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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 2022

Institutional positions in Alnylam Pharmaceuticals, Inc. as of Mar 31, 2022. 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
443
+10 vs. Q4 2021
Shares held
114.0M
+1.95M (+1.7%) vs. Q4 2021
Total value
$18.6B
−$367.5M (−1.9%) vs. Q4 2021
New holders
68
154 more added
Sold out
58
149 more reduced

2 institutions that held it in Q4 2021 haven't filed for Q1 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2022: 443 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 2022: $18.6B
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 2022

Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q4 2021.

Institutions holding ALNY in Q1 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Baird Financial Group, Inc.1,379$225.0K0.00%+185+15.5%Added
Leonteq Securities AG1,479$241.5K0.01%+713+93.1%Added
XTX Topco Ltd1,497$244.0K0.11%+1,497New
Nixon Peabody Trust Co1,500$245.0K0.08%00.0%Unchanged
JGP Global Gestao de Recursos Ltda.1,501$245.0K0.14%+199+15.3%Added
Abbrea Capital, LLC1,575$257.0K0.04%00.0%Unchanged
Fukoku Mutual Life Insurance Co1,580$258.0K0.02%00.0%Unchanged
Wolverine Trading, LLC1,572$260.0K0.01%−2,054−56.6%Reduced
ProVise Management Group, LLC1,598$261.0K0.02%−30−1.8%Reduced
Altfest L J & Co Inc1,605$262.0K0.05%+1,605New
Geneos Wealth Management Inc.1,665$271.0K0.01%−58−3.4%Reduced
New York Life Investments Alternatives1,669$273.0K0.19%−729−30.4%Reduced
Tokio Marine Asset Management Co Ltd1,708$279.0K0.02%+168+10.9%Added
E Fund Management Co., Ltd.1,732$283.0K0.01%+1,732New
Beacon Pointe Advisors, LLC1,740$284.0K0.00%+395+29.4%Added
Yousif Capital Management, LLC1,751$286.0K0.00%+70+4.2%Added
Boston Private Wealth LLC1,759$287.0K0.00%+6+0.3%Added
Seven Eight Capital, LP1,764$288.0K0.04%+1,764New
Prudential PLC1,781$291.0K0.00%+1,781New
Cohen Lawrence B1,800$294.0K0.17%00.0%Unchanged
MUFG Americas Holdings Corp1,816$297.0K0.01%+61+3.5%Added
Western Wealth Management, LLC1,838$300.0K0.01%+1,838New
BI Asset Management Fondsmaeglerselskab A/S1,868$305.0K0.01%+1,868New
IBM Retirement Fund1,886$308.0K0.04%−91−4.6%Reduced
Vestcor Inc1,891$309.0K0.01%+424+28.9%Added
Astrantus Ltd1,900$310.0K0.52%−1,520−44.4%Reduced
Livforsakringsbolaget Skandia, Omsesidigt1,900$310.0K0.02%00.0%Unchanged
HRT Financial LP1,938$316.0K0.00%+1,938New
Virtus ETF Advisers LLC2,003$327.0K0.15%00.0%Unchanged
Segall Bryant & Hamill, LLC2,000$327.0K0.00%00.0%Unchanged
Security National Bank of So Dak2,000$327.0K0.23%+500+33.3%Added
North Star Asset Management Inc2,020$330.0K0.02%00.0%Unchanged
Loring Wolcott & Coolidge Fiduciary Advisors LLP2,025$331.0K0.00%00.0%Unchanged
Echo Street Capital Management LLC2,101$343.0K0.00%−1,830−46.6%Reduced
Citadel Advisors LLC2,108$344.0K0.00%−68,660−97.0%Reduced
Monograph Wealth Advisors, LLC2,134$348.0K0.09%00.0%Unchanged
Spearhead Capital Advisors, LLC2,177$355.0K0.04%−905−29.4%Reduced
Argent Trust Co2,186$358.0K0.02%−71−3.1%Reduced
Corient Capital Partners, LLC2,276$372.0K0.02%−36−1.6%Reduced
American International Group, Inc.2,278$372.0K0.00%+27+1.2%Added
B. Metzler seel. Sohn & Co. AG2,319$379.0K0.01%00.0%Unchanged
Advisory Research Inc2,339$382.0K0.03%−750−24.3%Reduced
Natixis2,366$386.0K0.00%−101,696−97.7%Reduced
Greenleaf Trust2,376$388.0K0.00%−811−25.4%Reduced
Toroso Investments, LLC2,403$392.0K0.01%+222+10.2%Added
Verition Fund Management LLC2,404$393.0K0.01%−4,982−67.5%Reduced
IndexIQ Advisors LLC2,413$394.0K0.01%+427+21.5%Added
Motley Fool Asset Management LLC2,424$396.0K0.03%+2,368+4,228.6%Added
Foundations Investment Advisors, LLC2,371$397.0K0.02%+60+2.6%Added
Redpoint Investment Management Pty Ltd2,490$407.0K0.04%00.0%Unchanged
Gsa Capital Partners LLP2,554$417.0K0.06%+2,554New
Aureus Asset Management, LLC2,563$419.0K0.03%+2,563New
Centiva Capital, LP2,594$424.0K0.02%+2,594New
Azzad Asset Management Inc2,604$425.2K0.06%−83−3.1%Reduced
Brinker Capital Investments, LLC2,774$453.0K0.01%−48−1.7%Reduced
Banque Cantonale Vaudoise2,800$458.0K0.02%00.0%Unchanged
Campbell & CO Investment Adviser LLC2,852$466.0K0.13%+2,852New
Pearl River Capital, LLC2,875$469.0K0.13%−2,026−41.3%Reduced
Veriti Management LLC2,897$473.0K0.06%+710+32.5%Added
Emerald Advisers, LLC2,936$479.0K0.02%−54−1.8%Reduced
Dai-Ichi Life Insurance Company, Ltd2,939$480.0K0.01%00.0%Unchanged
VELA Investment Management, LLC2,975$486.0K0.31%+544+22.4%Added
Robeco Institutional Asset Management B.V.2,990$488.0K0.00%+2,951+7,566.7%Added
TD Waterhouse Canada Inc.2,847$488.9K0.00%−29−1.0%Reduced
Horizon Kinetics Asset Management LLC3,000$490.0K0.01%00.0%Unchanged
Lloyd Park, LLC3,000$490.0K0.54%00.0%Unchanged
Winton Group Ltd3,046$497.0K0.03%+3,046New
World Equity Group, Inc.3,096$505.5K0.11%+3,096New
Hall Laurie J Trustee3,250$531.0K0.20%00.0%Unchanged
Cambridge Investment Research Advisors, Inc.3,285$536.0K0.00%+9+0.3%Added
Kornitzer Capital Management Inc3,360$549.0K0.01%00.0%Unchanged
Aigen Investment Management, LP3,420$558.0K0.10%+3,420New
Private Advisor Group, LLC3,472$567.0K0.00%−353−9.2%Reduced
Sanders Morris Harris LLC3,500$572.0K0.11%00.0%Unchanged
Citizens Business Bank3,500$572.0K0.07%00.0%Unchanged
Seeyond3,607$588.0K0.06%−3,837−51.5%Reduced
Spectrum Planning & Advisory Services Inc.3,635$594.0K0.54%00.0%Unchanged
AlphaCrest Capital Management LLC3,763$614.0K0.03%+974+34.9%Added
Quantbot Technologies LP3,806$621.0K0.05%+3,806New
Virtu Financial LLC3,862$631.0K0.05%−4,445−53.5%Reduced
Choate Investment Advisors3,961$647.0K0.03%+3,961New
D.A. Davidson & Co.3,981$650.0K0.01%−248−5.9%Reduced
Edgestream Partners, L.P.4,002$653.0K0.05%−17,985−81.8%Reduced
J.P. Marvel Investment Advisors, LLC4,008$654.0K0.13%00.0%Unchanged
Global Retirement Partners, LLC5,213$662.0K0.05%+5,213New
Sectoral Asset Management Inc4,070$665.0K0.12%−3,526−46.4%Reduced
Impax Asset Management Group plc4,098$669.0K0.00%+307+8.1%Added
JustInvest LLC4,193$685.0K0.03%+1,304+45.1%Added
Cetera Advisor Networks LLC4,299$702.0K0.01%+1,313+44.0%Added
Commerce Bank4,358$712.0K0.00%+100+2.3%Added
Clearstead Advisors, LLC4,508$736.0K0.05%+1,398+45.0%Added
Brandywine Managers, LLC4,608$752.0K1.30%00.0%Unchanged
M&T Bank Corp4,662$763.0K0.00%+1,075+30.0%Added
Prudential Financial Inc4,932$805.0K0.00%−60−1.2%Reduced
Brewin Dolphin Ltd5,000$816.0K0.03%00.0%Unchanged
Commonwealth Equity Services, LLC5,018$819.0K0.00%−193−3.7%Reduced
Oppenheimer & Co Inc5,012$819.0K0.01%+2,169+76.3%Added
Advisor Group Holdings, Inc.5,683$850.0K0.00%−165−2.8%Reduced
STRS Ohio5,291$863.0K0.00%+4,000+309.8%Added
CIBC Asset Management Inc5,387$880.0K0.00%+28+0.5%Added