BONSTEIN SARA

PrivateCIK: 1604019
Location

BRUDGEWATER, NJ

BONSTEIN SARA (Chief Financial Officer) sold 40.7% of their position (57.76K shares) of INSMED INC on the open market

Open‑market sale worth $5.54M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 2 sales
InsiderBONSTEIN SARACIK 1604019
IssuerINSMED INCCIK 1104506
Officer· Chief Financial Officer
Since Jan 2020
-57.76K
Net shares
Net seller
$5.54M
Total sold
2
Open market trades
0B · 2S
10
Total transactions
47.89K acquired · 105.65K disposed
Non-Derivative Transactions6

Common Stock

Direct
M · Option Exercise

Shares

+6.24K

Price / share

$19.74

Trade value

$123.26K

% of position

6.7%
7/7/2025
93.89K100.14K

Common Stock

Direct
M · Option Exercise

Shares

+4.36K

Price / share

$24.70

Trade value

$107.74K

% of position

4.4%
7/7/2025
100.14K104.50K

Common Stock

Direct
M · Option Exercise

Shares

+23.57K

Price / share

$26.43

Trade value

$622.82K

% of position

22.6%
7/7/2025
104.50K128.06K

Common Stock

Direct
M · Option Exercise

Shares

+13.72K

Price / share

$26.46

Trade value

$362.95K

% of position

10.7%
7/7/2025
128.06K141.78K

Common Stock

Direct
S · Sale

Shares

35.58K

Price / share

$95.66

Trade value

$3.40M

% of position

25.1%
7/7/2025
141.78K106.20K

Common Stock

Direct
S · Sale

Shares

22.18K

Price / share

$96.19

Trade value

$2.13M

% of position

20.9%
7/7/2025
106.20K84.02K
Total

Net shares

9.88K

Net value

-$4.32M

Derivative Transactions4

Stock Option (right to buy)

Direct
M · Option Exercise
Converts to

Common Stock

6.24K shares

Shares

6.24K

Strike price

19.74

Held after

18.88K

Exercisable

7/7/2025

Stock Option (right to buy)

Direct
M · Option Exercise
Converts to

Common Stock

4.36K shares

Shares

4.36K

Strike price

24.70

Held after

0.00

Exercisable

7/7/2025

Stock Option (right to buy)

Direct
M · Option Exercise
Converts to

Common Stock

23.57K shares

Shares

23.57K

Strike price

26.43

Held after

15.71K

Exercisable

7/7/2025

Stock Option (right to buy)

Direct
M · Option Exercise
Converts to

Common Stock

13.72K shares

Shares

13.72K

Strike price

26.46

Held after

12.02K

Exercisable

7/7/2025
BONSTEIN SARA — Insider Transaction (Form 4) Filed Jul 9, 2025 | Finecho