Go Pro
→ Ready to give options a try? Your first trade (Ticker included) -INSIDE (From Base Camp Trading) (Ad)tc pixel Free ALNY Stock Alerts

Alnylam Pharmaceuticals (ALNY) Institutional Ownership

Alnylam Pharmaceuticals logo
$216.04 +10.52 (+5.12%)
As of 12:51 PM Eastern
This is a fair market value price provided by Massive. Learn more.
Compare

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

Current
Institutional Ownership
Percentage
92.97%
Number of
Institutional Buyers
(last 12 months)
573
Total
Institutional Inflows
(last 12 months)
$8.03B
Number of
Institutional Sellers
(last 12 months)
352
Total
Institutional Outflows
(last 12 months)
$90.50B
Get ALNY Insider Trade Alerts

Want to know when executives and insiders are buying or selling Alnylam Pharmaceuticals stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily.

Subscribe Now
SMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. By entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. Unsubscribe at any time by replying "STOP" to any text message that you receive from MarketBeat or by visiting our mailing preferences page. Read our full terms of service and privacy policy.
Skip Chart & View Institutional Buying and Selling Data

ALNY Institutional Buying and Selling by Quarter

Alnylam Pharmaceuticals Major Shareholders & Ownership History

Export
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%
5/18/2026 EverSource 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%
Buy this stock tomorrow (Ad)

Marc Chaikin, founder of Chaikin Analytics, is flagging a little-known company that just secured a partnership with Nvidia - one he believes positions it ahead of Tesla in the autonomous vehicle race. With a market-moving announcement expected on July 31st, Chaikin is urging investors to swap overpriced AI stocks for this under-the-radar name before markets open. He's also releasing a free Hotlist and Hitlist of buy and sell ideas for the second half of 2026.tc pixel

Get the ticker symbol and full details at no charge today
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%
5/7/2026 AlphaCentric 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%
5/7/2026 Mediolanum 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%
5/6/2026 Assetmark 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%
5/6/2026 Independent Financial Group LLC630$208K0.0%N/A0.000%
5/6/2026 Aware 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%
5/5/2026 Marks 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%
5/1/2026 Sequoia Financial Advisors LLC4,560$1.51M0.0%+8.3%0.003%
4/30/2026 First Horizon Corp113$37K0.0%-30.7%0.000%
4/30/2026 Kestra Advisory Services LLC1,184$392K0.0%-36.0%0.001%
4/30/2026 Sumitomo Mitsui Trust Group Inc.314,417$104.03M0.1%-4.1%0.236%
4/30/2026 Resona Asset Management Co. Ltd.39,832$13.09M0.1%+1.5%0.030%
4/30/2026 Capstone Capital Management Ltd1,767$585K0.6%-23.2%0.001%
4/29/2026 Burney Co.3,411$1.13M0.0%-25.6%0.003%
4/29/2026 Swedbank AB62,215$20.59M0.0%+0.4%0.047%
4/28/2026 Whittier Trust Co. of Nevada Inc.219$72K0.0%+167.1%0.000%
4/28/2026 Ascentis Independent Advisors194$64K0.0%N/A0.000%
A letter from Shannon Stansberry (Ad)

Porter Stansberry nearly canceled the entire project. When he first saw the claimed returns - only one down year in nearly two decades and total gains of almost 2,000% - his immediate reaction was disbelief. It took a trusted friend's personal vouching for Emmet Savage and a face-to-face trip to Ireland to change his mind. The full documentary, Investigating Project Prophet, is now live.tc pixel

Watch the full story and see the verified track record for yourself
4/28/2026 Kepler Cheuvreux Suisse SA1,713$567K0.0%N/A0.001%
4/28/2026 QRG Capital Management Inc.2,277$754K0.0%-3.6%0.002%
4/27/2026 HB Wealth Management LLC1,995$660K0.0%+17.3%0.001%
4/27/2026 Sierra Summit Advisors LLC30,298$10.03M1.5%N/A0.023%
4/27/2026 Y 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%
4/27/2026 Leonteq Securities AG248$82K0.0%+136.2%0.000%
4/27/2026 Fjarde 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%
4/27/2026 Fideuram 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, 829 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 746 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 19,846,488 shares in the last 24 months. This purchase volume represents approximately $8.03B in transactions.

Of the 352 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 202,377,822 shares in the last 24 months. This volume of shares sold represents approximately $90.50B in transactions.


Related Companies

This page (NASDAQ:ALNY) was last updated on 8/3/2026 by MarketBeat.com Staff.
From Our Partners
ALERT: Drop these 5 stocks before the market opens tomorrow!
The Wall Street Journal is already raising the alarm about a potential market crash, and Weiss Ratings researc...
Weiss Ratings | Sponsoredtc pixel
Louis Navellier: My #1 AI stock for 2026 (name & ticker inside)
Louis Navellier's Stock Grader system helped him flag Nvidia before its 82,000% run and has identified the top...
InvestorPlace | Sponsoredtc pixel
Trump Takes Emergency Action - Plus Elon Musk's New Venture
Elon Musk has quietly launched a new venture - one that has nothing to do with rockets, EVs, or Neuralink. Tru...
Altimetry | Sponsoredtc pixel
Ready to give options a try? Your first trade (Ticker included) -INSIDE
Tired of trying tactic after tactic when it comes to options trades... only to be met with market noise and st...
Base Camp Trading | Sponsoredtc pixel
My top 3 AI picks for the next decade
Alexander Green bought Apple in 1996, recommended Nvidia at a split-adjusted 66 cents in 2004, and picked up A...
The Oxford Club | Sponsoredtc pixel
Where to Put $100 Before Trump's New Tech Law Rolls Out
The Financial Times says a new tech law puts America 'on the verge of a financial revolution.' Yahoo Finance e...
Brownstone Research | Sponsoredtc pixel
Elon's new "super startup"
Adam O'Dell - the analyst who recommended Palantir before it became the top S&P 500 performer - has identified...
Banyan Hill Publishing | Sponsoredtc pixel
“The unseen winner of the AI race” is not SpaceX
Marc Chaikin - the analyst who called Nvidia before its historic run - says a tech firm labeled 'the unseen wi...
Chaikin Analytics | Sponsoredtc pixel