DYNE THERAPEUTICS INC

Ticker: DYN CUSIP: 26818M108 Class: Common Stock

Quarry LP's Holding History (CIK: 0001965207)

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

Q3 2025

Shares 7,250 Value ($000) $92 Avg Close $11.41 Range $8.06 - $14.35

Q2 2025

Shares 7,000 Value ($000) $67 Avg Close $11.01 Range $6.36 - $15.23

Q1 2025

Shares 4,500 Value ($000) $47 Avg Close $14.30 Range $9.96 - $26.22

Q4 2023

Shares 1,500 Value ($000) $20 Avg Close $9.77 Range $6.40 - $13.88

Q3 2023

Shares 3,200 Value ($000) $29 Avg Close $10.77 Range $8.35 - $12.68

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	7,250	$92	$11.41	$8.06 - $14.35
Q2 2025	7,000	$67	$11.01	$6.36 - $15.23
Q1 2025	4,500	$47	$14.30	$9.96 - $26.22
Q4 2023	1,500	$20	$9.77	$6.40 - $13.88
Q3 2023	3,200	$29	$10.77	$8.35 - $12.68