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Alnylam Pharmaceuticals (ALNY) Institutional Ownership

Alnylam Pharmaceuticals logo
$302.46 -1.54 (-0.51%)
Closing price 06/10/2025 04:00 PM Eastern
Extended Trading
$301.88 -0.57 (-0.19%)
As of 06/10/2025 07:22 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.

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

Current
Institutional Ownership
Percentage
92.97%
Number of
Institutional Buyers
(last 12 months)
375
Total
Institutional Inflows
(last 12 months)
$4.62B
Number of
Institutional Sellers
(last 12 months)
215
Total
Institutional Outflows
(last 12 months)
$3.87B
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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
5/28/2025 Strs Ohio28,817$7.78M0.0%N/A0.022%
5/21/2025 Acadian Asset Management LLC8,977$2.42M0.0%-46.2%0.007%
5/21/2025 Geneos Wealth Management Inc.222$60K0.0%+372.3%0.000%
5/21/2025 IFM Investors Pty Ltd23,850$6.44M0.1%+0.6%0.018%
5/20/2025 Intech Investment Management LLC5,898$1.59M0.0%-22.1%0.005%
5/20/2025 Focus Partners Wealth4,218$1.14M0.0%-4.7%0.003%
5/20/2025 Plato Investment Management Ltd4,659$1.27M0.1%-16.0%0.004%
5/19/2025 Bayforest Capital Ltd306$83K0.0%+14.6%0.000%
5/19/2025 SCS Capital Management LLC171,077$46.19M0.6%N/A0.131%
5/19/2025 UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC736,111$198.77M0.1%-65.7%0.565%
5/16/2025 Woodline Partners LP156,464$42.25M0.3%N/A0.120%
5/16/2025 Empowered Funds LLC5,901$1.59M0.0%-22.7%0.005%
5/16/2025 Ascent Group LLC749$202K0.0%N/A0.001%
5/16/2025 Voleon Capital Management LP 11,914$3.22M0.3%-68.0%0.009%
5/16/2025 Parkman Healthcare Partners LLC68,938$18.62M2.2%+78.3%0.053%
5/16/2025 Nissay Asset Management Corp Japan ADV16,214$4.38M0.0%+1.7%0.012%
5/16/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.13,953$3.76M0.0%-5.3%0.011%
5/16/2025 Integrated Wealth Concepts LLC2,739$740K0.0%+9.0%0.002%
5/16/2025 Jacobs Levy Equity Management Inc.152,970$41.31M0.2%N/A0.117%
5/16/2025 Edmond DE Rothschild Holding S.A.318$86K0.0%+18.2%0.000%
5/16/2025 EFG Asset Management North America Corp.24,691$6.67M1.1%-7.3%0.019%
5/16/2025 Eventide Asset Management LLC166,450$44.94M0.9%-30.8%0.128%
5/16/2025 Cinctive Capital Management LP24,862$6.71M0.5%+36.3%0.019%
5/16/2025 Bridger Management LLC34,975$9.44M4.7%-15.1%0.027%
5/16/2025 AQR Capital Management LLC828,344$217.03M0.2%+1.8%0.635%
5/16/2025 Advisors Asset Management Inc.5,851$1.58M0.0%+3.6%0.004%
5/16/2025 Adage Capital Partners GP L.L.C.282,184$76.20M0.1%+203.2%0.216%
5/15/2025 Federation des caisses Desjardins du Quebec9,422$2.55M0.0%+3.8%0.007%
5/15/2025 Palo Alto Investors LP83,488$22.54M4.3%-40.7%0.064%
5/15/2025 EP Wealth Advisors LLC998$269K0.0%N/A0.001%
5/15/2025 Focus Partners Advisor Solutions LLC2,724$736K0.0%+216.0%0.002%
5/15/2025 Point72 Europe London LLP15,958$4.31M0.3%N/A0.012%
5/15/2025 Graham Capital Management L.P.1,910$516K0.0%-18.7%0.001%
5/15/2025 Panagora Asset Management Inc.96,804$26.14M0.1%+74.5%0.074%
5/15/2025 Orbis Allan Gray Ltd1,634,923$441.46M2.5%+11.0%1.254%
5/15/2025 Vident Advisory LLC2,667$720K0.0%+101.0%0.002%
5/15/2025 Kodai Capital Management LP21,159$5.71M0.2%N/A0.016%
5/15/2025 The Manufacturers Life Insurance Company 98,869$26.69M0.0%-9.4%0.076%
5/15/2025 Driehaus Capital Management LLC57,128$15.43M0.1%+70.6%0.044%
5/15/2025 Canada Pension Plan Investment Board60,532$16.35M0.0%-65.2%0.046%
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5/15/2025 Iron Triangle Partners LP65,409$17.66M2.8%N/A0.050%
5/15/2025 Tema Etfs LLC6,475$1.75M0.5%-60.3%0.005%
5/15/2025 Lansforsakringar Fondforvaltning AB publ 42,303$11.42M0.1%-0.6%0.032%
5/15/2025 OMERS ADMINISTRATION Corp4,517$1.22M0.0%-14.0%0.003%
5/14/2025 B. Metzler seel. Sohn & Co. AG3,233$873K0.0%-1.4%0.002%
5/14/2025 Ieq Capital LLC44,014$11.89M0.1%+13.4%0.034%
5/14/2025 Rafferty Asset Management LLC44,585$12.04M0.1%-15.6%0.034%
5/14/2025 FORA Capital LLC8,624$2.33M0.2%-32.1%0.007%
5/14/2025 Caisse DE Depot ET Placement DU Quebec23,763$6.42M0.0%+137.2%0.018%
5/14/2025 Corebridge Financial Inc.2,128$575K0.0%-3.7%0.002%
5/14/2025 Comerica Bank17,253$4.66M0.0%+23.3%0.013%
5/14/2025 Freedom Investment Management Inc.1,028$278K0.0%-12.1%0.001%
5/14/2025 Dodge & Cox3,351,762$905.04M0.5%-5.3%2.571%
5/14/2025 Jump Financial LLC15,717$4.24M0.1%+3.8%0.012%
5/14/2025 SVB Wealth LLC100$27K0.0%N/A0.000%
5/14/2025 Smartleaf Asset Management LLC895$240K0.0%+19.8%0.001%
5/14/2025 Northwestern Mutual Wealth Management Co.525$142K0.0%+10.3%0.000%
5/14/2025 BRITISH COLUMBIA INVESTMENT MANAGEMENT Corp24,666$6.66M0.0%+0.3%0.019%
5/14/2025 Allstate Corp4,701$1.27M0.0%+23.8%0.004%
5/14/2025 1832 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%
5/14/2025 Price T Rowe Associates Inc. MD3,505,168$946.47M0.1%+5.6%2.688%
5/14/2025 T. Rowe Price Investment Management Inc.4,418,145$1.19B0.8%+0.8%3.388%
5/14/2025 EntryPoint Capital LLC2,364$638K0.3%-7.0%0.002%
5/14/2025 Credit Agricole S A3,287$888K0.0%-17.7%0.003%
5/14/2025 Banco Bilbao Vizcaya Argentaria S.A.22,763$6.15M0.1%+2.7%0.017%
5/14/2025 Groupama Asset Managment1,540,139$415.87M3.3%+0.8%1.181%
5/14/2025 BI Asset Management Fondsmaeglerselskab A S5,342$1.44M0.0%-54.6%0.004%
5/14/2025 Hsbc Holdings PLC61,265$16.48M0.0%-0.5%0.047%
5/14/2025 Korea Investment CORP105,759$28.56M0.1%+13.0%0.081%
5/13/2025 Northern Trust Corp865,020$233.57M0.0%-1.6%0.663%
5/13/2025 Algert Global LLC1,150$311K0.0%N/A0.001%
5/13/2025 Raymond James Financial Inc.268,970$72.63M0.0%-3.1%0.206%
5/13/2025 State of New Jersey Common Pension Fund D43,745$11.81M0.1%-7.9%0.034%
5/13/2025 American Century Companies Inc.1,760,435$475.35M0.3%+9.8%1.350%
5/13/2025 Ethic Inc.2,043$523K0.0%-58.2%0.002%
5/13/2025 Aberdeen Group plc215,385$57.05M0.1%+12.9%0.165%
5/13/2025 Liontrust Investment Partners LLP18,880$5.10M0.1%+34.6%0.014%
5/13/2025 Kovitz Investment Group Partners LLC2,349$634K0.0%-10.8%0.002%
5/13/2025 Fjarde AP Fonden Fourth Swedish National Pension Fund26,915$7.27M0.1%-7.6%0.021%
5/13/2025 E Fund Management Co. Ltd.12,708$3.43M0.2%+3.4%0.010%
5/13/2025 Caitong International Asset Management Co. Ltd618$167K0.1%+3,762.5%0.000%
5/13/2025 Gulf International Bank UK Ltd7,364$1.99M0.1%-24.5%0.006%
5/13/2025 S Bank Fund Management Ltd1,760$475K0.1%N/A0.001%
5/13/2025 National Pension Service173,659$46.89M0.0%+8.9%0.133%
5/13/2025 Prudential PLC2,047$553K0.0%-52.2%0.002%
5/13/2025 Resona Asset Management Co. Ltd.38,920$10.50M0.1%+6.2%0.030%
5/13/2025 Westpac Banking Corp5,073$1.37M0.1%-52.0%0.004%
5/13/2025 HighTower Advisors LLC113,857$30.74M0.0%-1.3%0.087%
5/12/2025 AIA Group Ltd26,491$7.15M0.2%+15.9%0.020%
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5/12/2025 Motley Fool Asset Management LLC6,029$1.63M0.1%+217.5%0.005%
5/12/2025 Covestor Ltd415$112K0.1%-9.4%0.000%
5/12/2025 Townsquare Capital LLC1,059$286K0.0%+9.6%0.001%
5/12/2025 Zions Bancorporation National Association UT646$174K0.0%N/A0.000%
5/12/2025 Forsta AP Fonden25,800$6.97M0.1%-52.9%0.020%
5/12/2025 Swiss National Bank364,200$98.34M0.1%+0.4%0.279%
5/12/2025 Mitsubishi UFJ Asset Management Co. Ltd.105,879$28.59M0.0%+11.8%0.081%
5/12/2025 Maryland State Retirement & Pension System6,021$1.63M0.0%-13.9%0.005%
5/9/2025 Ontario Teachers Pension Plan Board1,345$363K0.0%-13.1%0.001%
5/9/2025 Altfest L J & Co. Inc.1,050$284K0.0%N/A0.001%
(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, 576 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 ALNY's 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 490 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 27,536,370 shares in the last 24 months. This purchase volume represents approximately $6.18B in transactions.

Which Alnylam Pharmaceuticals major shareholders have been selling company stock?

Of the 290 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: Baillie Gifford & Co. ($4.98M), Capital World Investors ($3.74M), New York State Common Retirement Fund ($3.74M), Capital International Investors ($2.55M), UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC ($1.41M), Avoro Capital Advisors LLC ($811.11K), and Massachusetts Financial Services Co. MA ($575.99K).

How much institutional selling is happening at Alnylam Pharmaceuticals?

Institutional investors have sold a total of 24,567,402 shares in the last 24 months. This volume of shares sold represents approximately $5.48B in transactions.



This page (NASDAQ:ALNY) was last updated on 6/11/2025 by MarketBeat.com Staff
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