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, Q4 2021
Institutional positions in Alnylam Pharmaceuticals, Inc. as of Dec 31, 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
- 435
- +36 vs. Q3 2021
- Shares held
- 112.1M
- +547.7K (+0.5%) vs. Q3 2021
- Total value
- $19.0B
- −$2.05B (−9.7%) vs. Q3 2021
- New holders
- 77
- 156 more added
- Sold out
- 41
- 132 more reduced
8 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2021
Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q3 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Blackstone Group Inc. | 517,391 | $87.7M | 0.22% | 00.0% | Unchanged |
| Polar Capital Holdings Plc | 535,631 | $90.8M | 0.47% | +11,919+2.3% | Added |
| Nuveen Asset Management, LLC | 590,544 | $100.1M | 0.03% | −176,488−23.0% | Reduced |
| Bank of New York Mellon Corp | 602,314 | $102.1M | 0.02% | +149,064+32.9% | Added |
| Pictet Asset Management SA | 613,992 | $104.1M | 0.10% | −209,712−25.5% | Reduced |
| UBS Asset Management Americas Inc | 640,710 | $108.7M | 0.04% | −4,862−0.8% | Reduced |
| Artal Group S.A. | 650,000 | $110.2M | 3.24% | −50,000−7.1% | Reduced |
| Legal & General Group Plc | 679,570 | $115.2M | 0.03% | +12,785+1.9% | Added |
| Goldman Sachs Group Inc | 686,695 | $116.5M | 0.03% | +20,240+3.0% | Added |
| Holocene Advisors, LP | 722,739 | $122.6M | 0.65% | +61,509+9.3% | Added |
| Northern Trust Corp | 769,413 | $130.5M | 0.02% | −9,708−1.2% | Reduced |
| Gilder Gagnon Howe & Co LLC | 839,568 | $142.4M | 0.81% | −84,116−9.1% | Reduced |
| Invesco Ltd. | 890,090 | $150.9M | 0.04% | −164,082−15.6% | Reduced |
| Federated Hermes, Inc. | 992,180 | $168.3M | 0.31% | +33,360+3.5% | Added |
| Loomis Sayles & Co L P | 996,437 | $169.0M | 0.20% | +28,330+2.9% | Added |
| Casdin Capital, LLC | 1,000,000 | $169.6M | 4.78% | 00.0% | Unchanged |
| American Century Companies Inc | 1,002,574 | $170.0M | 0.11% | −68,897−6.4% | Reduced |
| Morgan Stanley | 1,065,689 | $180.7M | 0.02% | −815,190−43.3% | Reduced |
| Avoro Capital Advisors LLC | 1,075,000 | $182.3M | 3.10% | +225,000+26.5% | Added |
| Farallon Capital Management, L.L.C. | 1,190,028 | $201.8M | 1.14% | +375,727+46.1% | Added |
| Norges Bank | 1,269,191 | $215.2M | 0.04% | +274,303+27.6% | Added |
| Massachusetts Financial Services Co | 1,322,211 | $224.2M | 0.06% | −43,076−3.2% | Reduced |
| Bellevue Group AG | 1,335,140 | $226.4M | 2.33% | −73,278−5.2% | Reduced |
| Geode Capital Management, LLC | 1,505,291 | $254.9M | 0.03% | +51,272+3.5% | Added |
| Manufacturers Life Insurance Company, The | 1,702,670 | $289.1M | 0.18% | −28,763−1.7% | Reduced |
| RTW Investments, LP | 1,975,879 | $335.1M | 4.89% | +292,517+17.4% | Added |
| State Street Corp | 2,850,389 | $483.4M | 0.02% | +49,564+1.8% | Added |
| JPMorgan Chase & Co | 2,972,085 | $504.0M | 0.06% | +526,426+21.5% | Added |
| Dodge & Cox | 5,431,068 | $921.0M | 0.57% | +58,968+1.1% | Added |
| Price T Rowe Associates Inc | 6,535,368 | $1.11B | 0.10% | +661,133+11.3% | Added |
| Wellington Management Group LLP | 6,844,430 | $1.16B | 0.19% | −526,642−7.1% | Reduced |
| BlackRock Inc. | 7,671,402 | $1.30B | 0.03% | −1,249,570−14.0% | Reduced |
| Baillie Gifford & Co | 10,616,751 | $1.80B | 0.99% | +200,967+1.9% | Added |
| Vanguard Group Inc | 10,702,771 | $1.81B | 0.04% | +88,189+0.8% | Added |
| FMR LLC | 17,940,020 | $3.04B | 0.22% | +113,092+0.6% | Added |
| Alkeon Capital Management LLC | 0 | $0 | 0.00% | −390,551−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −99,512−100.0% | Sold out |
| Atika Capital Management LLC | 0 | $0 | 0.00% | −64,000−100.0% | Sold out |
| Bridger Management, LLC | 0 | $0 | 0.00% | −59,804−100.0% | Sold out |
| NN Investment Partners Holdings N.V. | 0 | $0 | 0.00% | −31,296−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −30,777−100.0% | Sold out |
| Ararat Capital Management, LP | 0 | $0 | 0.00% | −28,985−100.0% | Sold out |
| AMP Capital Investors Ltd | 0 | $0 | 0.00% | −25,424−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −16,427−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −15,991−100.0% | Sold out |
| Quantitative Investment Management, LLC | 0 | $0 | 0.00% | −14,293−100.0% | Sold out |
| Voloridge Investment Management, LLC | 0 | $0 | 0.00% | −12,506−100.0% | Sold out |
| Caption Management, LLC | 0 | $0 | 0.00% | −7,800−100.0% | Sold out |
| HealthCor Management, L.P. | 0 | $0 | 0.00% | −7,510−100.0% | Sold out |
| Bradley Foster & Sargent Inc | 0 | $0 | 0.00% | −5,223−100.0% | Sold out |
| Meeder Asset Management Inc | 0 | $0 | 0.00% | −5,104−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −4,755−100.0% | Sold out |
| Maverick Capital LtdSuperinvestorMaverick Capital | 0 | $0 | 0.00% | −3,983−100.0% | Sold out |
| Point72 Hong Kong Ltd | 0 | $0 | 0.00% | −3,900−100.0% | Sold out |
| Northstar Advisory Group, LLC | 0 | $0 | 0.00% | −3,635−100.0% | Sold out |
| Man Group plc | 0 | $0 | 0.00% | −3,443−100.0% | Sold out |
| Winton Group Ltd | 0 | $0 | 0.00% | −2,911−100.0% | Sold out |
| Bridgewater Associates, LP | 0 | $0 | 0.00% | −2,234−100.0% | Sold out |
| FORA Capital, LLC | 0 | $0 | 0.00% | −2,229−100.0% | Sold out |
| Global Retirement Partners, LLC | 0 | $0 | 0.00% | −2,034−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −1,731−100.0% | Sold out |
| Paloma Partners Management Co | 0 | $0 | 0.00% | −1,697−100.0% | Sold out |
| Meristem Family Wealth, LLC | 0 | $0 | 0.00% | −1,344−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −1,300−100.0% | Sold out |
| Phoenix Holdings Ltd. | 0 | $0 | 0.00% | −1,296−100.0% | Sold out |
| Laurel Wealth Advisors, Inc. | 0 | $0 | 0.00% | −1,137−100.0% | Sold out |
| Ethic Inc. | 0 | $0 | 0.00% | −1,122−100.0% | Sold out |
| O'Shaughnessy Asset Management, LLC | 0 | $0 | 0.00% | −220−100.0% | Sold out |
| Bessemer Group Inc | 0 | $0 | 0.00% | −39−100.0% | Sold out |
| Carroll Financial Associates, Inc. | 0 | $0 | 0.00% | −41−100.0% | Sold out |
| Meridian Wealth Partners, LLC | 0 | $0 | 0.00% | −24−100.0% | Sold out |
| Asset Dedication, LLC | 0 | $0 | 0.00% | −16−100.0% | Sold out |
| Farmers & Merchants Investments Inc | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Cordant, Inc. | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Better Money Decisions, LLC | 0 | $0 | 0.00% | −7−100.0% | Sold out |
| Gerber Kawasaki Wealth & Investment Management | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| Alexandria Capital, LLC | – | – | – | – | Not filed |
| NorthCoast Asset Management LLC | – | – | – | – | Not filed |
| B. Metzler seel. Sohn & Co. Holding AG | – | – | – | – | Not filed |
| World Asset Management Inc | – | – | – | – | Not filed |
| Green Harvest Asset Management LLC | – | – | – | – | Not filed |
| Berman Capital Advisors, LLC | – | – | – | – | Not filed |
| Towarzystwo Funduszy Inwestycyjnych Pzu SA | – | – | – | – | Not filed |
| Psagot Investment House Ltd. | – | – | – | – | Not filed |