| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Deitzel Edward | EVP, CRO, CCO MIAX Exchanges | C/O MIAMI INTERNATIONAL HOLDINGS, INC., 7 ROSZEL ROAD, SUITE 1A, PRINCETON | /s/Alessandra Maria Corona Henriques, Attorney-in-Fact | 11 Sep 2025 | 0002080671 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MIAX | Common Stock | Options Exercise | $750,000 | +62,500 | +76% | $12.00 | 144,387 | 09 Sep 2025 | Direct | |
| transaction | MIAX | Common Stock | Tax liability | $1,420,757 | -38,090 | -26% | $37.30 | 106,297 | 09 Sep 2025 | Direct | F1 |
| transaction | MIAX | Common Stock | Options Exercise | $199,992 | +16,666 | +16% | $12.00 | 122,963 | 11 Sep 2025 | Direct |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MIAX | Nonqualified Stock Option (Right to Buy) | Options Exercise | $0 | -62,500 | -100% | $0.000000 | 0 | 09 Sep 2025 | Common Stock | 62,500 | $12.00 | Direct | F2 |
| transaction | MIAX | Incentive Stock Option (Right to Buy) | Options Exercise | $0 | -16,666 | -100% | $0.000000 | 0 | 10 Sep 2025 | Common Stock | 16,666 | $12.00 | Direct | F2 |
| 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 options exercised and does not represent a sale by the reporting person |
| F2 | The options are fully vested. |