{"schema_version":"secwatch.filing_event.v1","accession":"0001171843-26-002706","form_type":"8-K","ticker":"WABC","cik":"0000311094","company_name":"WESTAMERICA BANCORPORATION","filed_at":"2026-04-24T23:59:59+00:00","discovered_at":"2026-05-14T18:02:33.545887+00:00","generated_at":"2026-05-15T04:17:38.713982+00:00","sec_items":["8.01","9.01"],"event_type":"other_material","sentiment":"positive","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"Westamerica Bancorporation boosts stock buyback authorization by 2M shares, 11.8% of outstanding","bullets":["Board approved 2,000,000 additional shares for repurchase; total remaining authorization 2,785,023 shares.","Repurchase plan runs through December 31, 2026; shares may be bought on open market or privately.","Increased authorization reflects financial strength and conservative risk profile, per CEO David Payne.","Authorization represents 11.8% of common shares outstanding as of March 31, 2026."],"urls":{"canonical":"https://secwatch.observer/filing/0001171843-26-002706","json":"https://secwatch.observer/filing/0001171843-26-002706.json","markdown":"https://secwatch.observer/filing/0001171843-26-002706.md","text":"https://secwatch.observer/filing/0001171843-26-002706.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/311094/000117184326002706/0001171843-26-002706-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/311094/000117184326002706/f8k_042426.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-15T04:17:38.713982+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":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}