Form 4 for MIAX MIAMI INTERNATIONAL HOLDINGS, INC.
Accepted 2026-05-13 16:26:20 ET · period of report 2026-05-11 · accession 0002080477-26-000008 · 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 | 2026-05-13 16:26 | 2026-05-11 | MIAX | Gallagher Thomas P. | COB, CEO, Dir | M - OptEx | $12.00 | +25.0K | 511.0K | +5% | +$300.0K |
| D | 2026-05-13 16:26 | 2026-05-11 | MIAX | Gallagher Thomas P. | COB, CEO, Dir | M - OptEx | $0.00 | -25.0K | 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 | 2026-05-11 | M | A | 24,999 | $12.00 | 510,962 | D | — | — | |
| 2 | Derivative | Incentive Stock Option (Right to Buy) | 2026-05-11 | M | D | 24,999 | $0.00 | 0 | D | $12.00 · — to 2026-08-02 | 24,999 Common Stock | (F1) The options are fully vested. |