Miami International Holdings EVP Exercises Options and Sells Shares

Douglas M. Schafer Jr., EVP and CIO of Miami International Holdings, Inc. (MIAX), executed significant stock transactions on July 2, 2026. He exercised 48,000 stock options at $12 per share, acquiring 6,000 and 42,000 shares respectively through two option exercises. Concurrently, he sold 48,000 shares at a weighted average price of $41.22 per share, resulting in net proceeds from the sale. The transactions were executed pursuant to a Rule 10b5-1 trading plan established on December 16, 2025, indicating pre-planned trading activity. Following these transactions, Schafer's direct ownership decreased to 387,414 shares of common stock. The options exercised were fully vested and had expiration dates in August 2026 and May 2028. The sale was executed in multiple trades with prices ranging from $39.79 to $41.79.