Form 4 for MIAX MIAMI INTERNATIONAL HOLDINGS, INC.
Accepted 2025-08-19 00:00:00 ET · period of report 2025-08-15 · accession 0001628280-25-040784 · 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 | Teekell Judson Gray | Dir | C - Cnv Deriv | — | +61.2K | 62.3K | +5,588% | — |
| DMI | 2025-08-19 | 2025-08-15 | MIAX | Teekell Judson Gray | Dir | C - Cnv Deriv | — | +68.1K | 86.5K | +370% | — |
| DM | 2025-08-19 | 2025-08-15 | MIAX | Teekell Judson Gray | Dir | M - OptEx | $0.00 | 0 | 5,000 | New | $0 |
| DMI | 2025-08-19 | 2025-08-15 | MIAX | Teekell Judson Gray | Dir | C - Cnv Deriv | $0.00 | -68.1K | 0 | -100% | $0 |
| DM | 2025-08-19 | 2025-08-15 | MIAX | Teekell Judson Gray | Dir | C - Cnv Deriv | $0.00 | -61.2K | 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 | 30,000 | — | 62,338 | D By estate of Byrum W. Teekell | — | — | (F1) Includes 30,000 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 and which have no expiration date. (F2) Includes 31,242 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. |
| 2 | Common | Common Stock | 2025-08-15 | C | A | 38,131 | — | 86,545 | I | — | — | (F4) Includes 38,131 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, which are held in the estate of Byrum W. Teekell for which J. Gray Teekell is executor and disclaims beneficial ownership as to 28,599 shares of Common Stock. The inclusion of such 28,599 shares in this report shall not be deemed an admission of beneficial ownership of the reported shares for purposes of Section 16 or for any other purpose. (F1) Includes 30,000 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 and which have no expiration date. (F3) Includes 30,000 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 and which have no expiration date, and which are held in the estate of Byrum W. Teekell for which J. Gray Teekell is executor and disclaims beneficial ownership as to 22,500 shares of Common Stock The inclusion of such 22,500 shares in this report shall not be deemed an admission of beneficial ownership of the reported shares for purposes of Section 16 or for any other purpose. |
| 3 | Common | Common Stock | 2025-08-15 | C | A | 30,000 | — | 86,545 | I | — | — | (F3) Includes 30,000 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 and which have no expiration date, and which are held in the estate of Byrum W. Teekell for which J. Gray Teekell is executor and disclaims beneficial ownership as to 22,500 shares of Common Stock The inclusion of such 22,500 shares in this report shall not be deemed an admission of beneficial ownership of the reported shares for purposes of Section 16 or for any other purpose. (F1) Includes 30,000 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 and which have no expiration date. (F4) Includes 38,131 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, which are held in the estate of Byrum W. Teekell for which J. Gray Teekell is executor and disclaims beneficial ownership as to 28,599 shares of Common Stock. The inclusion of such 28,599 shares in this report shall not be deemed an admission of beneficial ownership of the reported shares for purposes of Section 16 or for any other purpose. |
| 4 | Common | Common Stock | 2025-08-15 | C | A | 31,242 | — | 62,338 | D By estate of Byrum W. Teekell | — | — | (F2) Includes 31,242 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. (F1) Includes 30,000 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 and which have no expiration date. |
| 5 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | A | 20,556 | $0.00 | 20,556 | D | $16.14 · — to 2031-05-31 | 20,556 Common Stock | (F5) 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. (F6) The options are fully vested. |
| 6 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | D | 12,500 | $0.00 | 0 | D | $12.00 · — to 2029-05-31 | 12,500 Nonvoting Common Stock | (F5) 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. (F6) The options are fully vested. |
| 7 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | A | 12,833 | $0.00 | 12,833 | D | $12.00 · — to 2028-04-30 | 12,833 Nonvoting Common Stock | (F5) 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. (F6) The options are fully vested. |
| 8 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | D | 12,833 | $0.00 | 0 | D | $12.00 · — to 2028-04-30 | 12,833 Nonvoting Common Stock | (F5) 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. (F6) The options are fully vested. |
| 9 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | A | 13,500 | $0.00 | 13,500 | D | $12.00 · — to 2027-05-31 | 13,500 Common Stock | (F5) 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. |
| 10 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | D | 13,500 | $0.00 | 0 | D | $12.00 · — to 2027-05-31 | 13,500 Nonvoting Common Stock | (F5) 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. (F6) The options are fully vested. |
| 11 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | A | 22,667 | $0.00 | 22,667 | D | $12.00 · — to 2026-06-19 | 22,667 Common Stock | (F5) 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. (F6) The options are fully vested. |
| 12 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | D | 22,667 | $0.00 | 0 | D | $12.00 · — to 2026-06-19 | 22,667 Nonvoting Common Stock | (F5) 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. (F6) The options are fully vested. |
| 13 | Derivative | Nonvoting Common Stock | 2025-08-15 | C | D | 38,131 | $0.00 | 0 | I | — · — to — | 38,131 Common Stock | (F4) Includes 38,131 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, which are held in the estate of Byrum W. Teekell for which J. Gray Teekell is executor and disclaims beneficial ownership as to 28,599 shares of Common Stock. The inclusion of such 28,599 shares in this report shall not be deemed an admission of beneficial ownership of the reported shares for purposes of Section 16 or for any other purpose. |
| 14 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | D | 5,000 | $0.00 | 0 | D | $12.00 · — to 2029-06-30 | 5,000 Nonvoting Common Stock | (F5) 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. (F6) The options are fully vested. |
| 15 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | A | 12,500 | $0.00 | 12,500 | D | $12.00 · — to 2029-05-31 | 12,500 Common Stock | (F5) 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. (F6) The options are fully vested. |
| 16 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | D | 20,556 | $0.00 | 0 | D | $16.14 · — to 2031-05-31 | 20,556 Nonvoting Common Stock | (F5) 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. (F6) The options are fully vested. |
| 17 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | A | 28,125 | $0.00 | 28,125 | D | $14.00 · — to 2030-06-30 | 28,125 Common Stock | (F5) 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. (F6) The options are fully vested. |
| 18 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | D | 28,125 | $0.00 | 0 | D | $14.00 · — to 2030-06-30 | 28,125 Nonvoting Common Stock | (F5) 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. (F6) The options are fully vested. |
| 19 | Derivative | Stock Option (Right to Buy) | 2025-08-15 | M | A | 5,000 | $0.00 | 5,000 | D | $12.00 · — to 2029-06-30 | 5,000 Common Stock | (F5) 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. (F6) The options are fully vested. |
| 20 | Derivative | Series B Preferred Stock | 2025-08-15 | C | D | 30,000 | $0.00 | 0 | I | — · — to — | 30,000 Common Stock | (F3) Includes 30,000 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 and which have no expiration date, and which are held in the estate of Byrum W. Teekell for which J. Gray Teekell is executor and disclaims beneficial ownership as to 22,500 shares of Common Stock The inclusion of such 22,500 shares in this report shall not be deemed an admission of beneficial ownership of the reported shares for purposes of Section 16 or for any other purpose. |
| 21 | Derivative | Nonvoting Common Stock | 2025-08-15 | C | D | 31,242 | $0.00 | 0 | D By estate of Byrum W. Teekell | — · — to — | 31,242 Common Stock | (F2) Includes 31,242 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. |
| 22 | Derivative | Series B Preferred Stock | 2025-08-15 | C | D | 30,000 | $0.00 | 0 | D By estate of Byrum W. Teekell | — · — to — | 30,000 Common Stock | (F1) Includes 30,000 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 and which have no expiration date. |