Barbara J. Comly, who serves as Executive Vice President, General Counsel, and Corporate Secretary at Miami International Holdings, Inc. (NASDAQ: MIAX), executed a sale of 28,000 shares of the company's common stock on July 2, 2026. The transaction resulted in proceeds totaling $1,154,160. The shares were sold at prices ranging from $39.79 to $41.79, with a weighted average sale price of $41.22 per share. This transaction was carried out under the guidelines of a Rule 10b5-1 trading plan that was established on December 18, 2025.
The sale of these shares occurred on the same day that Ms. Comly exercised 28,000 nonqualified stock options. These options were fully vested and permitted her to acquire common stock at an exercise price of $12.00 per share, resulting in a total cost of $336,000 for the acquisition. This acquisition of stock through option exercise was also part of the Rule 10b5-1 plan.
Following these transactions, Ms. Comly directly holds 882,984 shares of Miami International Holdings common stock. She also retains 28,000 nonqualified stock options, which are set to expire on August 2, 2026.
In other recent developments, Miami International Holdings reported that the MIAX Exchange Group experienced a 26% increase in year-to-date average daily volume, reaching 10.9 million contracts through June 2026. The company also disclosed the issuance of 1,881,554 shares of common stock to an accredited investor, a current consultant, and nine former consultants between April 1 and June 17.
Shareholders at the company's annual meeting approved all fifteen nominees to the board of directors, who will serve until the 2027 annual meeting. Miami International Holdings has also announced the adoption of a new Senior Executive Annual Bonus Plan, effective for performance periods starting January 1, 2026. This plan will be administered by the Compensation Committee for executive officers, with the CEO overseeing other participants.
Additionally, the Options Clearing Corporation began clearing and settlement services for MIAX Futures Exchange, which started listing Bloomberg equity index futures on May 17, 2026. These updates reflect the company's ongoing activities and strategic initiatives.