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 |
|---|---|---|---|---|---|
| Russell Investments Group, Ltd. | 53,941 | $9.05M | 0.02% | −3,269−5.7% | Reduced |
| Macquarie Group Ltd | 53,593 | $9.09M | 0.01% | +100+0.2% | Added |
| Storebrand Asset Management AS | 54,952 | $9.32M | 0.05% | 00.0% | Unchanged |
| 683 Capital Management, LLC | 55,000 | $9.32M | 0.46% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 56,655 | $9.61M | 0.00% | +7,274+14.7% | Added |
| USS Investment Management Ltd | 56,858 | $9.63M | 0.08% | +49,900+717.2% | Added |
| Sector Gamma AS | 58,017 | $9.84M | 1.74% | −1,772−3.0% | Reduced |
| Jane Street Group, LLC | 59,901 | $10.2M | 0.03% | +42,101+236.5% | Added |
| Alliancebernstein L.P. | 61,921 | $10.5M | 0.00% | −5,798−8.6% | Reduced |
| Public Employees Retirement System of Ohio | 66,961 | $11.4M | 0.04% | +4,712+7.6% | Added |
| Mirae Asset Global Investments Co., Ltd. | 67,596 | $11.5M | 0.03% | +11,732+21.0% | Added |
| Great West Life Assurance Co | 70,868 | $12.0M | 0.03% | −8,697−10.9% | Reduced |
| DekaBank Deutsche Girozentrale | 73,591 | $12.1M | 0.04% | −104−0.1% | Reduced |
| State of New Jersey Common Pension Fund D | 71,899 | $12.2M | 0.04% | +611+0.9% | Added |
| Treasurer of the State of North Carolina | 72,975 | $12.4M | 0.07% | +1,010+1.4% | Added |
| Parkman Healthcare Partners LLC | 74,967 | $12.7M | 2.78% | +9,924+15.3% | Added |
| Morningstar Investment Services LLC | 79,167 | $13.1M | 0.16% | +2,617+3.4% | Added |
| Parnassus Investments | 77,587 | $13.2M | 0.03% | 00.0% | Unchanged |
| Sectoral Asset Management Inc | 77,846 | $13.2M | 1.07% | −31,900−29.1% | Reduced |
| Citigroup Inc | 83,152 | $14.1M | 0.01% | −2,325−2.7% | Reduced |
| Alberta Investment Management Corp | 84,800 | $14.4M | 0.12% | −4,000−4.5% | Reduced |
| Barclays PLC | 103,026 | $17.5M | 0.01% | +25,161+32.3% | Added |
| 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 |
| Marshall Wace North America L.P. | 108,585 | $18.4M | 0.08% | +108,585 | New |
| Bridger Management, LLC | 111,304 | $18.9M | 1.76% | −115,200−50.9% | Reduced |
| State of Wisconsin Investment Board | 115,132 | $19.5M | 0.04% | −6,725−5.5% | Reduced |
| Rhumbline Advisers | 116,415 | $19.7M | 0.03% | −5,608−4.6% | Reduced |
| CIBC Private Wealth Group, LLC | 118,716 | $20.1M | 0.05% | −7,544−6.0% | Reduced |
| AXA S.A. | 119,006 | $20.2M | 0.06% | −39,466−24.9% | Reduced |
| Point72 Asset Management, L.P. | 119,689 | $20.3M | 0.10% | −320,248−72.8% | Reduced |
| Van Eck Associates Corp | 120,622 | $20.4M | 0.05% | +20,368+20.3% | Added |
| Alexandria Capital, LLC | 125,689 | $21.3M | 1.98% | −1,742−1.4% | Reduced |
| Tekla Capital Management LLC | 134,495 | $22.8M | 0.74% | −20,407−13.2% | Reduced |
| Rhenman & Partners Asset Management AB | 135,000 | $22.9M | 1.55% | 00.0% | Unchanged |
| Wells Fargo & Company | 146,820 | $24.9M | 0.01% | −8,690−5.6% | Reduced |
| International Biotechnology Trust PLC | 149,000 | $25.2M | 6.74% | +40,200+36.9% | Added |
| State Board of Administration of Florida Retirement System | 152,872 | $25.9M | 0.05% | −1,904−1.2% | Reduced |
| Ensign Peak Advisors, Inc | 172,743 | $29.3M | 0.06% | +4,942+2.9% | Added |
| Candriam Luxembourg S.C.A. | 174,822 | $29.6M | 0.20% | +12,264+7.5% | Added |
| National Pension Service | 182,861 | $31.0M | 0.06% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 184,120 | $31.2M | 0.03% | −334−0.2% | Reduced |
| Credit Suisse AG | 185,311 | $31.4M | 0.02% | −41,886−18.4% | Reduced |
| Avidity Partners Management LP | 195,000 | $33.1M | 0.89% | −232,969−54.4% | Reduced |
| Parametric Portfolio Associates LLC | 198,685 | $33.7M | 0.02% | +17,743+9.8% | Added |
| Dimensional Fund Advisors LP | 204,999 | $34.7M | 0.01% | −22,703−10.0% | Reduced |
| California State Teachers Retirement System | 209,831 | $35.6M | 0.04% | −6,445−3.0% | Reduced |
| Amundi | 214,309 | $36.3M | 0.03% | +214,309 | New |
| TD Asset Management Inc | 224,100 | $40.1M | 0.04% | +32,078+16.7% | Added |
| Artisan Partners Limited Partnership | 238,582 | $40.4M | 0.05% | +10,394+4.6% | Added |
| Eagle Asset Management Inc | 255,909 | $43.4M | 0.19% | −249−0.1% | Reduced |
| Deutsche Bank AG | 264,843 | $44.9M | 0.02% | +6,261+2.4% | Added |
| Assenagon Asset Management S.A. | 283,800 | $48.1M | 0.21% | +160,032+129.3% | Added |
| Maverick Capital LtdSuperinvestorMaverick Capital | 292,683 | $49.6M | 0.47% | −503,551−63.2% | Reduced |
| Rock Springs Capital Management LP | 300,000 | $50.9M | 1.01% | 00.0% | Unchanged |
| Bank of America Corp | 302,781 | $51.3M | 0.01% | +18,090+6.4% | Added |
| California Public Employees Retirement System | 317,692 | $53.9M | 0.04% | −2,355−0.7% | Reduced |
| Capital World Investors | 318,946 | $54.1M | 0.01% | −33,600−9.5% | Reduced |
| Polar Capital Holdings Plc | 328,282 | $55.6M | 0.30% | +129,782+65.4% | Added |
| Charles Schwab Investment Management Inc | 343,331 | $58.2M | 0.02% | +9,118+2.7% | Added |
| Swedbank AB | 345,512 | $58.6M | 0.11% | +5,193+1.5% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 347,915 | $59.0M | 0.03% | −22,469−6.1% | Reduced |
| Rockefeller Capital Management L.P. | 397,309 | $67.3M | 0.38% | −3,251−0.8% | Reduced |
| Bank of New York Mellon Corp | 442,001 | $74.9M | 0.01% | +20,187+4.8% | Added |
| Swiss National Bank | 476,910 | $80.8M | 0.05% | +30,086+6.7% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 498,662 | $84.5M | 0.18% | −23,429−4.5% | Reduced |
| First Trust Advisors LP | 505,923 | $85.8M | 0.09% | +73,793+17.1% | Added |
| Blackstone Group Inc. | 517,391 | $87.7M | 0.21% | −120,436−18.9% | Reduced |
| Holocene Advisors, LP | 555,239 | $94.1M | 0.58% | +555,239 | New |
| UBS Asset Management Americas Inc | 623,228 | $105.6M | 0.05% | −42,301−6.4% | Reduced |
| Pictet Asset Management Ltd | 652,313 | $110.6M | 0.12% | +194,900+42.6% | Added |
| Nuveen Asset Management, LLC | 653,008 | $110.7M | 0.03% | +57,008+9.6% | Added |
| Alkeon Capital Management LLC | 658,582 | $111.6M | 0.40% | 00.0% | Unchanged |
| Legal & General Group Plc | 683,410 | $115.9M | 0.04% | +36,972+5.7% | Added |
| Goldman Sachs Group Inc | 702,046 | $119.0M | 0.03% | +7,736+1.1% | Added |
| Northern Trust Corp | 708,506 | $120.1M | 0.02% | −41,706−5.6% | Reduced |
| Artal Group S.A. | 750,000 | $127.1M | 2.89% | 00.0% | Unchanged |
| Norges Bank | 894,752 | $151.7M | 0.03% | −67,552−7.0% | Reduced |
| Gilder Gagnon Howe & Co LLC | 925,726 | $156.9M | 0.77% | −3,917−0.4% | Reduced |
| Loomis Sayles & Co L P | 946,065 | $160.4M | 0.19% | +946,065 | New |
| Farallon Capital Management, L.L.C. | 950,000 | $161.0M | 0.78% | +250,000+35.7% | Added |
| Federated Hermes, Inc. | 982,078 | $166.5M | 0.31% | −6,640−0.7% | 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 |
| Invesco Ltd. | 1,001,901 | $169.8M | 0.04% | −214,202−17.6% | Reduced |
| American Century Companies Inc | 1,046,190 | $177.3M | 0.12% | −48,331−4.4% | Reduced |
| Massachusetts Financial Services Co | 1,375,143 | $233.1M | 0.07% | −86,919−5.9% | Reduced |
| Geode Capital Management, LLC | 1,446,018 | $244.8M | 0.03% | +59,719+4.3% | Added |
| Bellevue Group AG | 1,549,092 | $262.6M | 2.56% | −78,022−4.8% | Reduced |
| RTW Investments, LP | 1,683,362 | $285.4M | 4.31% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 1,755,808 | $297.6M | 0.24% | +150,950+9.4% | Added |
| Morgan Stanley | 1,882,651 | $319.1M | 0.04% | +96,697+5.4% | Added |
| JPMorgan Chase & Co | 2,588,510 | $438.8M | 0.06% | +410,109+18.8% | Added |
| State Street Corp | 2,784,938 | $472.1M | 0.02% | +154,082+5.9% | Added |
| Dodge & Cox | 5,414,001 | $917.8M | 0.60% | +1,092,374+25.3% | Added |
| Price T Rowe Associates Inc | 5,524,678 | $936.5M | 0.09% | −50,535−0.9% | Reduced |
| BlackRock Inc. | 8,696,403 | $1.47B | 0.04% | −316,082−3.5% | Reduced |
| Wellington Management Group LLP | 9,178,489 | $1.56B | 0.26% | +30,539+0.3% | Added |
| Baillie Gifford & Co | 10,224,859 | $1.73B | 0.84% | +149,896+1.5% | Added |
| Vanguard Group Inc | 10,497,694 | $1.78B | 0.04% | −88,127−0.8% | Reduced |