LEWIS WILLIAM

PrivateCIK: 1402051
Location

BRIDGEWATER, NJ

LEWIS WILLIAM (Chair and CEO) sold 4.4% of their position (13.28K 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 · 1 sale
InsiderLEWIS WILLIAMCIK 1402051
IssuerINSMED INCCIK 1104506
DirectorOfficer· Chair and CEO
Since Mar 2026
-13.28K
Net shares
Net seller
$1.54M
Total sold
1
Open market trades
0B · 1S
1
Total transactions
13.28K disposed
Non-Derivative Transactions1

Common Stock

Direct
S · Sale

Shares

13.28K

Price / share

$116.18

Trade value

$1.54M

% of position

4.4%
5/13/2026
301.19K287.90K
Total

Net shares

13.28K

Net value

-$1.54M

Derivative Transactions0
No derivative transactions reported
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 15, 2026 | Finecho