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 |
|---|---|---|---|---|---|
| E. Ohman J:or Asset Management AB | 7,789 | $830.5K | 0.02% | +2,550+48.7% | Added |
| Castleark Management LLC | 7,790 | $830.6K | 0.02% | 00.0% | Unchanged |
| Prudential Financial Inc | 7,815 | $833.2K | 0.00% | −8,060−50.8% | Reduced |
| Summit Trail Advisors, LLC | 7,922 | $844.6K | 0.01% | +1,208+18.0% | Added |
| Yorktown Management & Research Co Inc | 7,925 | $845.0K | 0.52% | 00.0% | Unchanged |
| Wiley Bros.-Aintree Capital, LLC | 7,952 | $847.0K | 0.00% | −246−3.0% | Reduced |
| QRG Capital Management, Inc. | 7,984 | $851.3K | 0.01% | −617−7.2% | Reduced |
| RMB Capital Management, LLC | 8,014 | $854.5K | 0.01% | +8,014 | New |
| The PNC Financial Services Group, Inc. | 8,154 | $869.4K | 0.00% | −756−8.5% | Reduced |
| LMR Partners LLP | 8,400 | $895.6K | 0.01% | +5,100+154.5% | Added |
| Calamos Advisors LLC | 8,507 | $907.0K | 0.00% | −27,866−76.6% | Reduced |
| Gabelli Funds LLC | 8,550 | $911.6K | 0.01% | +5,850+216.7% | Added |
| Waldron Private Wealth LLC | 8,810 | $939.3K | 0.03% | 00.0% | Unchanged |
| Colony Group, LLC | 8,915 | $950.6K | 0.00% | +4,852+119.4% | Added |
| M&T Bank Corp | 8,932 | $952.2K | 0.00% | −530−5.6% | Reduced |
| CIBC Bancorp USA Inc. | 9,068 | $954.7K | 0.00% | −1,938−17.6% | Reduced |
| Allianz Asset Management GmbH | 9,200 | $980.9K | 0.00% | −5,400−37.0% | Reduced |
| Dark Forest Capital Management LP | 9,356 | $997.5K | 0.06% | +6,898+280.6% | Added |
| Fieldview Capital Management, LLC | 9,748 | $1.04M | 0.30% | +7,549+343.3% | Added |
| Vident Advisory, LLC | 9,856 | $1.05M | 0.01% | +48+0.5% | Added |
| Jefferies Financial Group Inc. | 9,896 | $1.06M | 0.01% | +6,396+182.7% | Added |
| Park Avenue Securities LLC | 9,927 | $1.06M | 0.01% | −382−3.7% | Reduced |
| Bamco Inc | 10,000 | $1.07M | 0.00% | −10,000−50.0% | Reduced |
| CIBC Asset Management Inc | 10,148 | $1.08M | 0.00% | −38,045−78.9% | Reduced |
| Sanctuary Advisors, LLC | 10,253 | $1.09M | 0.01% | −13,716−57.2% | Reduced |
| Two Sigma Securities, LLC | 10,338 | $1.10M | 0.10% | +8,425+440.4% | Added |
| Credit Agricole S A | 10,554 | $1.13M | 0.00% | +3,053+40.7% | Added |
| Aquatic Capital Management LLC | 10,593 | $1.13M | 0.04% | +10,593 | New |
| Tower Research Capital LLC (TRC) | 10,927 | $1.17M | 0.03% | −4,483−29.1% | Reduced |
| Legato Capital Management LLC | 11,129 | $1.19M | 0.10% | −28,425−71.9% | Reduced |
| Emerald Mutual Fund Advisers Trust | 11,218 | $1.20M | 0.04% | +2,988+36.3% | Added |
| F/M Investments LLC | 11,218 | $1.20M | 0.06% | +2,988+36.3% | Added |
| CWM Advisors, LLC | 11,287 | $1.20M | 0.05% | +11,287 | New |
| JustInvest LLC | 11,342 | $1.21M | 0.01% | +132+1.2% | Added |
| Maryland State Retirement & Pension System | 11,369 | $1.21M | 0.02% | +885+8.4% | Added |
| Aureus Asset Management, LLC | 11,441 | $1.22M | 0.07% | +5,441+90.7% | Added |
| AlphaCentric Advisors LLC | 11,699 | $1.25M | 1.06% | +2,825+31.8% | Added |
| O'Shaughnessy Asset Management, LLC | 11,730 | $1.25M | 0.01% | −4,320−26.9% | Reduced |
| Aster Capital Management (DIFC) Ltd | 11,814 | $1.26M | 0.27% | +11,762+22,619.2% | Added |
| Virtus Investment Advisers, Inc. | 11,884 | $1.27M | 0.30% | +7,601+177.5% | Added |
| Rakuten Investment Management, Inc. | 12,109 | $1.27M | 0.00% | −31,740−72.4% | Reduced |
| MetLife Investment Management | 11,926 | $1.27M | 0.01% | −364−3.0% | Reduced |
| Ilmarinen Mutual Pension Insurance Co | 12,000 | $1.28M | 0.01% | 00.0% | Unchanged |
| Abn Amro Investment Solutions | 12,028 | $1.28M | 0.01% | −1,115−8.5% | Reduced |
| Banque Cantonale Vaudoise | 12,070 | $1.29M | 0.05% | +8,147+207.7% | Added |
| Tokio Marine Asset Management Co Ltd | 12,200 | $1.30M | 0.04% | +2,907+31.3% | Added |
| Wealth Enhancement Advisory Services, LLC | 11,300 | $1.31M | 0.00% | +2,218+24.4% | Added |
| Inceptionr LLC | 12,296 | $1.31M | 0.32% | +7,124+137.7% | Added |
| Atria Investments LLC | 12,370 | $1.32M | 0.01% | −9,475−43.4% | Reduced |
| Sterling Capital Management LLC | 12,580 | $1.34M | 0.02% | −413−3.2% | Reduced |
| Thrivent Financial for Lutherans | 12,633 | $1.35M | 0.00% | 00.0% | Unchanged |
| S&CO Inc | 13,000 | $1.39M | 0.08% | +4,700+56.6% | Added |
| Capital Investment Advisors, LLC | 13,238 | $1.41M | 0.02% | −7−0.1% | Reduced |
| Investment Management Corp of Ontario | 13,421 | $1.43M | 0.02% | −1,800−11.8% | Reduced |
| Twinbeech Capital LP | 13,646 | $1.45M | 0.26% | +13,646 | New |
| Federation des caisses Desjardins du Quebec | 13,722 | $1.46M | 0.00% | +2,205+19.1% | Added |
| Exome Asset Management LLC | 13,873 | $1.48M | 0.91% | −12,778−47.9% | Reduced |
| Simplify Asset Management Inc. | 14,190 | $1.51M | 0.02% | +3,407+31.6% | Added |
| SBI Okasan Asset Management Co.Ltd. | 14,700 | $1.54M | 0.05% | −3,300−18.3% | Reduced |
| Profund Advisors LLC | 14,602 | $1.56M | 0.04% | −13,335−47.7% | Reduced |
| Saudi Central Bank | 14,732 | $1.57M | 0.02% | +6,860+87.1% | Added |
| Oak Ridge Investments LLC | 15,068 | $1.61M | 0.09% | −976−6.1% | Reduced |
| Emerald Advisers, LLC | 15,252 | $1.63M | 0.04% | +3,262+27.2% | Added |
| Amalgamated Bank | 15,577 | $1.66M | 0.01% | −344−2.2% | Reduced |
| Truist Financial Corp | 15,621 | $1.67M | 0.00% | +205+1.3% | Added |
| Brevan Howard Capital Management LP | 15,677 | $1.67M | 0.02% | +12,156+345.2% | Added |
| Quantitative Investment Management, LLC | 15,894 | $1.69M | 0.18% | +1,589+11.1% | Added |
| Oppenheimer Asset Management Inc. | 16,061 | $1.71M | 0.02% | +1,336+9.1% | Added |
| Gulf International Bank (UK) Ltd | 16,227 | $1.73M | 0.03% | −318−1.9% | Reduced |
| Bank of Nova Scotia | 16,399 | $1.75M | 0.00% | +1,196+7.9% | Added |
| Bridgefront Capital, LLC | 16,808 | $1.79M | 0.47% | +16,808 | New |
| Aigen Investment Management, LP | 16,847 | $1.80M | 0.49% | +16,847 | New |
| National Bank of Canada | 16,886 | $1.80M | 0.00% | −87,872−83.9% | Reduced |
| Intech Investment Management LLC | 17,177 | $1.83M | 0.02% | +10,398+153.4% | Added |
| Wealthfront Advisers LLC | 17,511 | $1.87M | 0.00% | −893−4.9% | Reduced |
| Advisor Group Holdings, Inc. | 17,811 | $1.90M | 0.00% | −846−4.5% | Reduced |
| Thornburg Investment Management Inc | 18,413 | $1.96M | 0.02% | −19,924−52.0% | Reduced |
| Cerity Partners LLC | 18,668 | $1.99M | 0.00% | −2,816−13.1% | Reduced |
| WCM Investment Management, LLC | 19,033 | $1.99M | 0.00% | +3,326+21.2% | Added |
| SummitTX Capital, L.P. | 18,751 | $2.00M | 0.05% | −4,402−19.0% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 18,791 | $2.00M | 0.00% | −73,289−79.6% | Reduced |
| Public Employees Retirement Association of Colorado | 19,020 | $2.03M | 0.01% | 00.0% | Unchanged |
| Havemeyer Place LP | 19,121 | $2.04M | 0.20% | +6,660+53.4% | Added |
| Silvant Capital Management LLC | 19,761 | $2.11M | 0.06% | −144−0.7% | Reduced |
| 683 Capital Management, LLC | 20,000 | $2.13M | 0.20% | +20,000 | New |
| Eurizon Capital SGR S.p.A. | 20,247 | $2.15M | 0.01% | +1,774+9.6% | Added |
| Bank of Montreal | 20,748 | $2.21M | 0.00% | −41,832−66.8% | Reduced |
| Qsemble Capital Management, LP | 21,148 | $2.25M | 0.29% | +21,148 | New |
| Allspring Global Investments Holdings, LLC | 21,129 | $2.26M | 0.00% | −261,605−92.5% | Reduced |
| Gotham Asset Management, LLC | 21,893 | $2.33M | 0.01% | +11,883+118.7% | Added |
| Royal London Asset Management Ltd | 22,116 | $2.36M | 0.00% | +7,618+52.5% | Added |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 22,303 | $2.38M | 0.02% | 00.0% | Unchanged |
| Tobam | 22,370 | $2.38M | 0.58% | +58+0.3% | Added |
| Nordea Investment Management AB | 22,855 | $2.43M | 0.00% | +608+2.7% | Added |
| Axq Capital, LP | 22,813 | $2.43M | 0.26% | +22,813 | New |
| STRS Ohio | 22,827 | $2.43M | 0.01% | −29,182−56.1% | Reduced |
| Sectoral Asset Management Inc | 23,216 | $2.48M | 1.73% | +3,548+18.0% | Added |
| Daiwa Securities Group Inc. | 23,362 | $2.49M | 0.01% | −16,067−40.7% | Reduced |
| Pathstone Holdings, LLC | 23,914 | $2.55M | 0.01% | −3,335−12.2% | Reduced |
| Atom Investors LP | 24,374 | $2.60M | 0.23% | +8,606+54.6% | Added |