Alnylam PharmaceuticalsALNY
13F holders, Q3 2024 (September 30)568holders +45
100new positions
58sold out
7famous investors
$275.02avg. 13F price*
At the end of Q3 2024, 568 institutions reported holding Alnylam Pharmaceuticals Inc. (ALNY) in their 13F filings, up 45 from Q2 2024. 100 opened new positions and 58 sold out. The largest holders were Capital World Investors ($4.5B), FMR LLC ($4.0B) and Vanguard Group Inc. ($3.5B). 7 famous investors held it, including Cliff Asness (0.2% of AQR Capital Management's portfolio), David E. Shaw (0.1% of D. E. Shaw & Co.'s portfolio) and Israel Englander (0.1% of Millennium Management's portfolio).
- Company
- Alnylam Pharmaceuticals Inc.
- Sector
- Health Care
- CUSIP
- 02043Q107
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2024 → Q3 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 100 | $488.0M |
| Exits | 58 | $461.8M |
All 13F filers, Q2 2024 → Q3 2024: 12,288,805 shares bought and 8,457,039 shares sold, net +3,831,766 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 568 holders
| Capital World Investors | 0.70% | Add +10.3% | 16,508,424 | $4.5B |
| FMR LLC | 0.25% | Add +20.6% | 14,672,272 | $4.0B |
| Vanguard Group Inc. | 0.06% | Add +1.0% | 12,635,096 | $3.5B |
| BlackRock, Inc. | 0.06% | — | 9,707,418 | $2.7B |
| Capital Research Global Investors | 0.30% | Add +61.1% | 5,243,903 | $1.4B |
| Wellington Management Group LLP | 0.24% | Reduce -20.2% | 4,953,347 | $1.4B |
| Baillie Gifford & Co. | 1.01% | Reduce -19.0% | 4,887,000 | $1.3B |
| Capital International Investors | 0.21% | Add +2.0% | 3,970,863 | $1.1B |
| Dodge & Cox | 0.56% | Reduce -4.2% | 3,622,535 | $996.3M |
| State Street Corp. | 0.04% | Reduce -1.9% | 3,468,315 | $953.9M |
| T. Rowe Price Associates Inc. | 0.11% | Reduce -1.0% | 3,451,833 | $949.4M |
| T. Rowe Price Investment Management, Inc. | 0.52% | Reduce -0.5% | 3,139,254 | $863.4M |
| Norges Bank | 0.09% | Add +3.4% | 2,375,535 | $653.3M |
| JPMorgan Chase & Co. | 0.05% | Add +22.0% | 2,162,944 | $594.9M |
| Geode Capital Management, LLC | 0.05% | Add +3.2% | 2,147,203 | $589.2M |
| American Century Companies Inc. | 0.26% | Add +17.6% | 1,592,733 | $438.0M |
| Orbis Allan Gray Ltd | 1.85% | Add +75.9% | 1,268,112 | $348.8M |
| Winslow Capital Management, LLC | 0.95% | New | 961,607 | $264.5M |
| Bellevue Group AG | 3.61% | Reduce -12.0% | 809,095 | $222.5M |
| Legal & General Group Plc | 0.06% | Add +3.9% | 791,729 | $217.7M |
| Northern Trust Corp. | 0.03% | Reduce -5.9% | 734,919 | $202.1M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.05% | Reduce -15.5% | 706,231 | $194.2M |
| Invesco Ltd. | 0.04% | Add +77.1% | 695,868 | $191.4M |
| Pictet Asset Management Holding SA | 0.20% | Reduce -12.4% | 664,722 | $182.8M |
| Morgan Stanley | 0.01% | Reduce -16.6% | 618,563 | $170.1M |
| Amundi | 0.06% | Reduce -19.5% | 593,320 | $160.9M |
| Bank of America Corp. | 0.01% | Reduce -12.7% | 550,772 | $151.5M |
| Deutsche Bank AG | 0.06% | Add +10.3% | 539,271 | $148.3M |
| Loomis Sayles & Co. L P | 0.19% | Reduce -7.7% | 525,303 | $144.5M |
| AQR Capital Management | 0.19% | Add +86.2% | 505,654 | $139.0M |
| TD Asset Management Inc | 0.12% | Reduce -0.3% | 488,283 | $134.2M |
| Charles Schwab Investment Management Inc. | 0.03% | Add +3.6% | 487,348 | $134.0M |
| Bank of New York Mellon Corp | 0.02% | Reduce -29.6% | 474,439 | $130.5M |
| Nuveen Asset Management, LLC | 0.03% | Reduce -25.0% | 441,092 | $121.3M |
| Royal Bank of Canada | 0.03% | Reduce -0.1% | 411,066 | $113.1M |
| Franklin Resources Inc. | 0.03% | Add +32.4% | 382,973 | $108.5M |
| Gilder Gagnon Howe & Co. LLC | 1.26% | Reduce -3.7% | 383,993 | $105.6M |
| Swiss National Bank | 0.07% | Add +0.3% | 375,400 | $103.2M |
| Goldman Sachs Group Inc. | 0.02% | Reduce -30.8% | 356,100 | $97.9M |
| Candriam S.C.A. | 0.56% | Add +0.1% | 351,668 | $96.7M |
| Canada Pension Plan Investment Board | 0.09% | Add +21.5% | 344,858 | $94.8M |
| D. E. Shaw & Co. | 0.13% | Add +18.9% | 332,305 | $91.4M |
| Eagle Asset Management Inc. | 0.44% | Add +25.7% | 309,589 | $85.9M |
| Polar Capital Holdings Plc | 0.41% | Add +8.8% | 310,000 | $85.3M |
| Dimensional Fund Advisors LP | 0.02% | Add +13.2% | 301,389 | $82.9M |
| First Trust Advisors LP | 0.07% | Add +18.7% | 285,571 | $78.5M |
| Royal London Asset Management Ltd. | 0.19% | Reduce -0.9% | 279,750 | $76.9M |
| Corient Private Wealth LP | 0.12% | Add +1.4% | 278,485 | $76.6M |
| Sumitomo Mitsui Trust Group, Inc. | 0.05% | Add +0.5% | 278,241 | $76.5M |
| Wells Fargo & Company | 0.02% | Add +29.3% | 266,497 | $73.3M |
| Millennium Management | 0.06% | Add +81.2% | 250,963 | $69.0M |
| Orbimed Advisors LLC | 1.26% | No change | 250,300 | $68.8M |
| Rock Springs Capital Management LP | 2.24% | No change | 250,000 | $68.8M |
| Sei Investments Co. | 0.09% | Add +507.3% | 237,907 | $65.4M |
| Eventide Asset Management, LLC | 1.06% | Add +157.8% | 224,333 | $61.7M |
| Janus Henderson Group PLC | 0.03% | Reduce -12.1% | 219,337 | $60.3M |
| California Public Employees Retirement System | 0.04% | Reduce -1.8% | 211,781 | $58.2M |
| CIBC Private Wealth Group LLC | 0.10% | Add +1.0% | 208,486 | $57.3M |
| Aberdeen Group plc | 0.10% | Add +0.1% | 200,069 | $55.0M |
| National Pension Service | 0.05% | No change | 196,387 | $54.0M |
| Voloridge Investment Management, LLC | 0.19% | Add +1206.9% | 194,247 | $53.4M |
| Manufacturers Life Insurance Company, The | 0.05% | Reduce -41.8% | 191,382 | $52.6M |
| California State Teachers Retirement System | 0.06% | Reduce -1.2% | 191,325 | $52.6M |
| Rhumbline Advisers | 0.04% | Add +4.7% | 181,428 | $49.9M |
| Casdin Capital, LLC | 3.12% | No change | 170,000 | $46.8M |
| Federated Hermes, Inc. | 0.10% | Add +82.4% | 168,923 | $46.5M |
| Susquehanna International Group, LLP | 0.08% | Add +144.3% | 163,734 | $45.0M |
| UBS Group AG | 0.01% | Reduce -0.6% | 155,671 | $42.8M |
| Qube Research & Technologies Ltd | 0.08% | New | 152,162 | $41.8M |
| Skandinaviska Enskilda Banken AB (publ) | 0.19% | Add +40.4% | 150,119 | $41.3M |
| Deerfield Management Company, L.P. | 0.66% | Add +21.0% | 145,000 | $39.9M |
| Palo Alto Investors LP | 5.03% | New | 140,681 | $38.7M |
| ANTIPODES PARTNERS Ltd | 1.33% | Reduce -41.6% | 139,375 | $38.3M |
| Ameriprise Financial Inc. | 0.01% | Reduce -42.2% | 137,838 | $37.9M |
| Los Angeles Capital Management LLC | 0.15% | Add +11433.4% | 137,017 | $37.7M |
| Jane Street Group, LLC | 0.06% | Reduce -2.3% | 136,281 | $37.5M |
| Capital International Sarl | 0.95% | Add +23.0% | 135,073 | $37.1M |
| State Board of Administration of Florida Retirement System | 0.07% | Reduce -4.4% | 129,417 | $35.6M |
| Panagora Asset Management Inc. | 0.17% | Add +535.5% | 125,891 | $34.6M |
| Capital International, Inc. | 0.43% | Add +9.9% | 125,221 | $34.4M |
| Mitsubishi UFJ Trust & Banking Corp | 0.08% | Reduce -55.2% | 120,332 | $33.1M |
| Novo Holdings A/S | 1.62% | No change | 118,383 | $32.6M |
| HighTower Advisors, LLC | 0.05% | Reduce -7.4% | 115,790 | $31.9M |
| Adage Capital Partners Gp, L.L.C. | 0.06% | Reduce -54.3% | 116,000 | $31.9M |
| BNP Paribas Financial Markets | 0.03% | Reduce -8.9% | 114,784 | $31.6M |
| DekaBank Deutsche Girozentrale | 0.06% | Reduce -0.2% | 113,193 | $30.9M |
| Frontier Capital Management Co. LLC | 0.29% | Reduce -34.0% | 111,231 | $30.6M |
| AXA S.A. | 0.09% | Add +0.2% | 111,216 | $30.6M |
| Man Group plc | 0.09% | Reduce -6.9% | 109,803 | $30.2M |
| Voya Investment Management LLC | 0.04% | Reduce -4.8% | 108,709 | $29.9M |
| Korea Investment CORP | 0.07% | Reduce -4.0% | 107,893 | $29.7M |
| Neuberger Berman Group LLC | 0.02% | Add +11.3% | 106,197 | $29.2M |
| Barclays PLC | 0.01% | Reduce -19.9% | 105,185 | $28.9M |
| Two Sigma Advisers, LP | 0.07% | Reduce -60.1% | 103,100 | $28.4M |
| Capital International Ltd. | 1.19% | Add +6.6% | 100,423 | $27.6M |
| Telemark Asset Management, LLC | 2.78% | New | 100,000 | $27.5M |
| Trexquant Investment LP | 0.32% | Add +139.7% | 90,743 | $25.0M |
| Nomura Asset Management Co. Ltd. | 0.07% | Add +7.8% | 85,445 | $23.5M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.03% | Add +8.6% | 85,305 | $23.5M |
| Treasurer of the State of North Carolina | 0.09% | Add +6.3% | 84,605 | $23.3M |
"% of holder's portfolio" is ALNY's weight in each manager's 13F, not the share of Alnylam Pharmaceuticals Inc. the manager owns.