Private Credit Team

Dwayne Hyzak

Member of the Board and Chief Executive Officer

Mr. Hyzak has served as Main Street’s Chief Executive Officer since November 2018 and as a member of our Board since January 2018. Mr. Hyzak also serves as a member of our management team’s executive and investment committees. Mr. Hyzak previously served in several executive roles from 2011 to 2018, including as our President (2015 until November 2018), Chief Operating Officer (2014 until November 2018), Chief Financial Officer (2011 until 2014) and Senior Managing Director since 2011 and also served in other senior executive positions at Main Street prior to 2011. Prior to our IPO in 2007, Mr. Hyzak served as a Senior Managing Director and other executive positions of several Main Street predecessor funds and entities, which are now our subsidiaries. Mr. Hyzak joined Main Street in 2002, becoming one of the founding members of the firm. Since October 2020, Mr. Hyzak has also served as the Chief Executive Officer and Chairman of the Board of MSC Income. Prior to joining Main Street, 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. Previously, Mr. Hyzak was a Manager with Arthur Andersen in its Transaction Advisory Services group. Mr. Hyzak currently serves on the board of directors of Child Advocates, a non-profit organization that trains and supports advocates to serve the interests of abused or neglected children in the greater Houston area.

Nick Meserve

Managing Director

Nick Meserve is a Managing Director on our private credit investment team. Mr. Meserve’s responsibilities include managing a portfolio of private loan and middle market investments. He is also responsible for sourcing, originating and executing on new investments for the firm. Since October 2020, Mr. Meserve has also served as a Managing Director of MSC Income. Prior to joining Main Street in 2012, Mr. Meserve was at Highland Capital Management, LP, a large alternative credit manager, and certain of its affiliates, where he managed a portfolio of senior loans and high yield bonds across a diverse set of industries. Prior to Highland, he was a Credit Analyst at JP Morgan Chase & Co.

Sammy Cashiola

Managing Director

Sammy Cashiola is a Managing Director on our private credit investment team. Mr. Cashiola has served as a Managing Director since January 2019 and in various other roles since joining Main Street in 2012 and has also served as a Managing Director of MSC Income since October 2020. Mr. Cashiola’s responsibilities include managing a portfolio of private loan and middle market investments. He is also responsible for sourcing, originating and executing on new investments for the firm. Prior to joining Main Street, Mr. Cashiola was an Associate Analyst on Morgan Keegan’s Internet & e-Commerce Equity Research team, which focused on companies in the digital media and ecommerce segments, and an Associate at T. Rowe Price Associates.

Charles Jennings

Director

Charles Jennings has served as a Director since 2023 and has been with Main Street in various roles since joining in 2017. Mr. Jennings received his B.A. in Economics from the University of Pennsylvania in 2012 and his Masters of Science in Finance from the University of Texas at Austin in 2013. Before joining Main Street, Charles worked with BHP Billiton Petroleum’s finance group.

John Watson

Director

John Watson has served as a Director since 2022 and has been with Main Street in various roles since joining in 2017. Prior to joining Main Street, John worked as an Investment Banking Analyst at Stephens, Inc. in Dallas, a middle-market investment bank specializing in mergers and acquisitions, underwritings of public debt and equity securities, and private placements of debt and equity. Mr. Watson graduated from the University of Texas at Austin with a B.B.A. in Corporate Finance.

Carlos Gilson

Senior Associate

Carlos Gilson is an Senior Associate on Main Street’s Private Credit Team.

Prior to Main Street, Mr. Gilson was a Corporate Banking Analyst at Bank of America in New York where he analyzed acquisition financings, capital structures and ratings across various large corporations in the industrials sector. Mr. Gilson graduated Summa Cum Laude from Oklahoma State University receiving a BSBA in Finance with Computer Science and Accounting minors.

Brianna Grieco

Senior Associate

Brianna Grieco has served as a Senior Associate on the Private Credit investment team since July 2023 and has been with Main Street in various roles since joining in 2019. Ms. Grieco graduated from The University of Texas at Austin Red McCombs School of Business with a Bachelor of Business Administration in Finance and a Minor in Management Information Systems. As an undergraduate, Ms. Grieco participated in two professional internships, as a Summer Analyst with Goldman Sachs in 2017 and as a Summer Analyst with Main Street in 2018.

Daniel Jin

Associate

Daniel Jin is an Associate at Main Street’s Private Credit Team.

Mr. Jin graduated from The University of Texas at Austin, McCombs School of Business with a Bachelor of Business Administration, a Computer Science Certificate, and a Minor in Management Information Systems. As an undergraduate, Mr. Jin participated in two professional internships, as a Summer Analyst with Legacy Star Capital Partners and as a Summer Analyst with Main Street in 2021.

Alanson Tobias

Associate

Alanson Tobias is an Associate on Main Street’s Private Credit team.

Prior to Main Street, Mr. Tobias was an Investment Banking Analyst at BMO Capital Markets in Chicago. While at BMO Capital Markets, Mr. Tobias focused on the origination, structuring, and syndication of leveraged, pro rata debt for diversified middle market clients. Mr. Tobias graduated cum laude and Phi Beta Kappa from the University of Iowa receiving a Bachelor of Science in Mathematics and Economics.

Marissa Topolski

Associate

Marissa Topolski joined Main Street Capital as an Associate in 2022. Prior to joining Main Street, Ms. Topolski served as an Analyst SenaHill Partners where she spent her time focusing on venture debt transactions in the technology sector and Tudor Pickering Holt and Co. where she spent her time focusing on sell-side merger and acquisition assignments in the energy sector. Ms. Topolski received a B.B.A in Cognitive Sciences with honors from Rice University.

Jonah Crain

Analyst

Jonah Crain graduated summa cum laude from the M.J. Neeley School of Business at Texas Christian University, earning a Bachelor of Business Administration in Finance and Accounting. Mr. Crain was a Summer Analyst with Main Street in 2022.

Aryan Malhotra

Analyst

Aryan Malhotra is an Analyst on Main Street's Private Credit Team

Mr. Malhotra graduated from the University of Texas at Austin, receiving a Bachelor of Science in Mechanical Engineering with a minor in Business Administration. As an undergraduate, Mr. Malhotra was a Private Credit Intern with TCW in 2023.

Gabrielle Vaughn

Operations and Data Analyst

Gabrielle Vaughn is an Operations & Data Analyst on Main Street’s Private Credit team. Ms. Vaughn formerly served as Administrative Assistant to the Managing Directors of the Private Credit team.  She is a member of the Junior League of Houston, having previously been a member of the Junior League of Baton Rouge, and formerly served as Vice President of Cultural Diversity for Forum 225 and Advisory Board Member of Capital Area ReEntry Coalition in Baton Rouge. Ms. Vaughn graduated from Louisiana State University, receiving a B.A. in Anthropology.