Main Street Capital's top three insider shareholders as of September 29, 2026 are Vincent D Foster (Chairman Of The Board, 1.68Mn shares), Dwayne L. Hyzak (Ceo, Smd, 508.68K shares), David L. Magdol (President, Cio And Smd, 441.14K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Vincent D Foster | Chairman Of The Board | 1,677,677 | 0 | 1,677,677 | 47.0% | 15 Sep, 2026 |
| 2 | Dwayne L. Hyzak | Ceo, Smd | 508,681 | 0 | 508,681 | 14.2% | 15 Sep, 2026 |
| 3 | David L. Magdol | President, Cio And Smd | 441,142 | 0 | 441,142 | 12.4% | 15 Sep, 2026 |
| 4 | Jesse E Morris | Evp And Coo | 232,568 | 0 | 232,568 | 6.5% | 24 Aug, 2026 |
| 5 | Jason B Beauvais | Evp, Gc, Secretary | 196,502 | 0 | 196,502 | 5.5% | 03 Sep, 2026 |
| 6 | Nicholas Meserve | Managing Director | 96,445 | 0 | 96,445 | 2.7% | 03 Apr, 2026 |
| 7 | John Earl Jackson | Director | 85,809 | 2,055 | 87,864 | 2.5% | 15 Sep, 2026 |
| 8 | Jon Kevin Griffin | Director | 74,914 | 0 | 74,914 | 2.1% | 15 Sep, 2026 |
| 9 | Brian E. Lane | Director | 53,322 | 0 | 53,322 | 1.5% | 15 Sep, 2026 |
| 10 | Stephen B Solcher | Director | 52,814 | 0 | 52,814 | 1.5% | 15 Sep, 2026 |
| 11 | Arthur L. French | Director | 31,322 | 0 | 31,322 | 0.9% | 29 Apr, 2022 |
| 12 | Ryan Robert Nelson | Cfo And Treasurer | 30,535 | 0 | 30,535 | 0.9% | 03 Apr, 2026 |
| 13 | Dunia A Shive | Director | 27,582 | 0 | 27,582 | 0.8% | 15 Sep, 2026 |
| 14 | Lance A Parker | Vp, Chief Accounting Officer | 25,745 | 0 | 25,745 | 0.7% | 09 Mar, 2023 |
| 15 | Ryan Mchugh | Vp, Cao Assistant Treasurer | 22,715 | 0 | 22,715 | 0.6% | 15 Sep, 2026 |
| 16 | Beverly Kay Matthews | Director | 12,136 | 0 | 12,136 | 0.3% | 09 Mar, 2023 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 14 Aug, 2026 | Jason B Beauvais | Evp, Gc, Secretary | Acquired J | 98 | $59.23 | $5.82K | 196,628 | Direct |
| 02 Sep, 2026 | Jason B Beauvais | Evp, Gc, Secretary | Disposed G | 126 | $0.00 | $0 | 196,502 | Direct |
| 21 Aug, 2026 | Jesse E Morris | Evp And Coo | Disposed S | 35,000 | $58.55 | $2.05Mn | 232,568 | Direct |
| 15 Jun, 2026 | Dunia A Shive | Director | Acquired J | 108 | $51.29 | $5.51K | 27,255 | Direct |
| 15 Jun, 2026 | Dwayne L. Hyzak | Ceo, Smd | Acquired J | 447 | $52.02 | $23.26K | 507,295 | Direct |
| 15 Jun, 2026 | John Earl Jackson | Director | Acquired J | 96 | $52.02 | $5.01K | 84,499 | Direct |
| 15 Jun, 2026 | David L. Magdol | President, Cio And Smd | Acquired J | 67 | $52.30 | $3.48K | 440,755 | Direct |
| 15 Jun, 2026 | Stephen B Solcher | Director | Acquired J | 206 | $51.29 | $10.55K | 52,188 | Direct |
| 15 Jun, 2026 | Jason B Beauvais | Evp, Gc, Secretary | Acquired J | 108 | $52.02 | $5.62K | 196,293 | Direct |
| 15 Jun, 2026 | Jon Kevin Griffin | Director | Acquired J | 22 | $52.02 | $1.14K | 73,809 | Direct |
| 15 Jun, 2026 | Vincent D Foster | Director | Acquired J | 14 | $52.02 | $739 | 1,672,871 | Direct |
| 15 Jun, 2026 | Brian E. Lane | Director | Acquired J | 71 | $52.02 | $3.68K | 52,332 | Direct |
| 15 Jun, 2026 | Ryan Mchugh | Vp, Cao Assistant Treasurer | Acquired J | 40 | $52.02 | $2.10K | 19,906 | Direct |
| 15 Jun, 2026 | Vincent D Foster | Director | Acquired J | 1,161 | $52.02 | $60.39K | 1,674,032 | Direct |
| 15 Jun, 2026 | John Earl Jackson | Director | Acquired J | 250 | $51.29 | $12.81K | 84,749 | Direct |
| 15 Jun, 2026 | Jon Kevin Griffin | Director | Acquired J | 256 | $51.29 | $13.14K | 74,065 | Direct |
| 15 Jun, 2026 | Ryan Mchugh | Vp, Cao Assistant Treasurer | Acquired J | 34 | $52.02 | $1.77K | 19,940 | Direct |
| 15 Jun, 2026 | David L. Magdol | President, Cio And Smd | Acquired J | 63 | $52.02 | $3.29K | 440,818 | Direct |
| 15 Jun, 2026 | Brian E. Lane | Director | Acquired J | 190 | $51.29 | $9.77K | 52,522 | Direct |
| 29 Jun, 2026 | Stephen B Solcher | Director | Acquired J | 237 | $51.56 | $12.23K | 52,425 | Direct |