LEWIS WILLIAM

PrivateCIK: 1402051
Location

BRIDGEWATER, NJ

LEWIS WILLIAM (Chair and CEO) sold 8.6% of their position (25.56K shares) of INSMED INC on the open market

Open‑market sale worth $2.72M — a moderate reduction. 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
-25.56K
Net shares
Net seller
$2.72M
Total sold
3
Open market trades
0B · 3S
7
Total transactions
10.70K acquired · 36.26K disposed
Non-Derivative Transactions5

Common Stock

Direct
M · Option Exercise

Shares

+6.26K

Price / share

$30.46

Trade value

$190.65K

% of position

2.2%
5/18/2026
287.90K294.16K

Common Stock

Direct
M · Option Exercise

Shares

+4.44K

Price / share

$17.16

Trade value

$76.19K

% of position

1.5%
5/18/2026
294.16K298.60K

Common Stock

Direct
S · Sale

Shares

5.75K

Price / share

$105.32

Trade value

$605.91K

% of position

1.9%
5/18/2026
298.60K292.85K

Common Stock

Direct
S · Sale

Shares

11.84K

Price / share

$106.39

Trade value

$1.26M

% of position

4.0%
5/18/2026
292.85K281.01K

Common Stock

Direct
S · Sale

Shares

7.97K

Price / share

$106.97

Trade value

$853.09K

% of position

2.8%
5/18/2026
281.01K273.04K
Total

Net shares

14.87K

Net value

-$2.45M

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

25.04K

Exercisable

5/18/2026

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

17.76K

Exercisable

5/18/2026
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 May 20, 2026 | Finecho