Cynthia Schwarzkopf sold $214K of Miami International Holdings, Inc. (MIAX) stock

Cynthia Schwarzkopf, Dir of Miami International Holdings, Inc. (MIAX), sold 5,000 shares of MIAX stock worth $214K, per an SEC Form 4 filed Aug 19, 2026.

The sale was pre-arranged (a 10b5-1 plan or an option exercise), not a fresh decision.

The trade happened on Aug 17, 2026, 2 days before it was made public.

MIAX has moved -10.8% since the trade date, from $42.41 to $37.84 (Sep 21, 2026 close).