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 |
|---|---|---|---|---|---|
| Prudential Financial Inc | 10,970 | $1.58M | 0.00% | −144,470−92.9% | Reduced |
| F/M Investments LLC | 11,067 | $1.59M | 0.06% | −12,494−53.0% | Reduced |
| Parallax Volatility Advisers, L.P. | 11,144 | $1.60M | 0.05% | −7,872−41.4% | Reduced |
| Profund Advisors LLC | 11,373 | $1.64M | 0.05% | −8,185−41.8% | Reduced |
| MetLife Investment Management | 11,373 | $1.64M | 0.01% | +784+7.4% | Added |
| Avidity Partners Management LP | 11,600 | $1.67M | 0.38% | −47,400−80.3% | Reduced |
| MYDA Advisors LLC | 12,000 | $1.73M | 0.52% | −20,000−62.5% | Reduced |
| Emerald Mutual Fund Advisers Trust | 12,322 | $1.77M | 0.09% | −13,102−51.5% | Reduced |
| Emerald Advisers, LLC | 12,393 | $1.78M | 0.06% | −871−6.6% | Reduced |
| Engineers Gate Manager LP | 12,468 | $1.80M | 0.02% | +12,468 | New |
| Quantinno Capital Management LP | 12,778 | $1.84M | 0.01% | +8,310+186.0% | Added |
| Boothbay Fund Management, LLC | 12,817 | $1.85M | 0.05% | −39,934−75.7% | Reduced |
| Main Management ETF Advisors, LLC | 13,175 | $1.90M | 0.07% | +13,175 | New |
| Groupama Asset Managment | 13,175 | $1.90M | 0.03% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 13,223 | $1.90M | 0.01% | +12,723+2,544.6% | Added |
| O'Shaughnessy Asset Management, LLC | 13,226 | $1.90M | 0.01% | +1,886+16.6% | Added |
| Dana Investment Advisors, Inc. | 13,375 | $1.93M | 0.06% | −3,723−21.8% | Reduced |
| Granahan Investment Management Inc | 13,402 | $1.93M | 0.08% | −102,515−88.4% | Reduced |
| Sectoral Asset Management Inc | 13,425 | $1.93M | 1.19% | −1,455−9.8% | Reduced |
| OrbiMed Advisors LLC | 13,459 | $1.94M | 0.05% | 00.0% | Unchanged |
| Ikarian Capital, LLC | 13,751 | $1.98M | 0.45% | −150,000−91.6% | Reduced |
| Point72 Hong Kong Ltd | 14,021 | $2.02M | 0.09% | −55,793−79.9% | Reduced |
| Point72 Asia (Singapore) Pte. Ltd. | 14,371 | $2.07M | 0.32% | +8,901+162.7% | Added |
| Amalgamated Bank | 14,533 | $2.09M | 0.01% | +1,560+12.0% | Added |
| EFG Asset Management (North America) Corp. | 14,973 | $2.16M | 0.28% | −48,556−76.4% | Reduced |
| Elo Mutual Pension Insurance Co | 15,086 | $2.17M | 0.04% | +15,086 | New |
| WCM Investment Management, LLC | 15,500 | $2.20M | 0.00% | −138,486−89.9% | Reduced |
| IMC-Chicago, LLC | 15,282 | $2.20M | 0.04% | +15,282 | New |
| CI Private Wealth, LLC | 15,560 | $2.24M | 0.00% | +536+3.6% | Added |
| Next Century Growth Investors LLC | 15,849 | $2.28M | 0.17% | +15,849 | New |
| Oppenheimer Asset Management Inc. | 15,853 | $2.28M | 0.03% | −5,521−25.8% | Reduced |
| Group One Trading, L.P. | 16,535 | $2.38M | 0.07% | +16,535 | New |
| Keybank National Association | 16,716 | $2.41M | 0.01% | +7,257+76.7% | Added |
| Mackenzie Financial Corp | 16,819 | $2.42M | 0.00% | +3,238+23.8% | Added |
| SG Americas Securities, LLC | 17,406 | $2.51M | 0.01% | +13,305+324.4% | Added |
| West Michigan Advisors, LLC | 17,619 | $2.54M | 0.61% | +17,619 | New |
| Public Employees Retirement Association of Colorado | 19,020 | $2.74M | 0.01% | −238−1.2% | Reduced |
| Campbell & CO Investment Adviser LLC | 19,060 | $2.74M | 0.21% | +19,060 | New |
| Tobam | 19,097 | $2.75M | 1.00% | +19,097 | New |
| New York Life Investment Management LLC | 19,177 | $2.76M | 0.02% | +497+2.7% | Added |
| Sanctuary Advisors, LLC | 19,534 | $2.81M | 0.02% | +8,443+76.1% | Added |
| Simplify Asset Management Inc. | 19,664 | $2.83M | 0.06% | +4,128+26.6% | Added |
| Superstring Capital Management LP | 19,786 | $2.85M | 2.81% | +5,215+35.8% | Added |
| Fieldview Capital Management, LLC | 20,229 | $2.91M | 0.48% | +20,229 | New |
| Bellevue Group AG | 20,251 | $2.92M | 0.06% | −61,146−75.1% | Reduced |
| Walleye Trading LLC | 21,085 | $3.04M | 0.05% | +21,085 | New |
| Virginia Retirement Systems Et Al | 21,265 | $3.06M | 0.02% | +3,100+17.1% | Added |
| Cerity Partners LLC | 21,361 | $3.08M | 0.00% | −6,780−24.1% | Reduced |
| Atria Investments LLC | 21,413 | $3.08M | 0.04% | +4,603+27.4% | Added |
| Wolverine Trading, LLC | 22,095 | $3.13M | 0.06% | +7,007+46.4% | Added |
| Oak Ridge Investments LLC | 22,136 | $3.19M | 0.21% | −12,052−35.3% | Reduced |
| Baird Financial Group, Inc. | 22,386 | $3.22M | 0.01% | −3,335−13.0% | Reduced |
| Advisor Group Holdings, Inc. | 22,748 | $3.23M | 0.00% | +13,997+159.9% | Added |
| Atomi Financial Group, Inc. | 23,739 | $3.42M | 0.11% | +644+2.8% | Added |
| Brown Advisory Inc | 26,109 | $3.76M | 0.00% | −553,737−95.5% | Reduced |
| Xponance, Inc. | 26,418 | $3.80M | 0.03% | +1,577+6.3% | Added |
| McRae Capital Management Inc | 27,195 | $3.92M | 0.78% | +27,195 | New |
| Verition Fund Management LLC | 28,152 | $4.05M | 0.02% | −65,218−69.8% | Reduced |
| Quantessence Capital LLC | 28,157 | $4.05M | 1.28% | −47,571−62.8% | Reduced |
| Landscape Capital Management, L.L.C. | 28,194 | $4.06M | 0.26% | +28,194 | New |
| Mariner, LLC | 28,869 | $4.16M | 0.01% | −506−1.7% | Reduced |
| STRS Ohio | 29,454 | $4.24M | 0.02% | +25,187+590.3% | Added |
| Kennedy Capital Management, Inc. | 30,354 | $4.37M | 0.10% | +8,457+38.6% | Added |
| Utah Retirement Systems | 30,729 | $4.43M | 0.04% | +21,293+225.7% | Added |
| Pathstone Holdings, LLC | 31,621 | $4.55M | 0.02% | −7,006−18.1% | Reduced |
| Legato Capital Management LLC | 34,832 | $5.02M | 0.55% | −1,247−3.5% | Reduced |
| Calamos Advisors LLC | 35,215 | $5.07M | 0.02% | +12,263+53.4% | Added |
| Assetmark, Inc | 35,294 | $5.08M | 0.01% | +3,169+9.9% | Added |
| Brinker Capital Investments, LLC | 36,693 | $5.28M | 0.04% | −5,124−12.3% | Reduced |
| Guggenheim Capital LLC | 36,860 | $5.31M | 0.04% | −4,531−10.9% | Reduced |
| China Universal Asset Management Co., Ltd. | 37,051 | $5.34M | 0.44% | +469+1.3% | Added |
| BI Asset Management Fondsmaeglerselskab A/S | 37,424 | $5.39M | 0.05% | −47,678−56.0% | Reduced |
| Balyasny Asset Management LLC | 37,481 | $5.40M | 0.01% | +37,481 | New |
| Quadrature Capital Ltd | 37,735 | $5.43M | 0.06% | −58,968−61.0% | Reduced |
| Bamco Inc | 38,200 | $5.50M | 0.01% | +1,500+4.1% | Added |
| Acuta Capital Partners, LLC | 38,592 | $5.56M | 5.74% | +1,522+4.1% | Added |
| Truist Financial Corp | 39,063 | $5.63M | 0.01% | −7,420−16.0% | Reduced |
| Natixis Advisors, L.P. | 39,450 | $5.68M | 0.01% | +3,991+11.3% | Added |
| KLP Kapitalforvaltning AS | 41,000 | $5.90M | 0.02% | +3,200+8.5% | Added |
| MML Investors Services, LLC | 41,000 | $5.90M | 0.02% | −8,018−16.4% | Reduced |
| Cetera Investment Advisers | 41,171 | $5.93M | 0.01% | +9,709+30.9% | Added |
| Point72 (DIFC) Ltd | 41,785 | $6.02M | 0.42% | +22,205+113.4% | Added |
| Hillsdale Investment Management Inc. | 42,700 | $6.15M | 0.19% | −7,000−14.1% | Reduced |
| StemPoint Capital LP | 43,419 | $6.25M | 1.26% | −18,159−29.5% | Reduced |
| Thornburg Investment Management Inc | 44,048 | $6.34M | 0.08% | −9,200−17.3% | Reduced |
| Polymer Capital Management (HK) LTD | 44,416 | $6.40M | 0.89% | +38,524+653.8% | Added |
| Great West Life Assurance Co | 47,042 | $6.66M | 0.01% | +792+1.7% | Added |
| Teacher Retirement System of Texas | 46,637 | $6.72M | 0.03% | −2,376−4.8% | Reduced |
| Erste Asset Management GmbH | 47,600 | $6.74M | 0.07% | 00.0% | Unchanged |
| EAM Investors, LLC | 47,972 | $6.80M | 0.78% | −11,940−19.9% | Reduced |
| Voleon Capital Management LP | 47,667 | $6.86M | 0.17% | +42,900+899.9% | Added |
| Catalyst Funds Management Pty Ltd | 47,900 | $6.90M | 1.05% | +725+1.5% | Added |
| DekaBank Deutsche Girozentrale | 50,000 | $7.05M | 0.01% | 00.0% | Unchanged |
| HighVista Strategies LLC | 49,949 | $7.19M | 1.76% | +38,354+330.8% | Added |
| Empowered Funds, LLC | 50,000 | $7.20M | 0.07% | +50,000 | New |
| Handelsbanken Fonder AB | 50,181 | $7.23M | 0.02% | +2,100+4.4% | Added |
| Two Sigma Advisers, LP | 51,300 | $7.39M | 0.01% | +33,800+193.1% | Added |
| Picton Mahoney Asset Management | 51,603 | $7.43M | 0.09% | −34,001−39.7% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 51,658 | $7.44M | 0.02% | −174,484−77.2% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 54,200 | $7.81M | 0.02% | +2,733+5.3% | Added |