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

Role
Director
Signature
/s/Alessandra Maria Corona Henriques, Attorney-in-Fact
Stock symbol
MIAX
Transactions as of
Aug 13, 2025
Transactions value $
$184,000
Form type
4
Date filed
8/15/2025, 04:48 PM
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 2025-08-15 0002080776

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MIAX Common Stock Purchase $80.5K +3.5K $23.00 3.5K Aug 13, 2025 Direct
transaction MIAX Common Stock Purchase $57.5K +2.5K $23.00 2.5K Aug 13, 2025 By spouse F1
transaction MIAX Common Stock Purchase $34.5K +1.5K $23.00 1.5K Aug 13, 2025 By child F1
transaction MIAX Common Stock Purchase $11.5K +500 $23.00 500 Aug 13, 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.