WESTAMERICA BANCORPORATION — 4 Filings
540 4 filings on record
This page lists all 4 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 540 4 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 | PRIMARY DOCUMENT | 0000311094-26-000040 | Mar 3, 2026 | Mar 2, 2026 |
| 4 | PRIMARY DOCUMENT | 0000311094-26-000038 | Mar 2, 2026 | — |
| 4 | PRIMARY DOCUMENT | 0000311094-26-000036 | Mar 2, 2026 | — |
| 4 | PRIMARY DOCUMENT | 0000311094-26-000034 | Feb 25, 2026 | Feb 24, 2026 |
| 4 | PRIMARY DOCUMENT | 0000311094-26-000018 | Jan 26, 2026 | Jan 22, 2026 |
| 4 | PRIMARY DOCUMENT | 0000311094-26-000008 | Jan 26, 2026 | Jan 22, 2026 |
| 4 | PRIMARY DOCUMENT | 0000311094-26-000021 | Jan 26, 2026 | Jan 22, 2026 |
| 4 | PRIMARY DOCUMENT | 0000311094-26-000010 | Jan 26, 2026 | Jan 22, 2026 |
| 4 | PRIMARY DOCUMENT | 0000311094-26-000015 | Jan 26, 2026 | Jan 22, 2026 |
| 4 | PRIMARY DOCUMENT | 0000311094-26-000012 | Jan 26, 2026 | Jan 22, 2026 |
| 4 | PRIMARY DOCUMENT | 0001127602-25-019090 | Jul 11, 2025 | Jul 9, 2025 |
| 4 | PRIMARY DOCUMENT | 0001127602-25-019027 | Jul 8, 2025 | Jul 3, 2025 |
| 4 | PRIMARY DOCUMENT | 0001127602-25-012796 | Apr 30, 2025 | Apr 29, 2025 |
| 4 | PRIMARY DOCUMENT | 0001127602-25-012709 | Apr 29, 2025 | Apr 28, 2025 |
| 4 | PRIMARY DOCUMENT | 0001127602-25-012608 | Apr 24, 2025 | Mar 3, 2025 |
| 4 | PRIMARY DOCUMENT | 0001127602-25-012612 | Apr 24, 2025 | — |
| 4 | PRIMARY DOCUMENT | 0001127602-25-012614 | Apr 24, 2025 | — |
| 4 | PRIMARY DOCUMENT | 0001127602-25-008371 | Mar 5, 2025 | Mar 3, 2025 |
| 4 | PRIMARY DOCUMENT | 0001127602-25-008373 | Mar 5, 2025 | Mar 3, 2025 |
| 4 | PRIMARY DOCUMENT | 0001127602-25-008368 | Mar 5, 2025 | Mar 3, 2025 |
| 4 | PRIMARY DOCUMENT | 0001127602-25-002604 | Jan 31, 2025 | Jul 22, 2024 |
| 4 | PRIMARY DOCUMENT | 0001127602-25-002042 | Jan 27, 2025 | Jan 23, 2025 |
| 4 | PRIMARY DOCUMENT | 0001127602-25-002038 | Jan 27, 2025 | Jan 23, 2025 |
| 4 | PRIMARY DOCUMENT | 0001127602-25-002032 | Jan 27, 2025 | Jan 23, 2025 |
| 4 | PRIMARY DOCUMENT | 0001127602-25-002034 | Jan 27, 2025 | Jan 23, 2025 |
| 4 | PRIMARY DOCUMENT | 0001127602-25-002036 | Jan 27, 2025 | Jan 23, 2025 |
| 4 | PRIMARY DOCUMENT | 0001127602-25-002040 | Jan 27, 2025 | Jan 23, 2025 |
| 4 | PRIMARY DOCUMENT | 0001127602-24-021014 | Jul 25, 2024 | Jul 24, 2024 |
| 4 | PRIMARY DOCUMENT | 0001127602-24-019295 | Jun 26, 2024 | Jun 25, 2024 |
| 4 | PRIMARY DOCUMENT | 0001127602-24-013728 | May 1, 2024 | Apr 29, 2024 |
| 4 | PRIMARY DOCUMENT | 0001127602-24-013300 | Apr 24, 2024 | Apr 23, 2024 |
| 4 | PRIMARY DOCUMENT | 0001127602-24-013301 | Apr 24, 2024 | Apr 22, 2024 |
| 4 | PRIMARY DOCUMENT | 0001127602-24-011279 | Mar 27, 2024 | Mar 26, 2024 |
| 4 | PRIMARY DOCUMENT | 0001127602-24-008279 | Mar 4, 2024 | Mar 1, 2024 |
| 4 | PRIMARY DOCUMENT | 0001127602-24-008291 | Mar 4, 2024 | Mar 1, 2024 |
| 4 | PRIMARY DOCUMENT | 0001127602-24-008267 | Mar 4, 2024 | Mar 1, 2024 |
| 4 | PRIMARY DOCUMENT | 0001127602-24-002975 | Feb 1, 2024 | Jan 31, 2024 |
| 4 | PRIMARY DOCUMENT | 0001127602-24-002675 | Jan 30, 2024 | Jan 29, 2024 |
| 4 | PRIMARY DOCUMENT | 0001127602-24-002399 | Jan 29, 2024 | Jan 25, 2024 |
| 4 | PRIMARY DOCUMENT | 0001127602-24-002392 | Jan 29, 2024 | Jan 25, 2024 |
| 4 | PRIMARY DOCUMENT | 0001127602-24-002395 | Jan 29, 2024 | Jan 25, 2024 |
| 4 | PRIMARY DOCUMENT | 0001127602-24-002362 | Jan 26, 2024 | Jan 25, 2024 |
| 4 | PRIMARY DOCUMENT | 0001127602-24-002361 | Jan 26, 2024 | Jan 25, 2024 |
| 4 | PRIMARY DOCUMENT | 0001127602-24-002054 | Jan 24, 2024 | Jan 23, 2024 |
| 4 | PRIMARY DOCUMENT | 0001127602-23-022163 | Aug 7, 2023 | Aug 3, 2023 |
| 4 | PRIMARY DOCUMENT | 0001127602-23-021435 | Jul 27, 2023 | Jul 25, 2023 |
| 4 | PRIMARY DOCUMENT | 0001127602-23-018953 | Jun 20, 2023 | Jun 15, 2023 |
| 4 | PRIMARY DOCUMENT | 0001127602-23-014446 | May 4, 2023 | — |
| 4 | PRIMARY DOCUMENT | 0001127602-23-014449 | May 4, 2023 | — |
| 4 | PRIMARY DOCUMENT | 0001127602-23-013668 | Apr 27, 2023 | — |