Reporting Manager
Darwin Global Management, Ltd.
Symbol
INSM
Shares outstanding
181,152,647 shares
Disclosed Ownership
15,397,975 shares
Ownership
8.5%
Form type
SCHEDULE 13G/A
Filing time
15 May 2025, 16:30:12 UTC
Date of event
31 Mar 2025
Previous filing
14 Feb 2025
Next filing
14 Nov 2025

Quoteable Key Fact

"Darwin Global Management, Ltd. disclosed 8.5% ownership in INSMED Inc Common Stock, par value $0.01 per share (INSM) on 31 Mar 2025."

Quick Takeaways

  • Darwin Global Management, Ltd. filed SCHEDULE 13G/A for INSMED Inc Common Stock, par value $0.01 per share (INSM).
  • Disclosed ownership: 8.5%.
  • Date of event: 31 Mar 2025.

What Changed

  • Previous schedule filing date: 14 Feb 2025.
  • Current filing was accepted on 15 May 2025, 16:30.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Source Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (3)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Darwin Global Management, Ltd. 8.5% 15,397,975 0 15,397,975 /s/ John Legge John Legge, Director and Chief Financial Officer
Dr. Abhishek Trehan 8.5% 15,397,975 0 15,397,975 /s/ Dr. Abhishek Trehan Dr. Abhishek Trehan, individually
Darwin Global Master Fund, Ltd. 7.5% 13,547,617 0 13,547,617 /s/ John Legge By: Darwin Global Management, Ltd, its Investment Manager, By: John Legge, Director and Chief Financial Officer
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