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, Q2 2021
Institutional positions in Alnylam Pharmaceuticals, Inc. as of Jun 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
- 401
- +11 vs. Q1 2021
- Shares held
- 112.3M
- +3.08M (+2.8%) vs. Q1 2021
- Total value
- $19.0B
- +$3.63B (+23.5%) vs. Q1 2021
- New holders
- 55
- 139 more added
- Sold out
- 44
- 133 more reduced
1 institution that held it in Q1 2021 haven't filed for Q2 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2021
Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 17,631,729 | $2.99B | 0.23% | +81,828+0.5% | Added |
| Vanguard Group Inc | 10,497,694 | $1.78B | 0.04% | −88,127−0.8% | Reduced |
| Baillie Gifford & Co | 10,224,859 | $1.73B | 0.84% | +149,896+1.5% | Added |
| Wellington Management Group LLP | 9,178,489 | $1.56B | 0.26% | +30,539+0.3% | Added |
| BlackRock Inc. | 8,696,403 | $1.47B | 0.04% | −316,082−3.5% | Reduced |
| Price T Rowe Associates Inc | 5,524,678 | $936.5M | 0.09% | −50,535−0.9% | Reduced |
| Dodge & Cox | 5,414,001 | $917.8M | 0.60% | +1,092,374+25.3% | Added |
| State Street Corp | 2,784,938 | $472.1M | 0.02% | +154,082+5.9% | Added |
| JPMorgan Chase & Co | 2,588,510 | $438.8M | 0.06% | +410,109+18.8% | Added |
| Morgan Stanley | 1,882,651 | $319.1M | 0.04% | +96,697+5.4% | Added |
| Manufacturers Life Insurance Company, The | 1,755,808 | $297.6M | 0.24% | +150,950+9.4% | Added |
| RTW Investments, LP | 1,683,362 | $285.4M | 4.31% | 00.0% | Unchanged |
| Bellevue Group AG | 1,549,092 | $262.6M | 2.56% | −78,022−4.8% | Reduced |
| Geode Capital Management, LLC | 1,446,018 | $244.8M | 0.03% | +59,719+4.3% | Added |
| Massachusetts Financial Services Co | 1,375,143 | $233.1M | 0.07% | −86,919−5.9% | Reduced |
| American Century Companies Inc | 1,046,190 | $177.3M | 0.12% | −48,331−4.4% | Reduced |
| Invesco Ltd. | 1,001,901 | $169.8M | 0.04% | −214,202−17.6% | Reduced |
| Casdin Capital, LLC | 1,000,000 | $169.5M | 4.30% | +120,000+13.6% | Added |
| Avoro Capital Advisors LLC | 1,000,000 | $169.5M | 2.95% | +1,000,000 | New |
| Federated Hermes, Inc. | 982,078 | $166.5M | 0.31% | −6,640−0.7% | Reduced |
| Farallon Capital Management, L.L.C. | 950,000 | $161.0M | 0.78% | +250,000+35.7% | Added |
| Loomis Sayles & Co L P | 946,065 | $160.4M | 0.19% | +946,065 | New |
| Gilder Gagnon Howe & Co LLC | 925,726 | $156.9M | 0.77% | −3,917−0.4% | Reduced |
| Norges Bank | 894,752 | $151.7M | 0.03% | −67,552−7.0% | Reduced |
| Artal Group S.A. | 750,000 | $127.1M | 2.89% | 00.0% | Unchanged |
| Northern Trust Corp | 708,506 | $120.1M | 0.02% | −41,706−5.6% | Reduced |
| Goldman Sachs Group Inc | 702,046 | $119.0M | 0.03% | +7,736+1.1% | Added |
| Legal & General Group Plc | 683,410 | $115.9M | 0.04% | +36,972+5.7% | Added |
| Alkeon Capital Management LLC | 658,582 | $111.6M | 0.40% | 00.0% | Unchanged |
| Nuveen Asset Management, LLC | 653,008 | $110.7M | 0.03% | +57,008+9.6% | Added |
| Pictet Asset Management Ltd | 652,313 | $110.6M | 0.12% | +194,900+42.6% | Added |
| UBS Asset Management Americas Inc | 623,228 | $105.6M | 0.05% | −42,301−6.4% | Reduced |
| Holocene Advisors, LP | 555,239 | $94.1M | 0.58% | +555,239 | New |
| Blackstone Group Inc. | 517,391 | $87.7M | 0.21% | −120,436−18.9% | Reduced |
| First Trust Advisors LP | 505,923 | $85.8M | 0.09% | +73,793+17.1% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 498,662 | $84.5M | 0.18% | −23,429−4.5% | Reduced |
| Swiss National Bank | 476,910 | $80.8M | 0.05% | +30,086+6.7% | Added |
| Bank of New York Mellon Corp | 442,001 | $74.9M | 0.01% | +20,187+4.8% | Added |
| Rockefeller Capital Management L.P. | 397,309 | $67.3M | 0.38% | −3,251−0.8% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 347,915 | $59.0M | 0.03% | −22,469−6.1% | Reduced |
| Swedbank AB | 345,512 | $58.6M | 0.11% | +5,193+1.5% | Added |
| Charles Schwab Investment Management Inc | 343,331 | $58.2M | 0.02% | +9,118+2.7% | Added |
| Polar Capital Holdings Plc | 328,282 | $55.6M | 0.30% | +129,782+65.4% | Added |
| Capital World Investors | 318,946 | $54.1M | 0.01% | −33,600−9.5% | Reduced |
| California Public Employees Retirement System | 317,692 | $53.9M | 0.04% | −2,355−0.7% | Reduced |
| Bank of America Corp | 302,781 | $51.3M | 0.01% | +18,090+6.4% | Added |
| Rock Springs Capital Management LP | 300,000 | $50.9M | 1.01% | 00.0% | Unchanged |
| Maverick Capital LtdSuperinvestorMaverick Capital | 292,683 | $49.6M | 0.47% | −503,551−63.2% | Reduced |
| Assenagon Asset Management S.A. | 283,800 | $48.1M | 0.21% | +160,032+129.3% | Added |
| Deutsche Bank AG | 264,843 | $44.9M | 0.02% | +6,261+2.4% | Added |
| Eagle Asset Management Inc | 255,909 | $43.4M | 0.19% | −249−0.1% | Reduced |
| Artisan Partners Limited Partnership | 238,582 | $40.4M | 0.05% | +10,394+4.6% | Added |
| TD Asset Management Inc | 224,100 | $40.1M | 0.04% | +32,078+16.7% | Added |
| Amundi | 214,309 | $36.3M | 0.03% | +214,309 | New |
| California State Teachers Retirement System | 209,831 | $35.6M | 0.04% | −6,445−3.0% | Reduced |
| Dimensional Fund Advisors LP | 204,999 | $34.7M | 0.01% | −22,703−10.0% | Reduced |
| Parametric Portfolio Associates LLC | 198,685 | $33.7M | 0.02% | +17,743+9.8% | Added |
| Avidity Partners Management LP | 195,000 | $33.1M | 0.89% | −232,969−54.4% | Reduced |
| Credit Suisse AG | 185,311 | $31.4M | 0.02% | −41,886−18.4% | Reduced |
| New York State Common Retirement Fund | 184,120 | $31.2M | 0.03% | −334−0.2% | Reduced |
| National Pension Service | 182,861 | $31.0M | 0.06% | 00.0% | Unchanged |
| Candriam Luxembourg S.C.A. | 174,822 | $29.6M | 0.20% | +12,264+7.5% | Added |
| Ensign Peak Advisors, Inc | 172,743 | $29.3M | 0.06% | +4,942+2.9% | Added |
| State Board of Administration of Florida Retirement System | 152,872 | $25.9M | 0.05% | −1,904−1.2% | Reduced |
| International Biotechnology Trust PLC | 149,000 | $25.2M | 6.74% | +40,200+36.9% | Added |
| Wells Fargo & Company | 146,820 | $24.9M | 0.01% | −8,690−5.6% | Reduced |
| Rhenman & Partners Asset Management AB | 135,000 | $22.9M | 1.55% | 00.0% | Unchanged |
| Tekla Capital Management LLC | 134,495 | $22.8M | 0.74% | −20,407−13.2% | Reduced |
| Alexandria Capital, LLC | 125,689 | $21.3M | 1.98% | −1,742−1.4% | Reduced |
| Van Eck Associates Corp | 120,622 | $20.4M | 0.05% | +20,368+20.3% | Added |
| Point72 Asset Management, L.P. | 119,689 | $20.3M | 0.10% | −320,248−72.8% | Reduced |
| AXA S.A. | 119,006 | $20.2M | 0.06% | −39,466−24.9% | Reduced |
| CIBC Private Wealth Group, LLC | 118,716 | $20.1M | 0.05% | −7,544−6.0% | Reduced |
| Rhumbline Advisers | 116,415 | $19.7M | 0.03% | −5,608−4.6% | Reduced |
| State of Wisconsin Investment Board | 115,132 | $19.5M | 0.04% | −6,725−5.5% | Reduced |
| Bridger Management, LLC | 111,304 | $18.9M | 1.76% | −115,200−50.9% | Reduced |
| Marshall Wace North America L.P. | 108,585 | $18.4M | 0.08% | +108,585 | New |
| Eagle Health Investments LP | 108,179 | $18.3M | 6.29% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 108,181 | $18.3M | 0.02% | +41,507+62.3% | Added |
| Barclays PLC | 103,026 | $17.5M | 0.01% | +25,161+32.3% | Added |
| Alberta Investment Management Corp | 84,800 | $14.4M | 0.12% | −4,000−4.5% | Reduced |
| Citigroup Inc | 83,152 | $14.1M | 0.01% | −2,325−2.7% | Reduced |
| Sectoral Asset Management Inc | 77,846 | $13.2M | 1.07% | −31,900−29.1% | Reduced |
| Parnassus Investments | 77,587 | $13.2M | 0.03% | 00.0% | Unchanged |
| Morningstar Investment Services LLC | 79,167 | $13.1M | 0.16% | +2,617+3.4% | Added |
| Parkman Healthcare Partners LLC | 74,967 | $12.7M | 2.78% | +9,924+15.3% | Added |
| Treasurer of the State of North Carolina | 72,975 | $12.4M | 0.07% | +1,010+1.4% | Added |
| State of New Jersey Common Pension Fund D | 71,899 | $12.2M | 0.04% | +611+0.9% | Added |
| DekaBank Deutsche Girozentrale | 73,591 | $12.1M | 0.04% | −104−0.1% | Reduced |
| Great West Life Assurance Co | 70,868 | $12.0M | 0.03% | −8,697−10.9% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 67,596 | $11.5M | 0.03% | +11,732+21.0% | Added |
| Public Employees Retirement System of Ohio | 66,961 | $11.4M | 0.04% | +4,712+7.6% | Added |
| Alliancebernstein L.P. | 61,921 | $10.5M | 0.00% | −5,798−8.6% | Reduced |
| Jane Street Group, LLC | 59,901 | $10.2M | 0.03% | +42,101+236.5% | Added |
| Sector Gamma AS | 58,017 | $9.84M | 1.74% | −1,772−3.0% | Reduced |
| USS Investment Management Ltd | 56,858 | $9.63M | 0.08% | +49,900+717.2% | Added |
| Ameriprise Financial Inc | 56,655 | $9.61M | 0.00% | +7,274+14.7% | Added |
| 683 Capital Management, LLC | 55,000 | $9.32M | 0.46% | 00.0% | Unchanged |
| Storebrand Asset Management AS | 54,952 | $9.32M | 0.05% | 00.0% | Unchanged |
| Macquarie Group Ltd | 53,593 | $9.09M | 0.01% | +100+0.2% | Added |