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 |
|---|---|---|---|---|---|
| Empowered Funds, LLC | 13,325 | $2.55M | 0.06% | +11,873+817.7% | Added |
| Comerica Bank | 13,363 | $2.56M | 0.01% | −63−0.5% | Reduced |
| Silvant Capital Management LLC | 13,661 | $2.61M | 0.14% | 00.0% | Unchanged |
| Allianz Asset Management GmbH | 13,789 | $2.64M | 0.00% | −662−4.6% | Reduced |
| CWM Advisors, LLC | 13,797 | $2.64M | 0.29% | +339+2.5% | Added |
| KBC Group NV | 13,909 | $2.66M | 0.01% | −1,601−10.3% | Reduced |
| AQR Capital Management LLC | 14,020 | $2.68M | 0.01% | +4,560+48.2% | Added |
| Xponance, Inc. | 14,089 | $2.70M | 0.03% | −895−6.0% | Reduced |
| Assenagon Asset Management S.A. | 14,166 | $2.71M | 0.01% | +7,436+110.5% | Added |
| Raymond James & Associates | 14,286 | $2.73M | 0.00% | +1,875+15.1% | Added |
| British Columbia Investment Management Corp | 14,384 | $2.75M | 0.02% | +3,063+27.1% | Added |
| Public Employees Retirement Association of Colorado | 14,397 | $2.76M | 0.01% | −709−4.7% | Reduced |
| AIA Group Ltd | 14,644 | $2.80M | 0.11% | 00.0% | Unchanged |
| Nissay Asset Management Corp | 15,258 | $2.92M | 0.02% | +485+3.3% | Added |
| Edmond de Rothschild Holding S.A. | 15,800 | $3.02M | 0.05% | +15,800 | New |
| Federation des caisses Desjardins du Quebec | 16,039 | $3.07M | 0.03% | 00.0% | Unchanged |
| EFG Asset Management (Americas) Corp. | 16,251 | $3.11M | 0.67% | +794+5.1% | Added |
| LPL Financial LLC | 16,721 | $3.20M | 0.00% | +951+6.0% | Added |
| Los Angeles Capital Management LLC | 17,028 | $3.26M | 0.01% | +17,028 | New |
| Putnam Investments LLC | 17,055 | $3.26M | 0.00% | +17,055 | New |
| Duality Advisers, LP | 17,112 | $3.28M | 0.35% | +7,682+81.5% | Added |
| Groupama Asset Managment | 17,317 | $3.32M | 0.09% | +17,317 | New |
| Engineers Gate Manager LP | 17,431 | $3.34M | 0.10% | +17,431 | New |
| Guggenheim Capital LLC | 17,751 | $3.40M | 0.03% | +507+2.9% | Added |
| Cubist Systematic Strategies, LLC | 18,014 | $3.45M | 0.04% | +2,333+14.9% | Added |
| Qube Research & Technologies Ltd | 18,452 | $3.53M | 0.01% | +17,452+1,745.2% | Added |
| Bridger Management, LLC | 18,922 | $3.62M | 1.39% | +18,922 | New |
| Gateway Investment Advisers LLC | 19,031 | $3.64M | 0.04% | +5,080+36.4% | Added |
| Lazard Asset Management LLC | 19,504 | $3.73M | 0.00% | +3,673+23.2% | Added |
| Caisse de Depot Et Placement du Quebec | 19,595 | $3.75M | 0.01% | +6,884+54.2% | Added |
| Principal Financial Group Inc | 19,629 | $3.76M | 0.00% | −2,876−12.8% | Reduced |
| Tredje AP-fonden | 19,791 | $3.79M | 0.05% | −765−3.7% | Reduced |
| Mackenzie Financial Corp | 20,336 | $3.89M | 0.01% | −1,410−6.5% | Reduced |
| Aquatic Capital Management LLC | 20,900 | $4.00M | 0.10% | +3,000+16.8% | Added |
| Utah Retirement Systems | 21,425 | $4.10M | 0.05% | +100+0.5% | Added |
| Caption Management, LLC | 21,542 | $4.12M | 0.45% | −15,958−42.6% | Reduced |
| Privium Fund Management B.V. | 21,693 | $4.23M | 1.18% | +1,670+8.3% | Added |
| Walleye Trading LLC | 22,511 | $4.31M | 0.06% | +22,511 | New |
| Sectoral Asset Management Inc | 22,640 | $4.33M | 1.87% | −6,320−21.8% | Reduced |
| Forsta Ap-Fonden | 22,800 | $4.36M | 0.04% | −2,600−10.2% | Reduced |
| Banque Pictet & Cie SA | 22,829 | $4.37M | 0.05% | −2,595−10.2% | Reduced |
| Campbell & CO Investment Adviser LLC | 23,371 | $4.47M | 0.40% | +23,371 | New |
| EFG Asset Management (North America) Corp. | 23,686 | $4.54M | 0.86% | −4,165−15.0% | Reduced |
| Robeco Institutional Asset Management B.V. | 24,135 | $4.62M | 0.01% | +16,099+200.3% | Added |
| APG Asset Management US Inc. | 24,497 | $4.69M | 0.03% | +24,497 | New |
| Aigen Investment Management, LP | 24,544 | $4.70M | 0.84% | +24,544 | New |
| Walleye Capital LLC | 24,814 | $4.75M | 0.07% | +24,814 | New |
| IFM Investors Pty Ltd | 24,871 | $4.76M | 0.06% | 00.0% | Unchanged |
| STRS Ohio | 25,000 | $4.79M | 0.02% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 26,007 | $4.98M | 0.01% | −162,346−86.2% | Reduced |
| China Universal Asset Management Co., Ltd. | 26,160 | $5.01M | 0.97% | +22,580+630.7% | Added |
| SEI Investments Co | 26,249 | $5.02M | 0.01% | +947+3.7% | Added |
| Envestnet Asset Management Inc | 27,279 | $5.22M | 0.00% | +2,709+11.0% | Added |
| Ghost Tree Capital, LLC | 27,500 | $5.26M | 3.03% | +27,500 | New |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 27,915 | $5.34M | 0.07% | −500−1.8% | Reduced |
| LMR Partners LLP | 28,200 | $5.40M | 0.14% | −39,524−58.4% | Reduced |
| Erste Asset Management GmbH | 28,510 | $5.58M | 0.08% | 00.0% | Unchanged |
| Teacher Retirement System of Texas | 29,214 | $5.59M | 0.04% | −3,744−11.4% | Reduced |
| Teachers Retirement System of the State of Kentucky | 30,713 | $5.88M | 0.05% | −21,042−40.7% | Reduced |
| Russell Investments Group, Ltd. | 31,089 | $6.04M | 0.01% | +6,963+28.9% | Added |
| USS Investment Management Ltd | 31,702 | $6.07M | 0.05% | −2,529−7.4% | Reduced |
| Sector Gamma AS | 32,092 | $6.14M | 1.49% | −20,876−39.4% | Reduced |
| Capital Group Investment Management Pte. Ltd. | 32,424 | $6.21M | 0.65% | −21,092−39.4% | Reduced |
| Segantii Capital Management Ltd | 32,950 | $6.31M | 0.37% | +13,700+71.2% | Added |
| Korea Investment CORP | 33,096 | $6.33M | 0.02% | +35+0.1% | Added |
| Arizona State Retirement System | 34,356 | $6.58M | 0.05% | +383+1.1% | Added |
| Vestal Point Capital, LP | 35,000 | $6.70M | 0.71% | +35,000 | New |
| Andra AP-fonden | 35,500 | $6.80M | 0.36% | +1,000+2.9% | Added |
| Storebrand Asset Management AS | 35,845 | $6.86M | 0.02% | +1,944+5.7% | Added |
| Rosenblum Silverman Sutton S F Inc | 35,937 | $6.88M | 2.19% | −1,116−3.0% | Reduced |
| Sphera Funds Management Ltd. | 36,230 | $6.93M | 1.29% | +129+0.4% | Added |
| Millennium Management LLC | 36,536 | $6.99M | 0.01% | +20,429+126.8% | Added |
| Rhenman & Partners Asset Management AB | 37,500 | $7.18M | 0.72% | −7,500−16.7% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 38,187 | $7.34M | 0.01% | −22,532−37.1% | Reduced |
| Brown Advisory Inc | 38,729 | $7.41M | 0.01% | +3,517+10.0% | Added |
| Parnassus Investments | 38,748 | $7.42M | 0.02% | 00.0% | Unchanged |
| Driehaus Capital Management LLC | 38,988 | $7.46M | 0.09% | −41−0.1% | Reduced |
| Bank of Montreal | 39,965 | $7.87M | 0.00% | −8,238−17.1% | Reduced |
| Man Group plc | 42,890 | $8.21M | 0.02% | – | – |
| CWM, LLC | 43,400 | $8.31M | 0.04% | −538−1.2% | Reduced |
| HSBC Holdings PLC | 44,199 | $8.47M | 0.01% | +9,014+25.6% | Added |
| Schroder Investment Management Group | 44,475 | $8.51M | 0.01% | +36,820+481.0% | Added |
| Integral Health Asset Management, LLC | 45,000 | $8.61M | 1.24% | +45,000 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 45,080 | $8.63M | 0.03% | +22,473+99.4% | Added |
| Great West Life Assurance Co | 45,741 | $8.70M | 0.02% | +1,568+3.5% | Added |
| Victory Capital Management Inc | 45,738 | $8.75M | 0.01% | −13,149−22.3% | Reduced |
| DnB Asset Management AS | 46,224 | $8.85M | 0.05% | −4,988−9.7% | Reduced |
| Macquarie Group Ltd | 47,017 | $9.00M | 0.01% | +1,111+2.4% | Added |
| Toronto Dominion Bank | 49,147 | $9.41M | 0.01% | −6,115−11.1% | Reduced |
| Capital Group Private Client Services, Inc. | 49,761 | $9.52M | 0.10% | +43,500+694.8% | Added |
| Trexquant Investment LP | 51,397 | $9.84M | 0.22% | +40,376+366.4% | Added |
| Rafferty Asset Management, LLC | 52,808 | $10.1M | 0.04% | +8,640+19.6% | Added |
| Public Employees Retirement System of Ohio | 55,417 | $10.6M | 0.04% | +747+1.4% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 56,144 | $10.7M | 0.02% | +3,665+7.0% | Added |
| Worldquant Millennium Advisors LLC | 60,967 | $11.7M | 0.16% | +60,967 | New |
| Van Eck Associates Corp | 61,233 | $11.7M | 0.02% | −9,853−13.9% | Reduced |
| U.S. Capital Wealth Advisors, LLC | 61,500 | $11.8M | 0.47% | 00.0% | Unchanged |
| Tudor Investment Corp Et Al | 64,096 | $12.3M | 0.17% | +4,092+6.8% | Added |
| Citadel Advisors LLC | 66,649 | $12.8M | 0.01% | +66,649 | New |
| Nomura Asset Management Co Ltd | 69,011 | $13.2M | 0.05% | +994+1.5% | Added |