Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001283441-06-000007
Filing Date
2006-04-04
Accepted
2006-04-04 14:31:54
Documents
1
Period of Report
2006-04-03

Document Format Files

Seq Description Document Type Size
1 PRIMARY DOCUMENT primary_doc.html 4  
1 PRIMARY DOCUMENT primary_doc.xml 4 7547
  Complete submission text file 0001283441-06-000007.txt   9427
Mailing Address 4550 MANGELS BLVD A-2Y FAIRFIELD CA 94585-1200
Business Address 1108 FIFTH AVE SAN RAFAEL CA 94901 (707) 863-6000
WESTAMERICA BANCORPORATION (Issuer) CIK: 0000311094 (see all company filings)

EIN.: 942156203 | State of Incorp.: CA | Fiscal Year End: 1231
SIC: 6021 National Commercial Banks

Mailing Address
Business Address WESAMERICA BANCORP. 4550 MANGELS BLVD. FAIRFIELD CA 94585
THORSON JOHN A (Reporting) CIK: 0001201516 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-09383 | Film No.: 06737305