INSMED Inc
INSM- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001104506
In the last 90 days, INSMED Inc insiders filed 0 open-market purchases and 7 sales; 667 institutions reported holding it in 13F filings for Q2 2026, worth $23.8B in total; superinvestors Maverick Capital and Duquesne Family Office hold it.
13F holders, Q1 2025
Institutional positions in INSMED Inc as of Mar 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 442
- +9 vs. Q4 2024
- Shares held
- 199.6M
- +8.34M (+4.4%) vs. Q4 2024
- Total value
- $15.3B
- +$2.05B (+15.5%) vs. Q4 2024
- New holders
- 57
- 184 more added
- Sold out
- 48
- 150 more reduced
6 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting INSM on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 667 | $23.8B |
| Q1 2026 | 675 | $35.7B |
| Q4 2025 | 678 | $37.8B |
| Q3 2025 | 566 | $30.3B |
| Q2 2025 | 516 | $21.2B |
| Q1 2025 | 442 | $15.3B |
| Q4 2024 | 439 | $13.3B |
| Q3 2024 | 414 | $13.7B |
| Q2 2024 | 378 | $11.7B |
| Q1 2024 | 288 | $4.07B |
| Q4 2023 | 271 | $4.64B |
| Q3 2023 | 252 | $3.72B |
| Q2 2023 | 223 | $3.09B |
| Q1 2023 | 230 | $2.48B |
| Q4 2022 | 225 | $2.87B |
| Q3 2022 | 238 | $2.74B |
| Q2 2022 | 214 | $2.55B |
| Q1 2022 | 224 | $2.97B |
| Q4 2021 | 214 | $3.36B |
| Q3 2021 | 193 | $3.40B |
| Q2 2021 | 203 | $3.46B |
| Q1 2021 | 199 | $3.63B |
Institutions, Q1 2025
Shares, value and share of portfolio for each institution holding INSMED Inc; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Soros Fund Management LLCSuperinvestorSoros Fund Management | 307,211 | $23.4M | 0.42% | −147,878−32.5% | Reduced |
| Panagora Asset Management Inc | 306,717 | $23.4M | 0.12% | −10,445−3.3% | Reduced |
| Sofinnova Investments, Inc. | 304,254 | $23.2M | 1.75% | +47,973+18.7% | Added |
| Rhumbline Advisers | 303,557 | $23.2M | 0.02% | +15,220+5.3% | Added |
| Russell Investments Group, Ltd. | 302,996 | $23.1M | 0.03% | +170,842+129.3% | Added |
| Comerica Bank | 290,275 | $22.1M | 0.09% | +119,495+70.0% | Added |
| Barclays PLC | 279,270 | $21.3M | 0.01% | −75,166−21.2% | Reduced |
| Citigroup Inc | 277,549 | $21.2M | 0.02% | +30,106+12.2% | Added |
| Soleus Capital Management, L.P. | 274,272 | $20.9M | 1.64% | −46,000−14.4% | Reduced |
| California Public Employees Retirement System | 265,477 | $20.3M | 0.01% | +9,122+3.6% | Added |
| B Group, Inc. | 262,500 | $20.0M | 17.40% | −87,500−25.0% | Reduced |
| Deep Track Capital, LP | 254,751 | $19.4M | 0.63% | +254,751 | New |
| Woodline Partners LP | 248,770 | $19.0M | 0.12% | +86,540+53.3% | Added |
| Royal Bank of Canada | 245,262 | $18.7M | 0.00% | +61,190+33.2% | Added |
| Nicholas Investment Partners, LP | 223,931 | $17.1M | 1.76% | +41,188+22.5% | Added |
| Kingdon Capital Management, L.L.C. | 215,000 | $16.4M | 3.40% | −10,000−4.4% | Reduced |
| Wells Fargo & Company | 205,511 | $15.7M | 0.00% | +44,802+27.9% | Added |
| AXA S.A. | 203,857 | $15.6M | 0.05% | −22,964−10.1% | Reduced |
| Ra Capital Management, L.P. | 200,000 | $15.3M | 0.25% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 192,643 | $14.7M | 0.03% | −43,193−18.3% | Reduced |
| Granahan Investment Management Inc | 187,802 | $14.3M | 0.71% | −21,552−10.3% | Reduced |
| Cutter Capital Management, LP | 186,384 | $14.2M | 6.19% | −24,500−11.6% | Reduced |
| Rhenman & Partners Asset Management AB | 185,500 | $14.2M | 1.63% | +124,000+201.6% | Added |
| Peregrine Capital Management LLC | 180,993 | $13.8M | 0.46% | −12,486−6.5% | Reduced |
| Legal & General Group Plc | 180,202 | $13.7M | 0.00% | +4,188+2.4% | Added |
| Neuberger Berman Group LLC | 176,633 | $13.5M | 0.01% | +27,392+18.4% | Added |
| Segall Bryant & Hamill, LLC | 170,859 | $13.0M | 0.20% | +31,814+22.9% | Added |
| California State Teachers Retirement System | 157,698 | $12.0M | 0.01% | +4,355+2.8% | Added |
| Two Sigma Advisers, LP | 157,200 | $12.0M | 0.03% | −169,300−51.9% | Reduced |
| Prudential Financial Inc | 155,177 | $11.8M | 0.02% | +8,455+5.8% | Added |
| Bellevue Group AG | 150,550 | $11.5M | 0.26% | −107,933−41.8% | Reduced |
| WCM Investment Management, LLC | 144,379 | $11.3M | 0.03% | −361−0.2% | Reduced |
| Rafferty Asset Management, LLC | 145,984 | $11.1M | 0.05% | −34,929−19.3% | Reduced |
| Affinity Asset Advisors, LLC | 140,000 | $10.7M | 1.67% | +90,000+180.0% | Added |
| Readystate Asset Management LP | 134,569 | $10.3M | 0.52% | +108,379+413.8% | Added |
| Susquehanna Fundamental Investments, LLC | 132,925 | $10.1M | 0.17% | −138,035−50.9% | Reduced |
| Schroder Investment Management Group | 127,495 | $9.94M | 0.01% | −140,568−52.4% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 129,187 | $9.86M | 0.02% | +30,727+31.2% | Added |
| State of Wisconsin Investment Board | 125,975 | $9.61M | 0.02% | +3,864+3.2% | Added |
| Jane Street Group, LLC | 124,587 | $9.50M | 0.02% | −139,134−52.8% | Reduced |
| Van Eck Associates Corp | 123,552 | $9.43M | 0.01% | +4,318+3.6% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 109,489 | $8.36M | 0.02% | +4,176+4.0% | Added |
| Avidity Partners Management LP | 107,000 | $8.16M | 1.68% | −125,800−54.0% | Reduced |
| Acuta Capital Partners, LLC | 106,074 | $8.09M | 9.38% | +1,274+1.2% | Added |
| Intech Investment Management LLC | 101,979 | $7.78M | 0.08% | +30,752+43.2% | Added |
| Tri Locum Partners LP | 101,859 | $7.77M | 3.99% | +101,859 | New |
| MetLife Investment Management | 100,210 | $7.65M | 0.04% | −3,219−3.1% | Reduced |
| Tang Capital Management LLC | 100,000 | $7.63M | 0.42% | 00.0% | Unchanged |
| Atika Capital Management LLC | 96,000 | $7.32M | 1.12% | +96,000 | New |
| EFG Asset Management (North America) Corp. | 94,225 | $7.18M | 1.19% | −13,400−12.5% | Reduced |
| Royce & Associates LP | 90,027 | $6.87M | 0.07% | 00.0% | Unchanged |
| Moody Aldrich Partners LLC | 89,020 | $6.79M | 1.42% | +53,542+150.9% | Added |
| Rice Hall James & Associates, LLC | 88,041 | $6.72M | 0.39% | −819−0.9% | Reduced |
| ExodusPoint Capital Management, LP | 87,783 | $6.70M | 0.09% | +87,783 | New |
| StemPoint Capital LP | 87,059 | $6.64M | 2.12% | −19,551−18.3% | Reduced |
| Ally Bridge Group (NY) LLC | 85,110 | $6.49M | 5.85% | −29,250−25.6% | Reduced |
| Ikarian Capital, LLC | 84,800 | $6.47M | 2.11% | −35,000−29.2% | Reduced |
| Corebridge Financial, Inc. | 84,466 | $6.44M | 0.04% | −1,253−1.5% | Reduced |
| Axiom Investors LLC | 79,925 | $6.10M | 0.06% | −3,949−4.7% | Reduced |
| Mutual of America Capital Management LLC | 79,141 | $6.04M | 0.07% | +2,093+2.7% | Added |
| Allianz Asset Management GmbH | 75,284 | $5.74M | 0.01% | +3,534+4.9% | Added |
| Aquatic Capital Management LLC | 73,614 | $5.62M | 0.14% | −17,654−19.3% | Reduced |
| Harbor Capital Advisors, Inc. | 72,816 | $5.55M | 0.25% | +13,216+22.2% | Added |
| Creative Planning | 71,744 | $5.47M | 0.01% | +15,034+26.5% | Added |
| EAM Investors, LLC | 71,670 | $5.47M | 0.95% | −294−0.4% | Reduced |
| Thornburg Investment Management Inc | 68,840 | $5.25M | 0.07% | −5,909−7.9% | Reduced |
| First Light Asset Management, LLC | 68,153 | $5.20M | 0.59% | −402,039−85.5% | Reduced |
| Essex Investment Management Co LLC | 66,800 | $5.10M | 1.06% | −530−0.8% | Reduced |
| EAM Global Investors LLC | 61,508 | $4.69M | 1.28% | +190.0% | Added |
| Bamco Inc | 60,000 | $4.58M | 0.01% | 00.0% | Unchanged |
| State of New Jersey Common Pension Fund D | 59,070 | $4.51M | 0.02% | −4,991−7.8% | Reduced |
| Castleark Management LLC | 53,860 | $4.11M | 0.14% | +1,080+2.0% | Added |
| Nwam LLC | 53,789 | $4.10M | 0.35% | +17,693+49.0% | Added |
| Hillsdale Investment Management Inc. | 51,900 | $3.96M | 0.20% | −5,100−8.9% | Reduced |
| AQR Capital Management LLC | 51,239 | $3.91M | 0.00% | −12,932−20.2% | Reduced |
| LPL Financial LLC | 51,213 | $3.91M | 0.00% | +18,456+56.3% | Added |
| DekaBank Deutsche Girozentrale | 50,000 | $3.86M | 0.01% | 00.0% | Unchanged |
| Picton Mahoney Asset Management | 49,784 | $3.80M | 0.13% | +887+1.8% | Added |
| Handelsbanken Fonder AB | 49,181 | $3.75M | 0.02% | +3,900+8.6% | Added |
| Arizona State Retirement System | 48,678 | $3.71M | 0.02% | +1,336+2.8% | Added |
| Erste Asset Management GmbH | 47,600 | $3.71M | 0.05% | 00.0% | Unchanged |
| Teacher Retirement System of Texas | 45,683 | $3.49M | 0.01% | −2,654−5.5% | Reduced |
| Pathstone Holdings, LLC | 45,533 | $3.47M | 0.02% | +8,388+22.6% | Added |
| ProShare Advisors LLC | 45,489 | $3.47M | 0.01% | −11,502−20.2% | Reduced |
| Truist Financial Corp | 45,074 | $3.44M | 0.01% | +15,036+50.1% | Added |
| Algert Global LLC | 44,424 | $3.39M | 0.08% | −31,330−41.4% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 43,574 | $3.32M | 0.01% | +98+0.2% | Added |
| Great West Life Assurance Co | 42,458 | $3.25M | 0.01% | +3,079+7.8% | Added |
| Oak Ridge Investments LLC | 41,945 | $3.20M | 0.27% | −14,691−25.9% | Reduced |
| Legato Capital Management LLC | 41,857 | $3.19M | 0.43% | +4,986+13.5% | Added |
| Hudson Bay Capital Management LP | 40,170 | $3.06M | 0.02% | −169,830−80.9% | Reduced |
| Parallax Volatility Advisers, L.P. | 39,913 | $3.04M | 0.10% | −30,624−43.4% | Reduced |
| Assenagon Asset Management S.A. | 39,778 | $3.03M | 0.01% | −485,415−92.4% | Reduced |
| Calamos Advisors LLC | 39,301 | $3.00M | 0.01% | +25,925+193.8% | Added |
| Brinker Capital Investments, LLC | 38,735 | $2.96M | 0.03% | +10,973+39.5% | Added |
| Orion Portfolio Solutions, LLC | 38,735 | $2.96M | 0.03% | +10,973+39.5% | Added |
| CIBC World Markets Corp | 38,258 | $2.92M | 0.02% | +22,123+137.1% | Added |
| Parkman Healthcare Partners LLC | 37,901 | $2.89M | 0.34% | +2,233+6.3% | Added |
| State Board of Administration of Florida Retirement System | 37,632 | $2.87M | 0.01% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 37,100 | $2.83M | 0.03% | +362+1.0% | Added |