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 $23.9B 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
- 224.0M
- +2.45M (+1.1%) vs. Q1 2026
- Total value
- $23.9B
- −$11.9B (−33.3%) vs. Q1 2026
- New holders
- 119
- 247 more added
- Sold out
- 122
- 232 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 | $23.9B |
| Q1 2026 | 675 | $35.9B |
| Q4 2025 | 678 | $38.0B |
| Q3 2025 | 566 | $33.8B |
| Q2 2025 | 516 | $21.3B |
| Q1 2025 | 442 | $15.4B |
| Q4 2024 | 439 | $13.3B |
| Q3 2024 | 414 | $14.0B |
| Q2 2024 | 378 | $12.0B |
| Q1 2024 | 288 | $4.13B |
| Q4 2023 | 271 | $4.72B |
| Q3 2023 | 252 | $3.74B |
| Q2 2023 | 223 | $3.09B |
| Q1 2023 | 230 | $2.56B |
| Q4 2022 | 225 | $2.87B |
| Q3 2022 | 238 | $2.83B |
| Q2 2022 | 214 | $2.56B |
| Q1 2022 | 224 | $3.01B |
| Q4 2021 | 214 | $3.37B |
| Q3 2021 | 193 | $3.40B |
| Q2 2021 | 203 | $3.47B |
| 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 |
|---|---|---|---|---|---|
| FMR LLC | 16,143,583 | $1.72B | 0.07% | +2,983,416+22.7% | Added |
| BlackRock, Inc. | 15,807,984 | $1.69B | 0.03% | −870,162−5.2% | Reduced |
| Vanguard Portfolio Management LLC | 10,407,962 | $1.11B | 0.05% | +36,160+0.3% | Added |
| JPMorgan Chase & Co | 10,428,170 | $1.09B | 0.06% | −13,722,329−56.8% | Reduced |
| Vanguard Capital Management LLC | 9,790,865 | $1.04B | 0.02% | +148,734+1.5% | Added |
| Baker Bros. Advisors LP | 8,796,111 | $937.8M | 4.70% | +1,375,000+18.5% | Added |
| Capital International Investors | 8,238,124 | $878.3M | 0.18% | +2,642,930+47.2% | Added |
| Darwin Global Management, Ltd. | 6,431,163 | $673.6M | 17.91% | −10,374,021−61.7% | Reduced |
| Ameriprise Financial Inc | 6,179,571 | $658.9M | 0.13% | +3,121,853+102.1% | Added |
| Orbis Allan Gray Ltd | 6,076,487 | $647.9M | 2.23% | +4,203,663+224.5% | Added |
| State Street Corp | 6,052,174 | $645.3M | 0.02% | +500,475+9.0% | Added |
| D. E. Shaw & Co., Inc. | 5,877,959 | $626.7M | 0.39% | +252,134+4.5% | Added |
| Artisan Partners Limited Partnership | 5,441,718 | $580.2M | 0.95% | −1,085,583−16.6% | Reduced |
| RTW Investments, LP | 4,842,880 | $516.3M | 4.41% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 4,220,155 | $448.8M | 0.02% | −230,234−5.2% | Reduced |
| Price T Rowe Associates Inc | 3,405,290 | $363.1M | 0.04% | +312,483+10.1% | Added |
| Norges Bank | 3,377,641 | $360.1M | 0.04% | +3,377,641 | New |
| Jupiter Topco LLC | 2,605,181 | $277.8M | 0.11% | +2,605,181 | New |
| UBS Group AG | 2,584,446 | $275.6M | 0.04% | +846,965+48.7% | Added |
| Citadel Advisors LLC | 2,556,973 | $272.6M | 0.16% | +374,402+17.2% | Added |
| Franklin Resources Inc | 2,273,222 | $242.4M | 0.05% | −344,029−13.1% | Reduced |
| Maverick Capital LtdSuperinvestorMaverick Capital | 2,150,762 | $229.3M | 2.07% | +2,150,762 | New |
| Millennium Management LLC | 2,048,005 | $218.4M | 0.15% | +890,219+76.9% | Added |
| Qube Research & Technologies Ltd | 1,682,334 | $179.4M | 0.20% | +1,533,819+1,032.8% | Added |
| Westfield Capital Management Co LP | 1,629,561 | $173.7M | 0.57% | +161,102+11.0% | Added |
| T. Rowe Price Investment Management, Inc. | 1,622,675 | $173.0M | 0.11% | +1,622,675 | New |
| Integral Health Asset Management, LLC | 1,600,000 | $170.6M | 7.00% | +100,000+6.7% | Added |
| Duquesne Family Office LLCSuperinvestorDuquesne Family Office | 1,424,690 | $151.9M | 3.49% | +270,600+23.4% | Added |
| Goldman Sachs Group Inc | 1,409,885 | $150.3M | 0.02% | +467,239+49.6% | Added |
| Vanguard Fiduciary Trust Co | 1,401,552 | $149.4M | 0.03% | +47,036+3.5% | Added |
| Bellevue Group AG | 1,393,418 | $148.6M | 3.13% | +1,383,384+13,787.0% | Added |
| UBS Asset Management Americas Inc | 1,335,071 | $142.3M | 0.03% | +120,046+9.9% | Added |
| Balyasny Asset Management LLC | 1,326,430 | $141.4M | 0.26% | +1,104,723+498.3% | Added |
| Paradigm Biocapital Advisors LP | 1,325,977 | $141.4M | 2.65% | +71,489+5.7% | Added |
| Northern Trust Corp | 1,315,325 | $140.2M | 0.02% | +21,325+1.6% | Added |
| Bank of New York Mellon Corp | 1,312,756 | $140.0M | 0.02% | +50,007+4.0% | Added |
| Two Sigma Investments, LP | 1,242,222 | $132.4M | 0.10% | +1,005,205+424.1% | Added |
| Morgan Stanley | 1,233,498 | $131.5M | 0.01% | −98,044−7.4% | Reduced |
| Pictet Asset Management Holding SA | 1,220,353 | $129.8M | 0.12% | +118,105+10.7% | Added |
| Charles Schwab Investment Management Inc | 1,213,963 | $129.4M | 0.02% | +144,573+13.5% | Added |
| Hood River Capital Management LLC | 1,056,871 | $112.7M | 0.82% | +368,317+53.5% | Added |
| Bank of America Corp | 1,023,114 | $109.1M | 0.01% | −479,167−31.9% | Reduced |
| SEI Investments Co | 1,015,870 | $108.3M | 0.10% | −379,924−27.2% | Reduced |
| Nwi Management LP | 1,014,000 | $108.1M | 6.91% | −1,014,000−50.0% | Reduced |
| Castle Hook Partners LP | 993,310 | $105.9M | 1.13% | −276,444−21.8% | Reduced |
| Jennison Associates LLC | 905,094 | $96.5M | 0.06% | +300,400+49.7% | Added |
| Polar Capital Holdings Plc | 890,872 | $95.0M | 0.27% | +522,765+142.0% | Added |
| FIL Ltd | 856,214 | $91.3M | 0.07% | +27,267+3.3% | Added |
| Principal Financial Group Inc | 856,126 | $91.3M | 0.04% | −60,338−6.6% | Reduced |
| Adage Capital Partners GP, L.L.C. | 850,000 | $90.6M | 0.13% | −50,000−5.6% | Reduced |
| Fiera Capital Corp | 843,042 | $89.9M | 0.33% | −178,928−17.5% | Reduced |
| Legal & General Group Plc | 826,431 | $88.1M | 0.02% | +39,352+5.0% | Added |
| Frontier Capital Management Co LLC | 795,242 | $84.8M | 0.79% | +325,681+69.4% | Added |
| American Century Companies Inc | 759,735 | $81.0M | 0.04% | −166,064−17.9% | Reduced |
| Samlyn Capital, LLC | 732,568 | $78.1M | 1.29% | +315,363+75.6% | Added |
| Susquehanna International Group, LLP | 729,354 | $77.8M | 0.07% | +555,724+320.1% | Added |
| TimesSquare Capital Management, LLC | 728,096 | $77.6M | 1.14% | +143,298+24.5% | Added |
| Clearbridge Investments, LLC | 715,922 | $76.3M | 0.06% | +72,487+11.3% | Added |
| Alliancebernstein L.P. | 462,796 | $75.7M | 0.03% | −225,938−32.8% | Reduced |
| Ensign Peak Advisors, Inc | 702,951 | $74.9M | 0.12% | +203,195+40.7% | Added |
| Deutsche Bank AG | 690,590 | $73.6M | 0.02% | +128,116+22.8% | Added |
| HRT Financial LP | 689,981 | $73.6M | 0.13% | +689,981 | New |
| Raymond James Financial Inc | 660,601 | $70.4M | 0.02% | −114,547−14.8% | Reduced |
| Affinity Asset Advisors, LLC | 650,000 | $69.3M | 3.39% | +170,000+35.4% | Added |
| William Blair Investment Management, LLC | 629,831 | $67.2M | 0.20% | −272,835−30.2% | Reduced |
| GW&K Investment Management, LLC | 629,760 | $67.1M | 0.52% | +6,712+1.1% | Added |
| Squarepoint Ops LLC | 616,464 | $65.7M | 0.13% | +577,148+1,468.0% | Added |
| AQR Capital Management LLC | 612,832 | $65.3M | 0.02% | −62,653−9.3% | Reduced |
| Railway Pension Investments Ltd | 604,700 | $64.5M | 0.81% | +604,700 | New |
| Swiss National Bank | 593,512 | $63.3M | 0.03% | −32,400−5.2% | Reduced |
| Nuveen, LLC | 591,844 | $63.1M | 0.02% | +57,094+10.7% | Added |
| Artia Global Partners LP | 589,052 | $62.8M | 11.94% | −39,660−6.3% | Reduced |
| Eventide Asset Management, LLC | 583,665 | $62.2M | 0.83% | +37,355+6.8% | Added |
| Standard Life Aberdeen plc | 577,437 | $61.6M | 0.09% | +300,421+108.4% | Added |
| Davern Capital Partners, LP | 559,824 | $59.7M | 10.18% | +377,262+206.6% | Added |
| Candriam Luxembourg S.C.A. | 555,131 | $59.1M | 0.27% | +153,396+38.2% | Added |
| Wellington Management Group LLP | 543,893 | $58.0M | 0.01% | +144,849+36.3% | Added |
| Point72 Asset Management, L.P. | 536,997 | $57.3M | 0.09% | +536,997 | New |
| Long Focus Capital Management, LLC | 528,000 | $56.3M | 2.30% | +383,000+264.1% | Added |
| Marshall Wace, LLP | 501,930 | $53.5M | 0.05% | +189,365+60.6% | Added |
| Amundi | 487,525 | $52.0M | 0.01% | −317,452−39.4% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 475,307 | $50.7M | 0.05% | +7,554+1.6% | Added |
| Bridgewater Associates, LP | 455,392 | $48.6M | 0.20% | +159,813+54.1% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 437,713 | $46.7M | 0.03% | −63,569−12.7% | Reduced |
| Assenagon Asset Management S.A. | 436,540 | $46.5M | 0.03% | +373,281+590.1% | Added |
| Royal Bank of Canada | 416,487 | $44.4M | 0.01% | −106,614−20.4% | Reduced |
| Vanguard Asset Management, Ltd | 416,108 | $44.4M | 0.03% | +56,033+15.6% | Added |
| Palo Alto Investors LP | 413,980 | $44.1M | 6.10% | −1,289−0.3% | Reduced |
| Dimensional Fund Advisors LP | 408,388 | $43.5M | 0.01% | +7,488+1.9% | Added |
| BNP Paribas Arbitrage, SA | 400,765 | $42.7M | 0.02% | −203,835−33.7% | Reduced |
| Eagle Health Investments LP | 384,130 | $41.0M | 6.79% | +159,859+71.3% | Added |
| Neuberger Berman Group LLC | 378,816 | $40.4M | 0.03% | +108,116+39.9% | Added |
| Prosight Management, LP | 375,609 | $40.0M | 6.90% | +375,609 | New |
| Invesco Ltd. | 368,261 | $39.3M | 0.00% | −6,144,628−94.3% | Reduced |
| Gateway Investment Advisers LLC | 365,000 | $38.9M | 0.38% | 00.0% | Unchanged |
| Rock Springs Capital Management LP | 362,150 | $38.6M | 1.88% | +47,850+15.2% | Added |
| Envestnet Asset Management Inc | 336,997 | $35.9M | 0.01% | +37,072+12.4% | Added |
| Victory Capital Management Inc | 306,651 | $32.7M | 0.02% | −89,594−22.6% | Reduced |
| California State Teachers Retirement System | 304,798 | $32.5M | 0.03% | +1,616+0.5% | Added |
| New York State Common Retirement Fund | 304,236 | $32.4M | 0.04% | +10,690+3.6% | Added |