Form 4 for MIAX MIAMI INTERNATIONAL HOLDINGS, INC.
Accepted 2025-09-15 00:00:00 ET · period of report 2025-09-11 · accession 0002080703-25-000002 · 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 | 2025-09-15 | 2025-09-11 | MIAX | Smollen John | EVP Traded Products, Relation | M - OptEx | $12.00 | +150.0K | 166.1K | +931% | +$1.80M |
| D | 2025-09-15 | 2025-09-11 | MIAX | Smollen John | EVP Traded Products, Relation | F - Tax | $37.39 | -52.1K | 141.1K | -27% | -$1.95M |
| DM | 2025-09-15 | 2025-09-11 | MIAX | Smollen John | EVP Traded Products, Relation | M - OptEx | $0.00 | -150.0K | 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 | 2025-09-11 | M | A | 125,001 | $12.00 | 193,174 | D | — | — | |
| 2 | Common | Common Stock | 2025-09-11 | F | D | 52,054 | $37.39 | 141,120 | D | — | — | (F1) Represents shares that have been surrendered to the Company to satisfy tax withholding and remittance obligations in connection with the net settlement of options exercised and does not represent a sale by the reporting person. |
| 3 | Common | Common Stock | 2025-09-11 | M | A | 24,999 | $12.00 | 166,119 | D | — | — | |
| 4 | Derivative | Nonqualified Stock Option (Right to Buy) | 2025-09-11 | M | D | 125,001 | $0.00 | 0 | D | $12.00 · — to 2025-09-17 | 125,001 Common Stock | (F2) The options are fully vested. |
| 5 | Derivative | Incentive Stock Option (Right to Buy) | 2025-09-11 | M | D | 24,999 | $0.00 | 0 | D | $12.00 · — to 2025-09-17 | 24,999 Common Stock | (F2) The options are fully vested. |