Alnylam PharmaceuticalsALNY
13F holders, Q2 2024 (June 30)523holders +25
83new positions
55sold out
6famous investors
$243.05avg. 13F price*
At the end of Q2 2024, 523 institutions reported holding Alnylam Pharmaceuticals Inc. (ALNY) in their 13F filings, up 25 from Q1 2024. 83 opened new positions and 55 sold out. The largest holders were Capital World Investors ($3.6B), Vanguard Group Inc. ($3.0B) and FMR LLC ($3.0B). 6 famous investors held it, including Paul Tudor Jones (0.2% of Tudor Investment Corporation's portfolio), David E. Shaw (0.1% of D. E. Shaw & Co.'s portfolio) and Cliff Asness (0.1% of AQR Capital Management's portfolio).
- Company
- Alnylam Pharmaceuticals Inc.
- Sector
- Health Care
- CUSIP
- 02043Q107
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2024 → Q2 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 83 | $504.9M |
| Exits | 55 | $251.6M |
All 13F filers, Q1 2024 → Q2 2024: 12,115,610 shares bought and 6,928,435 shares sold, net +5,187,175 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 523 holders
| Capital World Investors | 0.59% | Add +17.1% | 14,971,343 | $3.6B |
| Vanguard Group Inc. | 0.06% | Add +4.3% | 12,507,778 | $3.0B |
| FMR LLC | 0.19% | Add +22.0% | 12,164,038 | $3.0B |
| BlackRock Inc. | 0.05% | Add +5.8% | 9,547,663 | $2.3B |
| Wellington Management Group LLP | 0.27% | Reduce -13.8% | 6,210,479 | $1.5B |
| Baillie Gifford & Co. | 1.14% | Reduce -8.9% | 6,032,656 | $1.5B |
| Capital International Investors | 0.19% | Add +6.6% | 3,891,059 | $945.7M |
| Dodge & Cox | 0.55% | Reduce -0.8% | 3,780,185 | $918.6M |
| State Street Corp. | 0.04% | Add +10.8% | 3,534,836 | $859.0M |
| T. Rowe Price Associates Inc. | 0.10% | Reduce -5.4% | 3,488,003 | $847.6M |
| Capital Research Global Investors | 0.17% | Add +3.5% | 3,255,648 | $791.1M |
| T. Rowe Price Investment Management, Inc. | 0.48% | Add +9.8% | 3,153,627 | $766.3M |
| Norges Bank | 0.08% | Add +0.2% | 2,296,781 | $558.1M |
| Geode Capital Management, LLC | 0.04% | Add +3.9% | 2,080,275 | $504.6M |
| JPMorgan Chase & Co. | 0.04% | Add +1.4% | 1,772,871 | $430.8M |
| American Century Companies Inc. | 0.20% | Reduce -1.4% | 1,354,169 | $329.1M |
| Bellevue Group AG | 3.63% | Add +0.2% | 919,834 | $223.5M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.06% | Add +10.1% | 835,413 | $203.0M |
| Northern Trust Corp. | 0.03% | Add +5.6% | 780,835 | $189.7M |
| Legal & General Group Plc | 0.05% | Add +1.5% | 761,919 | $185.1M |
| Pictet Asset Management Holding SA | 0.21% | Reduce -21.1% | 758,528 | $184.3M |
| Amundi | 0.07% | Reduce -1.2% | 737,290 | $183.3M |
| Morgan Stanley | 0.01% | Add +9.8% | 741,514 | $180.2M |
| Orbis Allan Gray Ltd | 1.09% | New | 721,053 | $175.2M |
| Bank of New York Mellon Corp | 0.03% | Reduce -15.6% | 673,702 | $163.7M |
| Bank of America Corp. | 0.01% | Add +30.1% | 631,112 | $153.4M |
| Nuveen Asset Management, LLC | 0.04% | Add +14.9% | 588,469 | $143.0M |
| Loomis Sayles & Co. L P | 0.19% | Reduce -2.2% | 569,282 | $138.3M |
| Goldman Sachs Group Inc. | 0.02% | Add +97.9% | 514,667 | $125.1M |
| Deep Track Capital, LP | 3.63% | Reduce -39.9% | 500,000 | $121.5M |
| TD Asset Management Inc | 0.11% | Add +6.0% | 489,940 | $119.1M |
| Deutsche Bank AG | 0.05% | Reduce -3.5% | 489,118 | $118.9M |
| Charles Schwab Investment Management Inc. | 0.02% | Add +5.2% | 470,592 | $114.4M |
| Royal Bank of Canada | 0.02% | Add +9.9% | 411,364 | $100.0M |
| Citigroup Inc. | 0.09% | Add +166.6% | 401,660 | $97.6M |
| Avoro Capital Advisors LLC | 1.29% | Add +33.3% | 400,000 | $97.2M |
| Gilder Gagnon Howe & Co. LLC | 1.21% | Reduce -1.6% | 398,616 | $96.9M |
| Invesco Ltd. | 0.02% | Add +120.3% | 392,841 | $95.5M |
| Swiss National Bank | 0.06% | Reduce -0.4% | 374,400 | $91.0M |
| Citadel Advisors | 0.09% | Add +818.6% | 367,289 | $89.3M |
| Candriam S.C.A. | 0.52% | Add +10.8% | 351,228 | $85.3M |
| Manufacturers Life Insurance Company, The | 0.07% | Reduce -2.4% | 329,037 | $80.0M |
| Franklin Resources Inc. | 0.02% | Add +21.8% | 289,326 | $70.3M |
| Polar Capital Holdings Plc | 0.41% | Add +21.3% | 285,000 | $69.3M |
| Canada Pension Plan Investment Board | 0.07% | Add +3.7% | 283,933 | $69.0M |
| Royal London Asset Management Ltd. | 0.18% | Reduce -13.6% | 282,345 | $68.6M |
| D. E. Shaw & Co. | 0.10% | Add +170.2% | 279,398 | $67.9M |
| Sumitomo Mitsui Trust Group, Inc. | 0.05% | Reduce -4.8% | 276,947 | $67.3M |
| Corient Private Wealth LP | 0.12% | Add +0.1% | 274,736 | $66.8M |
| AQR Capital Management | 0.10% | Add +92.5% | 271,619 | $65.9M |
| Mitsubishi UFJ Trust & Banking Corp | 0.16% | Reduce -13.9% | 268,440 | $65.2M |
| Dimensional Fund Advisors LP | 0.02% | Add +4.3% | 266,206 | $64.7M |
| Two Sigma Advisers, LP | 0.14% | Add +36.5% | 258,700 | $62.9M |
| Adage Capital Partners Gp, L.L.C. | 0.11% | New | 254,000 | $61.7M |
| Orbimed Advisors LLC | 1.21% | New | 250,300 | $60.8M |
| Rock Springs Capital Management LP | 1.84% | Add +2.5% | 250,000 | $60.8M |
| Janus Henderson Group PLC | 0.03% | Add +39.4% | 249,440 | $60.6M |
| Eagle Asset Management Inc. | 0.32% | Reduce -4.7% | 246,204 | $59.9M |
| ANTIPODES PARTNERS Ltd | 2.16% | Add +16.1% | 238,749 | $59.4M |
| First Trust Advisors LP | 0.06% | Add +10.7% | 240,547 | $58.5M |
| Ameriprise Financial Inc. | 0.02% | Add +22.4% | 238,320 | $57.9M |
| Avidity Partners Management LP | 2.29% | Reduce -8.6% | 222,000 | $53.9M |
| CIBC Private Wealth Group LLC | 0.10% | Add +18.4% | 206,391 | $52.7M |
| California Public Employees Retirement System | 0.04% | Add +0.6% | 215,567 | $52.4M |
| Wells Fargo & Company | 0.01% | Reduce -0.1% | 206,148 | $50.1M |
| Aberdeen Group plc | 0.09% | Reduce -8.8% | 199,978 | $48.6M |
| National Pension Service | 0.05% | Add +5.5% | 196,387 | $47.7M |
| California State Teachers Retirement System | 0.06% | Add +1.1% | 193,594 | $47.0M |
| Rhumbline Advisers | 0.04% | Reduce -0.2% | 173,327 | $42.1M |
| Caption Management, LLC | 4.44% | Add +49.5% | 170,550 | $41.4M |
| Casdin Capital, LLC | 3.15% | Reduce -52.5% | 170,000 | $41.3M |
| Frontier Capital Management Co. LLC | 0.41% | New | 168,442 | $40.9M |
| UBS Group AG | 0.01% | Add +25.8% | 156,583 | $38.0M |
| Sofinnova Investments, Inc. | 2.27% | Add +43.6% | 147,929 | $35.9M |
| Jane Street Group, LLC | 0.04% | Reduce -14.9% | 139,497 | $33.9M |
| Millennium Management | 0.03% | Reduce -31.5% | 138,504 | $33.7M |
| State Board of Administration of Florida Retirement System | 0.06% | Reduce -1.2% | 135,347 | $32.9M |
| Barclays PLC | 0.01% | Reduce -32.3% | 131,265 | $31.9M |
| Worldquant Millennium Advisors LLC | 0.29% | Add +115.7% | 129,593 | $31.5M |
| BNP Paribas Financial Markets | 0.03% | Add +24.2% | 126,012 | $30.6M |
| HighTower Advisors, LLC | 0.05% | Reduce -0.8% | 125,041 | $30.4M |
| Assenagon Asset Management S.A. | 0.07% | Add +103.5% | 122,796 | $29.8M |
| Deerfield Management Company, L.P. | 0.56% | New | 119,800 | $29.1M |
| Novo Holdings A/S | 1.55% | No change | 118,383 | $28.8M |
| Man Group plc | 0.08% | Reduce -43.9% | 117,910 | $28.7M |
| DekaBank Deutsche Girozentrale | 0.05% | Add +0.4% | 113,463 | $27.9M |
| Voya Investment Management LLC | 0.03% | Add +62.0% | 114,234 | $27.8M |
| Capital International, Inc. | 0.37% | Add +22.1% | 113,984 | $27.7M |
| Korea Investment CORP | 0.07% | Add +187.0% | 112,383 | $27.3M |
| AXA S.A. | 0.08% | Add +3.1% | 110,975 | $27.0M |
| Capital International Sarl | 0.81% | Add +50.2% | 109,815 | $26.7M |
| Skandinaviska Enskilda Banken AB (publ) | 0.12% | Add +13.1% | 106,892 | $26.0M |
| Two Sigma Investments, LP | 0.06% | Add +0.4% | 102,918 | $25.0M |
| Squarepoint Ops LLC | 0.09% | Reduce -83.0% | 98,794 | $24.0M |
| Neuberger Berman Group LLC | 0.02% | Add +4.4% | 95,408 | $23.2M |
| New York State Common Retirement Fund | 0.03% | Add +1.0% | 94,685 | $23.0M |
| Capital International Ltd. | 1.06% | Add +44.5% | 94,225 | $22.9M |
| Federated Hermes, Inc. | 0.05% | Reduce -37.6% | 92,608 | $22.5M |
| APG Asset Management N.V. | 0.04% | Add +38.8% | 93,565 | $21.2M |
| Eventide Asset Management, LLC | 0.36% | No change | 87,000 | $21.1M |
"% of holder's portfolio" is ALNY's weight in each manager's 13F, not the share of Alnylam Pharmaceuticals Inc. the manager owns.