MIAMI INTERNATIONAL HOLDINGS, INC.
MIAX
97 insider filings · Latest: Aug 4, 2026
Common Stock Transactions
| Txn Date | Accepted | Insider | Type | Shares | Avg Price | Value | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|---|
| Apr 15, 2026 | Apr 15 8:53 PM | GALLAGHER INVESTMENTS LLC | Proposed Sale | 454,125 | $42.91 | $19.5M | — | View → |
| Apr 15, 2026 | Apr 15 8:42 PM | THOMAS P GALLAGHER | Proposed Sale | 49,900 | $42.91 | $2.1M | — | View → |
| Apr 8, 2026 | Apr 9 8:20 PM | Shelly BrownEVP, Chief Strategy Officer | Sale | 16,434 | $42.08 | $691.5K | 325,047(D) | View → |
| Apr 8, 2026 | Apr 9 8:15 PM | Edward DeitzelEVP, CRO, CCO MIAX Exchanges | Sale | 7,572 | $42.02 | $318.2K | 116,221(D) | View → |
| Apr 7, 2026 | Apr 9 8:15 PM | Edward DeitzelEVP, CRO, CCO MIAX Exchanges | Sale | 4,763 | $42.00 | $200.0K | 116,221(D) | View → |
| Apr 7, 2026 | Apr 9 8:13 PM | Shelly BrownEVP, Chief Strategy Officer | Sale | 900 | $42.00 | $37.8K | 325,047(D) | View → |
| Apr 6, 2026 | Apr 9 8:13 PM | Shelly BrownEVP, Chief Strategy Officer | Sale | 2,357 | $41.33 | $97.4K | 325,047(D) | View → |
| Apr 7, 2026 | Apr 8 8:19 PM | Shelly BrownEVP, Chief Strategy Officer | Sale | 900 | $42.00 | $37.8K | 324,147(D) | View → |
| Apr 6, 2026 | Apr 8 8:19 PM | Shelly BrownEVP, Chief Strategy Officer | Sale | 2,357 | $41.33 | $97.4K | 325,047(D) | View → |
| Apr 7, 2026 | Apr 7 8:30 PM | EDWARD DEITZEL | Proposed Sale | 12,335 | $41.63 | $513.5K | — | View → |
| Apr 7, 2026 | Apr 7 8:29 PM | SHELLY BROWN | Proposed Sale | 17,334 | $41.63 | $721.6K | — | View → |
| Apr 6, 2026 | Apr 6 8:25 PM | SHELLY BROWN | Proposed Sale | 2,357 | $40.17 | $94.7K | — | View → |
| Apr 2, 2026 | Apr 3 12:48 PM | Judson Gray TeekellDirector | Sale | 2,700 | $40.00 | $108.0K | 59,338(D) | View → |
| Mar 25, 2026 | Mar 26 8:32 PM | Judson Gray TeekellDirector | Sale | 300 | $40.00 | $12.0K | 62,038(D) | View → |
| Mar 25, 2026 | Mar 25 8:23 PM | J. GRAY TEEKELL | Proposed Sale | 3,000 | $39.46 | $118.4K | — | View → |
| Mar 23, 2026 | Mar 24 9:28 PM | Shelly BrownEVP, Chief Strategy Officer | Sale | 25,932 | $39.33 | $1.0M | 299,197(D) | View → |
| Mar 23, 2026 | Mar 23 8:35 PM | SHELLY BROWN | Proposed Sale | 25,932 | $39.10 | $1.0M | — | View → |
| Mar 19, 2026 | Mar 20 8:48 PM | Kurt M. EckertDirector | Sale | 37,917 | $39.00 | $1.5M | 142,375(D) | View → |
| Mar 19, 2026 | Mar 19 8:19 PM | KURT M ECKERT | Proposed Sale | 48,792 | $39.55 | $1.9M | — | View → |
| Mar 17, 2026 | Mar 18 8:23 PM | Douglas M. Schafer JREVP and CIO | Sale | 48,000 | $39.74 | $1.9M | 396,681(D) | View → |
Stock Options & Derivatives
| Txn Date | Accepted | Insider | Type | Shares | Exercise Price | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|
| Jun 2, 2026 | Jun 4 8:40 PM | Douglas M. Schafer JREVP and CIO | Option Exercise | 48,000 | $12.00 | 6,000(D) | View → |
| Jun 2, 2026 | Jun 4 8:37 PM | Shelly BrownEVP, Chief Strategy Officer | Option Exercise | 16,000 | $12.00 | 16,000(D) | View → |
| Jun 2, 2026 | Jun 4 8:37 PM | Thomas P. GallagherDirector, Chairman & CEO | Option Exercise | 70,000 | $12.00 | 140,000(I) | View → |
| May 19, 2026 | May 19 8:34 PM | Judson Gray TeekellDirector | Option Exercise | 22,667 | $12.00 | 0(D) | View → |
| May 11, 2026 | May 13 8:26 PM | Thomas P. GallagherDirector, Chairman & CEO | Option Exercise | 24,999 | $12.00 | 0(D) | View → |
| May 5, 2026 | May 7 8:07 PM | Thomas P. GallagherDirector, Chairman & CEO | Option Exercise | 15,771 | $12.00 | 210,000(I) | View → |
| May 4, 2026 | May 5 12:17 PM | Thomas P. GallagherDirector, Chairman & CEO | Option Exercise | 54,229 | $12.00 | 225,771(I) | View → |
| May 4, 2026 | May 5 12:16 PM | Edward DeitzelEVP, CRO, CCO MIAX Exchanges | Option Exercise | 11,000 | $12.00 | 18,333(D) | View → |
| May 4, 2026 | May 5 11:43 AM | Shelly BrownEVP, Chief Strategy Officer | Option Exercise | 16,000 | $12.00 | 32,000(D) | View → |
| May 4, 2026 | May 5 11:32 AM | Douglas M. Schafer JREVP and CIO | Option Exercise | 48,000 | $12.00 | 54,000(D) | View → |
| May 4, 2026 | May 5 11:31 AM | Kurt M. EckertDirector | Option Exercise | 5,625 | $12.00 | 11,563(D) | View → |
| May 4, 2026 | May 5 11:30 AM | Barbara J. ComlyEVP, GC & Corporate Secretary | Option Exercise | 28,000 | $12.00 | 84,000(D) | View → |
| Apr 15, 2026 | Apr 17 8:17 PM | Thomas P. GallagherDirector, Chairman & CEO | Option Exercise | 70,001 | $12.00 | 280,000(I) | View → |
| Apr 15, 2026 | Apr 17 8:15 PM | Barbara J. ComlyEVP, GC & Corporate Secretary | Option Exercise | 29,667 | $12.00 | 112,000(D) | View → |
| Apr 9, 2026 | Apr 10 10:41 PM | John BeckelmanDirector | Option Exercise | 8,667 | $12.00 | 0(D) | View → |
| Apr 8, 2026 | Apr 9 8:20 PM | Shelly BrownEVP, Chief Strategy Officer | Option Exercise | 16,434 | $12.00 | 48,000(D) | View → |
| Apr 8, 2026 | Apr 9 8:15 PM | Edward DeitzelEVP, CRO, CCO MIAX Exchanges | Option Exercise | 7,572 | $12.00 | 0(D) | View → |
| Apr 7, 2026 | Apr 9 8:15 PM | Edward DeitzelEVP, CRO, CCO MIAX Exchanges | Option Exercise | 4,763 | $12.00 | 29,333(D) | View → |
| Apr 7, 2026 | Apr 9 8:13 PM | Shelly BrownEVP, Chief Strategy Officer | Option Exercise | 900 | $12.00 | 64,434(D) | View → |
| Mar 30, 2026 | Apr 1 8:45 PM | Shelly BrownEVP, Chief Strategy Officer | Option Exercise | 30,016 | $25.78 | 0(D) | View → |