Form 4 for MIAX MIAMI INTERNATIONAL HOLDINGS, INC.
Accepted 2026-08-06 16:11:57 ET · period of report 2026-08-04 · accession 0002080678-26-000008 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DT | 2026-08-06 16:11 | 2026-08-04 | MIAX | Eckert Kurt M. | Dir | M - OptEx | $12.00 | +1,063 | 150.7K | +0.7% | +$12.8K |
| DT | 2026-08-06 16:11 | 2026-08-04 | MIAX | Eckert Kurt M. | Dir | S - Sale+OE | $45.80 | -1,063 | 149.6K | -0.7% | -$48.7K |
| DT | 2026-08-06 16:11 | 2026-08-04 | MIAX | Eckert Kurt M. | Dir | M - OptEx | $0.00 | -1,063 | 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 | 2026-08-04 | M | A | 1,063 | $12.00 | 150,675 | D | — | — | (F1) This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025. |
| 2 | Common | Common Stock | 2026-08-04 | S | D | 1,063 | $45.80 | 149,612 | D | — | — | (F1) This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025. (F2) This transaction was executed in multiple trades throughout the day at prices ranging from $45.14 to $46.57. 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) | 2026-08-04 | M | D | 1,063 | $0.00 | 0 | D | $12.00 · — to 2027-05-31 | 1,063 Common Stock | (F1) This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the Reporting Person on December 18, 2025. (F3) The options are fully vested |