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, Q1 2023
Institutional positions in Alnylam Pharmaceuticals, Inc. as of Mar 31, 2023. 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
- 478
- 0 vs. Q4 2022
- Shares held
- 119.6M
- +131.7K (+0.1%) vs. Q4 2022
- Total value
- $24.0B
- −$4.42B (−15.6%) vs. Q4 2022
- New holders
- 53
- 174 more added
- Sold out
- 53
- 170 more reduced
11 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2022: 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, Q1 2023
Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Man Group plc | – | $26.3M | 0.09% | – | – |
| Credit Suisse AG | 132,073 | $26.5M | 0.03% | +5,994+4.8% | Added |
| Squarepoint Ops LLC | 133,228 | $26.7M | 0.19% | +131,019+5,931.1% | Added |
| Eagle Health Investments LP | 136,756 | $27.4M | 5.33% | −18,960−12.2% | Reduced |
| State Board of Administration of Florida Retirement System | 137,022 | $27.4M | 0.06% | −100.0% | Reduced |
| Voloridge Investment Management, LLC | 141,388 | $28.3M | 0.14% | −68,623−32.7% | Reduced |
| Barclays PLC | 141,595 | $28.4M | 0.03% | −20,539−12.7% | Reduced |
| Tekla Capital Management LLC | 143,214 | $28.7M | 1.09% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 148,088 | $29.7M | 0.04% | −6,610−4.3% | Reduced |
| National Pension Service | 156,230 | $30.5M | 0.06% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 155,100 | $31.1M | 0.08% | +35,100+29.3% | Added |
| Rhumbline Advisers | 157,895 | $31.6M | 0.04% | +9,499+6.4% | Added |
| Franklin Resources Inc | 160,795 | $32.2M | 0.02% | −500.0% | Reduced |
| Two Sigma Investments, LP | 167,346 | $33.5M | 0.10% | −15,361−8.4% | Reduced |
| Canada Pension Plan Investment Board | 169,198 | $33.9M | 0.05% | +107,075+172.4% | Added |
| Handelsbanken Fonder AB | 171,289 | $34.3M | 0.20% | −21,005−10.9% | Reduced |
| Voya Investment Management LLC | 172,640 | $34.6M | 0.04% | −12,559−6.8% | Reduced |
| AXA S.A. | 173,766 | $34.8M | 0.12% | −27,650−13.7% | Reduced |
| State of Wisconsin Investment Board | 182,807 | $36.6M | 0.11% | +97,373+114.0% | Added |
| Ameriprise Financial Inc | 203,170 | $40.7M | 0.01% | +155,795+328.9% | Added |
| California State Teachers Retirement System | 203,262 | $40.7M | 0.06% | +1,531+0.8% | Added |
| Assenagon Asset Management S.A. | 215,191 | $43.1M | 0.17% | +207,364+2,649.3% | Added |
| Royal Bank of Canada | 216,159 | $43.3M | 0.01% | +19,579+10.0% | Added |
| Dimensional Fund Advisors LP | 218,479 | $43.8M | 0.01% | +23,903+12.3% | Added |
| Goldman Sachs Group Inc | 230,186 | $46.1M | 0.01% | −162,575−41.4% | Reduced |
| D. E. Shaw & Co., Inc. | 231,345 | $46.3M | 0.07% | +54,929+31.1% | Added |
| California Public Employees Retirement System | 237,113 | $47.5M | 0.04% | −33,770−12.5% | Reduced |
| Wells Fargo & Company | 244,466 | $49.0M | 0.02% | +45,050+22.6% | Added |
| Balyasny Asset Management LLC | 251,798 | $50.4M | 0.17% | +251,279+48,416.0% | Added |
| Eagle Asset Management Inc | 263,448 | $52.8M | 0.31% | −225−0.1% | Reduced |
| Casdin Capital, LLC | 270,000 | $54.1M | 4.47% | −95,000−26.0% | Reduced |
| CI Private Wealth, LLC | 272,882 | $54.7M | 0.15% | +270,010+9,401.5% | Added |
| Janus Henderson Group PLC | 298,843 | $59.9M | 0.04% | −166,545−35.8% | Reduced |
| Candriam Luxembourg S.C.A. | 328,291 | $60.5M | 0.42% | +7,796+2.4% | Added |
| Polar Capital Holdings Plc | 311,918 | $62.5M | 0.46% | +14,418+4.8% | Added |
| Swedbank AB | 333,942 | $66.9M | 0.13% | −92,711−21.7% | Reduced |
| Manufacturers Life Insurance Company, The | 337,528 | $67.6M | 0.04% | −5,692−1.7% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 340,967 | $68.3M | 0.05% | +3,991+1.2% | Added |
| Rock Springs Capital Management LP | 345,000 | $69.1M | 1.65% | +12,500+3.8% | Added |
| TD Asset Management Inc | 359,864 | $72.1M | 0.09% | −32,586−8.3% | Reduced |
| Invesco Ltd. | 367,375 | $73.6M | 0.02% | −302,474−45.2% | Reduced |
| Charles Schwab Investment Management Inc | 405,363 | $81.2M | 0.02% | +4,787+1.2% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 407,934 | $81.7M | 0.20% | −52,241−11.4% | Reduced |
| American Century Companies Inc | 444,608 | $85.1M | 0.07% | −255,187−36.5% | Reduced |
| First Trust Advisors LP | 430,087 | $86.2M | 0.10% | +9,527+2.3% | Added |
| Deutsche Bank AG | 459,566 | $92.1M | 0.05% | −5,487−1.2% | Reduced |
| Swiss National Bank | 488,300 | $97.8M | 0.07% | +2000.0% | Added |
| Alliancebernstein L.P. | 535,959 | $107.4M | 0.05% | +464,775+652.9% | Added |
| Bank of New York Mellon Corp | 554,337 | $111.0M | 0.02% | −20,048−3.5% | Reduced |
| Pictet Asset Management SA | 604,075 | $121.0M | 0.15% | +162,513+36.8% | Added |
| Nuveen Asset Management, LLC | 609,106 | $122.0M | 0.05% | −9,538−1.5% | Reduced |
| Gilder Gagnon Howe & Co LLC | 621,208 | $124.4M | 2.06% | −28,409−4.4% | Reduced |
| Amundi | 653,780 | $131.3M | 0.07% | −13,753−2.1% | Reduced |
| Loomis Sayles & Co L P | 658,226 | $131.9M | 0.23% | −54,330−7.6% | Reduced |
| UBS Asset Management Americas Inc | 673,878 | $135.0M | 0.07% | +15,958+2.4% | Added |
| Legal & General Group Plc | 731,022 | $146.4M | 0.05% | −1,333−0.2% | Reduced |
| Northern Trust Corp | 761,584 | $152.6M | 0.03% | +12,045+1.6% | Added |
| Massachusetts Financial Services Co | 765,772 | $153.4M | 0.05% | +10,230+1.4% | Added |
| Bank of America Corp | 771,205 | $154.5M | 0.02% | +467,996+154.3% | Added |
| Bellevue Group AG | 883,250 | $176.9M | 2.57% | −37,963−4.1% | Reduced |
| Avoro Capital Advisors LLC | 1,105,000 | $221.4M | 3.28% | 00.0% | Unchanged |
| Morgan Stanley | 1,230,815 | $246.6M | 0.03% | −159,825−11.5% | Reduced |
| Norges Bank | 1,521,412 | $304.8M | 0.07% | +508,566+50.2% | Added |
| RTW Investments, LP | 1,683,362 | $337.2M | 7.02% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 1,738,115 | $347.7M | 0.05% | +48,186+2.9% | Added |
| Capital International Investors | 2,229,589 | $446.6M | 0.11% | +223,968+11.2% | Added |
| Capital Research Global Investors | 2,439,596 | $488.7M | 0.14% | +1,607,479+193.2% | Added |
| State Street Corp | 2,854,881 | $571.9M | 0.03% | +68,339+2.5% | Added |
| T. Rowe Price Investment Management, Inc. | 3,030,821 | $607.1M | 0.44% | −171,972−5.4% | Reduced |
| JPMorgan Chase & Co | 3,094,734 | $619.9M | 0.08% | −32,960−1.1% | Reduced |
| Dodge & Cox | 3,894,535 | $780.2M | 0.53% | −696,247−15.2% | Reduced |
| Price T Rowe Associates Inc | 3,972,876 | $795.8M | 0.12% | −101,268−2.5% | Reduced |
| Wellington Management Group LLP | 6,153,777 | $1.23B | 0.24% | −80,309−1.3% | Reduced |
| BlackRock Inc. | 8,548,962 | $1.71B | 0.05% | +59,582+0.7% | Added |
| Baillie Gifford & Co | 8,639,141 | $1.73B | 1.56% | −768,730−8.2% | Reduced |
| Vanguard Group Inc | 11,608,167 | $2.33B | 0.06% | +101,051+0.9% | Added |
| FMR LLC | 13,170,835 | $2.64B | 0.24% | −341,248−2.5% | Reduced |
| Capital World Investors | 16,476,201 | $3.30B | 0.68% | +85,926+0.5% | Added |
| Lord, Abbett & Co. LLC | 0 | $0 | 0.00% | −523,972−100.0% | Sold out |
| Woodline Partners LP | 0 | $0 | 0.00% | −95,068−100.0% | Sold out |
| Duquesne Family Office LLCSuperinvestorDuquesne Family Office | 0 | $0 | 0.00% | −88,910−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −43,673−100.0% | Sold out |
| Nekton Capital Ltd. | 0 | $0 | 0.00% | −33,890−100.0% | Sold out |
| Bamco Inc | 0 | $0 | 0.00% | −11,650−100.0% | Sold out |
| Moore Capital Management, LP | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Mirabella Financial Services LLP | 0 | $0 | 0.00% | −9,892−100.0% | Sold out |
| Moody Lynn & Lieberson, LLC | 0 | $0 | 0.00% | −6,390−100.0% | Sold out |
| Allstate Corp | 0 | $0 | 0.00% | −5,228−100.0% | Sold out |
| Endurant Capital Management LP | 0 | $0 | 0.00% | −4,596−100.0% | Sold out |
| Westwood Holdings Group Inc. | 0 | $0 | 0.00% | −3,856−100.0% | Sold out |
| Sanders Morris Harris LLC | 0 | $0 | 0.00% | −3,500−100.0% | Sold out |
| Private Advisory Group LLC | 0 | $0 | 0.00% | −3,351−100.0% | Sold out |
| Fullerton Fund Management Co Ltd. | 0 | $0 | 0.00% | −2,251−100.0% | Sold out |
| Motley Fool Asset Management LLC | 0 | $0 | 0.00% | −2,181−100.0% | Sold out |
| Fukoku Mutual Life Insurance Co | 0 | $0 | 0.00% | −1,430−100.0% | Sold out |
| First Foundation Advisors | 0 | $0 | 0.00% | −1,377−100.0% | Sold out |
| Wolverine Trading, LLC | 0 | $0 | 0.00% | −1,323−100.0% | Sold out |
| Benjamin F. Edwards & Company, Inc. | 0 | $0 | 0.00% | −1,321−100.0% | Sold out |
| HBK Sorce Advisory LLC | 0 | $0 | 0.00% | −1,306−100.0% | Sold out |
| Kula Investments, LLC | 0 | $0 | 0.00% | −1,242−100.0% | Sold out |