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Alnylam Pharmaceuticals (ALNY) Institutional Ownership

Alnylam Pharmaceuticals logo
$288.06 -10.70 (-3.58%)
Closing price 07/13/2026 04:00 PM Eastern
Extended Trading
$287.19 -0.87 (-0.30%)
As of 04:04 AM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.

Institutional Ownership Changes (13F Filings) for Alnylam Pharmaceuticals (NASDAQ:ALNY)

Current
Institutional Ownership
Percentage
92.97%
Number of
Institutional Buyers
(last 12 months)
594
Total
Institutional Inflows
(last 12 months)
$8.11B
Number of
Institutional Sellers
(last 12 months)
360
Total
Institutional Outflows
(last 12 months)
$90.53B
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ALNY Institutional Buying and Selling by Quarter

Alnylam Pharmaceuticals Major Shareholders & Ownership History

Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
7/10/2026 Tema ETFs LLC1,930$581K0.0%-2.1%0.001%
7/10/2026 Generali Investments Management Co LLC946$285K0.1%-22.9%0.001%
7/10/2026 Handelsbanken Fonder AB107,255$32.29M0.1%-21.4%0.080%
7/10/2026 Perkins Coie Trust Co97$29K0.0%-58.5%0.000%
7/10/2026 Fulton Bank N.A.1,505$453K0.0%-2.8%0.001%
7/10/2026 Wealthcare Advisory Partners LLC1,280$385K0.0%-3.8%0.001%
7/9/2026 Everhart Financial Group Inc.2,646$797K0.1%-8.8%0.002%
7/8/2026 Beacon Investment Advisory Services Inc.99$30K0.0%-52.9%0.000%
7/8/2026 Bannerman Wealth Management Group LLC1,883$567K0.3%-1.7%0.001%
7/8/2026 PensionDanmark Pensionsforsikringsaktieselskab22,451$6.76M0.1%-35.1%0.017%
7/8/2026 Assenagon Asset Management S.A.155,695$46.87M0.1%+20.8%0.117%
7/7/2026 GAMMA Investing LLC937$282K0.0%-5.7%0.001%
7/2/2026 Versant Capital Management Inc390$117K0.0%-22.3%0.000%
6/18/2026Pacer Advisors Inc.4,478$1.48M0.0%-53.3%0.003%
6/3/2026Parallel Advisors LLC891$295K0.0%+7.9%0.001%
6/3/2026NewEdge Advisors LLC2,316$766K0.0%-82.2%0.002%
5/26/2026Glenmede Trust Co. NA731$242K0.0%+8.3%0.001%
5/22/2026Groupama Asset Managment36,767$12.17M0.2%+2.5%0.028%
5/22/2026Segall Bryant & Hamill LLC2,000$641K0.0%N/A0.001%
5/21/2026Essential Partners LLC100$33K0.0%-77.5%0.000%
5/20/2026Liontrust Investment Partners LLP18,218$6.03M0.1%-0.9%0.014%
5/19/2026Edgestream Partners L.P.5,810$1.92M0.1%-19.8%0.004%
5/19/2026Janus Henderson Group PLC147,089$48.66M0.0%+7.8%0.110%
5/19/2026Oddo BHF Asset Management Sas33,013$10.92M0.4%+9.6%0.025%
5/19/2026Bull Harbor Capital LLC634$210K0.1%N/A0.000%
5/18/2026EverSource Wealth Advisors LLC640$212K0.0%-39.7%0.000%
5/18/2026California State Teachers Retirement System196,863$65.14M0.1%-2.5%0.147%
5/18/2026Rock Springs Capital Management LP74,000$24.48M1.4%+3.9%0.055%
5/18/2026Empowered Funds LLC5,410$1.79M0.0%-72.2%0.004%
5/16/2026Quantinno Capital Management LP33,850$11.20M0.0%+32.3%0.025%
5/16/2026SummitTX Capital L.P.3,611$1.20M0.0%+4.2%0.003%
5/16/2026Lazard Asset Management LLC16,280$5.39M0.0%+60.4%0.012%
5/16/2026Orbimed Advisors LLC119,000$39.37M0.7%-58.8%0.089%
5/15/2026Quadcap Wealth Management LLC707$234K0.0%N/A0.001%
5/15/2026Bradley Foster & Sargent Inc. CT1,203$398K0.0%+71.6%0.001%
5/15/2026Lombard Odier Asset Management Switzerland SA3,320$1.10M0.0%N/A0.002%
5/15/2026Waverly Advisors LLC907$300K0.0%+8.0%0.001%
5/15/2026Wealth Alliance LLC1,016$336K0.0%N/A0.001%
5/15/2026Entropy Technologies LP35,719$11.82M0.5%+121.9%0.027%
5/14/2026Healthcare of Ontario Pension Plan Trust Fund34,781$11.51M0.0%-14.0%0.026%
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5/14/2026Dai ichi Life Insurance Company Ltd5,930$1.96M0.1%-5.2%0.004%
5/14/2026Public Employees Retirement System of Ohio44,022$14.57M0.0%-1.1%0.033%
5/14/2026Modern Wealth Management LLC696$229K0.0%N/A0.001%
5/14/2026Capula Management Ltd13,115$4.34M0.0%-0.5%0.010%
5/14/2026Bank of Nova Scotia7,798$2.58M0.0%+0.6%0.006%
5/14/2026Lido Advisors LLC1,180$390K0.0%+64.6%0.001%
5/13/2026Cetera Investment Advisers23,173$7.67M0.0%+32.0%0.017%
5/13/2026Prestige Wealth Management Group LLC226$75K0.0%+30.6%0.000%
5/13/2026NewEdge Wealth LLC9,201$3.04M0.0%+22.2%0.007%
5/13/2026CI Investments Inc.3,611$1.20M0.0%-40.3%0.003%
5/13/2026First Trust Advisors LP382,701$126.62M0.1%+48.9%0.287%
5/12/2026Westpac Banking Corp2,452$811K0.1%-53.8%0.002%
5/12/2026Himension Capital Singapore PTE. LTD.13,169$4.36M0.3%+29.3%0.010%
5/8/2026PNC Financial Services Group Inc.12,322$4.08M0.0%-2.8%0.009%
5/8/2026Andra AP fonden86,697$28.69M0.4%+78.6%0.065%
5/7/2026Dimensional Fund Advisors LP384,205$127.07M0.0%+27.3%0.288%
5/7/2026Parallel Advisors LLC891$295K0.0%+7.9%0.001%
5/7/2026AlphaCentric Advisors LLC1,370$453K0.5%+5.8%0.001%
5/7/2026KBC Group NV20,524$6.79M0.0%-94.1%0.015%
5/7/2026S&CO Inc.7,400$2.45M0.2%-9.8%0.006%
5/7/2026SEB Asset Management AB30,153$9.98M0.0%N/A0.023%
5/7/2026Swiss National Bank387,720$128.29M0.1%+7.9%0.290%
5/7/2026AIA Group Ltd7,742$2.56M0.0%-61.6%0.006%
5/7/2026Mediolanum International Funds Ltd45,119$14.26M0.2%+6.2%0.034%
5/6/2026California Public Employees Retirement System227,997$75.44M0.0%-3.8%0.171%
5/6/2026Assetmark Inc.14,207$4.70M0.0%-11.4%0.011%
5/6/2026Bessemer Group Inc.122$40K0.0%-46.3%0.000%
5/6/2026Allspring Global Investments Holdings LLC281,793$92.63M0.2%+1.1%0.211%
5/6/2026Independent Financial Group LLC630$208K0.0%N/A0.000%
5/6/2026Aware Super Pty Ltd as trustee of Aware Super5,473$1.81M0.0%N/A0.004%
5/5/2026Wealthfront Advisers LLC11,587$3.83M0.0%-36.5%0.009%
5/5/2026Marks Group Wealth Management Inc1,650$546K0.1%N/A0.001%
5/5/2026Illinois Municipal Retirement Fund24,295$8.04M0.1%-5.7%0.018%
5/5/2026MASTERINVEST Kapitalanlage GmbH1,179$390K0.0%N/A0.001%
5/5/2026Sanctuary Advisors LLC5,839$1.93M0.0%-10.4%0.004%
5/4/2026Principal Financial Group Inc.5,649$1.87M0.0%+61.5%0.004%
5/4/2026J. Safra Sarasin Holding AG3,230$1.07M0.0%-64.7%0.002%
5/4/2026Teachers Retirement System of The State of Kentucky30,696$10.16M0.1%-2.9%0.023%
5/2/2026Anchor Investment Management LLC2,819$933K0.1%+4.6%0.002%
5/1/2026Fifth Third Bancorp9,568$3.17M0.0%+7,433.9%0.007%
5/1/2026Sequoia Financial Advisors LLC4,560$1.51M0.0%+8.3%0.003%
4/30/2026First Horizon Corp113$37K0.0%-30.7%0.000%
4/30/2026Kestra Advisory Services LLC1,184$392K0.0%-36.0%0.001%
4/30/2026Sumitomo Mitsui Trust Group Inc.314,417$104.03M0.1%-4.1%0.236%
4/30/2026Resona Asset Management Co. Ltd.39,832$13.09M0.1%+1.5%0.030%
4/30/2026Capstone Capital Management Ltd1,767$585K0.6%-23.2%0.001%
4/29/2026Burney Co.3,411$1.13M0.0%-25.6%0.003%
4/29/2026Swedbank AB62,215$20.59M0.0%+0.4%0.047%
4/28/2026Whittier Trust Co. of Nevada Inc.219$72K0.0%+167.1%0.000%
4/28/2026Ascentis Independent Advisors194$64K0.0%N/A0.000%
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4/28/2026Kepler Cheuvreux Suisse SA1,713$567K0.0%N/A0.001%
4/28/2026QRG Capital Management Inc.2,277$754K0.0%-3.6%0.002%
4/27/2026HB Wealth Management LLC1,995$660K0.0%+17.3%0.001%
4/27/2026Sierra Summit Advisors LLC30,298$10.03M1.5%N/A0.023%
4/27/2026Y Intercept Hong Kong Ltd11,361$3.76M0.1%N/A0.009%
4/27/2026Bronte Capital Management Pty Ltd.37,245$12.32M1.3%-4.2%0.028%
4/27/2026Leonteq Securities AG248$82K0.0%+136.2%0.000%
4/27/2026Fjarde AP Fonden Fourth Swedish National Pension Fund48,705$16.12M0.1%+61.2%0.037%
4/27/2026Elevation Point Wealth Partners LLC1,263$418K0.0%N/A0.001%
4/27/2026Fideuram Intesa Sanpaolo Private Banking S.P.A.37,025$12.25M0.4%+80.8%0.028%


ALNY Institutional Ownership - Frequently Asked Questions

During the previous two years, 834 institutional investors and hedge funds held shares of Alnylam Pharmaceuticals. The most heavily invested institutionals were Capital World Investors ($6.48B), Vanguard Group Inc. ($5.39B), Capital Research Global Investors ($2.70B), Geode Capital Management LLC ($1.06B), Baillie Gifford & Co. ($1.03B), Norges Bank ($895.82M), and Dodge & Cox ($781.15M).Learn more on Alnylam Pharmaceuticals' institutional investors.

92.97% of Alnylam Pharmaceuticals' stock is owned by institutional investors. Learn more on ALNY's institutional investor holdings.

Of the 751 institutional investors that purchased Alnylam Pharmaceuticals' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Norges Bank ($6.74M), Regeneron Pharmaceuticals Inc. ($4.44M), Groupama Asset Managment ($2.51M), Capital Research Global Investors ($1.76M), Arrowstreet Capital Limited Partnership ($1.35M), T. Rowe Price Investment Management Inc. ($1.28M), and AQR Capital Management LLC ($1.18M).

Institutional investors have bought a total of 20,073,233 shares in the last 24 months. This purchase volume represents approximately $8.11B in transactions.

Of the 360 institutional investors that sold Alnylam Pharmaceuticals' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Deerfield Management Company L.P. ($110.08M), Invesco Ltd. ($45.50M), Ameriprise Financial Inc. ($4.47M), Groupama Asset Managment ($4.00M), Amundi ($3.21M), Regeneron Pharmaceuticals Inc. ($3.05M), and Man Group plc ($2.85M).

Institutional investors have sold a total of 202,476,235 shares in the last 24 months. This volume of shares sold represents approximately $90.53B in transactions.



This page (NASDAQ:ALNY) was last updated on 7/14/2026 by MarketBeat.com Staff.
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