DYNE THERAPEUTICS INC

Ticker: DYN CUSIP: 26818M108 Class: Common Stock

J. Goldman & Co LP's Holding History (CIK: 0001412741)

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

Q4 2025

Shares 46,010 Value ($000) $900 Avg Close $18.94 Range $12.33 - $25.00

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	46,010	$900	$18.94	$12.33 - $25.00