William John Sibold Madrigal Pharmaceuticals, Inc. (MDGL) insider trading activity

William John Sibold is President and CEO of MADRIGAL PHARMACEUTICALS, INC.. Currently has a direct ownership of 102,474 shares of MDGL, which is worth approximately $43.8 Million. The most recent transaction as insider was on Sep 09, 2025, when has been sold 7,279 shares (Common Stock) at a price of $445.63 per share, resulting in proceeds of $3,243,740. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 102K

12.69% 3M change

83.36% 12M change

Total Value Held $43.8 Million

William John Sibold Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Sep 09 2025	SELL Open market or private sale	$3,243,740 $445.63 p/Share	7,279 Reduced 6.63%	102,474 Common Stock
Aug 21 2025	SELL Open market or private sale	$3,050,284 $400.51 p/Share	7,616 Reduced 6.49%	109,753 Common Stock
Mar 05 2025	BUY Grant, award, or other acquisition	-	13,066 Added 10.02%	117,369 Common Stock
Feb 27 2025	BUY Exercise of conversion of derivative security	-	50,000 Added 32.4%	104,303 Common Stock
Jan 24 2025	SELL Open market or private sale	$531,020 $335.24 p/Share	1,584 Reduced 2.83%	54,303 Common Stock
Sep 09 2024	SELL Open market or private sale	$1,551,490 $243.83 p/Share	6,363 Reduced 10.22%	55,887 Common Stock
Jan 23 2024	BUY Grant, award, or other acquisition	-	12,250 Added 16.44%	62,250 Common Stock
Sep 11 2023	BUY Grant, award, or other acquisition	-	50,000 Added 50.0%	50,000 Common Stock

WJS

William John Sibold

President and CEO

West Conshohocken, PA

Institutional Portfolio Updates

Receive a notification when an Institution or Guru buys or sells MDGL shares.

Notify only if

Value

Insider Trading

Get notified when an Madrigal Pharmaceuticals, Inc. insider buys or sells MDGL shares.

Notify only if

Operation

Value

Type

News

Receive news related to MADRIGAL PHARMACEUTICALS, INC.

Track Activities on MDGL

Account