Darwin Global Management, Ltd. - Sep 30, 2025 SCHEDULE 13G/A Report for INSMED Inc Common Stock, par value $0.01 per share (INSM)

Filing Manager
Darwin Global Management, Ltd.
Reporting Manager
Darwin Global Management, Ltd.
Security
INSMED Inc Common Stock, par value $0.01 per share
Symbol
INSM
Shares outstanding
211M shares
Disclosed Ownership
20.5M shares
Ownership
9.7%
Form type
SCHEDULE 13G/A
Date filed
11/14/2025, 04:30 PM
Date of event
Sep 30, 2025
Previous filing
May 15, 2025
SEC
View on sec.gov

Reporting Managers (3)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Darwin Global Management, Ltd. 9.7% 20.5M 0 20.5M /s/ John Legge John Legge, Director and Chief Financial Officer
Dr. Abhishek Trehan 9.7% 20.5M 0 20.5M /s/ Dr. Abhishek Trehan Dr. Abhishek Trehan, individually
Darwin Global Master Fund, Ltd. 9.5% 20.1M 0 20.1M /s/ John Legge By: Darwin Global Management, Ltd, its Investment Manager, By: John Legge, Director and Chief Financial Officer