Mailing Address 4550 MANGELS BLVD A-2Y FAIRFIELD CA 94534-4082
Business Address 1108 FIFTH AVE SAN RAFAEL CA 94901 (707) 863-6000
WESTAMERICA BANCORPORATION CIK#: 0000311094 (see all company filings)

SIC: 6021 - NATIONAL COMMERCIAL BANKS
State location: CA | State of Inc.: CA | Fiscal Year End: 1231
(CF Office: 02 Finance)
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File Number: 001-09383

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Items 1 - 40  001-09383 Filings RSS Feed
Filings Format Description Filing Date File/Film Number
ARS  Documents Annual Report to Security Holders
Acc-no: 0001174947-25-000337 (34 Act)  Size: 4 MB
2025-03-14 001-09383
25737938
DEFA14A  Documents Additional definitive proxy soliciting materials and Rule 14(a)(12) material
Acc-no: 0001174947-25-000335 (34 Act)  Size: 825 KB
2025-03-14 001-09383
25737931
DEF 14A  Documents   Interactive Data Other definitive proxy statements
Acc-no: 0001174947-25-000333 (34 Act)  Size: 3 MB
2025-03-14 001-09383
25737925
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001127602-25-008373 (34 Act)  Size: 5 KB
2025-03-05 001-09383
25712702
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001127602-25-008371 (34 Act)  Size: 5 KB
2025-03-05 001-09383
25712678
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001127602-25-008368 (34 Act)  Size: 5 KB
2025-03-05 001-09383
25712604
10-K  Documents   Interactive Data Annual report [Section 13 and 15(d), not S-K Item 405]
Acc-no: 0001171843-25-001156 (34 Act)  Size: 23 MB
2025-02-28 001-09383
25691321
8-K  Documents   Interactive Data Current report, items 8.01 and 9.01
Acc-no: 0001171843-25-001131 (34 Act)  Size: 218 KB
2025-02-27 001-09383
25680442
3  Documents Initial statement of beneficial ownership of securities
Acc-no: 0001127602-25-003335 (34 Act)  Size: 4 KB
2025-02-06 001-09383
25596535
4/A  Documents [Amend] Statement of changes in beneficial ownership of securities
Acc-no: 0001127602-25-002610 (34 Act)  Size: 7 KB
2025-01-31 001-09383
25578359
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001127602-25-002604 (34 Act)  Size: 6 KB
2025-01-31 001-09383
25578255
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001127602-25-002042 (34 Act)  Size: 7 KB
2025-01-27 001-09383
25560674
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001127602-25-002040 (34 Act)  Size: 7 KB
2025-01-27 001-09383
25560672
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001127602-25-002038 (34 Act)  Size: 8 KB
2025-01-27 001-09383
25560671
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001127602-25-002036 (34 Act)  Size: 7 KB
2025-01-27 001-09383
25560668
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001127602-25-002034 (34 Act)  Size: 5 KB
2025-01-27 001-09383
25560651
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001127602-25-002032 (34 Act)  Size: 11 KB
2025-01-27 001-09383
25560650
8-K  Documents   Interactive Data Current report, item 5.02
Acc-no: 0001171843-25-000393 (34 Act)  Size: 193 KB
2025-01-23 001-09383
25549915
8-K  Documents   Interactive Data Current report, items 8.01 and 9.01
Acc-no: 0001171843-25-000392 (34 Act)  Size: 218 KB
2025-01-23 001-09383
25549850
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001171843-25-000282 (34 Act)  Size: 972 KB
2025-01-16 001-09383
25535034
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0001171843-24-006167 (34 Act)  Size: 16 MB
2024-11-08 001-09383
241439162
8-K  Documents   Interactive Data Current report, items 8.01 and 9.01
Acc-no: 0001171843-24-005810 (34 Act)  Size: 217 KB
2024-10-24 001-09383
241391911
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001171843-24-005682 (34 Act)  Size: 892 KB
2024-10-17 001-09383
241376716
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0001171843-24-004595 (34 Act)  Size: 16 MB
2024-08-08 001-09383
241187628
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001127602-24-021014 (34 Act)  Size: 5 KB
2024-07-25 001-09383
241143205
8-K  Documents   Interactive Data Current report, items 8.01 and 9.01
Acc-no: 0001171843-24-004138 (34 Act)  Size: 218 KB
2024-07-25 001-09383
241140944
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0001171843-24-004008 (34 Act)  Size: 890 KB
2024-07-18 001-09383
241124399
3  Documents Initial statement of beneficial ownership of securities
Acc-no: 0001127602-24-020255 (34 Act)  Size: 7 KB
2024-07-09 001-09383
241108387
11-K  Documents Annual report of employee stock purchase, savings and similar plans
Acc-no: 0001171843-24-003698 (34 Act)  Size: 247 KB
2024-06-28 001-09383
241084484
8-K  Documents   Interactive Data Current report, item 5.02
Acc-no: 0001171843-24-003696 (34 Act)  Size: 194 KB
2024-06-28 001-09383
241083440
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001127602-24-019295 (34 Act)  Size: 5 KB
2024-06-26 001-09383
241074729
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0001171843-24-002705 (34 Act)  Size: 15 MB
2024-05-09 001-09383
24929654
8-K/A  Documents   Interactive Data [Amend] Current report, item 5.07
Acc-no: 0001171843-24-002572 (34 Act)  Size: 195 KB
2024-05-06 001-09383
24917557
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001127602-24-013728 (34 Act)  Size: 5 KB
2024-05-01 001-09383
24902187
144  Documents Report of proposed sale of securities
Acc-no: 0001921094-24-000549 (33 Act)  Size: 4 KB
2024-04-29 001-09383
24891171
8-K  Documents   Interactive Data Current report, item 5.07
Acc-no: 0001171843-24-002292 (34 Act)  Size: 195 KB
2024-04-29 001-09383
24885510
8-K  Documents   Interactive Data Current report, items 8.01 and 9.01
Acc-no: 0001171843-24-002231 (34 Act)  Size: 217 KB
2024-04-25 001-09383
24874341
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001127602-24-013301 (34 Act)  Size: 5 KB
2024-04-24 001-09383
24870338
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0001127602-24-013300 (34 Act)  Size: 4 KB
2024-04-24 001-09383
24870198
144  Documents Report of proposed sale of securities
Acc-no: 0001921094-24-000538 (33 Act)  Size: 4 KB
2024-04-22 001-09383
24861690