WESTAMERICA BANCORPORATION

Ticker: WABC CUSIP: 957090103 Class: Common Stock

Y-Intercept (Hong Kong) Ltd's Holding History (CIK: 0001772875)

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

Q4 2025

Shares 50,526 Value ($000) $2,417 Avg Close $47.37 Range $44.09 - $50.85

Q3 2025

Shares 58,718 Value ($000) $2,935 Avg Close $48.41 Range $45.39 - $50.63

Q2 2025

Shares 15,218 Value ($000) $737 Avg Close $46.41 Range $40.44 - $50.21

Q2 2024

Shares 5,541 Value ($000) $269 Avg Close $44.71 Range $41.94 - $47.91

Q2 2023

Shares 10,841 Value ($000) $415 Avg Close $36.02 Range $31.77 - $39.59

Q1 2023

Shares 10,349 Value ($000) $458 Avg Close $47.96 Range $39.01 - $52.93

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	50,526	$2,417	$47.37	$44.09 - $50.85
Q3 2025	58,718	$2,935	$48.41	$45.39 - $50.63
Q2 2025	15,218	$737	$46.41	$40.44 - $50.21
Q2 2024	5,541	$269	$44.71	$41.94 - $47.91
Q2 2023	10,841	$415	$36.02	$31.77 - $39.59
Q1 2023	10,349	$458	$47.96	$39.01 - $52.93