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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 2023

Institutional positions in Alnylam Pharmaceuticals, Inc. as of Jun 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
477
0 vs. Q1 2023
Shares held
118.6M
−995.1K (−0.8%) vs. Q1 2023
Total value
$22.5B
−$1.43B (−6.0%) vs. Q1 2023
New holders
54
163 more added
Sold out
54
156 more reduced

1 institution that held it in Q1 2023 haven't filed for Q2 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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 holdersQ2 2023: 477 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 2023: $22.5B
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 2023

Shares, value and share of portfolio for each institution holding Alnylam Pharmaceuticals, Inc.; share changes are against Q1 2023.

Institutions holding ALNY in Q2 2023
InstitutionSharesValue% of portfolioChange in sharesAction
World Equity Group, Inc.3,060$581.2K0.17%−30,380−90.8%Reduced
Impax Asset Management Group plc3,068$582.7K0.00%+48+1.6%Added
Tokio Marine Asset Management Co Ltd3,071$583.3K0.04%+204+7.1%Added
Emerald Advisers, LLC3,086$586.2K0.03%−46−1.5%Reduced
D.A. Davidson & Co.3,233$614.1K0.01%+20+0.6%Added
Hall Laurie J Trustee3,250$617.0K0.24%00.0%Unchanged
National Bank of Canada3,266$619.6K0.00%+143+4.6%Added
MML Investors Services, LLC3,266$620.0K0.00%+604+22.7%Added
VELA Investment Management, LLC3,417$649.0K0.30%00.0%Unchanged
Sanders Morris Harris LLC3,500$663.9K0.15%+3,500New
Spectrum Planning & Advisory Services Inc.3,591$681.2K1.02%00.0%Unchanged
AtonRa Partners3,610$685.7K1.06%−158−4.2%Reduced
Western Financial Corp3,630$689.5K0.47%+654+22.0%Added
B. Metzler seel. Sohn & Co. AG3,691$701.1K0.01%00.0%Unchanged
Duality Advisers, LP3,733$709.0K0.09%+1,682+82.0%Added
Blueshift Asset Management, LLC3,763$714.7K0.27%+3,763New
Brighton Jones LLC3,776$717.2K0.04%+23+0.6%Added
SG Americas Securities, LLC3,811$724.0K0.01%−7,883−67.4%Reduced
Gotham Asset Management, LLC3,857$732.6K0.02%−1,259−24.6%Reduced
Vontobel Holding Ltd.3,894$739.6K0.01%−740−16.0%Reduced
Prudential Financial Inc3,899$740.6K0.00%+405+11.6%Added
Metis Global Partners, LLC3,946$749.5K0.04%+300+8.2%Added
Orion Capital Management LLC3,975$755.0K0.50%00.0%Unchanged
Howland Capital Management LLC4,000$759.8K0.04%00.0%Unchanged
J.P. Marvel Investment Advisors, LLC4,000$759.8K0.16%00.0%Unchanged
Commonwealth Equity Services, LLC4,009$761.0K0.00%+348+9.5%Added
Atlantic Trust, LLC3,981$766.3K0.25%00.0%Unchanged
HighVista Strategies LLC4,056$770.4K0.35%00.0%Unchanged
Federated Hermes, Inc.4,060$771.2K0.00%−42,245−91.2%Reduced
Advisor Group Holdings, Inc.4,038$771.8K0.00%+284+7.6%Added
CIBC Asset Management Inc4,194$796.6K0.00%+3+0.1%Added
First Hawaiian Bank4,250$807.2K0.03%+227+5.6%Added
Swiss Life Asset Management Ltd4,317$820.6K0.01%−25−0.6%Reduced
Oppenheimer & Co Inc4,426$840.7K0.02%+149+3.5%Added
Cubist Systematic Strategies, LLC4,469$848.9K0.01%+3,411+322.4%Added
Walleye Trading LLC4,489$852.6K0.04%−1,548−25.6%Reduced
XTX Topco Ltd4,504$855.5K0.15%+4,504New
Commerce Bank4,578$869.5K0.01%−30−0.7%Reduced
Brandywine Managers, LLC4,608$875.2K0.58%00.0%Unchanged
Lakeview Capital Partners, LLC4,710$894.6K0.17%+154+3.4%Added
Assetmark, Inc4,844$920.1K0.00%+475+10.9%Added
Banque Cantonale Vaudoise4,900$931.0K0.04%+2,100+75.0%Added
Shell Asset Management Co4,909$932.0K0.04%−99−2.0%Reduced
Captrust Financial Advisors4,921$934.7K0.00%+2,736+125.2%Added
Creative Planning4,956$941.4K0.00%+1,379+38.6%Added
Quattro Financial Advisors LLC5,000$949.7K0.38%00.0%Unchanged
Bokf, NA5,016$952.7K0.02%−149−2.9%Reduced
Two Sigma Securities, LLC5,111$970.8K0.08%+3,590+236.0%Added
Panagora Asset Management Inc5,121$972.7K0.01%00.0%Unchanged
Engineers Gate Manager LP5,286$1.00M0.04%−909−14.7%Reduced
Prudential PLC5,639$1.07M0.01%−81−1.4%Reduced
AQR Capital Management LLC5,734$1.09M0.00%−373−6.1%Reduced
Estate Counselors, LLC6,015$1.14M0.14%00.0%Unchanged
Chartwell Investment Partners, LLC6,174$1.17M0.04%−4−0.1%Reduced
Healthcare of Ontario Pension Plan Trust Fund6,295$1.20M0.01%+5,781+1,124.7%Added
Capital Group Private Client Services, Inc.6,354$1.21M0.01%+6,354New
JustInvest LLC6,358$1.21M0.04%+59+0.9%Added
Values First Advisors, Inc.6,557$1.25M0.75%+146+2.3%Added
MetLife Investment Management6,592$1.25M0.01%−858−11.5%Reduced
Dai-Ichi Life Insurance Company, Ltd6,596$1.25M0.03%−383−5.5%Reduced
M&T Bank Corp6,850$1.30M0.00%−20−0.3%Reduced
US Bancorp7,417$1.41M0.00%−588−7.3%Reduced
Profund Advisors LLC7,729$1.47M0.08%+959+14.2%Added
Aviva PLC7,957$1.51M0.01%−99,215−92.6%Reduced
Ategra Capital Management, LLC7,992$1.52M0.82%+7,992New
Sivik Global Healthcare LLC8,000$1.52M0.61%+500+6.7%Added
ProShare Advisors LLC8,057$1.53M0.00%−757−8.6%Reduced
Nisa Investment Advisors, LLC8,155$1.55M0.01%−2,200−21.2%Reduced
Schroder Investment Management Group8,203$1.56M0.00%−661−7.5%Reduced
Exchange Traded Concepts, LLC8,233$1.56M0.04%−13,035−61.3%Reduced
Intech Investment Management LLC8,366$1.59M0.02%−28,799−77.5%Reduced
PEAK6 Investments LLC8,369$1.59M0.14%+1,591+23.5%Added
Jump Financial, LLC8,439$1.60M0.06%−21,337−71.7%Reduced
Tudor Investment Corp Et Al8,627$1.64M0.03%+8,627New
Nordea Investment Management AB8,427$1.65M0.00%−216−2.5%Reduced
Achmea Investment Management B.V.9,109$1.73M0.04%+1,698+22.9%Added
Stifel Financial Corp9,322$1.77M0.00%+1,611+20.9%Added
Maryland State Retirement & Pension System9,451$1.80M0.04%−214−2.2%Reduced
Sumitomo Mitsui DS Asset Management Company, Ltd9,549$1.81M0.03%+1,259+15.2%Added
Tower Research Capital LLC (TRC)9,571$1.82M0.06%+8,895+1,315.8%Added
Portman Square Capital LLP9,768$1.86M0.33%+4,876+99.7%Added
Jefferies Financial Group Inc.9,907$1.88M0.04%+5,367+118.2%Added
Oregon Public Employees Retirement Fund10,128$1.92M0.02%−10,100−49.9%Reduced
Beacon Investment Advisory Services, Inc.10,156$1.93M0.09%−301−2.9%Reduced
Elo Mutual Pension Insurance Co10,198$1.94M0.06%+10,198New
Parametrica Management Ltd10,246$1.95M3.75%+4,293+72.1%Added
Daiwa Securities Group Inc.10,519$2.00M0.01%+71+0.7%Added
Cullen/Frost Bankers, Inc.10,549$2.00M0.03%00.0%Unchanged
Marshall Wace, LLP11,085$2.11M0.00%+11,085New
British Columbia Investment Management Corp11,177$2.12M0.02%+219+2.0%Added
Liontrust Investment Partners LLP11,223$2.13M0.03%−22,006−66.2%Reduced
Edgestream Partners, L.P.11,545$2.19M0.20%+3,872+50.5%Added
Gateway Investment Advisers LLC11,558$2.20M0.03%+486+4.4%Added
Raymond James & Associates11,813$2.24M0.00%+1,230+11.6%Added
Gulf International Bank (UK) Ltd12,570$2.39M0.06%−3,691−22.7%Reduced
AIA Group Ltd12,594$2.39M0.12%+6,910+121.6%Added
Caisse de Depot Et Placement du Quebec12,711$2.41M0.01%−2,189−14.7%Reduced
China Universal Asset Management Co., Ltd.13,072$2.48M0.77%+9,868+308.0%Added
Amalgamated Bank13,146$2.50M0.02%−932−6.6%Reduced
Silvant Capital Management LLC13,661$2.59M0.15%00.0%Unchanged