Form 4 for MIAX MIAMI INTERNATIONAL HOLDINGS, INC.
Accepted 2026-04-09 16:15:22 ET · period of report 2026-04-07 · accession 0002080671-26-000006 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DMT | 2026-04-09 16:15 | 2026-04-07+ | MIAX | Deitzel Edward | EVP, CRO, CCO MIAX Exchanges | M - OptEx | $12.00 | +12.3K | 123.8K | +11% | +$148.0K |
| DMT | 2026-04-09 16:15 | 2026-04-07+ | MIAX | Deitzel Edward | EVP, CRO, CCO MIAX Exchanges | S - Sale+OE | $42.01 | -12.3K | 116.2K | -10% | -$518.2K |
| DMT | 2026-04-09 16:15 | 2026-04-07+ | MIAX | Deitzel Edward | EVP, CRO, CCO MIAX Exchanges | M - OptEx | $0.00 | -12.3K | 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 | 2026-04-07 | M | A | 762 | $12.00 | 116,983 | D | — | — | |
| 2 | Common | Common Stock | 2026-04-07 | S | D | 762 | $42.00 | 116,221 | D | — | — | (F1) This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the reporting person on December 30, 2025. |
| 3 | Common | Common Stock | 2026-04-07 | M | A | 4,001 | $12.00 | 120,222 | D | — | — | |
| 4 | Common | Common Stock | 2026-04-07 | S | D | 4,001 | $42.00 | 116,221 | D | — | — | (F1) This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the reporting person on December 30, 2025. |
| 5 | Common | Common Stock | 2026-04-08 | M | A | 7,572 | $12.00 | 123,793 | D | — | — | |
| 6 | Common | Common Stock | 2026-04-08 | S | D | 7,572 | $42.02 | 116,221 | D | — | — | (F1) This transaction was effected pursuant to a previously established Rule 10b5-1 Plan adopted by the reporting person on December 30, 2025. (F2) This transaction was executed in multiple trades throughout the day at prices ranging from $42.00 to $42.13. The price reported above reflects the weighted average sale 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. |
| 7 | Derivative | Nonqualified Stock Option (Right to Buy) | 2026-04-07 | M | D | 762 | $0.00 | 7,572 | D | $12.00 · — to 2026-08-02 | 762 Common Stock | (F3) The options are fully vested. |
| 8 | Derivative | Nonqualified Stock Option (Right to Buy) | 2026-04-07 | M | D | 4,001 | $0.00 | 29,333 | D | $12.00 · — to 2028-05-17 | 4,001 Common Stock | (F3) The options are fully vested. |
| 9 | Derivative | Nonqualified Stock Option (Right to Buy) | 2026-04-08 | M | D | 7,572 | $0.00 | 0 | D | $12.00 · — to 2026-08-02 | 7,572 Common Stock | (F3) The options are fully vested. |