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Insider selling
William John Sibold sold $6.2M of Madrigal Pharmaceuticals, Inc. (MDGL) stock
William John Sibold, President and CEO of Madrigal Pharmaceuticals, Inc. (MDGL), sold 11,583 shares of MDGL stock worth $6.2M, per an SEC Form 4 filed Sep 11, 2026.
The sale was pre-arranged (a 10b5-1 plan or an option exercise), not a fresh decision.
The trade happened on Sep 9, 2026, 2 days before it was made public.
MDGL has moved -4.5% since the trade date, from $546.66 to $521.96 (Sep 21, 2026 close).
- Traded
- Sep 9, 2026
- Disclosed
- Sep 11, 2026
- Filing delay
- 2 days
- Price since
- -4.5%
- Role
- President and CEO
- Source
- SEC Form 4
More MDGL insider and Congress trades
From a public SEC Form 4, linked above. Not investment advice, and not a recommendation to buy or sell.