InsmedINSM
13F holders, Q2 2026 (June 30)667holders −8
111new positions
121sold out
11famous investors
$106.59avg. 13F price*
At the end of Q2 2026, 667 institutions reported holding Insmed Inc. (INSM) in their 13F filings, down 8 from Q1 2026. 111 opened new positions and 121 sold out. The largest holders were FMR LLC ($1.7B), BlackRock, Inc. ($1.7B) and Vanguard Portfolio Management LLC ($1.1B). 11 famous investors held it, including Stanley Druckenmiller (3.5% of Duquesne Family Office's portfolio), Lee Ainslie (2.1% of Maverick Capital's portfolio) and David E. Shaw (0.4% of D. E. Shaw & Co.'s portfolio).
- Company
- Insmed Inc.
- CUSIP
- 457669307
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 111 | $1.0B |
| Exits | 121 | $737.5M |
All 13F filers, Q1 2026 → Q2 2026: 43,412,128 shares bought and 46,324,742 shares sold, net −2,912,614 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 667 holders
| FMR LLC | 0.07% | Add +22.7% | 16,143,583 | $1.7B |
| BlackRock, Inc. | 0.03% | Reduce -5.2% | 15,807,984 | $1.7B |
| Vanguard Portfolio Management LLC | 0.05% | Add +0.3% | 10,407,962 | $1.1B |
| JPMorgan Chase & Co. | 0.06% | Reduce -56.8% | 10,428,170 | $1.1B |
| Vanguard Capital Management LLC | 0.02% | Add +1.5% | 9,790,865 | $1.0B |
| Baker Bros. Advisors LP | 4.72% | Add +18.5% | 8,796,111 | $937.8M |
| Capital International Investors | 0.18% | Add +47.2% | 8,238,124 | $878.3M |
| Darwin Global Management, Ltd. | 17.91% | Reduce -61.7% | 6,431,163 | $673.6M |
| Ameriprise Financial Inc. | 0.13% | Add +102.1% | 6,179,571 | $658.9M |
| Orbis Allan Gray Ltd | 2.23% | Add +224.5% | 6,076,487 | $647.9M |
| State Street Corp. | 0.02% | Add +9.0% | 6,052,174 | $645.3M |
| D. E. Shaw & Co. | 0.41% | Add +4.5% | 5,877,959 | $626.7M |
| Artisan Partners Limited Partnership | 0.95% | Reduce -16.6% | 5,441,718 | $580.2M |
| RTW Investments, LP | 4.41% | No change | 4,842,880 | $516.3M |
| Geode Capital Management, LLC | 0.02% | Reduce -5.2% | 4,220,155 | $448.8M |
| T. Rowe Price Associates Inc. | 0.04% | Add +10.1% | 3,405,290 | $363.1M |
| Norges Bank | 0.04% | — | 3,377,641 | $360.1M |
| Jupiter Topco LLC | 0.11% | — | 2,605,181 | $277.8M |
| UBS Group AG | 0.04% | Add +48.8% | 2,584,446 | $275.6M |
| Citadel Advisors | 0.16% | Add +17.1% | 2,556,973 | $272.6M |
| Franklin Resources Inc. | 0.05% | Reduce -13.1% | 2,273,222 | $242.4M |
| Maverick Capital | 2.07% | New | 2,150,762 | $229.3M |
| Millennium Management | 0.15% | Add +76.9% | 2,048,005 | $218.4M |
| Qube Research & Technologies Ltd | 0.20% | Add +1032.8% | 1,682,334 | $179.4M |
| Westfield Capital Management Co. LP | 0.57% | Add +11.0% | 1,629,561 | $173.7M |
| T. Rowe Price Investment Management, Inc. | 0.11% | New | 1,622,675 | $173.0M |
| Integral Health Asset Management, LLC | 7.00% | Add +6.7% | 1,600,000 | $170.6M |
| Duquesne Family Office | 3.49% | Add +23.4% | 1,424,690 | $151.9M |
| Goldman Sachs Group Inc. | 0.02% | Add +49.6% | 1,409,885 | $150.3M |
| Vanguard Fiduciary Trust Co. | 0.03% | Add +3.5% | 1,401,552 | $149.4M |
| Bellevue Group AG | 3.13% | Add +13787.0% | 1,393,418 | $148.6M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.03% | Add +9.9% | 1,335,071 | $142.3M |
| Balyasny Asset Management L.P. | 0.27% | Add +498.3% | 1,326,430 | $141.4M |
| Paradigm Biocapital Advisors LP | 2.65% | Add +5.7% | 1,325,977 | $141.4M |
| Northern Trust Corp. | 0.02% | Add +1.6% | 1,315,325 | $140.2M |
| Bank of New York Mellon Corp | 0.02% | Add +4.0% | 1,312,756 | $140.0M |
| Two Sigma Investments, LP | 0.10% | Add +424.1% | 1,242,222 | $132.4M |
| Morgan Stanley | 0.01% | Reduce -7.4% | 1,233,498 | $131.5M |
| Pictet Asset Management Holding SA | 0.12% | Add +10.7% | 1,220,353 | $129.8M |
| Charles Schwab Investment Management Inc. | 0.02% | Add +13.5% | 1,213,963 | $129.4M |
| Hood River Capital Management LLC | 0.82% | Add +53.5% | 1,056,871 | $112.7M |
| Bank of America Corp. | 0.01% | Reduce -31.9% | 1,023,114 | $109.1M |
| Sei Investments Co. | 0.10% | Reduce -27.2% | 1,015,870 | $108.3M |
| Nwi Management LP | 6.91% | No change | 1,014,000 | $108.1M |
| Castle Hook Partners LP | 1.13% | Reduce -21.8% | 993,310 | $105.9M |
| Jennison Associates LLC | 0.06% | Add +49.7% | 905,094 | $96.5M |
| Polar Capital Holdings Plc | 0.27% | Add +142.0% | 890,872 | $95.0M |
| FIL Ltd | 0.07% | Add +3.3% | 856,214 | $91.3M |
| Principal Financial Group Inc. | 0.04% | Reduce -6.6% | 856,126 | $91.3M |
| Adage Capital Partners Gp, L.L.C. | 0.13% | Reduce -5.6% | 850,000 | $90.6M |
| Fiera Capital Corp | 0.33% | Reduce -17.5% | 843,042 | $89.9M |
| Legal & General Group Plc | 0.02% | Add +5.0% | 826,431 | $88.1M |
| Frontier Capital Management Co. LLC | 0.79% | Add +69.4% | 795,242 | $84.8M |
| American Century Companies Inc. | 0.04% | Reduce -17.9% | 759,735 | $81.0M |
| Samlyn Capital, LLC | 1.29% | Add +75.6% | 732,568 | $78.1M |
| Susquehanna International Group, LLP | 0.07% | Add +320.1% | 729,354 | $77.8M |
| TimesSquare Capital Management, LLC | 1.14% | Add +24.5% | 728,096 | $77.6M |
| Clearbridge Investments, LLC | 0.06% | Add +11.3% | 715,922 | $76.3M |
| Alliancebernstein L.P. | 0.03% | Reduce -32.8% | 462,796 | $75.7M |
| Ensign Peak Advisors, Inc | 0.12% | Add +40.7% | 702,951 | $74.9M |
| Deutsche Bank AG | 0.02% | Add +22.8% | 690,590 | $73.6M |
| HRT Financial LP | 0.13% | New | 689,981 | $73.6M |
| Raymond James Financial Inc. | 0.02% | Reduce -14.8% | 660,601 | $70.4M |
| Affinity Asset Advisors, LLC | 3.45% | Add +35.4% | 650,000 | $69.3M |
| William Blair Investment Management, LLC | 0.20% | Reduce -30.2% | 629,831 | $67.2M |
| GW&K Investment Management, LLC | 0.52% | Add +1.1% | 629,760 | $67.1M |
| Squarepoint Ops LLC | 0.13% | Add +1468.0% | 616,464 | $65.7M |
| AQR Capital Management | 0.02% | Reduce -9.3% | 612,832 | $65.3M |
| Railway Pension Investments Ltd | 0.81% | New | 604,700 | $64.5M |
| Swiss National Bank | 0.03% | Reduce -5.2% | 593,512 | $63.3M |
| Nuveen, LLC | 0.02% | Add +10.7% | 591,844 | $63.1M |
| Artia Global Partners LP | 11.94% | Reduce -6.3% | 589,052 | $62.8M |
| Eventide Asset Management, LLC | 0.83% | Add +6.8% | 583,665 | $62.2M |
| Aberdeen Group plc | 0.09% | Add +108.5% | 577,437 | $61.6M |
| Davern Capital Partners, LP | 10.18% | Add +206.7% | 559,824 | $59.7M |
| Candriam S.C.A. | 0.27% | Add +38.2% | 555,131 | $59.1M |
| Wellington Management Group LLP | 0.01% | Add +36.3% | 543,893 | $58.0M |
| Point72 Asset Management | 0.09% | New | 536,997 | $57.3M |
| Long Focus Capital Management, LLC | 2.32% | Add +264.1% | 528,000 | $56.3M |
| Marshall Wace, LLP | 0.05% | Add +60.6% | 501,930 | $53.5M |
| Amundi | 0.01% | Reduce -39.4% | 487,525 | $52.0M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.05% | Add +1.6% | 475,307 | $50.7M |
| Bridgewater Associates | 0.20% | Add +54.1% | 455,392 | $48.6M |
| Sumitomo Mitsui Trust Group, Inc. | 0.03% | Reduce -12.7% | 437,713 | $46.7M |
| Royal Bank of Canada | 0.01% | Reduce -20.4% | 416,487 | $44.4M |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.03% | Add +15.6% | 416,108 | $44.4M |
| Palo Alto Investors LP | 6.10% | Reduce -0.3% | 413,980 | $44.1M |
| Dimensional Fund Advisors LP | 0.01% | Add +1.9% | 408,388 | $43.5M |
| BNP Paribas Financial Markets | 0.02% | Reduce -33.7% | 400,765 | $42.7M |
| Eagle Health Investments LP | 6.79% | Add +71.3% | 384,130 | $41.0M |
| Neuberger Berman Group LLC | 0.03% | Add +39.9% | 378,816 | $40.4M |
| Prosight Management, LP | 6.90% | New | 375,609 | $40.0M |
| Invesco Ltd. | 0.00% | Reduce -94.3% | 368,261 | $39.3M |
| Gateway Investment Advisers LLC | 0.38% | No change | 365,000 | $38.9M |
| Rock Springs Capital Management LP | 1.88% | Add +15.2% | 362,150 | $38.6M |
| Envestnet Asset Management Inc. | 0.01% | Add +12.4% | 336,997 | $35.9M |
| Victory Capital Management Inc. | 0.02% | Reduce -22.6% | 306,651 | $32.7M |
| California State Teachers Retirement System | 0.03% | Add +0.5% | 304,798 | $32.5M |
| New York State Common Retirement Fund | 0.04% | Add +3.6% | 304,236 | $32.4M |
| Schroder Investment Management Group | 0.02% | Add +148.7% | 298,372 | $31.8M |
"% of holder's portfolio" is INSM's weight in each manager's 13F, not the share of Insmed Inc. the manager owns.