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, Q2 2025
Institutional positions in INSMED Inc as of Jun 30, 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
- 516
- +78 vs. Q1 2025
- Shares held
- 210.4M
- +10.8M (+5.4%) vs. Q1 2025
- Total value
- $21.2B
- +$5.90B (+38.7%) vs. Q1 2025
- New holders
- 130
- 166 more added
- Sold out
- 52
- 188 more reduced
4 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2025: 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, Q2 2025
Shares, value and share of portfolio for each institution holding INSMED Inc; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Acuta Capital Partners, LLC | 37,070 | $3.73M | 5.21% | −69,004−65.1% | Reduced |
| KLP Kapitalforvaltning AS | 37,800 | $3.80M | 0.02% | +3,600+10.5% | Added |
| Pathstone Holdings, LLC | 38,627 | $3.89M | 0.02% | −6,906−15.2% | Reduced |
| Monashee Investment Management LLC | 40,000 | $4.03M | 2.12% | +40,000 | New |
| Guggenheim Capital LLC | 41,391 | $4.17M | 0.03% | +5,945+16.8% | Added |
| Brinker Capital Investments, LLC | 41,817 | $4.21M | 0.04% | +3,082+8.0% | Added |
| Tower Research Capital LLC (TRC) | 45,235 | $4.55M | 0.12% | +37,820+510.0% | Added |
| Great West Life Assurance Co | 46,250 | $4.66M | 0.01% | +3,792+8.9% | Added |
| Truist Financial Corp | 46,483 | $4.68M | 0.01% | +1,409+3.1% | Added |
| Harbor Capital Advisors, Inc. | 46,786 | $4.71M | 0.20% | −26,030−35.7% | Reduced |
| Erste Asset Management GmbH | 47,600 | $4.74M | 0.04% | 00.0% | Unchanged |
| Catalyst Funds Management Pty Ltd | 47,175 | $4.75M | 1.31% | +47,175 | New |
| First Trust Advisors LP | 47,392 | $4.77M | 0.00% | +21,176+80.8% | Added |
| Ally Bridge Group (NY) LLC | 47,710 | $4.80M | 4.00% | −37,400−43.9% | Reduced |
| Handelsbanken Fonder AB | 48,081 | $4.84M | 0.02% | −1,100−2.2% | Reduced |
| Teacher Retirement System of Texas | 49,013 | $4.93M | 0.02% | +3,330+7.3% | Added |
| MML Investors Services, LLC | 49,018 | $4.93M | 0.01% | +17,809+57.1% | Added |
| DekaBank Deutsche Girozentrale | 50,000 | $4.96M | 0.01% | 00.0% | Unchanged |
| Hillsdale Investment Management Inc. | 49,700 | $5.00M | 0.18% | −2,200−4.2% | Reduced |
| AQR Capital Management LLC | 49,715 | $5.00M | 0.00% | −1,524−3.0% | Reduced |
| EAM Global Investors LLC | 50,206 | $5.05M | 1.31% | −11,302−18.4% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 51,467 | $5.18M | 0.01% | +7,893+18.1% | Added |
| Boothbay Fund Management, LLC | 52,751 | $5.31M | 0.17% | +28,336+116.1% | Added |
| Arizona State Retirement System | 53,033 | $5.34M | 0.03% | +4,355+8.9% | Added |
| Nwam LLC | 49,860 | $5.35M | 0.31% | −3,929−7.3% | Reduced |
| Thornburg Investment Management Inc | 53,248 | $5.36M | 0.07% | −15,592−22.6% | Reduced |
| Stifel Financial Corp | 54,002 | $5.43M | 0.01% | +18,765+53.3% | Added |
| Virtu Financial LLC | 54,302 | $5.46M | 0.28% | +54,302 | New |
| Public Employees Retirement System of Ohio | 55,425 | $5.58M | 0.02% | +55,425 | New |
| XTX Topco Ltd | 56,380 | $5.67M | 0.24% | +35,130+165.3% | Added |
| Avidity Partners Management LP | 59,000 | $5.94M | 1.19% | −48,000−44.9% | Reduced |
| EAM Investors, LLC | 59,912 | $6.03M | 0.91% | −11,758−16.4% | Reduced |
| Axiom Investors LLC | 60,741 | $6.11M | 0.05% | −19,184−24.0% | Reduced |
| StemPoint Capital LP | 61,578 | $6.20M | 2.00% | −25,481−29.3% | Reduced |
| First Light Asset Management, LLC | 62,901 | $6.33M | 0.82% | −5,252−7.7% | Reduced |
| EFG Asset Management (North America) Corp. | 63,529 | $6.39M | 0.90% | −30,696−32.6% | Reduced |
| State of New Jersey Common Pension Fund D | 64,097 | $6.45M | 0.03% | +5,027+8.5% | Added |
| Essex Investment Management Co LLC | 66,345 | $6.68M | 1.21% | −455−0.7% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 67,903 | $6.83M | 0.06% | +30,803+83.0% | Added |
| LMR Partners LLP | 69,000 | $6.94M | 0.11% | +32,072+86.9% | Added |
| Point72 Hong Kong Ltd | 69,814 | $7.03M | 0.49% | +69,814 | New |
| Iron Triangle Partners LP | 70,000 | $7.04M | 1.11% | +70,000 | New |
| LPL Financial LLC | 71,412 | $7.19M | 0.00% | +20,199+39.4% | Added |
| Creative Planning | 72,176 | $7.26M | 0.01% | +432+0.6% | Added |
| Soleus Capital Management, L.P. | 72,772 | $7.32M | 0.51% | −201,500−73.5% | Reduced |
| Assenagon Asset Management S.A. | 73,404 | $7.39M | 0.01% | +33,626+84.5% | Added |
| Trexquant Investment LP | 75,265 | $7.57M | 0.09% | +75,265 | New |
| Quantessence Capital LLC | 75,728 | $7.62M | 2.24% | +75,728 | New |
| Allianz Asset Management GmbH | 80,422 | $8.09M | 0.01% | +5,138+6.8% | Added |
| Bellevue Group AG | 81,397 | $8.19M | 0.18% | −69,153−45.9% | Reduced |
| Hudson Bay Capital Management LP | 81,743 | $8.23M | 0.05% | +41,573+103.5% | Added |
| Algert Global LLC | 81,924 | $8.24M | 0.17% | +37,500+84.4% | Added |
| Treasurer of the State of North Carolina | 83,390 | $8.39M | 0.03% | +83,390 | New |
| Schonfeld Strategic Advisors LLC | 83,439 | $8.40M | 0.06% | +67,218+414.4% | Added |
| BI Asset Management Fondsmaeglerselskab A/S | 85,102 | $8.56M | 0.08% | +83,644+5,736.9% | Added |
| Picton Mahoney Asset Management | 85,604 | $8.62M | 0.12% | +35,820+72.0% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 86,393 | $8.69M | 0.02% | −42,794−33.1% | Reduced |
| Mutual of America Capital Management LLC | 86,492 | $8.70M | 0.09% | +7,351+9.3% | Added |
| Citigroup Inc | 86,648 | $8.72M | 0.01% | −190,901−68.8% | Reduced |
| Rice Hall James & Associates, LLC | 86,770 | $8.73M | 0.47% | −1,271−1.4% | Reduced |
| Canada Pension Plan Investment Board | 87,600 | $8.82M | 0.01% | +87,600 | New |
| Schroder Investment Management Group | 87,615 | $8.82M | 0.01% | −39,880−31.3% | Reduced |
| Walleye Capital LLC | 88,406 | $8.90M | 0.08% | +53,928+156.4% | Added |
| Peregrine Capital Management LLC | 88,695 | $8.93M | 0.27% | −92,298−51.0% | Reduced |
| Royce & Associates LP | 90,027 | $9.06M | 0.09% | 00.0% | Unchanged |
| Polar Asset Management Partners Inc. | 92,300 | $9.29M | 0.23% | +92,300 | New |
| ExodusPoint Capital Management, LP | 92,717 | $9.33M | 0.11% | +4,934+5.6% | Added |
| Verition Fund Management LLC | 93,370 | $9.40M | 0.05% | +66,896+252.7% | Added |
| Readystate Asset Management LP | 94,052 | $9.47M | 0.39% | −40,517−30.1% | Reduced |
| Quadrature Capital Ltd | 96,703 | $9.73M | 0.17% | +89,217+1,191.8% | Added |
| Rafferty Asset Management, LLC | 98,110 | $9.87M | 0.03% | −47,874−32.8% | Reduced |
| Driehaus Capital Management LLC | 108,081 | $10.9M | 0.09% | −223,378−67.4% | Reduced |
| Federated Hermes, Inc. | 108,385 | $10.9M | 0.02% | −84,258−43.7% | Reduced |
| Granahan Investment Management Inc | 115,917 | $11.7M | 0.47% | −71,885−38.3% | Reduced |
| State of Wisconsin Investment Board | 117,961 | $11.9M | 0.03% | −8,014−6.4% | Reduced |
| Segall Bryant & Hamill, LLC | 119,136 | $12.0M | 0.17% | −51,723−30.3% | Reduced |
| Van Eck Associates Corp | 119,786 | $12.1M | 0.01% | −3,766−3.0% | Reduced |
| Jain Global LLC | 127,161 | $12.8M | 0.20% | +127,161 | New |
| State Board of Administration of Florida Retirement System | 130,165 | $13.1M | 0.02% | +92,533+245.9% | Added |
| Tudor Investment Corp Et Al | 134,010 | $13.5M | 0.10% | +134,010 | New |
| Frontier Capital Management Co LLC | 147,801 | $14.9M | 0.14% | −409,786−73.5% | Reduced |
| Panagora Asset Management Inc | 149,591 | $15.1M | 0.07% | −157,126−51.2% | Reduced |
| WCM Investment Management, LLC | 153,986 | $15.3M | 0.03% | +9,607+6.7% | Added |
| B Group, Inc. | 155,000 | $15.6M | 13.47% | −107,500−41.0% | Reduced |
| Prudential Financial Inc | 155,440 | $15.6M | 0.02% | +263+0.2% | Added |
| Ikarian Capital, LLC | 163,751 | $16.5M | 5.45% | +78,951+93.1% | Added |
| California State Teachers Retirement System | 173,529 | $17.5M | 0.02% | +15,831+10.0% | Added |
| Rhenman & Partners Asset Management AB | 175,435 | $17.7M | 2.23% | −10,065−5.4% | Reduced |
| Jump Financial, LLC | 181,554 | $18.3M | 0.22% | +181,554 | New |
| Victory Capital Management Inc | 182,773 | $18.4M | 0.01% | −226,341−55.3% | Reduced |
| Barclays PLC | 188,864 | $19.0M | 0.01% | −90,406−32.4% | Reduced |
| Fred Alger Management, LLC | 189,719 | $19.1M | 0.09% | −188,612−49.9% | Reduced |
| American Century Companies Inc | 190,064 | $19.1M | 0.01% | −682,059−78.2% | Reduced |
| Nicholas Investment Partners, LP | 195,394 | $19.7M | 1.75% | −28,537−12.7% | Reduced |
| Aquatic Capital Management LLC | 199,934 | $20.1M | 0.41% | +126,320+171.6% | Added |
| Tang Capital Management LLC | 200,000 | $20.1M | 1.02% | +100,000+100.0% | Added |
| Deutsche Bank AG | 201,635 | $20.3M | 0.01% | −108,983−35.1% | Reduced |
| Brevan Howard Capital Management LP | 202,594 | $20.4M | 0.22% | +202,594 | New |
| Susquehanna Portfolio Strategies, LLC | 207,527 | $20.9M | 0.46% | +207,527 | New |
| Legal & General Group Plc | 207,851 | $20.9M | 0.01% | +27,649+15.3% | Added |