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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, Q1 2023

Institutional positions in Alnylam Pharmaceuticals, Inc. as of Mar 31, 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
478
0 vs. Q4 2022
Shares held
119.6M
+131.7K (+0.1%) vs. Q4 2022
Total value
$24.0B
−$4.42B (−15.6%) vs. Q4 2022
New holders
53
174 more added
Sold out
53
170 more reduced

11 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2022: 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 holdersQ1 2023: 478 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 heldQ1 2023: $24.0B
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, Q1 2023

Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q4 2022.

Institutions holding ALNY in Q1 2023
InstitutionSharesValue% of portfolioChange in sharesAction
The PNC Financial Services Group, Inc.15,608$3.13M0.00%+25+0.2%Added
Public Employees Retirement Association of Colorado15,690$3.14M0.02%00.0%Unchanged
Sabadell Asset Management, S.A S.G.I.I.C15,671$3.15M0.67%−534−3.3%Reduced
Karani Asset Management LLC15,716$3.15M3.33%+88+0.6%Added
Artia Global Partners LP15,971$3.20M1.29%00.0%Unchanged
Gulf International Bank (UK) Ltd16,261$3.26M0.07%−3,725−18.6%Reduced
CWM Advisors, LLC16,455$3.30M0.42%+1,631+11.0%Added
Xponance, Inc.16,838$3.37M0.05%+161+1.0%Added
Worldquant Millennium Advisors LLC18,338$3.67M0.07%+18,338New
Allianz Asset Management GmbH18,647$3.74M0.01%+294+1.6%Added
Mariner, LLC19,366$3.88M0.01%−6,298−24.5%Reduced
Capital Group Investment Management Pte. Ltd.19,468$3.90M0.21%−2,582−11.7%Reduced
Holocene Advisors, LP19,547$3.92M0.02%−579,381−96.7%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)19,946$4.00M0.02%+1,032+5.5%Added
Guggenheim Capital LLC19,986$4.00M0.03%−831−4.0%Reduced
Integral Health Asset Management, LLC20,000$4.01M0.83%−15,000−42.9%Reduced
Oregon Public Employees Retirement Fund20,228$4.05M0.05%+208+1.0%Added
Principal Financial Group Inc20,984$4.20M0.00%−2,979−12.4%Reduced
LMR Partners LLP21,144$4.24M0.09%+21,144New
Exchange Traded Concepts, LLC21,268$4.26M0.12%+13,900+188.7%Added
Aquatic Capital Management LLC21,300$4.27M0.26%+21,300New
Utah Retirement Systems21,825$4.37M0.06%+54+0.2%Added
1832 Asset Management L.P.22,745$4.56M0.01%−368,600−94.2%Reduced
DnB Asset Management AS23,318$4.67M0.03%+1,121+5.1%Added
Millennium Management LLC23,374$4.68M0.01%+23,374New
Standard Life Aberdeen plc23,454$4.70M0.01%+10,330+78.7%Added
IFM Investors Pty Ltd23,802$4.77M0.07%+381+1.6%Added
Mackenzie Financial Corp25,797$5.17M0.01%+580+2.3%Added
Forsta Ap-Fonden25,800$5.17M0.06%−2,800−9.8%Reduced
Tredje AP-fonden26,088$5.23M0.08%+1,824+7.5%Added
Sectoral Asset Management Inc26,570$5.32M1.02%+3,760+16.5%Added
Federation des caisses Desjardins du Quebec27,275$5.46M0.06%−6,424−19.1%Reduced
SEI Investments Co27,290$5.47M0.01%−342−1.2%Reduced
Sector Gamma AS27,389$5.49M1.33%+27,389New
Russell Investments Group, Ltd.28,098$5.53M0.01%−8,001−22.2%Reduced
EFG Asset Management (North America) Corp.27,735$5.56M1.23%−849−3.0%Reduced
Erste Asset Management GmbH28,510$5.56M0.11%00.0%Unchanged
KBC Group NV28,006$5.61M0.02%+21,629+339.2%Added
Teacher Retirement System of Texas28,787$5.77M0.04%+15,422+115.4%Added
Jump Financial, LLC29,776$5.96M0.24%+23,748+394.0%Added
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund29,915$5.99M0.08%+1,000+3.5%Added
USS Investment Management Ltd30,025$6.01M0.08%−1,209−3.9%Reduced
Brown Advisory Inc31,298$6.27M0.01%−517−1.6%Reduced
Liontrust Investment Partners LLP33,229$6.66M0.10%+33,229New
Toronto Dominion Bank34,179$6.84M0.01%−2,491−6.8%Reduced
Wealthfront Advisers LLC34,313$6.87M0.03%+1,727+5.3%Added
Allspring Global Investments Holdings, LLC34,381$6.89M0.01%−2,887−7.7%Reduced
Arizona State Retirement System35,767$7.16M0.06%+1,793+5.3%Added
Driehaus Capital Management LLC36,260$7.26M0.10%−32,991−47.6%Reduced
Intech Investment Management LLC37,165$7.44M0.06%+11,093+42.5%Added
Korea Investment CORP37,259$7.46M0.02%+1,116+3.1%Added
Rosenblum Silverman Sutton S F Inc37,543$7.52M2.74%−2,340−5.9%Reduced
Rafferty Asset Management, LLC38,191$7.65M0.05%+1,888+5.2%Added
HSBC Holdings PLC39,294$7.87M0.01%+6,560+20.0%Added
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main39,316$7.88M0.01%+3,941+11.1%Added
Ensign Peak Advisors, Inc39,575$7.93M0.02%+2,482+6.7%Added
UBS Group AG40,104$8.03M0.00%−7,247−15.3%Reduced
Storebrand Asset Management AS41,613$8.34M0.04%−839−2.0%Reduced
Great West Life Assurance Co43,009$8.63M0.02%+700+1.7%Added
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.43,890$8.79M0.02%+3,421+8.5%Added
Tang Capital Management LLC45,000$9.01M1.34%−60,000−57.1%Reduced
Andra AP-fonden45,200$9.05M0.24%−10,400−18.7%Reduced
Macquarie Group Ltd45,729$9.16M0.01%+511+1.1%Added
Federated Hermes, Inc.46,305$9.28M0.02%−804−1.7%Reduced
International Biotechnology Trust PLC46,600$9.33M2.60%+8,600+22.6%Added
Asset Management One Co.,Ltd.48,378$9.69M0.04%+546+1.1%Added
Capital International Inc51,292$10.3M0.21%+4,082+8.6%Added
Robeco Institutional Asset Management B.V.52,758$10.6M0.03%+771+1.5%Added
Bank of Montreal57,728$11.6M0.01%+33,660+139.9%Added
Victory Capital Management Inc60,870$12.2M0.01%+738+1.2%Added
Teachers Retirement System of the State of Kentucky62,453$12.5M0.13%+1,400+2.3%Added
Public Employees Retirement System of Ohio65,349$13.1M0.05%−2,750−4.0%Reduced
Mirae Asset Global Investments Co., Ltd.65,934$13.2M0.03%+7,604+13.0%Added
Nomura Asset Management Co Ltd67,298$13.5M0.07%+9,798+17.0%Added
BNP Paribas Arbitrage, SA71,083$14.2M0.03%+42,972+152.9%Added
Jane Street Group, LLC72,869$14.6M0.03%−46,107−38.8%Reduced
State of New Jersey Common Pension Fund D73,793$14.8M0.05%+1,561+2.2%Added
Rhenman & Partners Asset Management AB76,000$14.8M1.63%+3,000+4.1%Added
Lombard Odier Asset Management (Switzerland) SA76,103$15.2M1.33%+19,365+34.1%Added
Clearbridge Investments, LLC76,274$15.3M0.01%+19,614+34.6%Added
Capital International Sarl77,090$15.4M0.78%+10,214+15.3%Added
Citigroup Inc78,861$15.8M0.02%−117,400−59.8%Reduced
Van Eck Associates Corp81,281$16.3M0.04%−11,099−12.0%Reduced
Treasurer of the State of North Carolina88,477$17.7M0.10%+2,110+2.4%Added
Neuberger Berman Group LLC89,452$17.9M0.02%+28,682+47.2%Added
Nicholas Investment Partners, LP90,351$18.1M1.38%+37,467+70.8%Added
Capital International Ltd93,581$18.7M1.12%+5,536+6.3%Added
Citadel Advisors LLC104,336$20.9M0.02%+102,896+7,145.6%Added
APG Asset Management N.V.115,424$21.3M0.05%−9,766−7.8%Reduced
Aviva PLC107,172$21.5M0.10%−22,668−17.5%Reduced
Susquehanna International Group, LLP114,401$22.9M0.04%+83,736+273.1%Added
BNP PARIBAS ASSET MANAGEMENT Holding S.A.114,895$23.0M0.08%−11,952−9.4%Reduced
Novo Holdings A/S118,383$23.7M1.69%+6,383+5.7%Added
DekaBank Deutsche Girozentrale124,045$24.0M0.06%+33,692+37.3%Added
CIBC Private Wealth Group, LLC120,981$24.2M0.07%−885−0.7%Reduced
Royal London Asset Management Ltd124,771$25.0M0.10%+82,693+196.5%Added
HighTower Advisors, LLC125,560$25.1M0.05%−182−0.1%Reduced
Skandinaviska Enskilda Banken AB (publ)126,520$25.3M0.18%+34,954+38.2%Added
Tobam126,760$25.4M1.67%+10,712+9.2%Added
FIL Ltd128,811$25.8M0.03%+128,807+3,220,175.0%Added