Form 4 Tracker
MIAMI INTERNATIONAL HOLDINGS, INC.
MIAX

97 insider filings · Latest: Aug 4, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Jul 6, 2026Jul 7 8:13 PMEdward DeitzelEVP, CRO, CCO MIAX Exchanges
Sale
11,000$42.04$462.4K119,601(D)

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Jul 6, 2026Jul 7 8:10 PMShelly BrownEVP, Chief Strategy Officer
Sale
16,000$42.13$674.1K353,990(D)

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Jul 2, 2026Jul 7 8:09 PMJudson Gray TeekellDirector
Sale
3,000$40.00$120.0K75,251(D)

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Jul 2, 2026Jul 7 8:08 PMKurt M. EckertDirector
Sale
5,250$39.35$206.6K149,612(D)

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Jul 2, 2026Jul 7 8:06 PMBarbara J. ComlyEVP, GC & Corporate Secretary
Sale
28,000$41.22$1.2M882,984(D)

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Jul 2, 2026Jul 7 8:06 PMDouglas M. Schafer JREVP and CIO
Sale
48,000$41.22$2.0M387,414(D)

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Jul 6, 2026Jul 6 8:33 PMHARISH JAYABALAN
Proposed Sale
20,000$40.84$816.8K

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Jul 6, 2026Jul 6 8:32 PMSHELLY BROWN
Proposed Sale
16,000$40.84$653.4K

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Jul 2, 2026Jul 2 8:31 PMDOUGLAS M. SCHAFER JR.
Proposed Sale
144,000$39.05$5.6M

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Jul 2, 2026Jul 2 8:30 PMKURT M. ECKERT
Proposed Sale
6,313$39.05$246.5K

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Jun 15, 2026Jun 17 8:08 PMShelly BrownEVP, Chief Strategy Officer
Sale
4,714$44.23$208.5K316,714(D)

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Jun 15, 2026Jun 15 8:53 PMSHELLY BROWN
Proposed Sale
4,714$43.29$204.1K

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Jun 11, 2026Jun 12 8:15 PMCynthia SchwarzkopfDirector
Sale
19,500$41.73$813.7K81,308(D)

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Jun 11, 2026Jun 11 8:26 PMCYNTHIA SCHWARZKOPF
Proposed Sale
19,500$40.79$795.4K

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Jun 9, 2026Jun 10 8:29 PMHarish JayabalanEVP, CISO and CRO
Sale
9,783$40.04$391.7K73,405(D)

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Jun 8, 2026Jun 10 8:29 PMHarish JayabalanEVP, CISO and CRO
Sale
10,217$40.12$409.9K73,405(D)

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Jun 8, 2026Jun 8 8:37 PMHARISH JAYABALAN
Proposed Sale
20,000$39.21$784.2K

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Jun 2, 2026Jun 4 8:55 PMJudson Gray TeekellDirector
Sale
3,000$42.78$128.3K71,014(D)

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Jun 2, 2026Jun 4 8:52 PMKurt M. EckertDirector
Sale
5,250$42.76$224.5K142,375(D)

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Jun 2, 2026Jun 4 8:46 PMBarbara J. ComlyEVP, GC & Corporate Secretary
Sale
28,000$42.85$1.2M843,844(D)

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Jun 2, 2026Jun 4 8:40 PMDouglas M. Schafer JREVP and CIO
Option Exercise
48,000$12.006,000(D)

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Jun 2, 2026Jun 4 8:37 PMShelly BrownEVP, Chief Strategy Officer
Option Exercise
16,000$12.0016,000(D)

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Jun 2, 2026Jun 4 8:37 PMThomas P. GallagherDirector, Chairman & CEO
Option Exercise
70,000$12.00140,000(I)

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May 19, 2026May 19 8:34 PMJudson Gray TeekellDirector
Option Exercise
22,667$12.000(D)

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May 11, 2026May 13 8:26 PMThomas P. GallagherDirector, Chairman & CEO
Option Exercise
24,999$12.000(D)

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May 5, 2026May 7 8:07 PMThomas P. GallagherDirector, Chairman & CEO
Option Exercise
15,771$12.00210,000(I)

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May 4, 2026May 5 12:17 PMThomas P. GallagherDirector, Chairman & CEO
Option Exercise
54,229$12.00225,771(I)

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May 4, 2026May 5 12:16 PMEdward DeitzelEVP, CRO, CCO MIAX Exchanges
Option Exercise
11,000$12.0018,333(D)

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May 4, 2026May 5 11:43 AMShelly BrownEVP, Chief Strategy Officer
Option Exercise
16,000$12.0032,000(D)

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May 4, 2026May 5 11:32 AMDouglas M. Schafer JREVP and CIO
Option Exercise
48,000$12.0054,000(D)

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May 4, 2026May 5 11:31 AMKurt M. EckertDirector
Option Exercise
5,625$12.0011,563(D)

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May 4, 2026May 5 11:30 AMBarbara J. ComlyEVP, GC & Corporate Secretary
Option Exercise
28,000$12.0084,000(D)

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Apr 15, 2026Apr 17 8:17 PMThomas P. GallagherDirector, Chairman & CEO
Option Exercise
70,001$12.00280,000(I)

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Apr 15, 2026Apr 17 8:15 PMBarbara J. ComlyEVP, GC & Corporate Secretary
Option Exercise
29,667$12.00112,000(D)

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Apr 9, 2026Apr 10 10:41 PMJohn BeckelmanDirector
Option Exercise
8,667$12.000(D)

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Apr 8, 2026Apr 9 8:20 PMShelly BrownEVP, Chief Strategy Officer
Option Exercise
16,434$12.0048,000(D)

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Apr 8, 2026Apr 9 8:15 PMEdward DeitzelEVP, CRO, CCO MIAX Exchanges
Option Exercise
7,572$12.000(D)

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Apr 7, 2026Apr 9 8:15 PMEdward DeitzelEVP, CRO, CCO MIAX Exchanges
Option Exercise
4,763$12.0029,333(D)

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Apr 7, 2026Apr 9 8:13 PMShelly BrownEVP, Chief Strategy Officer
Option Exercise
900$12.0064,434(D)

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Mar 30, 2026Apr 1 8:45 PMShelly BrownEVP, Chief Strategy Officer
Option Exercise
30,016$25.780(D)

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