DYNE THERAPEUTICS INC

Ticker: DYN CUSIP: 26818M108 Class: Common Stock

FOX RUN MANAGEMENT, L.L.C.'s Holding History (CIK: 0001533457)

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

Q4 2025

Shares 16,450 Value ($000) $322 Avg Close $18.94 Range $12.33 - $25.00

Q1 2025

Shares 17,088 Value ($000) $179 Avg Close $14.30 Range $9.96 - $26.22

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	16,450	$322	$18.94	$12.33 - $25.00
Q1 2025	17,088	$179	$14.30	$9.96 - $26.22