Trade Summary

Yesterday, Gallagher Thomas P., serving as COB, CEO at Miami International Holdings, Inc. (MIAX), sold 54,229 shares at $47.26 per share, for a total transaction value of $2,562,863.00. Following this transaction, Gallagher Thomas P. now holds 1,723,275 shares of MIAX.

This sale represents a 3.00% decrease in Gallagher Thomas P.'s stake in the company. This is considered a medium-conviction trade.

The trade was executed on Monday, May 4, 2026 and publicly disclosed via SEC Form 4 filing on Tuesday, May 5, 2026, 1 day after the trade was made.

Miami International Holdings, Inc. operates in the NONE sector, specifically within the NONE industry. Insider selling activity in this sector can provide valuable signals about industry trends and company-specific developments.