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Form 4 — Insider Transaction

MIAMI INTERNATIONAL HOLDINGS, INC.(MIAX)

Filing Date

June 2, 2026

Accepted

June 2, 2026

Accession No.

0002080477-26-000010

CIK

0001438472

Insider Transactions

InsiderTitleTypeSharesPriceValueOwned AfterSecurityDate
Gallagher Thomas P.Chairman & CEOOther70.0K$121.79MCommon StockJun 2, 2026
Gallagher Thomas P.Chairman & CEOOther70.0K$42.361.72MCommon StockJun 2, 2026
Gallagher Thomas P.Chairman & CEOOther70.0K$0140.0KNonqualified Stock Option (Right to Buy)Jun 2, 2026