INSMED Inc INSM
CIK 0001104506 · CUSIP 457669307
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | JPMORGAN CHASE & CO CIK 19617 · Amended · View history | $3.32B 23,047,676 shares | 0.21% | +7.41M(+47.40%)Added | SEC filing ↗ Nov 26, 2025 | ▾ |
| 02 | Darwin Global Management, Ltd. CIK 1839209 · View history | $2.90B 20,457,445 shares | 80.54% | +1.11M(+5.80%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 03 | VANGUARD GROUP INC CIK 102909 · View history | $2.87B 19,935,820 shares | 0.04% | +2.29M(+13.00%)Added | SEC filing ↗ Nov 7, 2025 | ▾ |
| 04 | BlackRock, Inc. CIK 2012383 · View history | $1.78B 12,364,904 shares | 0.03% | +1.22M(+11.00%)Added | SEC filing ↗ Nov 12, 2025 | ▾ |
| 05 | FMR LLC CIK 315066 · View history | $1.32B 9,180,963 shares | 0.07% | +4.09M(+80.30%)Added | SEC filing ↗ Nov 13, 2025 | ▾ |
| 06 | Capital International Investors CIK 1562230 · View history | $1.09B 7,553,853 shares | 0.18% | +74.99K(+1.00%)Added | SEC filing ↗ Nov 13, 2025 | ▾ |
| 07 | PRICE T ROWE ASSOCIATES INC /MD/ CIK 80255 · View history | $998.20M 6,931,466 shares | 0.11% | -4.30M(-38.30%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 08 | BAKER BROS. ADVISORS LP CIK 1263508 · View history | $965.37M 6,703,484 shares | 6.98% | -1.01M(-13.10%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 09 | D. E. Shaw & Co., Inc. CIK 1009207 · View history | $814.73M 5,657,464 shares | 0.66% | +2.23M(+65.30%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 10 | Artisan Partners Limited Partnership CIK 1466153 · View history | $711.08M 4,937,683 shares | 1.02% | +1.62M(+49.00%)Added | SEC filing ↗ Nov 12, 2025 | ▾ |
| 11 | STATE STREET CORP CIK 93751 · View history | $573.79M 3,984,354 shares | 0.02% | -293.53K(-6.90%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 12 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $541.50M 3,759,427 shares | 0.03% | +418.72K(+12.50%)Added | SEC filing ↗ Nov 12, 2025 | ▾ |
| 13 | Orbis Allan Gray Ltd CIK 1663865 · View history | $468.16M 3,250,868 shares | 2.01% | +1.73M(+113.30%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 14 | RTW INVESTMENTS, LP CIK 1493215 · View history | $444.21M 3,084,558 shares | 5.47% | 0(0.00%)Unchanged | SEC filing ↗ Nov 14, 2025 | ▾ |
| 15 | AMERIPRISE FINANCIAL INC CIK 820027 · View history | $391.98M 2,721,879 shares | 0.09% | -236.09K(-8.00%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 16 | Duquesne Family Office LLC CIK 1536411 · View history | $349.00M 2,423,435 shares | 8.88% | +170.00K(+7.50%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 17 | MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history | $336.42M 2,336,112 shares | 0.26% | +214.40K(+10.10%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 18 | FRANKLIN RESOURCES INC CIK 38777 · View history | $308.14M 2,139,725 shares | 0.08% | -210.41K(-9.00%)Reduced | SEC filing ↗ Nov 13, 2025 | ▾ |
| 19 | CITADEL ADVISORS LLC CIK 1423053 · View history | $296.32M 2,057,641 shares | 0.24% | +524.36K(+34.20%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 20 | Invesco Ltd. CIK 914208 · View history | $288.58M 2,003,871 shares | 0.05% | +107.54K(+5.70%)Added | SEC filing ↗ Nov 13, 2025 | ▾ |
Showing 20 / 566 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
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