| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Meserve Nicholas | MANAGING DIRECTOR | 1300 POST OAK BLVD, 8TH FLOOR, HOUSTON | /s/ Jason B. Beauvais, Attorney-in-Fact | 2025-08-14 | 0001563461 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MAIN | Common Stock | Gift | $0 | -1K | -1.03% | $0.00 | 96.4K | Aug 14, 2025 | Direct | F1 |
| transaction | MAIN | Common Stock | Sale | -$940K | -14K | -14.53% | $67.15 | 82.4K | Aug 14, 2025 | Direct | F2 |
| Id | Content |
|---|---|
| F1 | The reporting person transferred these shares as a gift pursuant to a transaction exempt from Section 16(b) under Rule 16b-5. |
| F2 | The price reported is a weighted average price. These shares were sold in multiple transaction at prices ranging from $67.06 to $67.28, inclusive. The reporting person undertakes to provide to Main Street Capital Corporation, any of its security holders, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. |