Douglas M. Schafer Jr sold $1.6M of MIAX stock

Douglas M. Schafer Jr, EVP and CIO of Miami International Holdings, Inc. (MIAX), sold 48,000 shares of MIAX stock worth $1.6M, per an SEC Form 4 filed Nov 5, 2026.

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

The trade happened on Nov 3, 2026, 2 days before it was made public.

MIAX has moved +1.8% since the trade date, from $33.86 to $34.48 (Nov 6, 2026 close).