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 |
|---|---|---|---|---|---|
| Allspring Global Investments Holdings, LLC | 227,629 | $33.5M | 0.05% | −76,681−25.2% | Reduced |
| Voya Investment Management LLC | 219,839 | $31.7M | 0.03% | −187,840−46.1% | Reduced |
| Suvretta Capital Management, LLC | 217,783 | $31.4M | 0.95% | −21,000−8.8% | Reduced |
| Rhumbline Advisers | 212,903 | $30.7M | 0.02% | +4,558+2.2% | Added |
| Legal & General Group Plc | 208,021 | $30.0M | 0.01% | +170+0.1% | Added |
| Susquehanna Portfolio Strategies, LLC | 207,527 | $29.9M | 0.47% | 00.0% | Unchanged |
| Silverarc Capital Management, LLC | 206,648 | $29.8M | 4.31% | −42,412−17.0% | Reduced |
| Deutsche Bank AG | 204,354 | $29.4M | 0.01% | +2,719+1.3% | Added |
| 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 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 198,702 | $28.6M | 0.07% | −103,363−34.2% | Reduced |
| C WorldWide Group Holding A/S | 196,110 | $28.2M | 0.44% | −75,000−27.7% | Reduced |
| Manufacturers Life Insurance Company, The | 193,830 | $27.9M | 0.02% | −32,435−14.3% | Reduced |
| Nicholas Investment Partners, LP | 180,451 | $26.0M | 1.99% | −14,943−7.6% | Reduced |
| California State Teachers Retirement System | 179,402 | $25.8M | 0.03% | +5,873+3.4% | Added |
| Russell Investments Group, Ltd. | 166,459 | $24.0M | 0.03% | −68,158−29.1% | Reduced |
| Caisse de Depot Et Placement du Quebec | 164,400 | $23.7M | 0.04% | +164,400 | New |
| Comerica Bank | 161,804 | $23.3M | 0.09% | −70,595−30.4% | Reduced |
| AXA Investment Managers S.A. | 156,431 | $22.5M | 0.06% | +156,431 | New |
| Neuberger Berman Group LLC | 150,106 | $21.6M | 0.02% | +139,211+1,277.8% | Added |
| Algert Global LLC | 144,726 | $20.8M | 0.35% | +62,802+76.7% | Added |
| State Board of Administration of Florida Retirement System | 135,020 | $19.4M | 0.03% | +4,855+3.7% | Added |
| State of Wisconsin Investment Board | 133,365 | $19.2M | 0.04% | +15,404+13.1% | Added |
| Rhenman & Partners Asset Management AB | 131,885 | $19.0M | 2.10% | −43,550−24.8% | Reduced |
| Assenagon Asset Management S.A. | 129,245 | $18.6M | 0.03% | +55,841+76.1% | Added |
| Los Angeles Capital Management LLC | 127,503 | $18.4M | 0.06% | −203,297−61.5% | Reduced |
| Woodline Partners LP | 126,262 | $18.2M | 0.09% | −122,659−49.3% | Reduced |
| Barclays PLC | 114,196 | $16.4M | 0.01% | −74,668−39.5% | Reduced |
| Jefferies Financial Group Inc. | 108,097 | $15.6M | 0.14% | +103,114+2,069.3% | Added |
| Axiom Investors LLC | 107,733 | $15.5M | 0.11% | +46,992+77.4% | Added |
| LPL Financial LLC | 106,938 | $15.4M | 0.00% | +35,526+49.7% | Added |
| Van Eck Associates Corp | 106,702 | $15.4M | 0.01% | −13,084−10.9% | Reduced |
| Sofinnova Investments, Inc. | 104,339 | $15.0M | 0.92% | −209,584−66.8% | Reduced |
| Driehaus Capital Management LLC | 99,301 | $14.3M | 0.10% | −8,780−8.1% | Reduced |
| Atika Capital Management LLC | 95,000 | $13.7M | 1.17% | +95,000 | New |
| Fred Alger Management, LLC | 94,033 | $13.5M | 0.05% | −95,686−50.4% | Reduced |
| LMR Partners LLP | 93,912 | $13.5M | 0.17% | +24,912+36.1% | Added |
| Royce & Associates LP | 92,376 | $13.3M | 0.13% | +2,349+2.6% | Added |
| Bank of Montreal | 91,766 | $13.2M | 0.01% | +62,081+209.1% | Added |
| EULAV Asset Management | 90,000 | $13.0M | 0.30% | +90,000 | New |
| Essex Investment Management Co LLC | 87,077 | $12.5M | 1.92% | +20,732+31.2% | Added |
| Man Group plc | 85,169 | $12.3M | 0.02% | +85,169 | New |
| Treasurer of the State of North Carolina | 83,752 | $12.1M | 0.04% | +362+0.4% | Added |
| Police & Firemen's Retirement System of New Jersey | 82,514 | $11.9M | 0.10% | +14,611+21.5% | Added |
| Citigroup Inc | 80,086 | $11.5M | 0.01% | −6,562−7.6% | Reduced |
| Rice Hall James & Associates, LLC | 79,667 | $11.5M | 0.63% | −7,103−8.2% | Reduced |
| Trexquant Investment LP | 76,753 | $11.1M | 0.11% | +1,488+2.0% | Added |
| American Century Companies Inc | 76,679 | $11.0M | 0.01% | −113,385−59.7% | Reduced |
| Aquatic Capital Management LLC | 76,343 | $11.0M | 0.20% | −123,591−61.8% | Reduced |
| Stifel Financial Corp | 69,860 | $10.1M | 0.01% | +15,858+29.4% | Added |
| Creative Planning | 69,855 | $10.1M | 0.01% | −2,321−3.2% | Reduced |
| Schroder Investment Management Group | 70,921 | $10.0M | 0.01% | −16,694−19.1% | Reduced |
| Mutual of America Capital Management LLC | 69,754 | $10.0M | 0.11% | −16,738−19.4% | Reduced |
| State of New Jersey Common Pension Fund D | 66,324 | $9.55M | 0.04% | +2,227+3.5% | Added |
| Cinctive Capital Management LP | 66,181 | $9.53M | 0.48% | +33,307+101.3% | Added |
| Allianz Asset Management GmbH | 66,083 | $9.52M | 0.01% | −14,339−17.8% | Reduced |
| Canada Pension Plan Investment Board | 62,013 | $8.93M | 0.01% | −25,587−29.2% | Reduced |
| Schonfeld Strategic Advisors LLC | 60,635 | $8.73M | 0.06% | −22,804−27.3% | Reduced |
| Public Employees Retirement System of Ohio | 58,191 | $8.38M | 0.03% | +2,766+5.0% | Added |
| Nwam LLC | 49,538 | $8.32M | 0.45% | −322−0.6% | Reduced |
| Arizona State Retirement System | 56,164 | $8.09M | 0.04% | +3,131+5.9% | Added |
| Jain Global LLC | 55,938 | $8.06M | 0.10% | −71,223−56.0% | Reduced |
| Rafferty Asset Management, LLC | 55,159 | $7.94M | 0.03% | −42,951−43.8% | Reduced |
| Skandinaviska Enskilda Banken AB (publ) | 54,784 | $7.89M | 0.03% | +26,995+97.1% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 54,529 | $7.85M | 0.01% | −31,864−36.9% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 54,200 | $7.81M | 0.02% | +2,733+5.3% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 51,658 | $7.44M | 0.02% | −174,484−77.2% | Reduced |
| Picton Mahoney Asset Management | 51,603 | $7.43M | 0.09% | −34,001−39.7% | Reduced |
| Two Sigma Advisers, LP | 51,300 | $7.39M | 0.01% | +33,800+193.1% | Added |
| Handelsbanken Fonder AB | 50,181 | $7.23M | 0.02% | +2,100+4.4% | Added |
| Empowered Funds, LLC | 50,000 | $7.20M | 0.07% | +50,000 | New |
| HighVista Strategies LLC | 49,949 | $7.19M | 1.76% | +38,354+330.8% | Added |
| DekaBank Deutsche Girozentrale | 50,000 | $7.05M | 0.01% | 00.0% | Unchanged |
| Catalyst Funds Management Pty Ltd | 47,900 | $6.90M | 1.05% | +725+1.5% | Added |
| Voleon Capital Management LP | 47,667 | $6.86M | 0.17% | +42,900+899.9% | Added |
| EAM Investors, LLC | 47,972 | $6.80M | 0.78% | −11,940−19.9% | Reduced |
| Erste Asset Management GmbH | 47,600 | $6.74M | 0.07% | 00.0% | Unchanged |
| Teacher Retirement System of Texas | 46,637 | $6.72M | 0.03% | −2,376−4.8% | Reduced |
| Great West Life Assurance Co | 47,042 | $6.66M | 0.01% | +792+1.7% | Added |
| Polymer Capital Management (HK) LTD | 44,416 | $6.40M | 0.89% | +38,524+653.8% | Added |
| Thornburg Investment Management Inc | 44,048 | $6.34M | 0.08% | −9,200−17.3% | Reduced |
| StemPoint Capital LP | 43,419 | $6.25M | 1.26% | −18,159−29.5% | Reduced |
| Hillsdale Investment Management Inc. | 42,700 | $6.15M | 0.19% | −7,000−14.1% | Reduced |
| Point72 (DIFC) Ltd | 41,785 | $6.02M | 0.42% | +22,205+113.4% | Added |
| Cetera Investment Advisers | 41,171 | $5.93M | 0.01% | +9,709+30.9% | Added |
| MML Investors Services, LLC | 41,000 | $5.90M | 0.02% | −8,018−16.4% | Reduced |
| KLP Kapitalforvaltning AS | 41,000 | $5.90M | 0.02% | +3,200+8.5% | Added |
| Natixis Advisors, L.P. | 39,450 | $5.68M | 0.01% | +3,991+11.3% | Added |
| Truist Financial Corp | 39,063 | $5.63M | 0.01% | −7,420−16.0% | Reduced |
| Acuta Capital Partners, LLC | 38,592 | $5.56M | 5.74% | +1,522+4.1% | Added |
| Bamco Inc | 38,200 | $5.50M | 0.01% | +1,500+4.1% | Added |
| Quadrature Capital Ltd | 37,735 | $5.43M | 0.06% | −58,968−61.0% | Reduced |
| Balyasny Asset Management LLC | 37,481 | $5.40M | 0.01% | +37,481 | New |
| BI Asset Management Fondsmaeglerselskab A/S | 37,424 | $5.39M | 0.05% | −47,678−56.0% | Reduced |
| China Universal Asset Management Co., Ltd. | 37,051 | $5.34M | 0.44% | +469+1.3% | Added |
| Guggenheim Capital LLC | 36,860 | $5.31M | 0.04% | −4,531−10.9% | Reduced |
| Brinker Capital Investments, LLC | 36,693 | $5.28M | 0.04% | −5,124−12.3% | Reduced |
| Assetmark, Inc | 35,294 | $5.08M | 0.01% | +3,169+9.9% | Added |
| Calamos Advisors LLC | 35,215 | $5.07M | 0.02% | +12,263+53.4% | Added |