2024 Annual Meeting of Stockholders

Hotel Emma, Cellar J, 136 East Grayson, San Antonio, Texas 78215

Main Street Capital Corporation First Quarter 2024 Conference Call

Dial 412-902-0030 at least 10 minutes before the call. A replay will be available through May 17, 2024 by dialing 201-612-7415 and using the access code 13745533#.

RBC Capital Markets – Global Financial Institutions Conference

Raymond James Annual Institutional Investors Conference

UBS Financial Services Conference

Main Street Capital Corporation Fourth Quarter 2023 Conference Call

Main Street Capital Corporation Third Quarter 2023 Conference Call