DYNE THERAPEUTICS INC

Ticker: DYN CUSIP: 26818M108 Class: Common Stock

Nuveen, LLC's Holding History (CIK: 0001871926)

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

Q4 2025

Shares 621,310 Value ($000) $12,153 Avg Close $18.94 Range $12.33 - $25.00

Q3 2025

Shares 344,897 Value ($000) $4,363 Avg Close $11.41 Range $8.06 - $14.35

Q2 2025

Shares 199,831 Value ($000) $1,902 Avg Close $11.01 Range $6.36 - $15.23

Q1 2025

Shares 223,215 Value ($000) $2,335 Avg Close $14.30 Range $9.96 - $26.22

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	621,310	$12,153	$18.94	$12.33 - $25.00
Q3 2025	344,897	$4,363	$11.41	$8.06 - $14.35
Q2 2025	199,831	$1,902	$11.01	$6.36 - $15.23
Q1 2025	223,215	$2,335	$14.30	$9.96 - $26.22