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Alnylam Pharmaceuticals (ALNY) Institutional Ownership

Alnylam Pharmaceuticals logo
$269.21 -11.75 (-4.18%)
Closing price 03/26/2025 04:00 PM Eastern
Extended Trading
$275.20 +5.99 (+2.22%)
As of 03/26/2025 07:19 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)
344
Total
Institutional Inflows
(last 12 months)
$3.96B
Number of
Institutional Sellers
(last 12 months)
184
Total
Institutional Outflows
(last 12 months)
$3.82B
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ALNY Institutional Buying and Selling by Quarter

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Alnylam Pharmaceuticals Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
3/18/2025 California State Teachers Retirement System196,362$46.21M0.1%+2.6%0.152%
3/17/2025 Wealth Enhancement Advisory Services LLC12,566$2.96M0.0%+94.7%0.010%
3/14/2025Lansforsakringar Fondforvaltning AB publ 42,544$10.01M0.1%N/A0.033%
3/7/2025 Bannerman Wealth Management Group LLC1,391$327K0.3%N/A0.001%
3/4/2025 Siemens Fonds Invest GmbH3,245$764K0.0%+137.7%0.003%
2/28/2025 Park Square Financial Group LLC121$28K0.0%N/A0.000%
2/28/2025 Universal Beteiligungs und Servicegesellschaft mbH124,360$29.26M0.1%N/A0.096%
2/20/2025 Mackenzie Financial Corp8,859$2.09M0.0%-55.0%0.007%
2/19/2025 GF Fund Management CO. LTD.2,708$637K0.0%N/A0.002%
2/19/2025 Public Employees Retirement System of Ohio44,257$10.41M0.0%-8.6%0.034%
2/18/2025 GTS Securities LLC1,163$274K0.0%-83.2%0.001%
2/18/2025 Orion Capital Management LLC3,340$786K0.3%-2.5%0.003%
2/18/2025 Focus Partners Advisor Solutions LLC862$203K0.0%N/A0.001%
2/17/2025 USS Investment Management Ltd26,366$6.21M0.0%-19.8%0.020%
2/17/2025 Voloridge Investment Management LLC16,776$3.95M0.0%-91.4%0.013%
2/17/2025 Worldquant Millennium Advisors LLC150,191$35.34M0.2%+156.6%0.116%
2/17/2025 Zurich Insurance Group Ltd FI27,977$6.58M0.1%N/A0.022%
2/17/2025 Vident Advisory LLC1,327$312K0.0%+21.2%0.001%
2/17/2025 Soleus Capital Management L.P.76,800$18.07M1.1%+29.3%0.060%
2/17/2025 Two Sigma Advisers LP78,800$18.54M0.0%-23.6%0.061%
2/17/2025 Two Sigma Investments LP107,117$25.21M0.1%+459.4%0.083%
2/17/2025 Tidal Investments LLC13,188$3.10M0.0%-35.8%0.010%
2/17/2025 Tema Etfs LLC16,323$3.84M1.6%N/A0.013%
2/17/2025 Siemens Fonds Invest GmbH3,245$764K0.0%+137.7%0.003%
2/17/2025 Shell Asset Management Co.5,992$1.41M0.1%-3.3%0.005%
2/17/2025 Silvercrest Asset Management Group LLC4,891$1.15M0.0%N/A0.004%
2/17/2025 Rafferty Asset Management LLC52,817$12.43M0.0%-17.3%0.041%
2/17/2025 ProShare Advisors LLC6,110$1.44M0.0%-19.5%0.005%
2/17/2025 Quantinno Capital Management LP4,556$1.07M0.0%+35.4%0.004%
2/17/2025 Parkman Healthcare Partners LLC38,672$9.10M1.2%+51.7%0.030%
2/17/2025 Nissay Asset Management Corp Japan ADV15,947$3.80M0.0%+2.1%0.012%
2/17/2025 OMERS ADMINISTRATION Corp5,252$1.24M0.0%+20.4%0.004%
2/17/2025 Orbimed Advisors LLC415,600$97.80M2.2%+66.0%0.322%
2/17/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.14,731$3.47M0.0%-42.9%0.011%
2/17/2025 LMR Partners LLP11,901$2.80M0.0%-82.4%0.009%
2/17/2025 Laird Norton Wetherby Wealth Management LLC1,147$270K0.0%-15.1%0.001%
2/17/2025 Integral Health Asset Management LLC45,000$10.59M0.9%+80.0%0.035%
2/17/2025 Investment Management Corp of Ontario7,099$1.67M0.1%+0.6%0.006%
2/17/2025 Janus Henderson Group PLC210,080$49.44M0.0%-4.2%0.163%
2/17/2025 Gotham Asset Management LLC10,924$2.57M0.0%-37.8%0.008%
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2/17/2025 Graham Capital Management L.P.2,350$553K0.0%-34.9%0.002%
2/17/2025 Focus Partners Wealth4,427$1.04M0.0%+245.1%0.003%
2/17/2025 Ellevest Inc.1,424$335K0.0%-24.0%0.001%
2/17/2025 Ethic Inc.4,886$1.15M0.0%+22.9%0.004%
2/17/2025 Ensign Peak Advisors Inc76,464$17.99M0.0%-5.1%0.059%
2/17/2025 FORA Capital LLC12,698$2.99M0.3%N/A0.010%
2/17/2025 Frontier Capital Management Co. LLC104,718$24.64M0.2%-5.9%0.081%
2/17/2025 Driehaus Capital Management LLC33,480$7.88M0.1%+3.5%0.026%
2/17/2025 Colonial Trust Co SC150$35K0.0%N/A0.000%
2/17/2025 Corton Capital Inc.946$223K0.1%N/A0.001%
2/17/2025 Casdin Capital LLC140,000$32.94M2.2%-17.6%0.109%
2/17/2025 Cetera Investment Advisers4,770$1.12M0.0%+66.3%0.004%
2/17/2025 BOKF NA381$91K0.0%+592.7%0.000%
2/17/2025 Bridger Management LLC41,182$9.69M5.2%+11.2%0.032%
2/17/2025 Brevan Howard Capital Management LP1,333$314K0.0%+3.4%0.001%
2/17/2025 Captrust Financial Advisors6,414$1.51M0.0%+32.7%0.005%
2/17/2025 Beck Bode LLC56,017$13.18M2.4%N/A0.043%
2/17/2025 Bellevue Group AG770,268$181.25M3.5%-4.8%0.597%
2/14/2025 Mercer Global Advisors Inc. ADV2,600$612K0.0%N/A0.002%
2/14/2025 Itau Unibanco Holding S.A.171$40K0.0%-44.5%0.000%
2/14/2025 Caisse DE Depot ET Placement DU Quebec10,018$2.36M0.0%-60.4%0.008%
2/14/2025 Comerica Bank13,991$3.29M0.0%+631.7%0.011%
2/14/2025 Voleon Capital Management LP37,181$8.75M0.6%N/A0.029%
2/14/2025 Utah Retirement Systems21,325$5.02M0.1%+1.9%0.017%
2/14/2025 Schonfeld Strategic Advisors LLC127,000$29.88M0.2%+355.7%0.098%
2/14/2025 AQR Capital Management LLC813,356$191.39M0.2%+60.9%0.631%
2/14/2025 Northern Trust Corp878,860$206.81M0.0%+19.6%0.681%
2/14/2025 The Manufacturers Life Insurance Company 109,102$25.67M0.0%-43.0%0.085%
2/14/2025 Beacon Pointe Advisors LLC935$220K0.0%-32.0%0.001%
2/14/2025 Public Employees Retirement Association of Colorado13,073$3.08M0.0%-2.3%0.010%
2/14/2025 Artia Global Partners LP56,400$13.27M4.7%+61.1%0.044%
2/14/2025 Aquatic Capital Management LLC40,552$9.54M0.3%+98.7%0.031%
2/14/2025 Susquehanna Fundamental Investments LLC56,585$13.32M0.2%N/A0.044%
2/14/2025 Virtus ETF Advisers LLC1,426$336K0.1%-30.7%0.001%
2/14/2025 Gilder Gagnon Howe & Co. LLC365,463$86.00M0.9%-4.8%0.283%
2/14/2025 Coldstream Capital Management Inc.1,113$262K0.0%-8.1%0.001%
2/14/2025 Two Sigma Securities LLC1,117$263K0.0%+272.3%0.001%
2/14/2025 Kovitz Investment Group Partners LLC2,633$620K0.0%+8.3%0.002%
2/14/2025 Integrated Wealth Concepts LLC2,512$591K0.0%+7.5%0.002%
2/14/2025 Banco Bilbao Vizcaya Argentaria S.A.22,154$5.21M0.1%+1.9%0.017%
2/14/2025 Adage Capital Partners GP L.L.C.93,056$21.90M0.0%-19.8%0.072%
2/14/2025 T. Rowe Price Investment Management Inc.4,384,449$1.03B0.6%+39.7%3.399%
2/14/2025 Price T Rowe Associates Inc. MD3,319,385$781.09M0.1%-3.8%2.574%
2/14/2025 Hsbc Holdings PLC61,582$14.52M0.0%+8.3%0.048%
2/14/2025 Rock Springs Capital Management LP256,200$60.29M2.3%+2.5%0.199%
2/14/2025 J. Safra Sarasin Holding AG19,142$4.50M0.1%+69.8%0.015%
2/14/2025 Stifel Financial Corp10,017$2.36M0.0%+71.8%0.008%
2/14/2025 Tower Research Capital LLC TRC 5,381$1.27M0.0%+894.6%0.004%
2/14/2025 Mirabella Financial Services LLP10,539$2.48M0.2%N/A0.008%
2/14/2025 MML Investors Services LLC10,738$2.53M0.0%+248.0%0.008%
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2/14/2025 Ossiam2,427$571K0.0%+44.9%0.002%
2/14/2025 BI Asset Management Fondsmaeglerselskab A S11,755$2.77M0.0%+37.9%0.009%
2/14/2025 Capital International Inc. CA 105,085$24.73M0.3%-16.1%0.081%
2/14/2025 Capital Research Global Investors6,968,513$1.64B0.3%+32.9%5.403%
2/14/2025 Capital World Investors16,600,525$3.91B0.6%+0.6%12.871%
2/14/2025 Dimensional Fund Advisors LP333,661$78.52M0.0%+10.7%0.259%
2/14/2025 First Trust Advisors LP327,782$77.13M0.1%+14.8%0.254%
2/14/2025 Capital International Ltd. CA80,282$18.89M0.8%-20.1%0.062%
2/14/2025 Capital Group Investment Management PTE. LTD.17,171$4.04M0.8%-19.6%0.013%
2/14/2025 Capital Group Private Client Services Inc.41,525$9.77M0.1%-2.2%0.032%
(Data available from 1/1/2016 forward)

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ALNY Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of ALNY shares?

During the previous two years, 553 institutional investors and hedge funds held shares of Alnylam Pharmaceuticals. The most heavily invested institutionals were Capital World Investors ($3.91B), Vanguard Group Inc. ($3.00B), FMR LLC ($2.64B), Capital Research Global Investors ($1.64B), BlackRock Inc. ($1.59B), 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 470 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. ($1.25M), Capital International Investors ($1.20M), Vanguard Group Inc. ($466.34K), and AQR Capital Management LLC ($438.18K).

How much institutional buying is happening at Alnylam Pharmaceuticals?

Institutional investors have bought a total of 25,605,012 shares in the last 24 months. This purchase volume represents approximately $5.57B in transactions.

Which Alnylam Pharmaceuticals major shareholders have been selling company stock?

Of the 275 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. ($5.37M), New York State Common Retirement Fund ($3.74M), Capital World Investors ($3.74M), Capital International Investors ($2.55M), Avoro Capital Advisors LLC ($811.11K), Dodge & Cox ($778.52K), and Massachusetts Financial Services Co. MA ($575.99K).

How much institutional selling is happening at Alnylam Pharmaceuticals?

Institutional investors have sold a total of 24,261,964 shares in the last 24 months. This volume of shares sold represents approximately $5.21B in transactions.


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This page (NASDAQ:ALNY) was last updated on 3/27/2025 by MarketBeat.com Staff
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