MIAMI INTERNATIONAL HOLDINGS, INC.
MIAX
110 insider filings · Latest: Oct 2, 2026
Common Stock Transactions
| Txn Date | Accepted | Insider | Type | Shares | Avg Price | Value | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|---|
| 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 → |
| 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 |
|---|---|---|---|---|---|---|---|
| Oct 2, 2026 | Oct 6 9:28 PM | Douglas M. Schafer JREVP and CIO | Option Exercise | 40,000 | $12.00 | 155,334(D) | View → |
| Sep 25, 2026 | Sep 29 8:46 PM | Harish JayabalanEVP, CISO and CRO | Option Exercise | 8,333 | $12.00 | 8,333(D) | View → |
| Sep 3, 2026 | Sep 4 8:35 PM | Thomas P. GallagherDirector, Chairman & CEO | Option Exercise | 89,603 | $22.40 | 8,928(I) | View → |
| Sep 2, 2026 | Sep 4 8:31 PM | Barbara J. ComlyEVP, GC & Corporate Secretary | Option Exercise | 44,445 | $12.00 | 44,444(D) | View → |
| Sep 3, 2026 | Sep 4 8:28 PM | Edward DeitzelEVP, CRO, CCO MIAX Exchanges | Option Exercise | 11,000 | $12.00 | 66,000(D) | View → |
| Sep 2, 2026 | Sep 4 8:25 PM | Douglas M. Schafer JREVP and CIO | Option Exercise | 48,000 | $12.00 | 195,334(D) | View → |
| Aug 17, 2026 | Aug 19 8:12 PM | Cynthia SchwarzkopfDirector | Option Exercise | 5,000 | $12.00 | 11,916(D) | View → |
| 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 → |
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