WESTAMERICA BANCORPORATION — 4/A Filings
23 4/A filings on record
This page lists all 4/A filings submitted to the SEC by WESTAMERICA BANCORPORATION (WABC), sorted by most recent first. Each row links to the full filing on EdgarLookup. WESTAMERICA BANCORPORATION has filed 23 4/A documents with the SEC since 2005. To view all SEC filings by WESTAMERICA BANCORPORATION, see the full filings list.
All
10-K
10-K/A
10-Q
11-K
144
15-12G
15-12G/A
3
4
4/A
424B3
424B5
425
5
8-A12B
8-A12G/A
8-K
8-K/A
ARS
CORRESP
DEF 14A
DEFA14A
DEFR14A
NT 11-K
PRE 14A
S-3ASR
S-4
S-4/A
S-8
S-8 POS
SC 13D
SC 13G
SC 13G/A
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 4/A | PRIMARY DOCUMENT | 0000311094-26-000023 | Jan 28, 2026 | Jan 22, 2026 |
| 4/A | PRIMARY DOCUMENT | 0001127602-25-002610 | Jan 31, 2025 | Jan 23, 2025 |
| 4/A | PRIMARY DOCUMENT | 0001127602-23-003024 | Feb 2, 2023 | Jan 26, 2023 |
| 4/A | PRIMARY DOCUMENT | 0001127602-21-009313 | Mar 3, 2021 | Mar 1, 2021 |
| 4/A | PRIMARY DOCUMENT | 0001127602-21-009305 | Mar 3, 2021 | Mar 1, 2021 |
| 4/A | PRIMARY DOCUMENT | 0001127602-13-030716 | Nov 5, 2013 | Oct 30, 2013 |
| 4/A | PRIMARY DOCUMENT | 0001127602-11-002739 | Jan 28, 2011 | Jan 26, 2011 |
| 4/A | PRIMARY DOCUMENT | 0001127602-10-002336 | Jan 27, 2010 | Jan 25, 2010 |
| 4/A | PRIMARY DOCUMENT | 0001127602-09-008526 | Apr 2, 2009 | Mar 31, 2009 |
| 4/A | PRIMARY DOCUMENT | 0001127602-09-001976 | Jan 29, 2009 | Jan 28, 2009 |
| 4/A | PRIMARY DOCUMENT | 0001283441-08-000025 | Apr 8, 2008 | Mar 31, 2008 |
| 4/A | PRIMARY DOCUMENT | 0001283441-07-000035 | Oct 30, 2007 | Oct 25, 2007 |
| 4/A | PRIMARY DOCUMENT | 0001283441-07-000034 | Oct 30, 2007 | Oct 25, 2007 |
| 4/A | PRIMARY DOCUMENT | 0001283441-07-000033 | Oct 30, 2007 | Oct 25, 2007 |
| 4/A | PRIMARY DOCUMENT | 0001283441-05-000012 | Apr 5, 2005 | Apr 1, 2005 |
| 4/A | PRIMARY DOCUMENT | 0001283441-05-000009 | Feb 11, 2005 | Nov 2, 2004 |
| 4/A | PRIMARY DOCUMENT | 0001283441-05-000008 | Feb 11, 2005 | Aug 31, 2004 |
| 4/A | PRIMARY DOCUMENT | 0001283441-04-000023 | Oct 28, 2004 | Oct 22, 2004 |
| 4/A | PRIMARY DOCUMENT | 0001283441-04-000022 | Oct 27, 2004 | Oct 22, 2004 |
| 4/A | PRIMARY DOCUMENT | 0001283441-04-000021 | Oct 27, 2004 | Oct 25, 2004 |
| 4/A | PRIMARY DOCUMENT | 0001283441-04-000009 | Apr 21, 2004 | Apr 20, 2004 |
| 4/A | PRIMARY DOCUMENT | 0000311094-04-000020 | Feb 13, 2004 | Jan 25, 2004 |
| 4/A | 4/A | 0001201516-03-000002 | Apr 15, 2003 | — |