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

MDGL Quotes by TradingView

William John Sibold is President and CEO of MADRIGAL PHARMACEUTICALS, INC.. Currently has a direct ownership of 150,074 shares of MDGL, which is worth approximately $79.4 Million. The most recent transaction as insider was on Dec 04, 2025, when has been sold 2,400 shares (Common Stock) at a price of $575.34 per share, resulting in proceeds of $1,380,816. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 150K
46.45% 3M change
168.53% 12M change
Total Value Held $79.4 Million

William John Sibold Transaction History

Date Transaction Value Shares Traded Shares Held Form
Dec 04 2025
SELL
Open market or private sale
$1,380,816 $575.34 p/Share
2,400 Reduced 1.57%
150,074 Common Stock
Dec 03 2025
BUY
Exercise of conversion of derivative security
-
50,000 Added 24.69%
152,474 Common Stock
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

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