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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 2023

Institutional positions in Alnylam Pharmaceuticals, Inc. as of Sep 30, 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
454
−15 vs. Q2 2023
Shares held
117.8M
+10.8K (0.0%) vs. Q2 2023
Total value
$20.9B
−$1.52B (−6.8%) vs. Q2 2023
New holders
43
161 more added
Sold out
58
165 more reduced

8 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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.

Institutional holdersQ3 2023: 454 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 2023: $20.9B
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 2023

Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q2 2023.

Institutions holding ALNY in Q3 2023
InstitutionSharesValue% of portfolioChange in sharesAction
HRT Financial LP2,090$370.0K0.00%+2,090New
Nebula Research & Development LLC2,089$370.0K0.20%+2,089New
Banque Cantonale Vaudoise2,058$365.0K0.02%−2,842−58.0%Reduced
Farallon Capital Management, L.L.C.2,000$354.2K0.00%00.0%Unchanged
Security National Bank of So Dak2,000$354.2K0.26%00.0%Unchanged
Aquila Investment Management LLC2,000$354.2K0.33%00.0%Unchanged
Ossiam1,987$351.9K0.01%+367+22.7%Added
American International Group, Inc.1,934$342.5K0.00%−132−6.4%Reduced
Bridgewater Associates, LP1,886$334.0K0.00%+90+5.0%Added
JGP Global Gestao de Recursos Ltda.1,856$328.7K0.21%−20−1.1%Reduced
Cohen Lawrence B1,800$318.8K0.22%00.0%Unchanged
DCF Advisers, LLC1,800$318.8K0.22%+200+12.5%Added
Pictet & Cie (Europe) SA1,790$317.0K0.01%−23−1.3%Reduced
Fund Management at Engine No. 1 LLC1,789$316.8K0.05%+167+10.3%Added
Vident Advisory, LLC1,745$309.0K0.01%+1,745New
Loring Wolcott & Coolidge Fiduciary Advisors LLP1,905$307.7K0.00%−60−3.1%Reduced
BI Asset Management Fondsmaeglerselskab A/S1,693$300.0K0.01%−516−23.4%Reduced
Beacon Pointe Advisors, LLC1,691$299.5K0.00%+111+7.0%Added
Mutual of America Capital Management LLC1,687$298.6K0.00%00.0%Unchanged
Advisor Partners II, LLC1,646$291.5K0.01%+338+25.8%Added
Bleakley Financial Group, LLC1,622$287.3K0.01%−234−12.6%Reduced
Sawtooth Solutions, LLC1,622$287.3K0.01%−225−12.2%Reduced
Altfest L J & Co Inc1,598$283.0K0.04%+489+44.1%Added
O'Shaughnessy Asset Management, LLC1,594$282.3K0.00%+258+19.3%Added
Ieq Capital, LLC1,540$272.7K0.01%+41+2.7%Added
Virtus ETF Advisers LLC1,533$271.5K0.16%−198−11.4%Reduced
Clearstead Advisors, LLC1,518$268.8K0.02%00.0%Unchanged
North Star Asset Management Inc1,515$268.3K0.02%00.0%Unchanged
Nixon Peabody Trust Co1,500$265.6K0.22%00.0%Unchanged
High Net Worth Advisory Group LLC1,500$265.6K0.11%00.0%Unchanged
Cutler Group LP1,500$265.0K0.04%+1,500New
Empowered Funds, LLC1,452$257.1K0.01%+134+10.2%Added
Yousif Capital Management, LLC1,446$256.1K0.00%+40+2.8%Added
Great Lakes Advisors, LLC1,445$255.9K0.00%−73−4.8%Reduced
Graham Capital Management, L.P.1,427$252.7K0.01%−342−19.3%Reduced
Abbrea Capital, LLC1,425$252.0K0.04%00.0%Unchanged
Ellevest, Inc.1,416$250.8K0.02%+56+4.1%Added
Cetera Advisor Networks LLC1,405$248.8K0.00%−77−5.2%Reduced
Verition Fund Management LLC1,391$246.3K0.00%+1,391New
Meiji Yasuda Asset Management Co Ltd.1,380$244.4K0.01%+160+13.1%Added
Corton Capital Inc.1,338$237.0K0.12%−1,553−53.7%Reduced
Symmetry Partners, LLC1,331$236.0K0.01%00.0%Unchanged
Cigna Investments Inc1,322$235.0K0.05%00.0%Unchanged
Wetherby Asset Management Inc1,297$229.7K0.01%−256−16.5%Reduced
Advisors Asset Management, Inc.1,292$228.8K0.00%+375+40.9%Added
Envestnet Portfolio Solutions, Inc.1,279$226.5K0.00%+1,279New
Pathstone Family Office, LLC1,240$219.6K0.00%+1,240New
MQS Management LLC1,225$216.9K0.13%+1,225New
Coastline Trust Co1,200$212.5K0.03%00.0%Unchanged
EP Wealth Advisors, LLC1,177$208.5K0.00%+71+6.4%Added
Signaturefd, LLC1,175$208.1K0.01%−493−29.6%Reduced
Peregrine Capital Management LLC1,147$203.1K0.01%00.0%Unchanged
Headlands Technologies LLC1,146$203.0K0.10%−1,518−57.0%Reduced
Humankind Investments LLC1,142$202.2K0.08%+29+2.6%Added
Qube Research & Technologies Ltd1,000$177.1K0.00%+1,000New
Liontrust Investment Partners LLP967$171.3K0.00%−10,256−91.4%Reduced
Westpac Banking Corp946$167.5K0.01%00.0%Unchanged
Artal Group S.A.936$166.0K0.01%00.0%Unchanged
Acadian Asset Management LLC904$160.0K0.00%+311+52.4%Added
UniSuper Management Pty Ltd900$159.4K0.00%00.0%Unchanged
TD Waterhouse Canada Inc.840$154.0K0.00%−50−5.6%Reduced
Brown Brothers Harriman & Co642$113.7K0.00%+615+2,277.8%Added
Itau Unibanco Holding S.A.608$107.7K0.00%−2−0.3%Reduced
Leonteq Securities AG583$103.2K0.01%−128−18.0%Reduced
Spire Wealth Management580$102.7K0.00%−1−0.2%Reduced
1832 Asset Management L.P.545$96.5K0.00%00.0%Unchanged
Baystate Wealth Management LLC527$93.3K0.01%00.0%Unchanged
National Bank of Canada485$86.7K0.00%−2,781−85.2%Reduced
Northwestern Mutual Wealth Management Co480$85.0K0.00%+45+10.3%Added
Bessemer Group Inc476$84.0K0.00%+105+28.3%Added
Desjardins Global Asset Management Inc.458$81.1K0.01%+458New
Ostrum Asset Management455$80.6K0.01%−4−0.9%Reduced
IFP Advisors, Inc454$80.3K0.00%+1+0.2%Added
Centiva Capital, LP421$74.6K0.00%+421New
Steward Partners Investment Advisory, LLC420$74.4K0.00%+15+3.7%Added
Alta Advisers Ltd400$70.8K0.04%00.0%Unchanged
Prestige Wealth Management Group LLC314$55.6K0.01%+304+3,040.0%Added
Quadrant Capital Group LLC275$48.7K0.00%+23+9.1%Added
Lindbrook Capital, LLC269$47.6K0.01%+22+8.9%Added
Allworth Financial LP261$46.2K0.00%+42+19.2%Added
Parallel Advisors, LLC227$40.2K0.00%+18+8.6%Added
KB Financial Partners, LLC205$36.0K0.01%+31+17.8%Added
Livforsakringsbolaget Skandia, Omsesidigt200$35.4K0.00%00.0%Unchanged
Anchor Investment Management, LLC200$35.4K0.00%00.0%Unchanged
Archer Investment Corp200$35.4K0.01%00.0%Unchanged
CKW Financial Group200$35.0K0.01%00.0%Unchanged
Capital Advisors, Ltd. LLC173$31.0K0.00%+15+9.5%Added
Glassman Wealth Services136$24.1K0.00%−5−3.5%Reduced
Brown, Lisle/Cummings, Inc.125$22.1K0.01%00.0%Unchanged
Global Trust Asset Management, LLC122$21.6K0.01%00.0%Unchanged
Gradient Investments LLC114$20.2K0.00%−2−1.7%Reduced
Ronald Blue Trust, Inc.101$19.0K0.00%+10+11.0%Added
Cape Investment Advisory, Inc.93$16.5K0.01%00.0%Unchanged
First Horizon Advisors, Inc.88$15.6K0.00%−7−7.4%Reduced
Global Retirement Partners, LLC90$15.2K0.00%+5+5.9%Added
Sandy Spring Bank75$13.3K0.00%00.0%Unchanged
Valley National Advisers Inc76$13.0K0.00%+1+1.3%Added
Central Trust Co67$11.9K0.00%00.0%Unchanged
Paloma Partners Management Co64$11.3K0.00%+64New
Covestor Ltd64$11.0K0.01%−3−4.5%Reduced