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Alnylam Pharmaceuticals (ALNY) Institutional Ownership

Alnylam Pharmaceuticals logo
$320.53 -4.16 (-1.28%)
Closing price 04:00 PM Eastern
Extended Trading
$319.14 -1.39 (-0.43%)
As of 05:36 PM 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 Polygon.io. Learn more.
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Institutional Ownership Changes (13F Filings) for Alnylam Pharmaceuticals (NASDAQ:ALNY)

Current
Institutional Ownership
Percentage
92.97%
Number of
Institutional Buyers
(last 12 months)
379
Total
Institutional Inflows
(last 12 months)
$4.61B
Number of
Institutional Sellers
(last 12 months)
222
Total
Institutional Outflows
(last 12 months)
$3.88B
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ALNY Institutional Buying and Selling by Quarter

Alnylam Pharmaceuticals Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
7/18/2025Robeco Institutional Asset Management B.V.96,368$31.43M0.1%-6.9%0.074%
7/18/2025LBP AM SA8,322$2.71M0.0%N/A0.006%
7/18/2025Truist Financial Corp4,007$1.31M0.0%+10.6%0.003%
7/17/2025 HB Wealth Management LLC869$284K0.0%+12.7%0.001%
7/17/2025 V Square Quantitative Management LLC1,692$552K0.1%+356.1%0.001%
7/17/2025 GraniteShares Advisors LLC1,899$619K0.4%-10.0%0.001%
7/16/2025 Signaturefd LLC1,906$622K0.0%+8.6%0.001%
7/16/2025 ST Germain D J Co. Inc.8,994$2.93M0.1%N/A0.007%
7/16/2025 Banque Pictet & Cie SA1,391$454K0.0%-6.2%0.001%
7/16/2025 Steph & Co.185$60K0.0%N/A0.000%
7/16/2025 TB Alternative Assets Ltd.1,259$411K0.1%-86.3%0.001%
7/15/2025 Beacon Investment Advisory Services Inc.1,290$421K0.0%-23.6%0.001%
7/15/2025 Public Employees Retirement System of Ohio38,752$12.64M0.0%-2.3%0.030%
7/15/2025 Sara Bay Financial1,450$473K0.2%+45.0%0.001%
7/15/2025 Cigna Investments Inc. New1,245$406K0.1%-4.0%0.001%
7/15/2025 Bannerman Wealth Management Group LLC2,164$706K0.5%-20.7%0.002%
7/14/2025 GAMMA Investing LLC726$237K0.0%+17.9%0.001%
7/14/2025 U.S. Capital Wealth Advisors LLC52,027$16.97M0.5%-7.1%0.040%
7/14/2025 Park Avenue Securities LLC2,085$680K0.0%N/A0.002%
7/14/2025 Sowell Financial Services LLC616$201K0.0%N/A0.000%
7/11/2025 Farther Finance Advisors LLC379$123K0.0%+57.3%0.000%
7/11/2025 Diversified Trust Co1,098$358K0.0%-25.9%0.001%
7/11/2025 Assenagon Asset Management S.A.17,686$5.77M0.0%+176.1%0.014%
7/11/2025 IFM Investors Pty Ltd25,358$8.27M0.1%+6.3%0.019%
7/10/2025 Exchange Traded Concepts LLC2,806$915K0.0%-24.5%0.002%
7/10/2025 Fulton Bank N.A.1,421$463K0.0%+3.3%0.001%
7/10/2025 Wealth Enhancement Advisory Services LLC5,118$1.70M0.0%-64.5%0.004%
7/10/2025 Wedmont Private Capital1,761$565K0.0%+10.6%0.001%
7/10/2025 Swedbank AB64,315$20.97M0.0%+7.2%0.049%
7/10/2025 Sumitomo Mitsui DS Asset Management Company Ltd14,808$4.83M0.0%+14.3%0.011%
7/9/2025 Pallas Capital Advisors LLC2,570$838K0.0%-61.3%0.002%
7/9/2025 Gateway Investment Advisers LLC5,889$1.92M0.0%-10.0%0.005%
7/9/2025 MassMutual Private Wealth & Trust FSB196$64K0.0%+36.1%0.000%
7/8/2025 E. Ohman J or Asset Management AB5,700$1.86M0.0%-1.7%0.004%
7/8/2025 Parallel Advisors LLC817$266K0.0%-5.2%0.001%
6/26/2025AG2R LA Mondiale Gestion D Actifs5,825$1.57M0.1%N/A0.004%
6/23/2025 Swedbank AB59,993$16.20M0.0%+8.0%0.046%
5/28/2025Strs Ohio28,817$7.78M0.0%N/A0.022%
5/21/2025Acadian Asset Management LLC8,977$2.42M0.0%-46.2%0.007%
5/21/2025Geneos Wealth Management Inc.222$60K0.0%+372.3%0.000%
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5/21/2025 IFM Investors Pty Ltd23,850$6.44M0.1%+0.6%0.018%
5/20/2025Intech Investment Management LLC5,898$1.59M0.0%-22.1%0.005%
5/20/2025Focus Partners Wealth4,218$1.14M0.0%-4.7%0.003%
5/20/2025Plato Investment Management Ltd4,659$1.27M0.1%-16.0%0.004%
5/19/2025Bayforest Capital Ltd306$83K0.0%+14.6%0.000%
5/19/2025SCS Capital Management LLC171,077$46.19M0.6%N/A0.131%
5/19/2025UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC736,111$198.77M0.1%-65.7%0.565%
5/16/2025Woodline Partners LP156,464$42.25M0.3%N/A0.120%
5/16/2025Empowered Funds LLC5,901$1.59M0.0%-22.7%0.005%
5/16/2025Ascent Group LLC749$202K0.0%N/A0.001%
5/16/2025Voleon Capital Management LP 11,914$3.22M0.3%-68.0%0.009%
5/16/2025Parkman Healthcare Partners LLC68,938$18.62M2.2%+78.3%0.053%
5/16/2025Nissay Asset Management Corp Japan ADV16,214$4.38M0.0%+1.7%0.012%
5/16/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.13,953$3.76M0.0%-5.3%0.011%
5/16/2025Integrated Wealth Concepts LLC2,739$740K0.0%+9.0%0.002%
5/16/2025Jacobs Levy Equity Management Inc.152,970$41.31M0.2%N/A0.117%
5/16/2025Edmond DE Rothschild Holding S.A.318$86K0.0%+18.2%0.000%
5/16/2025EFG Asset Management North America Corp.24,691$6.67M1.1%-7.3%0.019%
5/16/2025Eventide Asset Management LLC166,450$44.94M0.9%-30.8%0.128%
5/16/2025Cinctive Capital Management LP24,862$6.71M0.5%+36.3%0.019%
5/16/2025Bridger Management LLC34,975$9.44M4.7%-15.1%0.027%
5/16/2025AQR Capital Management LLC828,344$217.03M0.2%+1.8%0.635%
5/16/2025Advisors Asset Management Inc.5,851$1.58M0.0%+3.6%0.004%
5/16/2025Adage Capital Partners GP L.L.C.282,184$76.20M0.1%+203.2%0.216%
5/15/2025Federation des caisses Desjardins du Quebec9,422$2.55M0.0%+3.8%0.007%
5/15/2025Palo Alto Investors LP83,488$22.54M4.3%-40.7%0.064%
5/15/2025EP Wealth Advisors LLC998$269K0.0%N/A0.001%
5/15/2025Focus Partners Advisor Solutions LLC2,724$736K0.0%+216.0%0.002%
5/15/2025Point72 Europe London LLP15,958$4.31M0.3%N/A0.012%
5/15/2025Graham Capital Management L.P.1,910$516K0.0%-18.7%0.001%
5/15/2025Panagora Asset Management Inc.96,804$26.14M0.1%+74.5%0.074%
5/15/2025Orbis Allan Gray Ltd1,634,923$441.46M2.5%+11.0%1.254%
5/15/2025Vident Advisory LLC2,667$720K0.0%+101.0%0.002%
5/15/2025Kodai Capital Management LP21,159$5.71M0.2%N/A0.016%
5/15/2025The Manufacturers Life Insurance Company 98,869$26.69M0.0%-9.4%0.076%
5/15/2025Driehaus Capital Management LLC57,128$15.43M0.1%+70.6%0.044%
5/15/2025Canada Pension Plan Investment Board60,532$16.35M0.0%-65.2%0.046%
5/15/2025Iron Triangle Partners LP65,409$17.66M2.8%N/A0.050%
5/15/2025Tema Etfs LLC6,475$1.75M0.5%-60.3%0.005%
5/15/2025Lansforsakringar Fondforvaltning AB publ 42,303$11.42M0.1%-0.6%0.032%
5/15/2025OMERS ADMINISTRATION Corp4,517$1.22M0.0%-14.0%0.003%
5/14/2025B. Metzler seel. Sohn & Co. AG3,233$873K0.0%-1.4%0.002%
5/14/2025Ieq Capital LLC44,014$11.89M0.1%+13.4%0.034%
5/14/2025Rafferty Asset Management LLC44,585$12.04M0.1%-15.6%0.034%
5/14/2025FORA Capital LLC8,624$2.33M0.2%-32.1%0.007%
5/14/2025Caisse DE Depot ET Placement DU Quebec23,763$6.42M0.0%+137.2%0.018%
5/14/2025Corebridge Financial Inc.2,128$575K0.0%-3.7%0.002%
5/14/2025Comerica Bank17,253$4.66M0.0%+23.3%0.013%
5/14/2025Freedom Investment Management Inc.1,028$278K0.0%-12.1%0.001%
5/14/2025Dodge & Cox3,351,762$905.04M0.5%-5.3%2.571%
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5/14/2025Jump Financial LLC15,717$4.24M0.1%+3.8%0.012%
5/14/2025SVB Wealth LLC100$27K0.0%N/A0.000%
5/14/2025Smartleaf Asset Management LLC895$240K0.0%+19.8%0.001%
5/14/2025Northwestern Mutual Wealth Management Co.525$142K0.0%+10.3%0.000%
5/14/2025BRITISH COLUMBIA INVESTMENT MANAGEMENT Corp24,666$6.66M0.0%+0.3%0.019%
5/14/2025Allstate Corp4,701$1.27M0.0%+23.8%0.004%
5/14/20251832 Asset Management L.P.144,045$38.90M0.0%N/A0.110%
5/14/2025 Kaufman Rossin Wealth LLC1,300$351K0.3%N/A0.001%
5/14/2025Price T Rowe Associates Inc. MD3,505,168$946.47M0.1%+5.6%2.688%
5/14/2025T. Rowe Price Investment Management Inc.4,418,145$1.19B0.8%+0.8%3.388%
(Data available from 1/1/2016 forward)

ALNY Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of ALNY shares?

During the previous two years, 583 institutional investors and hedge funds held shares of Alnylam Pharmaceuticals. The most heavily invested institutionals were Capital World Investors ($3.91B), Vanguard Group Inc. ($3.53B), Capital Research Global Investors ($1.64B), BlackRock Inc. ($1.59B), T. Rowe Price Investment Management Inc. ($1.19B), Wellington Management Group LLP ($1.14B), and Regeneron Pharmaceuticals Inc. ($1.05B).Learn more on Alnylam Pharmaceuticals' institutional investors.

What percentage of Alnylam Pharmaceuticals' stock is owned by institutional investors?

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

Which institutional investors have been buying Alnylam Pharmaceuticals' stock?

Of the 494 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 ($4.50M), Regeneron Pharmaceuticals Inc. ($4.44M), Capital Research Global Investors ($2.09M), T. Rowe Price Investment Management Inc. ($1.28M), Capital International Investors ($1.20M), Vanguard Group Inc. ($789.55K), and AQR Capital Management LLC ($453.17K).

How much institutional buying is happening at Alnylam Pharmaceuticals?

Institutional investors have bought a total of 18,950,927 shares in the last 24 months. This purchase volume represents approximately $4.61B in transactions.

Which of Alnylam Pharmaceuticals' major shareholders have been selling company stock?

Of the 222 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: New York State Common Retirement Fund ($3.74M), Baillie Gifford & Co. ($2.97M), Capital International Investors ($2.55M), UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC ($1.41M), Canada Pension Plan Investment Board ($284.33K), Dodge & Cox ($270.77K), and The Manufacturers Life Insurance Company ($238.16K).

How much institutional selling is happening at Alnylam Pharmaceuticals?

Institutional investors have sold a total of 15,034,509 shares in the last 24 months. This volume of shares sold represents approximately $3.88B in transactions.


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This page (NASDAQ:ALNY) was last updated on 7/18/2025 by MarketBeat.com Staff
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