X0202 4 2007-07-30 0 0000311094 WESTAMERICA BANCORPORATION WABC 0001201513 PAYNE DAVID L 1 1 0 0 Chairman, President & CEO Common Stock 2007-07-30 4 M 0 480 32.7917 A 480 D Common Stock 2007-07-30 4 S 0 480 40.85 D 0 D Common Stock 2007-07-30 4 M 0 2654 32.7917 A 2654 D Common Stock 2007-07-30 4 S 0 2654 40.83 D 0 D Common Stock 2007-07-30 4 M 0 100 32.7917 A 100 D Common Stock 2007-07-30 4 S 0 100 40.82 D 0 D Common Stock 2007-07-30 4 M 0 400 32.7917 A 400 D Common Stock 2007-07-30 4 S 0 400 40.81 D 0 D Common Stock 2007-07-30 4 M 0 600 32.7917 A 600 D Common Stock 2007-07-30 4 S 0 600 40.8 D 0 D Common Stock 2007-07-30 4 M 0 700 32.7917 A 700 D Common Stock 2007-07-30 4 S 0 700 40.79 D 0 D Common Stock 2007-07-30 4 M 0 1294 32.7917 A 1294 D Common Stock 2007-07-30 4 S 0 1294 40.78 D 0 D Common Stock 2007-07-30 4 M 0 2300 32.7917 A 2300 D Common Stock 2007-07-30 4 S 0 2300 40.77 D 0 D Common Stock 10937.342 I ESOP Common Stock 528837 I Gibson Radio and Publishing Company Common Stock 459 I by Daughter Common Stock 462 I by Son Common Stock 219711 I by Trust Non-Qualified Stock Option (right to buy) 32.7917 2007-07-30 4 M 0 480 0 D 1999-01-21 2008-01-21 Common Stock 480 104093 D Non-Qualified Stock Option (right to buy) 32.7917 2007-07-30 4 M 0 2654 0 D 1999-01-21 2008-01-21 Common Stock 2654 101439 D Non-Qualified Stock Option (right to buy) 32.7917 2007-07-30 4 M 0 100 0 D 1999-01-21 2008-01-21 Common Stock 100 101339 D Non-Qualified Stock Option (right to buy) 32.7917 2007-07-30 4 M 0 400 0 D 1999-01-21 2008-01-21 Common Stock 400 100939 D Non-Qualified Stock Option (right to buy) 32.7917 2007-07-30 4 M 0 600 0 D 1999-01-21 2008-01-21 Common Stock 600 100339 D Non-Qualified Stock Option (right to buy) 32.7917 2007-07-30 4 M 0 700 0 D 1999-01-21 2008-01-21 Common Stock 700 99639 D Non-Qualified Stock Option (right to buy) 32.7917 2007-07-30 4 M 0 1294 0 D 1999-01-21 2008-01-21 Common Stock 1294 98345 D Non-Qualified Stock Option (right to buy) 32.7917 2007-07-30 4 M 0 2300 0 D 1999-01-21 2008-01-21 Common Stock 2300 96045 D The reporting person is President and CEO of Gibson Radio and Publishing Company and disclaims beneficial ownership of 528,837 shares of Westamerica common stock. Options vest ratably over three years beginning one year from date of grant. This is filing #3 of three filings for 7/30/07. /s/ David L. Payne 2007-08-01