DYNE THERAPEUTICS INC

Ticker: DYN CUSIP: 26818M108 Class: Common Stock

Engineers Gate Manager LP's Holding History (CIK: 0001620220)

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

Q4 2025

Shares 21,619 Value ($000) $423 Avg Close $18.94 Range $12.33 - $25.00

Q3 2025

Shares 102,991 Value ($000) $1,303 Avg Close $11.41 Range $8.06 - $14.35

Q2 2025

Shares 172,469 Value ($000) $1,642 Avg Close $11.01 Range $6.36 - $15.23

Q1 2025

Shares 84,918 Value ($000) $888 Avg Close $14.30 Range $9.96 - $26.22

Q3 2024

Shares 9,776 Value ($000) $351 Avg Close $39.80 Range $23.55 - $47.45

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	21,619	$423	$18.94	$12.33 - $25.00
Q3 2025	102,991	$1,303	$11.41	$8.06 - $14.35
Q2 2025	172,469	$1,642	$11.01	$6.36 - $15.23
Q1 2025	84,918	$888	$14.30	$9.96 - $26.22
Q3 2024	9,776	$351	$39.80	$23.55 - $47.45