Form 4 for MIAX MIAMI INTERNATIONAL HOLDINGS, INC.
Accepted 2025-08-19 00:00:00 ET · period of report 2025-08-15 · accession 0001628280-25-040797 · 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 | Stahlin Paul | Dir | C - Cnv Deriv | — | +24.1K | 25.1K | +2,408% | — |
| DM | 2025-08-19 | 2025-08-15 | MIAX | Stahlin Paul | Dir | C - Cnv Deriv | $0.00 | -24.1K | 0 | -100% | $0 |
| DM | 2025-08-19 | 2025-08-15 | MIAX | Stahlin Paul | Dir | M - OptEx | $0.00 | 0 | 0 | New | $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 | 10,000 | — | 25,083 | D | — | — | (F1) Includes 10,000 shares of Series B Preferred Stock which are held jointly with his spouse with right of survival, and 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 and which have no expiration date. (F2) Includes 14,083 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 initial public offering and which have no expiration date. Of his 14,083 shares of Nonvoting Common Stock, (i) 10,000 are held in his individual name and (ii) 4,083 are held jointly with his spouse with right of survival. |
| 2 | Common | Common Stock | 2025-08-15 | C | A | 14,083 | — | 25,083 | D | — | — | (F2) Includes 14,083 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 initial public offering and which have no expiration date. Of his 14,083 shares of Nonvoting Common Stock, (i) 10,000 are held in his individual name and (ii) 4,083 are held jointly with his spouse with right of survival. (F1) Includes 10,000 shares of Series B Preferred Stock which are held jointly with his spouse with right of survival, and 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 and which have no expiration date. |
| 3 | Derivative | Series B Preferred Stock | 2025-08-15 | C | D | 10,000 | $0.00 | 0 | D | — · — to — | 10,000 Common Stock | (F1) Includes 10,000 shares of Series B Preferred Stock which are held jointly with his spouse with right of survival, and 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 and which have no expiration date. |
| 4 | Derivative | Nonvoting Common Stock | 2025-08-15 | C | D | 14,083 | $0.00 | 0 | D | — · — to — | 14,083 Common Stock | (F2) Includes 14,083 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 initial public offering and which have no expiration date. Of his 14,083 shares of Nonvoting Common Stock, (i) 10,000 are held in his individual name and (ii) 4,083 are held jointly with his spouse with right of survival. |
| 5 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | D | 11,000 | $0.00 | 0 | D | $12.00 · — to 2026-06-19 | 11,000 Nonvoting Common Stock | (F3) The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the initial public offering, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. (F4) The options are fully vested. |
| 6 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | A | 11,000 | $0.00 | 11,000 | D | $12.00 · — to 2025-06-19 | 11,000 Common Stock | (F3) The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the initial public offering, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. (F4) The options are fully vested. |
| 7 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | D | 18,000 | $0.00 | 0 | D | $12.00 · — to 2027-05-31 | 18,000 Nonvoting Common Stock | (F3) The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the initial public offering, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. (F4) The options are fully vested. |
| 8 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | A | 18,000 | $0.00 | 18,000 | D | $12.00 · — to 2027-05-31 | 18,000 Common Stock | (F3) The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the initial public offering, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. (F4) The options are fully vested. |
| 9 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | A | 13,889 | $0.00 | 13,889 | D | $16.14 · — to 2031-05-31 | 13,889 Common Stock | (F3) The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the initial public offering, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. (F4) The options are fully vested. |
| 10 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | A | 18,000 | $0.00 | 18,000 | D | $12.00 · — to 2028-04-30 | 18,000 Common Stock | (F3) The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the initial public offering, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. (F4) The options are fully vested. |
| 11 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | D | 18,000 | $0.00 | 0 | D | $12.00 · — to 2029-05-31 | 18,000 Nonvoting Common Stock | (F3) The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the initial public offering, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. (F4) The options are fully vested. |
| 12 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | A | 18,000 | $0.00 | 18,000 | D | $12.00 · — to 2029-05-31 | 18,000 Common Stock | (F3) The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the initial public offering, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. (F4) The options are fully vested. |
| 13 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | D | 22,500 | $0.00 | 0 | D | $14.00 · — to 2030-06-30 | 22,500 Nonvoting Common Stock | (F3) The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the initial public offering, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. (F4) The options are fully vested. |
| 14 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | A | 22,500 | $0.00 | 22,500 | D | $14.00 · — to 2030-06-30 | 22,500 Common Stock | (F3) The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the initial public offering, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. (F4) The options are fully vested. |
| 15 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | D | 13,889 | $0.00 | 0 | D | $16.14 · — to 2031-05-31 | 13,889 Nonvoting Common Stock | (F3) The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the initial public offering, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. (F4) The options are fully vested. |
| 16 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | D | 18,000 | $0.00 | 0 | D | $12.00 · — to 2028-04-30 | 18,000 Nonvoting Common Stock | (F3) The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the initial public offering, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. (F4) The options are fully vested. |