Group One Trading’s Dyne Therapeutics DYN Stock Holding History

Group One Trading’s Portfolio DYN Stock Details DYN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-3,600	Closed	-$70.4K	–	7886
2025 Q4	$70.4K	Sell	3,600 -100	-3%	-$1.89K	﹤0.01%	5296
2025 Q3	$46.8K	Buy	3,700 +2,600	+236%	+$29.7K	﹤0.01%	6020
2025 Q2	$10.5K	Buy	+1,100	New	+$12.1K	﹤0.01%	6690
2025 Q1	–	Sell	-5,100	Closed	-$120K	–	7775
2024 Q4	$120K	Sell	5,100 -4,600	-47%	-$136K	﹤0.01%	4361
2024 Q3	$348K	Buy	+9,700	New	+$386K	﹤0.01%	3130
2024 Q2	–	Sell	-19,800	Closed	-$562K	–	6894
2024 Q1	$562K	Buy	19,800 +17,700	+843%	+$400K	﹤0.01%	2616
2023 Q4	$27.9K	Sell	2,100 -4,100	-66%	-$40K	﹤0.01%	5497
2023 Q3	$55.6K	Buy	+6,200	New	+$66.8K	﹤0.01%	4997
2023 Q2	–	Sell	-100	Closed	-$1.15K	–	7768
2023 Q1	$1.15K	Sell	100 -500	-83%	-$6.49K	﹤0.01%	6762
2022 Q4	$6.95K	Buy	+600	New	+$6.94K	﹤0.01%	6191

Other funds holding DYN

T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return

Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

AVLSA

Atlas Venture Life Science Advisors Cambridge, Massachusetts $790M AUM 223.66% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

OAG

Orbis Allan Gray Hamilton, Bermuda $23.7B AUM 65.43% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Perceptive Advisors New York $5.12B AUM 314.02% 1-Year Est. Return

FIS

FCPM III Services Naarden, Netherlands $722M AUM 73.61% 1-Year Est. Return

Group One Trading's DYN Position: Q1 2026 in Review

Group One Trading increased its Dyne Therapeutics (DYN) stake by 65% in Q1 2026, buying an estimated $7.29K and bringing the position to 1,073 shares worth $19.5K. The position accounts for ﹤0.01% of the portfolio, ranked #5987.

Group One Trading first reported a position in DYN in Q3 2023 and has held it in 10 quarters since. The position peaked at $1.05M in Q4 2023. 227 funds tracked by Wall St. Rank hold DYN as of Q1 2026.

Group One Trading held 1,073 shares of Dyne Therapeutics worth $19.5K as of Q1 2026.
Group One Trading bought 423 Dyne Therapeutics shares in Q1 2026, an estimated $7.29K.
Dyne Therapeutics made up ﹤0.01% of Group One Trading's portfolio in Q1 2026, its #5987 holding.
Group One Trading first reported a position in Dyne Therapeutics in Q3 2023 and has held it in 10 quarters since.
Group One Trading's Dyne Therapeutics position peaked at $1.05M in Q4 2023.
227 funds tracked by Wall St. Rank held Dyne Therapeutics as of Q1 2026.

Based on Group One Trading's 13F filing for Q1 2026, filed 13 May 2026.