BRENNAN DAVID R

PrivateCIK: 1609305
Location

BRIDGEWATER, NJ

BRENNAN DAVID R sold 38.9% of their position (25K shares) of INSMED INC on the open market

Open‑market sale worth $3.10M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderBRENNAN DAVID RCIK 1609305
IssuerINSMED INCCIK 1104506
Director
Since Feb 2026
-25K
Net shares
Net seller
$3.10M
Total sold
1
Open market trades
0B · 1S
1
Total transactions
25K disposed
Non-Derivative Transactions1

Common Stock

Direct
S · Sale

Shares

25K

Price / share

$124.00

Trade value

$3.10M

% of position

38.9%
9/9/2026
64.24K39.24K
Total

Net shares

25K

Net value

-$3.10M

Derivative Transactions0
No derivative transactions reported
Non-Derivative Holdings (Post-Transaction)1

Common Stock

Indirect
Shares owned60K
Total
60K indirect60K
Derivative Holdings (Post-Transaction)0
No derivative holdings reported
BRENNAN DAVID R — Insider Transaction (Form 4) Filed Sep 11, 2026 | Finecho