{"schema_version":"secwatch.filing_event.v1","accession":"0001171843-23-003706","form_type":"8-K","ticker":"WABC","cik":"0000311094","company_name":"WESTAMERICA BANCORPORATION","filed_at":"2023-06-02T23:59:59+00:00","discovered_at":"2026-05-14T18:03:41.720350+00:00","generated_at":"2026-06-14T08:37:36.312181+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"Director Catherine Cope MacMillan retires from Westamerica Bancorp board after 38 years","bullets":["Catherine Cope MacMillan retired from the Board effective June 1, 2023, after serving since 1985.","She served on the Loan/Investment, Employee Benefits/Compensation, and Audit Committees, plus the bank board.","No disagreement with the company on any matter relating to operations, policies, or practices."],"urls":{"canonical":"https://secwatch.observer/filing/0001171843-23-003706","json":"https://secwatch.observer/filing/0001171843-23-003706.json","markdown":"https://secwatch.observer/filing/0001171843-23-003706.md","text":"https://secwatch.observer/filing/0001171843-23-003706.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/311094/000117184323003706/0001171843-23-003706-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/311094/000117184323003706/f8k_060223.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-14T08:37:36.312181+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"f56ce4c231","claim":"Catherine Cope MacMillan retired as Director at WESTAMERICA BANCORPORATION.","evidence_excerpt":"Effective June 1, 2023, Catherine Cope MacMillan retired from Westamerica Bancorporation’s (the Company) Board of Directors.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/311094/000117184323003706/0001171843-23-003706-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"retired"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}