Income—Debt Origination Fees, Original Issue Discount and Discounts / Premiums to Par Value

        Main Street capitalizes upfront debt origination fees received in connection with financings and reflects such fees as unearned income netted against investments. The unearned income from the fees, net of direct debt origination costs, is accreted into interest income based on the effective interest method over the life of the financing.

        In connection with its portfolio debt investments, Main Street sometimes receives nominal cost warrants ("nominal cost equity") that are valued as part of the negotiation process with the particular portfolio company. When Main Street receives nominal cost equity, Main Street allocates its cost basis in its investment between its debt securities and its nominal cost equity at the time of origination. Any discount recorded on a debt investment resulting from this allocation is reflected as unearned income, which is netted against the debt investment, and accreted into interest income based on the effective interest method over the life of the debt. The actual collection of this interest may be deferred until the time of debt principal repayment.

        Main Street may also purchase debt securities at a discount or at a premium to the par value of the debt security. When Main Street purchases a debt security at a discount to the par value of the debt security, Main Street records the par value of the debt security net of the discount, and the discount is accreted into interest income based on the effective interest method over the life of the debt investment. When Main Street purchases a debt security at a premium to the par value of the debt security, Main Street records the premium as incremental to the par value of the debt security, and the premium is amortized as a reduction to interest income based on the effective interest method over the life of the debt. To maintain RIC tax treatment (as discussed below), these non-cash sources of income may need to be paid out to stockholders in the form of distributions, even though Main Street may not have collected the interest income.

5.     Share-Based Compensation

        Main Street accounts for its share-based compensation plans using the fair value method, as prescribed by ASC 718, Compensation—Stock Compensation. Accordingly, for restricted stock awards, Main Street measures the grant date fair value based upon the market price of its common stock on the date of the grant and amortizes that fair value to share-based compensation expense over the requisite service period or vesting term.

6.     Income Taxes

        MSCC has elected and intends to continue to qualify for the tax treatment applicable to a RIC under the Code, and, among other things, intends to make the required distributions to its stockholders as specified therein. In order to qualify as a RIC, MSCC is required to timely distribute to its stockholders at least 90% of investment company taxable income, as defined by the Code, each year. Depending on the level of taxable income earned in a tax year, MSCC may choose to carry forward taxable income in excess of current year distributions into the next tax year and pay a 4% excise tax on such income. Any such carryover taxable income must be distributed through a dividend declared prior to filing the final tax return related to the year which generated such taxable income.

        The Taxable Subsidiaries hold certain portfolio investments of Main Street. The Taxable Subsidiaries are consolidated for U.S. GAAP reporting purposes, and the portfolio investments held by

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE B—SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

them are included in the consolidated financial statements. The Taxable Subsidiaries permit Main Street to hold equity investments in portfolio companies which are "pass through" entities for tax purposes in order to comply with the "source income" requirements contained in the RIC tax provisions. The Taxable Subsidiaries are not consolidated with Main Street for income tax purposes and may generate income tax expense, or benefit, as a result of their ownership of certain portfolio investments. This income tax expense, or benefit, is reflected in the consolidated statement of operations.

        The Taxable Subsidiaries use the liability method in accounting for income taxes. Deferred tax assets and liabilities are recorded for temporary differences between the tax basis of assets and liabilities and their reported amounts in the financial statements, using statutory tax rates in effect for the year in which the temporary differences are expected to reverse. A valuation allowance is provided against deferred tax assets when it is more likely than not that some portion or all of the deferred tax asset will not be realized.

        Taxable income generally differs from net income for financial reporting purposes due to temporary and permanent differences in the recognition of income and expenses. Taxable income generally excludes net unrealized appreciation or depreciation, as investment gains or losses are not included in taxable income until they are realized.

7.     Net Realized Gains or Losses from Investments and Net Change in Unrealized Appreciation or Depreciation from Investments

        Realized gains or losses are measured by the difference between the net proceeds from the sale or redemption of an investment and the cost basis of the investment, without regard to unrealized appreciation or depreciation previously recognized, and includes investments written-off during the period net of recoveries and realized gains or losses from in-kind redemptions. Net change in unrealized appreciation or depreciation from investments reflects the net change in the valuation of the investment portfolio and financial instruments and the reclassification of any prior period unrealized appreciation or depreciation on exited investments.

8.     Concentration of Credit Risks

        Main Street places its cash in financial institutions, and, at times, such balances may be in excess of the federally insured limit.

9.     Fair Value of Financial Instruments

        Fair value estimates are made at discrete points in time based on relevant information. These estimates may be subjective in nature and involve uncertainties and matters of significant judgment and, therefore, cannot be determined with precision. Main Street believes that the carrying amounts of its financial instruments, consisting of cash and cash equivalents, marketable securities, receivables, accounts payable and accrued liabilities approximate the fair values of such items. Marketable securities and idle funds investments may include investments in certificates of deposit, U.S. government agency securities, independently rated debt investments, and diversified bond funds. The fair value determination for these investments under the provisions of ASC 820 generally consists of Level 2 observable inputs.

        The SBIC debentures provide a strategic advantage due to their flexible structure, long-term duration, and low fixed interest rates. As part of the Exchange Offer, Main Street elected the fair value

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE B—SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

option under ASC 825, Financial Instruments ("ASC 825") relating to accounting for debt obligations at their fair value, for those SBIC debentures acquired (the "Acquired Debentures") as part of the acquisition accounting related to the Exchange Offer. In order to provide for a more consistent basis of presentation, Main Street has elected and will continue to elect the fair value option for SBIC debentures issued by MSC II subsequent to the Exchange Offer. Once the fair value option is elected for a given SBIC debenture, the deferred loan costs associated with the debenture are fully expensed in the current period to "Net Change in Unrealized Appreciation (Depreciation)—SBIC debentures" as part of the fair value adjustment. Interest incurred in connection with SBIC debentures which are valued at fair value is expensed.

10.   Earnings per Share

        Basic and diluted per share calculations are computed utilizing the weighted average number of shares of common stock outstanding for the period. Main Street adopted the amended guidance in ASC 260, Earnings Per Share, and based on the guidance, determined that unvested shares of restricted stock are participating securities and should therefore be included in the basic earnings per share calculation. As a result, for all periods presented, there is no difference between diluted earnings per share and basic earnings per share amounts.

        As a result of the Exchange Offer which left a minority portion of MSC II's equity interests owned by certain non-Main Street entities, the net earnings attributable to the remaining externally owned noncontrolling interest in MSC II are excluded from all per share amounts presented, and the per share amounts only reflect the net earnings attributable to Main Street's ownership interest in MSC II. During the first quarter of 2012, MSCC completed the Final MSC II Exchange to acquire all of the minority portion of MSC II's equity interests not already owned by MSCC. For the three months ended March 31, 2012 and 2011, the following table provides a reconciliation of Net Investment Income and

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE B—SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

Net Realized Income excluding amounts related to the noncontrolling interest in MSC II that remained owned by non-Main Street entities for each period.

 
  Three Months Ended March 31,  
 
  2012   2011  
 
  (in thousands)
 

Net Investment Income

  $ 12,849   $ 7,392  

Noncontrolling interest share of Net Investment Income

    (62 )   (157 )
           

Net Investment Income attributable to common stock

    12,787     7,235  

Total net realized gain from investments

   
8,138
   
 

Noncontrolling interest share of net realized (gain) from investments

    (3 )    
           

Net Realized Income attributable to common stock

  $ 20,922   $ 7,235  
           

Net Investment Income per share—

             

Basic and diluted

  $ 0.48   $ 0.38  
           

Net Realized Income per share—

             

Basic and diluted

  $ 0.78   $ 0.38  
           

Weighted average shares outstanding—

             

Basic and diluted

    26,871,084     19,217,690  
           

11.   Recently Issued Accounting Standards

        In May 2011, the FASB issued Accounting Standards Update ("ASU") 2011-04, Fair Value Measurements (Topic 820), Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs ("ASU 2011-04"). ASU 2011-04 results in common fair value measurement and disclosure requirements in U.S. GAAP and IFRSs. ASU 2011-04 is effective for interim and annual reporting periods beginning after December 15, 2011. The adoption of ASU 2011-04 did not have a significant impact on Main Street's financial condition and results of operations.

        In February 2011, the FASB issued ASU 2011-02, Receivables (Topic 310): A Creditor's Determination of Whether a Restructuring is a Troubled Debt Restructuring ("ASU 2011-02"). ASU 2011-02 clarifies which loan modifications constitute troubled debt restructurings. It is intended to assist creditors in determining whether a modification of the terms of a receivable meets the criteria to be considered a troubled debt restructuring, both for purposes of recording an impairment loss and for disclosure of troubled debt restructurings. In evaluating whether a restructuring constitutes a troubled debt restructuring, a creditor must separately conclude that both of the following exist: (a) the restructuring constitutes a concession; and (b) the debtor is experiencing financial difficulties. ASU 2011-02 provides guidance to clarify whether the creditor has granted a concession and whether a debtor is experiencing financial difficulties. The new guidance is effective for interim and annual periods beginning on or after June 15, 2011, and applies retrospectively to restructurings occurring on or after the beginning of the fiscal year of adoption. The adoption of ASU 2011-02 did not have a significant impact on Main Street's financial condition and results of operations.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE C—FAIR VALUE HIERARCHY FOR INVESTMENTS AND DEBENTURES

        ASC 820 defines fair value, establishes a framework for measuring fair value, establishes a fair value hierarchy based on the quality of inputs used to measure fair value, and enhances disclosure requirements for fair value measurements. Main Street accounts for its investments at fair value.

Fair Value Hierarchy

        In accordance with ASC 820, Main Street has categorized its investments based on the priority of the inputs to the valuation technique, into a three-level fair value hierarchy. The fair value hierarchy gives the highest priority to quoted prices in active markets for identical investments (Level 1) and the lowest priority to unobservable inputs (Level 3).

        Investments recorded on Main Street's balance sheet are categorized based on the inputs to the valuation techniques as follows:

        As required by ASC 820, when the inputs used to measure fair value fall within different levels of the hierarchy, the level within which the fair value measurement is categorized is based on the lowest level input that is significant to the fair value measurement in its entirety. For example, a Level 3 fair value measurement may include inputs that are observable (Levels 1 and 2) and unobservable (Level 3). Therefore, gains and losses for such investments categorized within the Level 3 table below may include changes in fair value that are attributable to both observable inputs (Levels 1 and 2) and unobservable inputs (Level 3). Main Street conducts reviews of fair value hierarchy classifications on a

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE C—FAIR VALUE HIERARCHY FOR INVESTMENTS AND DEBENTURES (Continued)

quarterly basis. Changes in the observability of valuation inputs may result in a reclassification for certain investments.

        As of March 31, 2012 and December 31, 2011, Main Street's Middle Market portfolio investments and marketable securities and idle funds investments consisted primarily of investments in secured and unsecured debt investments and independently rated debt investments. The fair value determination for these investments primarily consisted of observable inputs in non-active markets. As a result, most of Main Street's Middle Market portfolio investments and marketable securities and idle funds investments were categorized as Level 2 as of March 31, 2012 and December 31, 2011.

        As of March 31, 2012 and December 31, 2011, all of Main Street's LMM portfolio and Other Portfolio investments consisted of illiquid securities issued by private companies. The fair value determination for these investments primarily consisted of unobservable inputs. As a result, all of Main Street's LMM portfolio and Other Portfolio investments were categorized as Level 3.

        The fair value determination of each LMM portfolio and Other Portfolio investment required one or more of the following unobservable inputs:

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE C—FAIR VALUE HIERARCHY FOR INVESTMENTS AND DEBENTURES (Continued)

        The significant unobservable inputs used in the fair value measurement of Main Street's LMM equity securities are (i) EBITDA multiples and (ii) the weighted average cost of capital ("WACC"). Significant increases (decreases) in EBITDA multiple inputs in isolation would result in a significantly higher (lower) fair value measurement. On the contrary, significant increases (decreases) in WACC inputs in isolation would result in a significantly lower (higher) fair value measurement. The significant unobservable inputs used in the fair value measurement of Main Street's LMM debt securities and Other Portfolio debt securities are (i) risk adjusted discount factors used in the yield valuation technique described above and (ii) loss severity adjustments used to estimate the percentage of expected principal recovery. Significant increases (decreases) in any of these yield valuation inputs in isolation would result in a significantly lower (higher) fair value measurement. However, due to the nature of certain investments, fair value measurements may be based on other criteria, such as third-party appraisals of collateral, and not presented in the table below.

        The following table provides a summary of the significant unobservable inputs used to fair value Main Street's Level 3 portfolio investments as of March 31, 2012:

Type of Investment
  Fair Value at
March 31, 2012
(in thousands)
  Valuation Technique   Significant Unobservable Inputs   Range   Weighted
Average
 

Equity investments

  $ 148,768   Discounted cash flow   Weighted average cost of capital     12.0% - 20.0 %   15.2 %

        Market comparable / Enterprise Value   EBITDA multiple     4.5x - 6.5x (1)   5.7x  

Debt investments

 
$

267,923
 

Discounted cash flow

 

Expected principal recovery

   
0.0% - 100.0

%
 
98.1

%

            Risk adjusted discount factor     7.1% - 19.8 %(1)   13.9 %

(1)
Range excludes outliers that are greater than one standard deviation from the mean.

        The following table provides a summary of changes in fair value of Main Street's Level 3 portfolio investments for the three months ended March 31, 2012 (amounts in thousands):

Type of Investment
  December 31,
2011
Fair Value
  Transfers
Into
Level 3
Hierarchy
  Accretion of
Unearned
Income
  Redemptions/
Repayments/
Exits(1)
  New
Investments(1)
  Net
Changes from
Unrealized
to Realized
  Net
Unrealized
Appreciation
(Depreciation)
  March 31,
2012
Fair Value
 

Debt

  $ 260,190   $ 11,450   $ 2,600   $ (29,190 ) $ 30,881   $   $ (1,944 ) $ 273,987  

Equity

    113,920             (13,877 )   1,775     (519 )   6,953     108,252  

Equity warrants

    43,269     235         (3,816 )       (6,644 )   1,206     34,250  

Investment Manager(2)

    1,869             (1,616 )           (51 )   202  
                                   

  $ 419,248   $ 11,685   $ 2,600   $ (48,499 ) $ 32,656   $ (7,163 ) $ 6,164   $ 416,691  
                                   

(1)
Includes the impact of non-cash conversions

(2)
Reflects the adjustment to the investment in the Investment Manager in connection with the acquisition of the remaining externally owned MSC II equity interests.

        As of March 31, 2012 and December 31, 2011, the fair value determination for the SBIC debentures recorded at fair value primarily consisted of unobservable inputs. As a result, the SBIC debentures which are recorded at fair value were categorized as Level 3. Main Street determines the fair value of these instruments primarily using a yield approach that analyzes the discounted cash flows of interest and principal for each SBIC debenture recorded at fair value based on estimated market

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE C—FAIR VALUE HIERARCHY FOR INVESTMENTS AND DEBENTURES (Continued)

interest rates for debt instruments of similar structure, terms, and maturity. Main Street's estimate of the expected repayment date of principal for each SBIC debenture recorded at fair value is the legal maturity date of the instrument, as Main Street generally does not intend to repay its SBIC debentures prior to maturity.

        The significant unobservable inputs used in the fair value measurement of Main Street's SBIC debentures recorded at fair value are the estimated market interest rates used to fair value each debenture using the yield valuation technique described above. Significant increases (decreases) in the yield valuation inputs in isolation would result in a significantly lower (higher) fair value measurement.

        The following table provides a summary of the significant unobservable inputs used to fair value Main Street's Level 3 SBIC debentures at fair value as of March 31, 2012:

 
  Fair Value at
March 31, 2012
(in thousands)
  Valuation Technique   Significant Unobservable Inputs   Range   Weighted
Average
 

SBIC Debentures

  $ 76,586   Discounted cash flow   Estimated market interest rates     9.1% - 10.0 %   9.5 %

        The following table provides a summary of changes for the Level 3 SBIC Debentures recorded at fair value for the three months ended March 31, 2012 (amounts in thousands):

Type of Instrument
  December 31, 2011
Fair Value
  Repayments   New SBIC
Debentures
  Net
Unrealized
(Appreciation)
Depreciation
  March 31, 2012
Fair Value
 

SBIC Debentures at fair value

  $ 76,887   $   $   $ (301 ) $ 76,586  
                       

        At March 31, 2012 and December 31, 2011, Main Street's investments and SBIC Debentures at fair value were categorized as follows in the fair value hierarchy for ASC 820 purposes:

 
   
  Fair Value Measurements  
 
   
  (in thousands)
 
At March 31, 2012
  Fair Value   Quoted Prices in
Active Markets for
Identical Assets
(Level 1)
  Significant Other
Observable Inputs
(Level 2)
  Significant
Unobservable
Inputs
(Level 3)
 

LMM portfolio investments

  $ 388,070   $   $   $ 388,070  

Middle Market portfolio investments

    250,972         246,121     4,851  

Other Portfolio investments

    25,055           1,487     23,568  

Investment in affiliated Investment Manager

    202             202  
                   

Total portfolio investments

    664,299         247,608     416,691  

Marketable securities and idle funds investments

   
14,345
   
   
14,345
   
 

Total investments

 
$

678,644
 
$

 
$

261,953
 
$

416,691
 
                   

SBIC Debentures at fair value

  $ 76,586   $   $   $ 76,586  
                   

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE C—FAIR VALUE HIERARCHY FOR INVESTMENTS AND DEBENTURES (Continued)

 

 
   
  Fair Value Measurements  
 
   
  (in thousands)
 
At December 31, 2011
  Fair Value   Quoted Prices in
Active Markets for
Identical Assets
(Level 1)
  Significant Other
Observable Inputs
(Level 2)
  Significant
Unobservable
Inputs
(Level 3)
 

LMM portfolio investments

  $ 415,664   $   $ 11,685   $ 403,979  

Middle Market portfolio investments

    226,451         226,451      

Other Portfolio investments

    14,109           709     13,400  

Investment in affiliated Investment Manager

    1,869             1,869  
                   

Total portfolio investments

    658,093         238,845     419,248  

Marketable securities and idle funds investments

   
26,242
   
   
26,242
   
 
                   

Total investments

  $ 684,335   $   $ 265,087   $ 419,248  
                   

        For the three months ended March 31, 2012, there was one portfolio company investment transfer from the Level 2 to the Level 3 fair value hierarchy, totaling $12.0 million at both fair value and cost as of March 31, 2012.

Portfolio Investment Composition

        Main Street's lower middle market ("LMM") portfolio investments principally consist of secured debt, equity warrants and direct equity investments in privately held, LMM companies based in the United States. Main Street's LMM portfolio companies generally have annual revenues between $10 million and $150 million and our LMM investments generally range in size from $5 million to $25 million. The LMM debt investments are typically secured by either a first or second lien on the assets of the portfolio company, primarily bear interest at fixed rates, and generally mature between five and seven years from the original investment date. In most LMM portfolio companies, Main Street usually receives nominally priced equity warrants and/or makes direct equity investments in connection with a debt investment.

        Main Street's middle market ("Middle Market") portfolio investments primarily consist of direct or secondary purchases of interest-bearing debt securities in companies based in the United States that are generally larger in size than the LMM companies included in Main Street's LMM portfolio. Main Street's Middle Market portfolio companies generally have annual revenues between $150 million and $1.5 billion. Main Street's Middle Market portfolio debt investments are generally secured by either a first or second priority lien on the assets of the company and have an expected duration of between three and five years.

        Main Street's other portfolio ("Other Portfolio") investments primarily consist of investments which are not consistent with the typical profiles for LMM and Middle Market portfolio investments, including investments which may be managed by third parties.

        Investment income, consisting of interest, dividends and fees, can fluctuate dramatically due to various factors, including the level of new investment activity, repayments of debt investments or sales

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(Unaudited)

NOTE C—FAIR VALUE HIERARCHY FOR INVESTMENTS AND DEBENTURES (Continued)

of equity interests. Investment income in any given year could be highly concentrated among several portfolio companies. For the three months ended March 31, 2012, Main Street recorded investment income from one LMM portfolio company in excess of 10% of total LMM investment income. Investment income from that LMM portfolio company represented approximately 10.4% of the total LMM investment income for the period. For the three months ended March 31, 2012, Main Street did not record investment income from any single Middle Market portfolio company in excess of 10% of total Middle Market investment income. For the three months ended March 31, 2011, Main Street did not record investment income from any single portfolio company in excess of 10% of total investment income.

        As of March 31, 2012, Main Street had debt and equity investments in 53 LMM portfolio companies with an aggregate fair value of $388.1 million, with a total cost basis of approximately $322.3 million, and a weighted average annual effective yield on its LMM debt investments of approximately 14.9%. Approximately 77% of Main Street's total LMM portfolio investments at cost were in the form of debt investments and 98% of such debt investments at cost were secured by first priority liens on the assets of Main Street's LMM portfolio companies as of March 31, 2012. At March 31, 2012, Main Street had equity ownership in approximately 92% of its LMM portfolio companies and the average fully diluted equity ownership in those portfolio companies was approximately 33%. As of December 31, 2011, Main Street had debt and equity investments in 54 LMM portfolio companies with an aggregate fair value of $415.7 million, with a total cost basis of approximately $349.0 million, and a weighted average annual effective yield on its LMM debt investments of approximately 14.8%. The weighted average annual yields were computed using the effective interest rates for all debt investments as of March 31, 2012 and December 31, 2011, including amortization of deferred debt origination fees and accretion of original issue discount but excluding liquidation fees payable upon repayment and any debt investments on non-accrual status.

        As of March 31, 2012, Main Street had Middle Market portfolio investments in 62 companies collectively totaling approximately $251.0 million in fair value with a total cost basis of approximately $249.8 million. The weighted average revenues for the 62 Middle Market portfolio company investments were approximately $476 million. Main Street's Middle Market portfolio investments are primarily in the form of debt investments and 86% of such debt investments at cost were secured by first priority liens on portfolio company assets as of March 31, 2012. The weighted average annual effective yield on Main Street's Middle Market portfolio debt investments was approximately 9.2% as of March 31, 2012. As of December 31, 2011, Main Street had Middle Market portfolio investments in 57 companies collectively totaling approximately $226.5 million in fair value with a total cost basis of approximately $228.9 million. The weighted average revenues for the 57 Middle Market portfolio company investments were approximately $473 million. The weighted average annual effective yield on Main Street's Middle Market portfolio debt investments was approximately 9.5% as of December 31, 2011. The weighted average annual yields were computed using the effective interest rates for all debt investments as of March 31, 2012 and December 31, 2011, including amortization of deferred debt origination fees and accretion of original issue discount but excluding liquidation fees payable upon repayment.

        As of March 31, 2012, Main Street had Other Portfolio investments in 4 companies collectively totaling approximately $25.1 million in both fair value and cost basis. As of December 31, 2011, Main

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(Unaudited)

NOTE C—FAIR VALUE HIERARCHY FOR INVESTMENTS AND DEBENTURES (Continued)

Street had Other Portfolio investments in 3 companies collectively totaling approximately $14.1 million in both fair value and cost basis.

        Summaries of the composition of Main Street's LMM investment portfolio, Middle Market investment portfolio, and total combined LMM and Middle Market investment portfolio at cost and fair value by type of investment as a percentage of the total LMM investment portfolio, the total Middle Market investment portfolio, and the total combined LMM and Middle Market investment portfolio are shown in the following table (this information excludes the Other Portfolio investments):

 
  March 31, 2012   December 31, 2011  
Cost:
  LMM   Middle
Market
  Total   LMM   Middle
Market
  Total  

First lien debt

    76.0 %   85.3 %   80.1 %   69.5 %   81.8 %   74.4 %

Equity

    18.2 %   0.3 %   10.4 %   20.5 %   0.2 %   12.5 %

Second lien debt

    1.2 %   14.4 %   7.0 %   5.0 %   18.0 %   10.1 %

Equity warrants

    4.6 %   0.0 %   2.5 %   5.0 %   0.0 %   3.0 %
                           

    100.0 %   100.0 %   100.0 %   100.0 %   100.0 %   100.0 %
                           

 

 
  March 31, 2012   December 31, 2011  
Fair Value:
  LMM   Middle
Market
  Total   LMM   Middle
Market
  Total  

First lien debt

    62.2 %   85.4 %   71.4 %   57.7 %   81.7 %   66.2 %

Equity

    29.3 %   0.2 %   17.9 %   29.0 %   0.3 %   18.8 %

Second lien debt

    1.0 %   14.4 %   6.2 %   4.4 %   18.0 %   9.2 %

Equity warrants

    7.5 %   0.0 %   4.5 %   8.9 %   0.0 %   5.8 %
                           

    100.0 %   100.0 %   100.0 %   100.0 %   100.0 %   100.0 %
                           

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE C—FAIR VALUE HIERARCHY FOR INVESTMENTS AND DEBENTURES (Continued)

        The following table shows the LMM investment portfolio, Middle Market investment portfolio, and total combined LMM and Middle Market investment portfolio composition by geographic region of the United States at cost and fair value as a percentage of the total LMM investment portfolio, the total Middle Market investment portfolio, and the total combined LMM and Middle Market investment portfolio (this information excludes the Other Portfolio investments). The geographic composition is determined by the location of the corporate headquarters of the portfolio company.

 
  March 31, 2012   December 31, 2011  
Cost:
  LMM   Middle
Market
  Total   LMM   Middle
Market
  Total  

Southwest

    43.4 %   15.4 %   31.1 %   47.8 %   16.4 %   35.4 %

West

    35.2 %   9.5 %   24.0 %   31.9 %   13.7 %   24.7 %

Northeast

    3.2 %   40.0 %   19.3 %   3.9 %   32.6 %   15.2 %

Midwest

    9.9 %   23.8 %   16.0 %   9.0 %   21.6 %   14.0 %

Southeast

    8.3 %   11.3 %   9.6 %   7.4 %   15.7 %   10.7 %
                           

    100.0 %   100.0 %   100.0 %   100.0 %   100.0 %   100.0 %
                           

 

 
  March 31, 2012   December 31, 2011  
Fair Value:
  LMM   Middle
Market
  Total   LMM   Middle
Market
  Total  

Southwest

    47.1 %   15.2 %   34.6 %   52.1 %   16.2 %   39.3 %

West

    32.6 %   9.5 %   23.5 %   28.9 %   13.8 %   23.6 %

Northeast

    3.5 %   39.9 %   17.8 %   3.9 %   32.4 %   14.0 %

Midwest

    9.7 %   24.1 %   15.3 %   8.7 %   21.9 %   13.4 %

Southeast

    7.1 %   11.3 %   8.8 %   6.4 %   15.7 %   9.7 %
                           

    100.0 %   100.0 %   100.0 %   100.0 %   100.0 %   100.0 %
                           

        Main Street's LMM and Middle Market portfolio investments are in companies conducting business in a variety of industries. Set forth below are tables showing the composition of Main Street's LMM portfolio investments, Middle Market portfolio investments, and total combined LMM and

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE C—FAIR VALUE HIERARCHY FOR INVESTMENTS AND DEBENTURES (Continued)

Middle Market portfolio investments by industry at cost and fair value as of March 31, 2012 and December 31, 2011 (this information excludes the Other Portfolio investments):

 
  March 31, 2012   December 31, 2011  
Cost:
  LMM   Middle
Market
  Total   LMM   Middle
Market
  Total  

Energy Equipment and Services

    10.5 %   8.2 %   9.4 %   9.2 %   7.5 %   8.5 %

Health Care Providers and Services

    7.0 %   11.8 %   9.1 %   6.5 %   9.1 %   7.5 %

Media

    9.4 %   6.0 %   7.9 %   8.7 %   6.6 %   7.9 %

Machinery

    10.6 %   3.1 %   7.3 %   9.9 %   2.1 %   6.9 %

Commercial Services and Supplies

    11.7 %   0.0 %   6.6 %   15.4 %   0.9 %   9.7 %

Software

    3.0 %   10.3 %   6.2 %   2.8 %   8.4 %   5.0 %

Specialty Retail

    5.9 %   5.1 %   5.5 %   5.3 %   5.6 %   5.4 %

Construction and Engineering

    5.8 %   3.5 %   5.0 %   5.3 %   0.0 %   5.0 %

Diversified Consumer Services

    4.8 %   0.0 %   2.7 %   2.7 %   0.0 %   1.6 %

Hotels, Restaurants and Leisure

    2.2 %   2.8 %   2.5 %   2.1 %   7.2 %   4.1 %

Food and Staples Retailing

    0.0 %   5.7 %   2.5 %   0.0 %   6.2 %   2.5 %

Chemicals

    0.0 %   5.4 %   2.4 %   0.0 %   3.8 %   1.5 %

Electronic Equipment, Instruments and Components

    4.1 %   0.0 %   2.3 %   4.6 %   0.0 %   2.8 %

Construction Materials

    1.3 %   4.1 %   2.3 %   1.1 %   4.4 %   0.7 %

Professional Services

    3.8 %   0.0 %   2.2 %   3.5 %   0.0 %   2.1 %

Consumer Finance

    3.2 %   0.8 %   2.2 %   3.0 %   0.9 %   2.1 %

Insurance

    3.3 %   0.0 %   1.9 %   3.1 %   2.6 %   2.9 %

IT Services

    0.0 %   4.4 %   1.9 %   0.0 %   4.1 %   1.6 %

Building Products

    2.9 %   0.0 %   1.6 %   2.6 %   0.0 %   1.6 %

Food Products

    0.0 %   3.6 %   1.6 %   0.0 %   3.9 %   1.6 %

Internet Software and Services

    0.4 %   3.0 %   1.5 %   3.0 %   0.0 %   1.8 %

Metals and Mining

    0.0 %   3.5 %   1.5 %   0.0 %   0.0 %   0.0 %

Paper and Forest Products

    2.6 %   0.0 %   1.4 %   2.2 %   0.0 %   1.3 %

Health Care Equipment and Supplies

    2.4 %   0.0 %   1.4 %   2.2 %   1.2 %   1.8 %

Transportation Infrastructure

    2.2 %   0.0 %   1.3 %   2.0 %   0.0 %   1.2 %

Pharmaceuticals

    0.0 %   2.4 %   1.0 %   0.0 %   2.6 %   1.0 %

Real Estate Management and Development

    0.0 %   2.3 %   1.0 %   0.0 %   2.5 %   1.0 %

Internet and Catalog Retail

    0.0 %   2.1 %   0.9 %   0.0 %   2.2 %   0.9 %

Biotechnology

    0.0 %   2.0 %   0.9 %   0.0 %   2.2 %   0.8 %

Auto Components

    0.0 %   1.5 %   0.7 %   0.0 %   2.9 %   1.2 %

Electric Utilities

    0.0 %   0.9 %   0.4 %   0.0 %   2.0 %   0.8 %

Thrifts and Mortgage Finance

    0.0 %   0.0 %   0.0 %   0.0 %   2.0 %   0.8 %

Other(1)

    2.9 %   7.5 %   4.9 %   4.8 %   9.1 %   6.4 %
                           

    100.0 %   100.0 %   100.0 %   100.0 %   100.0 %   100.0 %
                           

(1)
Includes various industries with each industry individually less than 2.0% of the total LMM portfolio, total Middle Market portfolio and combined total LMM and Middle Market portfolio in each period.

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE C—FAIR VALUE HIERARCHY FOR INVESTMENTS AND DEBENTURES (Continued)

 
  March 31, 2012   December 31, 2011  
Fair Value:
  LMM   Middle
Market
  Total   LMM   Middle
Market
  Total  

Energy Equipment and Services

    12.9 %   8.4 %   11.2 %   11.2 %   7.5 %   9.8 %

Health Care Providers and Services

    8.0 %   11.7 %   9.5 %   7.4 %   9.0 %   7.9 %

Machinery

    12.0 %   3.2 %   8.6 %   10.7 %   2.2 %   7.7 %

Media

    7.9 %   6.0 %   7.2 %   7.4 %   6.5 %   7.1 %

Commercial Services and Supplies

    10.3 %   0.0 %   6.3 %   13.5 %   0.9 %   9.0 %

Software

    3.0 %   10.5 %   5.9 %   2.8 %   8.4 %   4.8 %

Construction and Engineering

    6.7 %   3.5 %   5.7 %   6.0 %   0.0 %   5.5 %

Specialty Retail

    4.1 %   4.7 %   4.3 %   3.8 %   5.2 %   4.3 %

Diversified Consumer Services

    5.7 %   0.0 %   3.5 %   3.7 %   0.0 %   2.4 %

Hotels, Restaurants and Leisure

    2.6 %   2.8 %   2.7 %   2.5 %   7.2 %   4.2 %

Food and Staples Retailing

    0.0 %   5.6 %   2.2 %   0.0 %   6.3 %   2.2 %

Chemicals

    0.0 %   5.5 %   2.1 %   0.0 %   3.8 %   1.3 %

Electronic Equipment, Instruments and Components

    3.3 %   0.0 %   2.0 %   3.7 %   0.0 %   2.4 %

Internet Software and Services

    1.3 %   3.0 %   2.0 %   5.8 %   0.0 %   3.7 %

Construction Materials

    1.0 %   4.1 %   2.0 %   0.8 %   4.5 %   0.5 %

Consumer Finance

    2.7 %   0.8 %   1.9 %   2.5 %   0.9 %   1.9 %

Trading Companies and Distributors

    2.9 %   0.0 %   1.8 %   2.6 %   0.0 %   1.7 %

Insurance

    2.8 %   0.0 %   1.7 %   2.6 %   2.6 %   2.6 %

IT Services

    0.0 %   4.1 %   1.6 %   0.0 %   3.8 %   1.4 %

Professional Services

    2.3 %   0.0 %   1.4 %   2.2 %   0.0 %   1.4 %

Paper and Forest Products

    2.4 %   0.0 %   1.4 %   2.2 %   0.0 %   1.4 %

Food Products

    0.0 %   3.6 %   1.4 %   0.0 %   4.0 %   1.4 %

Metals and Mining

    0.0 %   3.6 %   1.4 %   0.0 %   0.0 %   0.0 %

Transportation Infrastructure

    2.2 %   0.0 %   1.3 %   2.0 %   0.0 %   1.3 %

Health Care Equipment and Supplies

    2.0 %   0.0 %   1.2 %   1.9 %   1.2 %   1.6 %

Pharmaceuticals

    0.0 %   2.5 %   1.0 %   0.0 %   2.8 %   1.0 %

Real Estate Management and Development

    0.0 %   2.3 %   0.9 %   0.0 %   2.6 %   0.9 %

Internet and Catalog Retail

    0.0 %   2.1 %   0.8 %   0.0 %   2.2 %   0.8 %

Biotechnology

    0.0 %   1.9 %   0.8 %   0.0 %   2.1 %   0.7 %

Auto Components

    0.0 %   1.6 %   0.6 %   0.0 %   3.0 %   1.1 %

Electric Utilities

    0.0 %   0.9 %   0.3 %   0.0 %   2.0 %   0.7 %

Thrifts and Mortgage Finance

    0.0 %   0.0 %   0.0 %   0.0 %   2.1 %   0.7 %

Other(1)

    3.9 %   7.6 %   5.3 %   4.7 %   9.2 %   6.6 %
                           

    100.0 %   100.0 %   100.0 %   100.0 %   100.0 %   100.0 %
                           

(1)
Includes various industries with each industry individually less than 2.0% of the total LMM portfolio, total Middle Market portfolio and combined total LMM and Middle Market portfolio in each period.

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE C—FAIR VALUE HIERARCHY FOR INVESTMENTS AND DEBENTURES (Continued)

        At March 31, 2012 and December 31, 2011, Main Street had no LMM investments that were greater than 10% of its total LMM investment portfolio at fair value, no Middle Market investments that were greater than 10% of its total Middle Market investment portfolio at fair value and no portfolio investments that were greater than 10% of the total investment portfolio at fair value.

NOTE D—WHOLLY OWNED INVESTMENT MANAGER

        As part of the Formation Transactions, the Investment Manager became a wholly owned subsidiary of MSCC. However, the Investment Manager is accounted for as a portfolio investment since the Investment Manager is not an investment company and since it conducts a significant portion of its investment management activities for parties outside of MSCC and its consolidated subsidiaries. The Investment Manager receives recurring investment management fees from MSC II pursuant to a separate investment advisory agreement. The payments due under the investment advisory agreement were fixed at $3.3 million per year, paid quarterly, until September 30, 2010. Subsequent to September 30, 2010, under the investment advisory agreement, MSC II is obligated to pay a 2% annualized management fee based upon the MSC II assets under management. Subsequent to the Exchange Offer, the investment in the Investment Manager was reduced to reflect the remaining pro rata portion of the MSC II equity and the related portion of the MSC II management fees that were not acquired in the Exchange Offer. Upon completion of the Final MSC II Exchange in the first quarter of 2012, the investment in the Investment Manager was reduced to reflect MSCC's acquisition of all of the MSC II equity and the related MSC II management fees. The Investment Manager also receives certain management, consulting and advisory fees for providing these services to third parties (the "External Services"). The portfolio investment in the Investment Manager is accounted for using fair value accounting, with the fair value determined by Main Street and approved, in good faith, by Main Street's Board of Directors, based on the same valuation methodologies applied to determine the original valuation. The valuation for the Investment Manager is based on the total estimated present value of the net cash flows received for the External Services, over the estimated dollar averaged life of the related investment management, advisory or consulting contract, and is also based on comparable public market transactions. The net cash flows utilized in the valuation of the Investment Manager exclude any revenues and expenses from MSCC and its subsidiaries, but include the revenues attributable to External Services, and are reduced by an estimated allocation of costs related to providing such External Services. Any change in fair value of the investment in the Investment Manager is recognized on Main Street's statement of operations as "Unrealized appreciation (depreciation) in Investment in affiliated Investment Manager," with a corresponding increase (in the case of appreciation) or decrease (in the case of depreciation) to "Investment in affiliated Investment Manager" on Main Street's balance sheet. As part of the Exchange Offer Transactions, the investment in the Investment Manager was reduced by $15.3 million and such reduction was recorded against "Additional paid-in capital" as an adjustment to the original valuation recorded as part of the Formation Transactions. Main Street believes that the valuation for the Investment Manager will generally decrease over the life of the investment management, advisory and consulting contracts attributable to third parties, absent obtaining additional recurring cash flows from performing External Services for other external investment entities or other third parties.

        The Investment Manager has elected, for tax purposes, to be treated as a taxable entity and is taxed at normal corporate tax rates based on its taxable income. The taxable income of the Investment

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE D—WHOLLY OWNED INVESTMENT MANAGER (Continued)

Manager may differ from its book income due to temporary book and tax timing differences, as well as permanent differences. The Investment Manager provides for any current taxes payable and deferred tax items in its separate financial statements.

        MSCC has a support services agreement with the Investment Manager that is structured to provide reimbursement to the Investment Manager for any personnel, administrative and other costs it incurs in conducting its operational and investment management activities in excess of the fees received for providing management advisory services. As a wholly owned subsidiary of MSCC, the Investment Manager manages the day-to-day operational and investment activities of MSCC and its subsidiaries. The Investment Manager pays personnel and other administrative expenses, except those specifically required to be borne by MSCC which principally include direct costs that are specific to MSCC's status as a publicly traded entity. The expenses paid by the Investment Manager include the cost of salaries and related benefits, rent, equipment and other administrative costs required for day-to-day operations.

        Pursuant to the support services agreement with MSCC, the Investment Manager is reimbursed by MSCC for its excess operating expenses associated with providing investment management and other services to MSCC and its subsidiaries, as well as third parties. Each quarter, as part of the support services agreement, MSCC makes payments to cover all cash operating expenses incurred by the Investment Manager, less fees that the Investment Manager receives pursuant to third party long-term investment advisory agreements and consulting agreements. Subsequent to the consolidation of MSC II in connection with the Exchange Offer, the management fees paid by MSC II to the Investment Manager are now included in "Expenses reimbursed to affiliated Investment Manager" on the statements of operations along with any additional net costs reimbursed by MSCC to the Investment Manager pursuant to the support services agreement. For the three months ended March 31, 2012 and 2011, the expenses reimbursed by MSCC and management fees paid by MSC II to the Investment Manager totaled $2.7 million and $2.1 million, respectively.

        In its separate stand-alone financial statements as summarized below, as part of the Formation Transactions the Investment Manager recognized an $18 million intangible asset related to the investment advisory agreement with MSC II consistent with Staff Accounting Bulletin No. 54, Application of "Pushdown" Basis of Accounting in Financial Statements of Subsidiaries Acquired by Purchase ("SAB 54"). Under SAB 54, push-down accounting is required in "purchase transactions that result in an entity becoming substantially wholly owned." In this case, MSCC acquired 100% of the equity interests in the Investment Manager in the Formation Transactions. Because the $18 million value attributed to MSCC's investment in the Investment Manager was derived from the long-term, recurring management fees under the investment advisory agreement with MSC II, the same methodology used to determine the $18 million valuation of the Investment Manager in connection with the Formation Transactions was utilized to establish the push-down accounting basis for the intangible asset. The intangible asset is being amortized over the estimated economic life of the investment advisory agreement with MSC II. For the three months ended March 31, 2012 and 2011, the Investment Manager recognized $0.3 million of amortization expense in each respective period associated with the intangible asset. Amortization expense is not included in the expenses reimbursed by MSCC to the Investment Manager based upon the support services agreement since it is non-cash and non-operating in nature.

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE D—WHOLLY OWNED INVESTMENT MANAGER (Continued)

        Summarized financial information from the separate financial statements of the Investment Manager is as follows:

 
  As of
March 31,
2012
  As of
December 31,
2011
 
 
  (in thousands)
 
 
  (Unaudited)
 

Cash

  $ 151   $ 99  

Accounts receivable

    42     28  

Accounts receivable—MSCC

    1,520     4,831  

Intangible asset (net of accumulated amortization of $4,704 and $4,392 as of March 31, 2012 and December 31, 2011, respectively)

    13,296     13,608  

Deposits and other

    148     145  
           

Total assets

  $ 15,157   $ 18,711  
           

Accounts payable and accrued liabilities

  $ 2,006   $ 5,248  

Equity

    13,151     13,463  
           

Total liabilities and equity

  $ 15,157   $ 18,711  
           

 

 
  Three Months
Ended March 31,
 
 
  2012   2011  
 
  (in thousands)
 
 
  (Unaudited)
 

Management fee income from Main Street Capital II

  $ 618   $ 510  

Other management advisory fees

    56     45  
           

Total income

    674     555  

Salaries, benefits and other personnel costs

   
(2,291

)
 
(1,802

)

Occupancy expense

    (82 )   (81 )

Professional expenses

    (10 )   (66 )

Amortization expense—intangible asset

    (312 )   (286 )

Other expenses

    (329 )   (226 )

Expense reimbursement from MSCC

    2,038     1,620  
           

Total net expenses

    (986 )   (841 )
           

Net Loss

  $ (312 ) $ (286 )
           

NOTE E—SBIC DEBENTURES

        SBIC debentures payable at March 31, 2012 and December 31, 2011 were $220 million. SBIC debentures provide for interest to be paid semi-annually, with principal due at the applicable 10-year maturity date of each debenture. The weighted average annual interest rate as of March 31, 2012 and December 31, 2011 was 5.1% at both dates. The first principal maturity due under the existing SBIC

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE E—SBIC DEBENTURES (Continued)

debentures is in 2013, and the remaining weighted average duration as of March 31, 2012 is approximately 6.4 years. For the three months ended March 31, 2012, Main Street recognized $2.9 million in interest expense attributable to the SBIC debentures. In accordance with SBA regulations, the Funds are precluded from incurring additional non-SBIC debt without the prior approval of the SBA. The Funds are subject to annual compliance examinations by the SBA. There have been no historical findings resulting from these examinations.

        As of March 31, 2012, the recorded value of the SBIC debentures was $201.6 million which consisted of (i) $76.6 million recorded at fair value, or $18.4 million less than the $95.0 million face value of the SBIC debentures held in MSC II, and (ii) $125 million reported at face value and held in MSMF. As of March 31, 2012, if Main Street had adopted the fair value option under ASC 825 for all of its SBIC debentures, Main Street estimates the fair value of its SBIC debentures would be approximately $178.9 million, or $41.1 million less than the $220 million face value of the SBIC debentures.

NOTE F—CREDIT FACILITY

        In December 2011, Main Street expanded its credit facility (the "Credit Facility") from $210 million to $235 million to provide additional liquidity in support of future investment and operational activities. The $25 million increase in total commitments included the addition of one new lender relationship which further diversified the lending group to a total of eight participants. The recent increase in total commitments was executed under the accordion feature of the Credit Facility which allows Main Street to increase the total commitments under the facility up to $300 million of total commitments from new or existing lenders on the same terms and conditions as the existing commitments. Borrowings under the Credit Facility bear interest, subject to Main Street's election, on a per annum basis equal to (i) the applicable LIBOR rate plus 2.50% or (ii) the applicable base rate plus 1.50%. Main Street pays unused commitment fees of 0.375% per annum on the unused lender commitments under the Credit Facility. The Credit Facility is secured by a first lien on the assets of MSCC and its subsidiaries, excluding the assets of the Funds. The Credit Facility contains certain affirmative and negative covenants, including but not limited to: (i) maintaining an interest coverage ratio of at least 2.0 to 1.0, (ii) maintaining an asset coverage ratio of at least 2.5 to 1.0, and (iii) maintaining a minimum tangible net worth. The Credit Facility will mature in September 2014. At March 31, 2012, Main Street had $138.0 million in borrowings outstanding under the Credit Facility. For the three months ended March 31, 2012, Main Street recognized $1.0 million in interest expense related to the Credit Facility, including unused commitment fees and amortization of deferred loan costs. As of March 31, 2012, the interest rate on the Credit Facility was 2.8%, and Main Street was in compliance with all financial covenants of the Credit Facility.

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE G—FINANCIAL HIGHLIGHTS

 
  Three Months Ended March 31,  
Per Share Data:
  2012   2011  

Net asset value at beginning of period

  $ 15.19   $ 13.06  

Net investment income(1)(3)

   
0.48
   
0.38
 

Net realized gain (loss) from investments(1)(2)(3)

    0.30      

Net change in unrealized appreciation(1)(2)(3)

    0.18     0.22  

Income tax provision(1)(2)(3)

    (0.07 )   (0.06 )
           

Net increase in net assets resulting from operations(1)

    0.89     0.54  

Dividends paid to stockholders

    (0.41 )   (0.38 )

Impact of the net change in monthly dividends declared prior to the end of the period

        (0.13 )

Accretive effect of public stock offerings (issuing shares above NAV per share)

        0.76  

Accretive effect of DRIP issuance (issuing shares above NAV per share)

    0.03     0.03  

Other(4)

    0.02     0.02  
           

Net asset value at March 31

  $ 15.72   $ 13.90  
           

Market value at March 31

  $ 24.63   $ 18.45  

Shares outstanding at March 31

    27,061,484     22,947,566  

(1)
Based on weighted average number of common shares outstanding for the period.

(2)
Net realized gains or losses, net change in unrealized appreciation or depreciation, and income taxes can fluctuate significantly from period to period.

(3)
Per share amounts are net of the earnings attributable to MSC II noncontrolling interest.

(4)
Includes the impact of the different share amounts as a result of calculating certain per share data based on the weighted average basic shares outstanding during the period and certain per share data based on the shares outstanding as of a period end or transaction date.

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE G—FINANCIAL HIGHLIGHTS (Continued)

 
  Three Months Ended
March 31,
 
 
  2012   2011  
 
  (in thousands, except
percentages)

 

Net asset value at end of period

  $ 425,536   $ 319,012  

Average net asset value

  $ 415,623   $ 282,273  

Average outstanding debt

  $ 334,750   $ 241,489  

Ratio of total expenses, including income tax expense, to average net asset value(1)(2)(5)

    2.31 %   2.41 %

Ratio of operating expenses to average net asset value(1)(5)

    1.85 %   2.05 %

Ratio of operating expenses, excluding interest expense, to average net asset value(1)(5)

    0.93 %   1.07 %

Ratio of net investment income to average net asset value(1)(5)

    3.09 %   2.56 %

Portfolio turnover ratio(5)

    14.73 %   4.40 %

Total investment return(4)(5)

    17.86 %   3.42 %

Total return based on change in net asset value(3)(5)

    5.86 %   4.20 %

(1)
Ratios are net of amounts attributable to MSC II noncontrolling interest.

(2)
Total expenses are the sum of operating expenses and income tax expense. Income tax expense primarily relates to the accrual of deferred taxes on the net unrealized appreciation from portfolio investments held in Taxable Subsidiaries, which is non-cash in nature and may vary significantly from period to period. Main Street is required to include deferred taxes in calculating its total expenses even though these deferred taxes are not currently payable.

(3)
Total return based on change in net asset value was calculated using the sum of ending net asset value plus dividends to stockholders and other non-operating changes during the period, as divided by the beginning net asset value.

(4)
Total investment return based on purchase of stock at the current market price on the first day and a sale at the current market price on the last day of each period reported on the table and assumes reinvestment of dividends at prices obtained by the registrant's dividend reinvestment plan during the period. The return does not reflect sales load.

(5)
Not annualized.

NOTE H—DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME

        Main Street paid monthly dividends of $0.135 per share for each month of January 2012 through March 2012, totaling $10.9 million, or $0.405 per share, for the three month period. During March 2012, Main Street declared and accrued a $0.140 per share monthly dividend that was paid in April 2012. For the three months ended March 31, 2011, Main Street paid total monthly dividends of approximately $7.1 million, or $0.375 per share, for the period.

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE H—DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME (Continued)

        The determination of the tax attributes for Main Street's distributions is made annually, based upon its taxable income for the full year and distributions paid for the full year. Therefore, a determination made on an interim basis may not be representative of the actual tax attributes of distributions for a full year. Ordinary dividend distributions from a RIC do not qualify for the 15% maximum tax rate on dividend income from domestic corporations and qualified foreign corporations, except to the extent that the RIC received the income in the form of qualifying dividends from domestic corporations and qualified foreign corporations. The tax attributes for dividends will generally include both ordinary income and capital gains but may also include qualified dividends or return of capital.

        MSCC has elected to be treated for federal income tax purposes as a RIC. As a RIC, MSCC generally will not pay corporate-level federal income taxes on any net ordinary income or capital gains that MSCC distributes to its stockholders as dividends. MSCC must generally distribute at least 90% of its investment company taxable income to qualify for pass-through tax treatment and maintain its RIC status. As part of maintaining RIC status, undistributed taxable income (subject to a 4% excise tax) pertaining to a given fiscal year may be distributed up to 12 months subsequent to the end of that fiscal year, provided such dividends are declared prior to the filing of the federal income tax return for the prior year.

        The Taxable Subsidiaries hold certain portfolio investments for Main Street. The Taxable Subsidiaries are consolidated with Main Street for financial reporting purposes, and the portfolio investments held by the Taxable Subsidiaries are included in Main Street's consolidated financial statements. The principal purpose of the Taxable Subsidiaries is to permit Main Street to hold equity investments in portfolio companies which are "pass through" entities for tax purposes in order to comply with the "source income" requirements contained in the RIC tax provisions of the Code. The Taxable Subsidiaries are not consolidated with Main Street for income tax purposes and may generate income tax expense or income tax benefit as a result of their ownership of various portfolio investments. This income tax expense or benefit, if any, is reflected in Main Street's Consolidated Statement of Operations. For the three months ended March 31, 2012, Main Street recognized an income tax provision of $1.8 million primarily consisting of deferred tax expense related to net unrealized appreciation on certain portfolio investments held by the Taxable Subsidiaries and an accrual for excise taxes on estimated undistributed taxable income as of March 31, 2012.

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE H—DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME (Continued)

        Listed below is a reconciliation of "Net increase in net assets resulting from operations" to taxable income and to total distributions declared to common stockholders for the three months ended March 31, 2012 and 2011.

 
  Three Months Ended
March 31,
 
 
  2012   2011  
 
  (amounts in thousands)
 
 
  (estimated)
 

Net increase in net assets resulting from operations

  $ 23,839   $ 10,323  

Share-based compensation expense

    581     443  

Net realized income allocated to noncontrolling interest

    (65 )   (157 )

Net change in unrealized appreciation on investments

    (4,728 )   (4,131 )

Income tax provision

    1,876     1,200  

Pre-tax book (income) loss not consolidated for tax purposes

    4,035     135  

Book income and tax income differences, including debt origination, structuring fees, dividends, and realized gains

    1,351     3,932  
           

Estimated taxable income

    26,889     11,745  

Taxable income earned in prior year and carried forward for distribution in current year

    7,934      

Ordinary taxable income earned in current period and carried forward for distribution

    (27,571 )   (4,680 )

Dividend accrued as of March 31 and paid in April

    3,789     2,983  
           

Total distributions accrued or paid to common stockholders

  $ 11,041   $ 10,048  
           

        The net deferred tax liability at March 31, 2012 and December 31, 2011 was $4.8 million and $3.8 million, respectively, and primarily related to timing differences from net unrealized appreciation of portfolio investments held by the Taxable Subsidiaries, partially offset by net loss carryforwards primarily resulting from historical realized losses on portfolio investments held by the Taxable Subsidiaries and basis differences of portfolio investments held by the Taxable Subsidiaries which are "pass through" entities for tax purposes.

NOTE I—COMMON STOCK

        In October 2011, Main Street completed a public stock offering of 3,450,000 shares of common stock, including the underwriters' full exercise of the over-allotment option, at a price to the public of $17.50 per share, resulting in total gross proceeds of approximately $60.4 million, less (i) underwriters' commissions of approximately $2.7 million and (ii) offering costs of approximately $0.2 million.

        In March 2011, Main Street completed a public stock offering of 4,025,000 shares of common stock, including the underwriters' full exercise of the over-allotment option, at a price to the public of $18.35 per share, resulting in total gross proceeds of approximately $73.8 million, less (i) underwriters' commissions of approximately $3.3 million and (ii) offering costs of approximately $0.2 million.

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE J—DIVIDEND REINVESTMENT PLAN ("DRIP")

        Main Street's DRIP provides for the reinvestment of dividends on behalf of its stockholders, unless a stockholder has elected to receive dividends in cash. As a result, if Main Street declares a cash dividend, the company's stockholders who have not "opted out" of the DRIP by the dividend record date will have their cash dividend automatically reinvested into additional shares of MSCC common stock. Main Street has the option to satisfy the share requirements of the DRIP through the issuance of shares of common stock or through open market purchases of common stock by the DRIP plan administrator. Newly issued shares will be valued based upon the final closing price of MSCC's common stock on the valuation date determined for each dividend by Main Street's Board of Directors. Shares purchased in the open market to satisfy the DRIP requirements will be valued based upon the average price of the applicable shares purchased by the DRIP plan administrator, before any associated brokerage or other costs. Main Street's DRIP is administered by its transfer agent on behalf of Main Street's record holders and participating brokerage firms. Brokerage firms and other financial intermediaries may decide not to participate in Main Street's DRIP but may provide a similar dividend reinvestment plan.

        For the three months ended March 31, 2012, $2.7 million of the total $10.9 million in dividends paid to stockholders represented DRIP participation. During this period, Main Street satisfied the DRIP participation requirements with the issuance of 117,466 newly issued shares. For the three months ended March 31, 2011, $2.4 million of the total $7.1 million in dividends paid to stockholders represented DRIP participation. During this period, Main Street satisfied the DRIP participation requirements with the issuance of 125,122 newly issued shares. The shares disclosed above relate only to Main Street's DRIP and exclude any activity related to broker-managed dividend reinvestment plans.

NOTE K—SHARE-BASED COMPENSATION

        Main Street accounts for its share-based compensation plans using the fair value method, as prescribed by ASC 718, Compensation—Stock Compensation. Accordingly, for restricted stock awards, Main Street measured the grant date fair value based upon the market price of its common stock on the date of the grant and will amortize this fair value to share-based compensation expense over the requisite service period or vesting term.

        Main Street's Board of Directors approves the issuance of shares of restricted stock to Main Street employees pursuant to the Main Street Capital Corporation 2008 Equity Incentive Plan. These shares vest over a four-year period from the grant date. The fair value is expensed over the four-year service period starting on the grant date. The following table summarizes the restricted stock issuances

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE K—SHARE-BASED COMPENSATION (Continued)

approved by Main Street's Board of Directors and the remaining shares of restricted stock available for issuance as of March 31, 2012.

Restricted stock authorized under the plan

    2,000,000  

Less restricted stock granted on:

       

July 1, 2008

    (245,645 )

July 1, 2009

    (99,312 )

July 1, 2010

    (149,357 )

June 20, 2011

    (117,728 )
       

Restricted stock available for issuance as of March 31, 2012

    1,387,958  
       

        The following table summarizes the restricted stock issued to Main Street's independent directors pursuant to the Main Street Capital Corporation 2008 Non-Employee Director Restricted Stock Plan. These shares vest on the day immediately preceding the annual meeting of stockholders following the respective grant date and are expensed over a one-year service period starting on the grant date.

Restricted stock authorized under the plan

    200,000  

Less restricted stock granted on:

       

July 1, 2008

    (20,000 )

July 1, 2009

    (8,512 )

July 1, 2010

    (7,920 )

June 20, 2011

    (6,584 )

August 3, 2011

    (1,658 )
       

Restricted stock available for issuance as of March 31, 2012

    155,326  
       

        For the three months ended March 31, 2012 and 2011, Main Street recognized total share-based compensation expense of $0.6 million and $0.4 million, respectively, related to the restricted stock issued to Main Street employees and independent directors.

        As of March 31, 2012, there was $3.7 million of total unrecognized compensation expense related to Main Street's non-vested restricted shares. This compensation expense is expected to be recognized over a remaining weighted-average period of approximately 2.5 years as of March 31, 2012.

NOTE L—COMMITMENTS

        At March 31, 2012, Main Street had a total of $26.0 million in outstanding commitments comprised of (i) five commitments to fund revolving loans that had not been fully drawn and (ii) two capital commitments that had not been fully called.

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

(Unaudited)

NOTE M—SUPPLEMENTAL CASH FLOW DISCLOSURES

        Listed below are the supplemental cash flow disclosures for the three months ended March 31, 2012 and 2011:

 
  Three Months
Ended March 31,
 
 
  2012   2011  
 
  (in thousands)
 

Interest paid

  $ 6,293   $ 5,089  

Taxes paid

  $ 284   $ 79  

Non-cash financing activities:

             

Shares issued pursuant to the DRIP

  $ 2,701   $ 2,409  

NOTE N—RELATED PARTY TRANSACTIONS

        As discussed further in Note D, subsequent to the completion of the Formation Transactions, the Investment Manager is a wholly owned portfolio company of MSCC. At March 31, 2012 and December 31, 2011, the Investment Manager had a receivable of $1.5 million and $4.8 million respectively due from MSCC related to operating expenses incurred by the Investment Manager required to support Main Street's business.

NOTE O—SUBSEQUENT EVENTS

        During May 2012, Main Street expanded the Credit Facility from $235 million to $277.5 million. The $42.5 million increase in total commitments included commitment increases by three lenders currently participating in the Credit Facility. The amended Credit Facility contains an accordion feature that allows for a further increase in total commitments under the facility up to $350 million of total commitments from new and existing lenders on the same terms and conditions as the existing commitments. The increase in total commitments provides Main Street access to additional financing capacity in support of its future investment and operational activities.

        During May 2012, Main Street declared monthly dividends of $0.145 per share for each of July, August and September 2012. These monthly dividends equal a total of $0.435 per share for the third quarter of 2012. The third quarter 2012 dividends represent an 11.5% increase from the dividends declared for the third quarter 2011 and a 3.6% increase compared to the second quarter of 2012. Including the dividends declared for the third quarter of 2012, Main Street will have paid $7.58 per share in cumulative dividends since its October 2007 initial public offering.

        During April 2012, Main Street completed a LMM portfolio investment in Bridge Capital Solutions Corporation ("Bridge Capital"). The investment consists of $5.0 million in first lien, senior secured debt with equity warrant participation. Headquartered on Long Island in Hauppauge, New York, Bridge Capital is a financial services firm that provides accelerated cash flow solutions to small businesses. The proceeds of Main Street's investment were used to refinance certain debt obligations of Bridge Capital and to provide additional liquidity to finance certain growth initiatives and for general working capital purposes.

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Report of Independent Registered Public Accounting Firm

Board of Directors and Stockholders' of
Main Street Capital Corporation

        We have audited the accompanying consolidated balance sheets of Main Street Capital Corporation (a Maryland corporation), including the consolidated schedule of investments, as of December 31, 2011 and 2010 and the related consolidated statements of operations, changes in net assets and cash flows for each of three years in the period ended December 31, 2011 and the financial highlights (see Note H) for each of the five years in the period ended December 31, 2011. These financial statements and financial highlights are the responsibility of the Company's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits.

        We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. Our procedures included verification by confirmation of securities as of December 31, 2011 and 2010, or by other appropriate auditing procedures where replies were not received. We believe that our audits provide a reasonable basis for our opinion.

        In our opinion, the consolidated financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of Main Street Capital Corporation as of December 31, 2011 and 2010 and the results of their operations, their changes in net assets and their cash flows for each of the three years in the period ended December 31, 2011, and the financial highlights for each of the five years in the period ended December 31, 2011, in conformity with accounting principles generally accepted in the United States of America.

        We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), Main Street Capital Corporation's internal control over financial reporting as of December 31, 2011, based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO), and our report dated March 9, 2012, expressed an unqualified opinion on the effectiveness of the Company's internal control over financial reporting.

/s/ GRANT THORNTON LLP

Houston, Texas
March 9, 2012

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MAIN STREET CAPITAL CORPORATION

Consolidated Balance Sheets

 
  December 31,
2011
  December 31,
2010
 

ASSETS

 

Portfolio investments at fair value:

             

Control investments (cost: $206,786,888 and $161,009,443 as of December 31, 2011 and 2010, respectively)

  $ 238,923,711   $ 174,596,394  

Affiliate investments (cost: $110,157,180 and $65,650,789 as of December 31, 2011 and 2010, respectively)

    146,404,681     80,206,804  

Non-Control/Non-Affiliate investments (cost: $178,858,890 and $91,911,304 as of December 31, 2011 and 2010, respectively)

    176,681,819     91,956,221  

Investment in affiliated Investment Manager (cost: $4,284,042 as of December 31, 2011 and 2010)

    1,869,242     2,051,655  
           

Total portfolio investments (cost: $500,087,000 and $322,855,578 as of December 31, 2011 and 2010, respectively)

    563,879,453     348,811,074  

Marketable securities and idle funds investments (cost: $122,136,830 and $67,970,907 as of December 31, 2011 and 2010, respectively)

    120,455,599     68,752,858  
           

Total investments (cost: $622,223,830 and $390,826,485 as of December 31, 2011 and 2010, respectively)

    684,335,052     417,563,932  

Cash and cash equivalents

    42,650,081     22,334,340  

Deferred tax asset, net

        1,958,593  

Interest receivable and other assets

    6,538,683     4,523,792  

Deferred financing costs (net of accumulated amortization of $2,166,815 and $1,504,584 as of December 31, 2011 and 2010, respectively)

    4,168,015     2,543,645  
           

Total assets

  $ 737,691,831   $ 448,924,302  
           

LIABILITIES

 

SBIC debentures (par: $220,000,000 and $180,000,000 as of December 31, 2011 and 2010, respectively; par of $95,000,000 is recorded at a fair value of $76,886,928 and $70,557,975 as of December 31, 2011 and 2010, respectively)

  $ 201,886,928   $ 155,557,975  

Credit facility

    107,000,000     39,000,000  

Interest payable

    3,984,014     3,194,870  

Dividend payable

    2,856,457      

Deferred tax liability, net

    3,776,320      

Payable to affiliated Investment Manager

    4,830,750     15,124  

Accounts payable and other liabilities

    2,169,245     1,173,295  
           

Total liabilities

    326,503,714     198,941,264  

Commitments and contingencies

             

NET ASSETS

             

Common stock, $0.01 par value per share (150,000,000 shares authorized; 26,714,384 and 18,797,444 issued and outstanding as of December 31, 2011 and 2010, respectively)

    267,144     187,975  

Additional paid-in capital

    360,163,711     224,485,165  

Accumulated net investment income, net of dividends

    12,531,357     9,261,405  

Accumulated net realized loss from investments, net of dividends

    (20,445,129 )   (20,541,897 )

Net unrealized appreciation, net of income taxes

    53,193,626     32,141,997  
           

Total Net Asset Value

    405,710,709     245,534,645  

Noncontrolling interest

    5,477,408     4,448,393  
           

Total net assets including noncontrolling interests

    411,188,117     249,983,038  
           

Total liabilities and net assets

  $ 737,691,831   $ 448,924,302  
           

NET ASSET VALUE PER SHARE

  $ 15.19   $ 13.06  
           

   

The accompanying notes are an integral part of these financial statements

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MAIN STREET CAPITAL CORPORATION

Consolidated Statements of Operations

 
  Years Ended December 31,  
 
  2011   2010   2009  

INVESTMENT INCOME:

                   

Interest, fee and dividend income:

                   

Control investments

  $ 25,051,361   $ 17,526,766   $ 8,022,687  

Affiliate investments

    12,558,835     8,250,622     4,581,295  

Non-Control/Non-Affiliate investments

    18,420,306     7,747,739     1,678,962  
               

Total interest, fee and dividend income

    56,030,502     33,525,127     14,282,944  

Interest from marketable securities, idle funds and other

    10,209,508     2,982,780     1,719,303  
               

Total investment income

    66,240,010     36,507,907     16,002,247  

EXPENSES:

                   

Interest

    (13,518,204 )   (9,058,386 )   (3,790,702 )

General and administrative

    (2,482,689 )   (1,437,027 )   (1,351,451 )

Expenses reimbursed to affiliated Investment Manager

    (8,914,974 )   (5,263,133 )   (569,868 )

Share-based compensation

    (2,047,039 )   (1,488,709 )   (1,068,397 )
               

Total expenses

    (26,962,906 )   (17,247,255 )   (6,780,418 )
               

NET INVESTMENT INCOME

    39,277,104     19,260,652     9,221,829  

NET REALIZED GAIN (LOSS) FROM INVESTMENTS:

                   

Control investments

    407,168     (3,587,638 )   (3,441,483 )

Affiliate investments

    758,424         (5,055,796 )

Non-Control/Non-Affiliate investments

    771,460     235     70,628  

Marketable securities and idle funds investments

    701,407     707,740     629,103  
               

Total net realized gain (loss) from investments

    2,638,459     (2,879,663 )   (7,797,548 )
               

NET REALIZED INCOME

    41,915,563     16,380,989     1,424,281  

NET CHANGE IN UNREALIZED APPRECIATION (DEPRECIATION):

                   

Portfolio investments

    37,453,083     12,264,717     9,051,986  

Marketable securities and idle funds investments

    (2,463,188 )   781,951     (171,091 )

SBIC debentures

    (6,328,953 )   6,861,971      

Investment in affiliated Investment Manager

    (182,413 )   (269,225 )   (638,788 )
               

Total net change in unrealized appreciation

    28,478,529     19,639,414     8,242,107  
               

Income tax benefit (provision)

    (6,287,662 )   (940,634 )   2,289,841  

Bargain purchase gain

        4,890,582      
               

NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS

    64,106,430     39,970,351     11,956,229  

Noncontrolling interest

    (1,139,238 )   (1,226,487 )    
               

NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS ATTRIBUTABLE TO COMMON STOCK

  $ 62,967,192   $ 38,743,864   $ 11,956,229  
               

NET INVESTMENT INCOME PER SHARE—BASIC AND DILUTED

  $ 1.69   $ 1.16   $ 0.92  
               

NET REALIZED INCOME PER SHARE—BASIC AND DILUTED

  $ 1.80   $ 0.99   $ 0.14  
               

NET INCREASE IN NET ASSETS
RESULTING FROM OPERATIONS ATTRIBUTABLE TO COMMON STOCK PER SHARE—BASIC AND DILUTED

  $ 2.76   $ 2.38   $ 1.19  
               

DIVIDENDS PAID PER SHARE

  $ 1.56   $ 1.50   $ 1.50  
               

WEIGHTED AVERAGE SHARES OUTSTANDING—BASIC AND DILUTED

    22,850,299     16,292,846     10,042,639  
               

   

The accompanying notes are an integral part of these financial statements

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MAIN STREET CAPITAL CORPORATION

Consolidated Statements of Changes in Net Assets

 
  Common Stock    
   
  Accumulated
Net Realized
Loss From
Investments,
Net of Dividends
  Net Unrealized
Appreciation from
Investments,
Net of Income
Taxes
   
   
  Total Net
Assets
Including
Noncontrolling
Interest
 
 
   
  Accumulated
Net Investment
Income, Net
of Dividends
   
   
 
 
  Number of
Shares
  Par
Value
  Additional
Paid-In
Capital
  Total Net
Asset Value
  Noncontrolling
Interest
 

Balances at December 31, 2008

    9,206,483   $ 92,065   $ 104,467,740   $ 10,155,593   $ (6,497,098 ) $ 4,137,756   $ 112,356,056   $   $ 112,356,056  

Public offering of common stock, net of offering costs

    1,437,500     14,375     16,176,533                 16,190,908         16,190,908  

Share-based compensation

            1,068,397                 1,068,397         1,068,397  

Dividend reinvestment

    271,906     2,719     3,690,001                 3,692,720         3,692,720  

Share repurchase program

    (164,544 )   (1,645 )   (1,615,461 )               (1,617,106 )       (1,617,106 )

Issuance of restricted stock

    107,505     1,075     (1,075 )                        

Purchase of vested stock for employee payroll tax withholding

    (16,403 )   (164 )   (251,979 )               (252,143 )       (252,143 )

Distributions to noncontrolling interest

                                     

Dividends to stockholders

                (12,107,556 )   (1,627,374 )       (13,734,930 )       (13,734,930 )

Net increase resulting from operations

                9,221,829     (7,797,548 )   10,531,948     11,956,229         11,956,229  
                                       

Balances at December 31, 2009

    10,842,447   $ 108,425   $ 123,534,156   $ 7,269,866   $ (15,922,020 ) $ 14,669,704   $ 129,660,131   $   $ 129,660,131  
                                       

MSC II exchange offer and related transactions

    1,246,803     12,468     20,080,623     4,890,582             24,983,673     3,237,210     28,220,883  

Public offering of common stock, net of offering costs

    6,095,000     60,950     85,836,250                 85,897,200         85,897,200  

Share-based compensation

            1,488,709                 1,488,709         1,488,709  

Dividend reinvestment

    478,731     4,787     7,632,303                 7,637,090         7,637,090  

Issuance of restricted stock

    157,277     1,573     (1,573 )                        

Purchase of vested stock for employee payroll tax withholding

    (22,814 )   (228 )   (369,345 )               (369,573 )       (369,573 )

Adjustment to investment in Investment Manager related to the MSC II Exchange Offer

            (13,715,958 )               (13,715,958 )       (13,715,958 )

Distributions to noncontrolling interest

                                (15,304 )   (15,304 )

Dividends to stockholders

                (22,159,695 )   (1,740,214 )       (23,899,909 )       (23,899,909 )

Net increase resulting from operations

                19,260,652     (2,879,663 )   18,698,780     35,079,769         35,079,769  

Noncontrolling interest

                        (1,226,487 )   (1,226,487 )   1,226,487      
                                       

Balances at December 31, 2010

    18,797,444   $ 187,975   $ 224,485,165   $ 9,261,405   $ (20,541,897 ) $ 32,141,997   $ 245,534,645   $ 4,448,393   $ 249,983,038  
                                       

Public offering of common stock, net of offering costs

    7,475,000     74,750     127,698,963                 127,773,713         127,773,713  

Share-based compensation

            2,047,039                 2,047,039         2,047,039  

Purchase of vested stock for employee payroll tax withholding

    (32,725 )   (327 )   (674,498 )               (674,825 )         (674,825 )

Dividend reinvestment

    348,695     3,486     6,608,302                 6,611,788         6,611,788  

Issuance of restricted stock

    125,970     1,260     (1,260 )                        

Distributions to noncontrolling interest

                                (110,223 )   (110,223 )

Dividends to stockholders

                (36,007,152 )   (2,541,691 )       (38,548,843 )       (38,548,843 )

Net increase resulting from operations

                39,277,104     2,638,459     22,190,867     64,106,430         64,106,430  

Noncontrolling interest

                        (1,139,238 )   (1,139,238 )   1,139,238      
                                       

Balances at December 31, 2011

    26,714,384   $ 267,144   $ 360,163,711   $ 12,531,357   $ (20,445,129 ) $ 53,193,626   $ 405,710,709   $ 5,477,408   $ 411,188,117  
                                       

   

The accompanying notes are an integral part of these financial statements

F-69


Table of Contents


MAIN STREET CAPITAL CORPORATION

Consolidated Statements of Cash Flows

 
  Years Ended December 31,  
 
  2011   2010   2009  

CASH FLOWS FROM OPERATING ACTIVITIES

                   

Net increase in net assets resulting from operations

  $ 64,106,430   $ 39,970,351   $ 11,956,229  

Adjustments to reconcile net increase in net assets resulting from operations to net cash provided by operating activities:

                   

Net change in unrealized appreciation

    (28,478,529 )   (19,639,414 )   (8,242,107 )

Net realized (gain) loss from investments

    (2,638,459 )   2,879,663     7,797,548  

Bargain purchase gain

        (4,890,582 )    

Accretion of unearned income

    (6,841,805 )   (2,790,394 )   (701,956 )

Net payment-in-kind interest accrual

    (3,645,431 )   (2,589,029 )   (655,762 )

Share-based compensation expense

    2,047,039     1,488,709     1,068,397  

Amortization of deferred financing costs

    662,231     470,012     414,545  

Deferred taxes

    5,734,913     674,980     (1,594,719 )

Changes in other assets and liabilities:

                   

Interest receivable and other assets

    (2,489,081 )   (1,961,515 )   (359,312 )

Interest payable

    789,144     782,624     (39,045 )

Payable to affiliated Investment Manager

    4,815,626     (202,298 )   (85,212 )

Accounts payable and other liabilities

    995,950     343,024     (935,595 )

Deferred fees and other

    2,097,990     2,068,179     (578,404 )
               

Net cash provided by operating activities

    37,156,018     16,604,310     8,044,607  

CASH FLOWS FROM INVESTING ACTIVITIES

                   

Investments in portfolio companies

    (249,434,471 )   (157,689,915 )   (24,741,598 )

Principal payments received on loans and debt securities in portfolio companies

    80,846,843     39,815,482     11,121,773  

Proceeds from sale of equity investments and related notes in portfolio companies

    2,131,217     3,175,283      

Cash acquired in MSC II exchange offer

        2,489,920      

Investments in marketable securities and idle funds investments

    (142,924,801 )   (100,563,154 )   (85,855,676 )

Proceeds from marketable securities and idle funds investments

    88,919,469     36,754,208     73,513,104  
               

Net cash used in investing activities

    (220,461,743 )   (176,018,176 )   (25,962,397 )

CASH FLOWS FROM FINANCING ACTIVITIES

                   

Share repurchase program

            (1,617,106 )

Proceeds from public offering of common stock, net of offering costs

    127,773,713     85,897,200     16,190,908  

Distributions to noncontrolling interest

    (110,223 )   (15,304 )    

Dividends paid to stockholders

    (28,330,598 )   (16,262,819 )   (11,167,882 )

Net change in DRIP deposit

    (750,000 )       400,000  

Proceeds from issuance of SBIC debentures

    40,000,000     45,000,000     10,000,000  

Proceeds from credit facility

    220,000,000     75,650,000      

Repayments on credit facility

    (152,000,000 )   (36,650,000 )    

Purchase of vested stock for employee payroll tax withholding

    (674,825 )   (369,573 )   (252,143 )

Payment of deferred loan costs and SBIC debenture fees

    (2,286,601 )   (2,121,296 )   (390,815 )
               

Net cash provided by financing activities

    203,621,466     151,128,208     13,162,962  
               

Net increase (decrease) in cash and cash equivalents

    20,315,741     (8,285,658 )   (4,754,828 )

CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD

    22,334,340     30,619,998     35,374,826  
               

CASH AND CASH EQUIVALENTS AT END OF PERIOD

  $ 42,650,081   $ 22,334,340   $ 30,619,998  
               

   

The accompanying notes are an integral part of these financial statements

F-70


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS

December 31, 2011

Portfolio Company/Type of Investment(1)(2)
 
Industry
  Principal(6)   Cost(6)   Fair Value  

Control Investments(3)

                       

Café Brazil, LLC

  Casual Restaurant Group                    

12% Secured Debt (Maturity—April 20, 2013)

        1,400,000     1,398,919     1,400,000  

Member Units (Fully diluted 41.0%)(7)

              41,837     3,430,000  
                     

              1,440,756     4,830,000  

California Healthcare Medical Billing, Inc.

 

Healthcare Services

                   

12% Secured Debt (Maturity—October 17, 2015)                

        8,623,000     8,291,024     8,530,339  

Warrants (Fully diluted 21.0%)

              1,193,333     3,380,333  

Common Stock (Fully diluted 9.6%)

              1,176,667     1,560,000  
                     

              10,661,024     13,470,672  

CBT Nuggets, LLC

 

Produces and Sells

                   

14% Secured Debt (Maturity—December 31,

  IT Training Certification                    

2013)

  Videos     1,750,000     1,750,000     1,750,000  

Member Units (Fully diluted 40.8%)(7)

              1,299,520     5,570,000  
                     

              3,049,520     7,320,000  

Ceres Management, LLC (Lambs)

 

Aftermarket Automotive

                   

14% Secured Debt (Maturity—May 31, 2013)

  Services Chain     3,770,000     3,749,034     3,749,034  

9.5% Secured Debt (Lamb's Real Estate Investment I, LLC) (Maturity—October 1, 2025)

        1,114,583     1,114,583     1,114,583  

Member Units (Fully diluted 79.0%)

              4,773,000     1,049,662  

Member Units (Lamb's Real Estate Investment I, LLC) (Fully diluted 100%)

              625,000     800,000  
                     

              10,261,617     6,713,279  

Condit Exhibits, LLC

 

Tradeshow Exhibits/

                   

9% Current / 9% PIK Secured Debt (Maturity—July 1, 2013)

  Custom Displays     4,430,948     4,405,514     4,405,514  

Warrants (Fully diluted 47.9%)

              320,000     560,000  
                     

              4,725,514     4,965,514  

Currie Acquisitions, LLC

 

Retail Electric Bikes

                   

12% Secured Debt (Maturity—March 1, 2015)                

        4,750,000     4,112,458     4,750,000  

Warrants (Fully diluted 47.3%)

              2,566,204     100,000  
                     

              6,678,662     4,850,000  

Gulf Manufacturing, LLC

 

Industrial Metal

                   

9% PIK Secured Debt (Maturity—June 30, 2017)

  Fabrication     1,185,131     1,185,131     1,185,131  

Member Units (Fully diluted 34.2%)(7)

              2,979,813     9,840,000  
                     

              4,164,944     11,025,131  

Harrison Hydra-Gen, Ltd.

 

Manufacturer of

                   

12% Secured Debt (Maturity—June 4, 2015)

  Hydraulic Generators     5,507,375     4,938,487     5,230,000  

Preferred stock (8% cumulative)(7)

              1,081,110     1,081,110  

Warrants (Fully diluted 34.5%)

              717,640     2,240,000  
                     

              6,737,237     8,551,110  

F-71


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2011

Portfolio Company/Type of Investment(1)(2)
 
Industry
  Principal(6)   Cost(6)   Fair Value  

Hawthorne Customs & Dispatch Services, LLC

 

Transportation/Logistics

                   

Member Units (Fully diluted 47.6%)(7)

              589,398     1,410,000  

Member Units (Wallisville Real Estate, LLC) (Fully diluted 59.1%)(7)

              1,214,784     1,214,784  
                     

              1,804,182     2,624,784  

Hydratec, Inc.

 

Agricultural Services

                   

Common Stock (Fully diluted 92.5%)(7)

              7,091,911     12,336,911  
                     

Indianapolis Aviation Partners, LLC

 

Fixed Base Operator

                   

12% Secured Debt (Maturity—September 15, 2014)

        4,270,000     4,003,131     4,120,000  

Warrants (Fully diluted 30.1%)

              1,129,286     1,650,286  
                     

              5,132,417     5,770,286  

Jensen Jewelers of Idaho, LLC

 

Retail Jewelry

                   

Prime Plus 2%, Current Coupon 5.25%, Secured Debt (Maturity—November 14, 2013)(8)                

        2,260,000     2,260,000     2,260,000  

13% Current / 6% PIK Secured Debt (Maturity—November 14, 2013)

        2,344,898     2,344,898     2,344,898  

Member Units (Fully diluted 60.8%)(7)

              811,000     1,750,000  
                     

              5,415,898     6,354,898  

Lighting Unlimited, LLC

 

Commercial and Residential

                   

8% Secured Debt (Maturity—August 22,

  Lighting Products and                    

2012)

  Design Services     2,000,000     1,984,047     1,984,047  

Preferred Stock (non-voting)

              510,098     510,098  

Warrants (Fully diluted 7.1%)

              54,000      

Common Stock (Fully diluted 70.0%)

              100,000     210,000  
                     

              2,648,145     2,704,145  

Mid-Columbia Lumber Products, LLC

 

Specialized Lumber

                   

10% Secured Debt (Maturity—December 18, 2014)

  Products     1,250,000     1,250,000     1,250,000  

12% Secured Debt (Maturity—December 18, 2014)

        3,670,000     3,670,000     3,670,000  

9.5% Secured Debt (Mid-Columbia Real Estate, LLC) (Maturity—May 13, 2025)

        1,062,200     1,062,200     1,062,200  

Warrants (Fully diluted 9.2%)

              250,000     890,000  

Member Units (Fully diluted 42.9%)

              812,000     930,000  

Member Units (Mid-Columbia Real Estate, LLC) (Fully diluted 50.0%)(7)

              250,000     810,000  
                     

              7,294,200     8,612,200  

NAPCO Precast, LLC

 

Precast Concrete

                   

Prime Plus 2%, Current Coupon 9%, Secured Debt (Maturity—February 1, 2013)(8)

  Manufacturing     3,384,615     3,375,903     3,375,903  

18% Secured Debt (Maturity—February 1, 2013)                 

        5,173,077     5,141,956     5,141,956  

Member Units (Fully diluted 46.3%)(7)

              2,975,000     4,195,000  
                     

              11,492,859     12,712,859  

NRI Clinical Research, LLC

 

Clinical Research

                   

14% Secured Debt (Maturity—September 8, 2016)                

        5,500,000     5,183,403     5,183,403  

Warrants (Fully diluted 12.5%)

              251,724     251,724  

Member Units (Fully diluted 24.8%)

              500,000     500,000  
                     

              5,935,127     5,935,127  

F-72


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2011

Portfolio Company/Type of Investment(1)(2)
 
Industry
  Principal(6)   Cost(6)   Fair Value  

NRP Jones, LLC

 

Manufacturer of Hoses,

                   

12% Secured Debt (Maturity—December 22, 2016)

  Fittings and Assemblies     12,100,000     11,041,143     11,041,143  

Warrants (Fully diluted 12.2%)

              816,857     816,857  

Member Units (Fully diluted 43.2%)

              2,900,000     2,900,000  
                     

              14,758,000     14,758,000  

NTS Holdings, Inc.

 

Trench & Traffic Safety

                   

12% Secured Debt (Maturity—April 30, 2015)                

  Equipment     5,770,000     5,741,784     5,741,784  

Preferred Stock (12% cumulative, compounded quarterly)(7)

              11,918,251     11,918,251  

Common Stock (Fully diluted 72.3%)

              1,621,255     2,140,000  
                     

              19,281,290     19,800,035  

OMi Holdings, Inc.

 

Manufacturer of Overhead

                   

12% Secured Debt (Maturity—April 1, 2013)

  Cranes     7,973,843     7,949,594     7,949,594  

Common Stock (Fully diluted 48.0%)

              1,080,000     2,270,000  
                     

              9,029,594     10,219,594  

Pegasus Research Group, LLC (Televerde)

 

Telemarketing and Data

                   

13% Current / 3% PIK Secured Debt (Maturity—January 6, 2016)

  Services     6,159,915     6,088,656     6,088,656  

Member Units (Fully diluted 43.7%)

              1,250,000     1,250,000  
                     

              7,338,656     7,338,656  

PPL RVs, Inc.

 

Recreational Vehicle

                   

18% Secured Debt (Maturity—June 10, 2015)

  Dealers     4,234,526     4,186,015     4,234,526  

Common Stock (Fully diluted 51.1%)

              2,150,000     3,980,000  
                     

              6,336,015     8,214,526  

Principle Environmental, LLC

 

Noise Abatement Services

                   

12% Secured Debt (Maturity—February 1, 2016)                

        4,750,000     3,766,351     4,080,000  

12% Current / 2% PIK Secured Debt (Maturity—February 1, 2016)

        3,506,854     3,449,867     3,506,854  

Warrants (Fully diluted 14.6%)

              1,200,000     2,110,000  

Member Units (Fully diluted 25.0%)

              2,000,000     3,600,000  
                     

              10,416,218     13,296,854  

River Aggregates, LLC

 

Processor of Construction

                   

12% Secured Debt (Maturity—March 30, 2016)                 

  Aggregates     3,470,000     3,226,888     3,226,888  

Warrants (Fully diluted 20.0%)

              202,125     100,125  

Member Units (Fully diluted 40.0%)

              550,000     200,000  
                     

              3,979,013     3,527,013  

The MPI Group, LLC

 

Manufacturer of Custom

                   

4.5% Current / 4.5% PIK Secured Debt

  Hollow Metal Doors,                    

(Maturity—October 2, 2013)

  Frames and Accessories     1,045,013     1,040,768     1,040,768  

6% Current / 6% PIK Secured Debt

                       

(Maturity—October 2, 2013)

        5,405,833     5,293,657     5,293,657  

Warrants (Fully diluted 47.1%)

              895,943      

Member Units (Non-voting)

              200,000      
                     

              7,430,368     6,334,425  

F-73


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2011

Portfolio Company/Type of Investment(1)(2)
 
Industry
  Principal(6)   Cost(6)   Fair Value  

Thermal & Mechanical Equipment, LLC

 

Commercial and Industrial

                   

Prime Plus 2%, Current Coupon 9%, Secured

  Engineering Services                    

Debt (Maturity—September 25, 2014)(8)

        1,272,200     1,266,158     1,266,158  

13% Current / 5% PIK Secured Debt (Maturity—September 25, 2014)

        4,053,020     4,010,236     4,053,020  

Member Units (Fully diluted 50.0%)(7)

              1,000,000     5,660,000  
                     

              6,276,394     10,979,178  

Uvalco Supply, LLC

 

Farm and Ranch Supply

                   

Member Units (Fully diluted 42.8%)(7)

              1,113,243     3,290,000  
                     

Van Gilder Insurance Corporation

 

Insurance Brokerage

                   

8% Secured Debt (Maturity—January 31, 2013)                 

        1,000,000     986,937     986,937  

8% Secured Debt (Maturity—January 31, 2016)                 

        1,721,165     1,705,045     1,705,045  

13% Secured Debt (Maturity—January 31, 2016)                 

        5,400,000     4,387,071     4,387,071  

Warrants (Fully diluted 10.0%)

              1,208,643     1,208,643  

Common Stock (Fully diluted 15.5%)

              2,499,876     2,499,876  
                     

              10,787,572     10,787,572  

Vision Interests, Inc.

 

Manufacturer/Installer of

                   

6.5% Current /6.5% PIK Secured Debt (Maturity—December 23, 2016)

  Commercial Signage     3,000,000     2,934,750     2,934,750  

Series A Prefered Stock (Fully diluted 33.3%)

            3,000,000     3,000,000  

Common Stock (Fully diluted 36.7%)

              3,705,570      
                     

              9,640,320     5,934,750  

Ziegler's NYPD, LLC

 

Casual Restaurant Group

                   

Prime Plus 2%, Current Coupon 9%, Secured Debt (Maturity—October 1, 2013)(8)

        1,000,000     995,966     995,966  

13% Current / 5% PIK Secured Debt (Maturity—October 1, 2013)

        4,298,888     4,270,226     4,270,226  

Warrants (Fully diluted 46.6%)

              600,000     400,000  
                     

              5,866,192     5,666,192  
                     

Subtotal Control Investments (34.9% of total investments at fair value)

              206,786,888     238,923,711  
                     

F-74


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2011

Portfolio Company/Type of Investment(1)(2)
 
Industry
  Principal(6)   Cost(6)   Fair Value  

Affiliate Investments(4)

                       

American Sensor Technologies, Inc.

  Manufacturer of                    

9% Secured Debt (Maturity—May 31, 2012)

  Commercial/Industrial     3,045,808     3,038,982     3,038,982  

Warrants (Fully diluted 19.6%)

  Sensors           49,990     3,100,000  
                     

              3,088,972     6,138,982  

Compact Power Equipment Centers LLC

 

Equipment/Tool Rental

                   

6% Current / 6% PIK Secured Debt (Maturity—December 31, 2014)

        2,855,155     2,831,460     2,831,460  

8% PIK Secured Debt (Maturity—December 31, 2011)

        107,767     107,767     107,767  

Series A Member Units (8% cumulative)(7)

              852,558     852,558  

Member Units (Fully diluted 10.6%)

              1,147     1,147  
                     

              3,792,932     3,792,932  

Drilling Info, Inc.

 

Information Services for

                   

12% Secured Debt (Maturity—November 20, 2014)                 

  the Oil and Gas Industry     8,000,000     7,064,747     8,000,000  

8.75% Secured Debt (Maturity—April 18, 2016)                 

        750,000     750,000     750,000  

Warrants (Fully diluted 4.9%)

              1,250,000     10,360,000  

Common Stock (Fully diluted 2.4%)

              1,335,325     4,890,325  
                     

              10,400,072     24,000,325  

East Teak Fine Hardwoods, Inc.

 

Hardwood Products

                   

Common Stock (Fully diluted 5.0%)

              480,318     380,000  
                     

Gault Financial, LLC (RMB Capital, LLC)

 

Purchases and Manages

                   

14% Secured Debt (Maturity—November 21,

  Liquidation of Distressed                    

2016)

  Assets     10,500,000     9,896,904     9,896,904  

Warrants (Fully diluted 22.5%)

              400,000     400,000  
                     

              10,296,904     10,296,904  

Houston Plating & Coatings, LLC

 

Plating & Industrial

                   

Member Units (Fully diluted 11.1%)(7)

  Coating Services           635,000     5,990,000  
                     

              635,000     5,990,000  

Integrated Printing Solutions, LLC

 

Specialty Card Printing

                   

13% Secured Debt (Maturity—September 23, 2016)

        10,000,000     9,227,866     9,227,866  

Warrants (Fully diluted 9.0%)

              600,000     600,000  
                     

              9,827,866     9,827,866  

IRTH Holdings, LLC

 

Utility Technology

                   

12% Secured Debt (Maturity—December 29, 2015)

  Services     5,083,940     5,005,859     5,083,940  

Member Units (Fully diluted 22.3%)

              850,000     2,480,000  
                     

              5,855,859     7,563,940  

KBK Industries, LLC

 

Specialty Manufacturer of

                   

10% Secured Debt (Maturity—March 31,

  Oilfield and Industrial                    

2012)

  Products     14,940     14,940     14,940  

14% Secured Debt (Maturity—January 23, 2014)                 

        5,250,000     5,250,000     5,250,000  

Member Units (Fully diluted 18.8%)(7)

              340,833     2,800,000  
                     

              5,605,773     8,064,940  

F-75


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2011

Portfolio Company/Type of Investment(1)(2)
 
Industry
  Principal(6)   Cost(6)   Fair Value  

Laurus Healthcare, LP

 

Healthcare Facilities

                   

9% Secured Debt (Maturity—May 12, 2016)

        5,850,000     5,850,000     5,850,000  

Class A and C Units (Fully diluted 13.1%)(7)

              79,505     5,430,000  
                     

              5,929,505     11,280,000  

Olympus Building Services, Inc.

 

Custodial/Facilities

                   

10% Current / 2% PIK Secured Debt (Maturity—March 27, 2014)

  Services     2,434,109     2,306,027     2,306,027  

15% PIK Secured Debt (Maturity—March 27, 2014)

        994,169     994,169     994,169  

Warrants (Fully diluted 22.5%)

              470,000     70,005  
                     

              3,770,196     3,370,201  

OnAsset Intelligence, Inc.

 

Transportation Monitoring/

                   

12% Secured Debt (Maturity—October 18, 2012)                

  Tracking Services     1,500,000     915,566     915,566  

Preferred Stock (7% cumulative) (Fully diluted 5.75%)(7)

              1,576,508     1,576,508  

Warrants (Fully diluted 4.0%)

              830,000     830,000  
                     

              3,322,074     3,322,074  

OPI International Ltd.

 

Oil and Gas Construction

                   

12% Secured Debt (Maturity—November 30, 2015)

  Services     11,520,000     10,882,348     11,130,000  

Warrants (Fully diluted 8.0%)

              500,000     4,100,000  
                     

              11,382,348     15,230,000  

Radial Drilling Services Inc.

 

Oil and Gas Technology

                   

12% Secured Debt (Maturity—November 23, 2016)

        4,200,000     3,366,573     3,366,573  

Warrants (Fully diluted 24.0%)

              758,448     758,448  
                     

              4,125,021     4,125,021  

Samba Holdings, Inc.

 

Vechicle Compliance

                   

12.5% Secured Debt (Maturity—November 17, 2016)

  Software & Services     3,000,000     2,940,714     2,940,714  

Common Stock (Fully diluted 14.7%)

              950,000     950,000  
                     

              3,890,714     3,890,714  

Schneider Sales Management, LLC

 

Sales Consulting and

                   

13% Secured Debt (Maturity—October 15, 2013)                

  Training     3,567,542     3,489,127     250,000  

Warrants (Fully diluted 20.0%)

              45,000      
                     

              3,534,127     250,000  

Spectrio LLC

 

Audio Messaging Services

                   

12% Secured Debt (Maturity—June 16, 2016)

        13,475,000     13,009,486     13,341,000  

8% Secured Debt (Maturity—June 16, 2016)

        168,000     168,000     168,000  

Warrants (Fully diluted 9.8%)

              886,933     2,720,000  
                     

              14,064,419     16,229,000  

SYNEO, LLC

 

Manufacturer of Specialty

                   

12% Secured Debt (Maturity—July 13, 2016)

  Cutting Tools and Punches     5,500,000     5,373,803     5,373,803  

10% Secured Debt (Maturity—May 4, 2026)

        1,440,000     1,411,754     1,411,754  

Member Units (Fully diluted 11.1%)

              1,000,000     1,000,000  
                     

              7,785,557     7,785,557  

Walden Smokey Point, Inc.

 

Specialty Transportation

                   

Common Stock (Fully diluted 12.6%)

              1,426,667     4,220,000  
                     

F-76


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2011

Portfolio Company/Type of Investment(1)(2)
 
Industry
  Principal(6)   Cost(6)   Fair Value  

WorldCall, Inc.

 

Telecommunication/

                   

13% Secured Debt (Maturity—April 22, 2012)                

  Information Services     646,225     646,225     646,225  

Common Stock (Fully diluted 10.0%)

              296,631      
                     

              942,856     646,225  
                     

Subtotal Affiliate Investments (21.4% of total investments at fair value)

              110,157,180     146,404,681  
                     

F-77


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2011

Portfolio Company/Type of Investment(1)(2)
 
Industry
  Principal(6)   Cost(6)   Fair Value  

Non-Control/Non-Affiliate Investments(5)

                       

Affinity Videonet, Inc.

  Videoconferencing                    

13% Secured Debt (Maturity—December 31, 2015)

  Services     2,000,000     1,912,809     2,000,000  

13% Current / 1% PIK Secured Debt (Maturity—December 31, 2015)

        1,132,471     1,125,014     1,125,014  

Warrants (Fully diluted 2.6%)

              62,500     62,500  
                     

              3,100,323     3,187,514  

Arrowhead General Insurance Agency, Inc.(9)

 

Insurance

                   

LIBOR plus 5.75%, Current Coupon 7.50%, Secured Debt (Maturity—March 4, 2017)(8)

        3,970,000     3,899,359     3,931,551  

LIBOR plus 9.5%, Current Coupon 11.25%, Secured Debt (Maturity—September 30, 2017)(8)

        2,000,000     1,944,320     2,010,000  
                     

              5,843,679     5,941,551  

Business Development Corporation of America

 

Investment Management

                   

LIBOR plus 3.50%, Current Coupon 3.77%, Secured Debt (Maturity—January 14, 2013)

        5,900,000     5,900,000     5,900,000  
                     

Bourland & Leverich Supply Co., LLC(9)

 

Distributor of Oil & Gas

                   

LIBOR Plus 9.00%, Current Coupon 11.00%, Secured Debt (Maturity—August 19, 2015)(8)

  Tubular Goods     4,190,626     4,028,496     4,064,907  
                     

Brand Connections, LLC

 

Venue-Based Marketing

                   

14% Secured Debt (Maturity—April 30, 2015)                 

  and Media     6,761,443     6,638,862     6,638,862  
                     

CHI Overhead Doors, Inc.(9)

 

Manufacturer of Overhead

                   

LIBOR Plus 5.75%, Current Coupon 7.25%, Secured Debt (Maturity—August 17, 2017)(8)

  Garage Doors     2,493,750     2,446,087     2,462,578  

LIBOR Plus 9.50%, Current Coupon 11.00%, Secured Debt (Maturity—February 17, 2018)(8)

        2,500,000     2,451,765     2,462,500  
                     

              4,897,852     4,925,078  

Diversified Machine(9)

 

Automotive Component

                   

LIBOR plus 7.75%, Current Coupon 9.25%, Secured Debt (Maturity—November 28, 2017)(8)

  Supplier     2,000,000     1,960,412     2,001,250  
                     

EnCap Energy Capital Fund VIII, L.P.(9)

 

Oil & Gas Investment

                   

LP Interests (Fully diluted 0.2%)

  Management           708,747     708,747  
                     

Fairway Group Acquisition(9)

 

Retail Grocery

                   

LIBOR plus 6.00%, Current Coupon 7.50%, Secured Debt (Maturity—March 3, 2017)(8)

        7,462,512     7,403,429     7,252,629  
                     

Fram Group Holdings, Inc.(9)

 

Automotive Maintenance

                   

LIBOR plus 5.00%, Current Coupon 6.50%, Secured Debt (Maturity—July 29, 2017)(8)

  Products     997,500     992,799     998,747  

LIBOR plus 9.00%, Current Coupon 10.50%, Secured Debt (Maturity—January 29, 2018)(8)

        1,000,000     995,228     967,500  
                     

              1,988,027     1,966,247  

Flexera Software(9)

 

Application Software

                   

LIBOR Plus 9.75%, Current Coupon 11.00%, Secured Debt (Maturity—September 30, 2018)(8)

  Services     3,000,000     2,765,411     2,790,000  
                     

F-78


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2011

Portfolio Company/Type of Investment(1)(2)
 
Industry
  Principal(6)   Cost(6)   Fair Value  

Golden Nugget, LLC(9)

 

Hotel and Gaming

                   

LIBOR Plus 8.50%, Current Coupon 10.00%, Secured Debt (Maturity—May 24, 2016)(8)

        10,000,000     9,636,156     9,450,000  
                     

Gundle/SLT Environmental, Inc.(9)

 

Manufacturer of

                   

LIBOR plus 5.50%, Current Coupon 7.00%, Secured Debt (Maturity—May 27, 2016)(8)

  Geosynthetic Lining Products     2,985,000     2,958,103     2,940,225  

LIBOR Plus 9.50%, Current Coupon 13.00%, Secured Debt (Maturity—November 23, 2016)(8)

        4,000,000     3,925,962     3,980,000  
                     

              6,884,065     6,920,225  

Hayden Acquisition, LLC

 

Manufacturer of Utility

                   

8% Secured Debt (Maturity—January 1, 2012)                

  Structures     1,800,000     1,781,303      
                     

HMS Income LLC

 

Investment Management

                   

LIBOR plus 3.00%, Current Coupon 3.27%, Secured Debt (Maturity—December 12, 2012)

        7,500,000     7,500,000     7,500,000  
                     

Kadmon Pharmaceuticals(9)

 

Biopharmaceutical Products

                   

LIBOR Plus 13.00%, Current Coupon 15.00%, Secured Debt (Maturity—October 31, 2012)(8)

        6,000,000     5,898,563     6,255,000  
                     

Liqui-Box (9)

 

Specialty Packaging

                   

LIBOR plus 5.25%, Current Coupon 6.75%, Secured Debt (Maturity—December 29, 2017)(8)

        3,000,000     2,955,000     2,985,000  
                     

Media Holdings, LLC(9)

 

Internet Traffic Generator

                   

LIBOR plus 13.00%, Current Coupon 15.00%, Secured Debt (Maturity—April 28, 2014)(8)

        5,000,000     5,129,078     5,000,000  
                     

Megapath, Inc.(9)

 

Communiations Technology

                   

LIBOR plus 10.00%, Current Coupon 12.00%, Secured Debt (Maturity—November 3, 2015)(8)

        3,600,000     3,541,327     3,546,000  
                     

Metropolitan Health(9)

 

Healthcare Network

                   

LIBOR plus 5.50%, Current Coupon 7.00%, Secured Debt (Maturity—October 4, 2016)(8)

  Provider     2,000,000     1,971,229     1,940,000  

LIBOR plus 11.75%, Current Coupon 13.50%, Secured Debt (Maturity—October 4, 2017)(8)

        3,250,000     3,186,561     3,185,000  
                     

              5,157,790     5,125,000  

Milk Specialties(9)

 

Nutrition Products

                   

LIBOR plus 7.00%, Current Coupon 8.50%, Secured Debt (Maturity—December 27, 2017)(8)

        4,000,000     3,880,000     3,900,000  

LIBOR plus 13.00%, Current Coupon 14.50%, Secured Debt (Maturity—December 27, 2018)(8)

        1,000,000     960,000     965,000  
                     

              4,840,000     4,865,000  

Miramax Film NY, LLC(9)

 

Motion Picture Producer

                   

Class B Units (Fully diluted 0.2%)

  and Distributor           500,000     500,000  
                     

F-79


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2011

Portfolio Company/Type of Investment(1)(2)
 
Industry
  Principal(6)   Cost(6)   Fair Value  

National Healing(9)

 

Wound Care Management

                   

LIBOR plus 6.75%, Current Coupon 8.25%, Secured Debt (Maturity—November 30, 2017)(8)

        2,750,000     2,613,645     2,653,750  

LIBOR plus 10.00%, Current Coupon 11.50%, Secured Debt (Maturity—November 30, 2018)(8)

        1,500,000     1,410,833     1,432,500  

Common Equity (Fully diluted 0.02%)

              50,000     50,000  
                     

              4,074,478     4,136,250  

Northland Cable Television, Inc.(9)

 

Television Broadcasting

                   

LIBOR Plus 6.00%, Current Coupon 7.75%, Secured Debt (Maturity—December 30, 2016)(8)

        4,950,000     4,823,427     4,801,500  
                     

Physician Oncology Services, L.P.(9)

 

Healthcare Services

                   

LIBOR plus 4.75%, Current Coupon 6.25%, Secured Debt (Maturity—January 31, 2017)(8)

        941,962     933,702     904,284  
                     

Pierre Foods, Inc.(9)

 

Foodservice Supplier

                   

LIBOR plus 5.25%, Current Coupon 7.00%, Secured Debt (Maturity—September 30, 2016)(8)

        4,950,000     4,868,384     4,945,372  

LIBOR plus 9.50%, Current Coupon 11.25%, Secured Debt (Maturity—September 29, 2017)(8)

        2,000,000     1,938,944     1,995,000  
                     

              6,807,328     6,940,372  

Preferred Sands(9)

 

Producer of Sand Based

                   

LIBOR plus 6.00%, Current Coupon 7.50%, Secured Debt (Maturity—December 15, 2016)(8)

  Proppants     5,000,000     4,876,663     4,887,500  
                     

Shearer's Foods, Inc.(9)

 

Manufacturer of Food/

                   

12.00% current / 3.75% PIK Secured Debt (Maturity—March 31, 2016)

  Snacks     4,262,307     4,179,069     4,091,815  
                     

Sourcehov LLC(9)

 

Business Process

                   

LIBOR plus 5.38%, Current Coupon 6.63%, Secured Debt (Maturity—April 28, 2017)(8)

  Services     2,992,500     2,895,553     2,525,670  

LIBOR plus 9.25%, Current Coupon 10.50%, Secured Debt (Maturity—April 30, 2018)(8)

        3,000,000     2,872,148     2,505,000  
                     

              5,767,701     5,030,670  

The Tennis Channel, Inc.

 

Television-Based Sports

                   

LIBOR Plus 6% / 4% PIK, Current Coupon with PIK 14%, Secured Debt (Maturity—January 1, 2013)(8)

  Broadcasting     10,610,008     11,450,362     11,450,362  

Warrants (Fully diluted 0.1%)

              235,467     235,467  
                     

              11,685,829     11,685,829  

Ulterra Drilling Technologies, L.P.(9)

 

Oil & Gas Drilling

                   

LIBOR plus 7.50%, Current Coupon 9.50%, Secured Debt (Maturity—June 9, 2016)(8)

        6,571,994     6,452,419     6,440,554  

LIBOR plus 7.50%, Current Coupon 9.50%, Secured Debt (Maturity—June 9, 2016)(8)

        1,848,367     1,802,844     1,753,601  
                     

              8,255,263     8,194,155  

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Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2011

Portfolio Company/Type of Investment(1)(2)
 
Industry
  Principal(6)   Cost(6)   Fair Value  

UniTek Global Services, Inc.(9)

 

Engineering and

                   

LIBOR plus 7.50%, Current Coupon 9.00%, Secured Debt (Maturity—April 15, 2018)(8)

  Construction Management Services     6,433,794     6,255,641     6,305,118  
                     

Vision Solutions, Inc.(9)

 

Computer Software

                   

LIBOR plus 4.50%, Current Coupon 6.00%, Secured Debt (Maturity—July 23, 2016)(8)

        2,838,141     2,585,863     2,585,412  

LIBOR plus 8.00%, Current Coupon 9.50%, Secured Debt (Maturity—July 23, 2017)(8)

        5,000,000     4,954,675     4,850,000  
                     

              7,540,538     7,435,412  

Walter Investment Management Corp.(9)

 

Real Estate

                   

LIBOR plus 6.25%, Current Coupon 7.75%, Secured Debt (Maturity—June 30, 2016)(8)

        2,887,500     2,833,192     2,886,605  

LIBOR plus 11.00%, Current Coupon 12.50%, Secured Debt (Maturity—December 30, 2016)(8)

        3,000,000     2,943,865     3,035,625  
                     

              5,777,057     5,922,230  

Willis Group, LLC

 

Staffing and Recruitment

                   

12% Current / 3% PIK Secured Debt (Maturity—December 19, 2014)

  Services     9,000,000     8,823,674     8,823,674  
                     

Subtotal Non-Control/Non-Affiliate Investments (25.8% of total investments at fair value)                

              178,858,890     176,681,819  
                     

Main Street Capital Partners, LLC (Investment Manager) (0.3% of total investments at fair value)

 

Asset Management

                   

100% of Membership Interests

              4,284,042     1,869,242  
                     

Total Portfolio Investments, December 31, 2011                

            $ 500,087,000   $ 563,879,453  
                     

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Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2011

Portfolio Company/Type of Investment(1)(2)
 
Industry
  Principal(6)   Cost(6)   Fair Value  

Marketable Securities and Idle Funds Investments

                       

Academy, Ltd.

  Investments in Secured and                    

LIBOR Plus 4.50%, Current Coupon 6.00%, Secured Debt (Maturity—August 3, 2018)(8)

  Rated Debt Investments and Diversified Bond Funds   $ 3,000,000   $ 2,988,534   $ 2,976,660  

A. M. Castle & Co.

                       

12.75% Bond (Maturity—December 15, 2016)

        3,000,000     2,895,682     3,015,000  

API Technologies

                       

LIBOR Plus 6.25%, Current Coupon 7.75%, Secured Debt (Maturity—June 27, 2016)(8)

        2,486,397     2,405,965     2,374,509  

ATI Acquisition I Corp.

                       

LIBOR Plus 5.50%, Current Coupon 7.50%, Secured Debt (Maturity—March 11, 2016)(8)

        2,848,889     2,811,543     2,725,447  

Brickman Group Holdings, Inc.

                       

LIBOR Plus 5.50%, Current Coupon 7.25%, Secured Debt (Maturity—October 14, 2016)(8)

        1,989,950     1,962,059     1,997,437  

Carestream Health, Inc.

                       

LIBOR Plus 3.50%, Current Coupon 5.00%, Secured Debt (Maturity—February 25, 2017)(8)

        2,984,523     2,704,461     2,690,473  

Centerplate, Inc.

                       

LIBOR Plus 8.50%, Current Coupon 10.50%, Secured Debt (Maturity—September 16, 2016)(8)

        2,970,000     2,896,195     2,966,288  

Fairfield Redevelopment Bond

                       

9.50% Bond (Maturity—March 1, 2021)

        3,085,000     3,131,800     3,254,367  

General Motors Company

                       

Preferred stock (0.59% cumulative)(7)

              255,000     174,675  

Helm Financial Corporation

                       

LIBOR Plus 5.00%, Current Coupon 6.25%, Secured Debt (Maturity—June 1, 2017)(8)

        1,985,000     1,966,715     1,940,338  

Henniges Automotive Holdings, Inc.

                       

LIBOR Plus 10.00%, Current Coupon 12.00%, Secured Debt (Maturity—October 28, 2016)(8)

        2,833,333     2,784,529     2,784,529  

HOA Restaurant Group

                       

11.25% Bond (Maturity—April 1, 2017)

        2,000,000     2,000,000     1,865,000  

Il Fornaio Corporation

                       

LIBOR Plus 5.25%, Current Coupon 6.50%, Secured Debt (Maturity—June 10, 2017)(8)

        1,985,000     1,975,865     1,978,380  

Industry Bond

                       

8.00% Bond (Maturity—January 1, 2020)

        3,500,000     3,668,305     3,763,200  

Ipreo Holdings LLC

                       

LIBOR Plus 6.50%, Current Coupon 8.00%, Secured Debt (Maturity—August 5, 2017)(8)

        4,239,375     4,160,249     4,143,989  

Ivy Hill Middle Market Credit Fund III, Ltd.

                       

LIBOR Plus 6.50%, Current Coupon 6.77%, Secured Debt (Maturity—January 15, 2022)

        2,000,000     1,659,188     1,658,000  

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Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2011

Portfolio Company/Type of Investment(1)(2)
 
Industry
  Principal(6)   Cost(6)   Fair Value  

JJ Lease Funding Corp.

                       

LIBOR Plus 8.50%, Current Coupon 10.00%, Secured Debt (Maturity—April 29, 2017)(8)

        3,950,000     3,842,109     3,160,000  

Lawson Software, Inc.

                       

LIBOR Plus 5.25%, Current Coupon 6.75%, Secured Debt (Maturity—July 5, 2017)(8)

        4,987,500     4,801,166     4,874,833  

Medpace Intermediateco, Inc.

                       

LIBOR Plus 5.00%, Current Coupon 6.50%, Secured Debt (Maturity—June 17, 2017)(8)

        4,975,000     4,905,415     4,726,250  

Mood Media Corporation

                       

LIBOR Plus 5.50%, Current Coupon 7.00%, Secured Debt (Maturity—May 6, 2018)(8)

        2,985,000     2,955,784     2,778,542  

MultiPlan, Inc.

                       

LIBOR Plus 3.25%, Current Coupon 4.75%, Secured Debt (Maturity—August 26, 2017)(8)

        2,956,320     2,956,320     2,820,831  

Ocwen Financial Corporation

                       

LIBOR Plus 5.50%, Current Coupon 7.00%, Secured Debt (Maturity—September 1, 2016)(8)

        4,750,000     4,660,292     4,684,689  

Pacific Architects and Engineers Incorporated

                       

LIBOR Plus 6.00%, Current Coupon 7.50%, Secured Debt (Maturity—April 4, 2017)(8)

        3,995,000     3,917,363     3,875,150  

Phillips Plastic Corporation

                       

LIBOR Plus 5.00%, Current Coupon 6.50%, Secured Debt (Maturity—February 12, 2017)(8)

        1,750,000     1,733,484     1,736,875  

Pretium Packaging Bond

                       

11.50% Bond (Maturity—April 1, 2016)

        4,500,000     4,514,776     4,410,000  

Race Point Power, LLC

                       

LIBOR Plus 6.00%, Current Coupon 7.75%, Secured Debt (Maturity—January 11, 2018)(8)

        4,657,755     4,575,814     4,617,000  

Radio One, Inc.

                       

LIBOR Plus 6.00%, Current Coupon 7.50%, Secured Debt (Maturity—March 31, 2016)(8)

        2,977,500     2,925,373     2,775,030  

San Diego Redevelopment Bond

                       

7.38% Bond (Maturity—September 1, 2037)

        275,000     275,000     283,553  

SonicWALL, Inc.

                       

LIBOR Plus 6.25%, Current Coupon 8.25%, Secured Debt (Maturity—January 23, 2016)(8)

        1,071,774     1,073,277     1,074,454  

Speedy Cash Intermediate Holdings Corp.

                       

10.75% Bond (Maturity—May 15, 2018)

        2,000,000     2,000,000     2,010,000  

Stanton Redevelopment Tax Bond

                       

9.00% Bond (Maturity—December 1, 2021)

        980,000     1,012,308     1,024,492  

Stora Enso OYJ

                       

7.25% Bond (Maturity—April 15, 2036)

        5,700,000     4,596,016     4,645,500  

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Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2011

Portfolio Company/Type of Investment(1)(2)
 
Industry
  Principal(6)   Cost(6)   Fair Value  

Surgery Center Holdings, Inc.

                       

LIBOR Plus 5.00%, Current Coupon 6.50%, Secured Debt (Maturity—February 6, 2017)(8)

        4,962,500     4,940,029     4,627,532  

Toll Road Bond

                       

Zero Coupon Bond (Maturity—February 15, 2033)                

        7,500,000     1,619,657     1,940,250  

Totes Isotoner Corporation

                       

LIBOR Plus 5.75%, Current Coupon 7.25%, Secured Debt (Maturity—July 7, 2017)(8)

        4,976,172     4,883,062     4,839,328  

United Refining Company

                       

10.50% Bond (Maturity—February 28, 2017)

        3,990,000     3,965,830     3,730,650  

VFH Parent LLC

                       

LIBOR Plus 6.00%, Current Coupon 7.50%, Secured Debt (Maturity—July 8, 2016)(8)

        4,179,703     4,102,916     4,195,398  

Visant Corporation

                       

LIBOR Plus 4.00%, Current Coupon 5.25%, Secured Debt (Maturity—December 22, 2016)(8)

        3,997,651     3,997,651     3,759,930  

Wyle Services Corporation

                       

LIBOR Plus 4.25%, Current Coupon 5.75%, Secured Debt (Maturity—March 26, 2017)(8)

        3,735,267     3,714,898     3,657,442  

Yankee Cable Acquisition, LLC

                       

LIBOR Plus 4.50%, Current Coupon 6.50%, Secured Debt (Maturity—August 26, 2016)(8)

        3,950,000     3,902,200     3,899,578  
                     

Subtotal Marketable Securities and Idle Funds Investments (17.6% of total investments at fair value)

              122,136,830     120,455,599  
                     

Total Investments, December 31, 2011

            $ 622,223,830   $ 684,335,052  
                     

(1)
Debt investments are generally income producing. Equity and warrants are non-income producing, unless otherwise noted.

(2)
See Note C for summary geographic location of portfolio companies.

(3)
Controlled investments are defined by the Investment Company Act of 1940, as amended ("1940 Act") as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained.

(4)
Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% of the voting securities are owned and the investments are not classified as Controlled investments.

(5)
Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control Investments nor Affiliate Investments.

(6)
Principal is net of prepayments. Cost is net of prepayments and accumulated unearned income.

(7)
Income producing through dividends or distributions.

(8)
Index based floating interest rate is subject to contractual minimum interest rates.

(9)
Private placement portfolio investment.

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Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS

December 31, 2010

Portfolio Company/Type of Investment(1)(2)
 
Industry
  Principal(6)   Cost(6)   Fair Value  

Control Investments(3)

                       

Café Brazil, LLC

  Casual Restaurant                    

12% Secured Debt (Maturity—April 20, 2013)

  Group     2,000,000     1,997,439     2,000,000  

Member Units (Fully diluted 41.0%)(7)

              41,837     2,240,000  
                     

              2,039,276     4,240,000  

California Healthcare Medical Billing, Inc.

 

Healthcare Billing and

                   

12% Secured Debt (Maturity—October 17, 2013)

  Records Management     7,303,000     6,937,251     6,985,748  

Warrants (Fully diluted 20.4%)

              1,193,333     3,380,333  

Common Stock (Fully diluted 9.7%)

              1,176,667     1,390,000  
                     

              9,307,251     11,756,081  

CBT Nuggets, LLC

 

Produces and Sells IT

                   

10% Secured Debt (Maturity—March 31, 2012)

  Certification Training     775,000     775,000     775,000  

14% Secured Debt (Maturity—December 31,

  Videos                    

2013)

        2,800,000     2,787,551     2,792,180  

Member Units (Fully diluted 40.8%)(7)

              1,299,520     3,450,000  
                     

              4,862,071     7,017,180  

Ceres Management, LLC (Lambs)

 

Aftermarket Automotive

                   

14% Secured Debt (Maturity—May 31, 2013)

  Services Chain     4,000,000     3,964,568     3,964,568  

9.5% Secured Debt (Lamb's Real Estate Investment I, LLC) (Maturity—August 31, 2014)

        1,225,000     1,225,000     1,225,000  

Class B Member Units (15% cumulative compounding quarterly) (Non-voting)

              1,508,611     1,508,611  

Member Units (Fully diluted 70%)

              1,813,333     1,100,000  

Member Units (Lamb's Real Estate Investment I, LLC) (Fully diluted 100%)(7)

              625,000     625,000  
                     

              9,136,512     8,423,179  

Condit Exhibits, LLC

 

Tradeshow Exhibits/

                   

9% current / 9% PIK Secured Debt (Maturity—

  Custom Displays                    

July 1, 2013)

        4,660,948     4,619,659     4,619,659  

Warrants (Fully diluted 47.9%)

              320,000     50,000  
                     

              4,939,659     4,669,659  

Currie Acquisitions, LLC

 

Manufacturer of Electric

                   

12% Secured Debt (Maturity—March 1, 2015)

  Bicycles/Scooters     4,750,000     3,971,699     3,971,699  

Warrants (Fully diluted 47.3%)

              2,566,204     2,340,204  
                     

              6,537,903     6,311,903  

Gulf Manufacturing, LLC

 

Industrial Metal Fabrication

                   

8% Secured Debt (Maturity—August 31, 2014)

        3,620,000     3,620,000     3,620,000  

13% Secured Debt (Maturity—August 31, 2012)

        1,680,000     1,649,959     1,675,165  

9% PIK Secured Debt (Maturity—June 30, 2017)

        1,420,784     1,420,784     1,420,784  

Member Units (Fully diluted 34.2%)(7)

              2,979,813     5,870,000  
                     

              9,670,556     12,585,949  

Harrison Hydra-Gen, Ltd.

 

Manufacturer of Hydraulic

                   

12% Secured Debt (Maturity—June 4, 2015)

  Generators     6,000,000     5,255,101     5,255,101  

Warrants (Fully diluted 35.2%)

              717,640     717,640  

Mandatorily Redeemable Preferred Stock

              1,000,000     1,000,000  
                     

              6,972,741     6,972,741  

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Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2010

Portfolio Company/Type of Investment(1)(2)
 
Industry
  Principal(6)   Cost(6)   Fair Value  

Hawthorne Customs & Dispatch Services, LLC

 

Transportation/ Logistics

                   

Member Units (Fully diluted 59.1%)(7)

              692,500     1,250,000  

Member Units (Wallisville Real Estate, LLC) (Fully diluted 59.1%)(7)

              1,214,784     1,214,784  
                     

              1,907,284     2,464,784  

Hydratec, Inc.

 

Agricultural Services

                   

Common Stock (Fully diluted 92.5%)(7)

              7,087,911     9,177,911  
                     

Indianapolis Aviation Partners, LLC

 

FBO / Aviation

                   

12% Secured Debt (Maturity—September 15, 2014)

  Support Services     4,500,000     4,140,255     4,350,000  

Warrants (Fully diluted 30.1%)

              1,129,286     1,570,286  
                     

              5,269,541     5,920,286  

Jensen Jewelers of Idaho, LLC

 

Retail Jewelry

                   

Prime Plus 2% Secured Debt (Maturity—November 14, 2011)

        2,260,000     2,256,486     2,260,000  

13% current / 6% PIK Secured Debt (Maturity—November 14, 2011)

        2,344,897     2,340,040     2,344,896  

Member Units (Fully diluted 60.8%)(7)

              811,000     1,060,000  
                     

              5,407,526     5,664,896  

Mid-Columbia Lumber Products, LLC

 

Specialized Lumber

                   

10% Secured Debt (Maturity—April 1, 2012)

  Products     1,250,000     1,250,000     1,250,000  

12% Secured Debt (Maturity—December 18, 2011)

        3,900,000     3,803,664     3,900,000  

9.5% Secured Debt (Mid-Columbia Real Estate, LLC) (Maturity—May 13, 2025)

        1,107,400     1,107,400     1,107,400  

Warrants (Fully diluted 25.5%)

              250,000     740,000  

Member Units (Fully diluted 26.7%)

              500,000     770,000  

Member Units (Mid-Columbia Real Estate, LLC) (Fully diluted 50.0%)

              250,000     250,000  
                     

              7,161,064     8,017,400  

NAPCO Precast, LLC

 

Precast Concrete

                   

18% Secured Debt (Maturity—February 1, 2013)

  Manufacturing     5,923,077     5,860,313     5,923,077  

Prime Plus 2%, Current Coupon 9%, Secured Debt (Maturity—February 1, 2013)(8)

        3,384,615     3,368,600     3,384,615  

Member Units (Fully diluted 35.3%)(7)

              2,020,000     4,340,000  
                     

              11,248,913     13,647,692  

NTS Holdings, Inc.

 

Trench & Traffic Safety

                   

12% Secured Debt (Maturity—April 30, 2015)

  Equipment     6,000,000     5,963,931     5,963,931  

Preferred stock (12% cumulative, compounded quarterly)(7)

              10,635,273     10,635,273  

Common Stock (Fully diluted 72.3%)

              1,621,255     776,000  
                     

              18,220,459     17,375,204  

OMi Holdings, Inc.

 

Manufacturer of Overhead

                   

12% Secured Debt (Maturity—April 1, 2013)

  Cranes     10,170,000     10,116,824     10,116,824  

Common Stock (Fully diluted 48.0%)

              1,080,000     500,000  
                     

              11,196,824     10,616,824  

PPL RVs, Inc.

 

RV Aftermarket

                   

18% Secured Debt (Maturity—June 10, 2015)

  Consignment/Parts     6,250,000     6,165,058     6,165,058  

Common Stock (Fully diluted 50.1%)

              2,150,000     2,150,000  
                     

              8,315,058     8,315,058  

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Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2010

Portfolio Company/Type of Investment(1)(2)
 
Industry
  Principal(6)   Cost(6)   Fair Value  

The MPI Group, LLC

 

Manufacturer of Custom

                   

4.5% current / 4.5% PIK Secured Debt

  Hollow Metal Doors,                    

(Maturity—October 2, 2013)

  Frames and Accessories     507,625     501,176     501,176  

6% current / 6% PIK Secured Debt (Maturity—October 2, 2013)

        5,101,667     4,935,760     4,935,760  

Warrants (Fully diluted 47.1%)

              895,943     190,000  
                     

              6,332,879     5,626,936  

Thermal & Mechanical Equipment, LLC

 

Heat Exchange / Filtration

                   

Prime plus 2%, Current Coupon 9%, Secured Debt

  Products and Services                    

(Maturity—September 25, 2014)(8)

        1,750,000     1,739,152     1,739,152  

13% current / 5% PIK Secured Debt (Maturity—September 25, 2014)

        5,575,220     5,501,111     5,575,220  

Warrants (Fully diluted 50.0%)

              1,000,000     1,940,000  
                     

              8,240,263     9,254,372  

Uvalco Supply, LLC

 

Farm and Ranch Supply

                   

Member Units (Fully diluted 42.8%)(7)

              1,113,243     1,560,000  
                     

Vision Interests, Inc.

 

Manufacturer/Installer of

                   

2.6% current /10.4% PIK Secured Debt (Maturity—

  Commercial Signage                    

June 5, 2012)

        9,400,000     8,424,811     8,022,651  

2.6% current /10.4% PIK Secured Debt (Maturity—June 5, 2016)

        760,000     739,663     739,663  

Warrants (Fully diluted 38.2%)

              160,010      

Common Stock (Fully diluted 22.3%)

              372,000      
                     

              9,696,484     8,762,314  

Ziegler's NYPD, LLC

 

Casual Restaurant Group

                   

Prime plus 2%, Current Coupon 9%, Secured Debt (Maturity—October 1, 2013)(8)

        1,000,000     993,937     993,937  

13% current / 5% PIK Secured Debt (Maturity—October 1, 2013)

        4,801,810     4,752,088     4,752,088  

Warrants (Fully diluted 46.6%)

              600,000     470,000  
                     

              6,346,025     6,216,025  
                     

Subtotal Control Investments

              161,009,443     174,596,394  
                     

F-87


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2010

Portfolio Company/Type of Investment(1)(2)
 
Industry
  Principal(6)   Cost(6)   Fair Value  

Affiliate Investments(4)

                       

American Sensor Technologies, Inc.

  Manufacturer of                    

9% current / 2% PIK Secured Debt

  Commercial/Industrial                    

(Maturity—May 31, 2012)

  Sensors     3,536,182     3,514,113     3,514,113  

Warrants (Fully diluted 19.6%)

              49,990     1,830,000  
                     

              3,564,103     5,344,113  

Audio Messaging Solutions, LLC

 

Audio Messaging

                   

12% Secured Debt (Maturity—May 8, 2014)                

  Services     7,700,000     7,356,395     7,426,299  

Warrants (Fully diluted 8.4%)

              468,373     1,280,000  
                     

              7,824,768     8,706,299  

Compact Power Equipment Centers, LLC

 

Light to Medium Duty

                   

6% Current / 6% PIK Secured Debt (Maturity—September 23, 2014)

  Equipment Rental     3,153,971     3,120,950     3,120,950  

Member Units (Fully diluted 11.5%)

              1,147     1,147  
                     

              3,122,097     3,122,097  

DrillingInfo, Inc.

 

Information Services

                   

12% Secured Debt (Maturity—

  for the Oil and Gas                    

November 20, 2014)

  Industry     8,000,000     6,832,370     7,770,000  

Warrants (Fully diluted 5.0%)

              1,250,000     4,010,000  

Common Stock (Fully diluted 2.1%)

              1,085,325     1,710,325  
                     

              9,167,695     13,490,325  

East Teak Fine Hardwoods, Inc.

 

Hardwood Products

                   

Common Stock (Fully diluted 5.0%)

              480,318     330,000  
                     

Houston Plating & Coatings, LLC

 

Plating & Industrial

                   

Prime plus 2% Debt (Maturity—July 18, 2013)                

  Coating Services     300,000     300,000     300,000  

Member Units (Fully diluted 11.1%)(7)

              335,000     3,025,000  
                     

              635,000     3,325,000  

IRTH Holdings, LLC

 

Utility Technology

                   

12% Secured Debt (Maturity—December 29, 2015)

  Services     6,000,000     5,891,126     5,891,126  

Member Units (Fully diluted 22.3%)

              850,000     850,000  
                     

              6,741,126     6,741,126  

KBK Industries, LLC

 

Specialty Manufacturer

                   

10% Secured Debt (Maturity—March 31,

  of Oilfield and                    

2011)

  Industrial Products     514,940     514,940     514,940  

14% Secured Debt (Maturity—January 23, 2011)

        5,250,000     5,241,999     5,241,999  

Member Units (Fully diluted 18.8%)(7)

              340,833     1,790,333  
                     

              6,097,772     7,547,272  

Laurus Healthcare, LP

 

Healthcare Facilities /

                   

13% Secured Debt (Maturity—May 7,

  Services                    

2012)

        2,275,000     2,275,000     2,275,000  

13% Secured Debt (Maturity—December 31, 2011)

        525,000     525,000     525,000  

Warrants (Fully diluted 13.1%)

              79,505     4,620,000  
                     

              2,879,505     7,420,000  

F-88


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2010

Portfolio Company/Type of Investment(1)(2)
 
Industry
  Principal(6)   Cost(6)   Fair Value  

Lighting Unlimited, LLC

 

Commercial and

                   

Prime Plus 1% Secured Debt (Maturity—

  Residential                    

August 22, 2012)(8)

  Lighting Products     949,996     946,598     946,598  

14% Secured Debt (Maturity—August 22,

  and Design Services                    

2012)

        1,760,101     1,723,326     1,723,326  

Warrants (Fully diluted 17.0%)

              54,000      
                     

              2,723,924     2,669,924  

Merrick Systems, Inc.

 

Software and

                   

13% Secured Debt (Maturity—May 5,

  Information     3,000,000     2,540,849     2,540,849  

2015)

  Technology                    

Warrants (Fully diluted 6.5%)

              450,000     450,000  
                     

              2,990,849     2,990,849  

Olympus Building Services, Inc.

  Custodial/Facilities                    

12% Secured Debt (Maturity—March 27, 2014)

  Services     3,150,000     2,976,408     3,050,000  

12% Current / 3% PIK Secured Debt (Maturity—March 27, 2014)

        984,000     984,001     984,001  

Warrants (Fully diluted 22.5%)

              470,000     930,000  
                     

              4,430,409     4,964,001  

OPI International Ltd.

 

Oil and Gas

                   

12% Secured Debt (Maturity—

  Construction                    

November 30, 2015)

  Services     8,700,000     8,537,285     8,537,285  

12% Secured Debt (Maturity—November 30, 2015)

        750,000     252,288     252,288  

Warrants (Fully diluted 8.0%)

              500,000     500,000  
                     

              9,289,573     9,289,573  

Schneider Sales Management, LLC

 

Sales Consulting and

                   

13% Secured Debt (Maturity—October 15, 2013)

  Training     3,367,542     3,289,127     1,000,000  

Warrants (Fully diluted 20.0%)

              45,000      
                     

              3,334,127     1,000,000  

Walden Smokey Point, Inc.

 

Specialty Transportation

                   

Common Stock (Fully diluted 12.6%)

              1,426,667     2,620,000  
                     

WorldCall, Inc.

 

Telecommunication/

                   

13% Secured Debt (Maturity—April 22, 2011)                

  Information Services     646,225     646,225     646,225  

Common Stock (Fully diluted 10.0%)

              296,631      
                     

              942,856     646,225  
                     

Subtotal Affiliate Investments

              65,650,789     80,206,804  
                     

F-89


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2010

Portfolio Company/Type of Investment(1)(2)
 
Industry
  Principal(6)   Cost(6)   Fair Value  

Non-Control/Non-Affiliate Investments(5)

                       

Affinity Videonet, Inc.

  Videoconferencing Services                    

9% Secured Debt (Maturity—December 31, 2012)

        500,000     490,000     490,000  

13% Secured Debt (Maturity—December 31, 2015)

        2,000,000     1,897,500     1,897,500  

13% current / 1% PIK Secured Debt (Maturity—December 31, 2015)

        2,000,000     1,995,652     1,995,652  

Warrants (Fully diluted 2.5%)

              62,500     62,500  
                     

              4,445,652     4,445,652  

Alon Refining Krotz Springs, Inc.(9)

 

Petroleum Products/

                   

13.5% Secured Debt (Maturity—October 15, 2014)                

  Refining     4,000,000     3,832,366     3,900,000  
                     

Bourland & Leverich Supply Co., LLC(9)

 

Distributor of Oil & Gas

                   

LIBOR Plus 8.0%, Current Coupon 11.25%, Secured

  Tubular Goods                    

Debt (Maturity—August 24, 2015)(8)

        4,443,750     4,236,574     4,554,847  
                     

Brand Connections, LLC

 

Venue-Based Marketing

                   

14% Secured Debt (Maturity—April 30, 2015)                

  and Media     7,312,500     7,151,303     7,151,303  
                     

Chef's Warehouse(9)

 

Specialty Food

                   

LIBOR Plus 9.0%, Current Coupon 11%, Secured Debt

  Distributor                    

(Maturity—April 24, 2014)(8)

        8,137,083     7,907,586     8,219,225  
                     

Fairway Group Acquisition(9)

 

Retail Grocery

                   

LIBOR plus 9.5%, Current Coupon 12%, Secured Debt (Maturity—October 1, 2014)(8)                

        4,950,008     4,827,316     4,968,818  
                     

Full Spectrum Holdings LLC(9)

 

Professional Services

                   

LIBOR Plus 3.0%, Current Coupon 10.75%, Secured Debt (Maturity—December 12, 2012)(8)

        1,523,341     1,301,663     1,301,663  

Warrants (Fully diluted 0.28%)

              412,523     412,523  
                     

              1,714,186     1,714,186  

Global Tel*Link Corporation(9)

 

Communications

                   

LIBOR Plus 11.25%, Current Coupon 13%, Secured                

  Technology                    

Debt (Maturity—May 10, 2017)(8)

        3,000,000     2,941,728     2,948,271  
                     

Hayden Acquisition, LLC

 

Manufacturer of Utility

                   

8% Secured Debt (Maturity—January 1, 2011)                 

  Structures     1,800,000     1,781,303     250,000  
                     

Hoffmaster Group, Inc.(9)

 

Manufacturer of Specialty

                   

LIBOR Plus 5.0%, Current Coupon 7%, Secured Debt

  Tabletop Products                    

(Maturity—June 13, 2016)(8)

        1,509,615     1,453,860     1,490,745  

13.5% Secured Debt (Maturity—June 3, 2017)

        5,000,000     4,881,278     4,787,500  
                     

              6,335,138     6,278,245  

Managed Healthcare(9)

 

Healthcare Products

                   

LIBOR plus 3.25% Secured Debt (Maturity—August 31, 2014)

        1,987,606     1,548,214     1,659,650  
                     

F-90


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2010

Portfolio Company/Type of Investment(1)(2)
 
Industry
  Principal(6)   Cost(6)   Fair Value  

Megapath Inc.(9)

 

Communications

                   

LIBOR plus 10%, Current Coupon 12%, Secured Debt

  Technology                    

(Maturity—November 4, 2015)(8)

        4,000,000     3,922,670     4,040,770  
                     

Miramax Film NY, LLC(9)

 

Motion Picture Producer

                   

LIBOR plus 6%, Current Coupon 7.75%, Secured Debt

  and Distributor                    

(Maturity—June 30, 2016)(8)

        3,000,000     2,940,000     2,940,000  

LIBOR plus 11%, Current Coupon 13%, Secured Debt (Maturity—December 30, 2016)(8)

        4,000,000     3,920,000     3,920,000  

Class B Units (Fully diluted 0.2%)

              500,000     500,000  
                     

              7,360,000     7,360,000  

Northland Cable Television, Inc.(9)

 

Cable Broadcasting

                   

LIBOR Plus 8.0% Secured Debt (Maturity—June 22, 2013)

        5,000,000     4,851,285     4,988,785  
                     

Pierre Foods, Inc.(9)

 

Foodservice Supplier

                   

Base plus 4.25%, Current Coupon 7.5%, Secured Debt (Maturity—September 30, 2016)(8)

        5,000,000     4,903,804     4,992,702  

Base plus 8.5%, Current Coupon 11.75%, Secured Debt (Maturity—September 29, 2017)(8)

        2,000,000     1,932,106     1,992,181  
                     

              6,835,910     6,984,883  

Rentech Energy Midwest Corporation(9)

 

Manufacturer of Fertilizer

                   

LIBOR plus 10%, Current Coupon 12.5%, Secured Debt (Maturity—July 29, 2014)(8)

        2,331,606     2,274,262     2,274,262  
                     

Shearer's Foods, Inc.(9)

 

Manufacturer of Food/

                   

12% Current / 3% PIK Secured Debt (Maturity—

  Snacks                    

March 21, 2016)

        4,092,707     3,999,396     4,154,098  
                     

Standard Steel, LLC(9)

 

Manufacturer of Steel

                   

12% Secured Debt (Maturity—April 30, 2015)                

  Wheels and Axles     3,000,000     2,902,821     2,988,750  
                     

Support Systems Homes, Inc.

 

Manages Substance Abuse

                   

15% Secured Debt (Maturity—August 21, 2018)

  Treatment Centers     576,600     576,600     576,600  
                     

Technical Innovations, LLC

 

Manufacturer of Specialty

                   

13.5% Secured Debt (Maturity—January 16, 2015)                

  Cutting Tools and Punches     2,950,000     2,919,118     2,950,000  
                     

The Tennis Channel, Inc.

 

Sports Broadcasting/

                   

LIBOR plus 6% / 4% PIK, Current Coupon 10% / 4%

  Media                    

PIK, Secured Debt (Maturity—January 1, 2013)(8)

        9,198,840     9,230,938     9,230,938  

Warrants (Fully diluted 0.10%)

              211,938     211,938  
                     

              9,442,876     9,442,876  

Other Non-Control/Non-Affiliate Investments(10)                

             
105,000
   
105,000
 
                     

Subtotal Non-Control/Non-Affiliate Investments                

             
91,911,304
   
91,956,221
 
                     

Main Street Capital Partners, LLC (Investment Manager)                

 

Asset Management

                   

100% of Membership Interests

              4,284,042     2,051,655  
                     

Total Portfolio Investments, December 31, 2010                

            $ 322,855,578   $ 348,811,074  
                     

F-91


Table of Contents


MAIN STREET CAPITAL CORPORATION

CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2010

Portfolio Company/Type of Investment(1)(2)
 
Industry
 
Principal(6)
  Cost(6)   Fair Value  

Marketable Securities and Idle Funds Investments

                       

AL Gulf Coast Terminals, LLC

  Investments in Secured and                    

LIBOR plus 5.0%, Current Coupon 6.75%, Secured Debt (Maturity—September 21, 2016)(8)

  Rated Debt Investments and Diversified Bond Funds   $ 6,919,997   $ 6,735,294   $ 6,746,997  

Aspen Dental Management, Inc.

                       

LIBOR plus 5.0%, Current Coupon 8.25%, Secured Debt (Maturity—October 13, 2016)(8)

        4,987,500     4,691,670     4,806,974  

ATI Acquisition I Corp.

                       

LIBOR plus 5.5%, Current Coupon 7.5%, Secured Debt (Maturity—September 14, 2016)(8)

        2,885,675     2,841,517     2,857,332  

Booz Allen Hamilton Inc.

                       

13% Debt (Maturity—July 5, 2016)

        1,716,044     1,781,625     1,765,380  

Centerplate, Inc.

                       

LIBOR plus 7.5% Secured Debt (Maturity—September 16, 2016)

        3,000,000     2,914,206     2,988,750  

CHG Companies, Inc.

                       

LIBOR plus 5.5%, Current Coupon 7.25%, Secured Debt (Maturity—October 14, 2016)(8)

        1,975,000     1,937,558     1,996,754  

Excelitas Technologies Corp.

                       

LIBOR plus 5.75%, Current Coupon 7.25%, Secured Debt (Maturity—December 2, 2016)(8)

        3,000,000     2,971,096     3,020,771  

Gentiva Health Services, Inc.

                       

LIBOR plus 5.0%, Current Coupon 6.75%, Secured Debt (Maturity—September 20, 2016)(8)

        2,981,250     2,975,289     3,014,789  

Henniges Automotive Holdings, Inc.

                       

LIBOR plus 10.0%, Current Coupon 12%, Secured Debt (Maturity—December 7, 2016)(8)

        3,000,000     2,941,308     2,941,308  

MLM Holdings, Inc.

                       

LIBOR plus 5.25%, Current Coupon 7%, Secured Debt (Maturity—December 1, 2016)(8)

        6,982,500     6,879,686     6,897,406  

MultiPlan, Inc.

                       

LIBOR plus 4.75%, Current Coupon 6.5%, Secured Debt (Maturity—August 26, 2017)(8)

        3,876,923     3,863,709     3,913,269  

Rite Aid Corporation

                       

7.5% Bond (Maturity—March 1, 2017)            

        2,000,000     1,889,335     1,845,874  

SonicWALL, Inc.

                       

LIBOR plus 6.25%, Current Coupon 8.25%, Secured Debt (Maturity—August 1, 2016)(8)

        1,794,355     1,797,374     1,807,813  

Terex Corporation

                       

7.4% Bond (Maturity—January 15, 2014)            

        2,000,000     2,023,301     2,023,301  

Visant Corporation

                       

LIBOR plus 5.25%, Current Coupon 7%, Secured Debt (Maturity—December 28, 2016)(8)

        4,987,500     4,891,963     5,057,003  

Vision Solutions, Inc.

                       

LIBOR plus 6.0%, Current Coupon 7.75%, Secured Debt (Maturity—July 23, 2016)(8)

        1,925,000     1,612,010     1,631,338  

Western Refining Inc.

                       

LIBOR plus 7.5%, Current Coupon 10.75%, Secured Debt (Maturity—August 1, 2014)(8)

        1,708,883     1,672,628     1,736,654  

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CONSOLIDATED SCHEDULE OF INVESTMENTS (Continued)

December 31, 2010

Portfolio Company/Type of Investment(1)(2)
 
Industry
 
Principal(6)
  Cost(6)   Fair Value  

Marketable Securities and Idle Funds Investments

                       

Wyle Services Corporation

  Investments in Secured and                    

LIBOR plus 4.0%, Current Coupon 6%, Secured Debt (Maturity—September 10, 2016)(8)

  Rated Debt Investments, Certificates of Deposit, and Diversified Bond Funds     3,989,992     3,964,645     4,003,290  

Yankee Cable Acquisition, LLC

                       

LIBOR plus 4.5%, Current Coupon 6.5%, Secured Debt (Maturity—August 26, 2016)(8)                

        3,990,000     3,933,213     3,990,000  

Other Marketable Securities and Idle Funds Investments(11)

       
5,529,450
   
5,653,480
   
5,707,855
 
                     

Subtotal Marketable Securities and Idle Funds Investments

              67,970,907     68,752,858  
                     

Total Investments, December 31, 2010

            $ 390,826,485   $ 417,563,932  
                     

(1)
Debt investments are generally income producing. Equity and warrants are non-income producing, unless otherwise noted.

(2)
See Note C for summary geographic location of portfolio companies.

(3)
Controlled investments are defined by the Investment Company Act of 1940, as amended ("1940 Act") as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained.

(4)
Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% of the voting securities are owned and the investments are not classified as Controlled investments.

(5)
Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control Investments nor Affiliate Investments.

(6)
Principal is net of prepayments. Cost is net of prepayments and accumulated unearned income.

(7)
Income producing through dividends or distributions.

(8)
Index based floating interest rate subject to contractual minimum interest rates.

(9)
Private placement portfolio investment.

(10)
Other Non-Control/Non-Affiliate investments consist of equity investments in lower middle market companies.

(11)
Other Marketable Securities and Idle Funds Investments consist of investments in secured and rated debt investments and diversified bond funds.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

NOTE A—ORGANIZATION AND BASIS OF PRESENTATION

1.     Organization

        Main Street Capital Corporation ("MSCC") was formed on March 9, 2007 for the purpose of (i) acquiring 100% of the equity interests of Main Street Mezzanine Fund, LP ("MSMF") and its general partner, Main Street Mezzanine Management, LLC ("MSMF GP"), (ii) acquiring 100% of the equity interests of Main Street Capital Partners, LLC (the "Investment Manager"), (iii) raising capital in an initial public offering, which was completed in October 2007 (the "IPO"), and (iv) thereafter operating as an internally managed business development company ("BDC") under the Investment Company Act of 1940, as amended (the "1940 Act"). MSMF is licensed as a Small Business Investment Company ("SBIC") by the United States Small Business Administration ("SBA") and the Investment Manager acts as MSMF's manager and investment adviser. Because the Investment Manager, which employs all of the executive officers and other employees of MSCC, is wholly owned by MSCC, MSCC does not pay any external investment advisory fees but instead incurs the operating costs associated with employing investment and portfolio management professionals through the Investment Manager. The IPO and related transactions discussed above were consummated in October 2007 and are collectively termed the "Formation Transactions."

        On January 7, 2010, MSCC consummated transactions (the "Exchange Offer") to exchange 1,239,695 shares of its common stock for approximately 88% of the total dollar value of the limited partner interests in Main Street Capital II, LP ("MSC II" and, together with MSMF, the "Funds"). Pursuant to the terms of the Exchange Offer, 100% of the membership interests in the general partner of MSC II, Main Street Capital II GP, LLC ("MSC II GP"), were also transferred to MSCC for no consideration. MSC II commenced operations in January 2006, is an investment fund that operates as an SBIC and is also managed by the Investment Manager. The Exchange Offer and related transactions, including the transfer of the MSC II GP interests, are collectively termed the "Exchange Offer Transactions" (see Note J).

        MSCC has elected to be treated for federal income tax purposes as a regulated investment company ("RIC") under Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"). As a result, MSCC generally will not pay corporate-level federal income taxes on any net ordinary income or capital gains that it distributes to its stockholders as dividends.

        MSCC has direct or indirect subsidiaries that have elected to be taxable entities (the "Taxable Subsidiaries"). The primary purpose of these entities is to hold certain investments that generate "pass through" income for tax purposes. The Taxable Subsidiaries are each taxed at their normal corporate tax rates based on their taxable income.

        Unless otherwise noted or the context otherwise indicates, the terms "we," "us," "our" and "Main Street" refer to MSCC and its subsidiaries, including the Funds and the Taxable Subsidiaries.

2.     Basis of Presentation

        Main Street's financial statements are prepared in accordance with generally accepted accounting principles in the United States of America ("U.S. GAAP"). For the years ended December 31, 2011 and 2010, Main Street's consolidated financial statements include the accounts of MSCC and its consolidated subsidiaries, including the Funds. Portfolio investments, as used herein, refers to all of Main Street's investments in lower middle market ("LMM") portfolio companies, private placement portfolio investments, and the investment in the Investment Manager and excludes all "Marketable

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE A—ORGANIZATION AND BASIS OF PRESENTATION (Continued)

securities and idle funds investments." The Investment Manager is accounted for as a portfolio investment (see Note D). "Marketable securities and idle funds investments" are classified as financial instruments and are reported separately on Main Street's Consolidated Balance Sheets and Consolidated Schedule of Investments due to the nature of such investments (see Note B.13). Main Street's results of operations and cash flows for the years ended December 31, 2011, 2010, and 2009, and financial position as of December 31, 2011 and 2010, are presented on a consolidated basis. The effects of all intercompany transactions between Main Street and its consolidated subsidiaries have been eliminated in consolidation. Certain reclassifications have been made to prior period balances to conform with the current financial statement presentation.

        Under the investment company rules and regulations pursuant to Article 6 of Regulation S-X and the Audit and Accounting Guide for Investment Companies issued by the American Institute of Certified Public Accountants (the "AICPA Guide"), Main Street is precluded from consolidating portfolio company investments, including those in which it has a controlling interest, unless the portfolio company is another investment company. An exception to this general principle in the AICPA Guide occurs if Main Street owns a controlled operating company that provides all or substantially all of its services directly to Main Street or to an investment company of Main Street. None of the investments made by Main Street qualify for this exception. Therefore, Main Street's portfolio investments are carried on the balance sheet at fair value, as discussed further in Note B, with any adjustments to fair value recognized as "Net Change in Unrealized Appreciation (Depreciation)" on the Statement of Operations until the investment is realized, usually upon exit, resulting in any gain or loss on exit being recognized as a "Net Realized Gain (Loss) from Investments."

        Main Street classifies its portfolio investments in accordance with the requirements of the 1940 Act. Under the 1940 Act, (a) "Control Investments" are defined as investments in which Main Street owns more than 25% of the voting securities or has rights to maintain greater than 50% of the board representation, (b) "Affiliate Investments" are defined as investments in which Main Street owns between 5% and 25% of the voting securities and does not have rights to maintain greater than 50% of the board representation, and (c) "Non-Control/Non-Affiliate Investments" are defined as investments that are neither Control Investments nor Affiliate Investments. The line item on Main Street's Consolidated Balance Sheets entitled "Investment in affiliated Investment Manager" represents Main Street's investment in a wholly owned investment manager subsidiary that is accounted for as a portfolio investment.

NOTE B—SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

1.     Valuation of Portfolio Investments

        Main Street accounts for its LMM portfolio investments, private placement portfolio investments, and the investment in the Investment Manager at fair value. As a result, Main Street follows the provisions of the Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("Codification" or "ASC") 820, Fair Value Measurements and Disclosures ("ASC 820"). ASC 820 defines fair value, establishes a framework for measuring fair value, establishes a fair value hierarchy based on the quality of inputs used to measure fair value and enhances disclosure requirements for fair value measurements. ASC 820 requires Main Street to assume that the portfolio investment is to be sold in

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE B—SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

the principal market to independent market participants, or in the absence of a principal market, in the most advantageous market, which may be a hypothetical market. Market participants are defined as buyers and sellers in the principal market that are independent, knowledgeable, and willing and able to transact. With the adoption of this statement, Main Street incorporated the income approach to estimate the fair value of its LMM portfolio debt investments using a yield-to-maturity model.

        Main Street's portfolio strategy calls for it to invest primarily in illiquid securities issued by private, LMM companies as well as privately placed debt securities issued by middle market companies that are generally larger in size than the LMM companies. These portfolio investments may be subject to restrictions on resale. LMM companies generally have no established trading market while privately placed debt securities generally have established markets that are not active. Main Street determines in good faith the fair value of its portfolio investments pursuant to a valuation policy in accordance with ASC 820 and a valuation process approved by its Board of Directors and in accordance with the 1940 Act. For LMM investments, Main Street reviews external events, including private mergers, sales and acquisitions involving comparable companies, and includes these events in the valuation process. For private placement portfolio investments, Main Street generally uses observable inputs such as quoted prices in the valuation process. Main Street's valuation policy and process are intended to provide a consistent basis for determining the fair value of the portfolio.

        For valuation purposes, "control" investments are composed of equity and debt securities for which Main Street has a controlling interest in the portfolio company or has the ability to nominate a majority of the portfolio company's board of directors. Market quotations are generally not readily available for Main Street's control investments. As a result, Main Street determines the fair value of control investments using a combination of market and income approaches. Under the market approach, Main Street will typically use the enterprise value methodology to determine the fair value of these investments. The enterprise value is the fair value at which an enterprise could be sold in a transaction between two willing parties, other than through a forced or liquidation sale. Typically, private companies are bought and sold based on multiples of earnings before interest, taxes, depreciation and amortization ("EBITDA"), cash flows, net income, revenues, or in limited cases, book value. There is no single methodology for estimating enterprise value. For any one portfolio company, enterprise value is generally described as a range of values from which a single estimate of enterprise value is derived. In estimating the enterprise value of a portfolio company, Main Street analyzes various factors, including the portfolio company's historical and projected financial results. Main Street allocates the enterprise value to investments in order of the legal priority of the investments. Main Street will also use the income approach to determine the fair value of these securities, based on projections of the discounted future free cash flows that the portfolio company or the debt security will likely generate. The valuation approaches for Main Street's control investments estimate the value of the investment if Main Street were to sell, or exit, the investment. In addition, these valuation approaches consider the value associated with Main Street's ability to control the capital structure of the portfolio company, as well as the timing of a potential exit.

        For valuation purposes, "non-control" LMM portfolio investments are composed of debt and equity securities for which Main Street does not have a controlling interest in the portfolio company, or the ability to nominate a majority of the portfolio company's board of directors. Market quotations for non-control LMM portfolio investments are generally not readily available. For non-control LMM portfolio investments, Main Street uses a combination of the market and income approaches to value its equity investments and the income approach to value its debt instruments. For non-control

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE B—SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

LMM debt investments, Main Street determines the fair value primarily using a yield approach that analyzes the discounted cash flows of interest and principal for the debt security, as set forth in the associated loan agreements, as well as the financial position and credit risk of each of these portfolio investments. Main Street's estimate of the expected repayment date of an LMM debt security is generally the legal maturity date of the instrument, as Main Street generally intends to hold its loans to maturity. The yield analysis considers changes in leverage levels, credit quality, portfolio company performance and other factors. Main Street will use the value determined by the yield analysis as the fair value for that security; however, because of Main Street's general intent to hold its loans to maturity, the fair value will not exceed the face amount of the LMM debt security. A change in the assumptions that Main Street uses to estimate the fair value of its LMM debt securities using the yield analysis could have a material impact on the determination of fair value. If there is deterioration in credit quality or an LMM debt security is in workout status, Main Street may consider other factors in determining the fair value of the LMM debt security, including the value attributable to the debt security from the enterprise value of the portfolio company or the proceeds that would be received in a liquidation analysis.

        Pursuant to its internal valuation process and the requirements under the 1940 Act, Main Street performs valuation procedures on each LMM portfolio company once a quarter. In addition to its internal valuation process, in arriving at estimates of fair value for portfolio companies, Main Street, among other things, consults with a nationally recognized independent advisor. The nationally recognized independent advisor is generally consulted relative to each LMM portfolio investment at least once in every calendar year, and for new LMM portfolio companies, at least once in the twelve-month period subsequent to the initial investment. In certain instances, Main Street may determine that it is not cost-effective, and as a result is not in its stockholders' best interest, to consult with the nationally recognized independent advisor on one or more LMM portfolio companies. Such instances include, but are not limited to, situations where the fair value of Main Street's investment in an LMM portfolio company is determined to be insignificant relative to the total investment portfolio. Main Street consulted with its independent advisor in arriving at Main Street's determination of fair value on a total of 42 portfolio companies, including 41 LMM portfolio companies and our affiliated Investment Manager, for the year ended December 31, 2011, representing approximately 81% of the total LMM portfolio and investment in the affiliated Investment Manager at fair value as of December 31, 2011.

        For valuation purposes, all of Main Street's private placement portfolio investments are non-control investments and are composed of securities for which Main Street does not have a controlling interest in the portfolio company, or the ability to nominate a majority of the portfolio company's board of directors. Main Street primarily uses observable inputs to determine the fair value of these investments through obtaining third party quotes or other independent pricing.

        Due to the inherent uncertainty in the valuation process, Main Street's determination of fair value may differ materially from the values that would have been used had a ready market for the securities existed. In addition, changes in the market environment, portfolio company performance and other events that may occur over the lives of the investments may cause the gains or losses ultimately realized on these investments to be materially different than the valuations currently assigned. Main Street determines the fair value of each individual investment and records changes in fair value as unrealized appreciation or depreciation.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE B—SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

        Main Street uses a standard internal portfolio investment rating system in connection with its investment oversight, portfolio management/analysis and investment valuation procedures. This system takes into account both quantitative and qualitative factors of the portfolio company and the investments held therein.

        The Board of Directors of Main Street has the final responsibility for reviewing and approving, in good faith, Main Street's determination of the fair value for its portfolio investments consistent with the 1940 Act requirements. Main Street believes its portfolio investments as of December 31, 2011 and 2010, approximate fair value as of those dates based on the market in which Main Street operates and other conditions in existence at those reporting periods.

2.     Use of Estimates

        The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the period. Actual results may differ from these estimates under different conditions or assumptions. Additionally, as explained above, the financial statements include portfolio investments whose values have been estimated by Main Street with the oversight, review and approval by Main Street's Board of Directors in the absence of readily ascertainable market values. Because of the inherent uncertainty of the portfolio investment valuations, those estimated values may differ significantly from the values that would have been used had a readily available market for the investments existed, and it is reasonably possible that the differences could be material.

3.     Cash and Cash Equivalents

        Cash and cash equivalents consist of highly liquid investments with an original maturity of three months or less at the date of purchase. Cash and cash equivalents are carried at cost, which approximates fair value.

4.     Marketable Securities and Idle Funds Investments

        Marketable securities and idle funds investments include investments in intermediate-term secured debt and independently rated debt investments. See the "Consolidated Schedule of Investments" for more information on marketable securities and idle funds investments.

5.     Interest and Dividend Income

        Interest and dividend income is recorded on the accrual basis to the extent amounts are expected to be collected. Dividend income is recorded as dividends are declared or at the point an obligation exists for the portfolio company to make a distribution. In accordance with Main Street's valuation policy, accrued interest and dividend income is evaluated periodically for collectability. When a loan or debt security becomes 90 days or more past due, and if Main Street otherwise does not expect the debtor to be able to service all of its debt or other obligations, Main Street will generally place the loan or debt security on non-accrual status and cease recognizing interest income on that loan or debt security until the borrower has demonstrated the ability and intent to pay contractual amounts due. If a loan or debt security's status significantly improves regarding the debtor's ability to service the debt or

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE B—SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

other obligations, or if a loan or debt security is fully impaired, sold or written off, it will be removed from non-accrual status.

        Main Street holds debt and preferred equity instruments in its investment portfolio that contain payment-in-kind ("PIK") interest and cumulative dividend provisions. The PIK interest, computed at the contractual rate specified in each debt agreement, is periodically added to the principal balance of the debt and is recorded as interest income. Thus, the actual collection of this interest may be deferred until the time of debt principal repayment. Cumulative dividends are recorded as dividend income, and any dividends in arrears are added to the balance of the preferred equity investment. The actual collection of dividends in arrears may be deferred until such time as the preferred equity is redeemed. To maintain RIC tax treatment (as discussed below), these non-cash sources of income may need to be paid out to stockholders in the form of distributions, even though Main Street may not have collected the PIK interest and cumulative dividends in cash.

        As of December 31, 2011, Main Street had one investment on non-accrual status, which comprised approximately 0.05% of the total portfolio investments at fair value and 1.10% of the total portfolio investments at cost (or 0.04% and 0.88%, respectively with the inclusion of marketable securities and idle funds investments), in each case excluding the investment in the affiliated Investment Manager. As of December 31, 2010, Main Street had two investments on non-accrual status, which comprised approximately 2.6% of the total portfolio investments at fair value and 3.6% of the total portfolio investments at cost (or 2.2% and 3.0%, respectively with the inclusion of marketable securities and idle funds investments), in each case excluding the investment in the affiliated Investment Manager.

6.     Deferred Financing Costs

        Deferred financing costs include SBIC debenture commitment fees and SBIC debenture leverage fees which have been capitalized and which are amortized into interest expense over the term of the debenture agreement (10 years).

        Deferred financing costs also include costs related to our multi-year investment credit facility. These costs have been capitalized and are amortized into interest expense over their respective terms.

7.     Fee Income—Structuring and Advisory Services

        Main Street may periodically provide services, including structuring and advisory services, to its portfolio companies. For services that are separately identifiable and evidence exists to substantiate fair value, income is recognized as earned, which is generally when the investment or other applicable transaction closes. Fees received in connection with debt financing transactions for services that do not meet these criteria are treated as debt origination fees and are accreted into interest income over the life of the financing.

8.     Unearned Income—Debt Origination Fees and Original Issue Discount

        Main Street capitalizes upfront debt origination fees received in connection with financings and reflects such fees as unearned income netted against investments. Main Street will also capitalize and offset direct loan origination costs against the origination fees received. The unearned income from the fees, net of direct debt origination costs, is accreted into interest income based on the effective interest method over the life of the financing.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE B—SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

        In connection with its portfolio debt investments, Main Street sometimes receives nominal cost warrants ("nominal cost equity") that are valued as part of the negotiation process with the particular portfolio company. When Main Street receives nominal cost equity, Main Street allocates its cost basis in its investment between its debt securities and its nominal cost equity at the time of origination. Any discount recorded on a debt investment resulting from this allocation is reflected as unearned income, which is netted against the debt investment, and accreted into interest income based on the effective interest method over the life of the debt. The actual collection of this interest may be deferred until the time of debt principal repayment. To maintain RIC tax treatment (as discussed below), these non-cash sources of income may need to be paid out to stockholders in the form of distributions, even though Main Street may not have collected the interest income.

9.     Share-Based Compensation

        Main Street accounts for its share-based compensation plans using the fair value method, as prescribed by ASC 718, Compensation—Stock Compensation. Accordingly, for restricted stock awards, Main Street measures the grant date fair value based upon the market price of its common stock on the date of the grant and amortizes that fair value to share-based compensation expense over the requisite service period or vesting term.

10.   Income Taxes

        MSCC has elected and intends to continue to qualify for the tax treatment applicable to a RIC under the Code, and, among other things, intends to make the required distributions to its stockholders as specified therein. In order to qualify as a RIC, MSCC is required to timely distribute to its stockholders at least 90% of investment company taxable income, as defined by the Code, each year. Depending on the level of taxable income earned in a tax year, MSCC may choose to carry forward taxable income in excess of current year distributions into the next tax year and pay a 4% excise tax on such income. Any such carryover taxable income must be distributed through a dividend declared prior to filing the final tax return related to the year which generated such taxable income.

        The Taxable Subsidiaries hold certain portfolio investments of Main Street. The Taxable Subsidiaries are consolidated for U.S. GAAP reporting purposes, and the portfolio investments held by them are included in the consolidated financial statements. The Taxable Subsidiaries permit Main Street to hold equity investments in portfolio companies which are "pass through" entities for tax purposes in order to comply with the "source income" requirements contained in the RIC tax provisions. The Taxable Subsidiaries are not consolidated with Main Street for income tax purposes and may generate income tax expense, or benefit, as a result of their ownership of certain portfolio investments. This income tax expense, or benefit, is reflected in the consolidated statement of operations.

        The Taxable Subsidiaries use the liability method in accounting for income taxes. Deferred tax assets and liabilities are recorded for temporary differences between the tax basis of assets and liabilities and their reported amounts in the financial statements, using statutory tax rates in effect for the year in which the temporary differences are expected to reverse. A valuation allowance is provided against deferred tax assets when it is more likely than not that some portion or all of the deferred tax asset will not be realized.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE B—SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

        Taxable income generally differs from net income for financial reporting purposes due to temporary and permanent differences in the recognition of income and expenses. Taxable income generally excludes net unrealized appreciation or depreciation, as investment gains or losses are not included in taxable income until they are realized.

11.   Net Realized Gains or Losses from Investments and Net Change in Unrealized Appreciation or Depreciation from Investments

        Realized gains or losses are measured by the difference between the net proceeds from the sale or redemption of an investment and the cost basis of the investment, without regard to unrealized appreciation or depreciation previously recognized, and includes investments written-off during the period net of recoveries and realized gains or losses from in-kind redemptions. Net change in unrealized appreciation or depreciation from investments reflects the net change in the valuation of the investment portfolio and financial instruments and the reclassification of any prior period unrealized appreciation or depreciation on exited investments.

12.   Concentration of Credit Risks

        Main Street places its cash in financial institutions, and, at times, such balances may be in excess of the federally insured limit.

13.   Fair Value of Financial Instruments

        Fair value estimates are made at discrete points in time based on relevant information. These estimates may be subjective in nature and involve uncertainties and matters of significant judgment and, therefore, cannot be determined with precision. Main Street believes that the carrying amounts of its financial instruments, consisting of cash and cash equivalents, marketable securities, receivables, accounts payable and accrued liabilities approximate the fair values of such items. Marketable securities and idle funds investments may include investments in certificates of deposit, U.S. government agency securities, intermediate-term secured debt, independently rated debt investments, and diversified bond funds. The fair value determination for these investments under the provisions of ASC 820 primarily consists of Level 2 observable inputs.

        The SBIC debentures provide a strategic advantage due to their flexible structure, long-term duration, and low fixed interest rates. As part of the Exchange Offer Transactions, Main Street elected the fair value option under ASC 825, Financial Instruments ("ASC 825") relating to accounting for debt obligations at their fair value, for those SBIC debentures acquired (the "Acquired Debentures") as part of the acquisition accounting related to the Exchange Offer. In order to provide for a more consistent basis of presentation, Main Street has elected and will continue to elect the fair value option for SBIC debentures issued by MSC II subsequent to the Exchange Offer. Once the fair value option is elected for a given SBIC debenture, the deferred loan costs associated with the debenture are fully expensed in the current period to "Net Change in Unrealized Appreciation (Depreciation)—SBIC debentures" as part of the fair value adjustment. Interest incurred in connection with SBIC debentures which are valued at fair value is expensed.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE B—SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

14.   Earnings per Share

        Basic and diluted per share calculations are computed utilizing the weighted average number of shares of common stock outstanding for the period. Main Street adopted the amended guidance in ASC 260, Earnings Per Share, and based on the guidance, determined that unvested shares of restricted stock are participating securities and should therefore be included in the basic earnings per share calculation. As a result, for all periods presented, there is no difference between diluted earnings per share and basic earnings per share amounts.

        As a result of the Exchange Offer Transactions in January 2010, the net earnings attributable to the remaining externally owned noncontrolling interest in MSC II are excluded from all per share amounts presented, and the per share amounts only reflect the net earnings attributable to Main Street's ownership interest in MSC II. The following table provides a reconciliation of Net Investment Income and Net Realized Income excluding amounts related to the remaining noncontrolling interest in MSC II for the years ended December 31, 2011 and 2010.

 
  Years Ended December 31,  
 
  2011   2010  

Net Investment Income

  $ 39,277,104   $ 19,260,652  

Noncontrolling interest share of Net Investment Income

    (765,954 )   (291,265 )
           

Net Investment Income attributable to common stock

    38,511,150     18,969,387  

Total net realized gain (loss) from investments

   
2,638,459
   
(2,879,663

)

Noncontrolling interest share of net realized (gain) loss from investments

    (91,332 )   41,085  
           

Net Realized Income attributable to common stock

  $ 41,058,277   $ 16,130,809  
           

Net Investment Income per share—

             

Basic and diluted

  $ 1.69   $ 1.16  
           

Net Realized Income per share—

             

Basic and diluted

  $ 1.80   $ 0.99  
           

Weighted average shares outstanding—

             

Basic and diluted

    22,850,299     16,292,846  
           

15.   Recently Issued Accounting Standards

        In May 2011, the FASB issued Accounting Standards Update ("ASU") 2011-04, Fair Value Measurements (Topic 820), Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs ("ASU 2011-04"). ASU 2011-04 results in common fair value measurement and disclosure requirements in U.S. GAAP and IFRSs. ASU 2011-04 is effective for interim and annual reporting periods beginning after December 15, 2011. The adoption of ASU 2011-04 is not expected to have a significant impact on Main Street's financial condition and results of operations.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE B—SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Continued)

        In February 2011, the FASB issued ASU 2011-02, Receivables (Topic 310): A Creditor's Determination of Whether a Restructuring is a Troubled Debt Restructuring ("ASU 2011-02"). ASU 2011-02 clarifies which loan modifications constitute troubled debt restructurings. It is intended to assist creditors in determining whether a modification of the terms of a receivable meets the criteria to be considered a troubled debt restructuring, both for purposes of recording an impairment loss and for disclosure of troubled debt restructurings. In evaluating whether a restructuring constitutes a troubled debt restructuring, a creditor must separately conclude that both of the following exist: (a) the restructuring constitutes a concession; and (b) the debtor is experiencing financial difficulties. ASU 2011-02 provides guidance to clarify whether the creditor has granted a concession and whether a debtor is experiencing financial difficulties. The new guidance is effective for interim and annual periods beginning on or after June 15, 2011, and applies retrospectively to restructurings occurring on or after the beginning of the fiscal year of adoption. The adoption of ASU 2011-02 did not have a significant impact on Main Street's financial condition and results of operations.

        In January 2010, the FASB issued ASU 2010-06, Fair Value Measurements and Disclosures (Topic 820), Improving Disclosures About Fair Value Measurements ("ASU 2010-06"). ASU 2010-06 adds new requirements for disclosures about transfers into and out of Level 1 and 2 and separate disclosures about purchases, sales, issuances and settlements relating to Level 3 measurements. It also clarifies existing fair value disclosures about the level of disaggregation, inputs and valuation techniques. ASU 2010-06 is effective for interim and annual reporting periods beginning after December 15, 2009, except for the disclosures about purchases, sales, issuances and settlements in the roll forward of activity in Level 3 fair value measurements. Those disclosures are effective for fiscal years beginning after December 15, 2010. The adoption of ASU 2010-06 did not have a significant impact on Main Street's financial condition and results of operations.

NOTE C—FAIR VALUE HIERARCHY FOR INVESTMENTS AND DEBENTURES

        ASC 820 defines fair value, establishes a framework for measuring fair value, establishes a fair value hierarchy based on the quality of inputs used to measure fair value, and enhances disclosure requirements for fair value measurements. Main Street accounts for its investments at fair value.

Fair Value Hierarchy

        In accordance with ASC 820, Main Street has categorized its investments based on the priority of the inputs to the valuation technique, into a three-level fair value hierarchy. The fair value hierarchy gives the highest priority to quoted prices in active markets for identical investments (Level 1) and the lowest priority to unobservable inputs (Level 3).

        Investments recorded on Main Street's balance sheet are categorized based on the inputs to the valuation techniques as follows:

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE C—FAIR VALUE HIERARCHY FOR INVESTMENTS AND DEBENTURES (Continued)

        As required by ASC 820, when the inputs used to measure fair value fall within different levels of the hierarchy, the level within which the fair value measurement is categorized is based on the lowest level input that is significant to the fair value measurement in its entirety. For example, a Level 3 fair value measurement may include inputs that are observable (Levels 1 and 2) and unobservable (Level 3). Therefore, gains and losses for such investments categorized within the Level 3 table below may include changes in fair value that are attributable to both observable inputs (Levels 1 and 2) and unobservable inputs (Level 3). Main Street conducts reviews of fair value hierarchy classifications on a quarterly basis. Changes in the observability of valuation inputs may result in a reclassification for certain investments.

        As of December 31, 2011 and 2010, Main Street's private placement portfolio investments and marketable securities and idle funds investments consisted primarily of investments in secured and unsecured debt investments and independently rated debt investments. The fair value determination for these investments primarily consisted of observable inputs in non-active markets. As a result, all of Main Street's private placement portfolio investments and marketable securities and idle funds investments were categorized as Level 2 as of December 31, 2011 and 2010.

        As of December 31, 2011 and 2010, all of Main Street's LMM portfolio investments consisted of illiquid securities issued by private companies. The fair value determination for these investments primarily consisted of unobservable inputs. As a result, substantially all of Main Street's LMM portfolio investments were categorized as Level 3. The fair value determination of each LMM portfolio investment required one or more of the following unobservable inputs:

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE C—FAIR VALUE HIERARCHY FOR INVESTMENTS AND DEBENTURES (Continued)

        As of December 31, 2011 and 2010, the fair value determination for the SBIC debentures recorded at fair value primarily consisted of unobservable inputs. As a result, the SBIC debentures which are recorded at fair value were categorized as Level 3. Main Street determines the fair value of these instruments primarily using a yield approach that analyzes the discounted cash flows of interest and principal for each SBIC debenture recorded at fair value based on estimated market interest rates for debt instruments of similar structure, terms, and maturity. Main Street's estimate of the expected repayment date of principal for each SBIC debenture recorded at fair value is the legal maturity date of the instrument, as Main Street generally does not intend to repay its SBIC debentures prior to maturity.

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE C—FAIR VALUE HIERARCHY FOR INVESTMENTS AND DEBENTURES (Continued)

        The following table provides a summary of changes in fair value of Main Street's Level 3 portfolio investments for the year ended December 31, 2011:

Type of
Investment
  December 31, 2010
Fair Value
  Accretion of
Unearned Income
  Redemptions/
Repayments/
Exits(1)
  New
Investments(1)
  Net
Changes from
Unrealized
to Realized
  Net
Unrealized
Appreciation
(Depreciation)
  December 31, 2011
Fair Value
 

Debt

  $ 183,894,069   $ 3,316,254   $ (39,568,351 ) $ 111,578,113   $   $ 969,868   $ 260,189,953  

Equity

    61,201,721         (500,000 )   26,251,652     (396,898 )   27,363,097     113,919,572  

Equity warrants

    25,080,963         (610,010 )   6,686,357     (430,000 )   12,541,606     43,268,916  

Investment Manager

    2,051,655                     (182,413 )   1,869,242  
                               

  $ 272,228,408   $ 3,316,254   $ (40,678,361 ) $ 144,516,122   $ (826,898 ) $ 40,692,158   $ 419,247,683  
                               

(1)
Includes the impact of non-cash conversions

        The following table provides a summary of changes in fair value of the Level 3 SBIC Debentures recorded at fair value for the year ended December 31, 2011:

Type of
Instrument
  December 31, 2010
Fair Value
  Repayments   New SBIC
Debentures
  Net
Unrealized
(Appreciation)
Depreciation
  December 31, 2011
Fair Value
 

SBIC Debentures at fair value

  $ 70,557,975   $   $   $ 6,328,953   $ 76,886,928  
                       

        At December 31, 2011 and 2010, Main Street's investments and SBIC Debentures at fair value were categorized as follows in the fair value hierarchy for ASC 820 purposes:

 
   
  Fair Value Measurements  
At December 31, 2011
  Fair Value   Quoted Prices in
Active Markets for
Identical Assets
(Level 1)
  Significant Other
Observable Inputs
(Level 2)
  Significant
Unobservable
Inputs
(Level 3)
 

LMM portfolio investments

  $ 429,064,270   $   $ 11,685,829   $ 417,378,441  

Private placement portfolio investments

    132,945,941         132,945,941      

Investment in affiliated Investment Manager

    1,869,242             1,869,242  
                   

Total portfolio investments

    563,879,453         144,631,770     419,247,683  

Marketable securities and idle funds investments

    120,455,599         120,455,599      
                   

Total investments

  $ 684,335,052   $   $ 265,087,369   $ 419,247,683  
                   

SBIC Debentures at fair value

  $ 76,886,928   $   $   $ 76,886,928  
                   

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE C—FAIR VALUE HIERARCHY FOR INVESTMENTS AND DEBENTURES (Continued)

 

 
   
  Fair Value Measurements  
At December 31, 2010
  Fair Value   Quoted Prices in
Active Markets for
Identical Assets
(Level 1)
  Significant Other
Observable Inputs
(Level 2)
  Significant
Unobservable
Inputs
(Level 3)
 

LMM portfolio investments

  $ 279,619,629   $   $ 9,442,876   $ 270,176,753  

Private placement portfolio investments

    67,139,790         67,139,790      

Investment in affiliated Investment Manager

    2,051,655             2,051,655  
                   

Total portfolio investments

    348,811,074         76,582,666     272,228,408  

Marketable securities and idle funds investments

    68,752,858         68,752,858      
                   

Total investments

  $ 417,563,932   $   $ 145,335,524   $ 272,228,408  
                   

SBIC Debentures at fair value

  $ 70,557,975   $   $   $ 70,557,975  
                   

        For the year ended December 31, 2011, there were no transfers within the three fair value hierarchy levels.

Portfolio Investment Composition

        Main Street's LMM portfolio investments principally consist of secured debt, equity warrants and direct equity investments in privately held, LMM companies. The LMM debt investments are secured by either a first or second lien on the assets of the portfolio company, primarily bear interest at fixed rates, and generally mature between five and seven years from the original investment date. In most LMM portfolio companies, Main Street also receives nominally priced equity warrants and/or makes direct equity investments, usually in connection with a debt investment.

        Main Street's private placement portfolio investments primarily consist of direct or secondary purchases of interest-bearing debt securities in companies that are generally larger in size than the LMM companies included in Main Street's LMM portfolio. Main Street's privately placed portfolio debt investments are generally secured by either a first or second priority lien on the assets of the company and have an expected duration of between three and four years.

        Investment income, consisting of interest, dividends and fees, can fluctuate dramatically due to various factors, including the level of new investment activity, repayment of a debt investment or sale of an equity interest. Investment income in any given year could be highly concentrated among several portfolio companies. For the year ended December 31, 2011, Main Street did not record investment income from any single LMM portfolio company in excess of 10% of total LMM investment income, and Main Street did not record investment income from any single private placement portfolio company in excess of 10% of total private placement investment income. For the year ended December 31, 2010, Main Street did not record investment income from any single portfolio company in excess of 10% of total investment income.

        As of December 31, 2011, Main Street had debt and equity investments in 54 LMM portfolio companies with an aggregate fair value of $429.1 million, with a total cost basis of approximately

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE C—FAIR VALUE HIERARCHY FOR INVESTMENTS AND DEBENTURES (Continued)

$362.4 million, and a weighted average annual effective yield on its LMM debt investments of approximately 14.8%. Approximately 75% of Main Street's total LMM portfolio investments at cost were in the form of debt investments and 93% of such debt investments at cost were secured by first priority liens on the assets of Main Street's LMM portfolio companies as of December 31, 2011. At December 31, 2011, Main Street had equity ownership in approximately 94% of its LMM portfolio companies and the average fully diluted equity ownership in those portfolio companies was approximately 34%. As of December 31, 2010, Main Street had debt and equity investments in 44 LMM portfolio companies with an aggregate fair value of $279.6 million with a total cost basis of approximately $253.0 million and a weighted average annual effective yield on its LMM debt investments of approximately 14.5%. The weighted average annual yields were computed using the effective interest rates for all debt investments at December 31, 2011 and 2010, including amortization of deferred debt origination fees and accretion of original issue discount but excluding liquidation fees payable upon repayment and any debt investments on non-accrual status.

        As of December 31, 2011, Main Street had privately placed portfolio investments in 27 companies collectively totaling approximately $132.9 million in fair value with a total cost basis of approximately $133.4 million. The weighted average revenues for the 27 privately placed portfolio company investments were approximately $367 million. Main Street's privately placed portfolio investments are primarily in the form of debt investments and 69% of such debt investments at cost were secured by first priority liens on portfolio company assets as of December 31, 2011. The weighted average annual effective yield on Main Street's privately placed portfolio debt investments was approximately 10.6% as of December 31, 2011. As of December 31, 2010, Main Street had privately placed portfolio investments in 16 companies collectively totaling approximately $67.1 million in fair value with a total cost basis of approximately $65.6 million. The weighted average revenues for the 16 privately placed portfolio company investments were approximately $352 million. The weighted average annual effective yield on Main Street's privately placed portfolio debt investments was approximately 12.5% as of December 31, 2010. The weighted average annual yields were computed using the effective interest rates for all debt investments at December 31, 2011 and December 31, 2010, including amortization of deferred debt origination fees and accretion of original issue discount but excluding liquidation fees payable upon repayment.

        Summaries of the composition of Main Street's LMM investment portfolio, private placement investment portfolio, and total investment portfolio at cost and fair value as a percentage of the total LMM investment portfolio, the total private placement investment portfolio, and the total investment portfolio are shown in the following table:

 
  December 31, 2011   December 31, 2010  
Cost:
  LMM   Private
Placement
  Total   LMM   Private
Placement
  Total  

First lien debt

    69.5 %   68.2 %   69.1 %   70.6 %   70.2 %   70.5 %

Equity

    20.5 %   1.0 %   15.1 %   17.7 %   0.9 %   14.3 %

Second lien debt

    5.0 %   30.8 %   12.1 %   6.7 %   28.2 %   11.2 %

Equity warrants

    5.0 %   0.0 %   3.7 %   5.0 %   0.7 %   4.0 %
                           

    100.0 %   100.0 %   100.0 %   100.0 %   100.0 %   100.0 %
                           

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE C—FAIR VALUE HIERARCHY FOR INVESTMENTS AND DEBENTURES (Continued)

 

 
  December 31, 2011   December 31, 2010  
Fair Value:
  LMM   Private
Placement
  Total   LMM   Private
Placement
  Total  

First lien debt

    57.7 %   68.3 %   60.3 %   62.6 %   70.7 %   64.2 %

Equity

    29.0 %   1.0 %   22.2 %   21.9 %   0.9 %   17.8 %

Second lien debt

    4.4 %   30.7 %   10.8 %   6.5 %   27.8 %   10.6 %

Equity warrants

    8.9 %   0.0 %   6.7 %   9.0 %   0.6 %   7.4 %
                           

    100.0 %   100.0 %   100.0 %   100.0 %   100.0 %   100.0 %
                           

        The following table shows the LMM investment portfolio, private placement investment portfolio, and total investment portfolio composition by geographic region of the United States at cost and fair value as a percentage of the total LMM investment portfolio, the total private placement investment portfolio, and the total investment portfolio. The geographic composition is determined by the location of the corporate headquarters of the portfolio company.

 
  December 31, 2011   December 31, 2010  
Cost:
  LMM   Private
Placement
  Total   LMM   Private
Placement
  Total  

Southwest

    47.8 %   26.4 %   42.0 %   50.5 %   12.5 %   42.7 %

West

    31.9 %   17.0 %   27.7 %   29.3 %   13.4 %   26.1 %

Midwest

    9.0 %   21.3 %   12.4 %   7.2 %   29.6 %   11.8 %

Northeast

    3.9 %   24.0 %   9.4 %   6.0 %   40.0 %   13.0 %

Southeast

    7.4 %   11.3 %   8.5 %   7.0 %   4.5 %   6.4 %
                           

    100.0 %   100.0 %   100.0 %   100.0 %   100.0 %   100.0 %
                           

 

 
  December 31, 2011   December 31, 2010  
Fair Value:
  LMM   Private
Placement
  Total   LMM   Private
Placement
  Total  

Southwest

    52.1 %   25.9 %   45.7 %   51.8 %   12.7 %   44.2 %

West

    28.9 %   17.0 %   26.0 %   28.4 %   13.4 %   25.5 %

Midwest

    8.7 %   21.5 %   11.8 %   7.2 %   29.3 %   11.5 %

Northeast

    3.9 %   24.2 %   8.8 %   6.2 %   40.1 %   12.8 %

Southeast

    6.4 %   11.4 %   7.7 %   6.4 %   4.5 %   6.0 %
                           

    100.0 %   100.0 %   100.0 %   100.0 %   100.0 %   100.0 %
                           

        Main Street's LMM and private placement portfolio investments are in companies conducting business in a variety of industries. Set forth below are tables showing the composition of Main Street's

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE C—FAIR VALUE HIERARCHY FOR INVESTMENTS AND DEBENTURES (Continued)

LMM portfolio investments, private placement portfolio investments, and total portfolio investments by industry at cost and fair value as of December 31, 2011 and 2010:

 
  December 31, 2011   December 31, 2010  
Cost:
  LMM   Private
Placement
  Total   LMM   Private
Placement
  Total  

Commercial Services & Supplies

    15.4 %   0.0 %   11.2 %   15.0 %   0.0 %   11.9 %

Energy Equipment & Services

    9.2 %   12.8 %   10.2 %   6.3 %   6.5 %   6.4 %

Machinery

    9.9 %   3.7 %   8.2 %   11.0 %   0.0 %   8.7 %

Media

    8.7 %   4.0 %   7.4 %   8.5 %   18.6 %   10.6 %

Health Care Providers & Services

    6.5 %   7.6 %   6.8 %   5.3 %   2.3 %   4.6 %

Construction & Engineering

    5.3 %   4.7 %   5.1 %   7.2 %   0.0 %   5.8 %

Software

    2.8 %   7.7 %   4.2 %   3.8 %   0.0 %   3.1 %

Specialty Retail

    5.3 %   0.0 %   3.8 %   6.8 %   0.0 %   5.4 %

Hotels, Restaurants & Leisure

    2.1 %   7.2 %   3.5 %   3.3 %   0.0 %   2.6 %

Insurance

    3.1 %   4.4 %   3.4 %   0.0 %   0.0 %   0.0 %

Electronic Equipment, Instruments & Components

    4.6 %   0.0 %   3.3 %   5.2 %   0.0 %   4.2 %

Food & Staples Retailing

    0.0 %   10.7 %   2.9 %   0.0 %   29.8 %   6.1 %

Professional Services

    3.5 %   0.0 %   2.6 %   1.3 %   0.0 %   1.0 %

Internet Software & Services

    3.0 %   0.0 %   2.2 %   3.6 %   0.0 %   2.9 %

Consumer Finance

    3.0 %   0.0 %   2.1 %   0.0 %   0.0 %   0.0 %

Diversified Consumer Services

    2.7 %   0.0 %   1.9 %   5.2 %   0.0 %   4.1 %

Building Products

    2.6 %   0.0 %   1.9 %   3.2 %   0.0 %   2.5 %

Food Products

    0.0 %   6.8 %   1.9 %   0.0 %   6.1 %   1.3 %

Paper & Forest Products

    2.2 %   0.0 %   1.6 %   3.0 %   9.7 %   4.4 %

Health Care Equipment & Supplies

    2.2 %   0.0 %   1.6 %   1.2 %   0.0 %   0.9 %

Transportation Infrastructure

    2.0 %   0.0 %   1.4 %   2.8 %   0.0 %   2.3 %

Leisure Equipment & Products

    1.9 %   0.0 %   1.4 %   2.6 %   0.0 %   2.1 %

Chemicals

    0.0 %   5.2 %   1.4 %   0.0 %   3.5 %   0.7 %

Trading Companies & Distributors

    1.9 %   0.0 %   1.3 %   3.3 %   0.0 %   2.6 %

Pharmaceuticals

    0.0 %   4.4 %   1.2 %   0.0 %   0.0 %   0.0 %

Real Estate Management & Development

    0.0 %   4.3 %   1.2 %   0.0 %   0.0 %   0.0 %

IT Services

    0.0 %   4.3 %   1.2 %   0.0 %   0.0 %   0.0 %

Internet & Catalog Retail

    0.0 %   3.8 %   1.1 %   0.0 %   0.0 %   0.0 %

Diversified Telecommunication Services

    0.3 %   2.7 %   1.0 %   0.4 %   10.5 %   2.5 %

Construction Materials

    1.1 %   0.0 %   0.9 %   0.0 %   0.0 %   0.0 %

Auto Components

    0.0 %   3.0 %   0.9 %   0.0 %   0.0 %   0.0 %

Containers & Packaging

    0.0 %   2.2 %   0.6 %   0.0 %   0.0 %   0.0 %

Oil, Gas & Consumable Fuels

    0.0 %   0.0 %   0.0 %   0.0 %   5.8 %   1.2 %

Metals & Mining

    0.0 %   0.0 %   0.0 %   0.0 %   4.4 %   0.9 %

Thrifts & Mortgage Finance

    0.0 %   0.0 %   0.0 %   0.0 %   2.6 %   0.5 %

Other(1)

    0.7 %   0.5 %   0.6 %   1.0 %   0.2 %   0.7 %
                           

    100.0 %   100.0 %   100.0 %   100.0 %   100.0 %   100.0 %
                           

(1)
Various industries with each individually less than 0.5% of portfolio totals

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE C—FAIR VALUE HIERARCHY FOR INVESTMENTS AND DEBENTURES (Continued)

 
  December 31, 2011   December 31, 2010  
Fair Value:
  LMM   Private
Placement
  Total   LMM   Private
Placement
  Total  

Energy Equipment & Services

    11.2 %   12.9 %   11.6 %   7.2 %   6.7 %   7.1 %

Commercial Services & Supplies

    13.5 %   0.0 %   10.2 %   13.7 %   0.0 %   11.1 %

Machinery

    10.7 %   3.7 %   9.0 %   10.8 %   0.0 %   8.7 %

Health Care Providers & Services

    7.4 %   7.6 %   7.4 %   7.1 %   2.5 %   6.2 %

Media

    7.4 %   4.0 %   6.5 %   7.6 %   18.4 %   9.7 %

Construction & Engineering

    6.0 %   4.7 %   5.7 %   8.2 %   0.0 %   6.6 %

Internet Software & Services

    5.8 %   0.0 %   4.4 %   4.8 %   0.0 %   3.9 %

Software

    2.8 %   7.7 %   4.0 %   3.5 %   0.0 %   2.8 %

Hotels, Restaurants & Leisure

    2.5 %   7.1 %   3.6 %   3.7 %   0.0 %   3.0 %

Insurance

    2.6 %   4.5 %   3.0 %   0.0 %   0.0 %   0.0 %

Specialty Retail

    3.8 %   0.0 %   2.9 %   6.0 %   0.0 %   4.8 %

Diversified Consumer Services

    3.7 %   0.0 %   2.8 %   5.5 %   0.0 %   4.4 %

Electronic Equipment, Instruments & Components

    3.7 %   0.0 %   2.8 %   5.0 %   0.0 %   4.1 %

Food & Staples Retailing

    0.0 %   10.7 %   2.6 %   0.0 %   30.0 %   5.8 %

Trading Companies & Distributors

    2.6 %   0.0 %   2.0 %   3.3 %   0.0 %   2.7 %

Consumer Finance

    2.5 %   0.0 %   1.9 %   0.0 %   0.0 %   0.0 %

Professional Services

    2.2 %   0.0 %   1.7 %   0.4 %   0.0 %   0.3 %

Paper & Forest Products

    2.2 %   0.0 %   1.6 %   3.0 %   9.4 %   4.2 %

Food Products

    0.0 %   6.7 %   1.6 %   0.0 %   6.2 %   1.2 %

Transportation Infrastructure

    2.0 %   0.0 %   1.5 %   3.0 %   0.0 %   2.4 %

Health Care Equipment & Supplies

    1.9 %   0.0 %   1.4 %   1.1 %   0.0 %   0.9 %

Chemicals

    0.0 %   5.2 %   1.3 %   0.0 %   3.4 %   0.7 %

Building Products

    1.5 %   0.0 %   1.2 %   2.1 %   0.0 %   1.7 %

Pharmaceuticals

    0.0 %   4.7 %   1.1 %   0.0 %   0.0 %   0.0 %

Real Estate Management & Development

    0.0 %   4.5 %   1.1 %   0.0 %   0.0 %   0.0 %

Leisure Equipment & Products

    1.2 %   0.0 %   1.0 %   2.3 %   0.0 %   1.8 %

IT Services

    0.0 %   3.8 %   1.0 %   0.0 %   0.0 %   0.0 %

Internet & Catalog Retail

    0.0 %   3.8 %   1.0 %   0.0 %   0.0 %   0.0 %

Road & Rail

    1.0 %   0.0 %   0.8 %   0.9 %   0.0 %   0.8 %

Diversified Telecommunication Services

    0.2 %   2.7 %   0.8 %   0.2 %   10.3 %   2.2 %

Auto Components

    0.0 %   3.0 %   0.7 %   0.0 %   0.0 %   0.0 %

Containers & Packaging

    0.0 %   2.2 %   0.5 %   0.0 %   0.0 %   0.0 %

Oil, Gas & Consumable Fuels

    0.0 %   0.0 %   0.0 %   0.0 %   5.8 %   1.1 %

Metals & Mining

    0.0 %   0.0 %   0.0 %   0.0 %   4.5 %   0.9 %

Thrifts & Mortgage Finance

    0.0 %   0.0 %   0.0 %   0.0 %   2.6 %   0.5 %

Other(1)

    1.6 %   0.5 %   1.3 %   0.6 %   0.2 %   0.4 %
                           

    100.0 %   100.0 %   100.0 %   100.0 %   100.0 %   100.0 %
                           

(1)
Various industries with each individually less than 0.5% of portfolio totals

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE C—FAIR VALUE HIERARCHY FOR INVESTMENTS AND DEBENTURES (Continued)

        At December 31, 2011, Main Street had no LMM investment that was greater than 10% of its total LMM investment portfolio at fair value and no private placement investment that was greater than 10% of its total private placement investment portfolio at fair value. At December 31, 2010, Main Street had no investment that was greater than 10% of its total investment portfolio at fair value.

NOTE D—WHOLLY OWNED INVESTMENT MANAGER

        As part of the Formation Transactions, the Investment Manager became a wholly owned subsidiary of MSCC. However, the Investment Manager is accounted for as a portfolio investment since the Investment Manager is not an investment company and since it conducts a significant portion of its investment management activities for parties outside of MSCC and its consolidated subsidiaries. The Investment Manager receives recurring investment management fees from MSC II pursuant to a separate investment advisory agreement. The payments due under the investment advisory agreement were fixed at $3.3 million per year, paid quarterly, until September 30, 2010. Subsequent to September 30, 2010, under the investment advisory agreement, MSC II is obligated to pay a 2% annualized management fee based upon the MSC II assets under management. Subsequent to the closing of the Exchange Offer, the investment in the Investment Manager was reduced to reflect the remaining pro rata portion of the MSC II equity and the related portion of the MSC II management fees that were not acquired by MSCC. The Investment Manager also receives certain management, consulting and advisory fees for providing these services to third parties, and collectively with the MSC II management fees attributable to the remaining noncontrolling interest in MSC II is referred to as the "External Services." The portfolio investment in the Investment Manager is accounted for using fair value accounting, with the fair value determined by Main Street and approved, in good faith, by Main Street's Board of Directors, based on the same valuation methodologies applied to determine the original valuation. The valuation for the Investment Manager is based on the total estimated present value of the net cash flows received for the External Services, over the estimated dollar averaged life of the related investment management, advisory or consulting contract, and is also based on comparable public market transactions. The net cash flows utilized in the valuation of the Investment Manager exclude any revenues and expenses from MSCC and its subsidiaries, but include the revenues attributable to External Services, and are reduced by an estimated allocation of costs related to providing such External Services. Any change in fair value of the investment in the Investment Manager is recognized on Main Street's statement of operations as "Unrealized appreciation (depreciation) in Investment in affiliated Investment Manager," with a corresponding increase (in the case of appreciation) or decrease (in the case of depreciation) to "Investment in affiliated Investment Manager" on Main Street's balance sheet. As part of the Exchange Offer Transactions, the investment in the Investment Manager was reduced by $13.7 million and such reduction was recorded against "Additional paid-in capital" as an adjustment to the original valuation recorded as part of the Formation Transactions. Main Street believes that the valuation for the Investment Manager will generally decrease over the life of the investment management, advisory and consulting contracts attributable to third parties, absent obtaining additional recurring cash flows from performing External Services for other external investment entities or other third parties.

        The Investment Manager has elected, for tax purposes, to be treated as a taxable entity and is taxed at normal corporate tax rates based on its taxable income. The taxable income of the Investment Manager may differ from its book income due to temporary book and tax timing differences, as well as

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE D—WHOLLY OWNED INVESTMENT MANAGER (Continued)

permanent differences. The Investment Manager provides for any current taxes payable and deferred tax items in its separate financial statements.

        MSCC has a support services agreement with the Investment Manager that is structured to provide reimbursement to the Investment Manager for any personnel, administrative and other costs it incurs in conducting its operational and investment management activities in excess of the fees received for providing management advisory services. As a wholly owned subsidiary of MSCC, the Investment Manager manages the day-to-day operational and investment activities of MSCC and its subsidiaries. The Investment Manager pays personnel and other administrative expenses, except those specifically required to be borne by MSCC which principally include direct costs that are specific to MSCC's status as a publicly traded entity. The expenses paid by the Investment Manager include the cost of salaries and related benefits, rent, equipment and other administrative costs required for day-to-day operations.

        Pursuant to the support services agreement with MSCC, the Investment Manager is reimbursed by MSCC for its excess operating expenses associated with providing investment management and other services to MSCC and its subsidiaries, as well as third parties. Each quarter, as part of the support services agreement, MSCC makes payments to cover all cash operating expenses incurred by the Investment Manager, less fees that the Investment Manager receives pursuant to third party long-term investment advisory agreements and consulting agreements. Subsequent to the consolidation of MSC II in connection with the Exchange Offer, the management fees paid by MSC II to the Investment Manager are now included in "Expenses reimbursed to affiliated Investment Manager" on the statements of operations along with any additional net costs reimbursed by MSCC to the Investment Manager pursuant to the support services agreement. For the years ended December 31, 2011, 2010, and 2009, the expenses reimbursed by MSCC and management fees paid by MSC II to the Investment Manager totaled $8.9 million, $5.3 million, and $0.6 million, respectively.

        In its separate stand-alone financial statements as summarized below, the Investment Manager recognized an $18 million intangible asset related to the investment advisory agreement with MSC II consistent with Staff Accounting Bulletin No. 54, Application of "Pushdown" Basis of Accounting in Financial Statements of Subsidiaries Acquired by Purchase ("SAB 54"). Under SAB 54, push-down accounting is required in "purchase transactions that result in an entity becoming substantially wholly owned." In this case, MSCC acquired 100% of the equity interests in the Investment Manager in the Formation Transactions. Because the $18 million value attributed to MSCC's investment in the Investment Manager was derived from the long-term, recurring management fees under the investment advisory agreement with MSC II, the same methodology used to determine the $18 million valuation of the Investment Manager in connection with the Formation Transactions was utilized to establish the push-down accounting basis for the intangible asset. The intangible asset is being amortized over the estimated economic life of the investment advisory agreement with MSC II. For the years ended December 31, 2011, 2010, and 2009, the Investment Manager recognized $1.2 million, $1.1 million, and $1.0 million of amortization expense in each respective period associated with the intangible asset. Amortization expense is not included in the expenses reimbursed by MSCC to the Investment Manager based upon the support services agreement since it is non-cash and non-operating in nature.

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE D—WHOLLY OWNED INVESTMENT MANAGER (Continued)

        Summarized financial information from the separate financial statements of the Investment Manager is as follows:

 
  As of December 31,  
 
  2011   2010  
 
  (Unaudited)
 

Cash

  $ 98,918   $ 191,645  

Accounts receivable

    28,965     75,501  

Accounts receivable—MSCC

    4,830,750     15,124  

Intangible asset (net of accumulated amortization of $4,392,329 and $3,209,740 as of December 31, 2011 and 2010, respectively)

    13,607,671     14,790,260  

Deposits and other

    145,133     139,244  
           

Total assets

  $ 18,711,437   $ 15,211,774  
           

Accounts payable and accrued liabilities

  $ 5,248,338   $ 566,087  

Equity

    13,463,099     14,645,687  
           

Total liabilities and equity

  $ 18,711,437   $ 15,211,774  
           

 

 
  Years Ended December 31,  
 
  2011   2010   2009  
 
  (Unaudited)
 

Management fee income from Main Street Capital II

  $ 2,455,353   $ 3,054,011   $ 3,325,200  

Other management advisory fees

    527,499     369,595     287,200  
               

Total income

    2,982,852     3,423,606     3,612,400  

Salaries, benefits and other personnel costs

    (8,270,996 )   (4,542,861 )   (3,415,837 )

Occupancy expense

    (327,645 )   (308,380 )   (348,761 )

Professional expenses

    (76,637 )   (102,122 )   (12,794 )

Amortization expense—intangible asset

    (1,182,588 )   (1,084,943 )   (950,589 )

Other expenses

    (767,195 )   (679,365 )   (404,876 )

Expense reimbursement from MSCC

    6,459,621     2,209,122     569,868  
               

Total net expenses

    (4,165,440 )   (4,508,549 )   (4,562,989 )
               

Net loss

  $ (1,182,588 ) $ (1,084,943 ) $ (950,589 )
               

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE E—DEFERRED FINANCING COSTS

        Deferred financing costs balances as of December 31, 2011 and 2010 are as follows:

 
  As of December 31,  
 
  2011   2010  

SBIC debenture commitment fees

  $ 1,340,000   $ 1,000,000  

SBIC debenture leverage fees

    3,065,075     2,095,075  

Other

    1,929,755     953,154  
           

Subtotal

    6,334,830     4,048,229  

Accumulated amortization

    (2,166,815 )   (1,504,584 )
           

Net deferred financing costs balance

  $ 4,168,015   $ 2,543,645  
           

        Estimated aggregate amortization expense for each of the five years succeeding December 31, 2011 and thereafter is as follows:

Years Ended December 31,
  Estimated
Amortization
 

2012

  $ 912,678  

2013

  $ 903,345  

2014

  $ 735,919  

2015

  $ 311,167  

2016

  $ 273,542  

2017 and thereafter

  $ 941,363  

NOTE F—SBIC DEBENTURES

        SBIC debentures payable at December 31, 2011 and 2010 were $220 million and $180 million, respectively. SBIC debentures provide for interest to be paid semi-annually, with principal due at the applicable 10-year maturity date of each debenture. The weighted average annual interest rate as of December 31, 2011 and 2010 was 5.1% and 5.2%, respectively. The first principal maturity due under the existing SBIC debentures is in 2013, and the remaining weighted average duration as of December 31, 2011 is approximately 6.7 years. For the year ended December 31, 2011, Main Street recognized $11.1 million in interest expense attributable to the SBIC debentures. In accordance with SBA regulations, the Funds are precluded from incurring additional non-SBIC debt without the prior approval of the SBA. The Funds are subject to annual compliance examinations by the SBA. There have been no historical findings resulting from these examinations.

        As of December 31, 2011, the recorded value of the SBIC debentures was $201.9 million which consisted of (i) $76.9 million recorded at fair value, or $18.1 million less than the $95.0 million face value of these SBIC debentures held in MSC II, and (ii) $125 million reported at face value and held in MSMF. As of December 31, 2011, if Main Street had adopted the fair value option under ASC 825 for all of its SBIC debentures, Main Street estimates the fair value of its SBIC debentures would be approximately $177.9 million, or $42.1 million less than the $220 million face value of the SBIC debentures.

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE F—SBIC DEBENTURES (Continued)

        SBIC Debentures payable at December 31, 2011 and 2010 consist of the following:

Maturity Date
  Fixed
Interest
Rate
  Amount  

9/1/2013

    5.762 % $ 4,000,000  

3/1/2014

    5.007 %   3,000,000  

9/1/2014

    5.571 %   9,000,000  

9/1/2014

    5.539 %   6,000,000  

3/1/2015

    5.925 %   2,000,000  

3/1/2015

    5.893 %   2,000,000  

9/1/2015

    5.796 %   19,100,000  

3/1/2017

    6.231 %   3,900,000  

3/1/2017

    6.263 %   1,000,000  

3/1/2017

    6.317 %   5,000,000  

3/1/2020

    4.514 %   10,000,000  

Debentures Acquired in the Exchange Offer on January 7, 2010

             

9/1/2016

    6.476 %   5,000,000  

3/1/2017

    6.317 %   7,100,000  

9/1/2017

    6.434 %   19,800,000  

9/1/2017

    6.469 %   7,900,000  

3/1/2018

    6.377 %   10,200,000  

9/1/2019

    4.950 %   20,000,000  
             

Balances as of Consummation of the Exchange Offer

          135,000,000  

9/1/2020

    3.932 %   10,000,000  

9/1/2020

    3.500 %   35,000,000  
             

Balances as of December 31, 2010

          180,000,000  

3/1/2021

    4.369 %   10,000,000  

3/1/2021

    4.599 %   20,000,000  

9/1/2021

    3.392 %   10,000,000  
             

Balances as of December 31, 2011

        $ 220,000,000  
             

NOTE G—CREDIT FACILITY

        In November 2011, Main Street expanded its credit facility (the "Credit Facility") from $155 million to $210 million to provide additional liquidity in support of future investment and operational activities. The $55 million increase in total commitments included commitment increases by lenders currently participating in the Credit Facility, as well as the addition of one new lender relationship which diversified the Main Street lending group to a total of seven participants. In December 2011, Main Street further expanded the Credit Facility from $210 million to $235 million. The $25 million increase in total commitments included the addition of one new lender relationship which further diversified the lending group to a total of eight participants. The recent increases in total commitments were executed under the accordion feature of the Credit Facility which allows Main Street to increase the total commitments under the facility up to $300 million of total commitments from new or existing lenders on the same terms and conditions as the existing commitments.

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE G—CREDIT FACILITY (Continued)

Borrowings under the Credit Facility bear interest, subject to Main Street's election, on a per annum basis equal to (i) the applicable LIBOR rate plus 2.50% or (ii) the applicable base rate plus 1.50%. Main Street pays unused commitment fees of 0.375% per annum on the unused lender commitments under the Credit Facility. The Credit Facility is secured by a first lien on the assets of MSCC and its subsidiaries, excluding the assets of the Funds. The Credit Facility contains certain affirmative and negative covenants, including but not limited to: (i) maintaining an interest coverage ratio of at least 2.0 to 1.0, (ii) maintaining an asset coverage ratio of at least 2.5 to 1.0, and (iii) maintaining a minimum tangible net worth. The Credit Facility will mature in September 2014. At December 31, 2011, Main Street had $107.0 million in borrowings outstanding under the Credit Facility. For the year ended December 31, 2011, Main Street recognized $2.5 million in interest expense related to the Credit Facility, including unused commitment fees and amortization of deferred loan costs. As of December 31, 2011, the interest rate on the Credit Facility was 2.77%, and Main Street was in compliance with all financial covenants of the Credit Facility.

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE H—FINANCIAL HIGHLIGHTS

 
  Years Ended December 31,  
Per Share Data:
  2011   2010   2009   2008   2007  

Net asset value at beginning of period

  $ 13.06   $ 11.96   $ 12.20   $ 12.85   $ 4.90  

Net investment income(1)(3)

    1.69     1.16     0.92     1.13     0.76  

Net realized gain (loss) from investments(1)(2)(3)

    0.11     (0.17 )   (0.78 )   0.16     0.55  

Net change in unrealized appreciation(1)(2)(3)

    1.23     1.14     0.82     (0.44 )   (0.63 )

Income tax provision(1)(2)(3)

    (0.27 )   (0.05 )   0.23     0.35     (0.38 )

Bargain purchase gain(1)

        0.30              
                       

Net increase in net assets resulting from operations(1)

    2.76     2.38     1.19     1.20     0.30  

Net increase in net assets associated with the Formation Transactions and the IPO

                    8.66  

Dividends paid to stockholders

    (1.56 )   (1.50 )   (1.50 )   (1.43 )   (0.33 )

Impact of monthly dividend declared as of December 31 but paid in January of the following year

    (0.14 )       0.13     (0.13 )    

Net decrease in net assets from distributions to partners, net of contributions

                    (0.72 )

Accretive effect of public stock offerings (issuing shares above NAV per share)

    0.74     0.49              

Accretive effect of Exchange Offer

        0.22              

Adjustment to investment in Investment Manager in connection with Exchange Offer Transactions

        (0.73 )            

Accretive effect of DRIP issuance (issuing shares above NAV per share)

    0.05     0.08             0.22  

Other(4)

    0.28     0.16     (0.06 )   (0.29 )   (0.18 )
                       

Net asset value at December 31

  $ 15.19   $ 13.06   $ 11.96   $ 12.20   $ 12.85  
                       

Market value at December 31

  $ 21.24   $ 18.19   $ 16.12   $ 9.77   $ 14.01  

Shares outstanding at December 31

    26,714,384     18,797,444     10,842,447     9,206,483     8,959,718  

(1)
Based on weighted average number of common shares outstanding for the period.

(2)
Net realized gains or losses, net change in unrealized appreciation or depreciation, and income taxes can fluctuate significantly from period to period.

(3)
Per share amounts are net of the earnings attributable to MSC II noncontrolling interest.

(4)
Includes the impact of the different share amounts as a result of calculating certain per share data based on the weighted average basic shares outstanding during the period and certain per share data based on the shares outstanding as of a period end or transaction date.

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE H—FINANCIAL HIGHLIGHTS (Continued)

 
  Years Ended December 31,  
 
  2011   2010   2009   2008   2007  

Net asset value at end of period

  $ 405,710,709   $ 245,534,645   $ 129,660,131   $ 112,356,056   $ 115,149,208  

Average net asset value

  $ 327,385,882   $ 195,785,250   $ 120,539,528   $ 114,977,272   $ 56,882,526  

Average outstanding debt

  $ 277,692,308   $ 158,563,014   $ 57,000,000   $ 55,000,000   $ 53,020,000  

Ratio of total expenses, including income tax expense, to average net asset value(1)(2)

    9.82 %   8.81 %   5.63 %   6.07 %   16.20 %

Ratio of operating expenses to average net asset value(1)

    7.96 %   8.34 %   5.63 %   6.07 %   10.47 %

Ratio of operating expenses, excluding interest expense, to average net asset value(1)

    4.01 %   3.98 %   2.48 %   2.79 %   4.76 %

Ratio of net investment income to average net asset value(1)

    11.76 %   9.65 %   7.65 %   8.97 %   11.47 %

Portfolio turnover ratio

    30.82 %   26.71 %   18.48 %   19.34 %   18.30 %

Total return based on change in net asset value(3)

    25.64 %   26.11 %   10.64 %   9.84 %   5.88 %

(1)
Ratios are net of amounts attributable to MSC II noncontrolling interest.

(2)
Total expenses are the sum of operating expenses and income tax expense. Income tax expense primarily relates to the accrual of deferred taxes on the net unrealized appreciation from portfolio investments held in Taxable Subsidiaries, which is non-cash in nature and may vary significantly from period to period. Main Street is required to include deferred taxes in calculating its total expenses even though these deferred taxes are not currently payable.

(3)
Total return based on change in net asset value was calculated using the sum of ending net asset value plus dividends to stockholders and other non-operating changes during the period, as divided by the beginning net asset value.

NOTE I—DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME

        Main Street paid monthly dividends of (i) $0.125 per share for each month of January 2011 through March 2011, (ii) $0.13 per share for each month of April 2011 through September 2011, and (iii) $0.135 per share for each month of October 2011 through December 2011, totaling $34.9 million, or $1.56 per share, for the 2011 year. For tax purposes, the 2011 dividends were comprised of (i) ordinary income totaling approximately $1.25 per share, (ii) long term capital gain totaling approximately $0.37 per share, and (iii) qualified dividend income totaling approximately $0.07 per share. Main Street estimates that it generated undistributed taxable income of approximately $7.9 million, or $0.30 per share, during 2011 that will be carried forward toward distributions paid in 2012. During December 2011, Main Street declared and accrued a $0.135 per share monthly dividend that was paid in January 2012. For the year ended December 31, 2010, Main Street paid total monthly dividends of approximately $23.9 million, or $1.50 per share, for the period.

        Ordinary dividend distributions from a RIC do not qualify for the 15% maximum tax rate on dividend income from domestic corporations and qualified foreign corporations, except to the extent that the RIC received the income in the form of qualifying dividends from domestic corporations and qualified foreign corporations. The tax attributes for dividends will generally include both ordinary

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE I—DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME (Continued)

income and capital gains but may also include qualified dividends or return of capital. The tax character of distributions paid for the years ended December 31, 2011, 2010, and 2009 was as follows:

 
  For the Years Ended December 31,  
 
  2011   2010   2009  

Ordinary income

  $ 29,353,875   $ 19,464,742   $ 12,115,234  

Qualified dividends

    1,444,598     219,063      

Distributions of long term capital gains

    7,750,370     4,216,104     1,619,697  
               

Distributions on tax basis

  $ 38,548,843   $ 23,899,909   $ 13,734,931  
               

        MSCC has elected to be treated for federal income tax purposes as a RIC. As a RIC, MSCC generally will not pay corporate-level federal income taxes on any net ordinary income or capital gains that MSCC distributes to its stockholders as dividends. MSCC must generally distribute at least 90% of its investment company taxable income to qualify for pass-through tax treatment and maintain its RIC status. As part of maintaining RIC status, undistributed taxable income (subject to a 4% excise tax) pertaining to a given fiscal year may be distributed up to 12 months subsequent to the end of that fiscal year, provided such dividends are declared prior to the filing of the federal income tax return for the prior year.

        The Taxable Subsidiaries hold certain portfolio investments for Main Street. The Taxable Subsidiaries are consolidated with Main Street for financial reporting purposes, and the portfolio investments held by the Taxable Subsidiaries are included in Main Street's consolidated financial statements. The principal purpose of the Taxable Subsidiaries is to permit Main Street to hold equity investments in portfolio companies which are "pass through" entities for tax purposes in order to comply with the "source income" requirements contained in the RIC tax provisions of the Code. The Taxable Subsidiaries are not consolidated with Main Street for income tax purposes and may generate income tax expense or income tax benefit as a result of their ownership of various portfolio investments. This income tax expense or benefit, if any, is reflected in Main Street's Consolidated Statement of Operations. For the year ended December 31, 2011, Main Street recognized an income tax provision of $6.3 million primarily consisting of deferred tax expense related to net unrealized appreciation on certain portfolio investments held by the Taxable Subsidiaries.

        Main Street's provision for income taxes, including the Taxable Subsidiaries, was comprised of the following:

 
  Years Ended December 31,  
 
  2011   2010   2009  

Current tax expense (benefit):

                   

Federal

  $   $   $ (823,045 )

State

    252,750     200,000     87,923  
               

Total current tax expense (benefit)

    252,750     200,000     (735,122 )

Deferred tax expense (benefit):

                   

Federal

    5,435,274     428,064     (1,594,719 )

State

    299,638     246,917      
               

Total deferred tax expense (benefit)

    5,734,912     674,981     (1,594,719 )

Excise tax

    300,000     65,653     40,000  
               

Total income tax provision (benefit)

  $ 6,287,662   $ 940,634   $ (2,289,841 )
               

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE I—DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME (Continued)

        As of December 31, 2011, the cost of investments for federal income tax purposes was $628.8 million, resulting in a gross unrealized appreciation of $81.7 million and gross unrealized depreciation of $26.1 million.

        Listed below is a reconciliation of "Net Increase in Net Assets Resulting From Operations" to taxable income and to total distributions declared to common stockholders for the years ended December 31, 2011 and 2010.

 
  Years Ended December 31,  
 
  2011   2010  
 
  (estimated)(1)
   
 

Net increase in net assets resulting from operations

  $ 64,106,430   $ 39,970,351  

Share-based compensation expense

    2,047,039     1,488,709  

Net realized income allocated to noncontrolling interest

    (857,286 )   (250,180 )

Net change in unrealized appreciation on investments

    (28,478,529 )   (19,639,414 )

Bargain purchase gain

        (4,890,582 )

Income tax provision

    6,287,662     940,634  

Pre-tax book (income) loss not consolidated for tax purposes

    (223,181 )   6,036,427  

Book income and tax income differences, including debt origination, structuring fees, dividends, and realized gains

    3,014,192     (100,734 )
           

Estimated taxable income

    45,896,327     23,555,211  

Taxable income earned in prior year and carried forward for distribution in current year

    586,227     930,925  

Ordinary taxable income earned in current period and carried forward for distribution

    (11,540,153 )   (586,227 )

Dividend accrued as of December 31, 2011 and paid on January 16, 2012

    3,606,442      
           

Total distributions accrued or paid to common stockholders

  $ 38,548,843   $ 23,899,909  
           

(1)
Main Street's taxable income for 2011 is an estimate and will not be finally determined until the company files its 2011 tax return in 2012. Therefore, the final taxable income, and the taxable income earned in 2011 and carried forward for distribution in 2012, may be different than this estimate.

        The net deferred tax liability at December 31, 2011 was $3.8 million and primarily related to (i) $11.5 million of deferred tax liability associated with timing differences from net unrealized appreciation of portfolio investments held by the Taxable Subsidiaries and (ii) $0.2 million of deferred tax liability associated with timing differences from recognition of realized gains on portfolio investments held by the Taxable Subsidiaries, partially offset by (i) $6.7 million of deferred tax assets associated with net loss carryforwards primarily resulting from historical realized losses on portfolio investments held by the Taxable Subsidiaries and (ii) $1.2 million of deferred tax assets associated with basis differences of portfolio investments held by the Taxable Subsidiaries which are "pass through" entities for tax purposes. The net deferred tax asset at December 31, 2010 was $2.0 million and primarily related to (i) $6.6 million of deferred tax assets associated with net operating loss carryforwards primarily resulting from historical realized losses on portfolio investments held by the Taxable Subsidiaries and (ii) $0.3 million of deferred tax assets associated with basis differences of portfolio investments held by the Taxable Subsidiaries which are "pass through" entities for tax

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE I—DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME (Continued)

purposes, partially offset by $5.0 million of deferred tax liability associated with timing differences from net unrealized appreciation of portfolio investments held by the Taxable Subsidiaries. Management believes that the realization of the deferred tax assets is more likely than not based on expectations as to future taxable income and scheduled reversals of temporary differences. Accordingly, Main Street did not record a valuation allowance related to its deferred tax assets at December 31, 2011 and 2010. The following table sets forth the significant components of net deferred tax assets and liabilities as of December 31, 2011 and 2010.

 
  Years Ended December 31,  
 
  2011   2010  

Deferred tax assets:

             

Net loss carryforwards resulting from realized losses

    6,686,963     6,647,889  

Basis differences in portfolio investment "pass through" entities

    1,226,870     310,885  
           

Total deferred tax assets

    7,913,833     6,958,774  
           

Deferred tax liabilities:

             

Net unrealized appreciation of portfolio investments

    (11,490,717 )   (5,000,181 )

Other

    (199,436 )    
           

Total deferred tax liabilities

    (11,690,153 )   (5,000,181 )
           

Total net deferred tax assets (liabilities)

    (3,776,320 )   1,958,593  
           

        For federal income tax purposes, the net loss carryforwards expire in various years from 2028 through 2031. The timing and manner in which Main Street will utilize any net loss carryforwards in any year, or in total, may be limited in the future under the provisions of the Code.

NOTE J—EXCHANGE OFFER

        On January 7, 2010, MSCC consummated the Exchange Offer to exchange 1,239,695 shares (the "Exchange Shares") of its common stock for approximately 88% of the total dollar value of the limited partner interests in MSC II. Pursuant to the terms of the Exchange Offer, 100% of the membership interests in MSC II GP were also transferred to MSCC for no consideration. MSC II commenced operations in January 2006, is an investment fund that operates as an SBIC and is managed by the Investment Manager. The Exchange Offer was applicable to all MSC II limited partner interests except for any limited partner interests owned by affiliates of MSCC, including any limited partner interests owned by officers or directors of MSCC. The Exchange Offer was formally approved by the SBA prior to closing. The Exchange Shares were subject to a one-year contractual lock-up from the Exchange Offer closing date. An approximately 12% minority ownership in the total dollar value of the MSC II limited partnership interests remains outstanding, including approximately 5% owned by affiliates of MSCC.

        The Exchange Offer was accounted for under the acquisition method of accounting in accordance with ASC 805. Accordingly, the purchase price was preliminarily allocated to the acquired assets and liabilities based on their estimated fair values at the Exchange Offer acquisition date as summarized in the following table. The fair value of the MSC II net assets acquired exceeded the fair value of the

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE J—EXCHANGE OFFER (Continued)

stock consideration issued, resulting in a bargain purchase gain that was recorded by Main Street in the period that the Exchange Offer was completed.

Value of the stock consideration issued for limited partner interests acquired

  $ 19,934,296 (1)

Fair value of noncontrolling limited partner interests

    3,396,005 (2)
       

Total stock consideration and noncontrolling interest value

    23,330,301  

Fair value of MSC II assets and liabilities on January 7, 2010:

       

Cash

    2,489,920  

Debt investments acquired at fair value

    64,925,164  

Equity investments acquired at fair value

    14,930,614  

Other assets

    808,560  

SBIC debentures at fair value

    (53,139,092 )

Deferred tax liability assumed

    (82,827 )

Other liabilities

    (1,519,608 )
       

Total fair value of MSC II net assets

    28,412,731  
       

Bargain purchase gain

    5,082,430  

Transaction costs associated with the Exchange Offer

    (191,848 )
       

Bargain purchase gain, net of transaction costs

  $ 4,890,582  
       

(1)
The value of the shares of common stock exchanged for a majority of MSC II limited partner interests was based upon the closing price of Main Street's common stock at January 7, 2010, the closing date of the Exchange Offer.

(2)
The fair value of the noncontrolling limited partner interests was based on the noncontrolling interests' share in the total fair value of MSC II net assets at January 7, 2010.

        Consummation of the Exchange Offer Transactions provides Main Street with access to additional long-term, low-cost leverage capacity through the SBIC program. The American Recovery and Reinvestment Act of 2009 enacted in February 2009 (the "Stimulus Bill") increased the maximum amount of combined SBIC leverage (or SBIC leverage cap) to $225 million for affiliated SBIC funds from the previous SBIC leverage cap of approximately $137 million. Since the increase in the SBIC leverage cap applies to affiliated SBIC funds, Main Street is required to allocate such increased borrowing capacity between MSMF and MSC II.

        The following represents actual operating results for the years ended December 31, 2011 and 2010 and pro forma operating results for the year ended December 31, 2009. The pro forma operating

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE J—EXCHANGE OFFER (Continued)

results assume the Exchange Offer Transactions had been completed as of the beginning of the 2009 calendar year:

 
  Years Ended December 31,  
 
  2011   2010   Pro Forma 2009  
 
  (Dollars in millions except per share amounts)
 

Total investment income

  $ 66.2   $ 36.5   $ 26.7  
               

Net investment income

  $ 39.3   $ 19.3   $ 12.6  
               

Net increase in net assets resulting from operations attributable to common stock

  $ 63.0   $ 38.7   $ 11.4  
               

Net investment income per share—basic and diluted

  $ 1.69   $ 1.16   $ 0.87  
               

Net increase in net assets resulting from operations attributable to common stock per share—basic and diluted

  $ 2.76   $ 2.38   $ 0.80  
               

NOTE K—COMMON STOCK

        In October 2011, Main Street completed a public stock offering of 3,450,000 shares of common stock, including the underwriters' full exercise of the over-allotment option, at a price to the public of $17.50 per share, resulting in total net proceeds of approximately $57.5 million, after deducting underwriters' commissions and offering costs.

        In March 2011, Main Street completed a public stock offering of 4,025,000 shares of common stock, including the underwriters' full exercise of the over-allotment option, at a price to the public of $18.35 per share, resulting in total net proceeds of approximately $70.3 million, after deducting underwriters' commissions and offering costs.

        In August 2010, Main Street completed a public stock offering of 3,220,000 shares of common stock, including the underwriters' exercise of the over-allotment option, at a price to the public of $15.00 per share, resulting in total net proceeds of approximately $45.8 million, after deducting underwriters' commissions and offering costs.

        In January 2010, Main Street completed a public stock offering of 2,875,000 shares of common stock, including the underwriters' exercise of the over-allotment option, at a price to the public of $14.75 per share, resulting in total net proceeds of approximately $40.1 million, after deducting underwriters' commissions and offering costs.

NOTE L—DIVIDEND REINVESTMENT PLAN ("DRIP")

        Main Street's DRIP provides for the reinvestment of dividends on behalf of its stockholders, unless a stockholder has elected to receive dividends in cash. As a result, if Main Street declares a cash dividend, the company's stockholders who have not "opted out" of the DRIP by the dividend record date will have their cash dividend automatically reinvested into additional shares of MSCC common stock. Main Street has the option to satisfy the share requirements of the DRIP through the issuance of shares of common stock or through open market purchases of common stock by the DRIP plan administrator. Newly issued shares will be valued based upon the final closing price of MSCC's common stock on the valuation date determined for each dividend by Main Street's Board of Directors. Shares purchased in the open market to satisfy the DRIP requirements will be valued based upon the

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE L—DIVIDEND REINVESTMENT PLAN ("DRIP") (Continued)

average price of the applicable shares purchased by the DRIP plan administrator, before any associated brokerage or other costs. Main Street's DRIP is administered by its transfer agent on behalf of Main Street's record holders and participating brokerage firms. Brokerage firms and other financial intermediaries may decide not to participate in Main Street's DRIP but may provide a similar dividend reinvestment plan.

        For the year ended December 31, 2011, $10.5 million of the total $34.9 million in dividends paid to stockholders represented DRIP participation. During this period, Main Street satisfied the DRIP participation requirements with the issuance of 348,695 newly issued shares and with the purchase of 217,407 shares of common stock in the open market. For the year ended December 31, 2010, $8.2 million of the total $23.9 million in dividends paid to stockholders represented DRIP participation. During this period, Main Street satisfied the DRIP participation requirements with the issuance of 478,731 newly issued shares and with the purchase of 35,572 shares of common stock in the open market. The shares disclosed above relate only to Main Street's DRIP and exclude any activity related to broker-managed dividend reinvestment plans.

NOTE M—SHARE-BASED COMPENSATION

        Main Street accounts for its share-based compensation plans using the fair value method, as prescribed by ASC 718, Compensation—Stock Compensation. Accordingly, for restricted stock awards, Main Street measured the grant date fair value based upon the market price of its common stock on the date of the grant and will amortize this fair value to share-based compensation expense over the requisite service period or vesting term.

        Main Street's Board of Directors approves the issuance of shares of restricted stock to Main Street employees pursuant to the Main Street Capital Corporation 2008 Equity Incentive Plan. These shares vest over a four-year period from the grant date and are expensed over the four-year service period starting on the grant date. The following table summarizes the restricted stock issuances approved by Main Street's Board of Directors and the remaining shares of restricted stock available for issuance as of December 31, 2011:

Restricted stock authorized under the plan

    2,000,000  

Less restricted stock granted on:

       

July 1, 2008

    (245,645 )

July 1, 2009

    (99,312 )

July 1, 2010

    (149,357 )

June 20, 2011

    (117,728 )
       

Restricted stock available for issuance as of December 31, 2011

    1,387,958  
       

        The following table summarizes the restricted stock issued to Main Street's independent directors pursuant to the Main Street Capital Corporation 2008 Non-Employee Director Restricted Stock Plan.

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE M—SHARE-BASED COMPENSATION (Continued)

These shares vest on the day immediately preceding the annual meeting of stockholders following the respective grant date and are expensed over a one-year service period starting on the grant date:

Restricted stock authorized under the plan

    200,000  

Less restricted stock granted on:

       

July 1, 2008

    (20,000 )

July 1, 2009

    (8,512 )

July 1, 2010

    (7,920 )

June 20, 2011

    (6,584 )

August 3, 2011

    (1,658 )
       

Restricted stock available for issuance as of December 31, 2011

    155,326  
       

        For the years ended December 31, 2011, 2010, and 2009 Main Street recognized total share-based compensation expense of $2.0 million, $1.5 million, and $1.1 million, respectively, related to the restricted stock issued to Main Street employees and independent directors.

        As of December 31, 2011, there was $4.2 million of total unrecognized compensation expense related to Main Street's non-vested restricted shares. This compensation expense is expected to be recognized over a remaining weighted-average period of approximately 2.7 years as of December 31, 2011.

NOTE N—COMMITMENTS

        At December 31, 2011, Main Street had a total of $39.6 million in outstanding commitments comprised of (i) seven commitments to fund revolving loans that had not been fully drawn and (ii) two capital commitments that had not been fully called.

NOTE O—SUPPLEMENTAL CASH FLOW DISCLOSURES

        Listed below are the supplemental cash flow disclosures for the years ended December 31, 2011, 2010, and 2009:

 
  Year Ended December 31,  
 
  2011   2010   2009  

Interest paid

  $ 12,066,829   $ 7,805,750   $ 3,415,200  

Taxes paid

  $ 194,488   $ 74,925   $ 109,404  

Non-cash financing activities:

                   

Shares issued in connection with the MSC II Exchange Offer

  $   $ 20,093,091   $  

Shares issued pursuant to the DRIP

  $ 6,611,788   $ 7,637,090   $ 3,692,720  

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE P—SELECTED QUARTERLY DATA (UNAUDITED)

 
  2011  
 
  Qtr. 1   Qtr. 2   Qtr. 3   Qtr. 4  

Total investment income

  $ 13,374,572   $ 16,107,303   $ 17,086,333   $ 19,671,802  

Net investment income

  $ 7,392,482   $ 9,593,632   $ 10,361,362   $ 11,929,628  

Net increase in net assets resulting from operations attributable to common stock

  $ 10,322,729   $ 17,626,033   $ 14,436,073   $ 20,582,357  

Net investment income per share-basic and diluted

  $ 0.38   $ 0.41   $ 0.44   $ 0.45  

Net increase in net assets resulting from operations attributable to common stock per share-basic and diluted

  $ 0.54   $ 0.77   $ 0.62   $ 0.79  

 

 
  2010  
 
  Qtr. 1   Qtr. 2   Qtr. 3   Qtr. 4  

Total investment income

  $ 7,092,839   $ 8,732,219   $ 9,005,955   $ 11,676,894  

Net investment income

  $ 3,220,253   $ 4,742,088   $ 4,757,564   $ 6,540,747  

Net increase in net assets resulting from operations attributable to common stock

  $ 9,056,545   $ 8,872,666   $ 10,943,302   $ 9,871,351  

Net investment income per share-basic and diluted

  $ 0.22   $ 0.31   $ 0.28   $ 0.34  

Net increase in net assets resulting from operations attributable to common stock per share-basic and diluted

  $ 0.63   $ 0.59   $ 0.65   $ 0.53  

NOTE Q—RELATED PARTY TRANSACTIONS

        As discussed further in Note D to the accompanying consolidated financial statements, subsequent to the completion of the Formation Transactions, the Investment Manager is a wholly owned portfolio company of MSCC. At December 31, 2011, the Investment Manager had a receivable of $4.8 million with MSCC related to net cash expenses incurred by the Investment Manager required to support Main Street's business.

NOTE R—SUBSEQUENT EVENTS

        On January 5, 2012, Main Street fully exited its debt and equity investments in Currie Acquisitions, LLC ("Currie"). Main Street completed the exit of its debt and equity investments in Currie as part of a buyout of Currie by Accell Group, a Netherlands-based international conglomerate. Main Street exited its debt investment for the full principal amount of approximately $4.8 million and recognized a realized loss of approximately $1.2 million on its equity investment.

        On February 17, 2012, MSCC acquired approximately 8.5% of the total dollar value of the MSC II limited partnership interests not owned by MSCC, including the approximately 5% held by affiliates of MSCC, in exchange for 170,203 shares of its common stock. Subsequent to the acquisition, an approximately 3.0% minority ownership in the total dollar value of the MSC II limited partnership interests remained outstanding.

        On February 29, 2012, Main Street completed the exit of its debt investment and a portion of its equity investments in Drilling Info, Inc. ("Drilling Info"), as part of an equity investment in Drilling

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MAIN STREET CAPITAL CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

NOTE R—SUBSEQUENT EVENTS (Continued)

Info by a group of leading private equity investment firms focused on the global software, Internet and data-services industries. As part of the exit, Main Street realized a gain of approximately $9.2 million on the sale of its equity warrant participation and received the full repayment of the principal amount of $8.0 million on its debt investment.

        On March 6, 2012, Main Street declared monthly dividends for the second quarter of 2012 of $0.14 per share for each of April, May and June 2012, or a total of $0.42 per share. The second quarter 2012 dividends represent a 7.7% increase from the dividends declared for the second quarter of 2011 and a 3.7% increase compared to the first quarter of 2012. Including the dividends declared for the second quarter of 2012, Main Street will have paid $7.14 per share in cumulative dividends since its October 2007 initial public offering.

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Report of Independent Registered Public Accounting Firm

Board of Directors and Stockholders' of
Main Street Capital Corporation

        We have audited in accordance with the standards of the Public Company Accounting Oversight Board (United States) the consolidated financial statements of Main Street Capital Corporation referred to in our report dated March 9, 2012, which is included in the annual report on Form 10-K. Our audits of the basic financial statements include the financial statement schedule listed in the index appearing under Item 15(2) which is the responsibility of the Company's management. In our opinion, this financial statement schedule, when considered in relation to the basic financial statements taken as a whole, presents fairly, in all material respects, the information set forth therein.

/s/ GRANT THORNTON LLP

Houston, Texas
March 9, 2012


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3,750,000 Shares

LOGO

Main Street Capital Corporation

Common Stock



PROSPECTUS SUPPLEMENT



RAYMOND JAMES

BAIRD
BB&T CAPITAL MARKETS
A DIVISION OF SCOTT & STRINGFELLOW, LLC
JANNEY MONTGOMERY SCOTT
LADENBURG THALMANN & CO. INC.
SANDERS MORRIS HARRIS

June 21, 2012