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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 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.

Institutional holdersQ4 2021: 435 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 2021: $19.0B
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 2021

Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q3 2021.

Institutions holding ALNY in Q4 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Two Sigma Securities, LLC2,125$360.0K0.07%+2,125New
Loring Wolcott & Coolidge Fiduciary Advisors LLP2,025$343.0K0.00%00.0%Unchanged
North Star Asset Management Inc2,020$343.0K0.02%00.0%Unchanged
Foundations Investment Advisors, LLC2,311$341.0K0.01%+237+11.4%Added
Virtus ETF Advisers LLC2,003$340.0K0.13%−742−27.0%Reduced
Segall Bryant & Hamill, LLC2,000$339.0K0.00%00.0%Unchanged
Pensionfund DSM Netherlands2,000$339.0K0.04%00.0%Unchanged
Engineers Gate Manager LP1,990$337.0K0.02%+856+75.5%Added
IndexIQ Advisors LLC1,986$337.0K0.01%+1,986New
IBM Retirement Fund1,977$335.0K0.04%−1,356−40.7%Reduced
Livforsakringsbolaget Skandia, Omsesidigt1,900$322.0K0.02%00.0%Unchanged
Parallax Volatility Advisers, L.P.1,805$306.0K0.00%−605−25.1%Reduced
Cohen Lawrence B1,800$305.0K0.12%00.0%Unchanged
MUFG Americas Holdings Corp1,755$298.0K0.01%+89+5.3%Added
Boston Private Wealth LLC1,753$297.0K0.00%−62−3.4%Reduced
Geneos Wealth Management Inc.1,723$292.0K0.01%+37+2.2%Added
Creative Planning1,716$291.0K0.00%+248+16.9%Added
Yousif Capital Management, LLC1,681$285.0K0.00%+1,681New
NinePointTwo Capital1,672$283.0K0.09%+1,672New
Essex Savings Bank1,652$280.0K0.09%00.0%Unchanged
ProVise Management Group, LLC1,628$276.0K0.03%+30+1.9%Added
Fukoku Mutual Life Insurance Co1,580$268.0K0.02%+50+3.3%Added
National Asset Management, Inc.1,575$268.0K0.01%+1,575New
Abbrea Capital, LLC1,575$267.0K0.04%00.0%Unchanged
Tokio Marine Asset Management Co Ltd1,540$261.0K0.02%−7−0.5%Reduced
Security National Bank of So Dak1,500$254.0K0.17%00.0%Unchanged
Nixon Peabody Trust Co1,500$254.0K0.08%00.0%Unchanged
Vestcor Inc1,467$249.0K0.01%−271−15.6%Reduced
Bank of Nova Scotia1,464$249.0K0.00%+1,464New
Meiji Yasuda Asset Management Co Ltd.1,400$237.0K0.01%+160+12.9%Added
Peregrine Capital Management LLC1,380$234.0K0.00%00.0%Unchanged
Beacon Pointe Advisors, LLC1,345$228.0K0.01%−205−13.2%Reduced
Symmetry Partners, LLC1,331$226.0K0.01%00.0%Unchanged
Wealthfront Advisers LLC1,319$224.0K0.00%+1,319New
Wetherby Asset Management Inc1,310$222.0K0.01%+48+3.8%Added
JGP Global Gestao de Recursos Ltda.1,302$221.0K0.10%−2−0.2%Reduced
STRS Ohio1,291$218.0K0.00%00.0%Unchanged
Kestra Advisory Services, LLC1,265$215.0K0.00%−1,435−53.1%Reduced
BNP PARIBAS ASSET MANAGEMENT Holding S.A.1,258$213.0K0.00%−56,992−97.8%Reduced
Cetera Investment Advisers1,217$206.0K0.00%+1,217New
Ikarian Capital, LLC1,195$204.0K0.06%−266−18.2%Reduced
Coastline Trust Co1,200$203.0K0.02%00.0%Unchanged
Baird Financial Group, Inc.1,194$202.0K0.00%+25+2.1%Added
Atlantic Trust, LLC1,123$190.0K0.11%00.0%Unchanged
Baystate Wealth Management LLC1,055$179.0K0.02%00.0%Unchanged
Itau Unibanco Holding S.A.996$170.0K0.01%+250+33.5%Added
High Net Worth Advisory Group LLC1,000$170.0K0.06%+1,000New
Semmax Financial Advisors Inc.993$168.0K0.06%−189−16.0%Reduced
Ellevest, Inc.945$160.0K0.01%−126−11.8%Reduced
Signaturefd, LLC923$157.0K0.00%−29−3.0%Reduced
Captrust Financial Advisors903$153.0K0.00%+50+5.9%Added
Harvest Fund Management Co., Ltd874$148.0K0.03%00.0%Unchanged
Leonteq Securities AG766$129.9K0.01%−1,012−56.9%Reduced
Steward Partners Investment Advisory, LLC754$128.0K0.00%00.0%Unchanged
Lazard Asset Management LLC723$122.0K0.00%−1,037−58.9%Reduced
Centaurus Financial, Inc.700$119.0K0.01%00.0%Unchanged
Ci Investments Inc.643$109.0K0.00%+126+24.4%Added
Prestige Wealth Management Group LLC624$105.0K0.03%+580+1,318.2%Added
Northwestern Mutual Wealth Management Co601$102.0K0.00%00.0%Unchanged
GraniteShares Advisors LLC595$100.0K0.05%+595New
Spire Wealth Management468$81.0K0.00%+9+2.0%Added
IFP Advisors, Inc377$73.0K0.00%+7+1.9%Added
United Community Bank365$61.9K0.06%+365New
Quadrant Capital Group LLC352$60.0K0.01%−52−12.9%Reduced
Parallel Advisors, LLC266$45.0K0.00%−84−24.0%Reduced
Koshinski Asset Management, Inc.235$39.9K0.00%00.0%Unchanged
HM Payson & Co218$37.0K0.00%+218New
KB Financial Partners, LLC198$34.0K0.01%−1,057−84.2%Reduced
Vigilant Capital Management, LLC200$34.0K0.00%00.0%Unchanged
Anchor Investment Management, LLC200$33.9K0.00%00.0%Unchanged
KRS Capital Management, LLC200$33.0K0.03%+200New
Patriot Financial Group Insurance Agency, LLC180$31.0K0.01%−113−38.6%Reduced
Achmea Investment Management B.V.184$31.0K0.00%00.0%Unchanged
Lindbrook Capital, LLC183$31.0K0.00%−3−1.6%Reduced
CKW Financial Group200$30.0K0.00%00.0%Unchanged
FSB Premier Wealth Management, Inc.178$30.0K0.01%+178New
Atlas Capital Advisors LLC165$28.0K0.00%00.0%Unchanged
Glassman Wealth Services150$25.0K0.00%+13+9.5%Added
Global Trust Asset Management, LLC122$21.0K0.01%−13−9.6%Reduced
TFC Financial Management125$21.0K0.01%00.0%Unchanged
Optiver Holding B.V.124$21.0K0.00%+124New
Concord Wealth Partners119$20.0K0.00%+38+46.9%Added
Gradient Investments LLC110$19.0K0.00%00.0%Unchanged
Lumature Wealth Partners, LLC100$17.0K0.01%−50−33.3%Reduced
State of Wyoming94$16.0K0.01%−47−33.3%Reduced
Huntington National Bank81$14.0K0.00%−5−5.8%Reduced
Proequities, Inc.72$12.0K0.00%+30+71.4%Added
Central Trust Co67$11.0K0.00%00.0%Unchanged
Earnest Partners LLC61$10.0K0.00%00.0%Unchanged
First Horizon Advisors, Inc.69$10.0K0.00%+13+23.2%Added
Allworth Financial LP61$10.0K0.00%+61New
Covestor Ltd56$10.0K0.01%+56New
Motley Fool Asset Management LLC56$9.00K0.00%+56New
Dark Forest Capital Management LP55$9.00K0.00%+55New
Peoples Financial Services Corp.50$8.00K0.00%00.0%Unchanged
St. Johns Investment Management Company, LLC50$8.00K0.00%00.0%Unchanged
Monolith Advisors49$8.00K0.01%+49New
Robeco Institutional Asset Management B.V.39$7.00K0.00%+39New
Standard Family Office LLC40$7.00K0.06%+40New
Whittier Trust Co36$6.00K0.00%00.0%Unchanged