MIAX · MIAMI INTERNATIONAL HOLDINGS, INC.

Summary

On March 24, 2026, Lee Becker informed the Board of Miami International Holdings, Inc. that he will not stand for reelection at the 2026 Annual Meeting of Shareholders, with no disagreements on operations, policies or practices. On the same date, the Board elected Jill E. Sommers as a director effective March 25, 2026, to fill a vacancy until the Annual Meeting.

Key takeaways

• Lee Becker not standing for reelection at 2026 Annual Meeting
• Becker's decision not due to any disagreement with Company
• Becker remains on Board until 2026 Annual Meeting
• Jill E. Sommers elected as director effective March 25, 2026
• Sommers to serve until 2026 Annual Meeting or successor qualified
• Sommers compensated as other non-employee directors; no family relationships or Item 404 transactions