Dyne Therapeutics Ownership | Who Owns Dyne Therapeutics?

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Dyne Therapeutics Ownership Summary

Dyne Therapeutics is owned by 14.86% institutional investors, 0.50% insiders, and 84.64% retail investors. Blackrock is the largest institutional shareholder, holding 9.11% of DYN shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 2.74% of its assets in Dyne Therapeutics shares.

DYN Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Dyne Therapeutics	14.86%	0.50%	84.64%
Sector	Healthcare Stocks	42.54%	10.82%	46.64%
Industry	Biotech Stocks	45.21%	10.75%	44.04%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock	7.39M	9.11%	$260.69M
Vanguard group	9.76M	8.57%	$123.47M
Blackrock funding, inc. /de	9.63M	8.46%	$121.88M
Atlas venture life science advisors	9.13M	8.02%	$115.50M
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
Vanguard group	9.76M	0.00%	2.11M
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

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
Norges bank	950.10K	0.00%	950.10K	$22.38M
Polar capital	529.39K	0.03%	529.39K	$6.70M
University of wisconsin foundation	517.75K	5.55%	517.75K	$6.55M
Renaissance	345.50K	0.01%	345.50K	$4.37M

Sold Out

Holder	Change
Ifp advisors	-3.00
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

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
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%
Sep 30, 2024	207	5.08%	111,994,758	0.90%	111	0.59%	117	-7.14%	54	17.39%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard Total Stock Mkt Idx Inv	3.90M	2.74%	827.02K
Vanguard US Total Market Shares ETF	2.65M	2.35%	2.40K
Fidelity Growth Compy Commingled Pl O	1.79M	1.78%	348.61K
Janus Henderson Glb Life Scn I2 USD	2.40M	1.69%	844.64K
iShares Russell 2000 ETF	2.27M	1.60%	-
JPMorgan Small Cap Growth A	1.94M	1.37%	496.51K
Janus Henderson Global Life Sciences D	1.89M	1.33%	80.26K
Janus Henderson Global Life Sciences	1.89M	1.33%	124.72K
Fidelity Growth Compy Commingled Pl S	1.84M	1.29%	2.39K
Fidelity Select Biotechnology	1.61M	1.13%	82.40K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Dec 05, 2025	Cox John	CEO & President	Sell	$55.16K
Dec 05, 2025	Kerr Douglas	Chief Medical Officer	Sell	$18.23K
Dec 05, 2025	Friedl-Naderer Johanna	Chief Commercial Officer	Sell	$2.98K
Sep 05, 2025	Cox John	CEO & President	Sell	$35.40K
Sep 05, 2025	Friedl-Naderer Johanna	Chief Commercial Officer	Sell	$1.93K

Insider Transactions Trends

Date	Buy	Sell
2025 Q4	-	3
2025 Q3	1	5
2025 Q2	-	3
2025 Q1	-	9
2024 Q4	-	24

DYN Ownership FAQ

Who Owns Dyne Therapeutics?

Dyne Therapeutics shareholders are primarily institutional investors at 14.86%, followed by 0.50% insiders and 84.64% retail investors. The average institutional ownership in Dyne Therapeutics's industry, Biotech Stocks , is 45.21%, 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%), Vanguard group (9.76M shares, 8.57%), and Blackrock funding, inc. /de (9.63M shares, 8.46%). Together, they hold 26.15% 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?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of Dyne Therapeutics shares, with 2.74% of its total shares outstanding invested in 3.9M Dyne Therapeutics shares.

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