DYNE THERAPEUTICS INC

Ticker: DYN CUSIP: 26818M108 Class: Common Stock

OPPENHEIMER & CO INC's Holding History (CIK: 0000822581)

Note: Option positions (PUT/CALL) are excluded.

Q3 2025

Shares 11,364 Value ($000) $144 Avg Close $11.41 Range $8.06 - $14.35

Q2 2025

Shares 34,674 Value ($000) $330 Avg Close $11.01 Range $6.36 - $15.23

Q1 2025

Shares 34,936 Value ($000) $365 Avg Close $14.30 Range $9.96 - $26.22

Q4 2024

Shares 34,715 Value ($000) $818 Avg Close $29.58 Range $23.05 - $35.90

Q3 2024

Shares 40,091 Value ($000) $1,440 Avg Close $39.80 Range $23.55 - $47.45

Q2 2024

Shares 38,455 Value ($000) $1,357 Avg Close $29.06 Range $23.11 - $36.60

Q1 2024

Shares 28,529 Value ($000) $810 Avg Close $22.62 Range $12.33 - $30.27

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	11,364	$144	$11.41	$8.06 - $14.35
Q2 2025	34,674	$330	$11.01	$6.36 - $15.23
Q1 2025	34,936	$365	$14.30	$9.96 - $26.22
Q4 2024	34,715	$818	$29.58	$23.05 - $35.90
Q3 2024	40,091	$1,440	$39.80	$23.55 - $47.45
Q2 2024	38,455	$1,357	$29.06	$23.11 - $36.60
Q1 2024	28,529	$810	$22.62	$12.33 - $30.27