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 |
|---|---|---|---|---|---|---|---|---|
| Jun 2, 2026 | Jun 4 8:44 PM | Edward DeitzelEVP, CRO, CCO MIAX Exchanges | Sale | 11,000 | $42.16 | $463.8K | 116,221(D) | View → |
| Jun 2, 2026 | Jun 4 8:40 PM | Douglas M. Schafer JREVP and CIO | Sale | 48,000 | $42.84 | $2.1M | 396,681(D) | View → |
| Jun 2, 2026 | Jun 4 8:37 PM | Shelly BrownEVP, Chief Strategy Officer | Sale | 16,000 | $42.12 | $673.9K | 325,047(D) | View → |
| Jun 2, 2026 | Jun 4 8:37 PM | Thomas P. GallagherDirector, Chairman & CEO | Sale | 70,000 | $42.36 | $3.0M | 1,723,275(I) | View → |
| May 15, 2026 | May 18 8:52 PM | Lance EmmonsEVP and CFO | Sale | 35,000 | $56.36 | $2.0M | 84,262(D) | View → |
| May 15, 2026 | May 15 8:29 PM | Lance Emmons | Proposed Sale | 35,000 | $55.21 | $1.9M | — | View → |
| May 5, 2026 | May 7 8:07 PM | Thomas P. GallagherDirector, Chairman & CEO | Sale | 15,771 | $47.92 | $755.7K | 1,723,275(I) | View → |
| May 4, 2026 | May 5 12:17 PM | Thomas P. GallagherDirector, Chairman & CEO | Sale | 54,229 | $47.26 | $2.6M | 1,723,275(I) | View → |
| May 4, 2026 | May 5 12:16 PM | Edward DeitzelEVP, CRO, CCO MIAX Exchanges | Sale | 11,000 | $47.28 | $520.1K | 116,221(D) | View → |
| May 4, 2026 | May 5 11:43 AM | Shelly BrownEVP, Chief Strategy Officer | Sale | 16,000 | $47.28 | $756.5K | 325,047(D) | View → |
| May 4, 2026 | May 5 11:41 AM | Judson Gray TeekellDirector | Sale | 3,000 | $47.30 | $141.9K | 56,338(D) | View → |
| May 4, 2026 | May 5 11:32 AM | Douglas M. Schafer JREVP and CIO | Sale | 48,000 | $47.25 | $2.3M | 396,681(D) | View → |
| May 4, 2026 | May 5 11:31 AM | Kurt M. EckertDirector | Sale | 5,625 | $47.29 | $266.0K | 142,375(D) | View → |
| May 4, 2026 | May 5 11:30 AM | Barbara J. ComlyEVP, GC & Corporate Secretary | Sale | 28,000 | $47.26 | $1.3M | 843,844(D) | View → |
| May 4, 2026 | May 4 8:32 PM | J. GRAY TEEKELL | Proposed Sale | 9,000 | $47.17 | $424.5K | — | View → |
| May 4, 2026 | May 4 8:31 PM | SHELLY BROWN | Proposed Sale | 32,000 | $47.17 | $1.5M | — | View → |
| May 4, 2026 | May 4 8:31 PM | EDWARD DEITZEL | Proposed Sale | 33,000 | $47.17 | $1.6M | — | View → |
| Apr 15, 2026 | Apr 17 8:17 PM | Thomas P. GallagherDirector, Chairman & CEO | Sale | 224,025 | $43.43 | $9.7M | 485,963(I) | View → |
| Apr 15, 2026 | Apr 17 8:15 PM | Barbara J. ComlyEVP, GC & Corporate Secretary | Sale | 29,667 | $43.64 | $1.3M | 843,844(D) | View → |
| Apr 15, 2026 | Apr 15 8:55 PM | BARBARA J COMLY | Proposed Sale | 141,667 | $42.91 | $6.1M | — | 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 → |