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, Q4 2023
Institutional positions in INSMED Inc as of Dec 31, 2023. 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
- 271
- +23 vs. Q3 2023
- Shares held
- 149.8M
- +2.46M (+1.7%) vs. Q3 2023
- Total value
- $4.64B
- +$921.8M (+24.8%) vs. Q3 2023
- New holders
- 48
- 91 more added
- Sold out
- 25
- 88 more reduced
4 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2023: 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, Q4 2023
Shares, value and share of portfolio for each institution holding INSMED Inc; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 14,125,521 | $437.7M | 0.01% | −219,991−1.5% | Reduced |
| BlackRock Inc. | 11,492,282 | $356.1M | 0.01% | +1,101,592+10.6% | Added |
| Price T Rowe Associates Inc | 10,763,771 | $333.6M | 0.04% | +356,555+3.4% | Added |
| State Street Corp | 5,929,933 | $183.8M | 0.01% | +875,550+17.3% | Added |
| T. Rowe Price Investment Management, Inc. | 5,850,606 | $181.3M | 0.12% | −2,474,278−29.7% | Reduced |
| Palo Alto Investors LP | 5,511,721 | $170.8M | 15.39% | −377,770−6.4% | Reduced |
| Deep Track Capital, LP | 5,350,000 | $165.8M | 5.81% | −650,000−10.8% | Reduced |
| FMR LLC | 5,091,614 | $157.8M | 0.01% | +786,660+18.3% | Added |
| Macquarie Group Ltd | 4,651,492 | $144.2M | 0.17% | −2,2800.0% | Reduced |
| William Blair Investment Management, LLC | 4,256,687 | $131.9M | 0.38% | +14,752+0.3% | Added |
| Franklin Resources Inc | 3,396,727 | $105.3M | 0.05% | −15,110−0.4% | Reduced |
| Geode Capital Management, LLC | 3,069,378 | $95.1M | 0.01% | +195,681+6.8% | Added |
| Suvretta Capital Management, LLC | 2,684,487 | $83.2M | 3.80% | −761,847−22.1% | Reduced |
| Bank of New York Mellon Corp | 2,356,862 | $73.0M | 0.01% | −174,857−6.9% | Reduced |
| Loomis Sayles & Co L P | 2,331,505 | $72.3M | 0.11% | −51,534−2.2% | Reduced |
| Bellevue Group AG | 2,290,958 | $71.0M | 1.09% | −871,777−27.6% | Reduced |
| Ameriprise Financial Inc | 2,282,491 | $70.7M | 0.02% | +405,778+21.6% | Added |
| Alliancebernstein L.P. | 2,147,902 | $66.6M | 0.03% | −146,894−6.4% | Reduced |
| Pictet Asset Management Holding SA | 1,961,801 | $60.8M | 0.07% | −451,637−18.7% | Reduced |
| RTW Investments, LP | 1,865,108 | $57.8M | 0.90% | 00.0% | Unchanged |
| Holocene Advisors, LP | 1,614,862 | $50.0M | 0.20% | −193,626−10.7% | Reduced |
| Millennium Management LLC | 1,605,001 | $49.7M | 0.05% | −569,828−26.2% | Reduced |
| Morgan Stanley | 1,534,747 | $47.6M | 0.00% | +856,021+126.1% | Added |
| Norges Bank | 1,453,025 | $45.0M | 0.01% | +260,576+21.9% | Added |
| Marshall Wace, LLP | 1,439,769 | $44.6M | 0.09% | +874,006+154.5% | Added |
| Janus Henderson Group PLC | 1,403,091 | $43.5M | 0.03% | −511,711−26.7% | Reduced |
| Northern Trust Corp | 1,372,245 | $42.5M | 0.01% | +25,813+1.9% | Added |
| Principal Financial Group Inc | 1,359,563 | $42.1M | 0.03% | +69,281+5.4% | Added |
| Novo Holdings A/S | 1,339,304 | $41.5M | 2.77% | 00.0% | Unchanged |
| GW&K Investment Management, LLC | 1,291,772 | $40.0M | 0.37% | −60,497−4.5% | Reduced |
| Samlyn Capital, LLC | 1,286,868 | $39.9M | 0.87% | −94,189−6.8% | Reduced |
| Octagon Capital Advisors LP | 1,284,000 | $39.8M | 6.37% | 00.0% | Unchanged |
| Charles Schwab Investment Management Inc | 1,128,436 | $35.0M | 0.01% | +28,629+2.6% | Added |
| Citadel Advisors LLC | 1,046,214 | $32.4M | 0.03% | +466,832+80.6% | Added |
| Bank of America Corp | 1,043,831 | $32.3M | 0.00% | −165,195−13.7% | Reduced |
| Balyasny Asset Management LLC | 943,431 | $29.2M | 0.08% | +862,055+1,059.3% | Added |
| Emerald Advisers, LLC | 930,849 | $28.8M | 1.23% | −6,667−0.7% | Reduced |
| Hood River Capital Management LLC | 905,819 | $28.1M | 0.77% | +905,819 | New |
| Vestal Point Capital, LP | 900,000 | $27.9M | 2.95% | +900,000 | New |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 895,946 | $27.8M | 0.08% | +39,748+4.6% | Added |
| Goldman Sachs Group Inc | 761,772 | $23.6M | 0.01% | −101,746−11.8% | Reduced |
| Emerald Mutual Fund Advisers Trust | 748,344 | $23.2M | 1.23% | +3,611+0.5% | Added |
| FIL Ltd | 691,431 | $21.4M | 0.02% | −139,771−16.8% | Reduced |
| American Century Companies Inc | 662,200 | $20.5M | 0.01% | +47,674+7.8% | Added |
| D. E. Shaw & Co., Inc. | 646,907 | $20.0M | 0.03% | +450,180+228.8% | Added |
| First Light Asset Management, LLC | 646,057 | $20.0M | 1.61% | +2,469+0.4% | Added |
| Eventide Asset Management, LLC | 635,185 | $19.7M | 0.32% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 629,200 | $19.5M | 0.05% | −196,200−23.8% | Reduced |
| Adage Capital Partners GP, L.L.C. | 600,000 | $18.6M | 0.04% | 00.0% | Unchanged |
| Cormorant Asset Management, LP | 575,000 | $17.8M | 0.85% | 00.0% | Unchanged |
| Eagle Asset Management Inc | 548,633 | $17.0M | 0.09% | +29,555+5.7% | Added |
| MPM Oncology Impact Management LP | 528,150 | $16.4M | 3.83% | +692+0.1% | Added |
| Polar Capital Holdings Plc | 504,275 | $15.6M | 0.11% | −357,125−41.5% | Reduced |
| Voya Investment Management LLC | 504,237 | $15.6M | 0.02% | +7,344+1.5% | Added |
| Hudson Bay Capital Management LP | 467,500 | $14.5M | 0.13% | −380,000−44.8% | Reduced |
| TD Asset Management Inc | 463,532 | $14.4M | 0.01% | −59,600−11.4% | Reduced |
| Panagora Asset Management Inc | 429,003 | $13.3M | 0.07% | −3,576−0.8% | Reduced |
| Cutter Capital Management, LP | 413,499 | $12.8M | 6.13% | +413,499 | New |
| UBS Asset Management Americas Inc | 407,570 | $12.6M | 0.00% | +43,940+12.1% | Added |
| Kingdon Capital Management, L.L.C. | 405,000 | $12.6M | 2.39% | +405,000 | New |
| Putnam Investments LLC | 387,674 | $12.0M | 0.02% | +387,674 | New |
| JPMorgan Chase & Co | 382,494 | $11.9M | 0.00% | −25,471−6.2% | Reduced |
| Nuveen Asset Management, LLC | 377,215 | $11.7M | 0.00% | +28,449+8.2% | Added |
| Long Focus Capital Management, LLC | 371,649 | $11.5M | 1.49% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 352,612 | $10.9M | 0.03% | −241,548−40.7% | Reduced |
| AXA S.A. | 352,046 | $10.9M | 0.04% | −8,515−2.4% | Reduced |
| Integral Health Asset Management, LLC | 350,000 | $10.8M | 1.57% | +350,000 | New |
| C WorldWide Group Holding A/S | 343,110 | $10.6M | 0.14% | 00.0% | Unchanged |
| Baker Bros. Advisors LP | 343,000 | $10.6M | 0.12% | 00.0% | Unchanged |
| Summit Partners Public Asset Management, LLC | 338,491 | $10.5M | 0.57% | +338,491 | New |
| Barclays PLC | 334,529 | $10.4M | 0.01% | +162,728+94.7% | Added |
| Bleichroeder LP | 325,000 | $10.1M | 2.24% | 00.0% | Unchanged |
| Rafferty Asset Management, LLC | 321,087 | $9.95M | 0.04% | +47,563+17.4% | Added |
| Candriam Luxembourg S.C.A. | 310,200 | $9.61M | 0.07% | −15,000−4.6% | Reduced |
| WCM Investment Management, LLC | 295,328 | $9.37M | 0.03% | +5,592+1.9% | Added |
| UBS Group AG | 300,181 | $9.30M | 0.00% | +177,981+145.6% | Added |
| Scout Investments, Inc. | 293,197 | $9.09M | 0.23% | −4,600−1.5% | Reduced |
| Peregrine Capital Management LLC | 290,088 | $8.99M | 0.27% | −50,037−14.7% | Reduced |
| Assenagon Asset Management S.A. | 284,520 | $8.82M | 0.03% | +22,384+8.5% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 271,312 | $8.41M | 0.04% | −174,792−39.2% | Reduced |
| Swiss National Bank | 269,200 | $8.34M | 0.01% | −30,700−10.2% | Reduced |
| Knights of Columbus Asset Advisors LLC | 228,783 | $7.09M | 0.46% | +114,987+101.0% | Added |
| Great Point Partners LLC | 225,912 | $7.00M | 1.19% | −168,960−42.8% | Reduced |
| BNP Paribas Arbitrage, SA | 221,572 | $6.87M | 0.01% | +98,417+79.9% | Added |
| Rice Hall James & Associates, LLC | 221,270 | $6.86M | 0.40% | −3,195−1.4% | Reduced |
| Manufacturers Life Insurance Company, The | 212,035 | $6.57M | 0.00% | +2,931+1.4% | Added |
| Rhumbline Advisers | 203,696 | $6.31M | 0.01% | +6,053+3.1% | Added |
| Granahan Investment Management Inc | 202,193 | $6.27M | 0.21% | −33,787−14.3% | Reduced |
| California Public Employees Retirement System | 191,305 | $5.93M | 0.00% | −1,672−0.9% | Reduced |
| Cinctive Capital Management LP | 175,000 | $5.42M | 0.38% | +175,000 | New |
| Cubist Systematic Strategies, LLC | 174,695 | $5.41M | 0.07% | −95,151−35.3% | Reduced |
| StemPoint Capital LP | 173,579 | $5.38M | 1.45% | +173,579 | New |
| Neuberger Berman Group LLC | 168,928 | $5.24M | 0.00% | +59,424+54.3% | Added |
| Soleus Capital Management, L.P. | 167,100 | $5.18M | 0.57% | −50,900−23.3% | Reduced |
| Tang Capital Management LLC | 166,203 | $5.15M | 0.48% | 00.0% | Unchanged |
| Susquehanna Portfolio Strategies, LLC | 164,496 | $5.10M | 0.09% | +164,496 | New |
| Deutsche Bank AG | 164,232 | $5.09M | 0.00% | −1,733−1.0% | Reduced |
| Silverarc Capital Management, LLC | 155,504 | $4.82M | 1.49% | +5,117+3.4% | Added |
| Parkman Healthcare Partners LLC | 150,816 | $4.67M | 0.66% | +25,816+20.7% | Added |
| California State Teachers Retirement System | 144,431 | $4.48M | 0.01% | −5,303−3.5% | Reduced |