{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-284711","form_type":"8-K","ticker":"KALU","cik":"0000811596","company_name":"KAISER ALUMINUM CORP","filed_at":"2025-11-17T23:59:59+00:00","discovered_at":"2026-05-14T18:02:42.237321+00:00","generated_at":"2026-05-16T19:32:37.192839+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"negative","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"Kaiser Aluminum EVP Manufacturing takes health leave; Thomas Robb appointed SVP","bullets":["Jason D. Walsh, EVP – Manufacturing, takes leave for health reasons effective November 17, 2025.","Thomas H. Robb appointed SVP – Manufacturing, assuming Walsh's responsibilities immediately.","Robb joined Kaiser in August 2024 as VP – Finance, later VP – Finance and Packaging overseeing Warrick mill coating line startup.","Robb has over 20 years of international aluminum and metals experience and an MBA from Vanderbilt University."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-284711","json":"https://secwatch.observer/filing/0001193125-25-284711.json","markdown":"https://secwatch.observer/filing/0001193125-25-284711.md","text":"https://secwatch.observer/filing/0001193125-25-284711.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/811596/000119312525284711/0001193125-25-284711-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/811596/000119312525284711/kalu-20251114.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T19:32:37.192839+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"}