Sara Bonstein - 06 Jan 2026 Form 4 Insider Report for INSMED Inc (INSM)

Role
Chief Financial Officer
Signature
/s/ Sara Bonstein, by Michael A. Smith as Attorney-in-fact
Issuer symbol
INSM
Transactions as of
06 Jan 2026
Net transactions value
-$808,733
Form type
4
Filing time
08 Jan 2026, 17:21:24 UTC
Previous filing
06 Jan 2026
Next filing
04 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Bonstein Sara Chief Financial Officer 700 US HIGHWAY 202/206, BRIDGEWATER /s/ Sara Bonstein, by Michael A. Smith as Attorney-in-fact 08 Jan 2026 0001604019

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction INSM Common Stock Sale $262,942 -1,517 -1.8% $173.33 83,631 06 Jan 2026 Direct F1
transaction INSM Common Stock Sale $293,767 -1,678 -2% $175.07 81,953 07 Jan 2026 Direct F1
transaction INSM Common Stock Sale $252,024 -1,447 -1.8% $174.17 80,506 08 Jan 2026 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Shares sold to satisfy tax withholding obligations upon the vesting of Restricted Stock Units and to cover related broker fees.