Dyne Therapeutics Ownership | Who Owns Dyne Therapeutics?

Dyne Therapeutics Ownership Summary

Dyne Therapeutics is owned by 116.14% institutional investors, 0.25% insiders. T. rowe price investment management is the largest institutional shareholder, holding 18.73% of DYN shares. T. Rowe Price Small-Cap Stock is the top mutual fund, with 4.24% of its assets in Dyne Therapeutics shares.

DYN Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Dyne Therapeutics	116.14%	0.25%	-16.39%
Sector	Healthcare Stocks	50.50%	12.33%	37.17%
Industry	Biotech Stocks	49.09%	12.06%	38.85%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
T. rowe price investment management	30.91M	18.73%	$686.56M
Janus henderson group	13.65M	10.63%	$247.43M
Blackrock	7.39M	9.11%	$260.69M
Vanguard group	11.22M	7.91%	$219.38M
Blackrock funding, inc. /de	12.40M	7.52%	$275.50M
Fmr	11.21M	6.79%	$248.91M
State street	7.46M	4.52%	$165.65M
Orbis allan gray	7.01M	4.25%	$155.62M
Atlas venture life science advisors	6.80M	4.12%	$151.03M
Vanguard capital management	6.31M	3.82%	$140.17M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Mpm asset management	682.38K	19.40%	$8.63M
Atlas venture life science advisors	6.80M	17.14%	$151.03M
Fcpm iii services b.v.	3.85M	11.39%	$85.47M
University of wisconsin foundation	313.56K	5.51%	$6.96M
Palo alto investors lp	1.65M	5.06%	$36.59M
Saturn v capital management	1.06M	3.37%	$23.49M
Vivo capital	1.56M	3.16%	$34.59M
Bioimpact capital	1.92M	2.60%	$42.69M
Tcg crossover management	4.62M	2.46%	$102.50M
Logos global management lp	2.55M	2.44%	$56.64M

Top Buyers

Holder	Shares	% Assets	Change
Fmr	11.21M	0.01%	2.30M
Blackrock	7.39M	0.01%	2.00M
Paradigm biocapital advisors lp	1.90M	0.68%	1.90M
Price t rowe associates inc /md/	3.94M	0.01%	1.61M
Vanguard group	11.22M	0.00%	1.46M

Top Sellers

Holder	Shares	% Assets	Change
Ra capital management	-	-	-9.71M
Holocene advisors, lp	-	-	-2.35M
Atlas venture life science advisors	6.80M	17.14%	-2.33M
Perceptive advisors	2.69M	0.90%	-1.98M
Jefferies financial group	-	-	-1.80M

New Positions

Holder	Shares	% Assets	Change	Value
Paradigm biocapital advisors lp	1.90M	0.68%	1.90M	$24.02M
Sixth street partners management company	1.20M	0.00%	1.20M	$26.70M
Novo	960.39K	1.24%	960.39K	$21.33M
Granahan investment management	338.56K	0.27%	338.56K	$7.52M
Alyeska investment group	245.28K	0.01%	245.28K	$5.45M

Sold Out

Holder	Change
Dunhill financial	-1.00
Nelson, van denburg & campbell wealth management group	-9.00
Creative financial designs inc /adv	-10.00
J.safra asset management	-11.00
Twin peaks wealth advisors	-14.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Jun 30, 2026	253	7.20%	191,678,138	2.03%	116	0.90%	140	-2.78%	74	21.31%
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%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
T. Rowe Price Small-Cap Stock	7.00M	4.24%	-2.61K
T. Rowe Price US Small-Cap Core Equity	7.00M	4.24%	-7.60K
T. Rowe Price Small-Cap Value	4.60M	2.78%	-19.57K
Vanguard Total Stock Mkt Idx Inv	4.47M	2.71%	-242.06K
Vanguard Morn Total Stk Mkt Idx Investor	4.47M	2.40%	-242.06K
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	4.08M	2.18%	9.36K
Fidelity Growth Compy Commingled Pl S	3.99M	2.14%	195.10K
iShares Russell 2000 ETF	3.83M	2.05%	-67.97K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Aug 13, 2026	Rhodes Jason P	-	Sell	$1.67M
Aug 14, 2026	Rhodes Jason P	-	Sell	$33.99M
Aug 13, 2026	Rhodes Jason P	-	Sell	$7.03M
Aug 13, 2026	Rhodes Jason P	-	Sell	$2.47M
Aug 14, 2026	Rhodes Jason P	-	Sell	$11.96M

Insider Transactions Trends

Date	Buy	Sell
2026 Q3	-	12
2026 Q2	4	84
2026 Q1	3	8
2025 Q4	-	3
2025 Q3	1	5

DYN Ownership FAQ

Who Owns Dyne Therapeutics?

Dyne Therapeutics shareholders are primarily institutional investors at 116.14%, followed by 0.25% insiders and -16.39% retail investors. The average institutional ownership in Dyne Therapeutics's industry, Biotech Stocks , is 49.09%, which Dyne Therapeutics exceeds.

Who owns the most shares of Dyne Therapeutics?

Dyne Therapeutics’s largest shareholders are T. rowe price investment management (30.91M shares, 18.73%), Janus henderson group (13.65M shares, 10.63%), and Blackrock (7.39M shares, 9.11%). Together, they hold 38.47% 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?

Mpm asset management is Dyne Therapeutics’s biggest shareholder by percentage of total assets invested, with 19.40% of its assets in 682.38K Dyne Therapeutics shares, valued at 8.63M$.

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

T. Rowe Price Small-Cap Stock is the top mutual fund holder of Dyne Therapeutics shares, with 4.24% of its total shares outstanding invested in 7M Dyne Therapeutics shares.

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