Mark I. Massad - 13 Aug 2025 Form 4 Insider Report for MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX)

Role
Director
Signature
/s/Alessandra Maria Corona Henriques, Attorney-in-Fact
Issuer symbol
MIAX
Transactions as of
13 Aug 2025
Net transactions value
+$184,000
Form type
4
Filing time
15 Aug 2025, 16:48:15 UTC
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Massad Mark I. Director C/O MIAMI INTERNATIONAL HOLDINGS, INC., 7 ROSZEL ROAD, SUITE 1A, PRINCETON /s/Alessandra Maria Corona Henriques, Attorney-in-Fact 15 Aug 2025 0002080776

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MIAX Common Stock Purchase $80,500 +3,500 $23.00 3,500 13 Aug 2025 Direct
transaction MIAX Common Stock Purchase $57,500 +2,500 $23.00 2,500 13 Aug 2025 By spouse F1
transaction MIAX Common Stock Purchase $34,500 +1,500 $23.00 1,500 13 Aug 2025 By child F1
transaction MIAX Common Stock Purchase $11,500 +500 $23.00 500 13 Aug 2025 By child F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Mr. Massad disclaims beneficial ownership of the shares of common stock owned by his spouse and children.