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 |
|---|---|---|---|---|---|
| Fideuram Asset Management (Ireland) dac | 5,536 | $778.5K | 0.10% | −5,622−50.4% | Reduced |
| Concurrent Investment Advisors, LLC | 5,141 | $840.7K | 0.01% | +1,211+30.8% | Added |
| Inceptionr LLC | 5,172 | $845.7K | 0.20% | +5,172 | New |
| Macquarie Group Ltd | 5,193 | $849.2K | 0.01% | −2,100−28.8% | Reduced |
| E. Ohman J:or Asset Management AB | 5,239 | $856.7K | 0.02% | 00.0% | Unchanged |
| Resources Investment Advisors, LLC. | 5,245 | $857.7K | 0.01% | +213+4.2% | Added |
| Principal Securities, Inc. | 5,265 | $860.9K | 0.01% | +144+2.8% | Added |
| Fulton Bank, N.A. | 5,338 | $872.9K | 0.03% | +13+0.2% | Added |
| J. Goldman & Co LP | 5,545 | $906.7K | 0.04% | +4,114+287.5% | Added |
| Pinkerton Retirement Specialists, LLC | 5,248 | $913.4K | 0.08% | +100+1.9% | Added |
| Groupama Asset Managment | 5,590 | $914.1K | 0.01% | 00.0% | Unchanged |
| Mercer Global Advisors Inc | 5,732 | $937.3K | 0.00% | +165+3.0% | Added |
| Commonwealth Equity Services, LLC | 5,737 | $938.1K | 0.00% | +249+4.5% | Added |
| ING Groep NV | 5,996 | $980.5K | 0.01% | −116,949−95.1% | Reduced |
| Aureus Asset Management, LLC | 6,000 | $981.1K | 0.07% | +6,000 | New |
| GWM Advisors LLC | 6,015 | $983.6K | 0.00% | +3,433+133.0% | Added |
| North Dakota State Investment Board | 6,053 | $989.8K | 0.04% | −505−7.7% | Reduced |
| Everence Capital Management Inc | 6,384 | $1.04M | 0.06% | −390−5.8% | Reduced |
| Nan Fung Group Holdings Ltd | 6,580 | $1.08M | 0.89% | +6,580 | New |
| Ethic Inc. | 6,670 | $1.09M | 0.02% | +2,669+66.7% | Added |
| Summit Trail Advisors, LLC | 6,714 | $1.10M | 0.02% | +2,250+50.4% | Added |
| Vise Technologies, Inc. | 6,314 | $1.10M | 0.02% | 00.0% | Unchanged |
| Prelude Capital Management, LLC | 6,775 | $1.11M | 0.08% | +5,374+383.6% | Added |
| Intech Investment Management LLC | 6,779 | $1.11M | 0.01% | +3,552+110.1% | Added |
| MYDA Advisors LLC | 7,000 | $1.14M | 0.27% | −5,000−41.7% | Reduced |
| Arrowpoint Investment Partners (Singapore) Pte. Ltd. | 7,018 | $1.15M | 1.67% | −4,538−39.3% | Reduced |
| Pacer Advisors, Inc. | 7,279 | $1.19M | 0.00% | −8,304−53.3% | Reduced |
| US Bancorp | 7,377 | $1.21M | 0.00% | −371−4.8% | Reduced |
| Rockefeller Capital Management L.P. | 7,429 | $1.21M | 0.00% | −9,346−55.7% | Reduced |
| Credit Agricole S A | 7,501 | $1.23M | 0.00% | −6,426−46.1% | Reduced |
| Snowden Capital Advisors LLC | 7,571 | $1.24M | 0.03% | +337+4.7% | Added |
| Walleye Trading LLC | 7,620 | $1.25M | 0.03% | −10,037−56.8% | Reduced |
| Ameritas Investment Partners, Inc. | 7,788 | $1.27M | 0.04% | +78+1.0% | Added |
| Castleark Management LLC | 7,790 | $1.27M | 0.04% | 00.0% | Unchanged |
| Saudi Central Bank | 7,872 | $1.29M | 0.03% | +7,872 | New |
| Yorktown Management & Research Co Inc | 7,925 | $1.30M | 1.08% | −1,675−17.4% | Reduced |
| PEAK6 LLC | 7,926 | $1.30M | 0.04% | −14,264−64.3% | Reduced |
| BI Asset Management Fondsmaeglerselskab A/S | 8,008 | $1.31M | 0.01% | −22,519−73.8% | Reduced |
| Prudential PLC | 8,023 | $1.31M | 0.01% | +4,121+105.6% | Added |
| Norinchukin Bank, The | 8,078 | $1.32M | 0.02% | +836+11.5% | Added |
| Wiley Bros.-Aintree Capital, LLC | 8,198 | $1.34M | 0.01% | +939+12.9% | Added |
| 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 |
| S&CO Inc | 8,300 | $1.36M | 0.08% | 00.0% | Unchanged |
| Fig Financial Advisory Services Inc | 8,308 | $1.36M | 0.85% | +8,308 | New |
| QRG Capital Management, Inc. | 8,601 | $1.41M | 0.01% | −429−4.8% | Reduced |
| Waldron Private Wealth LLC | 8,810 | $1.44M | 0.06% | 00.0% | Unchanged |
| AlphaCentric Advisors LLC | 8,874 | $1.45M | 1.45% | +1,286+16.9% | Added |
| The PNC Financial Services Group, Inc. | 8,910 | $1.46M | 0.00% | +2,050+29.9% | Added |
| Formula Growth Ltd | 9,000 | $1.47M | 0.66% | +9,000 | New |
| Wealth Enhancement Advisory Services, LLC | 9,082 | $1.48M | 0.00% | −1,345−12.9% | Reduced |
| Group One Trading, L.P. | 9,094 | $1.49M | 0.05% | +9,094 | New |
| Tokio Marine Asset Management Co Ltd | 9,293 | $1.52M | 0.05% | +9,293 | New |
| M&T Bank Corp | 9,462 | $1.55M | 0.01% | +312+3.4% | Added |
| Vident Advisory, LLC | 9,808 | $1.60M | 0.01% | +4,794+95.6% | Added |
| Vestmark Advisory Solutions, Inc. | 9,933 | $1.62M | 0.02% | +419+4.4% | Added |
| Gotham Asset Management, LLC | 10,010 | $1.64M | 0.01% | −11,752−54.0% | Reduced |
| Bellevue Group AG | 10,034 | $1.64M | 0.04% | −3,881−27.9% | Reduced |
| Soleus Capital Management, L.P. | 10,250 | $1.68M | 0.07% | −38,250−78.9% | Reduced |
| Park Avenue Securities LLC | 10,309 | $1.69M | 0.01% | +10,309 | New |
| Osmosis Investment Management UK Ltd | 10,475 | $1.71M | 0.05% | −850−7.5% | Reduced |
| Maryland State Retirement & Pension System | 10,484 | $1.71M | 0.03% | 00.0% | Unchanged |
| Simplex Trading, LLC | 10,715 | $1.75M | 0.05% | +10,715 | New |
| Simplify Asset Management Inc. | 10,783 | $1.76M | 0.03% | −26,107−70.8% | Reduced |
| Cantor Fitzgerald, L. P. | 11,000 | $1.80M | 0.07% | +11,000 | New |
| CIBC Bancorp USA Inc. | 11,006 | $1.80M | 0.00% | +11,006 | New |
| E Fund Management Co., Ltd. | 11,016 | $1.80M | 0.05% | +11,016 | New |
| JustInvest LLC | 11,210 | $1.83M | 0.02% | −214−1.9% | Reduced |
| AG2R la Mondiale Gestion D'Actifs | 11,244 | $1.84M | 0.08% | +1,567+16.2% | Added |
| Draper Asset Management, LLC | 11,321 | $1.85M | 1.06% | +9+0.1% | Added |
| Jane Street Group, LLC | 11,401 | $1.86M | 0.00% | −2,104−15.6% | Reduced |
| Federation des caisses Desjardins du Quebec | 11,517 | $1.88M | 0.01% | −3,625−23.9% | Reduced |
| AustralianSuper Pty Ltd | 11,670 | $1.91M | 0.01% | +1,665+16.6% | Added |
| PKO Investment Management Joint-Stock Co | 11,800 | $1.93M | 0.16% | +500+4.4% | Added |
| Emerald Advisers, LLC | 11,990 | $1.96M | 0.06% | 00.0% | Unchanged |
| Ilmarinen Mutual Pension Insurance Co | 12,000 | $1.96M | 0.02% | +12,000 | New |
| MetLife Investment Management | 12,290 | $2.01M | 0.01% | −601−4.7% | Reduced |
| Havemeyer Place LP | 12,461 | $2.04M | 0.24% | +6,570+111.5% | Added |
| Thrivent Financial for Lutherans | 12,633 | $2.07M | 0.00% | +12,633 | New |
| Sterling Capital Management LLC | 12,993 | $2.12M | 0.04% | +10,811+495.5% | Added |
| Abn Amro Investment Solutions | 13,143 | $2.15M | 0.03% | +3,154+31.6% | Added |
| Capital Investment Advisors, LLC | 13,245 | $2.17M | 0.03% | +13,245 | New |
| Captrust Financial Advisors | 13,252 | $2.17M | 0.00% | +7,868+146.1% | Added |
| Nisa Investment Advisors, LLC | 13,447 | $2.20M | 0.01% | −4,095−23.3% | Reduced |
| Louisiana State Employees Retirement System | 14,200 | $2.32M | 0.04% | −100−0.7% | Reduced |
| Quantitative Investment Management, LLC | 14,305 | $2.34M | 0.24% | +6,157+75.6% | Added |
| Royal London Asset Management Ltd | 14,498 | $2.37M | 0.00% | +5,988+70.4% | Added |
| Allianz Asset Management GmbH | 14,600 | $2.39M | 0.00% | −28,007−65.7% | Reduced |
| Oppenheimer Asset Management Inc. | 14,725 | $2.41M | 0.03% | +1,574+12.0% | Added |
| WCM Investment Management, LLC | 15,707 | $2.41M | 0.01% | +5,339+51.5% | Added |
| Keybank National Association | 14,836 | $2.43M | 0.01% | −330−2.2% | Reduced |
| Bank of Nova Scotia | 15,203 | $2.49M | 0.00% | −45,572−75.0% | Reduced |
| Investment Management Corp of Ontario | 15,221 | $2.49M | 0.03% | +1,000+7.0% | Added |
| Tower Research Capital LLC (TRC) | 15,410 | $2.52M | 0.07% | +10,113+190.9% | Added |
| Truist Financial Corp | 15,416 | $2.52M | 0.00% | −317−2.0% | Reduced |
| Atom Investors LP | 15,768 | $2.58M | 0.18% | +15,768 | New |
| Prudential Financial Inc | 15,875 | $2.60M | 0.00% | +9,938+167.4% | Added |
| Harvest Fund Management Co., Ltd | 15,921 | $2.60M | 0.11% | −1,370−7.9% | Reduced |
| Amalgamated Bank | 15,921 | $2.60M | 0.02% | −822−4.9% | Reduced |
| Oak Ridge Investments LLC | 16,044 | $2.62M | 0.17% | +2,231+16.2% | Added |