Form 4 Tracker
MIAMI INTERNATIONAL HOLDINGS, INC.
MIAX

97 insider filings · Latest: Aug 4, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Jun 2, 2026Jun 4 8:44 PMEdward DeitzelEVP, CRO, CCO MIAX Exchanges
Sale
11,000$42.16$463.8K116,221(D)

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Jun 2, 2026Jun 4 8:40 PMDouglas M. Schafer JREVP and CIO
Sale
48,000$42.84$2.1M396,681(D)

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Jun 2, 2026Jun 4 8:37 PMShelly BrownEVP, Chief Strategy Officer
Sale
16,000$42.12$673.9K325,047(D)

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Jun 2, 2026Jun 4 8:37 PMThomas P. GallagherDirector, Chairman & CEO
Sale
70,000$42.36$3.0M1,723,275(I)

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May 15, 2026May 18 8:52 PMLance EmmonsEVP and CFO
Sale
35,000$56.36$2.0M84,262(D)

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May 15, 2026May 15 8:29 PMLance Emmons
Proposed Sale
35,000$55.21$1.9M

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May 5, 2026May 7 8:07 PMThomas P. GallagherDirector, Chairman & CEO
Sale
15,771$47.92$755.7K1,723,275(I)

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May 4, 2026May 5 12:17 PMThomas P. GallagherDirector, Chairman & CEO
Sale
54,229$47.26$2.6M1,723,275(I)

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May 4, 2026May 5 12:16 PMEdward DeitzelEVP, CRO, CCO MIAX Exchanges
Sale
11,000$47.28$520.1K116,221(D)

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May 4, 2026May 5 11:43 AMShelly BrownEVP, Chief Strategy Officer
Sale
16,000$47.28$756.5K325,047(D)

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May 4, 2026May 5 11:41 AMJudson Gray TeekellDirector
Sale
3,000$47.30$141.9K56,338(D)

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May 4, 2026May 5 11:32 AMDouglas M. Schafer JREVP and CIO
Sale
48,000$47.25$2.3M396,681(D)

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May 4, 2026May 5 11:31 AMKurt M. EckertDirector
Sale
5,625$47.29$266.0K142,375(D)

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May 4, 2026May 5 11:30 AMBarbara J. ComlyEVP, GC & Corporate Secretary
Sale
28,000$47.26$1.3M843,844(D)

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May 4, 2026May 4 8:32 PMJ. GRAY TEEKELL
Proposed Sale
9,000$47.17$424.5K

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May 4, 2026May 4 8:31 PMSHELLY BROWN
Proposed Sale
32,000$47.17$1.5M

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May 4, 2026May 4 8:31 PMEDWARD DEITZEL
Proposed Sale
33,000$47.17$1.6M

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Apr 15, 2026Apr 17 8:17 PMThomas P. GallagherDirector, Chairman & CEO
Sale
224,025$43.43$9.7M485,963(I)

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Apr 15, 2026Apr 17 8:15 PMBarbara J. ComlyEVP, GC & Corporate Secretary
Sale
29,667$43.64$1.3M843,844(D)

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Apr 15, 2026Apr 15 8:55 PMBARBARA J COMLY
Proposed Sale
141,667$42.91$6.1M

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Mar 19, 2026Mar 20 8:48 PMKurt M. EckertDirector
Option Exercise
12,917$12.000(D)

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Mar 17, 2026Mar 18 8:23 PMDouglas M. Schafer JREVP and CIO
Option Exercise
48,000$12.00102,000(D)

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Mar 9, 2026Mar 10 8:40 PMBarbara J. ComlyEVP, GC & Corporate Secretary
Option Exercise
33,3320(D)

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Mar 2, 2026Mar 6 9:12 PMMurray StahlDirector
X
112,656$20.500(I)

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Mar 2, 2026Mar 4 8:22 PMMurray StahlDirector
X
250,156$20.500(I)

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