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, Q2 2026
Institutional positions in INSMED Inc as of Jun 30, 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
- 667
- −3 vs. Q1 2026
- Shares held
- 223.7M
- +3.22M (+1.5%) vs. Q1 2026
- Total value
- $23.8B
- −$11.8B (−33.1%) vs. Q1 2026
- New holders
- 119
- 247 more added
- Sold out
- 122
- 231 more reduced
5 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding INSMED Inc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Resona Asset Management Co.,Ltd. | 56,132 | $5.97M | 0.03% | −4,798−7.9% | Reduced |
| Cullen/Frost Bankers, Inc. | 54,740 | $5.84M | 0.06% | −838−1.5% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 54,644 | $5.83M | 0.01% | −97,722−64.1% | Reduced |
| IFM Investors Pty Ltd | 53,953 | $5.75M | 0.04% | +11,213+26.2% | Added |
| Man Group plc | 52,857 | $5.64M | 0.01% | −73,983−58.3% | Reduced |
| Illinois Municipal Retirement Fund | 52,668 | $5.62M | 0.06% | +52,668 | New |
| Stifel Financial Corp | 52,163 | $5.56M | 0.00% | −23,539−31.1% | Reduced |
| Ishara Investments LP | 51,250 | $5.46M | 4.09% | +51,250 | New |
| Redmile Group, LLC | 51,234 | $5.46M | 0.37% | +51,234 | New |
| EFG International AG | 50,941 | $5.43M | 0.10% | +10,399+25.6% | Added |
| Simon Quick Advisors, LLC | 50,047 | $5.34M | 0.22% | −180.0% | Reduced |
| Cetera Investment Advisers | 48,622 | $5.18M | 0.00% | +14,266+41.5% | Added |
| Quadrature Capital Ltd | 48,355 | $5.16M | 0.04% | +48,355 | New |
| Xponance, Inc. | 48,273 | $5.15M | 0.03% | +421+0.9% | Added |
| Boothbay Fund Management, LLC | 47,266 | $5.04M | 0.10% | +47,266 | New |
| BI Asset Management Fondsmaeglerselskab A/S | 46,033 | $4.91M | 0.04% | +38,025+474.8% | Added |
| Fifth Third Bancorp | 45,844 | $4.89M | 0.01% | +27,644+151.9% | Added |
| Entropy Technologies, LP | 45,469 | $4.85M | 0.19% | +41,137+949.6% | Added |
| Lazard Asset Management LLC | 44,473 | $4.74M | 0.01% | +44,473 | New |
| Campbell & CO Investment Adviser LLC | 43,856 | $4.68M | 0.25% | +43,856 | New |
| Los Angeles Capital Management LLC | 43,092 | $4.59M | 0.02% | +42,156+4,503.8% | Added |
| Essex Investment Management Co LLC | 42,991 | $4.58M | 0.60% | −19,685−31.4% | Reduced |
| Brown Advisory Inc | 41,694 | $4.45M | 0.01% | +18,745+81.7% | Added |
| Ofi Invest Asset Management | 47,000 | $4.38M | 0.04% | +47,000 | New |
| Erste Asset Management GmbH | 41,746 | $4.37M | 0.03% | +143+0.3% | Added |
| Headlands Technologies LLC | 40,855 | $4.36M | 0.46% | +38,047+1,355.0% | Added |
| B. Metzler seel. Sohn & Co. AG | 40,521 | $4.32M | 0.04% | +1,278+3.3% | Added |
| Mutual of America Capital Management LLC | 39,594 | $4.22M | 0.04% | +2,713+7.4% | Added |
| Algert Global LLC | 39,480 | $4.21M | 0.05% | +39,480 | New |
| Guggenheim Capital LLC | 38,766 | $4.13M | 0.03% | −41,255−51.6% | Reduced |
| Nomura Holdings Inc | 36,000 | $3.84M | 0.02% | +16,955+89.0% | Added |
| Brinker Capital Investments, LLC | 35,467 | $3.78M | 0.03% | +826+2.4% | Added |
| Korea Investment CORP | 35,429 | $3.78M | 0.01% | 00.0% | Unchanged |
| Militia Capital Management LLC | 35,100 | $3.74M | 0.67% | +35,100 | New |
| Assetmark, Inc | 34,871 | $3.72M | 0.01% | +613+1.8% | Added |
| China Universal Asset Management Co., Ltd. | 34,496 | $3.68M | 0.22% | −12,519−26.6% | Reduced |
| Silverarc Capital Management, LLC | 34,438 | $3.67M | 0.41% | −1,412−3.9% | Reduced |
| KBC Group NV | 34,421 | $3.67M | 0.01% | −2,926−7.8% | Reduced |
| MML Investors Services, LLC | 32,823 | $3.50M | 0.01% | +8,050+32.5% | Added |
| Group One Trading, L.P. | 32,654 | $3.48M | 0.10% | +23,560+259.1% | Added |
| Utah Retirement Systems | 32,484 | $3.46M | 0.03% | −1,547−4.5% | Reduced |
| Tredje AP-fonden | 32,407 | $3.46M | 0.02% | −44,197−57.7% | Reduced |
| Quantinno Capital Management LP | 32,163 | $3.43M | 0.00% | −3,389−9.5% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 31,808 | $3.39M | 0.03% | −57,822−64.5% | Reduced |
| British Columbia Investment Management Corp | 31,414 | $3.35M | 0.02% | +2,016+6.9% | Added |
| PensionDanmark Pensionsforsikringsaktieselskab | 31,393 | $3.35M | 0.03% | +2,338+8.0% | Added |
| Landscape Capital Management, L.L.C. | 31,345 | $3.34M | 0.22% | +31,345 | New |
| HighVista Strategies LLC | 31,256 | $3.33M | 0.76% | +6,940+28.5% | Added |
| Arrowpoint Investment Partners (Singapore) Pte. Ltd. | 30,170 | $3.22M | 0.95% | +23,152+329.9% | Added |
| Rafferty Asset Management, LLC | 30,045 | $3.20M | 0.01% | −86,024−74.1% | Reduced |
| Teacher Retirement System of Texas | 28,747 | $3.07M | 0.01% | −1,635−5.4% | Reduced |
| Toronto Dominion Bank | 28,611 | $3.05M | 0.01% | −260−0.9% | Reduced |
| GordonMD Global Investments LP | 28,587 | $3.05M | 1.67% | 00.0% | Unchanged |
| KVP Capital Advisors, LP | 28,497 | $3.04M | 2.23% | 00.0% | Unchanged |
| Nissay Asset Management Corp | 28,233 | $3.01M | 0.01% | −31,810−53.0% | Reduced |
| Fideuram Asset Management (Ireland) dac | 29,699 | $2.97M | 0.06% | +24,163+436.5% | Added |
| Swiss Life Asset Management Ltd | 27,552 | $2.94M | 0.01% | +9,046+48.9% | Added |
| Agf Management Ltd | 27,286 | $2.91M | 0.01% | −30,172−52.5% | Reduced |
| CI Private Wealth, LLC | 27,018 | $2.88M | 0.00% | −3,231−10.7% | Reduced |
| National Pension Service | 26,678 | $2.84M | 0.00% | −285,203−91.4% | Reduced |
| Catalyst Funds Management Pty Ltd | 26,200 | $2.79M | 0.16% | +26,200 | New |
| Next Century Growth Investors LLC | 26,159 | $2.79M | 0.15% | −80.0% | Reduced |
| Robeco Institutional Asset Management B.V. | 26,115 | $2.78M | 0.00% | +5,341+25.7% | Added |
| Nicholas Investment Partners, LP | 25,356 | $2.70M | 0.15% | −157,184−86.1% | Reduced |
| Cantor Fitzgerald, L. P. | 25,000 | $2.67M | 0.05% | +14,000+127.3% | Added |
| OP Asset Management Ltd | 24,951 | $2.66M | 0.03% | +2,729+12.3% | Added |
| Prudential PLC | 24,458 | $2.61M | 0.02% | +16,435+204.8% | Added |
| Atom Investors LP | 24,374 | $2.60M | 0.23% | +8,606+54.6% | Added |
| Pathstone Holdings, LLC | 23,914 | $2.55M | 0.01% | −3,335−12.2% | Reduced |
| Daiwa Securities Group Inc. | 23,362 | $2.49M | 0.01% | −16,067−40.7% | Reduced |
| Sectoral Asset Management Inc | 23,216 | $2.48M | 1.73% | +3,548+18.0% | Added |
| STRS Ohio | 22,827 | $2.43M | 0.01% | −29,182−56.1% | Reduced |
| Axq Capital, LP | 22,813 | $2.43M | 0.26% | +22,813 | New |
| Nordea Investment Management AB | 22,855 | $2.43M | 0.00% | +608+2.7% | Added |
| Tobam | 22,370 | $2.38M | 0.58% | +58+0.3% | Added |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 22,303 | $2.38M | 0.02% | 00.0% | Unchanged |
| Royal London Asset Management Ltd | 22,116 | $2.36M | 0.00% | +7,618+52.5% | Added |
| Gotham Asset Management, LLC | 21,893 | $2.33M | 0.01% | +11,883+118.7% | Added |
| Allspring Global Investments Holdings, LLC | 21,129 | $2.26M | 0.00% | −261,605−92.5% | Reduced |
| Qsemble Capital Management, LP | 21,148 | $2.25M | 0.29% | +21,148 | New |
| Bank of Montreal | 20,748 | $2.21M | 0.00% | −41,832−66.8% | Reduced |
| Eurizon Capital SGR S.p.A. | 20,247 | $2.15M | 0.01% | +1,774+9.6% | Added |
| 683 Capital Management, LLC | 20,000 | $2.13M | 0.20% | +20,000 | New |
| Silvant Capital Management LLC | 19,761 | $2.11M | 0.06% | −144−0.7% | Reduced |
| Havemeyer Place LP | 19,121 | $2.04M | 0.20% | +6,660+53.4% | Added |
| Public Employees Retirement Association of Colorado | 19,020 | $2.03M | 0.01% | 00.0% | Unchanged |
| Mirae Asset Global Investments Co., Ltd. | 18,791 | $2.00M | 0.00% | −73,289−79.6% | Reduced |
| SummitTX Capital, L.P. | 18,751 | $2.00M | 0.05% | −4,402−19.0% | Reduced |
| WCM Investment Management, LLC | 19,033 | $1.99M | 0.00% | +3,326+21.2% | Added |
| Cerity Partners LLC | 18,668 | $1.99M | 0.00% | −2,816−13.1% | Reduced |
| Thornburg Investment Management Inc | 18,413 | $1.96M | 0.02% | −19,924−52.0% | Reduced |
| Advisor Group Holdings, Inc. | 17,811 | $1.90M | 0.00% | −846−4.5% | Reduced |
| Wealthfront Advisers LLC | 17,511 | $1.87M | 0.00% | −893−4.9% | Reduced |
| Intech Investment Management LLC | 17,177 | $1.83M | 0.02% | +10,398+153.4% | Added |
| National Bank of Canada | 16,886 | $1.80M | 0.00% | −87,872−83.9% | Reduced |
| Aigen Investment Management, LP | 16,847 | $1.80M | 0.49% | +16,847 | New |
| Bridgefront Capital, LLC | 16,808 | $1.79M | 0.47% | +16,808 | New |
| Bank of Nova Scotia | 16,399 | $1.75M | 0.00% | +1,196+7.9% | Added |
| Gulf International Bank (UK) Ltd | 16,227 | $1.73M | 0.03% | −318−1.9% | Reduced |
| Oppenheimer Asset Management Inc. | 16,061 | $1.71M | 0.02% | +1,336+9.1% | Added |