InsmedINSM
13F holders, Q1 2025 (March 31)441holders +3
51new positions
48sold out
8famous investors
$76.43avg. 13F price*
At the end of Q1 2025, 441 institutions reported holding Insmed Inc. (INSM) in their 13F filings, up 3 from Q4 2024. 51 opened new positions and 48 sold out. The largest holders were Vanguard Group Inc. ($1.4B), BlackRock, Inc. ($1.2B) and Darwin Global Management, Ltd. ($1.2B). 8 famous investors held it, including Stanley Druckenmiller (3.5% of Duquesne Family Office's portfolio), George Soros (0.6% of Soros Fund Management's portfolio) and Lee Ainslie (0.6% of Maverick Capital's portfolio).
- Company
- Insmed Inc.
- CUSIP
- 457669307
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 51 | $196.5M |
| Exits | 48 | $230.9M |
All 13F filers, Q4 2024 → Q1 2025: 19,986,687 shares bought and 12,843,153 shares sold, net +7,143,534 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 441 holders
| Vanguard Group Inc. | 0.03% | Add +0.3% | 18,268,122 | $1.4B |
| BlackRock, Inc. | 0.03% | Add +0.1% | 16,048,882 | $1.2B |
| Darwin Global Management, Ltd. | 82.08% | Add +18.8% | 15,397,975 | $1.2B |
| T. Rowe Price Associates Inc. | 0.12% | Add +1.7% | 12,923,541 | $985.9M |
| Capital International Investors | 0.11% | Add +1.1% | 7,198,485 | $549.2M |
| JPMorgan Chase & Co. | 0.04% | Add +93.3% | 6,354,022 | $484.7M |
| State Street Corp. | 0.02% | Reduce -5.9% | 5,747,293 | $438.5M |
| Baker Bros. Advisors LP | 4.59% | Add +7.5% | 5,380,626 | $410.5M |
| Geode Capital Management, LLC | 0.03% | Add +4.9% | 4,288,735 | $327.3M |
| Adage Capital Partners Gp, L.L.C. | 0.49% | Add +109.2% | 3,446,944 | $263.0M |
| FMR LLC | 0.02% | Reduce -30.1% | 3,394,384 | $259.0M |
| Artisan Partners Limited Partnership | 0.40% | Add +2.9% | 3,217,268 | $245.4M |
| RTW Investments, LP | 3.52% | No change | 3,014,558 | $230.0M |
| Ameriprise Financial Inc. | 0.06% | Add +3.6% | 2,951,622 | $225.2M |
| Alliancebernstein L.P. | 0.07% | Add +2.5% | 2,423,513 | $184.9M |
| FIL Ltd | 0.17% | Reduce -9.4% | 2,390,201 | $182.3M |
| Macquarie Group Ltd. | 0.22% | Add +2.1% | 2,362,105 | $180.2M |
| William Blair Investment Management, LLC | 0.50% | Reduce -4.9% | 2,313,217 | $176.5M |
| Franklin Resources Inc. | 0.05% | Reduce -0.6% | 2,148,284 | $163.9M |
| Holocene Advisors, LP | 0.46% | Add +194.7% | 2,026,422 | $154.6M |
| Pictet Asset Management Holding SA | 0.17% | Add +2.7% | 2,013,329 | $153.9M |
| Clearbridge Investments, LLC | 0.12% | Reduce -2.6% | 1,828,728 | $139.5M |
| Invesco Ltd. | 0.03% | Add +76.3% | 1,791,324 | $136.7M |
| Principal Financial Group Inc. | 0.08% | Reduce -3.4% | 1,755,373 | $133.9M |
| Norges Bank | 0.02% | Reduce -5.0% | 1,742,843 | $133.0M |
| Northern Trust Corp. | 0.02% | Reduce -3.8% | 1,683,838 | $128.5M |
| Charles Schwab Investment Management Inc. | 0.02% | Add +3.6% | 1,602,655 | $122.3M |
| Janus Henderson Group PLC | 0.07% | Add +6.9% | 1,545,419 | $120.5M |
| Hood River Capital Management LLC | 2.03% | Add +2.1% | 1,558,286 | $118.9M |
| Integral Health Asset Management, LLC | 13.10% | No change | 1,550,000 | $118.2M |
| Montanova Capital, LLC | 4.61% | Reduce -7.4% | 1,492,383 | $113.9M |
| T. Rowe Price Investment Management, Inc. | 0.07% | Reduce -25.5% | 1,476,948 | $112.7M |
| Westfield Capital Management Co. LP | 0.52% | Add +49.9% | 1,406,609 | $107.3M |
| Goldman Sachs Group Inc. | 0.02% | Reduce -18.4% | 1,402,621 | $107.0M |
| GW&K Investment Management, LLC | 0.97% | Add +21.3% | 1,377,726 | $105.1M |
| Duquesne Family Office | 3.50% | Add +130.7% | 1,369,050 | $104.4M |
| Bank of America Corp. | 0.01% | Add +22.1% | 1,352,999 | $103.2M |
| Lord, Abbett & Co. LLC | 0.39% | Reduce -7.3% | 1,350,587 | $103.0M |
| Wellington Management Group LLP | 0.02% | Add +62.5% | 1,222,627 | $93.3M |
| Eventide Asset Management, LLC | 1.80% | Add +7.3% | 1,181,675 | $90.2M |
| Nuveen, LLC | 0.03% | — | 1,158,094 | $88.4M |
| Bank of New York Mellon Corp | 0.02% | Reduce -19.6% | 1,156,750 | $88.2M |
| Vestal Point Capital, LP | 5.86% | Add +19.4% | 1,075,000 | $82.0M |
| TimesSquare Capital Management, LLC | 1.31% | Add +55.5% | 1,064,148 | $81.2M |
| Morgan Stanley | 0.01% | Reduce -21.6% | 1,059,656 | $80.8M |
| Loomis Sayles & Co. L P | 0.11% | Reduce -14.1% | 1,009,466 | $77.0M |
| Palo Alto Investors LP | 14.34% | Reduce -38.4% | 987,153 | $75.3M |
| American Century Companies Inc. | 0.04% | Add +7.3% | 872,123 | $66.5M |
| Jennison Associates LLC | 0.04% | Reduce -3.3% | 748,313 | $57.1M |
| Alyeska Investment Group, L.P. | 0.22% | Reduce -21.5% | 735,000 | $56.1M |
| D. E. Shaw & Co. | 0.07% | Add +44.4% | 734,880 | $56.1M |
| Polar Capital Holdings Plc | 0.34% | Reduce -0.2% | 728,755 | $55.6M |
| Novo Holdings A/S | 4.21% | No change | 724,666 | $55.3M |
| Summit Partners Public Asset Management, LLC | 2.58% | Add +10.3% | 704,366 | $53.7M |
| Marshall Wace, LLP | 0.07% | Reduce -34.6% | 696,237 | $53.1M |
| Millennium Management | 0.05% | Reduce -2.8% | 679,191 | $51.8M |
| Brown Advisory Inc. | 0.07% | Add +1.4% | 672,450 | $51.3M |
| Long Focus Capital Management, LLC | 3.27% | Reduce -3.1% | 630,800 | $48.1M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.13% | Reduce -6.4% | 613,269 | $46.8M |
| Emerald Advisers, LLC | 2.04% | Reduce -13.2% | 594,013 | $45.3M |
| Ensign Peak Advisors, Inc | 0.09% | Add +11.4% | 589,399 | $45.0M |
| Voya Investment Management LLC | 0.06% | Add +6.7% | 585,428 | $44.7M |
| Fiera Capital Corp | 0.16% | Reduce -0.5% | 579,237 | $44.2M |
| Frontier Capital Management Co. LLC | 0.47% | Add +28.2% | 557,587 | $42.5M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.01% | Add +10.8% | 539,484 | $41.2M |
| Cormorant Asset Management, LP | 3.03% | Reduce -19.2% | 525,000 | $40.1M |
| Rock Springs Capital Management LP | 2.26% | Reduce -6.2% | 515,900 | $39.4M |
| Perceptive Advisors LLC | 1.38% | Add +253.7% | 509,300 | $38.9M |
| TD Asset Management Inc | 0.04% | Reduce -4.7% | 502,232 | $38.3M |
| 1832 Asset Management L.P. | 0.07% | New | 487,800 | $37.2M |
| UBS Group AG | 0.01% | Add +17.7% | 477,636 | $36.4M |
| BNP Paribas Financial Markets | 0.03% | Add +146.9% | 461,663 | $35.2M |
| Deerfield Management Company, L.P. | 0.79% | New | 458,000 | $34.9M |
| Candriam S.C.A. | 0.22% | Add +0.4% | 455,408 | $34.7M |
| Paradigm Biocapital Advisors LP | 1.59% | New | 451,359 | $34.4M |
| Nwi Management LP | 4.58% | Add +61.3% | 450,000 | $34.3M |
| Susquehanna International Group, LLP | 0.06% | Add +0.9% | 448,614 | $34.2M |
| Eagle Health Investments LP | 8.78% | Reduce -13.7% | 443,300 | $33.8M |
| Maverick Capital | 0.58% | New | 425,125 | $32.4M |
| Allspring Global Investments Holdings, LLC | 0.05% | Add +3.7% | 438,674 | $31.6M |
| Victory Capital Management Inc. | 0.03% | Reduce -0.4% | 409,114 | $31.2M |
| Raymond James Financial Inc. | 0.01% | Add +12.5% | 408,937 | $31.2M |
| Two Sigma Investments, LP | 0.07% | Reduce -31.5% | 406,903 | $31.0M |
| First Turn Management, LLC | 6.18% | Reduce -10.2% | 401,629 | $30.6M |
| Sei Investments Co. | 0.04% | Add +9.2% | 395,979 | $30.2M |
| Fred Alger Management, LLC | 0.16% | Reduce -1.9% | 378,331 | $28.9M |
| Citadel Advisors | 0.03% | Add +15.8% | 374,815 | $28.6M |
| Dimensional Fund Advisors LP | 0.01% | Add +6.0% | 372,000 | $28.4M |
| New York State Common Retirement Fund | 0.04% | Add +11.9% | 355,722 | $27.1M |
| Emerald Mutual Fund Advisers Trust | 1.98% | Reduce -11.7% | 353,831 | $27.0M |
| Aberdeen Group plc | 0.05% | Add +16.1% | 336,357 | $25.7M |
| Driehaus Capital Management LLC | 0.24% | Add +93.5% | 331,459 | $25.3M |
| Patient Square Capital LP | 10.42% | Add +7.5% | 330,250 | $25.2M |
| Swiss National Bank | 0.02% | Add +2.5% | 329,300 | $25.1M |
| Envestnet Asset Management Inc. | 0.01% | Add +26.9% | 325,307 | $24.8M |
| Silverarc Capital Management, LLC | 5.12% | Reduce -13.7% | 321,366 | $24.5M |
| C WorldWide Group Holding A/S | 0.30% | Reduce -6.4% | 321,110 | $24.5M |
| Manufacturers Life Insurance Company, The | 0.02% | Add +1.7% | 318,392 | $24.3M |
| Artia Global Partners LP | 7.12% | Add +89.5% | 318,239 | $24.3M |
| Deutsche Bank AG | 0.01% | Reduce -36.5% | 310,618 | $23.7M |
"% of holder's portfolio" is INSM's weight in each manager's 13F, not the share of Insmed Inc. the manager owns.