Form 4 for MIAX MIAMI INTERNATIONAL HOLDINGS, INC.
Accepted 2025-08-19 00:00:00 ET · period of report 2025-08-15 · accession 0001628280-25-040790 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2025-08-19 | 2025-08-15 | MIAX | Deitzel Edward | EVP, CRO, CCO MIAX Exchanges | C - Cnv Deriv | — | +49.7K | 81.9K | +154% | — |
| DM | 2025-08-19 | 2025-08-15 | MIAX | Deitzel Edward | EVP, CRO, CCO MIAX Exchanges | M - OptEx | $0.00 | 0 | 0 | New | $0 |
| DM | 2025-08-19 | 2025-08-15 | MIAX | Deitzel Edward | EVP, CRO, CCO MIAX Exchanges | C - Cnv Deriv | $0.00 | -49.7K | 0 | -100% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2025-08-15 | C | A | 500 | — | 81,887 | D | — | — | (F1) Represents 500 shares of Series B Preferred Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's initial public offering ("IPO") and which have no expiration date. |
| 2 | Common | Common Stock | 2025-08-15 | C | A | 49,194 | — | 81,887 | D | — | — | (F2) Represents 49,194 shares of Nonvoting Common Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's IPO and which have no expiration date. Includes 5,000 shares held jointly with his spouse with right of survivorship. |
| 3 | Derivative | Nonqualified Stock Option (Right to Buy) | 2025-08-15 | M | A | 8,334 | $0.00 | 8,334 | D | $12.00 · — to 2026-08-02 | 8,334 Common Stock | (F3) 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 converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions. (F4) The options are fully vested. |
| 4 | Derivative | Nonqualified Stock Option (Right to Buy) | 2025-08-15 | M | D | 33,334 | $0.00 | 0 | D | $12.00 · — to 2028-05-17 | 33,334 Nonvoting Common Stock | (F3) 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 converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions. (F4) The options are fully vested. |
| 5 | Derivative | Nonqualified Stock Option (Right to Buy) | 2025-08-15 | M | A | 33,334 | $0.00 | 33,334 | D | $12.00 · — to 2028-05-17 | 33,334 Common Stock | (F3) 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 converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions. (F4) The options are fully vested. |
| 6 | Derivative | Nonqualified Stock Option (Right to Buy) | 2025-08-15 | M | D | 91,667 | $0.00 | 0 | D | $12.00 · — to 2029-07-31 | 91,667 Nonvoting Common Stock | (F3) 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 converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions. (F4) The options are fully vested. |
| 7 | Derivative | Nonqualified Stock Option (Right to Buy) | 2025-08-15 | M | A | 91,667 | $0.00 | 91,667 | D | $12.00 · — to 2029-07-31 | 91,667 Common Stock | (F3) 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 converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions. (F4) The options are fully vested. |
| 8 | Derivative | Nonqualified Stock Option (Right to Buy) | 2025-08-15 | M | D | 55,930 | $0.00 | 0 | D | $15.22 · — to 2030-11-30 | 55,930 Nonvoting Common Stock | (F3) 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 converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions. (F4) The options are fully vested. |
| 9 | Derivative | Nonqualified Stock Option (Right to Buy) | 2025-08-15 | M | A | 55,930 | $0.00 | 55,930 | D | $15.22 · — to 2030-11-30 | 55,930 Common Stock | (F3) 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 converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions. (F4) The options are fully vested. |
| 10 | Derivative | Nonqualified Stock Option (Right to Buy) | 2025-08-15 | M | D | 56,304 | $0.00 | 0 | D | $16.14 · — to 2031-09-09 | 56,304 Nonvoting Common Stock | (F3) 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 converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions. (F4) The options are fully vested. |
| 11 | Derivative | Nonqualified Stock Option (Right to Buy) | 2025-08-15 | M | A | 56,304 | $0.00 | 56,304 | D | $16.14 · — to 2031-09-09 | 56,304 Common Stock | (F3) 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 converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions. (F4) The options are fully vested. |
| 12 | Derivative | Incentive Stock Option (Right to Buy) | 2025-08-15 | M | A | 16,666 | $0.00 | 16,666 | D | $12.00 · — to 2028-05-17 | 16,666 Common Stock | (F3) 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 converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions. (F4) The options are fully vested. |
| 13 | Derivative | Incentive Stock Option (Right to Buy) | 2025-08-15 | M | D | 8,333 | $0.00 | 0 | D | $12.00 · — to 2029-07-31 | 8,333 Nonvoting Common Stock | (F3) 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 converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions. (F4) The options are fully vested. |
| 14 | Derivative | Incentive Stock Option (Right to Buy) | 2025-08-15 | M | A | 8,333 | $0.00 | 8,333 | D | $12.00 · — to 2029-07-31 | 8,333 Common Stock | (F3) 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 converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions. (F4) The options are fully vested. |
| 15 | Derivative | Incentive Stock Option (Right to Buy) | 2025-08-15 | M | D | 6,570 | $0.00 | 0 | D | $15.22 · — to 2030-11-30 | 6,570 Nonvoting Common Stock | (F3) 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 converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions. (F4) The options are fully vested. |
| 16 | Derivative | Incentive Stock Option (Right to Buy) | 2025-08-15 | M | A | 6,570 | $0.00 | 6,570 | D | $15.22 · — to 2030-11-30 | 6,570 Common Stock | (F3) 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 converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions. (F4) The options are fully vested. |
| 17 | Derivative | Incentive Stock Option (Right to Buy) | 2025-08-15 | M | D | 6,195 | $0.00 | 0 | D | $16.14 · — to 2031-09-09 | 6,195 Nonvoting Common Stock | (F3) 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 converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions. (F4) The options are fully vested. |
| 18 | Derivative | Incentive Stock Option (Right to Buy) | 2025-08-15 | M | A | 6,195 | $0.00 | 6,195 | D | $16.14 · — to 2031-09-09 | 6,195 Common Stock | (F3) 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 converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions. (F4) The options are fully vested. |
| 19 | Derivative | Nonqualified Stock Option (Right to Buy) | 2025-08-15 | M | D | 62,500 | $0.00 | 0 | D | $12.00 · — to 2025-09-17 | 62,500 Series B Preferred Stock | (F3) 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 converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions. (F4) The options are fully vested. |
| 20 | Derivative | Nonqualified Stock Option (Right to Buy) | 2025-08-15 | M | A | 62,500 | $0.00 | 62,500 | D | $12.00 · — to 2025-09-17 | 62,500 Common Stock | (F3) 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 converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions. (F4) The options are fully vested. |
| 21 | Derivative | Nonqualified Stock Option (Right to Buy) | 2025-08-15 | M | D | 8,334 | $0.00 | 0 | D | $12.00 · — to 2026-08-02 | 8,334 Nonvoting Common Stock | (F3) 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 converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions. (F4) The options are fully vested. |
| 22 | Derivative | Series B Preferred Stock | 2025-08-15 | C | D | 500 | $0.00 | 0 | D | — · — to — | 500 Common Stock | (F1) Represents 500 shares of Series B Preferred Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's initial public offering ("IPO") and which have no expiration date. |
| 23 | Derivative | Nonvoting Common Stock | 2025-08-15 | C | D | 49,194 | $0.00 | 0 | D | — · — to — | 49,194 Common Stock | (F2) Represents 49,194 shares of Nonvoting Common Stock that have been converted into shares of Common Stock on a one-for-one basis upon the closing of the Company's IPO and which have no expiration date. Includes 5,000 shares held jointly with his spouse with right of survivorship. |
| 24 | Derivative | Incentive Stock Option (Right to Buy) | 2025-08-15 | M | D | 16,666 | $0.00 | 0 | D | $12.00 · — to 2026-08-02 | 16,666 Nonvoting Common Stock | (F3) 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 converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions. (F4) The options are fully vested. |
| 25 | Derivative | Incentive Stock Option (Right to Buy) | 2025-08-15 | M | A | 16,666 | $0.00 | 16,666 | D | $12.00 · — to 2026-08-02 | 16,666 Common Stock | (F3) 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 converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions. (F4) The options are fully vested. |
| 26 | Derivative | Incentive Stock Option (Right to Buy) | 2025-08-15 | M | D | 16,666 | $0.00 | 0 | D | $12.00 · — to 2028-05-17 | 16,666 Nonvoting Common Stock | (F3) 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 converted to the right to buy Common Stock instead of Nonvoting Common Stock or Series B Preferred Stock, as applicable, for the same price and under the same conditions. (F4) The options are fully vested. |