Dyne Therapeutics (DYN) Institutional Ownership

$16.03 -0.48 (-2.91%)

Closing price 09/25/2026 04:00 PM Eastern

Extended Trading

$16.40 +0.37 (+2.30%)

As of 09/25/2026 07:56 PM Eastern

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Current Institutional Ownership Percentage: 96.68%
Number of Institutional Buyers (last 12 months): 157
Total Institutional Inflows (last 12 months): $1.84B

Number of Institutional Sellers (last 12 months): 50
Total Institutional Outflows (last 12 months): $386.59M

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DYN Institutional Buying and Selling by Quarter

Dyne Therapeutics Major Shareholders & Ownership History

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Reporting Date	Major Shareholder Name	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
9/9/2026	NewEdge Advisors LLC	13,522	$300K	0.0%	N/A	0.007%
9/9/2026	Squarepoint Ops LLC	300,074	$6.67M	0.0%	-64.0%	0.161%
9/8/2026	Nykredit A S	5,102	$113K	0.0%	N/A	0.003%
8/21/2026	Atlas Venture Life Science Advisors LLC	6,800,099	$151.03M	17.1%	-25.5%	3.641%
8/21/2026	Braidwell LP	921,598	$20.47M	0.8%	-45.2%	0.493%
8/21/2026	Nykredit A S	5,102	$113K	0.0%	N/A	0.003%
8/20/2026	Moore Capital Management LP	305,794	$6.79M	0.1%	+288.2%	0.164%
8/20/2026	Two Sigma Securities LLC	10,015	$222K	0.0%	N/A	0.005%
8/20/2026	Alyeska Investment Group L.P.	245,278	$5.45M	0.0%	N/A	0.131%
8/20/2026	Flputnam Investment Management Co.	52,975	$1.18M	0.0%	N/A	0.028%
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8/19/2026	UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	269,985	$6.00M	0.0%	+12.8%	0.145%
8/19/2026	Wellington Management Group LLP	52,427	$1.16M	0.0%	+7.3%	0.028%
8/18/2026	Palo Alto Investors LP	1,647,521	$36.59M	0.0%	N/A	0.882%
8/17/2026	Bank of America Corp DE	2,233,398	$49.60M	0.0%	N/A	1.196%
8/15/2026	Jupiter Topco LLC	11,997,738	$266.63M	0.1%	N/A	6.424%
8/14/2026	ADAR1 Capital Management LLC	42,821	$951K	0.0%	N/A	0.023%
8/14/2026	University of Wisconsin Foundation	313,559	$6.96M	5.5%	N/A	0.168%
8/14/2026	Legal & General Group Plc	97,940	$2.18M	0.0%	N/A	0.052%
8/14/2026	The Manufacturers Life Insurance Company	78,622	$1.75M	0.0%	N/A	0.042%
8/14/2026	Algert Global LLC	506,273	$11.24M	0.1%	+11.4%	0.271%
8/13/2026	Cibc World Market Inc.	75,783	$1.68M	0.0%	N/A	0.041%
8/11/2026	Keating Financial Advisory Services Inc.	5,112	$114K	0.0%	N/A	0.003%
8/11/2026	Allworth Financial LP	2,787	$62K	0.0%	N/A	0.001%
8/11/2026	E Fund Management Co. Ltd.	16,230	$360K	0.0%	N/A	0.009%
8/7/2026	Aegis Wealth Management LLC	150,030	$3.33M	1.6%	N/A	0.080%
8/7/2026	BlackRock Inc.	12,404,330	$275.50M	0.0%	N/A	6.642%
8/7/2026	Deutsche Bank AG	242,392	$5.38M	0.0%	N/A	0.130%
8/7/2026	Persistent Asset Partners Ltd	5,569	$124K	0.0%	N/A	0.003%
8/6/2026	Flputnam Investment Management Co.	52,975	$1.18M	0.0%	N/A	0.028%
8/6/2026	Bank of New York Mellon Corp	409,801	$9.10M	0.0%	N/A	0.219%
7/10/2026	Handelsbanken Fonder AB	53,200	$1.18M	0.0%	N/A	0.032%
5/29/2026	Perceptive Advisors LLC	4,668,839	$84.65M	1.7%	+34.2%	2.824%
5/20/2026	Vivo Capital LLC	1,557,466	$28.24M	2.3%	-40.4%	0.942%
5/19/2026	Bank of America Corp DE	1,443,313	$26.17M	0.0%	+63.5%	0.873%
5/19/2026	Stempoint Capital LP	506,075	$9.18M	1.7%	-39.4%	0.306%
5/19/2026	Janus Henderson Group PLC	13,647,376	$247.43M	0.1%	-1.7%	8.256%
5/18/2026	ADAR1 Capital Management LLC	47,463	$861K	0.1%	-9.9%	0.029%
5/18/2026	California State Teachers Retirement System	139,663	$2.53M	0.0%	+15.6%	0.084%
5/18/2026	Royal Bank of Canada	68,188	$1.24M	0.0%	+267.6%	0.041%
5/18/2026	Rock Springs Capital Management LP	972,198	$17.63M	1.0%	+6.5%	0.588%
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5/16/2026	The Manufacturers Life Insurance Company	63,850	$1.16M	0.0%	-5.4%	0.039%
5/16/2026	Quantinno Capital Management LP	19,297	$350K	0.0%	+53.2%	0.012%
5/16/2026	SummitTX Capital L.P.	196,188	$3.56M	0.1%	-19.4%	0.119%
5/16/2026	Orbimed Advisors LLC	2,917,884	$52.90M	1.0%	+32.5%	1.765%
5/14/2026	Renaissance Technologies LLC	533,600	$9.67M	0.0%	+13.4%	0.323%
5/14/2026	Siren L.L.C.	2,229,125	$40.41M	1.1%	-36.4%	1.348%
5/14/2026	Sei Investments Co.	44,973	$815K	0.0%	-23.5%	0.027%
5/7/2026	Dimensional Fund Advisors LP	951,589	$17.24M	0.0%	+870.3%	0.576%
5/7/2026	Swiss National Bank	228,100	$4.14M	0.0%	+2.5%	0.138%
5/6/2026	Assetmark Inc.	31,062	$563K	0.0%	N/A	0.019%
5/5/2026	Bank of New York Mellon Corp	401,616	$7.28M	0.0%	+13.6%	0.243%
5/1/2026	Fifth Third Bancorp	54,229	$983K	0.0%	N/A	0.033%
5/1/2026	Darwin Wealth Management LLC	154,862	$2.81M	0.9%	+34.4%	0.094%
4/28/2026	Stephens Inc. AR	10,118	$183K	0.0%	N/A	0.006%
4/27/2026	Y Intercept Hong Kong Ltd	65,158	$1.18M	0.0%	-81.0%	0.039%
4/23/2026	Inspire Investing LLC	9,303	$169K	0.0%	N/A	0.006%
4/22/2026	Pictet Asset Management Holding SA	19,372	$351K	0.0%	+49.4%	0.012%
4/22/2026	Sterling Capital Management LLC	3,281	$59K	0.0%	-36.5%	0.002%
4/21/2026	Wasatch Advisors LP	443,668	$8.04M	0.1%	+9.0%	0.269%
4/20/2026	Hilton Head Capital Partners LLC	1,446	$26K	0.0%	N/A	0.001%
4/16/2026	SG Americas Securities LLC	112,626	$2.04M	0.0%	-57.6%	0.068%
3/17/2026	Rockefeller Capital Management L.P.	14,268	$279K	0.0%	+67.1%	0.009%
2/26/2026	Seven Fleet Capital Management LP	70,180	$1.37M	1.0%	N/A	0.049%
2/19/2026	T. Rowe Price Investment Management Inc.	17,540,089	$343.09M	0.2%	+523.7%	12.281%
2/19/2026	Invesco Ltd.	137,684	$2.69M	0.0%	+17.1%	0.096%
2/19/2026	Axxcess Wealth Management LLC	113,818	$2.23M	0.0%	N/A	0.080%
2/18/2026	XTX Topco Ltd	56,661	$1.11M	0.0%	+93.9%	0.040%
2/18/2026	Vestal Point Capital LP	120,000	$2.35M	0.1%	-95.7%	0.084%
2/18/2026	Virtus Investment Advisers LLC	13,806	$270K	0.1%	+75.4%	0.010%
2/18/2026	Wellington Management Group LLP	47,096	$921K	0.0%	+12.4%	0.033%
2/18/2026	SummitTX Capital L.P.	243,276	$4.76M	0.1%	+83.1%	0.170%
2/18/2026	Tudor Investment Corp ET AL	147,621	$2.89M	0.0%	N/A	0.103%
2/18/2026	Sphera Funds Management LTD.	392,894	$7.69M	1.5%	-7.9%	0.275%
2/18/2026	Orbimed Advisors LLC	2,202,184	$43.08M	0.9%	-4.8%	1.542%
2/18/2026	Perceptive Advisors LLC	3,478,944	$68.05M	1.2%	+543.7%	2.436%
2/18/2026	Millennium Management LLC	904,389	$17.69M	0.0%	+118.5%	0.633%
2/18/2026	Janus Henderson Group PLC	13,887,722	$271.60M	0.1%	-5.8%	9.724%
2/18/2026	Engineers Gate Manager LP	21,619	$423K	0.0%	-79.0%	0.015%
2/18/2026	Catalio Capital Management LP	519,715	$10.17M	1.9%	N/A	0.364%
2/18/2026	Balyasny Asset Management L.P.	432,986	$8.47M	0.0%	N/A	0.303%
2/18/2026	Baker BROS. Advisors LP	813,449	$15.91M	0.1%	N/A	0.570%
2/18/2026	Armistice Capital LLC	3,249,708	$63.56M	0.8%	+6.1%	2.275%
2/17/2026	Guggenheim Capital LLC	11,071	$217K	0.0%	-76.8%	0.008%
2/17/2026	Logos Global Management LP	1,250,000	$24.45M	1.5%	-47.9%	0.875%
2/17/2026	Burkehill Global Management LP	155,000	$3.03M	0.2%	+29.2%	0.109%
2/17/2026	PDT Partners LLC	182,986	$3.58M	0.2%	-9.1%	0.128%
2/17/2026	J. Goldman & Co LP	46,010	$900K	0.0%	N/A	0.032%
2/17/2026	AQR Capital Management LLC	70,659	$1.38M	0.0%	-50.2%	0.049%
2/17/2026	Braidwell LP	1,478,329	$28.92M	0.9%	-45.9%	1.035%
2/17/2026	MPM Bioimpact LLC	1,405,388	$27.49M	3.1%	-2.8%	0.984%
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2/17/2026	Jain Global LLC	162,047	$3.17M	0.0%	-74.8%	0.113%
2/17/2026	First Light Asset Management LLC	155,231	$3.04M	0.2%	N/A	0.109%
2/17/2026	ArrowMark Colorado Holdings LLC	700,653	$13.71M	0.3%	-10.8%	0.491%
2/17/2026	Trexquant Investment LP	100,645	$1.97M	0.0%	-70.9%	0.070%
2/17/2026	Orbis Allan Gray Ltd	4,801,928	$93.93M	0.4%	N/A	3.362%
2/17/2026	Jump Financial LLC	35,260	$690K	0.0%	-64.7%	0.025%
2/17/2026	Price T Rowe Associates Inc. MD	2,323,789	$45.45M	0.0%	+66.2%	1.627%
2/17/2026	T. Rowe Price Investment Management Inc.	2,870,568	$56.15M	0.1%	+2.1%	2.010%
2/17/2026	Rock Springs Capital Management LP	912,955	$17.86M	0.9%	+10.8%	0.639%
2/17/2026	Adage Capital Partners GP L.L.C.	5,172,000	$101.16M	0.2%	+45.5%	3.621%

DYN Institutional Ownership - Frequently Asked Questions

During the previous two years, 254 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 Atlas Venture Life Science Advisors LLC ($151.03M).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 232 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 97,853,592 shares in the last 24 months. This purchase volume represents approximately $1.84B in transactions.

Of the 50 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), Braidwell LP ($2.56M), Siren L.L.C. ($2.50M), Marshall Wace LLP ($2.34M), Atlas Venture Life Science Advisors LLC ($2.33M), Logos Global Management LP ($1.15M), and Janus Henderson Group PLC ($1.10M).

Institutional investors have sold a total of 20,038,895 shares in the last 24 months. This volume of shares sold represents approximately $386.59M 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 9/9/2026. New 13F filings are added each quarter as they're published.

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Dyne Therapeutics (DYN) Institutional Ownership

DYN Institutional Buying and Selling by Quarter

Dyne Therapeutics Major Shareholders & Ownership History

DYN Institutional Ownership - Frequently Asked Questions

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Dyne Therapeutics (DYN) Institutional Ownership

Institutional Ownership Changes (13F Filings) for Dyne Therapeutics (NASDAQ:DYN)

DYN Institutional Buying and Selling by Quarter

Dyne Therapeutics Major Shareholders & Ownership History

DYN Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of DYN shares?

What percentage of Dyne Therapeutics' stock is owned by institutional investors?

Which institutional investors have been buying Dyne Therapeutics' stock?

How much institutional buying is happening at Dyne Therapeutics?

Which of Dyne Therapeutics' major shareholders have been selling company stock?

How much institutional selling is happening at Dyne Therapeutics?

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