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 |
|---|---|---|---|---|---|---|---|---|
| Aug 4, 2026 | Aug 6 8:11 PM | Kurt M. EckertDirector | Sale | 1,063 | $45.80 | $48.7K | 149,612(D) | View → |
| Aug 4, 2026 | Aug 6 8:10 PM | Judson Gray TeekellDirector | Sale | 3,000 | $45.79 | $137.4K | 72,251(D) | View → |
| Aug 4, 2026 | Aug 6 8:10 PM | Harish JayabalanEVP, CISO and CRO | Sale | 20,000 | $45.90 | $918.0K | 78,065(D) | View → |
| Aug 4, 2026 | Aug 6 8:09 PM | Barbara J. ComlyEVP, GC & Corporate Secretary | Sale | 44,445 | $45.69 | $2.0M | 882,984(D) | View → |
| Aug 4, 2026 | Aug 6 8:08 PM | Edward DeitzelEVP, CRO, CCO MIAX Exchanges | Sale | 11,000 | $45.78 | $503.6K | 119,601(D) | View → |
| Aug 4, 2026 | Aug 6 8:06 PM | Douglas M. Schafer JREVP and CIO | Sale | 48,000 | $45.71 | $2.2M | 387,414(D) | View → |
| Aug 4, 2026 | Aug 6 8:05 PM | Thomas P. GallagherDirector, Chairman & CEO | Sale | 48,334 | $45.69 | $2.2M | 1,723,275(I) | View → |
| Aug 4, 2026 | Aug 4 8:34 PM | GALLAGHER INVESTMENTS LLC | Proposed Sale | 48,334 | $46.83 | $2.3M | — | View → |
| Aug 4, 2026 | Aug 4 8:33 PM | J. GRAY TEEKELL | Proposed Sale | 6,000 | $46.83 | $281.0K | — | View → |
| Aug 4, 2026 | Aug 4 8:32 PM | HARISH JAYABALAN | Proposed Sale | 63,902 | $46.83 | $3.0M | — | View → |
| Aug 4, 2026 | Aug 4 8:31 PM | BARBARA J. COMLY | Proposed Sale | 180,557 | $46.83 | $8.5M | — | View → |
| Aug 4, 2026 | Aug 4 8:30 PM | EDWARD DEITZEL | Proposed Sale | 44,000 | $46.83 | $2.1M | — | View → |
| Jul 15, 2026 | Jul 16 8:15 PM | Cynthia SchwarzkopfDirector | Sale | 5,000 | $42.00 | $210.0K | 88,545(D) | View → |
| Jul 15, 2026 | Jul 15 8:30 PM | CYNTHIA SCHWARZKOPF | Proposed Sale | 15,000 | $41.30 | $619.5K | — | View → |
| Jul 13, 2026 | Jul 14 8:07 PM | Barbara J. ComlyEVP, GC & Corporate Secretary | Sale | 28,000 | $41.98 | $1.2M | 882,984(D) | View → |
| Jul 13, 2026 | Jul 14 8:04 PM | Thomas P. GallagherDirector, Chairman & CEO | Sale | 70,000 | $42.52 | $3.0M | 1,723,275(I) | View → |
| Jul 7, 2026 | Jul 7 9:03 PM | Thomas P. GallagherDirector, Chairman & CEO | Sale | 28,228 | $42.27 | $1.2M | 1,723,275(I) | View → |
| Jul 6, 2026 | Jul 7 9:03 PM | Thomas P. GallagherDirector, Chairman & CEO | Sale | 41,772 | $42.09 | $1.8M | 1,723,275(I) | View → |
| Jul 6, 2026 | Jul 7 8:14 PM | Harish JayabalanEVP, CISO and CRO | Sale | 20,000 | $42.12 | $842.4K | 78,065(D) | View → |
| Jul 6, 2026 | Jul 7 8:13 PM | Edward DeitzelEVP, CRO, CCO MIAX Exchanges | Sale | 11,000 | $42.04 | $462.4K | 119,601(D) | View → |
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Stock Options & Derivatives
| Txn Date | Accepted | Insider | Type | Shares | Exercise Price | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|
| Aug 4, 2026 | Aug 6 8:11 PM | Kurt M. EckertDirector | Option Exercise | 1,063 | $12.00 | 0(D) | View → |
| Aug 4, 2026 | Aug 6 8:10 PM | Harish JayabalanEVP, CISO and CRO | Option Exercise | 20,000 | $15.22 | 17,598(D) | View → |
| Aug 4, 2026 | Aug 6 8:09 PM | Barbara J. ComlyEVP, GC & Corporate Secretary | Option Exercise | 44,445 | $12.00 | 88,889(D) | View → |
| Aug 4, 2026 | Aug 6 8:08 PM | Edward DeitzelEVP, CRO, CCO MIAX Exchanges | Option Exercise | 11,000 | $12.00 | 77,000(D) | View → |
| Aug 4, 2026 | Aug 6 8:06 PM | Douglas M. Schafer JREVP and CIO | Option Exercise | 48,000 | $12.00 | 43,334(D) | View → |
| Aug 4, 2026 | Aug 6 8:05 PM | Thomas P. GallagherDirector, Chairman & CEO | Option Exercise | 48,334 | $12.00 | 235,000(I) | View → |
| Jul 15, 2026 | Jul 16 8:15 PM | Cynthia SchwarzkopfDirector | Option Exercise | 5,000 | $12.00 | 16,916(D) | View → |
| Jul 13, 2026 | Jul 14 8:07 PM | Barbara J. ComlyEVP, GC & Corporate Secretary | Option Exercise | 28,000 | $12.00 | 0(D) | View → |
| Jul 13, 2026 | Jul 14 8:04 PM | Thomas P. GallagherDirector, Chairman & CEO | Option Exercise | 70,000 | $12.00 | 0(I) | View → |
| Jul 7, 2026 | Jul 7 9:03 PM | Thomas P. GallagherDirector, Chairman & CEO | Option Exercise | 28,228 | $12.00 | 70,000(I) | View → |
| Jul 6, 2026 | Jul 7 9:03 PM | Thomas P. GallagherDirector, Chairman & CEO | Option Exercise | 41,772 | $12.00 | 98,228(I) | View → |
| Jul 6, 2026 | Jul 7 8:14 PM | Harish JayabalanEVP, CISO and CRO | Option Exercise | 20,000 | $12.00 | 14,168(D) | View → |
| Jul 6, 2026 | Jul 7 8:13 PM | Edward DeitzelEVP, CRO, CCO MIAX Exchanges | Option Exercise | 11,000 | $12.00 | 88,000(D) | View → |
| Jul 6, 2026 | Jul 7 8:10 PM | Shelly BrownEVP, Chief Strategy Officer | Option Exercise | 16,000 | $12.00 | 0(D) | View → |
| Jul 2, 2026 | Jul 7 8:08 PM | Kurt M. EckertDirector | Option Exercise | 5,250 | $12.00 | 1,063(D) | View → |
| Jul 2, 2026 | Jul 7 8:06 PM | Barbara J. ComlyEVP, GC & Corporate Secretary | Option Exercise | 28,000 | $12.00 | 28,000(D) | View → |
| Jul 2, 2026 | Jul 7 8:06 PM | Douglas M. Schafer JREVP and CIO | Option Exercise | 48,000 | $12.00 | 91,334(D) | View → |
| Jun 16, 2026 | Jun 18 8:39 PM | Cees VermaasCEO of TISEG | Grant/Award | 4,793 | $40.24 | 4,793(D) | View → |
| Jun 16, 2026 | Jun 18 8:31 PM | Harish JayabalanEVP, CISO and CRO | Grant/Award | 37,293 | $40.24 | 34,808(D) | View → |
| Jun 16, 2026 | Jun 18 8:29 PM | Edward DeitzelEVP, CRO, CCO MIAX Exchanges | Grant/Award | 9,586 | $40.24 | 7,101(D) | View → |
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