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 |
|---|---|---|---|---|---|
| Schroder Investment Management Group | 88,902 | $13.3M | 0.02% | +44,427+99.9% | Added |
| Susquehanna Fundamental Investments, LLC | 88,067 | $13.2M | 0.61% | +88,067 | New |
| Treasurer of the State of North Carolina | 87,387 | $13.1M | 0.06% | +690+0.8% | Added |
| Eventide Asset Management, LLC | 87,000 | $13.0M | 0.20% | 00.0% | Unchanged |
| Ensign Peak Advisors, Inc | 81,770 | $12.2M | 0.02% | −5,827−6.7% | Reduced |
| Susquehanna International Group, LLP | 81,662 | $12.2M | 0.02% | +55,655+214.0% | Added |
| Nomura Asset Management Co Ltd | 79,743 | $11.9M | 0.04% | +10,732+15.6% | Added |
| Handelsbanken Fonder AB | 75,106 | $11.2M | 0.05% | +208+0.3% | Added |
| Mirae Asset Global Investments Co., Ltd. | 62,415 | $11.2M | 0.02% | +24,228+63.4% | Added |
| HSBC Holdings PLC | 74,131 | $11.1M | 0.01% | +29,932+67.7% | Added |
| State of New Jersey Common Pension Fund D | 73,259 | $10.9M | 0.03% | 00.0% | Unchanged |
| Capital International Sarl | 73,109 | $10.9M | 0.36% | −14,248−16.3% | Reduced |
| LMR Partners LLP | 71,371 | $10.7M | 0.27% | +43,171+153.1% | Added |
| Voya Investment Management LLC | 70,497 | $10.5M | 0.01% | −13,626−16.2% | Reduced |
| Danske Bank A/S | 69,491 | $10.4M | 0.03% | +69,491 | New |
| Tobam | 69,062 | $10.3M | 0.92% | −21,979−24.1% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 68,790 | $10.3M | 0.01% | +12,646+22.5% | Added |
| State of Wisconsin Investment Board | 68,714 | $10.3M | 0.03% | −131,746−65.7% | Reduced |
| Forsta Ap-Fonden | 68,300 | $10.2M | 0.09% | +45,500+199.6% | Added |
| Asset Management One Co.,Ltd. | 67,919 | $10.2M | 0.04% | −1,415−2.0% | Reduced |
| Capital International Ltd | 65,224 | $9.75M | 0.47% | −23,161−26.2% | Reduced |
| Edmond de Rothschild Holding S.A. | 65,050 | $9.72M | 0.16% | +49,250+311.7% | Added |
| APG Asset Management N.V. | 67,405 | $9.33M | 0.02% | −25,868−27.7% | Reduced |
| U.S. Capital Wealth Advisors, LLC | 61,500 | $9.19M | 0.35% | 00.0% | Unchanged |
| Rafferty Asset Management, LLC | 61,206 | $9.15M | 0.03% | +8,398+15.9% | Added |
| Assenagon Asset Management S.A. | 60,342 | $9.02M | 0.02% | +46,176+326.0% | Added |
| Worldquant Millennium Advisors LLC | 60,073 | $8.98M | 0.11% | −894−1.5% | Reduced |
| Ghost Tree Capital, LLC | 60,000 | $8.97M | 2.88% | +32,500+118.2% | Added |
| Russell Investments Group, Ltd. | 58,739 | $8.91M | 0.01% | +27,650+88.9% | Added |
| Van Eck Associates Corp | 57,923 | $8.66M | 0.01% | −3,310−5.4% | Reduced |
| Macquarie Group Ltd | 55,907 | $8.36M | 0.01% | +8,890+18.9% | Added |
| Capital Group Private Client Services, Inc. | 54,421 | $8.13M | 0.08% | +4,660+9.4% | Added |
| Alliancebernstein L.P. | 54,176 | $8.10M | 0.00% | −466,663−89.6% | Reduced |
| Bridger Management, LLC | 52,922 | $7.91M | 3.57% | +34,000+179.7% | Added |
| Public Employees Retirement System of Ohio | 51,548 | $7.70M | 0.03% | −3,869−7.0% | Reduced |
| Ikarian Capital, LLC | 51,541 | $7.70M | 2.10% | +51,541 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 50,014 | $7.47M | 0.03% | +4,934+10.9% | Added |
| Integral Health Asset Management, LLC | 50,000 | $7.47M | 0.73% | +5,000+11.1% | Added |
| Eagle Health Investments LP | 48,356 | $7.23M | 1.38% | −88,400−64.6% | Reduced |
| Great West Life Assurance Co | 47,545 | $7.11M | 0.01% | +1,804+3.9% | Added |
| Resona Asset Management Co.,Ltd. | 46,941 | $7.02M | 0.04% | +46,941 | New |
| Walleye Capital LLC | 46,858 | $7.00M | 0.08% | +22,044+88.8% | Added |
| Brown Advisory Inc | 45,486 | $6.80M | 0.01% | +6,757+17.4% | Added |
| Rhenman & Partners Asset Management AB | 42,300 | $6.32M | 0.60% | +4,800+12.8% | Added |
| HRT Financial LP | 41,927 | $6.26M | 0.04% | +41,927 | New |
| Citadel Advisors LLC | 39,984 | $5.98M | 0.01% | −26,665−40.0% | Reduced |
| Mediolanum International Funds Ltd | 38,556 | $5.95M | 0.10% | +38,556 | New |
| Victory Capital Management Inc | 39,404 | $5.89M | 0.01% | −6,334−13.8% | Reduced |
| Korea Investment CORP | 39,163 | $5.85M | 0.01% | +6,067+18.3% | Added |
| SG Americas Securities, LLC | 38,755 | $5.79M | 0.03% | +38,095+5,772.0% | Added |
| Parnassus Investments | 38,748 | $5.79M | 0.01% | 00.0% | Unchanged |
| APG Asset Management US Inc. | 35,910 | $5.51M | 0.03% | +11,413+46.6% | Added |
| China Universal Asset Management Co., Ltd. | 35,822 | $5.35M | 0.68% | +9,662+36.9% | Added |
| Rosenblum Silverman Sutton S F Inc | 35,470 | $5.30M | 1.50% | −467−1.3% | Reduced |
| USS Investment Management Ltd | 35,414 | $5.29M | 0.04% | +3,712+11.7% | Added |
| Arizona State Retirement System | 34,517 | $5.16M | 0.04% | +161+0.5% | Added |
| Teachers Retirement System of the State of Kentucky | 33,213 | $4.96M | 0.04% | +2,500+8.1% | Added |
| Banque Pictet & Cie SA | 33,005 | $4.93M | 0.05% | +10,176+44.6% | Added |
| Suvretta Capital Management, LLC | 32,660 | $4.88M | 0.21% | +22,800+231.2% | Added |
| Capital Fund Management S.A. | 30,367 | $4.54M | 0.06% | +30,367 | New |
| SEI Investments Co | 29,603 | $4.43M | 0.01% | +3,354+12.8% | Added |
| Erste Asset Management GmbH | 28,510 | $4.40M | 0.06% | 00.0% | Unchanged |
| Robeco Institutional Asset Management B.V. | 28,840 | $4.31M | 0.01% | +4,705+19.5% | Added |
| Teacher Retirement System of Texas | 28,533 | $4.26M | 0.03% | −681−2.3% | Reduced |
| Sector Gamma AS | 27,583 | $4.12M | 1.16% | −4,509−14.1% | Reduced |
| Envestnet Asset Management Inc | 27,435 | $4.10M | 0.00% | +156+0.6% | Added |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 27,415 | $4.10M | 0.05% | −500−1.8% | Reduced |
| Burney Co | 27,059 | $4.04M | 0.15% | +21,325+371.9% | Added |
| Illinois Municipal Retirement Fund | 26,375 | $3.94M | 0.06% | +26,375 | New |
| Seven Eight Capital, LP | 25,809 | $3.86M | 0.40% | +20,572+392.8% | Added |
| IFM Investors Pty Ltd | 25,651 | $3.83M | 0.04% | +780+3.1% | Added |
| Walleye Trading LLC | 25,172 | $3.76M | 0.06% | +2,661+11.8% | Added |
| STRS Ohio | 25,000 | $3.74M | 0.01% | 00.0% | Unchanged |
| DnB Asset Management AS | 24,993 | $3.74M | 0.02% | −21,231−45.9% | Reduced |
| Caisse de Depot Et Placement du Quebec | 24,795 | $3.71M | 0.01% | +5,200+26.5% | Added |
| Engineers Gate Manager LP | 24,723 | $3.69M | 0.10% | +7,292+41.8% | Added |
| Weiss Asset Management LP | 24,676 | $3.69M | 0.17% | +23,484+1,970.1% | Added |
| HAP Trading, LLC | 23,798 | $3.56M | 1.10% | +23,798 | New |
| Edgestream Partners, L.P. | 23,355 | $3.49M | 0.17% | +15,394+193.4% | Added |
| Polar Asset Management Partners Inc. | 22,600 | $3.38M | 0.09% | +22,600 | New |
| Aquatic Capital Management LLC | 21,800 | $3.26M | 0.11% | +900+4.3% | Added |
| Groupama Asset Managment | 2,256 | $3.25M | 0.06% | −15,061−87.0% | Reduced |
| Utah Retirement Systems | 21,525 | $3.22M | 0.04% | +100+0.5% | Added |
| Federation des caisses Desjardins du Quebec | 16,685 | $3.17M | 0.02% | +646+4.0% | Added |
| Guggenheim Capital LLC | 21,162 | $3.16M | 0.02% | +3,411+19.2% | Added |
| Privium Fund Management B.V. | 20,893 | $3.12M | 0.83% | −800−3.7% | Reduced |
| Swedbank AB | 20,639 | $3.08M | 0.00% | −200,000−90.6% | Reduced |
| EFG Asset Management (North America) Corp. | 19,946 | $2.98M | 0.51% | −3,740−15.8% | Reduced |
| Tredje AP-fonden | 19,791 | $2.96M | 0.03% | 00.0% | Unchanged |
| Xponance, Inc. | 19,698 | $2.94M | 0.03% | +5,609+39.8% | Added |
| Principal Financial Group Inc | 19,356 | $2.89M | 0.00% | −273−1.4% | Reduced |
| Gateway Investment Advisers LLC | 19,037 | $2.85M | 0.03% | +60.0% | Added |
| ExodusPoint Capital Management, LP | 18,658 | $2.79M | 0.03% | +18,658 | New |
| Mackenzie Financial Corp | 18,515 | $2.77M | 0.00% | −1,821−9.0% | Reduced |
| Storebrand Asset Management AS | 18,506 | $2.77M | 0.01% | −17,339−48.4% | Reduced |
| Sectoral Asset Management Inc | 18,460 | $2.76M | 1.08% | −4,180−18.5% | Reduced |
| Jump Financial, LLC | 17,554 | $2.62M | 0.07% | +10,262+140.7% | Added |
| LPL Financial LLC | 16,974 | $2.54M | 0.00% | +253+1.5% | Added |
| Capital Group Investment Management Pte. Ltd. | 16,173 | $2.42M | 0.43% | −16,251−50.1% | Reduced |
| Portman Square Capital LLP | 16,023 | $2.39M | 0.54% | +10,060+168.7% | Added |