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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 2024

Institutional positions in Alnylam Pharmaceuticals, Inc. as of Jun 30, 2024. 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
525
+32 vs. Q1 2024
Shares held
119.9M
+5.25M (+4.6%) vs. Q1 2024
Total value
$29.1B
+$12.0B (+70.0%) vs. Q1 2024
New holders
89
194 more added
Sold out
57
167 more reduced

6 institutions that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2024: 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 2024: 525 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 2024: $29.1B
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 2024

Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q1 2024.

Institutions holding ALNY in Q2 2024
InstitutionSharesValue% of portfolioChange in sharesAction
PDT Partners, LLC14,284$3.47M0.33%+14,284New
Principal Financial Group Inc14,189$3.45M0.00%−5,167−26.7%Reduced
Silvant Capital Management LLC13,661$3.32M0.15%00.0%Unchanged
Mirae Asset Global Investments Co., Ltd.13,192$3.26M0.02%−49,223−78.9%Reduced
Public Employees Retirement Association of Colorado13,384$3.25M0.01%−491−3.5%Reduced
Jacobs Levy Equity Management, Inc13,283$3.23M0.01%−113,084−89.5%Reduced
Gotham Asset Management, LLC13,237$3.22M0.04%+11,190+546.7%Added
Comerica Bank12,588$3.06M0.01%−415−3.2%Reduced
Sectoral Asset Management Inc12,480$3.03M1.23%−5,980−32.4%Reduced
The PNC Financial Services Group, Inc.12,399$3.01M0.00%+212+1.7%Added
Toronto Dominion Bank12,151$2.95M0.00%−835−6.4%Reduced
Sumitomo Mitsui DS Asset Management Company, Ltd12,114$2.94M0.03%+2,619+27.6%Added
Portman Square Capital LLP11,848$2.88M0.97%−4,175−26.1%Reduced
Toroso Investments, LLC11,733$2.85M0.04%+1,452+14.1%Added
Elo Mutual Pension Insurance Co11,372$2.76M0.06%−95−0.8%Reduced
Daiwa Securities Group Inc.11,292$2.74M0.01%+371+3.4%Added
Storebrand Asset Management AS11,286$2.74M0.01%−7,220−39.0%Reduced
Aviva PLC10,891$2.65M0.01%+6,113+127.9%Added
Penserra Capital Management LLC10,827$2.63M0.03%+10,818+120,200.0%Added
Cullen/Frost Bankers, Inc.10,555$2.56M0.04%−7−0.1%Reduced
Gulf International Bank (UK) Ltd10,328$2.51M0.06%00.0%Unchanged
Polar Asset Management Partners Inc.10,000$2.43M0.06%−12,600−55.8%Reduced
Maryland State Retirement & Pension System9,836$2.39M0.04%00.0%Unchanged
Readystate Asset Management LP9,600$2.33M0.11%+9,600New
Nordea Investment Management AB9,434$2.31M0.00%+454+5.1%Added
Quantitative Investment Management, LLC9,336$2.27M0.25%+5,867+169.1%Added
MBB Public Markets I LLC9,200$2.24M0.05%+9,200New
LMR Partners LLP8,971$2.18M0.05%−62,400−87.4%Reduced
Pinebridge Investments, L.P.8,910$2.17M0.02%−4,442−33.3%Reduced
Simplex Trading, LLC8,803$2.14M0.07%+8,803New
Assetmark, Inc8,486$2.06M0.01%+905+11.9%Added
M&T Bank Corp8,439$2.05M0.01%+2,013+31.3%Added
Vontobel Holding Ltd.8,413$2.04M0.01%−278−3.2%Reduced
Amalgamated Bank8,354$2.03M0.02%+301+3.7%Added
Nisa Investment Advisors, LLC8,155$1.98M0.01%00.0%Unchanged
Wealthfront Advisers LLC8,096$1.97M0.01%+6+0.1%Added
Creative Planning8,034$1.95M0.00%+3,110+63.2%Added
Mariner, LLC7,887$1.92M0.00%+993+14.4%Added
ProShare Advisors LLC7,809$1.90M0.01%−1,018−11.5%Reduced
Employees Retirement System of Texas7,717$1.88M0.02%00.0%Unchanged
Values First Advisors, Inc.7,590$1.84M1.11%−148−1.9%Reduced
MetLife Investment Management7,462$1.81M0.01%+856+13.0%Added
Verition Fund Management LLC7,415$1.80M0.01%+3,019+68.7%Added
FORA Capital, LLC7,173$1.74M0.21%+7,173New
JustInvest LLC7,153$1.74M0.03%+1,067+17.5%Added
Intech Investment Management LLC7,145$1.74M0.02%−3,740−34.4%Reduced
US Bancorp7,094$1.72M0.00%+534+8.1%Added
Engineers Gate Manager LP7,074$1.72M0.04%−17,649−71.4%Reduced
J. Safra Sarasin Holding AG6,871$1.67M0.03%+6,871New
Entropy Technologies, LP6,849$1.66M0.18%+6,849New
CIBC World Markets Corp6,818$1.66M0.01%+1,680+32.7%Added
Cinctive Capital Management LP6,781$1.65M0.09%−203−2.9%Reduced
Gateway Investment Advisers LLC6,677$1.62M0.02%−12,360−64.9%Reduced
Bank of Nova Scotia6,634$1.61M0.00%−6,729−50.4%Reduced
Advisory Services Network, LLC6,569$1.60M0.03%+6,569New
Nomura Holdings Inc6,426$1.56M0.01%+6,426New
BNP PARIBAS ASSET MANAGEMENT Holding S.A.6,074$1.48M0.00%−556−8.4%Reduced
Edgestream Partners, L.P.6,052$1.47M0.07%−17,303−74.1%Reduced
Stifel Financial Corp5,939$1.44M0.00%−2,401−28.8%Reduced
Commonwealth Equity Services, LLC5,752$1.40M0.00%+158+2.8%Added
Bokf, NA5,751$1.40M0.03%−961−14.3%Reduced
S&CO Inc5,750$1.40M0.10%00.0%Unchanged
Ostrum Asset Management5,742$1.40M0.12%−447−7.2%Reduced
Pathstone Holdings, LLC5,620$1.37M0.01%+1,762+45.7%Added
Cerity Partners LLC5,574$1.35M0.00%+2,382+74.6%Added
Inceptionr LLC5,397$1.31M0.37%+5,397New
Knollwood Investment Advisory, LLC5,355$1.30M0.14%+5,355New
Liontrust Investment Partners LLP5,083$1.24M0.02%+4,933+3,288.7%Added
Quattro Financial Advisors LLC5,000$1.22M0.32%00.0%Unchanged
Diversified Trust Co4,978$1.21M0.03%+4,978New
Prelude Capital Management, LLC4,933$1.20M0.10%−1,998−28.8%Reduced
E Fund Management Co., Ltd.4,926$1.20M0.07%+2,112+75.1%Added
Atom Investors LP4,800$1.17M0.12%+663+16.0%Added
Healthcare of Ontario Pension Plan Trust Fund4,744$1.15M0.00%+4,744New
Beacon Investment Advisory Services, Inc.4,636$1.13M0.05%−382−7.6%Reduced
Commerce Bank4,617$1.12M0.01%−39−0.8%Reduced
Advisors Asset Management, Inc.4,578$1.11M0.02%+541+13.4%Added
BI Asset Management Fondsmaeglerselskab A/S4,562$1.11M0.02%+838+22.5%Added
Omers Administration Corp4,361$1.06M0.01%+4,361New
Brandywine Managers, LLC4,348$1.06M1.12%00.0%Unchanged
State of Alaska, Department of Revenue4,275$1.04M0.01%+4,275New
Machina Capital S.A.S.4,266$1.04M0.47%+4,266New
CIBC Asset Management Inc4,249$1.03M0.00%+227+5.6%Added
Wealth Enhancement Advisory Services, LLC4,131$1.00M0.00%+1,184+40.2%Added
Gilbert & Cook, Inc.4,061$986.8K0.14%−424−9.5%Reduced
B. Metzler seel. Sohn & Co. AG4,017$976.1K0.01%+99+2.5%Added
Achmea Investment Management B.V.4,014$975.0K0.02%00.0%Unchanged
First Hawaiian Bank4,000$972.0K0.03%00.0%Unchanged
Howland Capital Management LLC4,000$972.0K0.05%00.0%Unchanged
J.P. Marvel Investment Advisors, LLC4,000$972.0K0.16%00.0%Unchanged
Atlantic Trust, LLC3,981$967.4K0.24%00.0%Unchanged
Tokio Marine Asset Management Co Ltd3,973$965.4K0.05%+124+3.2%Added
GraniteShares Advisors LLC3,870$940.4K0.31%+693+21.8%Added
Prudential Financial Inc3,659$889.1K0.00%−202−5.2%Reduced
Ci Investments Inc.3,622$880.0K0.00%−269−6.9%Reduced
Spectrum Planning & Advisory Services Inc.3,560$879.3K0.85%+3,560New
Captrust Financial Advisors3,596$873.8K0.00%−43−1.2%Reduced
Orion Capital Management LLC3,575$868.7K0.46%−100−2.7%Reduced
Steel Peak Wealth Management LLC3,546$861.7K0.04%−3,314−48.3%Reduced
Plato Investment Management Ltd3,529$857.5K0.08%−980−21.7%Reduced