Form 4 Filing for McHugh Ryan

Ryan McHugh, VP, CAO & Assistant Treasurer of Main Street Capital CORP, reported the acquisition of 38.8267 shares of Common Stock on September 15, 2026, at a price of $56.37 per share. This transaction, under transaction code J, resulted in a post-transaction share count of 22753.6465 shares. On the same day, an additional 44.726 shares were acquired at the same price, increasing the post-transaction share count to 22798.3725. Further acquisitions occurred on September 28, 2026, with 45.1793 shares bought at $55.10, leading to 22843.5518 shares, followed by 52.044 shares at $55.10, bringing the total to 22895.5958 shares. These acquisitions were made under a dividend reinvestment plan, exempt from Section 16 under Rule 16a-11.