Form 4 for MIAX MIAMI INTERNATIONAL HOLDINGS, INC.
Accepted 2026-05-21 17:21:22 ET · period of report 2026-05-19 · accession 0001437749-26-018120 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| I | 2026-05-21 17:21 | 2026-05-19 | MIAX | HORIZON KINETICS ASSET MANAGEMENT LLC | 10% | J - Other | $0.00 | -2.46M | 2.17M | -53% | $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 | 2026-05-19 | J | D | 2,455,744 | $0.00 | 2,170,898 | I Horizon Kinetics Asset Management LLC | — | — | (F1) On May 21, 2026, Horizon Kinetics Asset Management LLC ("HKAM") filed an amendment to its Schedule 13D wherein it reported beneficial ownership of 7,400,316 shares or 7.8 percent of the outstanding shares of the Issuer. The extent of HKAM's pecuniary interest in the shares reported in the Schedule 13D are disclosed herein. (F2) The change represents a reduction of 2,455,744 shares that were distributed in-kind on a pro rata basis, without consideration. (F3) This amount reflects a reduction of 7,200 shares that were held in an account for which the Reporting Person no longer has a pecuniary interest. |