LEWIS WILLIAM

PrivateCIK: 1402051
Location

BRIDGEWATER, NJ

LEWIS WILLIAM (Chair and CEO) sold 3.4% of their position (10.70K shares) of INSMED INC on the open market

Open‑market sale worth $1.54M — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 3 sales
InsiderLEWIS WILLIAMCIK 1402051
IssuerINSMED INCCIK 1104506
DirectorOfficer· Chair and CEO
Since Mar 2026
-10.70K
Net shares
Net seller
$1.54M
Total sold
3
Open market trades
0B · 3S
7
Total transactions
10.70K acquired · 21.40K disposed
Non-Derivative Transactions5

Common Stock

Direct
M · Option Exercise

Shares

+6.26K

Price / share

$30.46

Trade value

$190.65K

% of position

2.1%
3/19/2026
301.19K307.44K

Common Stock

Direct
M · Option Exercise

Shares

+4.44K

Price / share

$17.16

Trade value

$76.19K

% of position

1.4%
3/19/2026
307.44K311.88K

Common Stock

Direct
S · Sale

Shares

1.63K

Price / share

$142.17

Trade value

$231.59K

% of position

0.5%
3/19/2026
311.88K310.25K

Common Stock

Direct
S · Sale

Shares

4.54K

Price / share

$143.42

Trade value

$650.70K

% of position

1.5%
3/19/2026
310.25K305.72K

Common Stock

Direct
S · Sale

Shares

4.53K

Price / share

$144.11

Trade value

$653.25K

% of position

1.5%
3/19/2026
305.72K301.19K
Total

Net shares

+0.00

Net value

-$1.27M

Derivative Transactions2

Stock Option (right to buy)

Direct
M · Option Exercise
Converts to

Common Stock

6.26K shares

Shares

6.26K

Strike price

30.46

Held after

50.07K

Exercisable

3/19/2026

Stock Option (right to buy)

Direct
M · Option Exercise
Converts to

Common Stock

4.44K shares

Shares

4.44K

Strike price

17.16

Held after

35.52K

Exercisable

3/19/2026
Non-Derivative Holdings (Post-Transaction)1

Common Stock

Indirect
Shares owned233.92K
Total
233.92K indirect233.92K
Derivative Holdings (Post-Transaction)0
No derivative holdings reported
LEWIS WILLIAM — Insider Transaction (Form 4) Filed Mar 20, 2026 | Finecho