Form 4 Tracker
MIAMI INTERNATIONAL HOLDINGS, INC.
MIAX

97 insider filings · Latest: Aug 4, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Mar 17, 2026Mar 17 8:29 PMDOUGLAS M. SCHAFER JR.
Proposed Sale
144,000$39.49$5.7M

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Mar 5, 2026Mar 6 10:57 PMMurray StahlDirector
Purchase
7,200$43.08$310.2K4,633,842(I)

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Mar 4, 2026Mar 6 10:52 PMMurray StahlDirector
Purchase
7,200$43.38$312.3K4,626,642(I)

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Mar 2, 2026Mar 6 9:12 PMMurray StahlDirector
Sale
53,578$40.92$2.2M4,619,442(I)

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Mar 4, 2026Mar 5 7:44 PMMurray StahlDirector
Purchase
7,200$43.38$312.3K4,696,666(I)

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Mar 2, 2026Mar 4 8:22 PMMurray StahlDirector
Sale
121,054$40.92$5.0M4,689,466(I)

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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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