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, Q1 2026
Institutional positions in INSMED Inc as of Mar 31, 2026. 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
- 675
- +8 vs. Q4 2025
- Shares held
- 220.9M
- +27.6M (+14.3%) vs. Q4 2025
- Total value
- $35.7B
- +$2.06B (+6.1%) vs. Q4 2025
- New holders
- 101
- 288 more added
- Sold out
- 93
- 216 more reduced
11 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding INSMED Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Emerald Advisers, LLC | 11,990 | $1.96M | 0.06% | 00.0% | Unchanged |
| PKO Investment Management Joint-Stock Co | 11,800 | $1.93M | 0.16% | +500+4.4% | Added |
| AustralianSuper Pty Ltd | 11,670 | $1.91M | 0.01% | +1,665+16.6% | Added |
| Federation des caisses Desjardins du Quebec | 11,517 | $1.88M | 0.01% | −3,625−23.9% | Reduced |
| Jane Street Group, LLC | 11,401 | $1.86M | 0.00% | −2,104−15.6% | Reduced |
| Draper Asset Management, LLC | 11,321 | $1.85M | 1.06% | +9+0.1% | Added |
| AG2R la Mondiale Gestion D'Actifs | 11,244 | $1.84M | 0.08% | +1,567+16.2% | Added |
| JustInvest LLC | 11,210 | $1.83M | 0.02% | −214−1.9% | Reduced |
| E Fund Management Co., Ltd. | 11,016 | $1.80M | 0.05% | +11,016 | New |
| CIBC Bancorp USA Inc. | 11,006 | $1.80M | 0.00% | +11,006 | New |
| Cantor Fitzgerald, L. P. | 11,000 | $1.80M | 0.07% | +11,000 | New |
| Simplify Asset Management Inc. | 10,783 | $1.76M | 0.03% | −26,107−70.8% | Reduced |
| Simplex Trading, LLC | 10,715 | $1.75M | 0.05% | +10,715 | New |
| Maryland State Retirement & Pension System | 10,484 | $1.71M | 0.03% | 00.0% | Unchanged |
| Osmosis Investment Management UK Ltd | 10,475 | $1.71M | 0.05% | −850−7.5% | Reduced |
| Park Avenue Securities LLC | 10,309 | $1.69M | 0.01% | +10,309 | New |
| Soleus Capital Management, L.P. | 10,250 | $1.68M | 0.07% | −38,250−78.9% | Reduced |
| Bellevue Group AG | 10,034 | $1.64M | 0.04% | −3,881−27.9% | Reduced |
| Gotham Asset Management, LLC | 10,010 | $1.64M | 0.01% | −11,752−54.0% | Reduced |
| Vestmark Advisory Solutions, Inc. | 9,933 | $1.62M | 0.02% | +419+4.4% | Added |
| Vident Advisory, LLC | 9,808 | $1.60M | 0.01% | +4,794+95.6% | Added |
| M&T Bank Corp | 9,462 | $1.55M | 0.01% | +312+3.4% | Added |
| Tokio Marine Asset Management Co Ltd | 9,293 | $1.52M | 0.05% | +9,293 | New |
| Group One Trading, L.P. | 9,094 | $1.49M | 0.05% | +9,094 | New |
| Wealth Enhancement Advisory Services, LLC | 9,082 | $1.48M | 0.00% | −1,345−12.9% | Reduced |
| Formula Growth Ltd | 9,000 | $1.47M | 0.66% | +9,000 | New |
| The PNC Financial Services Group, Inc. | 8,910 | $1.46M | 0.00% | +2,050+29.9% | Added |
| AlphaCentric Advisors LLC | 8,874 | $1.45M | 1.45% | +1,286+16.9% | Added |
| Waldron Private Wealth LLC | 8,810 | $1.44M | 0.06% | 00.0% | Unchanged |
| QRG Capital Management, Inc. | 8,601 | $1.41M | 0.01% | −429−4.8% | Reduced |
| Fig Financial Advisory Services Inc | 8,308 | $1.36M | 0.85% | +8,308 | New |
| S&CO Inc | 8,300 | $1.36M | 0.08% | 00.0% | Unchanged |
| Emerald Mutual Fund Advisers Trust | 8,230 | $1.35M | 0.07% | −5,011−37.8% | Reduced |
| F/M Investments LLC | 8,230 | $1.35M | 0.09% | −5,011−37.8% | Reduced |
| Wiley Bros.-Aintree Capital, LLC | 8,198 | $1.34M | 0.01% | +939+12.9% | Added |
| Norinchukin Bank, The | 8,078 | $1.32M | 0.02% | +836+11.5% | Added |
| Prudential PLC | 8,023 | $1.31M | 0.01% | +4,121+105.6% | Added |
| BI Asset Management Fondsmaeglerselskab A/S | 8,008 | $1.31M | 0.01% | −22,519−73.8% | Reduced |
| PEAK6 LLC | 7,926 | $1.30M | 0.04% | −14,264−64.3% | Reduced |
| Yorktown Management & Research Co Inc | 7,925 | $1.30M | 1.08% | −1,675−17.4% | Reduced |
| Saudi Central Bank | 7,872 | $1.29M | 0.03% | +7,872 | New |
| Castleark Management LLC | 7,790 | $1.27M | 0.04% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 7,788 | $1.27M | 0.04% | +78+1.0% | Added |
| Walleye Trading LLC | 7,620 | $1.25M | 0.03% | −10,037−56.8% | Reduced |
| Snowden Capital Advisors LLC | 7,571 | $1.24M | 0.03% | +337+4.7% | Added |
| Credit Agricole S A | 7,501 | $1.23M | 0.00% | −6,426−46.1% | Reduced |
| Rockefeller Capital Management L.P. | 7,429 | $1.21M | 0.00% | −9,346−55.7% | Reduced |
| US Bancorp | 7,377 | $1.21M | 0.00% | −371−4.8% | Reduced |
| Pacer Advisors, Inc. | 7,279 | $1.19M | 0.00% | −8,304−53.3% | Reduced |
| Arrowpoint Investment Partners (Singapore) Pte. Ltd. | 7,018 | $1.15M | 1.67% | −4,538−39.3% | Reduced |
| MYDA Advisors LLC | 7,000 | $1.14M | 0.27% | −5,000−41.7% | Reduced |
| Intech Investment Management LLC | 6,779 | $1.11M | 0.01% | +3,552+110.1% | Added |
| Prelude Capital Management, LLC | 6,775 | $1.11M | 0.08% | +5,374+383.6% | Added |
| Vise Technologies, Inc. | 6,314 | $1.10M | 0.02% | 00.0% | Unchanged |
| Summit Trail Advisors, LLC | 6,714 | $1.10M | 0.02% | +2,250+50.4% | Added |
| Ethic Inc. | 6,670 | $1.09M | 0.02% | +2,669+66.7% | Added |
| Nan Fung Group Holdings Ltd | 6,580 | $1.08M | 0.89% | +6,580 | New |
| Everence Capital Management Inc | 6,384 | $1.04M | 0.06% | −390−5.8% | Reduced |
| North Dakota State Investment Board | 6,053 | $989.8K | 0.04% | −505−7.7% | Reduced |
| GWM Advisors LLC | 6,015 | $983.6K | 0.00% | +3,433+133.0% | Added |
| Aureus Asset Management, LLC | 6,000 | $981.1K | 0.07% | +6,000 | New |
| ING Groep NV | 5,996 | $980.5K | 0.01% | −116,949−95.1% | Reduced |
| Commonwealth Equity Services, LLC | 5,737 | $938.1K | 0.00% | +249+4.5% | Added |
| Mercer Global Advisors Inc | 5,732 | $937.3K | 0.00% | +165+3.0% | Added |
| Groupama Asset Managment | 5,590 | $914.1K | 0.01% | 00.0% | Unchanged |
| Pinkerton Retirement Specialists, LLC | 5,248 | $913.4K | 0.08% | +100+1.9% | Added |
| J. Goldman & Co LP | 5,545 | $906.7K | 0.04% | +4,114+287.5% | Added |
| Fulton Bank, N.A. | 5,338 | $872.9K | 0.03% | +13+0.2% | Added |
| Principal Securities, Inc. | 5,265 | $860.9K | 0.01% | +144+2.8% | Added |
| Resources Investment Advisors, LLC. | 5,245 | $857.7K | 0.01% | +213+4.2% | Added |
| E. Ohman J:or Asset Management AB | 5,239 | $856.7K | 0.02% | 00.0% | Unchanged |
| Macquarie Group Ltd | 5,193 | $849.2K | 0.01% | −2,100−28.8% | Reduced |
| Inceptionr LLC | 5,172 | $845.7K | 0.20% | +5,172 | New |
| Concurrent Investment Advisors, LLC | 5,141 | $840.7K | 0.01% | +1,211+30.8% | Added |
| Fideuram Asset Management (Ireland) dac | 5,536 | $778.5K | 0.10% | −5,622−50.4% | Reduced |
| Private Advisor Group, LLC | 4,749 | $776.6K | 0.00% | +82+1.8% | Added |
| XTX Topco Ltd | 4,662 | $762.3K | 0.01% | −1,436−23.5% | Reduced |
| MASTERINVEST Kapitalanlage GmbH | 4,640 | $758.7K | 0.08% | +4,640 | New |
| IMC-Chicago, LLC | 4,472 | $731.3K | 0.01% | +4,472 | New |
| Tema ETFs LLC | 4,417 | $722.3K | 0.05% | +1,022+30.1% | Added |
| Lombard Odier Asset Management (Switzerland) SA | 4,403 | $720.0K | 0.03% | +4,403 | New |
| Sequoia Financial Advisors, LLC | 4,385 | $717.0K | 0.00% | −1,555−26.2% | Reduced |
| Entropy Technologies, LP | 4,332 | $708.4K | 0.03% | +4,332 | New |
| Virtus Investment Advisers, Inc. | 4,283 | $700.4K | 0.19% | +815+23.5% | Added |
| CWM, LLC | 4,244 | $694.0K | 0.00% | −103−2.4% | Reduced |
| Vestcor Inc | 4,238 | $693.0K | 0.02% | 00.0% | Unchanged |
| Ikarian Capital, LLC | 4,214 | $689.1K | 0.10% | −5,123−54.9% | Reduced |
| NewEdge Wealth, LLC | 4,208 | $688.1K | 0.01% | +668+18.9% | Added |
| UniSuper Management Pty Ltd | 4,200 | $686.8K | 0.00% | 00.0% | Unchanged |
| Colony Group, LLC | 4,063 | $664.4K | 0.00% | −3,111−43.4% | Reduced |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 3,994 | $653.1K | 0.02% | +1,622+68.4% | Added |
| Meeder Advisory Services, Inc. | 3,987 | $652.0K | 0.03% | −795−16.6% | Reduced |
| United Capital Financial Advisers, LLC | 3,954 | $646.6K | 0.00% | +1,554+64.8% | Added |
| New York Life Investment Management LLC | 3,950 | $645.9K | 0.01% | +2,689+213.2% | Added |
| Banque Cantonale Vaudoise | 3,923 | $641.0K | 0.02% | +2,108+116.1% | Added |
| HighTower Advisors, LLC | 3,897 | $637.2K | 0.00% | +861+28.4% | Added |
| GraniteShares Advisors LLC | 3,894 | $636.7K | 0.46% | −11−0.3% | Reduced |
| Coldstream Capital Management Inc | 3,737 | $611.1K | 0.01% | −111−2.9% | Reduced |
| DRW Securities, LLC | 3,698 | $604.7K | 0.03% | +954+34.8% | Added |
| Mount Yale Investment Advisors, LLC | 3,674 | $600.8K | 0.01% | +1,925+110.1% | Added |