WESTAMERICA BANCORPORATION

Ticker: WABC CUSIP: 957090103 Class: Common Stock

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

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

Q3 2025

Shares 128 Value ($000) $6 Avg Close $48.41 Range $45.39 - $50.63

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	128	$6	$48.41	$45.39 - $50.63