{"schema_version":"secwatch.filing_event.v1","accession":"0001212545-24-000317","form_type":"8-K","ticker":"WAL","cik":"0001212545","company_name":"WESTERN ALLIANCE BANCORPORATION","filed_at":"2024-12-11T23:59:59+00:00","discovered_at":"2026-05-14T18:03:07.880672+00:00","generated_at":"2026-05-29T04:37:23.523967+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"CEO Kenneth Vecchione to take medical leave; CFO Dale Gibbons named interim CEO effective Dec 16","bullets":["CEO Vecchione will undergo bypass surgery; leave begins Dec 16, expected return late Q1 2025.","Dale Gibbons, Vice Chair and CFO, appointed interim CEO in addition to his existing CFO duties.","Executive Committee includes Gibbons, Chief Banking Officers Tim Bruckner and Steve Curley.","Chairman Bruce Beach says emergency succession plan has prepared the company for this situation."],"urls":{"canonical":"https://secwatch.observer/filing/0001212545-24-000317","json":"https://secwatch.observer/filing/0001212545-24-000317.json","markdown":"https://secwatch.observer/filing/0001212545-24-000317.md","text":"https://secwatch.observer/filing/0001212545-24-000317.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1212545/000121254524000317/0001212545-24-000317-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1212545/000121254524000317/wal-20241210.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-29T04:37:23.523967+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"}