SIBOLD WILLIAM JOHN

PrivateCIK: 1518611
Location

WEST CONSHOHOCKEN, PA

SIBOLD WILLIAM JOHN (President and CEO) sold 1.2% of their position (2.50K shares) of MADRIGAL PHARMACEUTICALS, INC. on the open market

Open‑market sale worth $1.37M — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 10 sales
InsiderSIBOLD WILLIAM JOHNCIK 1518611
DirectorOfficer· President and CEO
Since Mar 2026
-2.50K
Net shares
Net seller
$1.37M
Total sold
10
Open market trades
0B · 10S
12
Total transactions
50K acquired · 52.50K disposed
Non-Derivative Transactions11

Common Stock

Direct
M · Option Exercise

Shares

+50K

Price / share

Trade value

% of position

30.9%
7/17/2026
161.83K211.83K

Common Stock

Direct
S · Sale

Shares

140.00

Price / share

$542.75

Trade value

$75.98K

% of position

0.1%
7/20/2026
211.83K211.69K

Common Stock

Direct
S · Sale

Shares

110.00

Price / share

$543.79

Trade value

$59.82K

% of position

0.1%
7/20/2026
211.69K211.58K

Common Stock

Direct
S · Sale

Shares

545.00

Price / share

$544.71

Trade value

$296.87K

% of position

0.3%
7/20/2026
211.58K211.03K

Common Stock

Direct
S · Sale

Shares

275.00

Price / share

$545.71

Trade value

$150.07K

% of position

0.1%
7/20/2026
211.03K210.76K

Common Stock

Direct
S · Sale

Shares

269.00

Price / share

$547.08

Trade value

$147.16K

% of position

0.1%
7/20/2026
210.76K210.49K

Common Stock

Direct
S · Sale

Shares

680.00

Price / share

$547.70

Trade value

$372.43K

% of position

0.3%
7/20/2026
210.49K209.81K

Common Stock

Direct
S · Sale

Shares

47.00

Price / share

$548.87

Trade value

$25.80K

% of position

0.0%
7/20/2026
209.81K209.76K

Common Stock

Direct
S · Sale

Shares

153.00

Price / share

$550.01

Trade value

$84.15K

% of position

0.1%
7/20/2026
209.76K209.61K

Common Stock

Direct
S · Sale

Shares

1.00

Price / share

$550.72

Trade value

$550.72

% of position

0.0%
7/20/2026
209.61K209.61K

Common Stock

Direct
S · Sale

Shares

280.00

Price / share

$555.05

Trade value

$155.41K

% of position

0.1%
7/20/2026
209.61K209.33K
Total

Net shares

+47.50K

Net value

-$1.37M

Derivative Transactions1

Performance Restricted Stock Units

Direct
M · Option Exercise
Converts to

Common Stock

50K shares

Shares

50K

Strike price

Held after

0.00

Exercisable

7/17/2026