Miami International Holdings's three largest insider shareholders as of April 11, 2026 are Murray Stahl (Director, 9.26Mn shares), Talal Jassim Al-Bahar (Director, 3.62Mn shares), Thomas P. Gallagher (Chairman Ceo, 1.83Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Murray Stahl | - | 0 | 9,260,484 | 06 Mar, 2026 |
| Talal Jassim Al-Bahar | - | 0 | 3,617,296 | 19 Aug, 2025 |
| Thomas P. Gallagher | Chairman Ceo | 0 | 1,827,399 | 01 Apr, 2026 |
| Barbara J. Comly | Evp, Gc Corporate Secretary | 843,844 | 0 | 01 Apr, 2026 |
| Thomas P. Gallagher | Chairman Ceo | 535,863 | 0 | 12 Feb, 2026 |
| Douglas M. Jr Schafer | Evp And Cio | 396,681 | 0 | 18 Mar, 2026 |
| Douglas M. Jr Schafer | Evp And Cio | 396,681 | 0 | 18 Mar, 2026 |
| Shelly Brown | Evp, Chief Strategy Officer | 325,047 | 0 | 09 Apr, 2026 |
| John Smollen | Evp, New Product Development | 170,757 | 0 | 01 Apr, 2026 |
| John Smollen | Evp, New Product Development | 170,757 | 0 | 01 Apr, 2026 |
| Kurt M. Eckert | - | 142,375 | 0 | 20 Mar, 2026 |
| Lance Emmons | Evp And Cfo | 119,262 | 0 | 01 Apr, 2026 |
| Edward Deitzel | Evp, Cro, Cco Miax Exchanges | 116,221 | 0 | 09 Apr, 2026 |
| John Smollen | Evp Traded Products Relation | 0 | 91,666 | 19 Aug, 2025 |
| John Smollen | Evp Traded Products Relation | 0 | 91,666 | 19 Aug, 2025 |
| Judson Gray Teekell | - | 0 | 86,545 | 19 Aug, 2025 |
| Judson Gray Teekell | - | 0 | 86,545 | 19 Aug, 2025 |
| Cynthia Schwarzkopf | - | 81,308 | 0 | 19 Aug, 2025 |
| Cynthia Schwarzkopf | - | 81,308 | 0 | 19 Aug, 2025 |
| Harish Jayabalan | Evp, Ciso And Cro | 73,405 | 0 | 11 Sep, 2025 |
| Judson Gray Teekell | - | 59,338 | 0 | 03 Apr, 2026 |
| Judson Gray Teekell | - | 59,338 | 0 | 03 Apr, 2026 |
| Mark F. Raymond | - | 43,827 | 0 | 19 Aug, 2025 |
| Mark F. Raymond | - | 43,827 | 0 | 19 Aug, 2025 |
| Paul Stahlin | - | 25,083 | 0 | 19 Aug, 2025 |
| Paul Stahlin | - | 25,083 | 0 | 19 Aug, 2025 |
| Mark I. Massad | - | 3,500 | 3,000 | 15 Aug, 2025 |
| Mark I. Massad | - | 3,500 | 3,000 | 15 Aug, 2025 |
| Lisa Moore | - | 5,500 | 0 | 15 Aug, 2025 |
| Lisa Moore | - | 5,500 | 0 | 15 Aug, 2025 |
| Jamil Nazarali | - | 2,500 | 0 | 15 Aug, 2025 |
| Jamil Nazarali | - | 2,500 | 0 | 15 Aug, 2025 |
| Kenneth W. Lozier | - | 1,000 | 0 | 15 Aug, 2025 |
| Lance Emmons | Evp And Cfo | 0 | 4 | 18 Aug, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 08 Apr, 2026 | Shelly Brown | Common Stock | A | 16,434 | $12.00 | 341,481 | D | M |
| 07 Apr, 2026 | Edward Deitzel | Common Stock | A | 762 | $12.00 | 116,983 | D | M |
| 06 Apr, 2026 | Shelly Brown | Common Stock | D | 2,357 | $41.33 | 325,047 | D | S |
| 07 Apr, 2026 | Shelly Brown | Common Stock | A | 900 | $12.00 | 325,947 | D | M |
| 08 Apr, 2026 | Shelly Brown | Common Stock | D | 16,434 | $42.08 | 325,047 | D | S |
| 07 Apr, 2026 | Edward Deitzel | Common Stock | D | 762 | $42.00 | 116,221 | D | S |
| 07 Apr, 2026 | Shelly Brown | Common Stock | D | 900 | $42.00 | 325,047 | D | S |
| 07 Apr, 2026 | Edward Deitzel | Common Stock | A | 4,001 | $12.00 | 120,222 | D | M |
| 08 Apr, 2026 | Shelly Brown | Nonqualified Stock Option (Right to Buy) | D | 16,434 | $0.00 | 48,000 | D | M |
| 07 Apr, 2026 | Edward Deitzel | Common Stock | D | 4,001 | $42.00 | 116,221 | D | S |
| 07 Apr, 2026 | Shelly Brown | Nonqualified Stock Option (Right to Buy) | D | 900 | $0.00 | 64,434 | D | M |
| 08 Apr, 2026 | Edward Deitzel | Common Stock | A | 7,572 | $12.00 | 123,793 | D | M |
| 08 Apr, 2026 | Edward Deitzel | Common Stock | D | 7,572 | $42.02 | 116,221 | D | S |
| 07 Apr, 2026 | Edward Deitzel | Nonqualified Stock Option (Right to Buy) | D | 762 | $0.00 | 7,572 | D | M |
| 07 Apr, 2026 | Edward Deitzel | Nonqualified Stock Option (Right to Buy) | D | 4,001 | $0.00 | 29,333 | D | M |
| 08 Apr, 2026 | Edward Deitzel | Nonqualified Stock Option (Right to Buy) | D | 7,572 | $0.00 | 0 | D | M |
| 06 Apr, 2026 | Shelly Brown | Common Stock | D | 2,357 | $41.33 | 325,047 | D | S |
| 07 Apr, 2026 | Shelly Brown | Common Stock | D | 900 | $42.00 | 324,147 | D | S |
| 02 Apr, 2026 | Judson Gray Teekell | Common Stock | D | 2,700 | $40.00 | 59,338 | D | S |
| 30 Mar, 2026 | Edward Deitzel | Common Stock | D | 707 | $37.50 | 116,221 | D | F |