Form 4 for MIAX MIAMI INTERNATIONAL HOLDINGS, INC.
Accepted 2025-08-19 00:00:00 ET · period of report 2025-08-15 · accession 0001628280-25-040786 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2025-08-19 | 2025-08-15 | MIAX | Eckert Kurt M. | Dir | C - Cnv Deriv | — | +46.9K | 167.4K | +39% | — |
| DM | 2025-08-19 | 2025-08-15 | MIAX | Eckert Kurt M. | Dir | M - OptEx | $0.00 | 0 | 18.0K | New | $0 |
| D | 2025-08-19 | 2025-08-15 | MIAX | Eckert Kurt M. | Dir | C - Cnv Deriv | $0.00 | -46.9K | 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 | 46,875 | — | 167,375 | D | — | — | (F1) Includes 46,875 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 ("IPO") and which have no expiration date. Of his 46,875 shares of Nonvoting Common Stock, (i) 15,375 are held in his individual name and (ii) 31,500 are held jointly with his spouse with right of survivorship |
| 2 | 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 | (F2) The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. (F3) The options are fully vested |
| 3 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | A | 17,188 | $0.00 | 17,188 | D | $12.00 · — to 2027-05-31 | 17,188 Common Stock | (F2) The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. (F3) The options are fully vested |
| 4 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | D | 22,812 | $0.00 | 0 | D | $12.00 · — to 2029-05-31 | 22,812 Nonvoting Common Stock | (F2) The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. (F3) The options are fully vested |
| 5 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | A | 22,812 | $0.00 | 22,812 | D | $12.00 · — to 2029-05-31 | 22,812 Common Stock | (F2) The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. (F3) The options are fully vested |
| 6 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | D | 125 | $0.00 | 0 | D | $12.00 · — to 2029-06-30 | 125 Nonvoting Common Stock | (F2) The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. (F3) The options are fully vested |
| 7 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | A | 125 | $0.00 | 125 | D | $12.00 · — to 2029-06-30 | 125 Common Stock | (F2) The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. (F3) The options are fully vested |
| 8 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | D | 30,156 | $0.00 | 0 | D | $14.00 · — to 2030-06-30 | 30,156 Nonvoting Common Stock | (F2) The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. (F3) The options are fully vested |
| 9 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | A | 30,156 | $0.00 | 30,156 | D | $14.00 · — to 2030-06-30 | 30,156 Common Stock | (F2) The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. (F3) The options are fully vested |
| 10 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | D | 22,223 | $0.00 | 0 | D | $16.14 · — to 2031-05-31 | 22,223 Nonvoting Common Stock | (F2) The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. (F3) The options are fully vested |
| 11 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | A | 22,223 | $0.00 | 22,223 | D | $16.14 · — to 2031-05-31 | 22,223 Common Stock | (F2) The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. (F3) The options are fully vested |
| 12 | Derivative | Nonvoting Common Stock | 2025-08-15 | C | D | 46,875 | $0.00 | 0 | D | — · — to — | 46,875 Common Stock | (F1) Includes 46,875 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 ("IPO") and which have no expiration date. Of his 46,875 shares of Nonvoting Common Stock, (i) 15,375 are held in his individual name and (ii) 31,500 are held jointly with his spouse with right of survivorship |
| 13 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | D | 12,917 | $0.00 | 0 | D | $12.00 · — to 2026-06-19 | 12,917 Nonvoting Common Stock | (F2) The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. (F3) The options are fully vested |
| 14 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | A | 12,917 | $0.00 | 12,917 | D | $12.00 · — to 2026-06-19 | 12,917 Common Stock | (F2) The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. (F3) The options are fully vested |
| 15 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | D | 17,188 | $0.00 | 0 | D | $12.00 · — to 2027-05-31 | 17,188 Nonvoting Common Stock | (F2) The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. (F3) The options are fully vested |
| 16 | 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 | (F2) The options were granted initially as the right to buy Nonvoting Common Stock. On the closing date of the IPO, these converted to the right to buy Common Stock instead of Nonvoting Common Stock, for the same price and under the same conditions. (F3) The options are fully vested |