Form 4 for MIAX MIAMI INTERNATIONAL HOLDINGS, INC.
Accepted 2026-06-12 16:15:54 ET · period of report 2026-06-11 · accession 0002080596-26-000002 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DT | 2026-06-12 16:15 | 2026-06-11 | MIAX | Schwarzkopf Cynthia | Dir | M - OptEx | $12.00 | +19.5K | 100.8K | +24% | +$234.0K |
| DT | 2026-06-12 16:15 | 2026-06-11 | MIAX | Schwarzkopf Cynthia | Dir | S - Sale+OE | $41.73 | -19.5K | 81.3K | -19% | -$813.7K |
| DT | 2026-06-12 16:15 | 2026-06-11 | MIAX | Schwarzkopf Cynthia | Dir | M - OptEx | $0.00 | -19.5K | 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 | 2026-06-11 | M | A | 19,500 | $12.00 | 100,808 | D | — | — | (F1) This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 12, 2026. |
| 2 | Common | Common Stock | 2026-06-11 | S | D | 19,500 | $41.73 | 81,308 | D | — | — | (F1) This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 12, 2026. (F2) This transaction was executed in multiple trades throughout the day at prices ranging from $40.86 to $42.75. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected. |
| 3 | Derivative | Stock Option (Right to Buy) | 2026-06-11 | M | D | 19,500 | $0.00 | 0 | D | $12.00 · — to 2026-06-19 | 19,500 Common Stock | (F1) This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on March 12, 2026. (F3) The options are fully vested. |