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Insider

William John Sibold

President and CEO

William John Sibold (President and CEO) filed 5 Form 4 reports in the trailing twelve months (0 purchases, 5 sales), most often in Madrigal Pharmaceuticals, Inc. (MDGL). The largest single filing was $5.8M of MDGL (10,846 sh across 18 lots, as filed), executed Sep 9.

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Return, ttmiAverage return per filing, trailing twelve months
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
returns measure stock purchases only
Filings, ttm
5
0 buys · 5 sells
Median delay
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$9.8M
shares × price, as filed
Last traded
Sep 11
Filed Sep 11

Median ADV $194.4M across their filed names

Open performance
Volume by month
$5.8M$2.9M$0Oct 2024Apr 2025Oct 2025Apr 2026Jan 2025 · sells $531KAug 2025 · sells $3.0MSep 2025 · sells $3.2MDec 2025 · sells $1.4MJan 2026 · sells $777KMar 2026 · sells $718KJul 2026 · sells $1.1MSep 2026 · sells $5.8M
Buys $0 Sells $16.7M

Shares × price, as filed · by filing month · past 24 months

Sectors filed on
Healthcare 5 filings

Sector per market data · by filing · past 12 months

Most traded names
MDGL Madrigal Pharmaceuticals, Inc. MDGL · 0 buys · 8 sells 8 filings
Recent filings
MDGLSALE Madrigal Pharmaceuticals, Inc. View filing → $1.6M
6,363 sh × $243.83
Exec Sep 9 2024
Filed Sep 11 2024 · 5:30 PM ET