MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) has 19 open-market insider trades by 12 insiders since 2025. The most active filer is Murray Stahl, Director.
| Name | Title | Tier | Trades | Value | Last Trade |
|---|---|---|---|---|---|
| Murray Stahl | Dir | — | 6 | $7.9M | 2026-03-05 |
| Horizon Kinetics ASSET Management LLC | Dir10% Owner | — | 4 | $6.5M | 2026-03-04 |
| Thomas P. Gallagher | CEOChairman | — | 1 | $276K | 2026-09-03 |
| Mark I. Massad | Dir | — | 1 | $184K | 2026-06-16 |
| Lisa Moore | Dir | — | 1 | $127K | 2026-06-16 |
| John Smollen | VP | — | 1 | $115K | 2026-06-16 |
| Jamil Nazarali | Dir | — | 1 | $58K | 2025-08-13 |
| Harish Jayabalan | CROVP | — | 1 | $58K | 2026-09-25 |
| Paul Stahlin | Dir | — | 1 | $23K | 2026-06-16 |
| Kenneth W. Lozier | Dir | — | 1 | $23K | 2026-06-16 |
| Insider | Title | Type | Value | Date |
|---|---|---|---|---|
| Douglas M. Schafer Jr. | CIO & VP | Sell | $1.3M | 2026-10-02 |
| Shelly Brown | CSO & VP | Sell | $819K | 2026-09-16 |
| Edward Deitzel | CRO & CCO +1 | Sell | $464K | 2026-09-03 |
| Thomas P. Gallagher | CEO & Chairman | Sell | $2.0M | 2026-09-03 |
| Douglas M. Schafer Jr. | CIO & VP | Sell | $1.9M | 2026-09-02 |
| Judson Gray Teekell | Director | Sell | $353K |
Companies that share insiders with MIAX, and sector peers with recent insider buying. Related by who files, not by how the stocks move.
| 2026-09-02 |
| Barbara J. Comly | VP & Secretary | Sell | $1.8M | 2026-09-02 |
| Thomas P. Gallagher | CEO & Chairman | Sell | $6.2M | 2026-08-19 |
| Cynthia Schwarzkopf | Director | Sell | $214K | 2026-08-17 |
| Lance Emmons | CFO & VP | Sell | $1.5M | 2026-08-17 |
| Kurt M. Eckert | Director | Sell | $49K | 2026-08-04 |
| Judson Gray Teekell | Director | Sell | $137K | 2026-08-04 |
| Barbara J. Comly | VP & Secretary | Sell | $2.0M | 2026-08-04 |
| Thomas P. Gallagher | CEO & Chairman | Sell | $2.2M | 2026-08-04 |
| Harish Jayabalan | CRO & VP | Sell | $918K | 2026-08-04 |