William John Sibold

MDGL

William John Sibold serves as director, officer: President and CEO at Madrigal Pharmaceuticals, Inc. (MDGL). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

6 trades

$8.01M

Net Position

Net Seller

$8.01M

Companies Traded

MDGL

Active Period

Sep 2024 – Mar 2026

6 total trades

Most Recent

Sell MDGL

Mar 6, 2026 · $718.3K

William John Sibold's Insider Trading at Madrigal Pharmaceuticals, Inc. (MDGL)

Buys

0 · $0.00

Sells

6 · $8.01M

Total Shares Bought

Total Shares Sold

21,203

MDGL Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Mar 6, 2026	Sell	1,663	$431.94	$718.3K	161,829
Jan 26, 2026	Sell	1,577	$492.42	$776.5K	0
Dec 3, 2025	Sell	2,400	$575.34	$1.38M	0
Aug 21, 2025	Sell	7,616	$400.18	$3.05M	0
Jan 27, 2025	Sell	1,584	$335.24	$531.0K	54,303
Sep 11, 2024	Sell	6,363	$243.83	$1.55M	55,887