Miami International Holdings, INC Form 4 insider transactions

A Miami International Holdings, Inc. executive converted preferred and nonvoting common stock to common stock and exercised various stock options.

A Miami International Holdings executive converted preferred and nonvoting common stock, along with various stock options, into common stock following the company's IPO.

MIAMI INTERNATIONAL HOLDINGS, INC. CEO Thomas P. Gallagher reported significant conversions of preferred and nonvoting stock into common shares, alongside option exercises.

Judson Gray Teekell, a director at Miami International Holdings, Inc., reported conversions of preferred and nonvoting common stock and the exercise of various stock options into common stock.

A director at Miami International Holdings, Inc. converted preferred and nonvoting common stock to common shares and exercised multiple stock options.

MIAMI INTERNATIONAL HOLDINGS, INC. EVP and CFO Lance Emmons converted preferred shares and purchased common stock, while holding significant vested options following the company's IPO.

Miami International Holdings, Inc. Director Lisa Moore reported a future acquisition of 5,500 common shares at $23 each, executed under a Rule 10b5-1 trading plan.

A Miami International Holdings, Inc. executive has filed a Form 4 indicating a pre-planned purchase of 2,500 shares of common stock in August 2025.

MIAX Director Paul Stahlin reported a direct purchase of 1,000 common shares at $23, effective August 13, 2025, signaling insider confidence.

A director of Miami International Holdings, Inc. purchased 2,500 shares of common stock for $23 per share.

MIAX's EVP and CIO, Douglas M. Schafer Jr., had 21,710 shares withheld for tax obligations related to restricted stock awards, not a sale.

A Miami International Holdings executive surrendered shares to cover tax obligations related to restricted stock awards.

Miami International Holdings, Inc. granted its TISEG CEO, Cees Vermaas, 15,000 nonqualified stock options with a $23 exercise price, vesting over three years.

Miami International Holdings EVP John Smollen purchased 5,000 shares of common stock, signaling confidence in the company's future.

A Miami International Holdings executive reported an open market purchase of common stock and a disposition of nonvoting common stock for tax withholding.

Miami International Holdings CEO Thomas P. Gallagher plans to acquire 12,000 shares of company common stock at $23 per share in August 2025 under a pre-arranged trading plan.

Kenneth W. Lozier, a Director at Miami International Holdings, Inc. (MIAX), purchased 1,000 shares of common stock at $23 per share.

Miami International Holdings Director Mark I. Massad acquired 8,000 shares of common stock for $23 per share, totaling $184,000, through direct and indirect holdings.