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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, Q2 2021

Institutional positions in Alnylam Pharmaceuticals, Inc. as of Jun 30, 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
401
+11 vs. Q1 2021
Shares held
112.3M
+3.08M (+2.8%) vs. Q1 2021
Total value
$19.0B
+$3.63B (+23.5%) vs. Q1 2021
New holders
55
139 more added
Sold out
44
133 more reduced

1 institution that held it in Q1 2021 haven't filed for Q2 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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 holdersQ2 2021: 401 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 heldQ2 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, Q2 2021

Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q1 2021.

Institutions holding ALNY in Q2 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Seeyond9,755$1.65M0.15%+44+0.5%Added
Maryland State Retirement & Pension System8,827$1.54M0.05%00.0%Unchanged
Connor, Clark & Lunn Investment Management Ltd.8,964$1.52M0.01%−6,092−40.5%Reduced
Beacon Investment Advisory Services, Inc.8,935$1.51M0.06%+602+7.2%Added
Ergoteles LLC8,811$1.49M0.03%+8,811New
Tobam8,657$1.47M0.06%−29,764−77.5%Reduced
US Bancorp8,483$1.44M0.00%+239+2.9%Added
Natixis8,472$1.44M0.01%+1,961+30.1%Added
Metropolitan Life Insurance Co8,123$1.38M0.02%−268−3.2%Reduced
AtonRa Partners8,097$1.37M0.50%−12,113−59.9%Reduced
Prelude Capital Management, LLC7,964$1.35M0.07%−6,216−43.8%Reduced
Amalgamated Bank7,944$1.35M0.01%+2,264+39.9%Added
MML Investors Services, LLC7,667$1.30M0.01%+440+6.1%Added
Y-Intercept (Hong Kong) Ltd7,592$1.29M0.33%+3,832+101.9%Added
Orion Capital Management LLC6,675$1.13M0.70%00.0%Unchanged
Wolverine Trading, LLC6,766$1.12M0.03%+2,394+54.8%Added
HighTower Advisors, LLC6,595$1.12M0.00%−78−1.2%Reduced
Caption Management, LLC6,600$1.12M0.10%+6,600New
Truist Financial Corp6,563$1.11M0.00%+838+14.6%Added
HRT Financial LP6,516$1.10M0.01%+1,292+24.7%Added
Cushing Asset Management, LP6,345$1.08M0.10%−160−2.5%Reduced
Values First Advisors, Inc.6,304$1.07M0.73%−130−2.0%Reduced
Susquehanna Fundamental Investments, LLC6,288$1.07M0.02%−17,733−73.8%Reduced
Bridgewater Associates, LP6,099$1.03M0.01%+6,099New
Sumitomo Mitsui DS Asset Management Company, Ltd6,029$1.02M0.02%−28−0.5%Reduced
Panagora Asset Management Inc6,009$1.02M0.01%−411−6.4%Reduced
Commerce Bank5,841$990.0K0.01%+53+0.9%Added
Allstate Corp5,814$986.0K0.03%−375−6.1%Reduced
Daiwa Securities Group Inc.5,798$983.0K0.01%−2,015−25.8%Reduced
Aevitas Wealth Management, Inc.5,457$925.0K0.59%00.0%Unchanged
Bradley Foster & Sargent Inc5,223$885.0K0.02%−1,622−23.7%Reduced
Advisor Group Holdings, Inc.5,168$876.0K0.00%+604+13.2%Added
Nordea Investment Management AB5,152$873.0K0.00%00.0%Unchanged
SG3 Management, LLC5,000$848.0K0.36%+1,000+25.0%Added
Centiva Capital, LP4,676$793.0K0.06%+4,676New
Schroder Investment Management Group4,656$789.0K0.00%+911+24.3%Added
Brandywine Managers, LLC4,608$781.0K0.89%00.0%Unchanged
Cambridge Investment Research Advisors, Inc.4,544$770.0K0.00%+95+2.1%Added
Commonwealth Equity Services, LLC4,372$741.0K0.00%−444−9.2%Reduced
CIBC Asset Management Inc4,351$738.0K0.00%+11+0.3%Added
Gateway Investment Advisers LLC4,244$719.0K0.01%00.0%Unchanged
Brewin Dolphin Ltd4,145$702.7K0.03%−4,000−49.1%Reduced
Prudential Financial Inc4,107$697.0K0.00%−27−0.7%Reduced
Emerald Advisers, LLC4,089$693.0K0.03%00.0%Unchanged
Shell Asset Management Co3,927$666.0K0.01%+960+32.4%Added
D.A. Davidson & Co.3,871$656.0K0.01%+246+6.8%Added
Hall Laurie J Trustee3,800$644.0K0.24%00.0%Unchanged
Nomura Holdings Inc3,722$631.0K0.01%−2,700−42.0%Reduced
Advisors Asset Management, Inc.3,685$625.0K0.01%−1,232−25.1%Reduced
Spectrum Planning & Advisory Services Inc.3,635$616.0K0.59%00.0%Unchanged
Robeco Institutional Asset Management B.V.3,602$611.0K0.00%−5,208−59.1%Reduced
Franklin Resources Inc3,605$611.0K0.00%+515+16.7%Added
Sanders Morris Harris LLC3,500$610.0K0.12%00.0%Unchanged
M&T Bank Corp3,557$604.0K0.00%−120−3.3%Reduced
Citizens Business Bank3,500$593.0K0.08%00.0%Unchanged
Kornitzer Capital Management Inc3,360$570.0K0.01%−2,400−41.7%Reduced
Dai-Ichi Life Insurance Company, Ltd3,357$569.0K0.01%00.0%Unchanged
IBM Retirement Fund3,316$562.0K0.04%−613−15.6%Reduced
Aigen Investment Management, LP3,283$557.0K0.10%+3,283New
Greenleaf Trust3,187$540.0K0.01%+40+1.3%Added
Agf Investments Inc.3,151$534.0K0.00%+2,035+182.3%Added
Banque Cantonale Vaudoise3,100$526.0K0.02%00.0%Unchanged
Virtu Financial LLC3,092$524.0K0.05%+3,092New
Clearstead Advisors, LLC3,000$509.0K0.04%00.0%Unchanged
Horizon Kinetics Asset Management LLC3,000$509.0K0.01%00.0%Unchanged
Virtus ETF Advisers LLC2,996$508.0K0.21%−1,725−36.5%Reduced
BP PLC2,921$495.0K0.02%−1,178−28.7%Reduced
Davenport & Co LLC2,884$489.0K0.00%+2,884New
Spearhead Capital Advisors, LLC2,829$480.0K0.07%+402+16.6%Added
Driehaus Capital Management LLC2,779$471.0K0.01%−29−1.0%Reduced
Gsa Capital Partners LLP2,732$463.0K0.05%+1,122+69.7%Added
FORA Capital, LLC2,664$452.0K0.08%+2,664New
Quantbot Technologies LP2,664$451.0K0.04%+2,664New
Advisory Research Inc2,652$450.0K0.03%+519+24.3%Added
AlphaCrest Capital Management LLC2,637$447.0K0.02%−294−10.0%Reduced
Redpoint Investment Management Pty Ltd2,490$422.0K0.03%00.0%Unchanged
American International Group, Inc.2,479$420.0K0.00%−110−4.2%Reduced
Brinker Capital Investments, LLC2,473$419.0K0.01%+558+29.1%Added
Fifth Third Bancorp2,341$397.0K0.00%00.0%Unchanged
Oppenheimer & Co Inc2,339$397.0K0.01%00.0%Unchanged
Walleye Trading LLC2,251$382.0K0.01%+1,597+244.2%Added
JustInvest LLC2,229$378.0K0.04%+2,229New
Private Advisor Group, LLC2,224$377.0K0.00%+788+54.9%Added
Argent Trust Co2,158$366.0K0.02%+139+6.9%Added
QS Investors, LLC2,124$361.0K0.00%−200−8.6%Reduced
Vontobel Holding Ltd.2,131$354.0K0.00%−45−2.1%Reduced
Tower Research Capital LLC (TRC)2,078$352.0K0.01%+793+61.7%Added
Two Sigma Securities, LLC2,066$350.0K0.09%+2,066New
Cetera Advisor Networks LLC2,065$350.0K0.00%+2,065New
Loring Wolcott & Coolidge Fiduciary Advisors LLP2,042$346.0K0.00%−5−0.2%Reduced
Corient Capital Partners, LLC2,028$344.0K0.03%+198+10.8%Added
Leonteq Securities AG2,023$342.9K0.03%−892−30.6%Reduced
J.P. Marvel Investment Advisors, LLC2,000$339.0K0.07%−400−16.7%Reduced
Segall Bryant & Hamill, LLC2,000$339.0K0.00%−9−0.4%Reduced
North Star Asset Management Inc2,000$339.0K0.02%00.0%Unchanged
Nixon Peabody Trust Co2,000$339.0K0.13%00.0%Unchanged
Toroso Investments, LLC2,001$339.0K0.01%+2,001New
Global Retirement Partners, LLC1,972$334.0K0.03%+160+8.8%Added
Vestcor Inc1,963$333.0K0.01%+1,963New
B. Metzler seel. Sohn & Co. Holding AG1,945$330.0K0.00%+468+31.7%Added