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 2024
Institutional positions in Alnylam Pharmaceuticals, Inc. as of Dec 31, 2024. 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
- 594
- +35 vs. Q3 2024
- Shares held
- 127.8M
- +4.29M (+3.5%) vs. Q3 2024
- Total value
- $30.1B
- −$3.90B (−11.5%) vs. Q3 2024
- New holders
- 98
- 239 more added
- Sold out
- 63
- 180 more reduced
10 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2024: 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 2024
Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Man Group plc | 16,382 | $3.85M | 0.01% | −93,421−85.1% | Reduced |
| Acadian Asset Management LLC | 16,676 | $3.92M | 0.01% | −17,741−51.5% | Reduced |
| Toronto Dominion Bank | 16,774 | $3.95M | 0.01% | +1,308+8.5% | Added |
| Voloridge Investment Management, LLC | 16,776 | $3.95M | 0.01% | −177,471−91.4% | Reduced |
| Campbell & CO Investment Adviser LLC | 16,858 | $3.97M | 0.31% | +16,858 | New |
| Rhenman & Partners Asset Management AB | 17,000 | $4.00M | 0.41% | −33,350−66.2% | Reduced |
| Capital Group Investment Management Pte. Ltd. | 17,171 | $4.04M | 0.77% | −4,176−19.6% | Reduced |
| Alberta Investment Management Corp | 18,000 | $4.24M | 0.03% | +11,100+160.9% | Added |
| Sterling Capital Management LLC | 18,087 | $4.26M | 0.06% | +15,507+601.0% | Added |
| Cinctive Capital Management LP | 18,240 | $4.29M | 0.23% | +18,240 | New |
| LPL Financial LLC | 18,572 | $4.37M | 0.00% | −234−1.2% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 18,751 | $4.41M | 0.04% | +18,751 | New |
| Prudential Financial Inc | 18,753 | $4.41M | 0.01% | −64,212−77.4% | Reduced |
| J. Safra Sarasin Holding AG | 19,142 | $4.50M | 0.08% | +7,868+69.8% | Added |
| Assenagon Asset Management S.A. | 19,918 | $4.69M | 0.01% | +2,285+13.0% | Added |
| Walleye Capital LLC | 20,116 | $4.73M | 0.05% | +16,467+451.3% | Added |
| Utah Retirement Systems | 21,325 | $5.02M | 0.06% | +400+1.9% | Added |
| FIL Ltd | 22,066 | $5.19M | 0.00% | +7,236+48.8% | Added |
| Banco Bilbao Vizcaya Argentaria, S.A. | 22,154 | $5.21M | 0.05% | +413+1.9% | Added |
| Xponance, Inc. | 22,456 | $5.28M | 0.05% | +1,806+8.7% | Added |
| AIA Group Ltd | 22,848 | $5.38M | 0.13% | −5,369−19.0% | Reduced |
| Parallax Volatility Advisers, L.P. | 23,161 | $5.45M | 0.12% | −3,374−12.7% | Reduced |
| Schroder Investment Management Group | 23,230 | $5.48M | 0.01% | −24,112−50.9% | Reduced |
| IFM Investors Pty Ltd | 23,700 | $5.58M | 0.06% | −2,219−8.6% | Reduced |
| Lazard Asset Management LLC | 24,194 | $5.69M | 0.01% | +4,315+21.7% | Added |
| British Columbia Investment Management Corp | 24,582 | $5.78M | 0.03% | +3,474+16.5% | Added |
| STRS Ohio | 25,000 | $5.88M | 0.02% | −4,468−15.2% | Reduced |
| Burney Co | 25,738 | $6.06M | 0.21% | +4,791+22.9% | Added |
| USS Investment Management Ltd | 26,366 | $6.21M | 0.05% | −6,505−19.8% | Reduced |
| EFG Asset Management (North America) Corp. | 26,646 | $6.28M | 0.86% | +6,031+29.3% | Added |
| DnB Asset Management AS | 26,733 | $6.29M | 0.03% | +1,335+5.3% | Added |
| Erste Asset Management GmbH | 26,510 | $6.31M | 0.08% | +10,000+60.6% | Added |
| Andra AP-fonden | 27,900 | $6.57M | 0.11% | +15,200+119.7% | Added |
| Zurich Insurance Group Ltd | 27,977 | $6.58M | 0.05% | +27,977 | New |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 29,115 | $6.85M | 0.07% | +1,300+4.7% | Added |
| KBC Group NV | 30,026 | $7.07M | 0.02% | +5,460+22.2% | Added |
| Driehaus Capital Management LLC | 33,480 | $7.88M | 0.07% | +1,130+3.5% | Added |
| Brown Advisory Inc | 33,880 | $7.97M | 0.01% | −5,243−13.4% | Reduced |
| Engineers Gate Manager LP | 33,897 | $7.98M | 0.14% | +22,034+185.7% | Added |
| Teachers Retirement System of the State of Kentucky | 34,713 | $8.17M | 0.07% | 00.0% | Unchanged |
| Rosenblum Silverman Sutton S F Inc | 34,775 | $8.18M | 2.06% | −380−1.1% | Reduced |
| Groupama Asset Managment | 28,450 | $8.32M | 0.17% | +7,065+33.0% | Added |
| Resona Asset Management Co.,Ltd. | 36,656 | $8.64M | 0.05% | −921−2.5% | Reduced |
| Voleon Capital Management LP | 37,181 | $8.75M | 0.65% | +37,181 | New |
| Arizona State Retirement System | 37,204 | $8.75M | 0.05% | +964+2.7% | Added |
| Parkman Healthcare Partners LLC | 38,672 | $9.10M | 1.21% | +13,187+51.7% | Added |
| Ieq Capital, LLC | 38,806 | $9.13M | 0.09% | +34,613+825.5% | Added |
| China Universal Asset Management Co., Ltd. | 38,997 | $9.18M | 0.86% | +2,657+7.3% | Added |
| Teacher Retirement System of Texas | 39,075 | $9.20M | 0.03% | +5,425+16.1% | Added |
| Victory Capital Management Inc | 39,797 | $9.36M | 0.01% | −3,112−7.3% | Reduced |
| Aquatic Capital Management LLC | 40,552 | $9.54M | 0.26% | +20,143+98.7% | Added |
| Bridger Management, LLC | 41,182 | $9.69M | 5.21% | +4,160+11.2% | Added |
| Capital Group Private Client Services, Inc. | 41,525 | $9.77M | 0.09% | −924−2.2% | Reduced |
| BNP Paribas Arbitrage, SA | 41,718 | $9.82M | 0.01% | −73,066−63.7% | Reduced |
| Lansforsakringar Fondforvaltning AB (publ) | 42,544 | $10.0M | 0.06% | +42,544 | New |
| KLP Kapitalforvaltning AS | 43,700 | $10.3M | 0.05% | +43,700 | New |
| Trexquant Investment LP | 44,024 | $10.4M | 0.12% | −46,719−51.5% | Reduced |
| Public Employees Retirement System of Ohio | 44,257 | $10.4M | 0.04% | −4,180−8.6% | Reduced |
| Alliancebernstein L.P. | 44,590 | $10.5M | 0.00% | −8,034−15.3% | Reduced |
| Integral Health Asset Management, LLC | 45,000 | $10.6M | 0.94% | +20,000+80.0% | Added |
| Storebrand Asset Management AS | 45,270 | $10.7M | 0.03% | +22,087+95.3% | Added |
| State of New Jersey Common Pension Fund D | 47,503 | $11.2M | 0.05% | +70+0.1% | Added |
| HRT Financial LP | 49,900 | $11.7M | 0.06% | +49,900 | New |
| Rafferty Asset Management, LLC | 52,817 | $12.4M | 0.04% | −11,014−17.3% | Reduced |
| Handelsbanken Fonder AB | 54,346 | $12.8M | 0.05% | −18,835−25.7% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 54,406 | $12.8M | 0.04% | −164−0.3% | Reduced |
| Forsta Ap-Fonden | 54,800 | $12.9M | 0.09% | +3,900+7.7% | Added |
| Panagora Asset Management Inc | 55,464 | $13.1M | 0.06% | −70,427−55.9% | Reduced |
| Swedbank AB | 55,532 | $13.1M | 0.02% | +1,803+3.4% | Added |
| Beck Bode, LLC | 56,017 | $13.2M | 2.41% | +56,017 | New |
| Artia Global Partners LP | 56,400 | $13.3M | 5.35% | +21,400+61.1% | Added |
| Susquehanna Fundamental Investments, LLC | 56,585 | $13.3M | 0.22% | +56,585 | New |
| U.S. Capital Wealth Advisors, LLC | 60,501 | $14.2M | 0.44% | −999−1.6% | Reduced |
| Macquarie Group Ltd | 60,664 | $14.3M | 0.02% | −11,952−16.5% | Reduced |
| HSBC Holdings PLC | 61,582 | $14.5M | 0.01% | +4,712+8.3% | Added |
| Danske Bank A/S | 62,013 | $14.6M | 0.04% | +9,608+18.3% | Added |
| Illinois Municipal Retirement Fund | 62,665 | $14.7M | 0.21% | +25,298+67.7% | Added |
| Citadel Advisors LLC | 65,393 | $15.4M | 0.01% | +41,461+173.2% | Added |
| Envestnet Asset Management Inc | 66,014 | $15.5M | 0.00% | +34,647+110.5% | Added |
| Asset Management One Co.,Ltd. | 65,363 | $15.6M | 0.05% | −2,590−3.8% | Reduced |
| Van Eck Associates Corp | 67,818 | $16.0M | 0.02% | +10,419+18.2% | Added |
| New York State Common Retirement Fund | 72,228 | $17.0M | 0.02% | −4,000−5.2% | Reduced |
| Russell Investments Group, Ltd. | 73,160 | $17.2M | 0.02% | +30,836+72.9% | Added |
| Eagle Health Investments LP | 76,256 | $17.9M | 4.40% | 00.0% | Unchanged |
| Ensign Peak Advisors, Inc | 76,464 | $18.0M | 0.03% | −4,104−5.1% | Reduced |
| Soleus Capital Management, L.P. | 76,800 | $18.1M | 1.37% | +17,400+29.3% | Added |
| Great West Life Assurance Co | 76,919 | $18.1M | 0.03% | +8,206+11.9% | Added |
| Aviva PLC | 77,244 | $18.2M | 0.05% | +52,738+215.2% | Added |
| State of Wisconsin Investment Board | 78,375 | $18.4M | 0.05% | −719−0.9% | Reduced |
| Two Sigma Advisers, LP | 78,800 | $18.5M | 0.04% | −24,300−23.6% | Reduced |
| Capital International Ltd | 80,282 | $18.9M | 0.77% | −20,141−20.1% | Reduced |
| Nomura Asset Management Co Ltd | 82,785 | $19.5M | 0.06% | −2,660−3.1% | Reduced |
| Citigroup Inc | 86,897 | $20.4M | 0.02% | +12,626+17.0% | Added |
| Treasurer of the State of North Carolina | 86,915 | $20.5M | 0.08% | +2,310+2.7% | Added |
| Adage Capital Partners GP, L.L.C. | 93,056 | $21.9M | 0.04% | −22,944−19.8% | Reduced |
| Korea Investment CORP | 93,603 | $22.0M | 0.05% | −14,290−13.2% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 94,698 | $22.2M | 0.02% | +9,393+11.0% | Added |
| Los Angeles Capital Management LLC | 94,822 | $22.3M | 0.09% | −42,195−30.8% | Reduced |
| Voya Investment Management LLC | 95,086 | $22.4M | 0.02% | −13,623−12.5% | Reduced |
| AXA S.A. | 95,306 | $22.4M | 0.07% | −15,910−14.3% | Reduced |