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INSMED INC (INSM)
Institutional ownership, SEC filings and insider activity
Sector: Healthcare & Pharma · SEC CIK 0001104506 · EDGAR filings · Updated 2026-07-24
INSMED INC (INSM) has reported institutional ownership of 99.8%, with 665 institutional managers holding positions valued at $35.0B per the latest 13F reporting period.
Filings this week (3)
- 2026-07-24 — Insider transaction reported (Form 4)
- 2026-07-23 — Notice of proposed sale filed (Form 144)
- 2026-07-22 — SCHEDULE 13G/A filed
Every filing links to the official SEC document. Real-time filing alerts for this company are available inside the app.
Latest updates
- 2026-07-16 — Current report (8-K) filed
- 2026-07-10 — Insider transaction reported (Form 4)
- 2026-07-09 — Notice of proposed sale filed (Form 144)
- 2026-07-08 — Insider transaction reported (Form 4)
- 2026-07-06 — Notice of proposed sale filed (Form 144)
- 2026-06-26 — Insider transaction reported (Form 4)
- 2026-06-25 — Notice of proposed sale filed (Form 144)
- 2026-06-24 — Insider transaction reported (Form 4)
Institutional ownership overview
According to SEC 13F filings tracked by Sightfile, INSMED INC has 665 institutional holders and institutional ownership of 99.8%.
| # | Institution | Reported value | % of tracked total |
|---|---|---|---|
| 1 | JPMORGAN CHASE & CO | $3.70B | 10.6% |
| 2 | BlackRock, Inc. | $2.73B | 7.8% |
| 3 | Darwin Global Management, Ltd. | $2.58B | 7.4% |
| 4 | FMR LLC | $2.15B | 6.2% |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | $1.70B | 4.9% |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | $1.58B | 4.5% |
| 7 | BAKER BROS. ADVISORS LP | $1.21B | 3.5% |
| 8 | Artisan Partners Limited Partnership | $1.07B | 3.1% |
| 9 | D. E. Shaw & Co., Inc. | $919.9M | 2.6% |
| 10 | Capital International Investors | $914.9M | 2.6% |
Full holder history and quarter-over-quarter changes are available inside the app.
Insider activity
Insiders reported 343 transactions (2 buys, 228 sells) across 13 reporting insiders, with a net reported value of −$209.6M.
Quarterly net insider value, as reported in Form 4 filings.
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See full history, cross-references and alerts on SightfileData sources: SEC EDGAR (filings, 13F, FTD), aggregated by Sightfile. Page updated 2026-07-24.