ZYMEWORKS INC

Ticker: ZYME CUSIP: 98985Y108 Class: Common Stock

Optiver Holding B.V.'s Holding History (CIK: 0001859606)

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

Q4 2025

Shares 1,148 Value ($000) $30 Avg Close $21.81 Range $16.00 - $28.49

Q3 2025

Shares 1,510 Value ($000) $26 Avg Close $14.31 Range $11.51 - $17.60

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,148	$30	$21.81	$16.00 - $28.49
Q3 2025	1,510	$26	$14.31	$11.51 - $17.60