Dyne Therapeutics Ownership | Who Owns Dyne Therapeutics?

Dyne Therapeutics Ownership Summary

Dyne Therapeutics is owned by 12.46% institutional investors, 0.44% insiders, and 87.11% retail investors. Blackrock is the largest institutional shareholder, holding 9.11% of DYN shares. T. Rowe Price Small-Cap Stock is the top mutual fund, with 3.34% of its assets in Dyne Therapeutics shares.

DYN Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Dyne Therapeutics	12.46%	0.44%	87.11%
Sector	Healthcare Stocks	232.64%	10.66%	-143.30%
Industry	Biotech Stocks	382.13%	10.41%	-292.54%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock	7.39M	9.11%	$260.69M
Atlas venture life science advisors	9.13M	8.02%	$115.50M
Vanguard group	11.22M	7.91%	$219.38M
Blackrock funding, inc. /de	11.19M	7.89%	$218.89M
Janus henderson group	7.38M	7.31%	$173.81M
Fcpm iii services b.v.	5.46M	4.80%	$69.11M
Fmr	5.40M	4.74%	$68.33M
State street	5.27M	4.63%	$66.65M
Siren	4.73M	4.15%	$59.82M
Tcg crossover management	4.62M	4.05%	$58.38M

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	9.13M	15.35%	$115.50M
Fcpm iii services b.v.	5.46M	13.81%	$69.11M
Saturn v capital management	2.67M	7.42%	$33.83M
University of wisconsin foundation	517.75K	5.55%	$6.55M
Bioimpact capital	1.45M	3.00%	$18.30M
Palo alto investors lp	1.26M	2.96%	$15.97M
Tcg crossover management	4.62M	2.87%	$58.38M
Logos global management lp	2.40M	2.72%	$30.36M
Vivo capital	2.61M	2.66%	$33.08M

Top Buyers

Holder	Shares	% Assets	Change
Marshall wace, llp	3.01M	0.04%	2.57M
Vestal point capital, lp	2.77M	1.59%	2.05M
Deep track capital, lp	2.00M	0.71%	2.00M
Blackrock	7.39M	0.01%	2.00M
State street	5.27M	0.00%	1.91M

Top Sellers

Holder	Shares	% Assets	Change
Ra capital management	-	-	-9.71M
Holocene advisors, lp	-	-	-2.35M
Jefferies financial group	-	-	-1.80M
Perceptive advisors	540.44K	0.20%	-1.71M
Jennison associates	-	-	-1.21M

New Positions

Holder	Shares	% Assets	Change	Value
Paradigm biocapital advisors lp	1.90M	0.68%	1.90M	$24.02M
Polar capital	529.39K	0.03%	529.39K	$6.70M
University of wisconsin foundation	517.75K	5.55%	517.75K	$6.55M
Federated hermes	464.80K	0.02%	464.80K	$9.09M
Clearbridge investments	407.79K	0.01%	407.79K	$7.98M

Sold Out

Holder	Change
Nelson, van denburg & campbell wealth management group	-9.00
J.safra asset management	-11.00
Cva family office	-12.00
Federation des caisses desjardins du quebec	-20.00
Amundi	-21.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
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%
Dec 31, 2024	204	-1.45%	111,580,268	-0.38%	110	0.90%	105	-10.26%	62	14.81%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
T. Rowe Price Small-Cap Stock	5.52M	3.34%	78.51K
T. Rowe Price US Small-Cap Core Equity	5.44M	3.30%	5.17M
Vanguard Total Stock Mkt Idx Inv	4.62M	2.80%	10.57K
State Street® SPDR® S&P® Biotech ETF	3.92M	2.37%	21.57K
Vanguard US Total Market Shares ETF	2.65M	2.35%	2.40K
iShares Russell 2000 ETF	3.01M	1.83%	2.37M
T. Rowe Price Instl Small-Cap Stock	3.01M	1.83%	62.30K
Fidelity Growth Compy Commingled Pl O	1.79M	1.78%	348.61K
T. Rowe Price Small-Cap Value	2.85M	1.73%	383.02K
T. Rowe Price U.S. SC Core Eq Tr-D	2.56M	1.56%	2.43M

Recent Insider Transactions

Date	Name	Role	Activity	Value
Mar 30, 2026	Posner Brian S	-	Buy	$34.16K
Mar 11, 2026	Posner Brian S	-	Buy	$38.70K
Mar 11, 2026	Kersten Dirk	-	Sell	$2.53M
Mar 10, 2026	Kersten Dirk	-	Sell	$172.69K
Mar 10, 2026	Kersten Dirk	-	Sell	$4.25M

Insider Transactions Trends

Date	Buy	Sell
2026 Q1	3	8
2025 Q4	-	3
2025 Q3	1	5
2025 Q2	-	3
2025 Q1	-	9

DYN Ownership FAQ

Who Owns Dyne Therapeutics?

Dyne Therapeutics shareholders are primarily institutional investors at 12.46%, followed by 0.44% insiders and 87.10% retail investors. The average institutional ownership in Dyne Therapeutics's industry, Biotech Stocks , is 382.13%, which Dyne Therapeutics falls below.

Who owns the most shares of Dyne Therapeutics?

Dyne Therapeutics’s largest shareholders are Blackrock (7.39M shares, 9.11%), Atlas venture life science advisors (9.13M shares, 8.02%), and Vanguard group (11.22M shares, 7.91%). Together, they hold 25.04% 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 3.34% of its total shares outstanding invested in 5.52M Dyne Therapeutics shares.

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