SIBOLD WILLIAM JOHN

PrivateCIK: 1518611
Location

WEST CONSHOHOCKEN, PA

SIBOLD WILLIAM JOHN (President and CEO) sold 6.5% of their position (7.62K shares) of MADRIGAL PHARMACEUTICALS, INC. on the open market

Open‑market sale worth $3.05M — a moderate reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 2 sales
InsiderSIBOLD WILLIAM JOHNCIK 1518611
DirectorOfficer· President and CEO
Since Mar 2026
-7.62K
Net shares
Net seller
$3.05M
Total sold
2
Open market trades
0B · 2S
2
Total transactions
7.62K disposed
Non-Derivative Transactions2

Common Stock

Direct
S · Sale

Shares

6.49K

Price / share

$400.03

Trade value

$2.59M

% of position

5.5%
8/21/2025
117.37K110.88K

Common Stock

Direct
S · Sale

Shares

1.13K

Price / share

$401.00

Trade value

$453.53K

% of position

1.0%
8/21/2025
110.88K109.75K
Total

Net shares

7.62K

Net value

-$3.05M

Derivative Transactions0
No derivative transactions reported
SIBOLD WILLIAM JOHN — Insider Transaction (Form 4) Filed Aug 21, 2025 | Finecho