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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, Q4 2024

Institutional positions in Alnylam Pharmaceuticals, Inc. as of Dec 31, 2024. 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
594
+35 vs. Q3 2024
Shares held
127.8M
+4.29M (+3.5%) vs. Q3 2024
Total value
$30.1B
−$3.90B (−11.5%) vs. Q3 2024
New holders
98
239 more added
Sold out
63
180 more reduced

10 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2024: 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 holdersQ4 2024: 594 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 heldQ4 2024: $30.1B
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, Q4 2024

Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q3 2024.

Institutions holding ALNY in Q4 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Virtus ETF Advisers LLC1,426$335.6K0.14%−632−30.7%Reduced
Ellevest, Inc.1,424$335.1K0.02%−450−24.0%Reduced
Flow Traders U.S. LLC1,392$328.0K0.01%+1,392New
Bannerman Wealth Management Group, LLC1,391$327.3K0.27%+1,391New
Yarbrough Capital, LLC1,376$323.8K0.01%00.0%Unchanged
Nichols & Pratt Advisers LLP1,375$323.6K0.02%00.0%Unchanged
Siemens Fonds Invest GmbH1,365$322.2K0.03%00.0%Unchanged
Park Avenue Securities LLC1,368$322.0K0.00%+538+64.8%Added
Fulton Bank, N.A.1,343$316.0K0.01%+301+28.9%Added
Brevan Howard Capital Management LP1,333$313.7K0.01%+44+3.4%Added
Vident Advisory, LLC1,327$312.3K0.01%+232+21.2%Added
North Star Asset Management Inc1,310$308.3K0.01%00.0%Unchanged
Cigna Investments Inc1,297$305.0K0.05%00.0%Unchanged
Summit Trail Advisors, LLC1,285$302.4K0.01%+151+13.3%Added
Marex Group plc1,268$298.4K0.01%+1,268New
Crowley Wealth Management, Inc.1,250$294.1K0.26%+1,250New
Ariadne Wealth Management, LP1,042$285.6K0.13%+187+21.9%Added
Abn Amro Investment Solutions1,211$285.0K0.01%−183−13.1%Reduced
Principal Securities, Inc.1,187$279.3K0.01%+1,066+881.0%Added
Eqis Capital Management, Inc.1,169$275.0K0.02%+10+0.9%Added
GTS Securities LLC1,163$273.7K0.01%−7,040−85.8%Reduced
Wetherby Asset Management Inc1,147$269.9K0.01%−204−15.1%Reduced
Peregrine Capital Management LLC1,147$269.9K0.01%00.0%Unchanged
Kazazian Asset Management, LLC1,140$268.3K0.21%+1,140New
Two Sigma Securities, LLC1,117$262.8K0.05%+1,117New
Coldstream Capital Management Inc1,113$261.8K0.01%−98−8.1%Reduced
Clearstead Advisors, LLC1,110$261.2K0.00%00.0%Unchanged
American Trust1,105$260.0K0.02%−18−1.6%Reduced
Resources Investment Advisors, LLC.1,046$246.1K0.00%+25+2.4%Added
Chicago Partners Investment Group LLC1,022$245.8K0.01%+1,022New
Callan Family Office, LLC1,042$245.2K0.02%+1,042New
Brighton Jones LLC1,032$242.8K0.01%+1,032New
Breakwater Capital Group1,029$242.1K0.05%−1−0.1%Reduced
Empirical Asset Management, LLC51,614$240.5K0.08%+51,614New
Central Pacific Bank - Trust Division1,005$236.5K0.03%−20−2.0%Reduced
Towarzystwo Funduszy Inwestycyjnych Pzu SA1,002$235.8K0.08%−198−16.5%Reduced
Westmount Partners, LLC1,000$235.3K0.07%00.0%Unchanged
Livforsakringsbolaget Skandia, Omsesidigt1,000$235.3K0.01%00.0%Unchanged
Sara-Bay Financial985$232.5K0.09%+235+31.3%Added
QRG Capital Management, Inc.985$231.8K0.00%+180+22.4%Added
GWM Advisors LLC973$228.9K0.00%+972+97,200.0%Added
Allegiance Financial Group Advisory Services LLC969$228.0K0.07%+969New
TownSquare Capital, LLC966$227.4K0.00%+966New
Chapin Davis, Inc.825$226.9K0.07%00.0%Unchanged
Sym Financial Corp963$226.6K0.03%+16+1.7%Added
Dai-Ichi Life Insurance Company, Ltd955$224.7K0.01%00.0%Unchanged
Corton Capital Inc.946$222.6K0.13%+946New
Steward Partners Investment Advisory, LLC940$221.2K0.00%+40+4.4%Added
Beacon Pointe Advisors, LLC935$220.0K0.00%−440−32.0%Reduced
HCR Wealth Advisors924$217.4K0.03%00.0%Unchanged
Fukoku Mutual Life Insurance Co914$215.1K0.02%00.0%Unchanged
Meeder Advisory Services, Inc.906$213.2K0.01%−27−2.9%Reduced
Nwam LLC906$213.2K0.01%+50+5.8%Added
Independent Financial Group, LLC905$213.0K0.01%+905New
Meridian Financial, LLC900$211.8K0.15%00.0%Unchanged
Compass Capital Corp800$210.4K0.08%+800New
Capital Performance Advisors LLP877$206.4K0.07%+437+99.3%Added
Ronald Blue Trust, Inc.865$203.5K0.00%+403+87.2%Added
Buckingham Strategic Partners862$203.0K0.00%+862New
Poinciana Advisors Group, LLC861$202.6K0.21%+861New
Parallel Advisors, LLC831$195.5K0.00%+292+54.2%Added
Smartleaf Asset Management LLC747$176.3K0.02%+306+69.4%Added
Allworth Financial LP597$159.1K0.00%+38+6.8%Added
Zions Bancorporation, N.A.672$158.1K0.01%+80+13.5%Added
National Bank of Canada668$157.3K0.00%+55+9.0%Added
Plante Moran Financial Advisors, LLC635$149.4K0.01%00.0%Unchanged
Wolverine Asset Management LLC590$138.8K0.00%00.0%Unchanged
Lindbrook Capital, LLC546$128.5K0.01%−24−4.2%Reduced
GAMMA Investing LLC539$126.8K0.01%−15−2.7%Reduced
SRS Capital Advisors, Inc.481$113.2K0.01%−4−0.8%Reduced
Northwestern Mutual Wealth Management Co476$112.0K0.00%−47−9.0%Reduced
Covestor Ltd458$108.0K0.07%+1+0.2%Added
MAI Capital Management444$104.5K0.00%+444New
Skopos Labs, Inc.417$98.1K0.03%+4+1.0%Added
Ostrum Asset Management417$98.1K0.01%−3,986−90.5%Reduced
EverSource Wealth Advisors, LLC416$97.9K0.01%+93+28.8%Added
Bokf, NA381$90.7K0.00%+326+592.7%Added
V-Square Quantitative Management LLC370$87.1K0.01%+14+3.9%Added
Prestige Wealth Management Group LLC316$74.4K0.02%−135−29.9%Reduced
Edmond de Rothschild Holding S.A.269$63.3K0.00%+269New
Bayforest Capital Ltd267$62.8K0.08%+267New
Jones Financial Companies LLLP266$62.6K0.00%+266New
Venturi Wealth Management, LLC252$59.3K0.00%+248+6,200.0%Added
HM Payson & Co252$59.3K0.00%+252New
Evelyn Partners Investment Management LLP250$58.8K0.00%+250New
Quadrant Capital Group LLC246$57.9K0.00%−5−2.0%Reduced
Farther Finance Advisors, LLC241$56.8K0.00%+30+14.2%Added
IFP Advisors, Inc241$56.7K0.00%+47+24.2%Added
Spire Wealth Management205$48.3K0.00%−175−46.1%Reduced
Anchor Investment Management, LLC200$47.1K0.00%00.0%Unchanged
Concord Wealth Partners200$47.1K0.01%00.0%Unchanged
CKW Financial Group200$47.0K0.01%00.0%Unchanged
Versant Capital Management, Inc190$44.7K0.01%+83+77.6%Added
Itau Unibanco Holding S.A.171$40.2K0.00%−137−44.5%Reduced
Capital Advisors, Ltd. LLC162$38.0K0.00%00.0%Unchanged
True Wealth Design, LLC152$35.8K0.01%−2−1.3%Reduced
Coppell Advisory Solutions LLC150$35.4K0.01%+11+7.9%Added
Colonial Trust Co150$35.3K0.01%+150New
Ofi Invest Asset Management155$35.2K0.00%+155New
Carolinas Wealth Consulting LLC149$35.1K0.01%−10−6.3%Reduced