Main Street Capital Corporation announced that its Board of Directors declared regular monthly cash dividends of $0.26 per share for each of April, May and June 2026. These monthly dividends, which will be payable pursuant to the table below, total $0.78 per share for the second quarter of 2026 and are consistent with the regular monthly dividends declared for the first quarter of 2026 and represent a 4.0% increase from the regular monthly dividends paid in the second quarter of 2025. the Company announced its Second Quarter 2026 regular monthly dividends of $0.26 per share for each of the three months in the quarter.

For the April 2026 dividend, the ex-dividend date and record date are both April 8, 2026, and the payment date is April 15, 2026. For the May 2026 dividend, the ex-dividend date and record date are both May 8, 2026, and the payment date is May 15, 2026. For the June 2026 dividend, the ex-dividend date and record date are both June 8, 2026, and the payment date is June 15, 2026.