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 |
|---|---|---|---|---|---|
| Legato Capital Management LLC | 34,832 | $5.02M | 0.55% | −1,247−3.5% | Reduced |
| Pathstone Holdings, LLC | 31,621 | $4.55M | 0.02% | −7,006−18.1% | Reduced |
| Utah Retirement Systems | 30,729 | $4.43M | 0.04% | +21,293+225.7% | Added |
| Kennedy Capital Management, Inc. | 30,354 | $4.37M | 0.10% | +8,457+38.6% | Added |
| STRS Ohio | 29,454 | $4.24M | 0.02% | +25,187+590.3% | Added |
| Mariner, LLC | 28,869 | $4.16M | 0.01% | −506−1.7% | Reduced |
| Landscape Capital Management, L.L.C. | 28,194 | $4.06M | 0.26% | +28,194 | New |
| Quantessence Capital LLC | 28,157 | $4.05M | 1.28% | −47,571−62.8% | Reduced |
| Verition Fund Management LLC | 28,152 | $4.05M | 0.02% | −65,218−69.8% | Reduced |
| McRae Capital Management Inc | 27,195 | $3.92M | 0.78% | +27,195 | New |
| Xponance, Inc. | 26,418 | $3.80M | 0.03% | +1,577+6.3% | Added |
| Brown Advisory Inc | 26,109 | $3.76M | 0.00% | −553,737−95.5% | Reduced |
| Atomi Financial Group, Inc. | 23,739 | $3.42M | 0.11% | +644+2.8% | Added |
| Advisor Group Holdings, Inc. | 22,748 | $3.23M | 0.00% | +13,997+159.9% | Added |
| Baird Financial Group, Inc. | 22,386 | $3.22M | 0.01% | −3,335−13.0% | Reduced |
| Oak Ridge Investments LLC | 22,136 | $3.19M | 0.21% | −12,052−35.3% | Reduced |
| Wolverine Trading, LLC | 22,095 | $3.13M | 0.06% | +7,007+46.4% | Added |
| Atria Investments LLC | 21,413 | $3.08M | 0.04% | +4,603+27.4% | Added |
| Cerity Partners LLC | 21,361 | $3.08M | 0.00% | −6,780−24.1% | Reduced |
| Virginia Retirement Systems Et Al | 21,265 | $3.06M | 0.02% | +3,100+17.1% | Added |
| Walleye Trading LLC | 21,085 | $3.04M | 0.05% | +21,085 | New |
| Bellevue Group AG | 20,251 | $2.92M | 0.06% | −61,146−75.1% | Reduced |
| Fieldview Capital Management, LLC | 20,229 | $2.91M | 0.48% | +20,229 | New |
| Superstring Capital Management LP | 19,786 | $2.85M | 2.81% | +5,215+35.8% | Added |
| Simplify Asset Management Inc. | 19,664 | $2.83M | 0.06% | +4,128+26.6% | Added |
| Sanctuary Advisors, LLC | 19,534 | $2.81M | 0.02% | +8,443+76.1% | Added |
| New York Life Investment Management LLC | 19,177 | $2.76M | 0.02% | +497+2.7% | Added |
| Tobam | 19,097 | $2.75M | 1.00% | +19,097 | New |
| Campbell & CO Investment Adviser LLC | 19,060 | $2.74M | 0.21% | +19,060 | New |
| Public Employees Retirement Association of Colorado | 19,020 | $2.74M | 0.01% | −238−1.2% | Reduced |
| West Michigan Advisors, LLC | 17,619 | $2.54M | 0.61% | +17,619 | New |
| SG Americas Securities, LLC | 17,406 | $2.51M | 0.01% | +13,305+324.4% | Added |
| Mackenzie Financial Corp | 16,819 | $2.42M | 0.00% | +3,238+23.8% | Added |
| Keybank National Association | 16,716 | $2.41M | 0.01% | +7,257+76.7% | Added |
| Group One Trading, L.P. | 16,535 | $2.38M | 0.07% | +16,535 | New |
| Oppenheimer Asset Management Inc. | 15,853 | $2.28M | 0.03% | −5,521−25.8% | Reduced |
| Next Century Growth Investors LLC | 15,849 | $2.28M | 0.17% | +15,849 | New |
| CI Private Wealth, LLC | 15,560 | $2.24M | 0.00% | +536+3.6% | Added |
| IMC-Chicago, LLC | 15,282 | $2.20M | 0.04% | +15,282 | New |
| WCM Investment Management, LLC | 15,500 | $2.20M | 0.00% | −138,486−89.9% | Reduced |
| Elo Mutual Pension Insurance Co | 15,086 | $2.17M | 0.04% | +15,086 | New |
| EFG Asset Management (North America) Corp. | 14,973 | $2.16M | 0.28% | −48,556−76.4% | Reduced |
| Amalgamated Bank | 14,533 | $2.09M | 0.01% | +1,560+12.0% | Added |
| Point72 Asia (Singapore) Pte. Ltd. | 14,371 | $2.07M | 0.32% | +8,901+162.7% | Added |
| Point72 Hong Kong Ltd | 14,021 | $2.02M | 0.09% | −55,793−79.9% | Reduced |
| Ikarian Capital, LLC | 13,751 | $1.98M | 0.45% | −150,000−91.6% | Reduced |
| OrbiMed Advisors LLC | 13,459 | $1.94M | 0.05% | 00.0% | Unchanged |
| Sectoral Asset Management Inc | 13,425 | $1.93M | 1.19% | −1,455−9.8% | Reduced |
| Granahan Investment Management Inc | 13,402 | $1.93M | 0.08% | −102,515−88.4% | Reduced |
| Dana Investment Advisors, Inc. | 13,375 | $1.93M | 0.06% | −3,723−21.8% | Reduced |
| O'Shaughnessy Asset Management, LLC | 13,226 | $1.90M | 0.01% | +1,886+16.6% | Added |
| Federation des caisses Desjardins du Quebec | 13,223 | $1.90M | 0.01% | +12,723+2,544.6% | Added |
| Groupama Asset Managment | 13,175 | $1.90M | 0.03% | 00.0% | Unchanged |
| Main Management ETF Advisors, LLC | 13,175 | $1.90M | 0.07% | +13,175 | New |
| Boothbay Fund Management, LLC | 12,817 | $1.85M | 0.05% | −39,934−75.7% | Reduced |
| Quantinno Capital Management LP | 12,778 | $1.84M | 0.01% | +8,310+186.0% | Added |
| Engineers Gate Manager LP | 12,468 | $1.80M | 0.02% | +12,468 | New |
| Emerald Advisers, LLC | 12,393 | $1.78M | 0.06% | −871−6.6% | Reduced |
| Emerald Mutual Fund Advisers Trust | 12,322 | $1.77M | 0.09% | −13,102−51.5% | Reduced |
| MYDA Advisors LLC | 12,000 | $1.73M | 0.52% | −20,000−62.5% | Reduced |
| Avidity Partners Management LP | 11,600 | $1.67M | 0.38% | −47,400−80.3% | 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 |
| Parallax Volatility Advisers, L.P. | 11,144 | $1.60M | 0.05% | −7,872−41.4% | Reduced |
| F/M Investments LLC | 11,067 | $1.59M | 0.06% | −12,494−53.0% | Reduced |
| Prudential Financial Inc | 10,970 | $1.58M | 0.00% | −144,470−92.9% | Reduced |
| Toroso Investments, LLC | 10,798 | $1.56M | 0.01% | +6,763+167.6% | Added |
| Qsemble Capital Management, LP | 10,711 | $1.54M | 0.15% | +10,711 | New |
| Park Avenue Securities LLC | 10,677 | $1.54M | 0.01% | −411−3.7% | Reduced |
| Nisa Investment Advisors, LLC | 10,466 | $1.51M | 0.01% | +8,261+374.6% | Added |
| Draper Asset Management, LLC | 10,339 | $1.49M | 0.90% | +3,183+44.5% | Added |
| Neo Ivy Capital Management | 9,688 | $1.40M | 0.34% | −7,568−43.9% | Reduced |
| KBC Group NV | 9,617 | $1.39M | 0.00% | +4,641+93.3% | Added |
| Yorktown Management & Research Co Inc | 9,600 | $1.38M | 1.10% | +3,750+64.1% | Added |
| JustInvest LLC | 9,552 | $1.38M | 0.01% | +1,471+18.2% | Added |
| Maryland State Retirement & Pension System | 9,284 | $1.34M | 0.03% | +608+7.0% | Added |
| Dark Forest Capital Management LP | 9,242 | $1.33M | 0.05% | +9,242 | New |
| Mirae Asset Global Investments Co., Ltd. | 9,082 | $1.31M | 0.00% | +1,590+21.2% | Added |
| Rockefeller Capital Management L.P. | 8,912 | $1.28M | 0.00% | +8,912 | New |
| SummitTX Capital, L.P. | 8,800 | $1.27M | 0.05% | −10,281−53.9% | Reduced |
| Waldron Private Wealth LLC | 8,800 | $1.27M | 0.05% | 00.0% | Unchanged |
| Parnassus Investments | 8,727 | $1.26M | 0.00% | +797+10.1% | Added |
| Swiss Life Asset Management Ltd | 8,716 | $1.26M | 0.01% | +3,973+83.8% | Added |
| US Bancorp | 8,651 | $1.25M | 0.00% | −1,101−11.3% | Reduced |
| Himension Fund | 8,587 | $1.24M | 0.08% | +8,587 | New |
| Wealth Enhancement Advisory Services, LLC | 7,598 | $1.23M | 0.00% | +3,152+70.9% | Added |
| Beacon Financial Advisory LLC | 8,480 | $1.22M | 0.28% | 00.0% | Unchanged |
| Wellington Shields Capital Management, LLC | 8,472 | $1.22M | 0.19% | +8,472 | New |
| Oxford Asset Management LLP | 8,308 | $1.20M | 0.39% | +3,811+84.7% | Added |
| S&CO Inc | 8,300 | $1.20M | 0.07% | 00.0% | Unchanged |
| Snowden Capital Advisors LLC | 7,769 | $1.12M | 0.03% | +46+0.6% | Added |
| J. Safra Sarasin Holding AG | 7,557 | $1.09M | 0.02% | +7,557 | New |
| ProShare Advisors LLC | 7,530 | $1.08M | 0.00% | +729+10.7% | Added |
| J. Goldman & Co LP | 7,371 | $1.06M | 0.04% | −287−3.7% | Reduced |
| Principal Securities, Inc. | 7,004 | $1.01M | 0.02% | +1,283+22.4% | Added |
| Walleye Capital LLC | 6,930 | $998.0K | 0.01% | −81,476−92.2% | Reduced |
| The PNC Financial Services Group, Inc. | 6,811 | $980.9K | 0.00% | −4,765−41.2% | Reduced |
| Everence Capital Management Inc | 6,443 | $928.0K | 0.06% | +1,343+26.3% | Added |
| QRG Capital Management, Inc. | 6,420 | $924.6K | 0.01% | +864+15.6% | Added |
| Lion Point Capital, LP | 6,250 | $900.1K | 5.11% | −4,400−41.3% | Reduced |