| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Brown Shelly | EVP, Strat. Planning & BD | C/O MIAMI INTERNATIONAL HOLDINGS, INC., 7 ROSZEL ROAD, SUITE 1A, PRINCETON | /s/Alessandra Maria Corona Henriques, Attorney-in-Fact | 28 Aug 2025 | 0002080506 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MIAX | Common Stock | Tax liability | $374,493 | -11,047 | -3.3% | $33.90 | 327,982 | 26 Aug 2025 | Direct | F1 |
| 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. |