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 |
|---|---|---|---|---|---|---|---|---|
| Jul 6, 2026 | Jul 6 8:33 PM | HARISH JAYABALAN | Proposed Sale | 20,000 | $40.84 | $816.8K | — | View → |
| Jul 6, 2026 | Jul 6 8:32 PM | SHELLY BROWN | Proposed Sale | 16,000 | $40.84 | $653.4K | — | View → |
| Jul 2, 2026 | Jul 2 8:31 PM | DOUGLAS M. SCHAFER JR. | Proposed Sale | 144,000 | $39.05 | $5.6M | — | View → |
| Jul 2, 2026 | Jul 2 8:30 PM | KURT M. ECKERT | Proposed Sale | 6,313 | $39.05 | $246.5K | — | View → |
| Jun 15, 2026 | Jun 17 8:08 PM | Shelly BrownEVP, Chief Strategy Officer | Sale | 4,714 | $44.23 | $208.5K | 316,714(D) | View → |
| Jun 15, 2026 | Jun 15 8:53 PM | SHELLY BROWN | Proposed Sale | 4,714 | $43.29 | $204.1K | — | View → |
| Jun 11, 2026 | Jun 12 8:15 PM | Cynthia SchwarzkopfDirector | Sale | 19,500 | $41.73 | $813.7K | 81,308(D) | View → |
| Jun 11, 2026 | Jun 11 8:26 PM | CYNTHIA SCHWARZKOPF | Proposed Sale | 19,500 | $40.79 | $795.4K | — | View → |
| Jun 9, 2026 | Jun 10 8:29 PM | Harish JayabalanEVP, CISO and CRO | Sale | 9,783 | $40.04 | $391.7K | 73,405(D) | View → |
| Jun 8, 2026 | Jun 10 8:29 PM | Harish JayabalanEVP, CISO and CRO | Sale | 10,217 | $40.12 | $409.9K | 73,405(D) | View → |
| Jun 8, 2026 | Jun 8 8:37 PM | HARISH JAYABALAN | Proposed Sale | 20,000 | $39.21 | $784.2K | — | View → |
| Jun 2, 2026 | Jun 4 8:55 PM | Judson Gray TeekellDirector | Sale | 3,000 | $42.78 | $128.3K | 71,014(D) | View → |
| Jun 2, 2026 | Jun 4 8:52 PM | Kurt M. EckertDirector | Sale | 5,250 | $42.76 | $224.5K | 142,375(D) | View → |
| Jun 2, 2026 | Jun 4 8:46 PM | Barbara J. ComlyEVP, GC & Corporate Secretary | Sale | 28,000 | $42.85 | $1.2M | 843,844(D) | View → |
| 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 → |
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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