| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Smollen John | EVP Traded Products & Relation | C/O MIAMI INTERNATIONAL HOLDINGS, INC., 7 ROSZEL ROAD, SUITE 1A, PRINCETON | /s/Alessandra Maria Corona Henriques, Attorney-in-Fact | 13 Aug 2025 | 0002080703 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | MIAX | Common Stock | 2,226 | 13 Aug 2025 | Direct |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | MIAX | Series B Preferred Stock | 13 Aug 2025 | Common Stock | 91,666 | Held by Quivetneck Capital LLC of which Mr. Smollen is a managing member | F1 | |||||||
| holding | MIAX | Nonvoting Common Stock | 13 Aug 2025 | Common Stock | 65,947 | Direct | F2 | |||||||
| holding | MIAX | Incentive Stock Option (Right to Buy) | 13 Aug 2025 | Series B Preferred Stock | 24,999 | $12.00 | Direct | F3 | ||||||
| holding | MIAX | Incentive Stock Option (Right to Buy) | 13 Aug 2025 | Nonvoting Common Stock | 24,999 | $12.00 | Direct | F3 | ||||||
| holding | MIAX | Incentive Stock Option (Right to Buy) | 13 Aug 2025 | Nonvoting Common Stock | 8,333 | $12.00 | Direct | F3 | ||||||
| holding | MIAX | Incentive Stock Option (Right to Buy) | 13 Aug 2025 | Nonvoting Common Stock | 6,570 | $15.22 | Direct | F3 | ||||||
| holding | MIAX | Incentive Stock Option (Right to Buy) | 13 Aug 2025 | Nonvoting Common Stock | 7,757 | $25.78 | Direct | F3 | ||||||
| holding | MIAX | Incentive Stock Option (Right to Buy) | 13 Aug 2025 | Common Stock | 5,041 | $19.84 | Direct | F4 | ||||||
| holding | MIAX | Incentive Stock Option (Right to Buy) | 13 Aug 2025 | Common Stock | 8,928 | $22.40 | Direct | F5 | ||||||
| holding | MIAX | Nonqualified Stock Option (Right to Buy) | 13 Aug 2025 | Series B Preferred Stock | 125,001 | $12.00 | Direct | F6 | ||||||
| holding | MIAX | Nonqualified Stock Option (Right to Buy) | 13 Aug 2025 | Nonvoting Common Stock | 75,001 | $12.00 | Direct | F6 | ||||||
| holding | MIAX | Nonqualified Stock Option (Right to Buy) | 13 Aug 2025 | Nonvoting Common Stock | 104,167 | $12.00 | Direct | F6 | ||||||
| holding | MIAX | Nonqualified Stock Option (Right to Buy) | 13 Aug 2025 | Nonvoting Common Stock | 80,930 | $15.22 | Direct | F6 | ||||||
| holding | MIAX | Nonqualified Stock Option (Right to Buy) | 13 Aug 2025 | Nonvoting Common Stock | 29,743 | $25.78 | Direct | F6 | ||||||
| holding | MIAX | Nonqualified Stock Option (Right to Buy) | 13 Aug 2025 | Common Stock | 32,459 | $19.84 | Direct | F7 | ||||||
| holding | MIAX | Nonqualified Stock Option (Right to Buy) | 13 Aug 2025 | Common Stock | 37,500 | $20.08 | Direct | F8 | ||||||
| holding | MIAX | Nonqualified Stock Option (Right to Buy) | 13 Aug 2025 | Common Stock | 16,072 | $22.40 | Direct | F9 |
| Id | Content |
|---|---|
| F1 | The shares of Series B Preferred Stock are convertible on a one-for-one basis into shares of common stock commencing on the Company's initial public offering of its common stock ("IPO") effective date, which is August 13, 2025. The Series B Preferred Stock has no expiration date. |
| F2 | The shares of nonvoting common stock are convertible on a one-for-one basis into shares of common stock commencing at any time. The nonvoting common stock has no expiration date. |
| F3 | The incentive stock options are fully vested. The options were granted initially as the right to buy nonvoting common stock or Series B preferred stock, as applicable. On the closing date of the IPO, these will convert to the right to buy common stock instead of nonvoting common stock or Series B preferred stock, as applicable. |
| F4 | 1 of the shares subject to this incentive stock option is fully vested and the remaining 5,040 will vest on March 29, 2026, subject to the reporting person's continued service to the Issuer or its subsidiaries through the applicable vesting date. |
| F5 | 4,464 of the shares subject to this incentive stock option will vest on each of June 16, 2027 and June 16, 2028, subject to the reporting person's continued service to the Issuer or its subsidiaries through the applicable vesting date. |
| F6 | The nonqualified stock options are fully vested. The options were granted initially as the right to buy nonvoting common stock or Series B preferred stock, as applicable. On the closing date of the IPO, these will convert to the right to buy common stock instead of nonvoting common stock or Series B preferred stock, as applicable. |
| F7 | 24,999 of the shares subject to this nonqualified stock option are fully vested and the remaining 7,460 will vest on March 29, 2026, subject to the reporting person's continued service to the Issuer or its subsidiaries through the applicable vesting date. |
| F8 | 18,750 of the shares subject to this nonqualified stock option are fully vested and the remaining 18,750 will vest on June 30, 2026, subject to the reporting person's continued service to the Issuer or its subsidiaries through the applicable vesting date. |
| F9 | 8,334 of the shares subject to this nonqualified stock option will vest on June 16, 2026 and the remaining will vest as to 3,869 shares on each of June 16, 2027 and June 16, 2028, subject to the reporting person's continued service to the Issuer or its subsidiaries through the applicable vesting date. |
See Exhibit 24.1 - Power of Attorney