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, Q2 2025
Institutional positions in Alnylam Pharmaceuticals, Inc. as of Jun 30, 2025. 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
- 653
- +35 vs. Q1 2025
- Shares held
- 132.1M
- +2.77M (+2.1%) vs. Q1 2025
- Total value
- $43.1B
- +$8.27B (+23.8%) vs. Q1 2025
- New holders
- 98
- 262 more added
- Sold out
- 63
- 214 more reduced
7 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2025: 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, Q2 2025
Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Loring Wolcott & Coolidge Fiduciary Advisors LLP | 1,533 | $499.9K | 0.00% | 00.0% | Unchanged |
| Qsemble Capital Management, LP | 1,530 | $498.9K | 0.05% | +334+27.9% | Added |
| Wiley Bros.-Aintree Capital, LLC | 1,530 | $497.9K | 0.00% | +702+84.8% | Added |
| High Net Worth Advisory Group LLC | 1,500 | $489.1K | 0.13% | 00.0% | Unchanged |
| Virtus Investment Advisers, Inc. | 1,459 | $475.8K | 0.16% | −8−0.5% | Reduced |
| Sara-Bay Financial | 1,450 | $472.8K | 0.17% | +450+45.0% | Added |
| Avantax Advisory Services, Inc. | 1,446 | $471.5K | 0.00% | +1,446 | New |
| Ewing Morris & Co. Investment Partners Ltd. | 1,440 | $469.6K | 0.21% | +1,440 | New |
| Fulton Bank, N.A. | 1,421 | $463.4K | 0.02% | +46+3.3% | Added |
| Banque Pictet & Cie SA | 1,391 | $453.6K | 0.00% | −92−6.2% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 1,384 | $451.0K | 0.00% | +595+75.4% | Added |
| Souders Financial Advisors | 1,359 | $443.2K | 0.06% | −434−24.2% | Reduced |
| Steward Partners Investment Advisory, LLC | 1,357 | $442.3K | 0.00% | +295+27.8% | Added |
| Voleon Capital Management LP | 1,356 | $442.2K | 0.02% | −10,558−88.6% | Reduced |
| Westpac Banking Corp | 1,355 | $441.9K | 0.03% | −3,718−73.3% | Reduced |
| Ossiam | 1,355 | $441.9K | 0.00% | +19+1.4% | Added |
| Vise Technologies, Inc. | 1,334 | $435.1K | 0.02% | +1,334 | New |
| Oppenheimer Asset Management Inc. | 1,328 | $433.0K | 0.00% | +1,328 | New |
| Abn Amro Investment Solutions | 1,310 | $427.2K | 0.01% | 00.0% | Unchanged |
| North Star Asset Management Inc | 1,305 | $425.5K | 0.02% | 00.0% | Unchanged |
| Ronald Blue Trust, Inc. | 1,293 | $421.6K | 0.00% | +135+11.7% | Added |
| Beacon Investment Advisory Services, Inc. | 1,290 | $420.7K | 0.02% | −398−23.6% | Reduced |
| Plante Moran Financial Advisors, LLC | 1,285 | $419.0K | 0.03% | 00.0% | Unchanged |
| Asahi Life Asset Management Co., Ltd. | 1,280 | $417.4K | 0.24% | −160−11.1% | Reduced |
| Fox Run Management, L.L.C. | 1,263 | $411.9K | 0.07% | +1,263 | New |
| TB Alternative Assets Ltd. | 1,259 | $410.5K | 0.08% | −7,909−86.3% | Reduced |
| Crowley Wealth Management, Inc. | 1,250 | $407.6K | 0.37% | 00.0% | Unchanged |
| Cigna Investments Inc | 1,245 | $406.0K | 0.07% | −52−4.0% | Reduced |
| Banco Santander, S.A. | 1,245 | $406.0K | 0.00% | +1,245 | New |
| Quantitative Investment Management, LLC | 1,238 | $403.0K | 0.05% | +1,238 | New |
| Frank, Rimerman Advisors LLC | 1,227 | $400.1K | 0.03% | +1,227 | New |
| Wetherby Asset Management Inc | 1,226 | $399.8K | 0.02% | +1,226 | New |
| NewEdge Wealth, LLC | 902 | $392.5K | 0.01% | +902 | New |
| Envestnet Portfolio Solutions, Inc. | 1,164 | $379.6K | 0.00% | +297+34.3% | Added |
| Mathes Company, Inc. | 1,155 | $377.0K | 0.14% | +1,155 | New |
| Peregrine Capital Management LLC | 1,147 | $374.0K | 0.01% | 00.0% | Unchanged |
| Snowden Capital Advisors LLC | 1,136 | $370.4K | 0.01% | +307+37.0% | Added |
| Group One Trading, L.P. | 1,134 | $369.8K | 0.01% | −5,068−81.7% | Reduced |
| Meeder Advisory Services, Inc. | 1,125 | $366.9K | 0.02% | +147+15.0% | Added |
| Clearstead Advisors, LLC | 1,123 | $366.2K | 0.01% | −181−13.9% | Reduced |
| Harvest Fund Management Co., Ltd | 1,125 | $366.0K | 0.02% | +1,125 | New |
| Resources Investment Advisors, LLC. | 1,117 | $364.2K | 0.00% | −94−7.8% | Reduced |
| Wolverine Trading, LLC | 1,122 | $362.2K | 0.01% | −1,316−54.0% | Reduced |
| Towarzystwo Funduszy Inwestycyjnych Pzu SA | 1,102 | $359.4K | 0.10% | −60−5.2% | Reduced |
| Entropy Technologies, LP | 1,100 | $358.7K | 0.03% | +1,100 | New |
| Diversified Trust Co | 1,098 | $358.0K | 0.01% | −384−25.9% | Reduced |
| Nwam LLC | 912 | $357.7K | 0.02% | +5+0.6% | Added |
| Kestra Advisory Services, LLC | 1,084 | $353.5K | 0.00% | +126+13.2% | Added |
| Coastal Bridge Advisors, LLC | 1,072 | $349.6K | 0.03% | +1,072 | New |
| Capital Group Private Client Services, Inc. | 1,070 | $348.9K | 0.00% | −786−42.3% | Reduced |
| Crossmark Global Holdings, Inc. | 1,044 | $340.4K | 0.01% | +26+2.6% | Added |
| Nichols & Pratt Advisers LLP | 1,043 | $340.1K | 0.02% | 00.0% | Unchanged |
| Beacon Pointe Advisors, LLC | 1,036 | $337.8K | 0.00% | +169+19.5% | Added |
| Brighton Jones LLC | 1,032 | $336.5K | 0.01% | −177−14.6% | Reduced |
| Breakwater Capital Group | 1,027 | $334.9K | 0.05% | −2−0.2% | Reduced |
| Greenland Capital Management LP | 1,000 | $326.1K | 0.04% | 00.0% | Unchanged |
| Westmount Partners, LLC | 1,000 | $326.1K | 0.09% | 00.0% | Unchanged |
| Livforsakringsbolaget Skandia, Omsesidigt | 1,000 | $325.4K | 0.01% | 00.0% | Unchanged |
| Jupiter Asset Management Ltd | 974 | $317.6K | 0.00% | −13,636−93.3% | Reduced |
| Sym Financial Corp | 944 | $307.8K | 0.03% | −70−6.9% | Reduced |
| Eqis Capital Management, Inc. | 934 | $304.6K | 0.02% | −94−9.1% | Reduced |
| HCR Wealth Advisors | 924 | $301.3K | 0.04% | 00.0% | Unchanged |
| Sagespring Wealth Partners, LLC | 916 | $298.8K | 0.01% | +916 | New |
| Hilltop Holdings Inc. | 916 | $298.7K | 0.02% | +916 | New |
| National Bank of Canada | 903 | $294.4K | 0.00% | +240+36.2% | Added |
| Nebula Research & Development LLC | 900 | $293.5K | 0.02% | +900 | New |
| Humankind Investments LLC | 896 | $292.2K | 0.07% | +896 | New |
| Proficio Capital Partners LLC | 882 | $287.6K | 0.02% | +74+9.2% | Added |
| Poinciana Advisors Group, LLC | 870 | $283.7K | 0.26% | +19+2.2% | Added |
| HB Wealth Management, LLC | 869 | $283.6K | 0.00% | +98+12.7% | Added |
| Howard Capital Management Inc. | 830 | $270.7K | 0.00% | +830 | New |
| Chapin Davis, Inc. | 825 | $269.0K | 0.07% | 00.0% | Unchanged |
| West Family Investments, Inc. | 822 | $268.0K | 0.07% | +822 | New |
| Point72 Asia (Singapore) Pte. Ltd. | 818 | $266.6K | 0.05% | −14,188−94.5% | Reduced |
| Parallel Advisors, LLC | 817 | $266.4K | 0.01% | −45−5.2% | Reduced |
| Buckingham Strategic Partners | 810 | $263.3K | 0.00% | −1,914−70.3% | Reduced |
| ICONIQ Capital, LLC | 806 | $262.8K | 0.00% | +806 | New |
| Meridian Financial, LLC | 800 | $260.9K | 0.17% | 00.0% | Unchanged |
| Ellevest, Inc. | 792 | $258.3K | 0.04% | +19+2.5% | Added |
| Essex LLC | 788 | $257.0K | 0.05% | 00.0% | Unchanged |
| Compass Capital Corp | 800 | $254.4K | 0.12% | 00.0% | Unchanged |
| Alta Advisers Ltd | 757 | $246.8K | 0.09% | 00.0% | Unchanged |
| Strategic Financial Concepts, LLC | 750 | $244.6K | 0.03% | −2−0.3% | Reduced |
| GTS Securities LLC | 747 | $243.6K | 0.01% | +747 | New |
| Ascent Group, LLC | 746 | $243.3K | 0.01% | −3−0.4% | Reduced |
| Flow Traders U.S. LLC | 740 | $241.0K | 0.01% | +740 | New |
| Perfromance Wealth Partners, LLC | 735 | $239.7K | 0.01% | +735 | New |
| GAMMA Investing LLC | 726 | $236.7K | 0.01% | +110+17.9% | Added |
| EP Wealth Advisors, LLC | 713 | $232.5K | 0.00% | −285−28.6% | Reduced |
| Fidelis Capital Partners, LLC | 536 | $229.5K | 0.02% | +536 | New |
| GWM Advisors LLC | 704 | $229.4K | 0.00% | +703+70,300.0% | Added |
| Allworth Financial LP | 691 | $225.2K | 0.00% | +73+11.8% | Added |
| Stonegate Investment Group, LLC | 684 | $223.0K | 0.01% | +684 | New |
| Fiduciary Trust Co | 673 | $219.5K | 0.00% | +673 | New |
| Ariadne Wealth Management, LP | 506 | $218.9K | 0.10% | +506 | New |
| Atomi Financial Group, Inc. | 667 | $217.5K | 0.01% | +667 | New |
| Fukoku Mutual Life Insurance Co | 659 | $214.9K | 0.01% | −255−27.9% | Reduced |
| Zions Bancorporation, National Association | 646 | $210.7K | 0.01% | 00.0% | Unchanged |
| Independent Financial Group, LLC | 635 | $207.1K | 0.01% | −255−28.7% | Reduced |
| Stephens Inc | 635 | $207.1K | 0.00% | +635 | New |