WESTAMERICA BANCORPORATION

Ticker: WABC CUSIP: 957090103 Class: Common Stock

SBI Securities Co., Ltd.'s Holding History (CIK: 0001851815)

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

Q4 2025

Shares 6 Value ($000) $0 Avg Close $47.37 Range $44.09 - $50.85

Q3 2025

Shares 3 Value ($000) $0 Avg Close $48.41 Range $45.39 - $50.63

Q2 2025

Shares 3 Value ($000) $0 Avg Close $46.41 Range $40.44 - $50.21

Q1 2025

Shares 2 Value ($000) $0 Avg Close $48.88 Range $46.41 - $51.42

Q4 2024

Shares 3 Value ($000) $0 Avg Close $50.92 Range $44.42 - $57.25

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	6	$0	$47.37	$44.09 - $50.85
Q3 2025	3	$0	$48.41	$45.39 - $50.63
Q2 2025	3	$0	$46.41	$40.44 - $50.21
Q1 2025	2	$0	$48.88	$46.41 - $51.42
Q4 2024	3	$0	$50.92	$44.42 - $57.25