Dyne Therapeutics, Inc.

DYNNASDAQ

$15.20-0.62 (-3.92%)as of Oct 2, 2026

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Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

Dyne Therapeutics, Inc. price and activity chart data

Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (+21.1%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
T. Rowe Price Investment Management, Inc.	18.66%	$687M	0.45%	Add 0.41%
BlackRock, Inc.	7.49%	$276M	0.00%	Not reported
Jupiter Topco LLC	7.24%	$267M	0.11%	Not reported
FMR LLC	6.76%	$249M	0.01%	Not reported
State Street Corp	4.50%	$166M	0.00%	Not reported
Orbis Allan Gray Ltd	4.23%	$156M	0.53%	Add 3.61%
Atlas Venture Life Science Advisors, LLC	4.10%	$151M	17.14%	Reduce 25.52%
Vanguard Capital Management LLC	3.81%	$140M	0.00%	Not reported
TCG Crossover Management, LLC	2.79%	$103M	2.46%	Not reported
Vanguard Portfolio Management LLC	2.44%	$89.9M	0.00%	Not reported
FCPM III Services B.V.	2.32%	$85.5M	11.39%	Reduce 17.14%
Geode Capital Management, LLC	2.26%	$83.2M	0.00%	Not reported
Vestal Point Capital, LP	2.04%	$75M	1.75%	Reduce 15.63%
Orbimed Advisors LLC	1.95%	$71.9M	1.33%	Not reported
Frazier Life Sciences Management, L.P.	1.90%	$70M	1.53%	Not reported
JPMorgan Chase & Co	1.90%	$67.2M	0.00%	Not reported
Armistice Capital, LLC	1.86%	$68.6M	0.84%	Not reported
Perceptive Advisors LLC	1.62%	$59.7M	0.90%	Reduce 42.40%
Logos Global Management LP	1.54%	$56.6M	2.44%	Add 82.14%
Bank of America Corp	1.35%	$49.6M	0.00%	Not reported
Venrock Adviser, LLC	1.31%	$48.3M	1.46%	Not reported
Goldman Sachs Group Inc	1.30%	$47.9M	0.00%	Not reported
Siren, L.L.C.	1.29%	$47.3M	0.96%	Reduce 4.49%
Dimensional Fund Advisors LP	1.17%	$43.2M	0.01%	Not reported
MPM Bioimpact LLC	1.16%	$42.7M	2.60%	Add 36.50%
Samlyn Capital, LLC	1.06%	$39M	0.63%	Reduce 8.73%
Sofinnova Investments, Inc.	1.00%	$36.8M	1.90%	Add 1.50%
Palo Alto Investors LP	0.99%	$36.6M	5.06%	Reduce 0.33%
Vivo Capital, LLC	0.94%	$34.6M	3.16%	Not reported
Aberdeen Group plc	0.93%	$34.2M	0.05%	Add 7.62%
Deep Track Capital, LP	0.91%	$33.3M	0.48%	Reduce 25.00%
Marshall Wace, LLP	0.90%	$33.1M	0.03%	Not reported
Polar Capital Holdings Plc	0.78%	$28.6M	0.07%	Reduce 5.32%
Northern Trust Corp	0.77%	$28.4M	0.00%	Not reported
Charles Schwab Investment Management Inc	0.73%	$26.7M	0.00%	Not reported
Citadel Advisors LLC	0.69%	$25.4M	0.00%	Not reported
Saturn V Capital Management LP	0.64%	$23.5M	3.37%	Add 9.40%
Vanguard Fiduciary Trust Co	0.60%	$22M	0.00%	Not reported
Novo Holdings A/S	0.58%	$21.3M	1.24%	New Not reported
Rock Springs Capital Management LP	0.57%	$20.9M	1.02%	Reduce 3.09%
Braidwell LP	0.56%	$20.5M	0.76%	Reduce 45.21%
Frontier Capital Management Co LLC	0.53%	$19.4M	0.18%	Add 6.36%
Baker Bros. Advisors LP	0.49%	$18.1M	0.09%	Not reported
Fiera Capital Corp	0.48%	$17.5M	0.06%	Reduce 42.78%
Morgan Stanley	0.45%	$16.6M	0.00%	Not reported
Artisan Partners Limited Partnership	0.40%	$14.7M	0.02%	Add 6.51%
Raymond James Financial Inc	0.35%	$12.8M	0.00%	Not reported
Algert Global LLC	0.31%	$11.2M	0.13%	Not reported
Wasatch Advisors LP	0.27%	$9.85M	0.06%	Not reported
UBS Group AG	0.27%	$9.85M	0.00%	Not reported

50 of 233 holders

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