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 2021
Institutional positions in Alnylam Pharmaceuticals, Inc. as of Sep 30, 2021. 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
- 407
- +10 vs. Q2 2021
- Shares held
- 111.7M
- +29.7K (0.0%) vs. Q2 2021
- Total value
- $21.1B
- +$2.15B (+11.4%) vs. Q2 2021
- New holders
- 51
- 155 more added
- Sold out
- 41
- 121 more reduced
4 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2021: 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 2021
Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 17,826,928 | $3.37B | 0.27% | +195,199+1.1% | Added |
| Vanguard Group Inc | 10,614,582 | $2.00B | 0.05% | +116,888+1.1% | Added |
| Baillie Gifford & Co | 10,415,784 | $1.97B | 1.03% | +190,925+1.9% | Added |
| BlackRock Inc. | 8,920,972 | $1.68B | 0.05% | +224,569+2.6% | Added |
| Wellington Management Group LLP | 7,371,072 | $1.39B | 0.24% | −1,807,417−19.7% | Reduced |
| Price T Rowe Associates Inc | 5,874,235 | $1.11B | 0.10% | +349,557+6.3% | Added |
| Dodge & Cox | 5,372,100 | $1.01B | 0.66% | −41,901−0.8% | Reduced |
| State Street Corp | 2,800,825 | $528.8M | 0.03% | +15,887+0.6% | Added |
| JPMorgan Chase & Co | 2,445,659 | $461.8M | 0.06% | −142,851−5.5% | Reduced |
| Morgan Stanley | 1,880,879 | $355.1M | 0.05% | −1,772−0.1% | Reduced |
| Manufacturers Life Insurance Company, The | 1,731,433 | $326.9M | 0.27% | −24,375−1.4% | Reduced |
| RTW Investments, LP | 1,683,362 | $317.8M | 4.79% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 1,454,019 | $274.1M | 0.04% | +8,001+0.6% | Added |
| Bellevue Group AG | 1,408,418 | $265.9M | 2.70% | −140,674−9.1% | Reduced |
| Massachusetts Financial Services Co | 1,365,287 | $257.8M | 0.08% | −9,856−0.7% | Reduced |
| American Century Companies Inc | 1,071,471 | $202.3M | 0.14% | +25,281+2.4% | Added |
| Invesco Ltd. | 1,054,172 | $199.0M | 0.05% | +52,271+5.2% | Added |
| Casdin Capital, LLC | 1,000,000 | $188.8M | 4.71% | 00.0% | Unchanged |
| Norges Bank | 994,888 | $187.8M | 0.04% | +100,136+11.2% | Added |
| Loomis Sayles & Co L P | 968,107 | $182.8M | 0.22% | +22,042+2.3% | Added |
| Federated Hermes, Inc. | 958,820 | $181.0M | 0.34% | −23,258−2.4% | Reduced |
| Gilder Gagnon Howe & Co LLC | 923,684 | $174.4M | 0.90% | −2,042−0.2% | Reduced |
| Avoro Capital Advisors LLC | 850,000 | $160.5M | 2.52% | −150,000−15.0% | Reduced |
| Pictet Asset Management SA | 823,704 | $155.5M | 0.17% | +823,704 | New |
| Farallon Capital Management, L.L.C. | 814,301 | $153.7M | 0.83% | −135,699−14.3% | Reduced |
| Northern Trust Corp | 779,121 | $147.1M | 0.03% | +70,615+10.0% | Added |
| Nuveen Asset Management, LLC | 767,032 | $144.8M | 0.05% | +114,024+17.5% | Added |
| Artal Group S.A. | 700,000 | $132.2M | 3.25% | −50,000−6.7% | Reduced |
| Legal & General Group Plc | 666,785 | $125.9M | 0.04% | −16,625−2.4% | Reduced |
| Goldman Sachs Group Inc | 666,455 | $125.8M | 0.03% | −35,591−5.1% | Reduced |
| Holocene Advisors, LP | 661,230 | $124.8M | 0.72% | +105,991+19.1% | Added |
| UBS Asset Management Americas Inc | 645,572 | $121.9M | 0.05% | +22,344+3.6% | Added |
| First Trust Advisors LP | 532,286 | $100.5M | 0.11% | +26,363+5.2% | Added |
| Polar Capital Holdings Plc | 523,712 | $98.9M | 0.54% | +195,430+59.5% | Added |
| Blackstone Group Inc. | 517,391 | $97.7M | 0.22% | 00.0% | Unchanged |
| Mitsubishi UFJ Trust & Banking Corp | 486,848 | $91.9M | 0.20% | −11,814−2.4% | Reduced |
| Swiss National Bank | 464,610 | $87.7M | 0.06% | −12,300−2.6% | Reduced |
| Bank of New York Mellon Corp | 453,250 | $85.6M | 0.02% | +11,249+2.5% | Added |
| Swedbank AB | 436,498 | $82.4M | 0.15% | +90,986+26.3% | Added |
| Avidity Partners Management LP | 427,000 | $80.6M | 2.06% | +232,000+119.0% | Added |
| Alkeon Capital Management LLC | 390,551 | $73.7M | 0.25% | −268,031−40.7% | Reduced |
| Charles Schwab Investment Management Inc | 352,815 | $66.6M | 0.02% | +9,484+2.8% | Added |
| Assenagon Asset Management S.A. | 334,289 | $63.1M | 0.26% | +50,489+17.8% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 332,571 | $62.8M | 0.04% | −15,344−4.4% | Reduced |
| California Public Employees Retirement System | 318,959 | $60.2M | 0.04% | +1,267+0.4% | Added |
| Capital World Investors | 318,946 | $60.2M | 0.01% | 00.0% | Unchanged |
| Rockefeller Capital Management L.P. | 318,100 | $60.1M | 0.32% | −79,209−19.9% | Reduced |
| Rock Springs Capital Management LP | 311,000 | $58.7M | 1.23% | +11,000+3.7% | Added |
| Bank of America Corp | 304,184 | $57.4M | 0.01% | +1,403+0.5% | Added |
| Deutsche Bank AG | 282,162 | $53.3M | 0.03% | +17,319+6.5% | Added |
| Lord, Abbett & Co. LLC | 280,000 | $52.9M | 0.13% | +280,000 | New |
| Amundi | 260,369 | $49.2M | 0.03% | +46,060+21.5% | Added |
| Eagle Asset Management Inc | 253,781 | $47.9M | 0.22% | −2,128−0.8% | Reduced |
| Artisan Partners Limited Partnership | 242,784 | $45.8M | 0.06% | +4,202+1.8% | Added |
| TD Asset Management Inc | 234,684 | $44.3M | 0.05% | +10,584+4.7% | Added |
| Parametric Portfolio Associates LLC | 208,537 | $39.4M | 0.02% | +9,852+5.0% | Added |
| California State Teachers Retirement System | 205,392 | $38.8M | 0.05% | −4,439−2.1% | Reduced |
| Tekla Capital Management LLC | 189,695 | $35.8M | 1.15% | +55,200+41.0% | Added |
| Dimensional Fund Advisors LP | 187,263 | $35.4M | 0.01% | −17,736−8.7% | Reduced |
| National Pension Service | 181,103 | $34.2M | 0.07% | −1,758−1.0% | Reduced |
| New York State Common Retirement Fund | 180,924 | $34.2M | 0.04% | −3,196−1.7% | Reduced |
| Ensign Peak Advisors, Inc | 168,599 | $31.8M | 0.07% | −4,144−2.4% | Reduced |
| AXA S.A. | 161,432 | $30.5M | 0.09% | +42,426+35.7% | Added |
| Credit Suisse AG | 157,686 | $29.8M | 0.02% | −27,625−14.9% | Reduced |
| State Board of Administration of Florida Retirement System | 150,084 | $28.3M | 0.06% | −2,788−1.8% | Reduced |
| Franklin Resources Inc | 149,655 | $28.3M | 0.01% | +146,050+4,051.3% | Added |
| Wells Fargo & Company | 136,250 | $25.7M | 0.01% | −10,570−7.2% | Reduced |
| Candriam Luxembourg S.C.A. | 133,079 | $25.1M | 0.17% | −41,743−23.9% | Reduced |
| Alexandria Capital, LLC | 122,216 | $23.1M | 2.14% | −3,473−2.8% | Reduced |
| CIBC Private Wealth Group, LLC | 119,145 | $22.5M | 0.05% | +429+0.4% | Added |
| Rhumbline Advisers | 116,109 | $21.9M | 0.03% | −306−0.3% | Reduced |
| Natixis | 102,516 | $19.4M | 0.07% | +94,044+1,110.1% | Added |
| Rhenman & Partners Asset Management AB | 100,000 | $18.9M | 1.33% | −35,000−25.9% | Reduced |
| Point72 Asset Management, L.P. | 99,512 | $18.8M | 0.09% | −20,177−16.9% | Reduced |
| State of Wisconsin Investment Board | 99,390 | $18.8M | 0.04% | −15,742−13.7% | Reduced |
| Barclays PLC | 97,475 | $18.4M | 0.01% | −5,551−5.4% | Reduced |
| Van Eck Associates Corp | 92,701 | $17.5M | 0.04% | −27,921−23.1% | Reduced |
| Canada Pension Plan Investment Board | 91,288 | $17.2M | 0.02% | +51,598+130.0% | Added |
| Eagle Health Investments LP | 90,102 | $17.0M | 5.40% | −18,077−16.7% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 84,463 | $15.9M | 0.04% | +16,867+25.0% | Added |
| Parnassus Investments | 77,587 | $14.6M | 0.03% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 77,181 | $14.6M | 0.03% | +57,144+285.2% | Added |
| Treasurer of the State of North Carolina | 76,304 | $14.4M | 0.08% | +3,329+4.6% | Added |
| Sectoral Asset Management Inc | 75,846 | $14.3M | 1.19% | −2,000−2.6% | Reduced |
| USS Investment Management Ltd | 75,740 | $14.3M | 0.12% | +18,882+33.2% | Added |
| Morningstar Investment Services LLC | 80,594 | $14.3M | 0.17% | +1,427+1.8% | Added |
| International Biotechnology Trust PLC | 75,000 | $14.2M | 3.48% | −74,000−49.7% | Reduced |
| Parkman Healthcare Partners LLC | 74,967 | $14.2M | 3.58% | 00.0% | Unchanged |
| State of New Jersey Common Pension Fund D | 71,899 | $13.6M | 0.04% | 00.0% | Unchanged |
| Citigroup Inc | 70,992 | $13.4M | 0.01% | −12,160−14.6% | Reduced |
| Great West Life Assurance Co | 67,216 | $12.8M | 0.03% | −3,652−5.2% | Reduced |
| Public Employees Retirement System of Ohio | 67,010 | $12.7M | 0.04% | +49+0.1% | Added |
| Alliancebernstein L.P. | 66,686 | $12.6M | 0.00% | +4,765+7.7% | Added |
| Atika Capital Management LLC | 64,000 | $12.1M | 0.86% | +64,000 | New |
| Bridger Management, LLC | 59,804 | $11.3M | 1.32% | −51,500−46.3% | Reduced |
| Eversept Partners, LP | 59,233 | $11.2M | 0.90% | +8,097+15.8% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 58,250 | $11.0M | 0.04% | +6,595+12.8% | Added |
| Russell Investments Group, Ltd. | 57,777 | $10.6M | 0.02% | +3,836+7.1% | Added |
| Victory Capital Management Inc | 55,878 | $10.6M | 0.01% | +14,756+35.9% | Added |
| Allianz Asset Management GmbH | 55,554 | $10.5M | 0.01% | +20,955+60.6% | Added |