Miami International Holdings, INC Form 4 insider transactions

Judson Gray Teekell, a Director of Miami International Holdings, Inc., sold 3,000 shares of common stock on August 4, 2026 for $45.79 per share.

Cynthia Schwarzkopf, a Director of Miami International Holdings, Inc., sold 5,000 shares of common stock on July 15, 2026 for $42.00 per share.

Barbara J. Comly, EVP, GC & Corporate Secretary of Miami International Holdings, Inc., sold 28,000 shares of common stock on July 13, 2026 for $41.98 per share.

Thomas P. Gallagher, Chairman & CEO and a Director of Miami International Holdings, Inc., sold 70,000 shares of common stock on July 13, 2026 for $42.52 per share.

David A. Brown, a Director at Miami International Holdings, Inc. (MIAX), has acquired 171 shares of common stock.

Thomas P. Gallagher, Chairman & CEO of Miami International Holdings, Inc. (MIAX), executed trades involving company stock and stock options under a pre-established Rule 10b5-1 plan.

Jayabalan Harish, EVP, CISO and CRO of Miami International Holdings, Inc., reported transactions involving common stock and stock options on July 6, 2026.

Edward Deitzel, EVP, CRO, CCO of MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX), reported transactions involving common stock and stock options on July 6, 2026, executed under a Rule 10b5-1 trading plan.

Shelly Brown, EVP, Chief Strategy Officer of MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX), reported a transaction involving the acquisition of 16,000 common stock shares at $12 each and the disposition of 16,000 common stock shares at a weighted average price of $42.13, executed under a Rule 10b5-1 trading plan.

Judson Gray Teekell, a Director at Miami International Holdings, Inc. (MIAX), reported the sale of 3,000 common shares on July 2, 2026, executed under a pre-established Rule 10b5-1 trading plan.

Eckert Kurt M., a Director at Miami International Holdings, Inc. (MIAX), executed trades involving common stock and stock options under a pre-arranged Rule 10b5-1 plan.

Barbara J. Comly, EVP, GC & Corporate Secretary of Miami International Holdings, Inc., executed a Rule 10b5-1 plan sale of 28,000 shares.

Douglas M. Schafer Jr., EVP and CIO of Miami International Holdings, Inc. (MIAX), reported transactions involving common stock and stock options under a pre-arranged 10b5-1 trading plan.

Cees Vermaas, CEO of TISEG at Miami International Holdings, Inc., acquired 4,660 restricted stock units and was granted 4,793 stock options.

Jayabalan Harish, EVP, CISO and CRO of Miami International Holdings, Inc., acquired restricted stock units and stock options on June 16, 2026.

MIAX Exchanges reports that EVP, CRO, CCO Edward Deitzel acquired 9,319 restricted stock units and was granted options for 9,986 shares.

SEC Form 4 filing details equity transactions by John Smollen, EVP of New Product Development at Miami International Holdings, Inc. (MIAX).

Douglas M. Schafer Jr., EVP and CIO of Miami International Holdings, Inc., received a significant grant of restricted stock units and stock options.

Lance Emmons, EVP and CFO of Miami International Holdings, Inc., reported the acquisition of 37,276 shares of common stock and the grant of stock options on June 16, 2026.

Shelly Brown, EVP, Chief Strategy Officer of Miami International Holdings, Inc. (MIAX), acquired 37,276 shares of common stock and was granted stock options on June 16, 2026.

Barbara J. Comly reports on stock transactions, including acquisition of restricted stock units and stock options, at Miami International Holdings, Inc.

Thomas P. Gallagher, Chairman & CEO of Miami International Holdings, Inc. (MIAX), reported the acquisition of common stock and stock options on June 16, 2026.

Director David A. Brown acquired 7,237 shares of common stock and 5,142 stock options in Miami International Holdings, Inc.

Director Talal Jassim Al-Bahar acquired 7,237 shares of Miami International Holdings, Inc. through restricted stock unit grants.

Kenneth W. Lozier, a Director at Miami International Holdings, Inc. (MIAX), reported transactions involving the acquisition of restricted stock units and stock options.

Jill E. Sommers, a Director at Miami International Holdings, Inc. (MIAX), reported transactions involving the acquisition of restricted stock units and nonqualified stock options.

Director Cynthia Schwarzkopf reported transactions involving the acquisition of restricted stock units and stock options for Miami International Holdings, Inc. (MIAX).

Lee Becker, a Director at MIAMI INTERNATIONAL HOLDINGS, INC., acquired 2,267 shares of common stock upon the vesting of restricted stock units.

Director Mark Massad reported transactions involving the acquisition of 2,267 and 4,970 shares of common stock in Miami International Holdings, Inc. (MIAX).

Director Lisa Moore of Miami International Holdings, Inc. (MIAX) reported transactions involving the acquisition of common stock and restricted stock units.