Alnylam Pharmaceuticals, Inc.
ALNY- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001178670
No open-market purchases or sales by Alnylam Pharmaceuticals, Inc. insiders were filed in the last 90 days; 794 institutions reported holding it in 13F filings for Q2 2026, worth $40.1B in total; no superinvestor holds it.
13F holders, Q3 2024
Institutional positions in Alnylam Pharmaceuticals, Inc. as of Sep 30, 2024. 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
- 569
- +49 vs. Q2 2024
- Shares held
- 123.8M
- +13.6M (+12.3%) vs. Q2 2024
- Total value
- $34.1B
- +$7.26B (+27.1%) vs. Q2 2024
- New holders
- 107
- 222 more added
- Sold out
- 58
- 170 more reduced
5 institutions that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ALNY 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 | 794 | $40.1B |
| Q1 2026 | 793 | $43.4B |
| Q4 2025 | 852 | $52.7B |
| Q3 2025 | 823 | $59.2B |
| Q2 2025 | 653 | $43.1B |
| Q1 2025 | 625 | $34.8B |
| Q4 2024 | 594 | $30.1B |
| Q3 2024 | 569 | $34.1B |
| Q2 2024 | 525 | $29.1B |
| Q1 2024 | 499 | $17.2B |
| Q4 2023 | 501 | $22.4B |
| Q3 2023 | 454 | $20.9B |
| Q2 2023 | 477 | $22.5B |
| Q1 2023 | 478 | $24.0B |
| Q4 2022 | 489 | $28.4B |
| Q3 2022 | 497 | $26.7B |
| Q2 2022 | 424 | $16.6B |
| Q1 2022 | 443 | $18.6B |
| Q4 2021 | 435 | $19.0B |
| Q3 2021 | 407 | $21.1B |
| Q2 2021 | 401 | $19.0B |
| Q1 2021 | 391 | $15.4B |
Institutions, Q3 2024
Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q2 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Capital World Investors | 16,508,424 | $4.54B | 0.70% | +1,537,081+10.3% | Added |
| FMR LLC | 14,672,272 | $4.04B | 0.25% | +2,508,234+20.6% | Added |
| Vanguard Group Inc | 12,635,096 | $3.48B | 0.06% | +127,318+1.0% | Added |
| BlackRock, Inc. | 9,707,418 | $2.67B | 0.06% | +9,707,418 | New |
| Capital Research Global Investors | 5,243,903 | $1.44B | 0.30% | +1,988,255+61.1% | Added |
| Wellington Management Group LLP | 4,953,347 | $1.36B | 0.24% | −1,257,132−20.2% | Reduced |
| Baillie Gifford & Co | 4,887,000 | $1.34B | 1.01% | −1,145,656−19.0% | Reduced |
| Capital International Investors | 3,970,863 | $1.09B | 0.21% | +79,804+2.1% | Added |
| Dodge & Cox | 3,622,535 | $996.3M | 0.56% | −157,650−4.2% | Reduced |
| State Street Corp | 3,468,315 | $953.9M | 0.04% | −66,521−1.9% | Reduced |
| Price T Rowe Associates Inc | 3,451,833 | $949.4M | 0.11% | −36,170−1.0% | Reduced |
| T. Rowe Price Investment Management, Inc. | 3,139,254 | $863.4M | 0.52% | −14,373−0.5% | Reduced |
| Norges Bank | 2,375,535 | $653.3M | 0.09% | +78,754+3.4% | Added |
| JPMorgan Chase & Co | 2,162,944 | $594.9M | 0.05% | +390,073+22.0% | Added |
| Geode Capital Management, LLC | 2,147,203 | $589.2M | 0.05% | +66,928+3.2% | Added |
| American Century Companies Inc | 1,592,733 | $438.0M | 0.25% | +238,564+17.6% | Added |
| Orbis Allan Gray Ltd | 1,268,112 | $348.8M | 1.85% | +547,059+75.9% | Added |
| Winslow Capital Management, LLC | 961,607 | $264.5M | 0.95% | +961,607 | New |
| Bellevue Group AG | 809,095 | $222.5M | 3.61% | −110,739−12.0% | Reduced |
| Legal & General Group Plc | 791,729 | $217.7M | 0.06% | +29,810+3.9% | Added |
| Northern Trust Corp | 734,919 | $202.1M | 0.03% | −45,916−5.9% | Reduced |
| UBS Asset Management Americas Inc | 706,231 | $194.2M | 0.05% | −129,182−15.5% | Reduced |
| Invesco Ltd. | 695,868 | $191.4M | 0.04% | +303,027+77.1% | Added |
| Pictet Asset Management Holding SA | 664,722 | $182.8M | 0.20% | −93,806−12.4% | Reduced |
| Morgan Stanley | 618,563 | $170.1M | 0.01% | −122,951−16.6% | Reduced |
| Amundi | 593,320 | $160.9M | 0.06% | −143,970−19.5% | Reduced |
| Bank of America Corp | 550,772 | $151.5M | 0.01% | −80,340−12.7% | Reduced |
| Deutsche Bank AG | 539,271 | $148.3M | 0.06% | +50,153+10.3% | Added |
| Loomis Sayles & Co L P | 525,303 | $144.5M | 0.19% | −43,979−7.7% | Reduced |
| AQR Capital Management LLC | 505,654 | $139.0M | 0.19% | +234,035+86.2% | Added |
| TD Asset Management Inc | 488,283 | $134.2M | 0.12% | −1,657−0.3% | Reduced |
| Charles Schwab Investment Management Inc | 487,348 | $134.0M | 0.03% | +16,756+3.6% | Added |
| Bank of New York Mellon Corp | 474,439 | $130.5M | 0.02% | −199,263−29.6% | Reduced |
| Nuveen Asset Management, LLC | 441,092 | $121.3M | 0.03% | −147,377−25.0% | Reduced |
| Royal Bank of Canada | 411,066 | $113.1M | 0.03% | −298−0.1% | Reduced |
| Franklin Resources Inc | 382,973 | $108.5M | 0.03% | +93,647+32.4% | Added |
| Gilder Gagnon Howe & Co LLC | 383,993 | $105.6M | 1.26% | −14,623−3.7% | Reduced |
| Swiss National Bank | 375,400 | $103.2M | 0.07% | +1,000+0.3% | Added |
| Goldman Sachs Group Inc | 356,100 | $97.9M | 0.02% | −158,567−30.8% | Reduced |
| Candriam Luxembourg S.C.A. | 351,668 | $96.7M | 0.56% | +440+0.1% | Added |
| Canada Pension Plan Investment Board | 344,858 | $94.8M | 0.09% | +60,925+21.5% | Added |
| D. E. Shaw & Co., Inc. | 332,305 | $91.4M | 0.12% | +52,907+18.9% | Added |
| Eagle Asset Management Inc | 309,589 | $85.9M | 0.44% | +63,385+25.7% | Added |
| Polar Capital Holdings Plc | 310,000 | $85.3M | 0.50% | +25,000+8.8% | Added |
| Dimensional Fund Advisors LP | 301,389 | $82.9M | 0.02% | +35,183+13.2% | Added |
| First Trust Advisors LP | 285,571 | $78.5M | 0.07% | +45,024+18.7% | Added |
| Royal London Asset Management Ltd | 279,750 | $76.9M | 0.19% | −2,595−0.9% | Reduced |
| CI Private Wealth, LLC | 278,485 | $76.6M | 0.12% | +3,749+1.4% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 278,241 | $76.5M | 0.05% | +1,294+0.5% | Added |
| Wells Fargo & Company | 266,497 | $73.3M | 0.02% | +60,349+29.3% | Added |
| Millennium Management LLC | 250,963 | $69.0M | 0.06% | +112,459+81.2% | Added |
| OrbiMed Advisors LLC | 250,300 | $68.8M | 1.26% | 00.0% | Unchanged |
| Rock Springs Capital Management LP | 250,000 | $68.8M | 2.24% | 00.0% | Unchanged |
| SEI Investments Co | 237,907 | $65.4M | 0.08% | +198,729+507.2% | Added |
| Eventide Asset Management, LLC | 224,333 | $61.7M | 1.06% | +137,333+157.9% | Added |
| Janus Henderson Group PLC | 219,337 | $60.3M | 0.03% | −30,103−12.1% | Reduced |
| California Public Employees Retirement System | 211,781 | $58.2M | 0.04% | −3,786−1.8% | Reduced |
| CIBC Private Wealth Group, LLC | 208,486 | $57.3M | 0.10% | +2,095+1.0% | Added |
| Standard Life Aberdeen plc | 200,069 | $55.0M | 0.10% | +910.0% | Added |
| National Pension Service | 196,387 | $54.0M | 0.05% | 00.0% | Unchanged |
| Voloridge Investment Management, LLC | 194,247 | $53.4M | 0.19% | +179,384+1,206.9% | Added |
| Manufacturers Life Insurance Company, The | 191,382 | $52.6M | 0.05% | −137,655−41.8% | Reduced |
| California State Teachers Retirement System | 191,325 | $52.6M | 0.06% | −2,269−1.2% | Reduced |
| Rhumbline Advisers | 181,428 | $49.9M | 0.05% | +8,101+4.7% | Added |
| Casdin Capital, LLC | 170,000 | $46.8M | 3.12% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 168,923 | $46.5M | 0.10% | +76,315+82.4% | Added |
| Susquehanna International Group, LLP | 163,734 | $45.0M | 0.08% | +96,723+144.3% | Added |
| UBS Group AG | 155,671 | $42.8M | 0.01% | −912−0.6% | Reduced |
| Qube Research & Technologies Ltd | 152,162 | $41.8M | 0.08% | +152,162 | New |
| Skandinaviska Enskilda Banken AB (publ) | 150,119 | $41.3M | 0.19% | +43,227+40.4% | Added |
| Deerfield Management Company, L.P. (Series C) | 145,000 | $39.9M | 0.60% | +25,200+21.0% | Added |
| Palo Alto Investors LP | 140,681 | $38.7M | 5.03% | +140,681 | New |
| Antipodes Partners Ltd | 139,375 | $38.3M | 1.33% | −99,374−41.6% | Reduced |
| Ameriprise Financial Inc | 137,838 | $37.9M | 0.01% | −100,482−42.2% | Reduced |
| Los Angeles Capital Management LLC | 137,017 | $37.7M | 0.15% | +135,829+11,433.4% | Added |
| Jane Street Group, LLC | 136,281 | $37.5M | 0.06% | −3,216−2.3% | Reduced |
| Capital International Sarl | 135,073 | $37.1M | 0.95% | +25,258+23.0% | Added |
| State Board of Administration of Florida Retirement System | 129,417 | $35.6M | 0.07% | −5,930−4.4% | Reduced |
| Panagora Asset Management Inc | 125,891 | $34.6M | 0.17% | +106,081+535.5% | Added |
| Capital International Inc | 125,221 | $34.4M | 0.43% | +11,237+9.9% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 120,332 | $33.1M | 0.08% | −148,108−55.2% | Reduced |
| Novo Holdings A/S | 118,383 | $32.6M | 1.62% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 115,790 | $31.9M | 0.05% | −9,251−7.4% | Reduced |
| Adage Capital Partners GP, L.L.C. | 116,000 | $31.9M | 0.06% | −138,000−54.3% | Reduced |
| BNP Paribas Arbitrage, SA | 114,784 | $31.6M | 0.03% | −11,228−8.9% | Reduced |
| DekaBank Deutsche Girozentrale | 113,193 | $30.9M | 0.06% | −270−0.2% | Reduced |
| Frontier Capital Management Co LLC | 111,231 | $30.6M | 0.29% | −57,211−34.0% | Reduced |
| AXA S.A. | 111,216 | $30.6M | 0.09% | +241+0.2% | Added |
| Man Group plc | 109,803 | $30.2M | 0.09% | −8,107−6.9% | Reduced |
| Voya Investment Management LLC | 108,709 | $29.9M | 0.03% | −5,525−4.8% | Reduced |
| Korea Investment CORP | 107,893 | $29.7M | 0.07% | −4,490−4.0% | Reduced |
| Neuberger Berman Group LLC | 106,197 | $29.2M | 0.02% | +10,789+11.3% | Added |
| Barclays PLC | 105,185 | $28.9M | 0.01% | −26,080−19.9% | Reduced |
| Two Sigma Advisers, LP | 103,100 | $28.4M | 0.07% | −155,600−60.1% | Reduced |
| Capital International Ltd | 100,423 | $27.6M | 1.19% | +6,198+6.6% | Added |
| Telemark Asset Management, LLC | 100,000 | $27.5M | 2.78% | +100,000 | New |
| Trexquant Investment LP | 90,743 | $25.0M | 0.32% | +52,880+139.7% | Added |
| Nomura Asset Management Co Ltd | 85,445 | $23.5M | 0.07% | +6,148+7.8% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 85,305 | $23.5M | 0.03% | +6,744+8.6% | Added |
| Treasurer of the State of North Carolina | 84,605 | $23.3M | 0.09% | +5,040+6.3% | Added |