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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, Q3 2025

Institutional positions in Alnylam Pharmaceuticals, Inc. as of Sep 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
823
+178 vs. Q2 2025
Shares held
129.9M
−193.8K (−0.1%) vs. Q2 2025
Total value
$59.2B
+$16.8B (+39.6%) vs. Q2 2025
New holders
225
283 more added
Sold out
47
223 more reduced

8 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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.

Institutional holdersQ3 2025: 823 institutions
Q1 2021: 391 institutionsQ2 2021: 401 institutionsQ3 2021: 407 institutionsQ4 2021: 435 institutionsQ1 2022: 443 institutionsQ2 2022: 424 institutionsQ3 2022: 497 institutionsQ4 2022: 489 institutionsQ1 2023: 478 institutionsQ2 2023: 477 institutionsQ3 2023: 454 institutionsQ4 2023: 501 institutionsQ1 2024: 499 institutionsQ2 2024: 525 institutionsQ3 2024: 569 institutionsQ4 2024: 594 institutionsQ1 2025: 625 institutionsQ2 2025: 653 institutionsQ3 2025: 823 institutionsQ4 2025: 852 institutionsQ1 2026: 793 institutionsQ2 2026: 794 institutions
Value heldQ3 2025: $59.2B
Q1 2021: $15.4BQ2 2021: $19.0BQ3 2021: $21.1BQ4 2021: $19.0BQ1 2022: $18.6BQ2 2022: $16.6BQ3 2022: $26.7BQ4 2022: $28.4BQ1 2023: $24.0BQ2 2023: $22.5BQ3 2023: $20.9BQ4 2023: $22.4BQ1 2024: $17.2BQ2 2024: $29.1BQ3 2024: $34.1BQ4 2024: $30.1BQ1 2025: $34.8BQ2 2025: $43.1BQ3 2025: $59.2BQ4 2025: $52.7BQ1 2026: $43.4BQ2 2026: $40.1B
Institutions holding ALNY and their total value by quarter
QuarterHoldersValue
Q2 2026794$40.1B
Q1 2026793$43.4B
Q4 2025852$52.7B
Q3 2025823$59.2B
Q2 2025653$43.1B
Q1 2025625$34.8B
Q4 2024594$30.1B
Q3 2024569$34.1B
Q2 2024525$29.1B
Q1 2024499$17.2B
Q4 2023501$22.4B
Q3 2023454$20.9B
Q2 2023477$22.5B
Q1 2023478$24.0B
Q4 2022489$28.4B
Q3 2022497$26.7B
Q2 2022424$16.6B
Q1 2022443$18.6B
Q4 2021435$19.0B
Q3 2021407$21.1B
Q2 2021401$19.0B
Q1 2021391$15.4B

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q2 2025.

Institutions holding ALNY in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Fi3 FINANCIAL ADVISORS, LLC541$246.7K0.08%+541New
First Affirmative Financial Network542$247.0K0.12%+542New
Essex LLC547$249.4K0.05%−241−30.6%Reduced
Cookson Peirce & Co Inc547$249.4K0.01%+547New
Fukoku Mutual Life Insurance Co551$251.3K0.02%−108−16.4%Reduced
Quadrant Capital Group LLC553$252.2K0.01%+553New
Stevens Capital Management LP565$258.0K0.03%+565New
Northwestern Mutual Wealth Management Co567$258.6K0.00%+71+14.3%Added
Fourth Dimension Wealth, LLC573$261.3K0.10%−16−2.7%Reduced
Private Trust Co NA575$262.2K0.02%+543+1,696.9%Added
AlTi Global, Inc.576$262.7K0.01%+576New
Everpar Advisors LLC583$265.8K0.11%+583New
Beacon Investment Advisory Services, Inc.585$266.8K0.01%−705−54.7%Reduced
Charter Research & Investment Group, Inc.585$266.8K0.18%+585New
Capital Performance Advisors LLP588$268.1K0.04%+588New
LVW Advisors, LLC590$269.0K0.03%+590New
Cooper Financial Group597$272.2K0.03%+597New
Point72 Hong Kong Ltd598$272.7K0.01%+598New
Humankind Investments LLC600$273.6K0.06%−296−33.0%Reduced
Evercore Wealth Management, LLC600$273.6K0.00%+600New
Consolidated Portfolio Review Corp601$274.1K0.03%+601New
Blueshift Asset Management, LLC603$275.0K0.08%+603New
Covenant Partners, LLC604$275.4K0.08%+604New
QTR Family Wealth, LLC609$277.7K0.13%+609New
L2 Asset Management, LLC611$278.6K0.04%+611New
Bradley Foster & Sargent Inc620$282.7K0.00%+620New
waypoint wealth counsel621$283.2K0.11%+621New
Ascent Group, LLC624$284.3K0.01%−122−16.4%Reduced
Moran Wealth Management, LLC625$285.0K0.01%+625New
Cascade Financial Partners, LLC627$285.9K0.03%00.0%Unchanged
Waterloo Capital, L.P.630$287.3K0.02%+630New
Independent Financial Group, LLC632$288.2K0.01%−3−0.5%Reduced
Plante Moran Financial Advisors, LLC637$290.5K0.02%−648−50.4%Reduced
Sowell Financial Services LLC654$298.2K0.01%+38+6.2%Added
Pinebridge Investments, L.P.657$299.6K0.00%+657New
Lido Advisors, LLC658$300.4K0.00%+658New
Retireful, LLC662$301.9K0.29%+662New
Dynasty Wealth Management, LLC668$304.6K0.00%+668New
Fiduciary Trust Co673$307.1K0.00%00.0%Unchanged
Sym Financial Corp675$307.8K0.03%−269−28.5%Reduced
Independent Advisor Alliance679$309.6K0.01%+679New
Polen Capital Management LLC693$316.0K0.00%+693New
Legacy Wealth Asset Management, LLC694$316.5K0.08%+694New
Stephens Inc699$318.7K0.00%+64+10.1%Added
Ariadne Wealth Management, LP703$319.1K0.14%+197+38.9%Added
We Are One Seven, LLC700$319.2K0.01%+700New
HighPoint Advisor Group LLC704$321.0K0.02%+704New
Kera Capital Partners, Inc.706$321.9K0.05%+706New
Savvy Advisors, Inc.710$323.8K0.01%+710New
Essex Financial Services, Inc.714$325.4K0.02%+714New
Perfromance Wealth Partners, LLC725$330.6K0.01%−10−1.4%Reduced
Farther Finance Advisors, LLC728$331.8K0.01%+349+92.1%Added
Resources Investment Advisors, LLC.730$332.7K0.00%−387−34.6%Reduced
Draper Asset Management, LLC742$338.4K0.20%+742New
Portside Wealth Group, LLC751$342.5K0.05%+751New
Baader Bank INC760$343.4K0.03%+760New
Alta Advisers Ltd757$345.2K0.11%00.0%Unchanged
Clearstead Advisors, LLC764$348.4K0.01%−359−32.0%Reduced
Ellevest, Inc.774$352.9K0.05%−18−2.3%Reduced
Simplify Asset Management Inc.774$352.9K0.01%+774New
Compass Capital Corp800$353.4K0.15%00.0%Unchanged
Requisite Capital Management, LLC776$353.9K0.06%+776New
Parcion Private Wealth LLC789$359.8K0.02%+789New
Bridges Investment Management Inc794$362.1K0.00%+794New
Weiss Asset Management LP795$362.5K0.01%+795New
Parallel Advisors, LLC796$363.3K0.01%−21−2.6%Reduced
PKO Investment Management Joint-Stock Co800$364.8K0.03%+800New
Point72 Europe (London) LLP807$367.8K0.02%−19,127−96.0%Reduced
Polymer Capital Management (US) LLC808$368.4K0.05%+808New
West Family Investments, Inc.822$374.8K0.08%00.0%Unchanged
GAMMA Investing LLC823$375.3K0.02%+97+13.4%Added
Chapin Davis, Inc.825$376.2K0.09%00.0%Unchanged
Meridian Financial, LLC828$377.6K0.21%+28+3.5%Added
Peregrine Capital Management LLC832$379.4K0.01%−315−27.5%Reduced
XTX Topco Ltd834$380.3K0.02%+834New
CAPROCK Group, Inc.857$382.7K0.01%+857New
SkyOak Wealth, LLC847$386.2K0.07%+847New
Howard Capital Management Inc.854$389.4K0.01%+24+2.9%Added
Poinciana Advisors Group, LLC857$390.8K0.33%−13−1.5%Reduced
Warren Averett Asset Management, LLC865$394.4K0.00%+865New
Snowden Capital Advisors LLC867$395.4K0.01%−269−23.7%Reduced
Savant Capital, LLC883$402.6K0.00%+883New
Evoke Wealth, LLC896$408.6K0.01%+896New
Transcend Wealth Collective, LLC899$409.9K0.03%+899New
Jackson Thornton Asset Management, LLC918$413.7K0.04%+918New
HCR Wealth Advisors924$426.0K0.04%00.0%Unchanged
Atomi Financial Group, Inc.942$429.7K0.01%+275+41.2%Added
Beacon Pointe Advisors, LLC954$434.9K0.00%−82−7.9%Reduced
National Bank of Canada957$436.4K0.00%+54+6.0%Added
Nwam LLC912$448.0K0.02%00.0%Unchanged
Yeomans Consulting Group, Inc.984$453.3K0.16%+984New
Livforsakringsbolaget Skandia, Omsesidigt1,000$455.4K0.02%00.0%Unchanged
Westmount Partners, LLC1,000$460.6K0.12%00.0%Unchanged
Chicago Partners Investment Group LLC972$462.6K0.01%+972New
Full Sail Capital, LLC1,015$462.8K0.03%+1,015New
Virtue Capital Management, LLC4,121$463.6K0.10%+4,121New
Waddell & Associates, LLC1,018$464.2K0.04%+1,018New
SIH Partners, LLLP1,020$465.1K0.04%+1,020New
Vise Technologies, Inc.1,024$467.1K0.02%−310−23.2%Reduced
Breakwater Capital Group1,027$468.3K0.07%00.0%Unchanged