Miami International Holdings, Inc. (MIAX) Insider Ownership

Historic Insider Ownership Trends

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).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
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.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
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