{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-24-071912","form_type":"8-K","ticker":"KALU","cik":"0000811596","company_name":"KAISER ALUMINUM CORP","filed_at":"2024-06-11T23:59:59+00:00","discovered_at":"2026-05-14T18:03:22.042098+00:00","generated_at":"2026-06-01T05:11:55.736772+00:00","sec_items":["5.02","5.07","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"Kaiser Aluminum stockholder meeting approves amended equity plan; director Osborne retires","bullets":["Alfred E. Osborne, Jr. retired as director effective June 11, 2024; board reduced from 11 to 10.","Stockholders approved Amended 2021 Plan with 263,000 new shares (total 788,000 shares available).","Vote results: plan approval 97.1% for; executive compensation advisory 98.5% for.","Directors elected: Michael C. Arnold, David A. Foster, Richard P. Grimley (Class III, term to 2027)."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-24-071912","json":"https://secwatch.observer/filing/0000950170-24-071912.json","markdown":"https://secwatch.observer/filing/0000950170-24-071912.md","text":"https://secwatch.observer/filing/0000950170-24-071912.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/811596/000095017024071912/0000950170-24-071912-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/811596/000095017024071912/kalu-20240611.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-01T05:11:55.736772+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":"da16663c99","claim":"Alfred E. Osborne, Jr. retired as Director at KAISER ALUMINUM CORP.","evidence_excerpt":"Alfred E. Osborne, Jr. retired as a director of the Company effective June 11, 2024","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/811596/000095017024071912/0000950170-24-071912-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"retired"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}