{"schema_version":"secwatch.filing_event.v1","accession":"0001628280-26-028778","form_type":"8-K","ticker":"WAL","cik":"0001212545","company_name":"WESTERN ALLIANCE BANCORPORATION","filed_at":"2026-04-30T23:59:59+00:00","discovered_at":"2026-05-14T18:02:32.046175+00:00","generated_at":"2026-05-15T00:34:13.098607+00:00","sec_items":["8.01","9.01"],"event_type":"dividend","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Western Alliance Bancorp declares $0.42 quarterly common dividend; preferred also declared","bullets":["Common dividend $0.42/share; payable May 29, 2026 to holders of record May 14, 2026.","Preferred Series A dividend $0.265625/depositary share ($106.25/share); payable June 30, record June 15, 2026.","Dividends declared at Board meeting on April 30, 2026."],"urls":{"canonical":"https://secwatch.observer/filing/0001628280-26-028778","json":"https://secwatch.observer/filing/0001628280-26-028778.json","markdown":"https://secwatch.observer/filing/0001628280-26-028778.md","text":"https://secwatch.observer/filing/0001628280-26-028778.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1212545/000162828026028778/0001628280-26-028778-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1212545/000162828026028778/wal-20260430.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-15T00:34:13.098607+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"}