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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, Q3 2023

Institutional positions in Alnylam Pharmaceuticals, Inc. as of Sep 30, 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
454
−15 vs. Q2 2023
Shares held
117.8M
+10.8K (0.0%) vs. Q2 2023
Total value
$20.9B
−$1.52B (−6.8%) vs. Q2 2023
New holders
43
161 more added
Sold out
58
165 more reduced

8 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2023: 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 holdersQ3 2023: 454 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 heldQ3 2023: $20.9B
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, Q3 2023

Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q2 2023.

Institutions holding ALNY in Q3 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Soleus Capital Management, L.P.3,900$690.7K0.07%+3,900New
Brighton Jones LLC3,912$692.8K0.04%+136+3.6%Added
Prudential Financial Inc3,912$692.8K0.00%+13+0.3%Added
Atlantic Trust, LLC3,981$705.0K0.23%00.0%Unchanged
J.P. Marvel Investment Advisors, LLC4,000$708.4K0.15%00.0%Unchanged
Omers Administration Corp4,000$708.4K0.01%+4,000New
Creative Planning4,121$729.9K0.00%−835−16.8%Reduced
Gilbert & Cook, Inc.4,126$730.7K0.12%+2,766+203.4%Added
Swiss Life Asset Management Ltd4,188$741.0K0.01%−129−3.0%Reduced
Captrust Financial Advisors4,187$741.5K0.00%−734−14.9%Reduced
Advisor Group Holdings, Inc.4,220$747.3K0.00%+182+4.5%Added
First Hawaiian Bank4,250$752.7K0.03%00.0%Unchanged
Metis Global Partners, LLC4,288$759.4K0.04%+342+8.7%Added
CIBC Asset Management Inc4,322$765.4K0.00%+128+3.1%Added
Commonwealth Equity Services, LLC4,372$774.0K0.00%+363+9.1%Added
Steel Peak Wealth Management LLC4,425$783.7K0.05%+1,408+46.7%Added
Oppenheimer & Co Inc4,519$800.3K0.02%+93+2.1%Added
Commerce Bank4,606$815.7K0.01%+28+0.6%Added
Brandywine Managers, LLC4,608$816.1K1.38%00.0%Unchanged
Jefferies Financial Group Inc.4,778$846.2K0.02%−5,129−51.8%Reduced
Shell Asset Management Co4,832$856.0K0.04%−77−1.6%Reduced
Prudential PLC4,878$863.9K0.01%−761−13.5%Reduced
Quattro Financial Advisors LLC5,000$885.5K0.39%00.0%Unchanged
Tower Research Capital LLC (TRC)5,090$901.4K0.03%−4,481−46.8%Reduced
JustInvest LLC5,735$1.02M0.03%−623−9.8%Reduced
Bokf, NA6,722$1.02M0.02%+1,706+34.0%Added
Assetmark, Inc5,778$1.02M0.00%+934+19.3%Added
Estate Counselors, LLC6,060$1.07M0.14%+45+0.7%Added
Capital Group Private Client Services, Inc.6,261$1.11M0.01%−93−1.5%Reduced
Twin Tree Management, LP6,289$1.11M0.04%+6,289New
Values First Advisors, Inc.6,507$1.15M0.74%−50−0.8%Reduced
MetLife Investment Management6,596$1.17M0.01%+4+0.1%Added
Assenagon Asset Management S.A.6,730$1.19M0.00%−84,132−92.6%Reduced
Oregon Public Employees Retirement Fund6,819$1.21M0.02%−3,309−32.7%Reduced
Simplex Trading, LLC6,845$1.21M0.04%+6,845New
M&T Bank Corp6,974$1.24M0.00%+124+1.8%Added
Dai-Ichi Life Insurance Company, Ltd7,100$1.26M0.03%+504+7.6%Added
Beacon Investment Advisory Services, Inc.7,115$1.26M0.06%−3,041−29.9%Reduced
Profund Advisors LLC7,257$1.29M0.07%−472−6.1%Reduced
US Bancorp7,268$1.29M0.00%−149−2.0%Reduced
Pinebridge Investments, L.P.7,376$1.31M0.01%+7,376New
Panagora Asset Management Inc7,457$1.32M0.01%+2,336+45.6%Added
Schroder Investment Management Group7,655$1.36M0.00%−548−6.7%Reduced
Ategra Capital Management, LLC7,990$1.42M0.77%−20.0%Reduced
Robeco Institutional Asset Management B.V.8,036$1.42M0.00%−19,107−70.4%Reduced
Stifel Financial Corp8,069$1.43M0.00%−1,253−13.4%Reduced
Nisa Investment Advisors, LLC8,155$1.44M0.01%00.0%Unchanged
ProShare Advisors LLC8,172$1.45M0.00%+115+1.4%Added
Nordea Investment Management AB8,690$1.53M0.00%+263+3.1%Added
XTX Topco Ltd8,836$1.56M0.27%+4,332+96.2%Added
Achmea Investment Management B.V.8,925$1.58M0.03%−184−2.0%Reduced
AQR Capital Management LLC9,460$1.66M0.00%+3,726+65.0%Added
Duality Advisers, LP9,430$1.67M0.20%+5,697+152.6%Added
Maryland State Retirement & Pension System9,451$1.67M0.04%00.0%Unchanged
Sumitomo Mitsui DS Asset Management Company, Ltd9,523$1.69M0.03%−26−0.3%Reduced
Daiwa Securities Group Inc.10,405$1.84M0.01%−114−1.1%Reduced
Elo Mutual Pension Insurance Co10,422$1.85M0.06%+224+2.2%Added
Cullen/Frost Bankers, Inc.10,549$1.87M0.03%00.0%Unchanged
Trexquant Investment LP11,021$1.95M0.05%+11,021New
Intech Investment Management LLC11,230$1.99M0.03%+2,864+34.2%Added
Gulf International Bank (UK) Ltd11,296$2.00M0.06%−1,274−10.1%Reduced
British Columbia Investment Management Corp11,321$2.00M0.02%+144+1.3%Added
HAP Trading, LLC11,351$2.01M0.50%+11,351New
Karani Asset Management LLC11,555$2.05M2.95%−3,690−24.2%Reduced
Portman Square Capital LLP11,914$2.11M0.29%+2,146+22.0%Added
Wealthfront Advisers LLC12,357$2.19M0.01%−15,289−55.3%Reduced
Raymond James & Associates12,411$2.20M0.00%+598+5.1%Added
Caisse de Depot Et Placement du Quebec12,711$2.25M0.01%00.0%Unchanged
Amalgamated Bank12,746$2.26M0.02%−400−3.0%Reduced
PEAK6 Investments LLC13,112$2.32M0.11%+4,743+56.7%Added
Rockefeller Capital Management L.P.13,184$2.33M0.01%+13,184New
Comerica Bank13,426$2.38M0.01%+13,426New
CWM Advisors, LLC13,458$2.38M0.30%−6,401−32.2%Reduced
Silvant Capital Management LLC13,661$2.42M0.15%00.0%Unchanged
Gateway Investment Advisers LLC13,951$2.47M0.03%+2,393+20.7%Added
Mariner, LLC14,181$2.51M0.01%−3,654−20.5%Reduced
Allianz Asset Management GmbH14,451$2.56M0.01%−2,144−12.9%Reduced
PDT Partners, LLC14,467$2.56M0.32%+14,467New
AIA Group Ltd14,644$2.59M0.13%+2,050+16.3%Added
Nissay Asset Management Corp14,773$2.62M0.02%+537+3.8%Added
Xponance, Inc.14,984$2.65M0.04%+109+0.7%Added
Public Employees Retirement Association of Colorado15,106$2.67M0.01%−584−3.7%Reduced
EFG Asset Management (Americas) Corp.15,457$2.74M0.66%−278−1.8%Reduced
KBC Group NV15,510$2.75M0.01%+1,390+9.8%Added
Illinois Municipal Retirement Fund15,644$2.77M0.05%+15,644New
The PNC Financial Services Group, Inc.15,665$2.77M0.00%−39−0.2%Reduced
Cubist Systematic Strategies, LLC15,681$2.78M0.03%+11,212+250.9%Added
LPL Financial LLC15,770$2.79M0.00%+895+6.0%Added
Lazard Asset Management LLC15,831$2.80M0.00%+14,892+1,585.9%Added
Artia Global Partners LP15,971$2.83M1.18%00.0%Unchanged
Federation des caisses Desjardins du Quebec16,039$2.84M0.03%−1,167−6.8%Reduced
Millennium Management LLC16,107$2.85M0.00%−58,873−78.5%Reduced
Point72 Middle East FZE16,651$2.95M0.18%+1,244+8.1%Added
Guggenheim Capital LLC17,244$3.05M0.03%−2,422−12.3%Reduced
Aquatic Capital Management LLC17,900$3.17M0.13%+17,900New
Segantii Capital Management Ltd19,250$3.41M0.13%−9,550−33.2%Reduced
SG Americas Securities, LLC19,836$3.51M0.05%+16,025+420.5%Added
Privium Fund Management B.V.20,023$3.55M1.05%+20,023New
Man Group plc–$3.59M0.01%––
Tredje AP-fonden20,556$3.64M0.05%−1,812−8.1%Reduced