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 $1.56M — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 4 sales
InsiderLEWIS WILLIAMCIK 1402051
IssuerINSMED INCCIK 1104506
DirectorOfficer· Chair and CEO
Since Mar 2026
-10.70K
Net shares
Net seller
$1.56M
Total sold
4
Open market trades
0B · 4S
8
Total transactions
10.70K acquired · 21.40K disposed
Non-Derivative Transactions6

Common Stock

Direct
M · Option Exercise

Shares

+6.26K

Price / share

$30.46

Trade value

$190.65K

% of position

2.1%
3/5/2026
301.19K307.44K

Common Stock

Direct
M · Option Exercise

Shares

+4.44K

Price / share

$17.16

Trade value

$76.19K

% of position

1.4%
3/5/2026
307.44K311.88K

Common Stock

Direct
S · Sale

Shares

2.08K

Price / share

$144.23

Trade value

$300.43K

% of position

0.7%
3/5/2026
311.88K309.80K

Common Stock

Direct
S · Sale

Shares

2.59K

Price / share

$145.27

Trade value

$376.10K

% of position

0.8%
3/5/2026
309.80K307.21K

Common Stock

Direct
S · Sale

Shares

3.90K

Price / share

$146.66

Trade value

$571.83K

% of position

1.3%
3/5/2026
307.21K303.31K

Common Stock

Direct
S · Sale

Shares

2.13K

Price / share

$147.54

Trade value

$313.97K

% of position

0.7%
3/5/2026
303.31K301.19K
Total

Net shares

+0.00

Net value

-$1.30M

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

56.33K

Exercisable

3/5/2026

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

39.96K

Exercisable

3/5/2026
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 5, 2026 | Finecho