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, Q3 2025
Institutional positions in INSMED Inc as of Sep 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
- 566
- +59 vs. Q2 2025
- Shares held
- 210.9M
- +2.45M (+1.2%) vs. Q2 2025
- Total value
- $30.3B
- +$9.37B (+44.7%) vs. Q2 2025
- New holders
- 130
- 194 more added
- Sold out
- 71
- 197 more reduced
9 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding INSMED Inc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Universal- Beteiligungs- und Servicegesellschaft mbH | 54,529 | $7.85M | 0.01% | −31,864−36.9% | Reduced |
| Skandinaviska Enskilda Banken AB (publ) | 54,784 | $7.89M | 0.03% | +26,995+97.1% | Added |
| Rafferty Asset Management, LLC | 55,159 | $7.94M | 0.03% | −42,951−43.8% | Reduced |
| Jain Global LLC | 55,938 | $8.06M | 0.10% | −71,223−56.0% | Reduced |
| Arizona State Retirement System | 56,164 | $8.09M | 0.04% | +3,131+5.9% | Added |
| Nwam LLC | 49,538 | $8.32M | 0.45% | −322−0.6% | Reduced |
| Public Employees Retirement System of Ohio | 58,191 | $8.38M | 0.03% | +2,766+5.0% | Added |
| Schonfeld Strategic Advisors LLC | 60,635 | $8.73M | 0.06% | −22,804−27.3% | Reduced |
| Canada Pension Plan Investment Board | 62,013 | $8.93M | 0.01% | −25,587−29.2% | Reduced |
| Allianz Asset Management GmbH | 66,083 | $9.52M | 0.01% | −14,339−17.8% | Reduced |
| Cinctive Capital Management LP | 66,181 | $9.53M | 0.48% | +33,307+101.3% | Added |
| State of New Jersey Common Pension Fund D | 66,324 | $9.55M | 0.04% | +2,227+3.5% | Added |
| Mutual of America Capital Management LLC | 69,754 | $10.0M | 0.11% | −16,738−19.4% | Reduced |
| Schroder Investment Management Group | 70,921 | $10.0M | 0.01% | −16,694−19.1% | Reduced |
| Creative Planning | 69,855 | $10.1M | 0.01% | −2,321−3.2% | Reduced |
| Stifel Financial Corp | 69,860 | $10.1M | 0.01% | +15,858+29.4% | Added |
| Aquatic Capital Management LLC | 76,343 | $11.0M | 0.20% | −123,591−61.8% | Reduced |
| American Century Companies Inc | 76,679 | $11.0M | 0.01% | −113,385−59.7% | Reduced |
| Trexquant Investment LP | 76,753 | $11.1M | 0.11% | +1,488+2.0% | Added |
| Rice Hall James & Associates, LLC | 79,667 | $11.5M | 0.63% | −7,103−8.2% | Reduced |
| Citigroup Inc | 80,086 | $11.5M | 0.01% | −6,562−7.6% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 82,514 | $11.9M | 0.10% | +14,611+21.5% | Added |
| Treasurer of the State of North Carolina | 83,752 | $12.1M | 0.04% | +362+0.4% | Added |
| Man Group plc | 85,169 | $12.3M | 0.02% | +85,169 | New |
| Essex Investment Management Co LLC | 87,077 | $12.5M | 1.92% | +20,732+31.2% | Added |
| EULAV Asset Management | 90,000 | $13.0M | 0.30% | +90,000 | New |
| Bank of Montreal | 91,766 | $13.2M | 0.01% | +62,081+209.1% | Added |
| Royce & Associates LP | 92,376 | $13.3M | 0.13% | +2,349+2.6% | Added |
| LMR Partners LLP | 93,912 | $13.5M | 0.17% | +24,912+36.1% | Added |
| Fred Alger Management, LLC | 94,033 | $13.5M | 0.05% | −95,686−50.4% | Reduced |
| Atika Capital Management LLC | 95,000 | $13.7M | 1.17% | +95,000 | New |
| Driehaus Capital Management LLC | 99,301 | $14.3M | 0.10% | −8,780−8.1% | Reduced |
| Sofinnova Investments, Inc. | 104,339 | $15.0M | 0.92% | −209,584−66.8% | Reduced |
| Van Eck Associates Corp | 106,702 | $15.4M | 0.01% | −13,084−10.9% | Reduced |
| LPL Financial LLC | 106,938 | $15.4M | 0.00% | +35,526+49.7% | Added |
| Axiom Investors LLC | 107,733 | $15.5M | 0.11% | +46,992+77.4% | Added |
| Jefferies Financial Group Inc. | 108,097 | $15.6M | 0.14% | +103,114+2,069.3% | Added |
| Barclays PLC | 114,196 | $16.4M | 0.01% | −74,668−39.5% | Reduced |
| Woodline Partners LP | 126,262 | $18.2M | 0.09% | −122,659−49.3% | Reduced |
| Los Angeles Capital Management LLC | 127,503 | $18.4M | 0.06% | −203,297−61.5% | Reduced |
| Assenagon Asset Management S.A. | 129,245 | $18.6M | 0.03% | +55,841+76.1% | Added |
| Rhenman & Partners Asset Management AB | 131,885 | $19.0M | 2.10% | −43,550−24.8% | Reduced |
| State of Wisconsin Investment Board | 133,365 | $19.2M | 0.04% | +15,404+13.1% | Added |
| State Board of Administration of Florida Retirement System | 135,020 | $19.4M | 0.03% | +4,855+3.7% | Added |
| Algert Global LLC | 144,726 | $20.8M | 0.35% | +62,802+76.7% | Added |
| Neuberger Berman Group LLC | 150,106 | $21.6M | 0.02% | +139,211+1,277.8% | Added |
| AXA Investment Managers S.A. | 156,431 | $22.5M | 0.06% | +156,431 | New |
| Comerica Bank | 161,804 | $23.3M | 0.09% | −70,595−30.4% | Reduced |
| Caisse de Depot Et Placement du Quebec | 164,400 | $23.7M | 0.04% | +164,400 | New |
| Russell Investments Group, Ltd. | 166,459 | $24.0M | 0.03% | −68,158−29.1% | Reduced |
| California State Teachers Retirement System | 179,402 | $25.8M | 0.03% | +5,873+3.4% | Added |
| Nicholas Investment Partners, LP | 180,451 | $26.0M | 1.99% | −14,943−7.6% | Reduced |
| Manufacturers Life Insurance Company, The | 193,830 | $27.9M | 0.02% | −32,435−14.3% | Reduced |
| C WorldWide Group Holding A/S | 196,110 | $28.2M | 0.44% | −75,000−27.7% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 198,702 | $28.6M | 0.07% | −103,363−34.2% | Reduced |
| Novo Holdings A/S | 200,000 | $28.8M | 1.86% | −480,000−70.6% | Reduced |
| Tang Capital Management LLC | 200,000 | $28.8M | 1.11% | 00.0% | Unchanged |
| Nearwater Capital Markets, Ltd | 200,000 | $28.8M | 0.39% | +200,000 | New |
| Deutsche Bank AG | 204,354 | $29.4M | 0.01% | +2,719+1.3% | Added |
| Silverarc Capital Management, LLC | 206,648 | $29.8M | 4.31% | −42,412−17.0% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 207,527 | $29.9M | 0.47% | 00.0% | Unchanged |
| Legal & General Group Plc | 208,021 | $30.0M | 0.01% | +170+0.1% | Added |
| Rhumbline Advisers | 212,903 | $30.7M | 0.02% | +4,558+2.2% | Added |
| Suvretta Capital Management, LLC | 217,783 | $31.4M | 0.95% | −21,000−8.8% | Reduced |
| Voya Investment Management LLC | 219,839 | $31.7M | 0.03% | −187,840−46.1% | Reduced |
| Allspring Global Investments Holdings, LLC | 227,629 | $33.5M | 0.05% | −76,681−25.2% | Reduced |
| Susquehanna International Group, LLP | 233,106 | $33.6M | 0.05% | +20,884+9.8% | Added |
| Standard Life Aberdeen plc | 234,622 | $33.8M | 0.05% | −75,127−24.3% | Reduced |
| First Trust Advisors LP | 240,646 | $34.7M | 0.03% | +193,254+407.8% | Added |
| Eagle Health Investments LP | 271,600 | $39.1M | 10.27% | −157,000−36.6% | Reduced |
| AQR Capital Management LLC | 287,286 | $40.9M | 0.03% | +237,571+477.9% | Added |
| Samlyn Capital, LLC | 292,643 | $42.1M | 0.60% | +292,643 | New |
| Brevan Howard Capital Management LP | 294,047 | $42.3M | 0.61% | +91,453+45.1% | Added |
| California Public Employees Retirement System | 310,886 | $44.8M | 0.03% | +88,650+39.9% | Added |
| First Turn Management, LLC | 319,773 | $46.1M | 6.91% | −52,899−14.2% | Reduced |
| Patient Square Capital LP | 326,400 | $47.0M | 12.57% | −32,400−9.0% | Reduced |
| Federated Hermes, Inc. | 328,223 | $47.3M | 0.08% | +219,838+202.8% | Added |
| Frontier Capital Management Co LLC | 328,884 | $47.4M | 0.42% | +181,083+122.5% | Added |
| Long Focus Capital Management, LLC | 338,000 | $48.7M | 2.78% | −182,200−35.0% | Reduced |
| Envestnet Asset Management Inc | 342,785 | $49.4M | 0.01% | −23,042−6.3% | Reduced |
| Amundi | 317,096 | $50.2M | 0.02% | +305,597+2,657.6% | Added |
| Renaissance Technologies LLC | 352,887 | $50.8M | 0.07% | +44,200+14.3% | Added |
| Victory Capital Management Inc | 354,907 | $51.1M | 0.03% | +172,134+94.2% | Added |
| Swiss National Bank | 371,300 | $53.5M | 0.03% | +23,900+6.9% | Added |
| Polar Capital Holdings Plc | 371,887 | $53.6M | 0.26% | −326,073−46.7% | Reduced |
| ING Groep NV | 373,500 | $53.8M | 0.29% | +373,500 | New |
| Rock Springs Capital Management LP | 385,000 | $55.4M | 3.24% | −140,000−26.7% | Reduced |
| Dimensional Fund Advisors LP | 386,671 | $55.7M | 0.01% | −25,073−6.1% | Reduced |
| Candriam Luxembourg S.C.A. | 397,588 | $57.3M | 0.30% | −41,100−9.4% | Reduced |
| TD Asset Management Inc | 398,256 | $57.4M | 0.05% | +3,062+0.8% | Added |
| TimesSquare Capital Management, LLC | 425,085 | $61.2M | 0.88% | −448,406−51.3% | Reduced |
| Cormorant Asset Management, LP | 430,000 | $61.9M | 4.27% | −110,000−20.4% | Reduced |
| BNP Paribas Arbitrage, SA | 433,340 | $62.4M | 0.05% | −320,820−42.5% | Reduced |
| New York State Common Retirement Fund | 445,876 | $64.2M | 0.08% | +18,123+4.2% | Added |
| Affinity Asset Advisors, LLC | 450,000 | $64.8M | 6.03% | −25,000−5.3% | Reduced |
| Point72 Asset Management, L.P. | 464,217 | $66.9M | 0.15% | −26,450−5.4% | Reduced |
| Deerfield Management Company, L.P. (Series C) | 471,000 | $67.8M | 1.04% | −229,700−32.8% | Reduced |
| Voloridge Investment Management, LLC | 471,649 | $67.9M | 0.23% | +158,596+50.7% | Added |
| Westfield Capital Management Co LP | 487,927 | $70.3M | 0.29% | −851,361−63.6% | Reduced |
| Palo Alto Investors LP | 491,805 | $70.8M | 13.11% | −373,308−43.2% | Reduced |