William John Sibold sold $1.4M of MDGL stock

William John Sibold, President and CEO of Madrigal Pharmaceuticals, Inc. (MDGL), sold 2,500 shares of MDGL stock worth $1.4M, per an SEC Form 4 filed Jul 21, 2026.

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

The trade happened on Jul 17, 2026, 4 days before it was made public.

MDGL has moved -27.8% since the trade date, from $553.48 to $399.63 (Nov 6, 2026 close).