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 2025
Institutional positions in INSMED Inc as of Jun 30, 2025. 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
- 516
- +78 vs. Q1 2025
- Shares held
- 210.4M
- +10.8M (+5.4%) vs. Q1 2025
- Total value
- $21.2B
- +$5.90B (+38.7%) vs. Q1 2025
- New holders
- 130
- 166 more added
- Sold out
- 52
- 188 more reduced
4 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding INSMED Inc; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Darwin Global Management, Ltd. | 19,344,621 | $1.92B | 80.75% | +3,946,646+25.6% | Added |
| Vanguard Group Inc | 17,644,492 | $1.78B | 0.03% | −623,630−3.4% | Reduced |
| JPMorgan Chase & Co | 15,636,399 | $1.57B | 0.11% | +9,282,377+146.1% | Added |
| Price T Rowe Associates Inc | 11,230,705 | $1.13B | 0.13% | −1,692,836−13.1% | Reduced |
| BlackRock, Inc. | 11,142,432 | $1.12B | 0.02% | −4,906,450−30.6% | Reduced |
| Baker Bros. Advisors LP | 7,712,900 | $776.2M | 7.53% | +2,332,274+43.3% | Added |
| Capital International Investors | 7,478,859 | $752.7M | 0.13% | +280,374+3.9% | Added |
| FMR LLC | 5,093,261 | $512.6M | 0.03% | +1,698,877+50.0% | Added |
| State Street Corp | 4,277,888 | $430.5M | 0.02% | −1,469,405−25.6% | Reduced |
| D. E. Shaw & Co., Inc. | 3,422,619 | $344.5M | 0.34% | +2,687,739+365.7% | Added |
| Geode Capital Management, LLC | 3,340,707 | $336.3M | 0.02% | −948,028−22.1% | Reduced |
| Artisan Partners Limited Partnership | 3,314,341 | $333.6M | 0.50% | +97,073+3.0% | Added |
| RTW Investments, LP | 3,084,558 | $310.4M | 4.42% | +70,000+2.3% | Added |
| Ameriprise Financial Inc | 2,957,973 | $297.7M | 0.07% | +6,351+0.2% | Added |
| Adage Capital Partners GP, L.L.C. | 2,859,452 | $287.8M | 0.48% | −587,492−17.0% | Reduced |
| Franklin Resources Inc | 2,350,133 | $236.5M | 0.06% | +201,849+9.4% | Added |
| Janus Henderson Group PLC | 2,293,142 | $230.8M | 0.11% | +747,723+48.4% | Added |
| Duquesne Family Office LLCSuperinvestorDuquesne Family Office | 2,253,435 | $226.8M | 5.79% | +884,385+64.6% | Added |
| Millennium Management LLC | 2,121,717 | $213.5M | 0.19% | +1,442,526+212.4% | Added |
| Holocene Advisors, LP | 2,016,806 | $203.0M | 0.50% | −9,616−0.5% | Reduced |
| Norges Bank | 1,934,899 | $194.7M | 0.02% | +192,056+11.0% | Added |
| Invesco Ltd. | 1,896,333 | $190.8M | 0.03% | +105,009+5.9% | Added |
| Goldman Sachs Group Inc | 1,810,895 | $182.2M | 0.03% | +408,274+29.1% | Added |
| Deep Track Capital, LP | 1,750,000 | $176.1M | 5.66% | +1,495,249+586.9% | Added |
| William Blair Investment Management, LLC | 1,665,602 | $167.6M | 0.44% | −647,615−28.0% | Reduced |
| Integral Health Asset Management, LLC | 1,600,000 | $161.0M | 15.04% | +50,000+3.2% | Added |
| Pictet Asset Management Holding SA | 1,553,628 | $156.2M | 0.16% | −459,701−22.8% | Reduced |
| Lord, Abbett & Co. LLC | 1,545,859 | $155.6M | 0.50% | +195,272+14.5% | Added |
| Citadel Advisors LLC | 1,533,277 | $154.3M | 0.13% | +1,158,462+309.1% | Added |
| Orbis Allan Gray Ltd | 1,524,134 | $153.4M | 0.75% | +1,524,134 | New |
| Clearbridge Investments, LLC | 1,424,562 | $143.4M | 0.12% | −404,166−22.1% | Reduced |
| Jane Street Group, LLC | 1,352,922 | $136.2M | 0.22% | +1,228,335+985.9% | Added |
| Principal Financial Group Inc | 1,348,027 | $135.7M | 0.07% | −407,346−23.2% | Reduced |
| Alliancebernstein L.P. | 1,343,212 | $135.2M | 0.04% | −1,080,301−44.6% | Reduced |
| Westfield Capital Management Co LP | 1,339,288 | $134.8M | 0.57% | −67,321−4.8% | Reduced |
| Charles Schwab Investment Management Inc | 1,299,568 | $130.8M | 0.02% | −303,087−18.9% | Reduced |
| GW&K Investment Management, LLC | 1,274,316 | $128.2M | 1.15% | −103,410−7.5% | Reduced |
| Bank of America Corp | 1,226,737 | $123.5M | 0.01% | −126,262−9.3% | Reduced |
| Bank of New York Mellon Corp | 1,197,473 | $120.5M | 0.02% | +40,723+3.5% | Added |
| Eventide Asset Management, LLC | 1,196,494 | $120.4M | 2.11% | +14,819+1.3% | Added |
| FIL Ltd | 1,165,464 | $117.3M | 0.10% | −1,224,737−51.2% | Reduced |
| Wellington Management Group LLP | 1,159,699 | $116.7M | 0.02% | −62,928−5.1% | Reduced |
| Macquarie Group Ltd | 1,130,923 | $113.8M | 0.14% | −1,231,182−52.1% | Reduced |
| Marshall Wace, LLP | 1,113,361 | $112.0M | 0.13% | +417,124+59.9% | Added |
| Qube Research & Technologies Ltd | 1,082,050 | $108.9M | 0.15% | +1,082,050 | New |
| Morgan Stanley | 1,043,791 | $105.0M | 0.01% | −15,865−1.5% | Reduced |
| Summit Partners Public Asset Management, LLC | 1,008,937 | $101.5M | 3.96% | +304,571+43.2% | Added |
| Northern Trust Corp | 969,800 | $97.6M | 0.01% | −714,038−42.4% | Reduced |
| Hood River Capital Management LLC | 899,603 | $90.5M | 1.26% | −658,683−42.3% | Reduced |
| TimesSquare Capital Management, LLC | 873,491 | $87.9M | 1.27% | −190,657−17.9% | Reduced |
| Palo Alto Investors LP | 865,113 | $87.1M | 18.52% | −122,040−12.4% | Reduced |
| Maverick Capital LtdSuperinvestorMaverick Capital | 804,133 | $80.9M | 1.24% | +379,008+89.2% | Added |
| Loomis Sayles & Co L P | 793,569 | $79.9M | 0.10% | −215,897−21.4% | Reduced |
| Raymond James Financial Inc | 784,551 | $79.0M | 0.03% | +375,614+91.9% | Added |
| BNP Paribas Arbitrage, SA | 754,160 | $75.9M | 0.06% | +292,497+63.4% | Added |
| Artia Global Partners LP | 752,712 | $75.8M | 19.48% | +434,473+136.5% | Added |
| Fiera Capital Corp | 748,037 | $75.3M | 0.26% | +168,800+29.1% | Added |
| HRT Financial LP | 729,597 | $73.4M | 0.32% | +729,597 | New |
| Nwi Management LP | 720,000 | $72.5M | 6.65% | +270,000+60.0% | Added |
| Jennison Associates LLC | 715,606 | $72.0M | 0.04% | −32,707−4.4% | Reduced |
| Deerfield Management Company, L.P. (Series C) | 700,700 | $70.5M | 1.28% | +242,700+53.0% | Added |
| Polar Capital Holdings Plc | 697,960 | $70.2M | 0.37% | −30,795−4.2% | Reduced |
| UBS Asset Management Americas Inc | 695,961 | $70.0M | 0.01% | +156,477+29.0% | Added |
| Novo Holdings A/S | 680,000 | $68.4M | 4.83% | −44,666−6.2% | Reduced |
| Perceptive Advisors LLC | 650,252 | $65.4M | 2.46% | +140,952+27.7% | Added |
| Alyeska Investment Group, L.P. | 603,702 | $60.8M | 0.22% | −131,298−17.9% | Reduced |
| Nuveen, LLC | 588,987 | $59.3M | 0.02% | −569,107−49.1% | Reduced |
| Brown Advisory Inc | 579,846 | $58.4M | 0.08% | −92,604−13.8% | Reduced |
| Ensign Peak Advisors, Inc | 564,389 | $56.8M | 0.10% | −25,010−4.2% | Reduced |
| Cormorant Asset Management, LP | 540,000 | $54.3M | 4.05% | +15,000+2.9% | Added |
| Rock Springs Capital Management LP | 525,000 | $52.8M | 3.29% | +9,100+1.8% | Added |
| Long Focus Capital Management, LLC | 520,200 | $52.4M | 3.38% | −110,600−17.5% | Reduced |
| Alkeon Capital Management LLC | 500,000 | $50.3M | 0.24% | +500,000 | New |
| Point72 Asset Management, L.P. | 490,667 | $49.4M | 0.12% | +490,667 | New |
| Affinity Asset Advisors, LLC | 475,000 | $47.8M | 7.07% | +335,000+239.3% | Added |
| Castle Hook Partners LP | 452,656 | $45.6M | 0.67% | +452,656 | New |
| Candriam Luxembourg S.C.A. | 438,688 | $44.2M | 0.25% | −16,720−3.7% | Reduced |
| SEI Investments Co | 433,628 | $43.6M | 0.05% | +37,649+9.5% | Added |
| Eagle Health Investments LP | 428,600 | $43.1M | 10.65% | −14,700−3.3% | Reduced |
| Royal Bank of Canada | 427,801 | $43.1M | 0.01% | +182,539+74.4% | Added |
| New York State Common Retirement Fund | 427,753 | $43.0M | 0.06% | +72,031+20.2% | Added |
| Dimensional Fund Advisors LP | 411,744 | $41.4M | 0.01% | +39,744+10.7% | Added |
| Voya Investment Management LLC | 407,679 | $41.0M | 0.04% | −177,749−30.4% | Reduced |
| TD Asset Management Inc | 395,194 | $39.8M | 0.03% | −107,038−21.3% | Reduced |
| Two Sigma Investments, LP | 376,508 | $37.9M | 0.07% | −30,395−7.5% | Reduced |
| First Turn Management, LLC | 372,672 | $37.5M | 7.00% | −28,957−7.2% | Reduced |
| Envestnet Asset Management Inc | 365,827 | $36.8M | 0.01% | +40,520+12.5% | Added |
| Patient Square Capital LP | 358,800 | $36.1M | 13.02% | +28,550+8.6% | Added |
| Swiss National Bank | 347,400 | $35.0M | 0.02% | +18,100+5.5% | Added |
| Weiss Asset Management LP | 339,825 | $34.2M | 0.54% | +339,825 | New |
| Los Angeles Capital Management LLC | 330,800 | $33.3M | 0.12% | +318,716+2,637.5% | Added |
| Sofinnova Investments, Inc. | 313,923 | $31.6M | 2.15% | +9,669+3.2% | Added |
| Voloridge Investment Management, LLC | 313,053 | $31.5M | 0.12% | +310,376+11,594.2% | Added |
| Standard Life Aberdeen plc | 309,749 | $31.2M | 0.05% | −26,608−7.9% | Reduced |
| Renaissance Technologies LLC | 308,687 | $31.1M | 0.04% | +308,687 | New |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 302,065 | $30.4M | 0.07% | −311,204−50.7% | Reduced |
| Allspring Global Investments Holdings, LLC | 304,310 | $29.7M | 0.05% | −134,364−30.6% | Reduced |
| UBS Group AG | 293,454 | $29.5M | 0.01% | −184,182−38.6% | Reduced |
| Cubist Systematic Strategies, LLC | 283,102 | $28.5M | 0.31% | +283,102 | New |
| C WorldWide Group Holding A/S | 271,110 | $27.3M | 0.37% | −50,000−15.6% | Reduced |