Sibold William John - Insider Non-Derivative Transactions at MADRIGAL PHARMACEUTICALS, INC. (MDGL) - (SEC)

Updated on January 3, 2026.

According to recent SEC insider information filed on Dec 4, 2025, Sibold William John's relationship to MADRIGAL PHARMACEUTICALS, INC. (MDGL) is Director,Officer (President and CEO), and currently has 150,074 shares of Common Stock.

The chart below shows the number of shares owned, and the table shows the recent insider transactions.

You can see similar information for other MDGL insiders.

Related Topics: SEC Topic List.

Data Source: SEC.

Sibold William John - Insider Non-Derivative Transactions of MDGL Common Stock

Sibold William John - Insider Non-Derivative Transactions at MDGL

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Date	Transaction	No. of Shares	Price Per Share	Shares Owned After Transactions
Dec 5, 2025	Sell -- (Common Stock)	2400	575.34	150074
Dec 4, 2025	M -- (Common Stock)	50000	0	152474
Sep 10, 2025	Sell -- (Common Stock)	7279	445.63	102474
Aug 22, 2025	Sell -- (Common Stock)	1131	401	109753
Aug 22, 2025	Sell -- (Common Stock)	6485	400.03	110884
Mar 6, 2025	Acquisition -- (Common Stock)	13066	0	117369
Feb 28, 2025	M -- (Common Stock)	50000	0	104303
Jan 25, 2025	Sell -- (Common Stock)	1584	335.24	54303
Sep 10, 2024	Sell -- (Common Stock)	6363	243.83	55887
Jan 24, 2024	Acquisition -- (Common Stock)	12250	0	62250
Sep 12, 2023	Acquisition -- (Common Stock)	50000	0	50000