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 |
| Neuberger Berman Group LLC | 71,664 | $13.7M | 0.01% | −18,176−20.2% | Reduced |
| Citigroup Inc | 72,801 | $13.9M | 0.02% | −6,698−8.4% | Reduced |
| State of New Jersey Common Pension Fund D | 73,259 | $14.0M | 0.05% | +1,674+2.3% | Added |
| Handelsbanken Fonder AB | 74,898 | $14.3M | 0.07% | −94,845−55.9% | Reduced |
| FIL Ltd | 76,837 | $14.7M | 0.02% | −13,131−14.6% | Reduced |
| OrbiMed Advisors LLC | 79,400 | $15.2M | 0.30% | +79,400 | New |
| Hudson Bay Capital Management LP | 82,500 | $15.8M | 0.14% | +36,600+79.7% | Added |
| BNP Paribas Arbitrage, SA | 82,704 | $15.8M | 0.03% | +31,301+60.9% | Added |
| Voya Investment Management LLC | 84,123 | $16.1M | 0.02% | −69,981−45.4% | Reduced |
| APG Asset Management N.V. | 93,273 | $16.2M | 0.03% | −4,286−4.4% | Reduced |
| Point72 Asset Management, L.P. | 85,990 | $16.5M | 0.05% | +85,990 | New |
| Treasurer of the State of North Carolina | 86,697 | $16.6M | 0.08% | +740+0.9% | Added |
| Eventide Asset Management, LLC | 87,000 | $16.7M | 0.27% | +87,000 | New |
| Capital International Sarl | 87,357 | $16.7M | 0.63% | +435+0.5% | Added |
| Ensign Peak Advisors, Inc | 87,597 | $16.8M | 0.03% | +28,373+47.9% | Added |
| Capital International Ltd | 88,385 | $16.9M | 0.87% | −4,571−4.9% | Reduced |
| UBS Group AG | 90,473 | $17.3M | 0.01% | +20,571+29.4% | Added |
| Tobam | 91,041 | $17.4M | 1.52% | −12,003−11.6% | Reduced |
| Skandinaviska Enskilda Banken AB (publ) | 93,257 | $17.9M | 0.10% | +320.0% | Added |
| D. E. Shaw & Co., Inc. | 95,544 | $18.3M | 0.03% | −108,548−53.2% | Reduced |
| Jane Street Group, LLC | 97,363 | $18.6M | 0.02% | +42,327+76.9% | Added |
| Capital International Inc | 100,022 | $19.1M | 0.30% | +3,549+3.7% | Added |
| New York State Common Retirement Fund | 111,914 | $21.4M | 0.03% | −13,049−10.4% | Reduced |
| Massachusetts Financial Services Co | 112,240 | $21.5M | 0.01% | −575,988−83.7% | Reduced |
| Novo Holdings A/S | 118,383 | $22.7M | 1.51% | 00.0% | Unchanged |
| HighTower Advisors, LLC | 124,220 | $23.8M | 0.04% | −219−0.2% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 125,379 | $24.0M | 0.07% | +12,249+10.8% | Added |
| State Board of Administration of Florida Retirement System | 135,887 | $26.0M | 0.05% | +4,677+3.6% | Added |
| Eagle Health Investments LP | 136,756 | $26.2M | 5.32% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 137,141 | $26.3M | 0.07% | +137,141 | New |
| DekaBank Deutsche Girozentrale | 137,885 | $26.8M | 0.05% | −5,215−3.6% | Reduced |
| Barclays PLC | 142,000 | $27.2M | 0.01% | −20,195−12.5% | Reduced |
| Franklin Resources Inc | 150,928 | $28.9M | 0.01% | +634+0.4% | Added |
| Palo Alto Investors LP | 154,437 | $29.6M | 2.66% | +154,437 | New |
| AXA S.A. | 167,053 | $32.0M | 0.10% | −10,424−5.9% | Reduced |
| National Pension Service | 167,770 | $32.1M | 0.04% | 00.0% | Unchanged |
| Rhumbline Advisers | 172,873 | $33.1M | 0.03% | +802+0.5% | Added |
| CIBC Private Wealth Group, LLC | 173,701 | $33.2M | 0.07% | −429−0.2% | Reduced |
| Credit Suisse AG | 175,976 | $33.7M | 0.03% | +10,564+6.4% | Added |
| Invesco Ltd. | 176,860 | $33.9M | 0.01% | −39,709−18.3% | Reduced |
| California Public Employees Retirement System | 179,330 | $34.3M | 0.03% | −48,500−21.3% | Reduced |
| Polar Capital Holdings Plc | 185,000 | $35.4M | 0.25% | −50,000−21.3% | Reduced |
| Antipodes Partners Ltd | 189,141 | $36.2M | 1.13% | +77,307+69.1% | Added |
| California State Teachers Retirement System | 191,578 | $36.7M | 0.05% | +1,347+0.7% | Added |
| Casdin Capital, LLC | 195,000 | $37.3M | 3.68% | −5,000−2.5% | Reduced |
| State of Wisconsin Investment Board | 200,460 | $38.4M | 0.11% | −1,445−0.7% | Reduced |
| Swedbank AB | 220,639 | $42.2M | 0.07% | 00.0% | Unchanged |
| Wells Fargo & Company | 229,630 | $44.0M | 0.01% | −36,105−13.6% | Reduced |
| Standard Life Aberdeen plc | 232,716 | $44.5M | 0.10% | +209,691+910.7% | Added |
| Rock Springs Capital Management LP | 235,000 | $45.0M | 1.11% | −44,500−15.9% | Reduced |
| Canada Pension Plan Investment Board | 242,998 | $46.5M | 0.06% | +91,700+60.6% | Added |
| Candriam Luxembourg S.C.A. | 250,384 | $47.9M | 0.33% | −78,510−23.9% | Reduced |
| Royal Bank of Canada | 257,955 | $49.4M | 0.01% | +13,849+5.7% | Added |
| Eagle Asset Management Inc | 262,865 | $50.3M | 0.27% | +185+0.1% | Added |
| Dimensional Fund Advisors LP | 267,034 | $51.1M | 0.01% | +15,123+6.0% | Added |
| CI Private Wealth, LLC | 274,696 | $52.6M | 0.10% | +1,579+0.6% | Added |
| Janus Henderson Group PLC | 278,081 | $53.2M | 0.03% | −15,409−5.3% | Reduced |
| Goldman Sachs Group Inc | 291,368 | $55.8M | 0.01% | −20,677−6.6% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 295,279 | $56.5M | 0.04% | −1,421−0.5% | Reduced |
| First Trust Advisors LP | 306,693 | $58.7M | 0.06% | +73,203+31.4% | Added |
| Royal London Asset Management Ltd | 308,824 | $59.1M | 0.17% | +2,229+0.7% | Added |
| Bank of America Corp | 316,233 | $60.5M | 0.01% | −34,920−9.9% | Reduced |
| Squarepoint Ops LLC | 335,826 | $64.3M | 0.26% | +98,192+41.3% | Added |
| Manufacturers Life Insurance Company, The | 340,820 | $65.2M | 0.04% | −15,043−4.2% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 349,120 | $66.8M | 0.16% | −37,552−9.7% | Reduced |
| Ameriprise Financial Inc | 377,659 | $72.3M | 0.02% | −328,541−46.5% | Reduced |
| Swiss National Bank | 390,800 | $74.8M | 0.05% | −9,800−2.4% | Reduced |
| American Century Companies Inc | 414,944 | $79.4M | 0.05% | −27,799−6.3% | Reduced |
| Charles Schwab Investment Management Inc | 438,304 | $83.9M | 0.02% | +19,324+4.6% | Added |
| Deutsche Bank AG | 462,319 | $88.5M | 0.05% | −537−0.1% | Reduced |
| TD Asset Management Inc | 466,085 | $89.2M | 0.09% | −29,279−5.9% | Reduced |
| Alliancebernstein L.P. | 520,839 | $99.7M | 0.04% | −19,867−3.7% | Reduced |
| Nuveen Asset Management, LLC | 543,411 | $104.0M | 0.03% | −3,047−0.6% | Reduced |
| Gilder Gagnon Howe & Co LLC | 587,045 | $112.4M | 1.54% | −7,934−1.3% | Reduced |
| Loomis Sayles & Co L P | 608,728 | $116.5M | 0.18% | −16,673−2.7% | Reduced |
| Amundi | 711,692 | $141.1M | 0.06% | +97,333+15.8% | Added |
| UBS Asset Management Americas Inc | 741,061 | $141.8M | 0.06% | −33,415−4.3% | Reduced |
| Legal & General Group Plc | 758,504 | $145.2M | 0.05% | −36,167−4.6% | Reduced |
| Northern Trust Corp | 764,520 | $146.3M | 0.03% | −33,180−4.2% | Reduced |
| Morgan Stanley | 806,595 | $154.4M | 0.01% | −402,788−33.3% | Reduced |
| Bank of New York Mellon Corp | 837,131 | $160.2M | 0.03% | +470.0% | Added |
| Bellevue Group AG | 885,318 | $169.5M | 2.59% | −9,027−1.0% | Reduced |
| Pictet Asset Management Holding SA | 885,585 | $169.5M | 0.19% | +94,830+12.0% | Added |
| Avoro Capital Advisors LLC | 1,111,111 | $212.7M | 2.94% | +100,000+9.9% | Added |
| RTW Investments, LP | 1,640,559 | $314.0M | 4.91% | −42,803−2.5% | Reduced |
| Geode Capital Management, LLC | 1,926,736 | $368.2M | 0.04% | +87,231+4.7% | Added |
| Norges Bank | 2,039,798 | $390.4M | 0.07% | +846,232+70.9% | Added |
| Capital Research Global Investors | 2,930,079 | $560.9M | 0.14% | +146,236+5.3% | Added |
| JPMorgan Chase & Co | 3,016,141 | $577.3M | 0.06% | −70,705−2.3% | Reduced |
| State Street Corp | 3,118,552 | $596.9M | 0.03% | +219,039+7.6% | Added |
| T. Rowe Price Investment Management, Inc. | 3,426,063 | $655.8M | 0.43% | +27,204+0.8% | Added |
| Price T Rowe Associates Inc | 3,483,969 | $666.9M | 0.09% | −441,035−11.2% | Reduced |
| Capital International Investors | 3,586,657 | $686.6M | 0.15% | +488,814+15.8% | Added |
| Dodge & Cox | 3,674,310 | $703.3M | 0.45% | −72,845−1.9% | Reduced |
| Baillie Gifford & Co | 6,967,097 | $1.33B | 1.06% | −1,196,042−14.7% | Reduced |
| Wellington Management Group LLP | 7,214,198 | $1.38B | 0.26% | +782,384+12.2% | Added |
| BlackRock Inc. | 8,521,115 | $1.63B | 0.04% | +128,111+1.5% | Added |
| FMR LLC | 10,312,356 | $1.97B | 0.15% | −969,050−8.6% | Reduced |
| Vanguard Group Inc | 11,943,895 | $2.29B | 0.05% | +287,064+2.5% | Added |