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 2023
Institutional positions in Alnylam Pharmaceuticals, Inc. as of Dec 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
- 501
- +53 vs. Q3 2023
- Shares held
- 117.1M
- −655.2K (−0.6%) vs. Q3 2023
- Total value
- $22.4B
- +$1.57B (+7.5%) vs. Q3 2023
- New holders
- 97
- 166 more added
- Sold out
- 44
- 161 more reduced
6 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2023: 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 2023
Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Asset Management One Co.,Ltd. | 69,334 | $13.6M | 0.05% | +20,268+41.3% | Added |
| Nomura Asset Management Co Ltd | 69,011 | $13.2M | 0.05% | +994+1.5% | Added |
| Citadel Advisors LLC | 66,649 | $12.8M | 0.01% | +66,649 | New |
| Tudor Investment Corp Et Al | 64,096 | $12.3M | 0.17% | +4,092+6.8% | Added |
| U.S. Capital Wealth Advisors, LLC | 61,500 | $11.8M | 0.47% | 00.0% | Unchanged |
| Van Eck Associates Corp | 61,233 | $11.7M | 0.02% | −9,853−13.9% | Reduced |
| Worldquant Millennium Advisors LLC | 60,967 | $11.7M | 0.16% | +60,967 | New |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 56,144 | $10.7M | 0.02% | +3,665+7.0% | Added |
| Public Employees Retirement System of Ohio | 55,417 | $10.6M | 0.04% | +747+1.4% | Added |
| Rafferty Asset Management, LLC | 52,808 | $10.1M | 0.04% | +8,640+19.6% | Added |
| Trexquant Investment LP | 51,397 | $9.84M | 0.22% | +40,376+366.4% | Added |
| Capital Group Private Client Services, Inc. | 49,761 | $9.52M | 0.10% | +43,500+694.8% | Added |
| Toronto Dominion Bank | 49,147 | $9.41M | 0.01% | −6,115−11.1% | Reduced |
| Macquarie Group Ltd | 47,017 | $9.00M | 0.01% | +1,111+2.4% | Added |
| DnB Asset Management AS | 46,224 | $8.85M | 0.05% | −4,988−9.7% | Reduced |
| Victory Capital Management Inc | 45,738 | $8.75M | 0.01% | −13,149−22.3% | Reduced |
| Great West Life Assurance Co | 45,741 | $8.70M | 0.02% | +1,568+3.5% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 45,080 | $8.63M | 0.03% | +22,473+99.4% | Added |
| Integral Health Asset Management, LLC | 45,000 | $8.61M | 1.24% | +45,000 | New |
| Schroder Investment Management Group | 44,475 | $8.51M | 0.01% | +36,820+481.0% | Added |
| HSBC Holdings PLC | 44,199 | $8.47M | 0.01% | +9,014+25.6% | Added |
| CWM, LLC | 43,400 | $8.31M | 0.04% | −538−1.2% | Reduced |
| Man Group plc | 42,890 | $8.21M | 0.02% | – | – |
| Bank of Montreal | 39,965 | $7.87M | 0.00% | −8,238−17.1% | Reduced |
| Driehaus Capital Management LLC | 38,988 | $7.46M | 0.09% | −41−0.1% | Reduced |
| Parnassus Investments | 38,748 | $7.42M | 0.02% | 00.0% | Unchanged |
| Brown Advisory Inc | 38,729 | $7.41M | 0.01% | +3,517+10.0% | Added |
| Mirae Asset Global Investments Co., Ltd. | 38,187 | $7.34M | 0.01% | −22,532−37.1% | Reduced |
| Rhenman & Partners Asset Management AB | 37,500 | $7.18M | 0.72% | −7,500−16.7% | Reduced |
| Millennium Management LLC | 36,536 | $6.99M | 0.01% | +20,429+126.8% | Added |
| Sphera Funds Management Ltd. | 36,230 | $6.93M | 1.29% | +129+0.4% | Added |
| Rosenblum Silverman Sutton S F Inc | 35,937 | $6.88M | 2.19% | −1,116−3.0% | Reduced |
| Storebrand Asset Management AS | 35,845 | $6.86M | 0.02% | +1,944+5.7% | Added |
| Andra AP-fonden | 35,500 | $6.80M | 0.36% | +1,000+2.9% | Added |
| Vestal Point Capital, LP | 35,000 | $6.70M | 0.71% | +35,000 | New |
| Arizona State Retirement System | 34,356 | $6.58M | 0.05% | +383+1.1% | Added |
| Korea Investment CORP | 33,096 | $6.33M | 0.02% | +35+0.1% | Added |
| Segantii Capital Management Ltd | 32,950 | $6.31M | 0.37% | +13,700+71.2% | Added |
| Capital Group Investment Management Pte. Ltd. | 32,424 | $6.21M | 0.65% | −21,092−39.4% | Reduced |
| Sector Gamma AS | 32,092 | $6.14M | 1.49% | −20,876−39.4% | Reduced |
| USS Investment Management Ltd | 31,702 | $6.07M | 0.05% | −2,529−7.4% | Reduced |
| Russell Investments Group, Ltd. | 31,089 | $6.04M | 0.01% | +6,963+28.9% | Added |
| Teachers Retirement System of the State of Kentucky | 30,713 | $5.88M | 0.05% | −21,042−40.7% | Reduced |
| Teacher Retirement System of Texas | 29,214 | $5.59M | 0.04% | −3,744−11.4% | Reduced |
| Erste Asset Management GmbH | 28,510 | $5.58M | 0.08% | 00.0% | Unchanged |
| LMR Partners LLP | 28,200 | $5.40M | 0.14% | −39,524−58.4% | Reduced |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 27,915 | $5.34M | 0.07% | −500−1.8% | Reduced |
| Ghost Tree Capital, LLC | 27,500 | $5.26M | 3.03% | +27,500 | New |
| Envestnet Asset Management Inc | 27,279 | $5.22M | 0.00% | +2,709+11.0% | Added |
| SEI Investments Co | 26,249 | $5.02M | 0.01% | +947+3.7% | Added |
| China Universal Asset Management Co., Ltd. | 26,160 | $5.01M | 0.97% | +22,580+630.7% | Added |
| Susquehanna International Group, LLP | 26,007 | $4.98M | 0.01% | −162,346−86.2% | Reduced |
| STRS Ohio | 25,000 | $4.79M | 0.02% | 00.0% | Unchanged |
| IFM Investors Pty Ltd | 24,871 | $4.76M | 0.06% | 00.0% | Unchanged |
| Walleye Capital LLC | 24,814 | $4.75M | 0.07% | +24,814 | New |
| Aigen Investment Management, LP | 24,544 | $4.70M | 0.84% | +24,544 | New |
| APG Asset Management US Inc. | 24,497 | $4.69M | 0.03% | +24,497 | New |
| Robeco Institutional Asset Management B.V. | 24,135 | $4.62M | 0.01% | +16,099+200.3% | Added |
| EFG Asset Management (North America) Corp. | 23,686 | $4.54M | 0.86% | −4,165−15.0% | Reduced |
| Campbell & CO Investment Adviser LLC | 23,371 | $4.47M | 0.40% | +23,371 | New |
| Banque Pictet & Cie SA | 22,829 | $4.37M | 0.05% | −2,595−10.2% | Reduced |
| Forsta Ap-Fonden | 22,800 | $4.36M | 0.04% | −2,600−10.2% | Reduced |
| Sectoral Asset Management Inc | 22,640 | $4.33M | 1.87% | −6,320−21.8% | Reduced |
| Walleye Trading LLC | 22,511 | $4.31M | 0.06% | +22,511 | New |
| Privium Fund Management B.V. | 21,693 | $4.23M | 1.18% | +1,670+8.3% | Added |
| Caption Management, LLC | 21,542 | $4.12M | 0.45% | −15,958−42.6% | Reduced |
| Utah Retirement Systems | 21,425 | $4.10M | 0.05% | +100+0.5% | Added |
| Aquatic Capital Management LLC | 20,900 | $4.00M | 0.10% | +3,000+16.8% | Added |
| Mackenzie Financial Corp | 20,336 | $3.89M | 0.01% | −1,410−6.5% | Reduced |
| Tredje AP-fonden | 19,791 | $3.79M | 0.05% | −765−3.7% | Reduced |
| Principal Financial Group Inc | 19,629 | $3.76M | 0.00% | −2,876−12.8% | Reduced |
| Caisse de Depot Et Placement du Quebec | 19,595 | $3.75M | 0.01% | +6,884+54.2% | Added |
| Lazard Asset Management LLC | 19,504 | $3.73M | 0.00% | +3,673+23.2% | Added |
| Gateway Investment Advisers LLC | 19,031 | $3.64M | 0.04% | +5,080+36.4% | Added |
| Bridger Management, LLC | 18,922 | $3.62M | 1.39% | +18,922 | New |
| Qube Research & Technologies Ltd | 18,452 | $3.53M | 0.01% | +17,452+1,745.2% | Added |
| Cubist Systematic Strategies, LLC | 18,014 | $3.45M | 0.04% | +2,333+14.9% | Added |
| Guggenheim Capital LLC | 17,751 | $3.40M | 0.03% | +507+2.9% | Added |
| Engineers Gate Manager LP | 17,431 | $3.34M | 0.10% | +17,431 | New |
| Groupama Asset Managment | 17,317 | $3.32M | 0.09% | +17,317 | New |
| Duality Advisers, LP | 17,112 | $3.28M | 0.35% | +7,682+81.5% | Added |
| Putnam Investments LLC | 17,055 | $3.26M | 0.00% | +17,055 | New |
| Los Angeles Capital Management LLC | 17,028 | $3.26M | 0.01% | +17,028 | New |
| LPL Financial LLC | 16,721 | $3.20M | 0.00% | +951+6.0% | Added |
| EFG Asset Management (Americas) Corp. | 16,251 | $3.11M | 0.67% | +794+5.1% | Added |
| Federation des caisses Desjardins du Quebec | 16,039 | $3.07M | 0.03% | 00.0% | Unchanged |
| Edmond de Rothschild Holding S.A. | 15,800 | $3.02M | 0.05% | +15,800 | New |
| Nissay Asset Management Corp | 15,258 | $2.92M | 0.02% | +485+3.3% | Added |
| AIA Group Ltd | 14,644 | $2.80M | 0.11% | 00.0% | Unchanged |
| Public Employees Retirement Association of Colorado | 14,397 | $2.76M | 0.01% | −709−4.7% | Reduced |
| British Columbia Investment Management Corp | 14,384 | $2.75M | 0.02% | +3,063+27.1% | Added |
| Raymond James & Associates | 14,286 | $2.73M | 0.00% | +1,875+15.1% | Added |
| Assenagon Asset Management S.A. | 14,166 | $2.71M | 0.01% | +7,436+110.5% | Added |
| Xponance, Inc. | 14,089 | $2.70M | 0.03% | −895−6.0% | Reduced |
| AQR Capital Management LLC | 14,020 | $2.68M | 0.01% | +4,560+48.2% | Added |
| KBC Group NV | 13,909 | $2.66M | 0.01% | −1,601−10.3% | Reduced |
| CWM Advisors, LLC | 13,797 | $2.64M | 0.29% | +339+2.5% | Added |
| Allianz Asset Management GmbH | 13,789 | $2.64M | 0.00% | −662−4.6% | Reduced |
| Silvant Capital Management LLC | 13,661 | $2.61M | 0.14% | 00.0% | Unchanged |
| Comerica Bank | 13,363 | $2.56M | 0.01% | −63−0.5% | Reduced |