# EDGAR Filing Document

**Accession Number:** 0000311094
**File Stem:** 0001174947-26-000359
**Filing Date:** 2026-3
**Character Count:** 1257
**Document Hash:** 51e609b9f28b8acef408c73f128958d0
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001174947-26-000359.hdr.sgml**: 20260313

**ACCESSION NUMBER**: 0001174947-26-000359

**CONFORMED SUBMISSION TYPE**: ARS

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251231

**FILED AS OF DATE**: 20260313

**DATE AS OF CHANGE**: 20260313

**EFFECTIVENESS DATE**: 20260313

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** WESTAMERICA BANCORPORATION
- **CENTRAL INDEX KEY:** 0000311094
- **STANDARD INDUSTRIAL CLASSIFICATION:** NATIONAL COMMERCIAL BANKS [6021]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 942156203
- **STATE OF INCORPORATION:** CA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** ARS
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-09383
- **FILM NUMBER:** 26751687

**BUSINESS ADDRESS:**
- **STREET 1:** 1108 FIFTH AVE
- **CITY:** SAN RAFAEL
- **STATE:** CA
- **ZIP:** 94901
- **BUSINESS PHONE:** (707) 863-6000

**MAIL ADDRESS:**
- **STREET 1:** 4550 MANGELS BLVD
- **STREET 2:** A-2Y
- **CITY:** FAIRFIELD
- **STATE:** CA
- **ZIP:** 94534-4082

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** INDEPENDENT BANKSHARES CORP
- **DATE OF NAME CHANGE:** 19830801

### Attached PDF Documents

**Attachment 1:** `ars-77405_wabc.pdf`

_No text found in this document._