Dyne Therapeutics Ownership | Who Owns Dyne Therapeutics?

Dyne Therapeutics Ownership Summary

Dyne Therapeutics is owned by 144.98% institutional investors, 0.28% insiders. T. rowe price investment management is the largest institutional shareholder, holding 23.97% of DYN shares. T. Rowe Price US Small-Cap Core Equity is the top mutual fund, with 4.25% of its assets in Dyne Therapeutics shares.

DYN Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Dyne Therapeutics	144.98%	0.28%	-45.26%
Sector	Healthcare Stocks	35.75%	11.89%	52.37%
Industry	Biotech Stocks	36.05%	11.82%	52.13%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
T. rowe price investment management	30.79M	23.97%	$558.15M
Janus henderson group	13.65M	10.63%	$247.43M
Blackrock	7.39M	9.11%	$260.69M
Blackrock funding, inc. /de	11.70M	9.11%	$212.12M
Vanguard group	11.22M	7.91%	$219.38M
Atlas venture life science advisors	9.13M	7.11%	$165.54M
Fmr	8.91M	6.94%	$161.52M
Orbis allan gray	6.76M	5.26%	$122.60M
State street	6.65M	5.18%	$120.63M
Perceptive advisors	4.67M	3.63%	$84.65M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Atlas venture life science advisors	9.13M	20.95%	$165.54M
Mpm asset management	682.38K	19.40%	$8.63M
Fcpm iii services b.v.	4.64M	11.66%	$84.20M
University of wisconsin foundation	484.75K	7.80%	$8.79M
Palo alto investors lp	1.65M	4.58%	$29.97M
Saturn v capital management	966.61K	3.17%	$17.52M
Tcg crossover management	4.62M	2.39%	$83.67M
Vivo capital	1.56M	2.36%	$28.24M
Vestal point capital, lp	4.00M	2.03%	$72.52M
Bioimpact capital	1.41M	1.97%	$25.53M

Top Buyers

Holder	Shares	% Assets	Change
T. rowe price investment management	30.79M	0.38%	13.25M
Vestal point capital, lp	4.00M	2.03%	3.88M
Fmr	8.91M	0.01%	2.34M
Blackrock	7.39M	0.01%	2.00M
Orbis allan gray	6.76M	0.52%	1.96M

Top Sellers

Holder	Shares	% Assets	Change
Ra capital management	-	-	-9.71M
Adage capital partners gp	1.00M	0.03%	-4.17M
Holocene advisors, lp	-	-	-2.35M
Jefferies financial group	-	-	-1.80M
Siren	2.23M	1.12%	-1.27M

New Positions

Holder	Shares	% Assets	Change	Value
Paradigm biocapital advisors lp	1.90M	0.68%	1.90M	$24.02M
Fiera capital	1.38M	0.09%	1.38M	$25.03M
Vanguard fiduciary trust	947.44K	0.00%	947.44K	$17.18M
Axa investment managers	163.23K	0.01%	163.23K	$2.06M
Man group	95.68K	0.00%	95.68K	$1.73M

Sold Out

Holder	Change
Dunhill financial	-1.00
Nelson, van denburg & campbell wealth management group	-9.00
J.safra asset management	-11.00
Cva family office	-12.00
Srs capital advisors	-18.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2026	229	-4.58%	186,215,369	4.65%	144	0.92%	139	-9.74%	60	7.14%
Dec 31, 2025	48	-77.78%	17,667,612	-88.66%	12	0.07%	33	-77.40%	8	-80.49%
Sep 30, 2025	56	-72.00%	16,926,024	-86.84%	14	0.12%	39	-66.95%	9	-82.69%
Jun 30, 2025	198	-5.71%	128,546,973	5.45%	112	0.92%	116	-10.08%	52	15.56%
Mar 31, 2025	25	-87.86%	30,059,507	-73.06%	27	0.22%	15	-85.98%	6	-90.32%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
T. Rowe Price US Small-Cap Core Equity	7.01M	4.25%	1.57M
T. Rowe Price Small-Cap Stock	7.01M	4.24%	-4.99K
Vanguard Total Stock Mkt Idx Inv	4.71M	2.85%	59.41K
T. Rowe Price Small-Cap Value	4.62M	2.80%	-2.88K
Vanguard US Total Market Shares ETF	2.65M	2.35%	2.40K
T. Rowe Price Instl Small-Cap Stock	3.81M	2.30%	-
State Street® SPDR® S&P® Biotech ETF	3.81M	2.30%	-23.41K
Fidelity Growth Compy Commingled Pl S	3.55M	2.15%	603.16K
T. Rowe Price U.S. SC Core Eq Tr-D	3.38M	2.05%	819.54K
T. Rowe Price Capital Appreciation	3.28M	1.98%	-

Recent Insider Transactions

Date	Name	Role	Activity	Value
Jun 29, 2026	Rhodes Jason P	-	Sell	$1.09M
Jun 26, 2026	Rhodes Jason P	-	Sell	$1.74M
Jun 29, 2026	Rhodes Jason P	-	Sell	$2.18M
Jun 26, 2026	Rhodes Jason P	-	Sell	$3.47M
Jun 26, 2026	Rhodes Jason P	-	Sell	$1.37M

Insider Transactions Trends

Date	Buy	Sell
2026 Q2	4	84
2026 Q1	3	8
2025 Q4	-	3
2025 Q3	1	5
2025 Q2	-	3

DYN Ownership FAQ

Who Owns Dyne Therapeutics?

Dyne Therapeutics shareholders are primarily institutional investors at 144.98%, followed by 0.28% insiders and -45.26% retail investors. The average institutional ownership in Dyne Therapeutics's industry, Biotech Stocks , is 36.05%, which Dyne Therapeutics exceeds.

Who owns the most shares of Dyne Therapeutics?

Dyne Therapeutics’s largest shareholders are T. rowe price investment management (30.79M shares, 23.97%), Janus henderson group (13.65M shares, 10.63%), and Blackrock (7.39M shares, 9.11%). Together, they hold 43.71% of Dyne Therapeutics’s total shares outstanding.

Does Blackrock own Dyne Therapeutics?

Yes, BlackRock owns 9.11% of Dyne Therapeutics, totaling 7.39M shares as of Jun 2024. This represents 0.01% of BlackRock's total assets, with a market value of 260.69M$. In the last quarter, BlackRock increased its holdings by 2M shares, a 37.05% change.

Who is Dyne Therapeutics’s biggest shareholder by percentage of total assets invested?

Atlas venture life science advisors is Dyne Therapeutics’s biggest shareholder by percentage of total assets invested, with 20.95% of its assets in 9.13M Dyne Therapeutics shares, valued at 165.54M$.

Who is the top mutual fund holder of Dyne Therapeutics shares?

T. Rowe Price US Small-Cap Core Equity is the top mutual fund holder of Dyne Therapeutics shares, with 4.25% of its total shares outstanding invested in 7.01M Dyne Therapeutics shares.

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