{"schema_version":"secwatch.filing_event.v1","accession":"0001628280-25-056529","form_type":"8-K","ticker":"WAL","cik":"0001212545","company_name":"WESTERN ALLIANCE BANCORPORATION","filed_at":"2025-12-11T23:59:59+00:00","discovered_at":"2026-05-14T18:02:38.955270+00:00","generated_at":"2026-05-16T13:28:08.017670+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"positive","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Western Alliance appoints two new directors with risk and cybersecurity expertise","bullets":["Dr. Michael Papay (former Amex tech risk head) and Clarke Starnes III (ex-Truist CRO) join board effective Dec 10, 2025.","Board expanded to 15; Papay appointed to Audit and Risk Committees, Starnes to Finance/Investment and Risk Committees.","Appointments come as WAL nears $100B asset threshold, preparing to become a Large Financial Institution.","Both will serve until the 2026 annual meeting and receive standard non-employee director compensation."],"urls":{"canonical":"https://secwatch.observer/filing/0001628280-25-056529","json":"https://secwatch.observer/filing/0001628280-25-056529.json","markdown":"https://secwatch.observer/filing/0001628280-25-056529.md","text":"https://secwatch.observer/filing/0001628280-25-056529.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1212545/000162828025056529/0001628280-25-056529-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1212545/000162828025056529/wal-20251210.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T13:28:08.017670+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"}