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 |
|---|---|---|---|---|---|
| Rhumbline Advisers | 208,345 | $21.0M | 0.02% | −95,212−31.4% | Reduced |
| Squarepoint Ops LLC | 210,647 | $21.2M | 0.05% | +210,647 | New |
| Caption Management, LLC | 210,928 | $21.2M | 1.94% | +210,928 | New |
| Susquehanna International Group, LLP | 212,222 | $21.4M | 0.03% | −236,392−52.7% | Reduced |
| California Public Employees Retirement System | 222,236 | $22.4M | 0.01% | −43,241−16.3% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 224,302 | $22.6M | 0.55% | +224,302 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 226,142 | $22.8M | 0.08% | +210,999+1,393.4% | Added |
| Manufacturers Life Insurance Company, The | 226,265 | $22.8M | 0.02% | −92,127−28.9% | Reduced |
| AXA S.A. | 226,603 | $22.8M | 0.07% | +22,746+11.2% | Added |
| Comerica Bank | 232,399 | $23.4M | 0.09% | −57,876−19.9% | Reduced |
| Russell Investments Group, Ltd. | 234,617 | $23.6M | 0.03% | −68,379−22.6% | Reduced |
| Suvretta Capital Management, LLC | 238,783 | $24.0M | 0.91% | −1,253,600−84.0% | Reduced |
| Woodline Partners LP | 248,921 | $25.1M | 0.13% | +151+0.1% | Added |
| Silverarc Capital Management, LLC | 249,060 | $25.1M | 5.13% | −72,306−22.5% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 250,100 | $25.2M | 0.05% | +250,100 | New |
| Wells Fargo & Company | 259,207 | $26.1M | 0.01% | +53,696+26.1% | Added |
| C WorldWide Group Holding A/S | 271,110 | $27.3M | 0.37% | −50,000−15.6% | Reduced |
| Cubist Systematic Strategies, LLC | 283,102 | $28.5M | 0.31% | +283,102 | New |
| UBS Group AG | 293,454 | $29.5M | 0.01% | −184,182−38.6% | Reduced |
| Allspring Global Investments Holdings, LLC | 304,310 | $29.7M | 0.05% | −134,364−30.6% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 302,065 | $30.4M | 0.07% | −311,204−50.7% | Reduced |
| Renaissance Technologies LLC | 308,687 | $31.1M | 0.04% | +308,687 | New |
| Standard Life Aberdeen plc | 309,749 | $31.2M | 0.05% | −26,608−7.9% | Reduced |
| Voloridge Investment Management, LLC | 313,053 | $31.5M | 0.12% | +310,376+11,594.2% | Added |
| Sofinnova Investments, Inc. | 313,923 | $31.6M | 2.15% | +9,669+3.2% | Added |
| Los Angeles Capital Management LLC | 330,800 | $33.3M | 0.12% | +318,716+2,637.5% | Added |
| Weiss Asset Management LP | 339,825 | $34.2M | 0.54% | +339,825 | New |
| Swiss National Bank | 347,400 | $35.0M | 0.02% | +18,100+5.5% | Added |
| Patient Square Capital LP | 358,800 | $36.1M | 13.02% | +28,550+8.6% | Added |
| Envestnet Asset Management Inc | 365,827 | $36.8M | 0.01% | +40,520+12.5% | Added |
| First Turn Management, LLC | 372,672 | $37.5M | 7.00% | −28,957−7.2% | Reduced |
| Two Sigma Investments, LP | 376,508 | $37.9M | 0.07% | −30,395−7.5% | Reduced |
| TD Asset Management Inc | 395,194 | $39.8M | 0.03% | −107,038−21.3% | Reduced |
| Voya Investment Management LLC | 407,679 | $41.0M | 0.04% | −177,749−30.4% | Reduced |
| Dimensional Fund Advisors LP | 411,744 | $41.4M | 0.01% | +39,744+10.7% | Added |
| New York State Common Retirement Fund | 427,753 | $43.0M | 0.06% | +72,031+20.2% | Added |
| Royal Bank of Canada | 427,801 | $43.1M | 0.01% | +182,539+74.4% | Added |
| Eagle Health Investments LP | 428,600 | $43.1M | 10.65% | −14,700−3.3% | Reduced |
| SEI Investments Co | 433,628 | $43.6M | 0.05% | +37,649+9.5% | Added |
| Candriam Luxembourg S.C.A. | 438,688 | $44.2M | 0.25% | −16,720−3.7% | Reduced |
| Castle Hook Partners LP | 452,656 | $45.6M | 0.67% | +452,656 | New |
| Affinity Asset Advisors, LLC | 475,000 | $47.8M | 7.07% | +335,000+239.3% | Added |
| Point72 Asset Management, L.P. | 490,667 | $49.4M | 0.12% | +490,667 | New |
| Alkeon Capital Management LLC | 500,000 | $50.3M | 0.24% | +500,000 | New |
| Long Focus Capital Management, LLC | 520,200 | $52.4M | 3.38% | −110,600−17.5% | Reduced |
| Rock Springs Capital Management LP | 525,000 | $52.8M | 3.29% | +9,100+1.8% | Added |
| Cormorant Asset Management, LP | 540,000 | $54.3M | 4.05% | +15,000+2.9% | Added |
| Ensign Peak Advisors, Inc | 564,389 | $56.8M | 0.10% | −25,010−4.2% | Reduced |
| Brown Advisory Inc | 579,846 | $58.4M | 0.08% | −92,604−13.8% | Reduced |
| Nuveen, LLC | 588,987 | $59.3M | 0.02% | −569,107−49.1% | Reduced |
| Alyeska Investment Group, L.P. | 603,702 | $60.8M | 0.22% | −131,298−17.9% | Reduced |
| Perceptive Advisors LLC | 650,252 | $65.4M | 2.46% | +140,952+27.7% | Added |
| Novo Holdings A/S | 680,000 | $68.4M | 4.83% | −44,666−6.2% | Reduced |
| UBS Asset Management Americas Inc | 695,961 | $70.0M | 0.01% | +156,477+29.0% | Added |
| Polar Capital Holdings Plc | 697,960 | $70.2M | 0.37% | −30,795−4.2% | Reduced |
| Deerfield Management Company, L.P. (Series C) | 700,700 | $70.5M | 1.28% | +242,700+53.0% | Added |
| Jennison Associates LLC | 715,606 | $72.0M | 0.04% | −32,707−4.4% | Reduced |
| Nwi Management LP | 720,000 | $72.5M | 6.65% | +270,000+60.0% | Added |
| HRT Financial LP | 729,597 | $73.4M | 0.32% | +729,597 | New |
| Fiera Capital Corp | 748,037 | $75.3M | 0.26% | +168,800+29.1% | Added |
| Artia Global Partners LP | 752,712 | $75.8M | 19.48% | +434,473+136.5% | Added |
| BNP Paribas Arbitrage, SA | 754,160 | $75.9M | 0.06% | +292,497+63.4% | Added |
| Raymond James Financial Inc | 784,551 | $79.0M | 0.03% | +375,614+91.9% | Added |
| Loomis Sayles & Co L P | 793,569 | $79.9M | 0.10% | −215,897−21.4% | Reduced |
| Maverick Capital LtdSuperinvestorMaverick Capital | 804,133 | $80.9M | 1.24% | +379,008+89.2% | Added |
| Palo Alto Investors LP | 865,113 | $87.1M | 18.52% | −122,040−12.4% | Reduced |
| TimesSquare Capital Management, LLC | 873,491 | $87.9M | 1.27% | −190,657−17.9% | Reduced |
| Hood River Capital Management LLC | 899,603 | $90.5M | 1.26% | −658,683−42.3% | Reduced |
| Northern Trust Corp | 969,800 | $97.6M | 0.01% | −714,038−42.4% | Reduced |
| Summit Partners Public Asset Management, LLC | 1,008,937 | $101.5M | 3.96% | +304,571+43.2% | Added |
| Morgan Stanley | 1,043,791 | $105.0M | 0.01% | −15,865−1.5% | Reduced |
| Qube Research & Technologies Ltd | 1,082,050 | $108.9M | 0.15% | +1,082,050 | New |
| Marshall Wace, LLP | 1,113,361 | $112.0M | 0.13% | +417,124+59.9% | Added |
| Macquarie Group Ltd | 1,130,923 | $113.8M | 0.14% | −1,231,182−52.1% | Reduced |
| Wellington Management Group LLP | 1,159,699 | $116.7M | 0.02% | −62,928−5.1% | Reduced |
| FIL Ltd | 1,165,464 | $117.3M | 0.10% | −1,224,737−51.2% | Reduced |
| Eventide Asset Management, LLC | 1,196,494 | $120.4M | 2.11% | +14,819+1.3% | Added |
| Bank of New York Mellon Corp | 1,197,473 | $120.5M | 0.02% | +40,723+3.5% | Added |
| Bank of America Corp | 1,226,737 | $123.5M | 0.01% | −126,262−9.3% | Reduced |
| GW&K Investment Management, LLC | 1,274,316 | $128.2M | 1.15% | −103,410−7.5% | Reduced |
| Charles Schwab Investment Management Inc | 1,299,568 | $130.8M | 0.02% | −303,087−18.9% | Reduced |
| Westfield Capital Management Co LP | 1,339,288 | $134.8M | 0.57% | −67,321−4.8% | Reduced |
| Alliancebernstein L.P. | 1,343,212 | $135.2M | 0.04% | −1,080,301−44.6% | Reduced |
| Principal Financial Group Inc | 1,348,027 | $135.7M | 0.07% | −407,346−23.2% | Reduced |
| Jane Street Group, LLC | 1,352,922 | $136.2M | 0.22% | +1,228,335+985.9% | Added |
| Clearbridge Investments, LLC | 1,424,562 | $143.4M | 0.12% | −404,166−22.1% | Reduced |
| Orbis Allan Gray Ltd | 1,524,134 | $153.4M | 0.75% | +1,524,134 | New |
| Citadel Advisors LLC | 1,533,277 | $154.3M | 0.13% | +1,158,462+309.1% | Added |
| Lord, Abbett & Co. LLC | 1,545,859 | $155.6M | 0.50% | +195,272+14.5% | Added |
| Pictet Asset Management Holding SA | 1,553,628 | $156.2M | 0.16% | −459,701−22.8% | Reduced |
| Integral Health Asset Management, LLC | 1,600,000 | $161.0M | 15.04% | +50,000+3.2% | Added |
| William Blair Investment Management, LLC | 1,665,602 | $167.6M | 0.44% | −647,615−28.0% | Reduced |
| Deep Track Capital, LP | 1,750,000 | $176.1M | 5.66% | +1,495,249+586.9% | Added |
| Goldman Sachs Group Inc | 1,810,895 | $182.2M | 0.03% | +408,274+29.1% | Added |
| Invesco Ltd. | 1,896,333 | $190.8M | 0.03% | +105,009+5.9% | Added |
| Norges Bank | 1,934,899 | $194.7M | 0.02% | +192,056+11.0% | Added |
| Holocene Advisors, LP | 2,016,806 | $203.0M | 0.50% | −9,616−0.5% | Reduced |
| Millennium Management LLC | 2,121,717 | $213.5M | 0.19% | +1,442,526+212.4% | Added |
| Duquesne Family Office LLCSuperinvestorDuquesne Family Office | 2,253,435 | $226.8M | 5.79% | +884,385+64.6% | Added |
| Janus Henderson Group PLC | 2,293,142 | $230.8M | 0.11% | +747,723+48.4% | Added |