DYNE THERAPEUTICS INC

Ticker: DYN CUSIP: 26818M108 Class: Common Stock

CANADA PENSION PLAN INVESTMENT BOARD's Holding History (CIK: 0001283718)

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

Q4 2025

Shares 284,000 Value ($000) $5,555 Avg Close $18.94 Range $12.33 - $25.00

Q3 2025

Shares 284,000 Value ($000) $3,593 Avg Close $11.41 Range $8.06 - $14.35

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	284,000	$5,555	$18.94	$12.33 - $25.00
Q3 2025	284,000	$3,593	$11.41	$8.06 - $14.35