Thomas P. Gallagher, Chairman & CEO of MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX), divested 149,700 shares of the company's stock on August 20, 2026. The sale, executed at a price of $41.13 per share, amounted to a total value of approximately $6.16 million.
This transaction represents a significant sale by a top executive. Other recent insider activity at MIAX includes sales by Cynthia Schwarzkopf, Lance Emmons, Judson Gray Teekell, and Douglas M. Schafer Jr.
Insider selling can occur for a variety of reasons, such as personal financial planning, tax obligations, or diversification strategies, and may not necessarily indicate a negative view of the company's future prospects.