SIBOLD WILLIAM JOHN

PrivateCIK: 1518611
Location

WEST CONSHOHOCKEN, PA

Senior insider sale

President and CEO at MADRIGAL PHARMACEUTICALS, INC. — senior position signals high conviction

$7.56M

14.08K shares

What this filing means

SIBOLD WILLIAM JOHN plans to sell 14.08K shares of MADRIGAL PHARMACEUTICALS, INC. valued at approximately $7.56M. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.

InsiderSIBOLD WILLIAM JOHNCIK 1518611
DirectorOfficer· President and CEO
Since Mar 2026
14.08K
Shares to sell
$7.56M
Approx. market value
5.22K
Acquired (3 months)
1
Planned
2 completed
Securities Acquired — Last 3 Months1
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Restricted Stock Units

N/A

9/8/2025
5.22K
Total acquired5.22K
Planned & Completed Dispositions3
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Completed

Completed

Units to sell

6.36K

Market value

$3.41M

9/9/2026
Completed

Units to sell

2.50K

Market value

$1.37M

7/20/2026

Planned — Approximate Date

NASDAQPlanned

Units to sell

5.22K

Market value

$2.78M

9/11/2026
Total

Units

14.08K

Value

$7.56M

SIBOLD WILLIAM JOHN — Planned Insider Sale (Form 144) | Finecho