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 2021
Institutional positions in Alnylam Pharmaceuticals, Inc. as of Dec 31, 2021. 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
- 435
- +36 vs. Q3 2021
- Shares held
- 112.1M
- +547.7K (+0.5%) vs. Q3 2021
- Total value
- $19.0B
- −$2.05B (−9.7%) vs. Q3 2021
- New holders
- 77
- 156 more added
- Sold out
- 41
- 132 more reduced
8 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2021: 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 2021
Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q3 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Prosight Management, LP | 31,907 | $5.41M | 3.60% | +31,907 | New |
| Rafferty Asset Management, LLC | 31,945 | $5.42M | 0.03% | +15,515+94.4% | Added |
| Jefferies Group LLC | 31,959 | $5.42M | 0.10% | +18,515+137.7% | Added |
| Arizona State Retirement System | 32,359 | $5.49M | 0.04% | −629−1.9% | Reduced |
| Federation des caisses Desjardins du Quebec | 32,446 | $5.50M | 0.05% | −1,569−4.6% | Reduced |
| Envestnet Asset Management Inc | 34,313 | $5.82M | 0.00% | +2,828+9.0% | Added |
| Karani Asset Management LLC | 34,675 | $5.88M | 2.91% | +2,186+6.7% | Added |
| Logos Global Management LP | 35,000 | $5.93M | 0.61% | +35,000 | New |
| Erste Asset Management GmbH | 36,800 | $6.26M | 0.11% | 00.0% | Unchanged |
| Aviva PLC | 38,217 | $6.48M | 0.03% | +1,965+5.4% | Added |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 39,915 | $6.77M | 0.06% | −969−2.4% | Reduced |
| Royal London Asset Management Ltd | 40,303 | $6.84M | 0.03% | −977−2.4% | Reduced |
| Bank of Montreal | 39,484 | $6.85M | 0.00% | −13,857−26.0% | Reduced |
| Ensign Peak Advisors, Inc | 40,760 | $6.91M | 0.01% | −127,839−75.8% | Reduced |
| HSBC Holdings PLC | 41,340 | $7.02M | 0.01% | +12,626+44.0% | Added |
| Lord, Abbett & Co. LLC | 42,000 | $7.12M | 0.02% | −238,000−85.0% | Reduced |
| Rosenblum Silverman Sutton S F Inc | 42,359 | $7.18M | 1.62% | −665−1.5% | Reduced |
| Macquarie Group Ltd | 43,115 | $7.31M | 0.01% | −10,478−19.6% | Reduced |
| Eaton Vance Management | 43,335 | $7.35M | 0.01% | −674−1.5% | Reduced |
| Raymond James & Associates | 43,503 | $7.38M | 0.01% | +3,802+9.6% | Added |
| Wells Fargo & Company | 45,167 | $7.66M | 0.00% | −91,083−66.8% | Reduced |
| D. E. Shaw & Co., Inc. | 46,340 | $7.86M | 0.01% | +13,277+40.2% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 46,489 | $7.95M | 0.04% | +5,200+12.6% | Added |
| 683 Capital Management, LLC | 49,000 | $8.31M | 0.40% | 00.0% | Unchanged |
| Allianz Asset Management GmbH | 51,064 | $8.67M | 0.01% | −4,490−8.1% | Reduced |
| Great West Life Assurance Co | 51,477 | $8.71M | 0.02% | −15,739−23.4% | Reduced |
| Asset Management One Co.,Ltd. | 52,312 | $8.90M | 0.03% | −336−0.6% | Reduced |
| Storebrand Asset Management AS | 52,855 | $8.96M | 0.04% | −452−0.8% | Reduced |
| Canada Pension Plan Investment Board | 56,137 | $9.52M | 0.01% | −35,151−38.5% | Reduced |
| DekaBank Deutsche Girozentrale | 56,279 | $9.54M | 0.02% | +11,843+26.7% | Added |
| Victory Capital Management Inc | 56,362 | $9.56M | 0.01% | +484+0.9% | Added |
| Parkman Healthcare Partners LLC | 57,682 | $9.78M | 2.21% | −17,285−23.1% | Reduced |
| Teachers Retirement System of the State of Kentucky | 58,126 | $9.86M | 0.09% | +5,835+11.2% | Added |
| Voya Investment Management LLC | 58,727 | $9.96M | 0.02% | +21,248+56.7% | Added |
| Driehaus Capital Management LLC | 63,011 | $10.7M | 0.11% | +18,509+41.6% | Added |
| Korea Investment CORP | 63,062 | $10.7M | 0.03% | +39,762+170.7% | Added |
| Nomura Asset Management Co Ltd | 63,527 | $10.8M | 0.05% | +20,703+48.3% | Added |
| Public Employees Retirement System of Ohio | 64,791 | $11.0M | 0.04% | −2,219−3.3% | Reduced |
| BNP Paribas Arbitrage, SA | 66,019 | $11.2M | 0.03% | −11,162−14.5% | Reduced |
| Jacobs Levy Equity Management, Inc | 67,746 | $11.5M | 0.08% | +67,746 | New |
| Citigroup Inc | 69,310 | $11.8M | 0.01% | −1,682−2.4% | Reduced |
| Alliancebernstein L.P. | 69,880 | $11.8M | 0.00% | +3,194+4.8% | Added |
| Eversept Partners, LP | 70,240 | $11.9M | 0.99% | +11,007+18.6% | Added |
| Citadel Advisors LLC | 70,768 | $12.0M | 0.01% | +49,889+238.9% | Added |
| State of New Jersey Common Pension Fund D | 71,899 | $12.2M | 0.04% | 00.0% | Unchanged |
| Mirae Asset Global Investments Co., Ltd. | 75,169 | $12.8M | 0.03% | −9,294−11.0% | Reduced |
| Treasurer of the State of North Carolina | 75,784 | $12.9M | 0.07% | −520−0.7% | Reduced |
| USS Investment Management Ltd | 75,740 | $12.9M | 0.10% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 75,668 | $12.9M | 0.02% | +17,891+31.0% | Added |
| Parnassus Investments | 77,587 | $13.2M | 0.03% | 00.0% | Unchanged |
| Balyasny Asset Management LLC | 81,241 | $13.8M | 0.06% | +41,097+102.4% | Added |
| Tobam | 81,853 | $13.9M | 0.62% | +72,659+790.3% | Added |
| Barclays PLC | 81,965 | $13.9M | 0.01% | −15,510−15.9% | Reduced |
| Morningstar Investment Services LLC | 82,567 | $14.0M | 0.16% | +1,973+2.4% | Added |
| Millennium Management LLC | 83,417 | $14.1M | 0.02% | +71,585+605.0% | Added |
| UBS Group AG | 89,473 | $15.2M | 0.01% | +67,281+303.2% | Added |
| State of Wisconsin Investment Board | 93,201 | $15.8M | 0.03% | −6,189−6.2% | Reduced |
| EcoR1 Capital, LLC | 98,146 | $16.6M | 0.53% | +98,146 | New |
| Van Eck Associates Corp | 98,614 | $16.7M | 0.04% | +5,913+6.4% | Added |
| Natixis | 104,062 | $17.6M | 0.06% | +1,546+1.5% | Added |
| Credit Suisse AG | 113,539 | $19.3M | 0.02% | −44,147−28.0% | Reduced |
| Eagle Health Investments LP | 113,702 | $19.3M | 4.70% | +23,600+26.2% | Added |
| Jane Street Group, LLC | 115,957 | $19.7M | 0.04% | +100,355+643.2% | Added |
| CIBC Private Wealth Group, LLC | 118,252 | $20.1M | 0.04% | −893−0.7% | Reduced |
| Rhumbline Advisers | 119,832 | $20.3M | 0.02% | +3,723+3.2% | Added |
| International Biotechnology Trust PLC | 128,000 | $21.7M | 4.84% | +53,000+70.7% | Added |
| HighTower Advisors, LLC | 129,653 | $22.0M | 0.05% | +123,016+1,853.5% | Added |
| Adage Capital Partners GP, L.L.C. | 132,300 | $22.4M | 0.04% | +132,300 | New |
| Susquehanna International Group, LLP | 142,955 | $24.2M | 0.04% | +98,562+222.0% | Added |
| State Board of Administration of Florida Retirement System | 147,993 | $25.1M | 0.05% | −2,091−1.4% | Reduced |
| Assenagon Asset Management S.A. | 174,443 | $29.6M | 0.11% | −159,846−47.8% | Reduced |
| National Pension Service | 175,793 | $29.8M | 0.05% | −5,310−2.9% | Reduced |
| Rhenman & Partners Asset Management AB | 175,000 | $29.9M | 1.99% | +75,000+75.0% | Added |
| Dimensional Fund Advisors LP | 179,160 | $30.4M | 0.01% | −8,103−4.3% | Reduced |
| New York State Common Retirement Fund | 187,641 | $31.8M | 0.03% | +6,717+3.7% | Added |
| Handelsbanken Fonder AB | 187,800 | $31.8M | 0.16% | +167,700+834.3% | Added |
| Tekla Capital Management LLC | 189,695 | $32.2M | 1.04% | 00.0% | Unchanged |
| Parametric Portfolio Associates LLC | 205,698 | $34.9M | 0.02% | −2,839−1.4% | Reduced |
| California State Teachers Retirement System | 209,732 | $35.6M | 0.04% | +4,340+2.1% | Added |
| Franklin Resources Inc | 210,307 | $35.7M | 0.01% | +60,652+40.5% | Added |
| AXA S.A. | 213,704 | $36.2M | 0.09% | +52,272+32.4% | Added |
| Amundi | 254,255 | $37.6M | 0.02% | −6,114−2.3% | Reduced |
| Artisan Partners Limited Partnership | 239,136 | $40.6M | 0.05% | −3,648−1.5% | Reduced |
| Candriam Luxembourg S.C.A. | 240,571 | $40.8M | 0.26% | +107,492+80.8% | Added |
| Eagle Asset Management Inc | 255,330 | $43.7M | 0.19% | +1,549+0.6% | Added |
| Bank of America Corp | 264,478 | $44.8M | 0.00% | −39,706−13.1% | Reduced |
| Deutsche Bank AG | 274,648 | $46.6M | 0.02% | −7,514−2.7% | Reduced |
| California Public Employees Retirement System | 309,675 | $52.5M | 0.04% | −9,284−2.9% | Reduced |
| Capital World Investors | 318,946 | $54.1M | 0.01% | 00.0% | Unchanged |
| Sumitomo Mitsui Trust Holdings, Inc. | 324,452 | $55.0M | 0.03% | −8,119−2.4% | Reduced |
| Rock Springs Capital Management LP | 332,500 | $56.4M | 1.30% | +21,500+6.9% | Added |
| Charles Schwab Investment Management Inc | 362,961 | $61.6M | 0.02% | +10,146+2.9% | Added |
| Avidity Partners Management LP | 370,000 | $62.7M | 1.33% | −57,000−13.3% | Reduced |
| Rockefeller Capital Management L.P. | 386,260 | $65.5M | 0.31% | +68,160+21.4% | Added |
| TD Asset Management Inc | 396,473 | $67.2M | 0.06% | +161,789+68.9% | Added |
| Swedbank AB | 436,565 | $74.7M | 0.13% | +670.0% | Added |
| Swiss National Bank | 451,710 | $76.6M | 0.05% | −12,900−2.8% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 471,011 | $79.9M | 0.17% | −15,837−3.3% | Reduced |
| Janus Henderson Group PLC | 501,333 | $85.0M | 0.04% | +479,756+2,223.5% | Added |
| First Trust Advisors LP | 507,096 | $86.0M | 0.08% | −25,190−4.7% | Reduced |