{"schema_version":"secwatch.filing_event.v1","accession":"0001628280-26-033851","form_type":"8-K","ticker":"WAL","cik":"0001212545","company_name":"WESTERN ALLIANCE BANCORPORATION","filed_at":"2026-05-12T10:46:22+00:00","discovered_at":"2026-05-12T10:50:00.272604+00:00","generated_at":"2026-05-12T10:50:14.889326+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"Stephen Curley, Chief Banking Officer for National Business Lines, resigns","bullets":["Resignation notice given on May 8, 2026; effective same date.","Curley leaves to become CEO of another financial services firm.","No replacement named in the filing."],"urls":{"canonical":"https://secwatch.observer/filing/0001628280-26-033851","json":"https://secwatch.observer/filing/0001628280-26-033851.json","markdown":"https://secwatch.observer/filing/0001628280-26-033851.md","text":"https://secwatch.observer/filing/0001628280-26-033851.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1212545/000162828026033851/0001628280-26-033851-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1212545/000162828026033851/wal-20260508.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-12T10:50:14.889326+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":"5ffbe317ba","claim":"Stephen Curley resigned as Chief Banking Officer for National Business Lines at WESTERN ALLIANCE BANCORPORATION.","evidence_excerpt":"On May 8, 2026, Stephen Curley, Chief Banking Officer for National Business Lines of Western Alliance Bancorporation, provided notice of his resignation in order to pursue another employment opportunity as Chief Executive Officer within the financial services industry.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1212545/000162828026033851/0001628280-26-033851-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Chief Banking Officer for National Business Lines"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}