XBIOTECH INC

Ticker: XBIT CUSIP: 98400H102 Class: Foreign Stock

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

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

Q4 2025

Shares 8 Value ($000) $0 Avg Close $2.47 Range $2.09 - $3.44

Q3 2025

Shares 8 Value ($000) $0 Avg Close $2.96 Range $2.59 - $3.61

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	8	$0	$2.47	$2.09 - $3.44
Q3 2025	8	$0	$2.96	$2.59 - $3.61