Wednesday, October 28, 2026
Data from SEC filings, checked daily
Public filings, plainly told
StockCIK 1157601

MADRIGAL PHARMACEUTICALS, INC. (MDGL): Insider Trades and Fund Holdings

In the past 12 months, MADRIGAL PHARMACEUTICALS, INC. insiders reported 0 open-market purchases worth $0 and 3 sales worth $6.58M; 2 of the sales were reported as made under a 10b5-1 trading plan.

0Insider buys, 12 months
$0Bought by insiders, 12 months
$6.58MSold by insiders, 12 months
1Tracked funds holding

Recent insider trades

Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Sep 11, 2026.

Recent MDGL insider trades
FiledTradedInsiderRoleTypeSharesPrice ($)ValueHoldingFiling
Sep 11Sep 9William John SiboldCEOCEO▼ SELL10b5-16,362535.59$3.41M−3.0%Form 4 ↗
Sep 11Sep 11William John SiboldCEOCEO▼ SELL10b5-15,221542.39$2.83M−2.6%Form 4 ↗
Aug 20Aug 17Shannon T. KelleyGeneral CounselGeneral Counsel▼ SELL664514.97$342K−5.5%Form 4 ↗
Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings

Insiders who traded in the past year

InsiderRoleBuysBoughtSellsSoldLatest
William John SiboldCEO0$02$6.24MSep 11, 2026
Shannon T. KelleyGeneral Counsel0$01$342KAug 20, 2026

Tracked funds that report MDGL

From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.

FundQuarterSharesValue% of portfolioChange
Renaissance TechnologiesQ2 202645,942$24.7M0.03%▼ −36.1%
Bridgewater AssociatesQ2 20260$00.00%▼ Sold out
Source: SEC Form 13F-HR filings, retrieved Oct 28, 2026. How we read filings

Reading these numbers

Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →