WESTAMERICA BANCORPORATION

Ticker: WABC CUSIP: 957090103 Class: Common Stock

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

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

Q3 2018

Shares 126 Value ($000) $8 Avg Close $48.42 Range $42.38 - $51.15

Q1 2018

Shares 140 Value ($000) $8 Avg Close $46.10 Range $42.86 - $48.73

Q4 2017

Shares 3,906 Value ($000) $233 Avg Close $45.39 Range $41.22 - $49.73

Q4 2013

Shares 661 Value ($000) $37 Avg Close $36.29 Range $32.69 - $39.26

Q3 2013

Shares 424 Value ($000) $21 Avg Close $32.64 Range $30.72 - $34.37

Q2 2013

Shares 2,066 Value ($000) $94 Avg Close $29.77 Range $27.86 - $31.27

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	126	$8	$48.42	$42.38 - $51.15
Q1 2018	140	$8	$46.10	$42.86 - $48.73
Q4 2017	3,906	$233	$45.39	$41.22 - $49.73
Q4 2013	661	$37	$36.29	$32.69 - $39.26
Q3 2013	424	$21	$32.64	$30.72 - $34.37
Q2 2013	2,066	$94	$29.77	$27.86 - $31.27