Thomas P. Gallagher - 10 Feb 2026 Form 4 Insider Report for MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX)

Role
Chairman & CEO, Director
Signature
/s/ Barbara J. Comly, Attorney-in-fact
Issuer symbol
MIAX
Transactions as of
10 Feb 2026
Net transactions value
-$2,070,633
Form type
4
Filing time
12 Feb 2026, 16:33:23 UTC
Previous filing
29 Dec 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Gallagher Thomas P. Chairman & CEO, Director C/O MIAMI INTERNATIONAL HOLDINGS, INC, 7 ROSZEL ROAD, SUITE 1A, PRINCETON /s/ Barbara J. Comly, Attorney-in-fact 12 Feb 2026 0002080477

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MIAX Common Stock Tax liability $2,070,633 -50,100 -8.6% $41.33 535,863 10 Feb 2026 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents shares that have been surrendered to the Company to satisfy tax withholding and remittance obligations in connection with the net settlement of restricted stock awards and does not represent a sale by the reporting person.