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Dyne Therapeutics (DYN) Institutional Ownership

Dyne Therapeutics logo
$25.70 -0.26 (-1.00%)
Closing price 08/14/2026 04:00 PM Eastern
Extended Trading
$25.54 -0.15 (-0.60%)
As of 08/14/2026 07:37 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 Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for Dyne Therapeutics (NASDAQ:DYN)

Current
Institutional Ownership
Percentage
96.68%
Number of
Institutional Buyers
(last 12 months)
153
Total
Institutional Inflows
(last 12 months)
$1.74B
Number of
Institutional Sellers
(last 12 months)
49
Total
Institutional Outflows
(last 12 months)
$306.08M
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DYN Institutional Buying and Selling by Quarter

Dyne Therapeutics Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/15/2026Jupiter Topco LLC11,997,738$266.63M0.1%N/A6.424%
8/14/2026ADAR1 Capital Management LLC42,821$951K0.0%N/A0.023%
8/14/2026University of Wisconsin Foundation313,559$6.96M5.5%N/A0.168%
8/14/2026Legal & General Group Plc97,940$2.18M0.0%N/A0.052%
8/14/2026The Manufacturers Life Insurance Company 78,622$1.75M0.0%N/A0.042%
8/14/2026 Algert Global LLC506,273$11.24M0.1%+11.4%0.271%
8/13/2026 Cibc World Market Inc.75,783$1.68M0.0%N/A0.041%
8/11/2026 Keating Financial Advisory Services Inc.5,112$114K0.0%N/A0.003%
8/11/2026 Allworth Financial LP2,787$62K0.0%N/A0.001%
8/11/2026 E Fund Management Co. Ltd.16,230$360K0.0%N/A0.009%
8/7/2026 Aegis Wealth Management LLC150,030$3.33M1.6%N/A0.080%
8/7/2026 BlackRock Inc.12,404,330$275.50M0.0%N/A6.642%
8/7/2026 Deutsche Bank AG242,392$5.38M0.0%N/A0.130%
8/7/2026 Persistent Asset Partners Ltd5,569$124K0.0%N/A0.003%
8/6/2026 Flputnam Investment Management Co.52,975$1.18M0.0%N/A0.028%
8/6/2026 Bank of New York Mellon Corp409,801$9.10M0.0%N/A0.219%
7/10/2026 Handelsbanken Fonder AB53,200$1.18M0.0%N/A0.032%
5/29/2026Perceptive Advisors LLC4,668,839$84.65M1.7%+34.2%2.824%
5/20/2026Vivo Capital LLC1,557,466$28.24M2.3%-40.4%0.942%
5/19/2026Bank of America Corp DE1,443,313$26.17M0.0%+63.5%0.873%
5/19/2026Stempoint Capital LP506,075$9.18M1.7%-39.4%0.306%
5/19/2026Janus Henderson Group PLC13,647,376$247.43M0.1%-1.7%8.256%
5/18/2026ADAR1 Capital Management LLC47,463$861K0.1%-9.9%0.029%
5/18/2026California State Teachers Retirement System139,663$2.53M0.0%+15.6%0.084%
5/18/2026Royal Bank of Canada68,188$1.24M0.0%+267.6%0.041%
5/18/2026Rock Springs Capital Management LP972,198$17.63M1.0%+6.5%0.588%
5/16/2026The Manufacturers Life Insurance Company63,850$1.16M0.0%-5.4%0.039%
5/16/2026 Quantinno Capital Management LP19,297$350K0.0%+53.2%0.012%
5/16/2026SummitTX Capital L.P.196,188$3.56M0.1%-19.4%0.119%
5/16/2026Orbimed Advisors LLC2,917,884$52.90M1.0%+32.5%1.765%
5/14/2026 Renaissance Technologies LLC533,600$9.67M0.0%+13.4%0.323%
5/14/2026 Siren L.L.C.2,229,125$40.41M1.1%-36.4%1.348%
5/14/2026Sei Investments Co.44,973$815K0.0%-23.5%0.027%
5/7/2026 Dimensional Fund Advisors LP951,589$17.24M0.0%+870.3%0.576%
5/7/2026 Swiss National Bank228,100$4.14M0.0%+2.5%0.138%
5/6/2026 Assetmark Inc.31,062$563K0.0%N/A0.019%
5/5/2026 Bank of New York Mellon Corp401,616$7.28M0.0%+13.6%0.243%
5/1/2026 Fifth Third Bancorp54,229$983K0.0%N/A0.033%
5/1/2026 Darwin Wealth Management LLC154,862$2.81M0.9%+34.4%0.094%
4/28/2026 Stephens Inc. AR10,118$183K0.0%N/A0.006%
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4/27/2026 Y Intercept Hong Kong Ltd65,158$1.18M0.0%-81.0%0.039%
4/23/2026 Inspire Investing LLC9,303$169K0.0%N/A0.006%
4/22/2026 Pictet Asset Management Holding SA19,372$351K0.0%+49.4%0.012%
4/22/2026 Sterling Capital Management LLC3,281$59K0.0%-36.5%0.002%
4/21/2026 Wasatch Advisors LP443,668$8.04M0.1%+9.0%0.269%
4/20/2026 Hilton Head Capital Partners LLC1,446$26K0.0%N/A0.001%
4/16/2026 SG Americas Securities LLC112,626$2.04M0.0%-57.6%0.068%
3/17/2026 Rockefeller Capital Management L.P.14,268$279K0.0%+67.1%0.009%
2/26/2026Seven Fleet Capital Management LP70,180$1.37M1.0%N/A0.049%
2/19/2026T. Rowe Price Investment Management Inc.17,540,089$343.09M0.2%+523.7%12.281%
2/19/2026Invesco Ltd.137,684$2.69M0.0%+17.1%0.096%
2/19/2026 Axxcess Wealth Management LLC113,818$2.23M0.0%N/A0.080%
2/18/2026XTX Topco Ltd56,661$1.11M0.0%+93.9%0.040%
2/18/2026Vestal Point Capital LP120,000$2.35M0.1%-95.7%0.084%
2/18/2026 Virtus Investment Advisers LLC13,806$270K0.1%+75.4%0.010%
2/18/2026Wellington Management Group LLP47,096$921K0.0%+12.4%0.033%
2/18/2026SummitTX Capital L.P.243,276$4.76M0.1%+83.1%0.170%
2/18/2026Tudor Investment Corp ET AL147,621$2.89M0.0%N/A0.103%
2/18/2026Sphera Funds Management LTD.392,894$7.69M1.5%-7.9%0.275%
2/18/2026Orbimed Advisors LLC2,202,184$43.08M0.9%-4.8%1.542%
2/18/2026Perceptive Advisors LLC3,478,944$68.05M1.2%+543.7%2.436%
2/18/2026Millennium Management LLC904,389$17.69M0.0%+118.5%0.633%
2/18/2026Janus Henderson Group PLC13,887,722$271.60M0.1%-5.8%9.724%
2/18/2026Engineers Gate Manager LP21,619$423K0.0%-79.0%0.015%
2/18/2026Catalio Capital Management LP519,715$10.17M1.9%N/A0.364%
2/18/2026Balyasny Asset Management L.P.432,986$8.47M0.0%N/A0.303%
2/18/2026Baker BROS. Advisors LP813,449$15.91M0.1%N/A0.570%
2/18/2026Armistice Capital LLC3,249,708$63.56M0.8%+6.1%2.275%
2/17/2026 Guggenheim Capital LLC11,071$217K0.0%-76.8%0.008%
2/17/2026Logos Global Management LP1,250,000$24.45M1.5%-47.9%0.875%
2/17/2026Burkehill Global Management LP155,000$3.03M0.2%+29.2%0.109%
2/17/2026PDT Partners LLC182,986$3.58M0.2%-9.1%0.128%
2/17/2026J. Goldman & Co LP46,010$900K0.0%N/A0.032%
2/17/2026AQR Capital Management LLC70,659$1.38M0.0%-50.2%0.049%
2/17/2026Braidwell LP1,478,329$28.92M0.9%-45.9%1.035%
2/17/2026MPM Bioimpact LLC1,405,388$27.49M3.1%-2.8%0.984%
2/17/2026Jain Global LLC162,047$3.17M0.0%-74.8%0.113%
2/17/2026First Light Asset Management LLC155,231$3.04M0.2%N/A0.109%
2/17/2026 ArrowMark Colorado Holdings LLC700,653$13.71M0.3%-10.8%0.491%
2/17/2026Trexquant Investment LP100,645$1.97M0.0%-70.9%0.070%
2/17/2026Orbis Allan Gray Ltd4,801,928$93.93M0.4%N/A3.362%
2/17/2026 Jump Financial LLC35,260$690K0.0%-64.7%0.025%
2/17/2026Price T Rowe Associates Inc. MD2,323,789$45.45M0.0%+66.2%1.627%
2/17/2026T. Rowe Price Investment Management Inc.2,870,568$56.15M0.1%+2.1%2.010%
2/17/2026Rock Springs Capital Management LP912,955$17.86M0.9%+10.8%0.639%
2/17/2026Adage Capital Partners GP L.L.C.5,172,000$101.16M0.2%+45.5%3.621%
2/17/2026California State Teachers Retirement System120,800$2.36M0.0%+35.5%0.085%
2/17/2026 Russell Investments Group Ltd.232,013$4.54M0.0%+103.6%0.162%
2/17/2026State of Wisconsin Investment Board63,653$1.25M0.0%+59.3%0.045%
2/17/2026 Artisan Partners Limited Partnership649,691$12.71M0.0%N/A0.455%
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2/17/2026Royal Bank of Canada18,547$363K0.0%-96.6%0.013%
2/17/2026Graham Capital Management L.P.36,167$707K0.0%-16.2%0.025%
2/17/2026Polar Capital Holdings Plc1,269,131$24.82M0.1%+139.7%0.889%
2/17/2026 Aster Capital Management DIFC Ltd4,310$84K0.0%N/A0.003%
2/16/2026Squarepoint Ops LLC255,160$4.99M0.0%+436.1%0.179%
2/16/2026Sofinnova Investments Inc.2,254,161$44.09M1.8%+128.7%1.578%
2/16/2026Verition Fund Management LLC10,453$204K0.0%N/A0.007%
2/16/2026Frazier Life Sciences Management L.P.3,153,082$61.67M1.7%+16.0%2.208%
2/16/2026Eventide Asset Management LLC680,305$13.31M0.2%N/A0.476%
2/13/2026 Marshall Wace LLP676,979$13.24M0.0%-77.5%0.474%


DYN Institutional Ownership - Frequently Asked Questions

During the previous two years, 249 institutional investors and hedge funds held shares of Dyne Therapeutics. The most heavily invested institutionals were T. Rowe Price Investment Management Inc. ($343.09M), BlackRock Inc. ($275.50M), Jupiter Topco LLC ($266.63M), Janus Henderson Group PLC ($247.43M), Vanguard Group Inc. ($219.38M), FMR LLC ($188.41M), and State Street Corp ($130.91M).Learn more on Dyne Therapeutics' institutional investors.

96.68% of Dyne Therapeutics' stock is owned by institutional investors. Learn more on DYN's institutional investor holdings.

Of the 227 institutional investors that purchased Dyne Therapeutics' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: T. Rowe Price Investment Management Inc. ($15.95M), BlackRock Inc. ($12.40M), Jupiter Topco LLC ($12.00M), Adage Capital Partners GP L.L.C. ($4.81M), Orbis Allan Gray Ltd ($4.80M), Vanguard Group Inc. ($4.27M), and Perceptive Advisors LLC ($4.13M).

Institutional investors have bought a total of 93,564,979 shares in the last 24 months. This purchase volume represents approximately $1.74B in transactions.

Of the 49 institutional investors that sold Dyne Therapeutics' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Vestal Point Capital LP ($2.66M), Siren L.L.C. ($2.50M), Marshall Wace LLP ($2.34M), Braidwell LP ($1.80M), Logos Global Management LP ($1.15M), Janus Henderson Group PLC ($1.10M), and Vivo Capital LLC ($1.06M).

Institutional investors have sold a total of 16,414,027 shares in the last 24 months. This volume of shares sold represents approximately $306.08M in transactions.


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Institutional ownership data for NASDAQ:DYN is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/15/2026. New 13F filings are added each quarter as they're published.
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