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MIAMI INTERNATIONAL HOLDINGS, INC.|4Dec 17, 4:23 PM ET

Brown Shelly 4

4 · MIAMI INTERNATIONAL HOLDINGS, INC. · Filed Dec 17, 2025

Insider Transaction Report

Form 4

Period: 2025-12-16

MIAMI INTERNATIONAL HOLDINGS, INC.MIAX

EVP, Chief Strategy Officer

Transactions

Exercise/Conversion
Common Stock
2025-12-16$12.00/sh+16,666$199,992→ 328,365 total
Exercise/Conversion
Common Stock
2025-12-16$12.00/sh+8,333$99,996→ 336,698 total
Exercise/Conversion
Incentive Stock Option (Right to Buy)
2025-12-16−16,666→ 0 total
Exercise: $12.00Exp: 2026-08-02→ Common Stock (16,666 underlying)
Exercise/Conversion
Incentive Stock Option (Right to Buy)
2025-12-16−8,333→ 0 total
Exercise: $12.00Exp: 2027-10-12→ Common Stock (8,333 underlying)

Footnotes (1)

[F1]The options are fully vested.

Documents

1 file

4
wk-form4_1766006602.xmlPrimary
FORM 4