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 |
|---|---|---|---|---|---|---|---|---|
| Mar 17, 2026 | Mar 17 8:29 PM | DOUGLAS M. SCHAFER JR. | Proposed Sale | 144,000 | $39.49 | $5.7M | — | View → |
| Mar 5, 2026 | Mar 6 10:57 PM | Murray StahlDirector | Purchase | 7,200 | $43.08 | $310.2K | 4,633,842(I) | View → |
| Mar 4, 2026 | Mar 6 10:52 PM | Murray StahlDirector | Purchase | 7,200 | $43.38 | $312.3K | 4,626,642(I) | View → |
| Mar 2, 2026 | Mar 6 9:12 PM | Murray StahlDirector | Sale | 53,578 | $40.92 | $2.2M | 4,619,442(I) | View → |
| Mar 4, 2026 | Mar 5 7:44 PM | Murray StahlDirector | Purchase | 7,200 | $43.38 | $312.3K | 4,696,666(I) | View → |
| Mar 2, 2026 | Mar 4 8:22 PM | Murray StahlDirector | Sale | 121,054 | $40.92 | $5.0M | 4,689,466(I) | 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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