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 2024
Institutional positions in Alnylam Pharmaceuticals, Inc. as of Mar 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
- 499
- +6 vs. Q4 2023
- Shares held
- 114.8M
- −2.25M (−1.9%) vs. Q4 2023
- Total value
- $17.2B
- −$5.24B (−23.4%) vs. Q4 2023
- New holders
- 71
- 204 more added
- Sold out
- 65
- 151 more reduced
8 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2024
Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Capital Group Investment Management Pte. Ltd. | 16,173 | $2.42M | 0.43% | −16,251−50.1% | Reduced |
| LPL Financial LLC | 16,974 | $2.54M | 0.00% | +253+1.5% | Added |
| Jump Financial, LLC | 17,554 | $2.62M | 0.07% | +10,262+140.7% | Added |
| Sectoral Asset Management Inc | 18,460 | $2.76M | 1.08% | −4,180−18.5% | Reduced |
| Storebrand Asset Management AS | 18,506 | $2.77M | 0.01% | −17,339−48.4% | Reduced |
| Mackenzie Financial Corp | 18,515 | $2.77M | 0.00% | −1,821−9.0% | Reduced |
| ExodusPoint Capital Management, LP | 18,658 | $2.79M | 0.03% | +18,658 | New |
| Gateway Investment Advisers LLC | 19,037 | $2.85M | 0.03% | +60.0% | Added |
| Principal Financial Group Inc | 19,356 | $2.89M | 0.00% | −273−1.4% | Reduced |
| Xponance, Inc. | 19,698 | $2.94M | 0.03% | +5,609+39.8% | Added |
| Tredje AP-fonden | 19,791 | $2.96M | 0.03% | 00.0% | Unchanged |
| EFG Asset Management (North America) Corp. | 19,946 | $2.98M | 0.51% | −3,740−15.8% | Reduced |
| Swedbank AB | 20,639 | $3.08M | 0.00% | −200,000−90.6% | Reduced |
| Privium Fund Management B.V. | 20,893 | $3.12M | 0.83% | −800−3.7% | Reduced |
| Guggenheim Capital LLC | 21,162 | $3.16M | 0.02% | +3,411+19.2% | Added |
| Federation des caisses Desjardins du Quebec | 16,685 | $3.17M | 0.02% | +646+4.0% | Added |
| Utah Retirement Systems | 21,525 | $3.22M | 0.04% | +100+0.5% | Added |
| Groupama Asset Managment | 2,256 | $3.25M | 0.06% | −15,061−87.0% | Reduced |
| Aquatic Capital Management LLC | 21,800 | $3.26M | 0.11% | +900+4.3% | Added |
| Polar Asset Management Partners Inc. | 22,600 | $3.38M | 0.09% | +22,600 | New |
| Edgestream Partners, L.P. | 23,355 | $3.49M | 0.17% | +15,394+193.4% | Added |
| HAP Trading, LLC | 23,798 | $3.56M | 1.10% | +23,798 | New |
| Weiss Asset Management LP | 24,676 | $3.69M | 0.17% | +23,484+1,970.1% | Added |
| Engineers Gate Manager LP | 24,723 | $3.69M | 0.10% | +7,292+41.8% | Added |
| Caisse de Depot Et Placement du Quebec | 24,795 | $3.71M | 0.01% | +5,200+26.5% | Added |
| DnB Asset Management AS | 24,993 | $3.74M | 0.02% | −21,231−45.9% | Reduced |
| STRS Ohio | 25,000 | $3.74M | 0.01% | 00.0% | Unchanged |
| Walleye Trading LLC | 25,172 | $3.76M | 0.06% | +2,661+11.8% | Added |
| IFM Investors Pty Ltd | 25,651 | $3.83M | 0.04% | +780+3.1% | Added |
| Seven Eight Capital, LP | 25,809 | $3.86M | 0.40% | +20,572+392.8% | Added |
| Illinois Municipal Retirement Fund | 26,375 | $3.94M | 0.06% | +26,375 | New |
| Burney Co | 27,059 | $4.04M | 0.15% | +21,325+371.9% | Added |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 27,415 | $4.10M | 0.05% | −500−1.8% | Reduced |
| Envestnet Asset Management Inc | 27,435 | $4.10M | 0.00% | +156+0.6% | Added |
| Sector Gamma AS | 27,583 | $4.12M | 1.16% | −4,509−14.1% | Reduced |
| Teacher Retirement System of Texas | 28,533 | $4.26M | 0.03% | −681−2.3% | Reduced |
| Robeco Institutional Asset Management B.V. | 28,840 | $4.31M | 0.01% | +4,705+19.5% | Added |
| Erste Asset Management GmbH | 28,510 | $4.40M | 0.06% | 00.0% | Unchanged |
| SEI Investments Co | 29,603 | $4.43M | 0.01% | +3,354+12.8% | Added |
| Capital Fund Management S.A. | 30,367 | $4.54M | 0.06% | +30,367 | New |
| Suvretta Capital Management, LLC | 32,660 | $4.88M | 0.21% | +22,800+231.2% | Added |
| Banque Pictet & Cie SA | 33,005 | $4.93M | 0.05% | +10,176+44.6% | Added |
| Teachers Retirement System of the State of Kentucky | 33,213 | $4.96M | 0.04% | +2,500+8.1% | Added |
| Arizona State Retirement System | 34,517 | $5.16M | 0.04% | +161+0.5% | Added |
| USS Investment Management Ltd | 35,414 | $5.29M | 0.04% | +3,712+11.7% | Added |
| Rosenblum Silverman Sutton S F Inc | 35,470 | $5.30M | 1.50% | −467−1.3% | Reduced |
| China Universal Asset Management Co., Ltd. | 35,822 | $5.35M | 0.68% | +9,662+36.9% | Added |
| APG Asset Management US Inc. | 35,910 | $5.51M | 0.03% | +11,413+46.6% | Added |
| Parnassus Investments | 38,748 | $5.79M | 0.01% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 38,755 | $5.79M | 0.03% | +38,095+5,772.0% | Added |
| Korea Investment CORP | 39,163 | $5.85M | 0.01% | +6,067+18.3% | Added |
| Victory Capital Management Inc | 39,404 | $5.89M | 0.01% | −6,334−13.8% | Reduced |
| Mediolanum International Funds Ltd | 38,556 | $5.95M | 0.10% | +38,556 | New |
| Citadel Advisors LLC | 39,984 | $5.98M | 0.01% | −26,665−40.0% | Reduced |
| HRT Financial LP | 41,927 | $6.26M | 0.04% | +41,927 | New |
| Rhenman & Partners Asset Management AB | 42,300 | $6.32M | 0.60% | +4,800+12.8% | Added |
| Brown Advisory Inc | 45,486 | $6.80M | 0.01% | +6,757+17.4% | Added |
| Walleye Capital LLC | 46,858 | $7.00M | 0.08% | +22,044+88.8% | Added |
| Resona Asset Management Co.,Ltd. | 46,941 | $7.02M | 0.04% | +46,941 | New |
| Great West Life Assurance Co | 47,545 | $7.11M | 0.01% | +1,804+3.9% | Added |
| Eagle Health Investments LP | 48,356 | $7.23M | 1.38% | −88,400−64.6% | Reduced |
| Integral Health Asset Management, LLC | 50,000 | $7.47M | 0.73% | +5,000+11.1% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 50,014 | $7.47M | 0.03% | +4,934+10.9% | Added |
| Ikarian Capital, LLC | 51,541 | $7.70M | 2.10% | +51,541 | New |
| Public Employees Retirement System of Ohio | 51,548 | $7.70M | 0.03% | −3,869−7.0% | Reduced |
| Bridger Management, LLC | 52,922 | $7.91M | 3.57% | +34,000+179.7% | Added |
| Alliancebernstein L.P. | 54,176 | $8.10M | 0.00% | −466,663−89.6% | Reduced |
| Capital Group Private Client Services, Inc. | 54,421 | $8.13M | 0.08% | +4,660+9.4% | Added |
| Macquarie Group Ltd | 55,907 | $8.36M | 0.01% | +8,890+18.9% | Added |
| Van Eck Associates Corp | 57,923 | $8.66M | 0.01% | −3,310−5.4% | Reduced |
| Russell Investments Group, Ltd. | 58,739 | $8.91M | 0.01% | +27,650+88.9% | Added |
| Ghost Tree Capital, LLC | 60,000 | $8.97M | 2.88% | +32,500+118.2% | Added |
| Worldquant Millennium Advisors LLC | 60,073 | $8.98M | 0.11% | −894−1.5% | Reduced |
| Assenagon Asset Management S.A. | 60,342 | $9.02M | 0.02% | +46,176+326.0% | Added |
| Rafferty Asset Management, LLC | 61,206 | $9.15M | 0.03% | +8,398+15.9% | Added |
| U.S. Capital Wealth Advisors, LLC | 61,500 | $9.19M | 0.35% | 00.0% | Unchanged |
| APG Asset Management N.V. | 67,405 | $9.33M | 0.02% | −25,868−27.7% | Reduced |
| Edmond de Rothschild Holding S.A. | 65,050 | $9.72M | 0.16% | +49,250+311.7% | Added |
| Capital International Ltd | 65,224 | $9.75M | 0.47% | −23,161−26.2% | Reduced |
| Asset Management One Co.,Ltd. | 67,919 | $10.2M | 0.04% | −1,415−2.0% | Reduced |
| Forsta Ap-Fonden | 68,300 | $10.2M | 0.09% | +45,500+199.6% | Added |
| State of Wisconsin Investment Board | 68,714 | $10.3M | 0.03% | −131,746−65.7% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 68,790 | $10.3M | 0.01% | +12,646+22.5% | Added |
| Tobam | 69,062 | $10.3M | 0.92% | −21,979−24.1% | Reduced |
| Danske Bank A/S | 69,491 | $10.4M | 0.03% | +69,491 | New |
| Voya Investment Management LLC | 70,497 | $10.5M | 0.01% | −13,626−16.2% | Reduced |
| LMR Partners LLP | 71,371 | $10.7M | 0.27% | +43,171+153.1% | Added |
| Capital International Sarl | 73,109 | $10.9M | 0.36% | −14,248−16.3% | Reduced |
| State of New Jersey Common Pension Fund D | 73,259 | $10.9M | 0.03% | 00.0% | Unchanged |
| HSBC Holdings PLC | 74,131 | $11.1M | 0.01% | +29,932+67.7% | Added |
| Mirae Asset Global Investments Co., Ltd. | 62,415 | $11.2M | 0.02% | +24,228+63.4% | Added |
| Handelsbanken Fonder AB | 75,106 | $11.2M | 0.05% | +208+0.3% | Added |
| Nomura Asset Management Co Ltd | 79,743 | $11.9M | 0.04% | +10,732+15.6% | Added |
| Susquehanna International Group, LLP | 81,662 | $12.2M | 0.02% | +55,655+214.0% | Added |
| Ensign Peak Advisors, Inc | 81,770 | $12.2M | 0.02% | −5,827−6.7% | Reduced |
| Eventide Asset Management, LLC | 87,000 | $13.0M | 0.20% | 00.0% | Unchanged |
| Treasurer of the State of North Carolina | 87,387 | $13.1M | 0.06% | +690+0.8% | Added |
| Susquehanna Fundamental Investments, LLC | 88,067 | $13.2M | 0.61% | +88,067 | New |
| Schroder Investment Management Group | 88,902 | $13.3M | 0.02% | +44,427+99.9% | Added |
| Cubist Systematic Strategies, LLC | 90,234 | $13.5M | 0.15% | +72,220+400.9% | Added |