Quick Takeaways
- Darwin Global Management, Ltd. filed SCHEDULE 13G/A for INSMED Inc Common Stock, par value $0.01 per share (INSM).
- Disclosed ownership: 9.7%.
- Date of event: 30 Sep 2025.
Darwin Global Management, Ltd. - 30 Sep 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.
- Symbol
- INSM
- Shares outstanding
- 210,901,495 shares
- Disclosed Ownership
- 20,457,445 shares
- Ownership
- 9.7%
- Form type
- SCHEDULE 13G/A
- Filing time
- 14 Nov 2025, 16:30:13 UTC
- Date of event
- 30 Sep 2025
- Previous filing
- 15 May 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"Darwin Global Management, Ltd. disclosed 9.7% ownership in INSMED Inc Common Stock, par value $0.01 per share (INSM) on 30 Sep 2025."
What Changed
- Previous schedule filing date: 15 May 2025.
- Current filing was accepted on 14 Nov 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
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting Managers (3)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Darwin Global Management, Ltd. | 9.7% | 20,457,445 | 0 | 20,457,445 | /s/ John Legge | John Legge, Director and Chief Financial Officer | |
| Dr. Abhishek Trehan | 9.7% | 20,457,445 | 0 | 20,457,445 | /s/ Dr. Abhishek Trehan | Dr. Abhishek Trehan, individually | |
| Darwin Global Master Fund, Ltd. | 9.5% | 20,085,806 | 0 | 20,085,806 | /s/ John Legge | By: Darwin Global Management, Ltd, its Investment Manager, By: John Legge, Director and Chief Financial Officer |