WABC - CIK 0000311094
WESTAMERICA BANCORPORATION has filed 1,262 documents with the SEC between 1994 and 2026. The most frequent type is insider trade (544 filings), alongside the regular cadence of annual reports, quarterly reports, and event disclosures every public company must make. Use the filters to focus on one filing type, or flip the sort to trace the company's history from its earliest paperwork.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| Filing | Type | Filed | Period covered |
|---|---|---|---|
| Major company event | 8-K | 2020-07-24 | 2020-07-23 |
| Major company event | 8-K | 2020-07-23 | 2020-07-23 |
| Major company event | 8-K | 2020-07-16 | 2020-07-16 |
| Employee plan annual report | 11-K | 2020-06-26 | 2019-12-31 |
| Quarterly report | 10-Q | 2020-05-06 | 2020-03-31 |
| Major company event | 8-K | 2020-04-24 | 2020-04-24 |
| Major company event | 8-K | 2020-04-23 | 2020-04-23 |
| Major company event | 8-K | 2020-04-16 | 2020-04-16 |
| Proxy materials | DEFA14A | 2020-03-09 | - |
| Proxy statement | DEF 14A | 2020-03-09 | 2020-04-23 |
| Insider trade | 4 | 2020-03-04 | 2020-03-02 |
| Insider trade | 4 | 2020-03-04 | 2020-03-02 |
| Annual report | 10-K | 2020-02-28 | 2019-12-31 |
| Passive ownership stake (update) | SC 13G/A | 2020-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 2020-02-12 | - |
| Passive ownership stake (update) | SC 13G/A | 2020-02-12 | - |
| Passive ownership stake (update) | SC 13G/A | 2020-02-11 | - |
| Insider trade | 4 | 2020-02-04 | 2020-02-03 |
| Passive ownership stake (update) | SC 13G/A | 2020-02-04 | - |
| Insider trade | 4 | 2020-01-28 | 2020-01-23 |
| Insider trade | 4 | 2020-01-28 | 2020-01-23 |
| Insider trade | 4 | 2020-01-28 | 2020-01-23 |
| New insider ownership | 3 | 2020-01-24 | 2020-01-24 |
| Insider trade | 4 | 2020-01-24 | 2020-01-22 |
| Major company event | 8-K | 2020-01-23 | 2020-01-23 |
| Major company event | 8-K | 2020-01-16 | 2020-01-16 |
| New insider ownership | 3 | 2020-01-10 | 2020-01-01 |
| Major company event | 8-K | 2019-12-31 | 2019-12-31 |
| Major company event | 8-K | 2019-12-20 | 2019-12-20 |
| Quarterly report | 10-Q | 2019-11-04 | 2019-09-30 |
| Insider trade | 4 | 2019-10-25 | 2019-10-24 |
| Major company event | 8-K | 2019-10-24 | 2019-10-24 |
| Insider trade | 4 | 2019-10-24 | 2019-06-27 |
| Major company event | 8-K | 2019-10-17 | 2019-10-17 |
| S-8 POS | - | 2019-09-27 | - |
| Employee stock plan | S-8 | 2019-09-27 | - |
| New insider ownership | 3 | 2019-09-27 | 2019-09-27 |
| Quarterly report | 10-Q | 2019-08-05 | 2019-06-30 |
| Major company event | 8-K | 2019-07-25 | 2019-07-25 |
| Major company event | 8-K | 2019-07-18 | 2019-07-18 |
| Passive ownership stake (update) | SC 13G/A | 2019-07-10 | - |
| Major company event | 8-K | 2019-06-28 | 2019-06-28 |
| Employee plan annual report | 11-K | 2019-06-27 | 2018-12-31 |
| Quarterly report | 10-Q | 2019-05-06 | 2019-03-31 |
| Insider trade | 4 | 2019-05-01 | 2019-04-30 |
| Major company event | 8-K | 2019-04-29 | 2019-04-29 |
| Major company event | 8-K | 2019-04-25 | 2019-04-25 |
| Major company event | 8-K | 2019-04-18 | 2019-04-18 |
| Insider trade | 4 | 2019-04-03 | 2019-04-01 |
| Insider trade | 4 | 2019-04-03 | 2019-04-01 |