{"schema_version":"secwatch.filing_event.v1","accession":"0001564590-22-022464","form_type":"8-K","ticker":"KALU","cik":"0000811596","company_name":"KAISER ALUMINUM CORP","filed_at":"2022-06-03T23:59:59+00:00","discovered_at":"2026-05-14T18:04:03.793113+00:00","generated_at":"2026-06-25T04:55:49.518046+00:00","sec_items":["5.02","5.07"],"event_type":"other","sentiment":"neutral","materiality_score":0.2,"calibrated_materiality_score":0.2,"confidence":"high","headline":"Kaiser Aluminum director Liggett resigns; annual meeting reelects four directors","bullets":["Emily Liggett resigned as director effective June 2, 2022; no disagreement cited.","Board reduced from 12 to 11 directors as of the resignation effective date.","Stockholders elected four Class I directors: Harvey, Osborne, Sebastian, Stebbins.","Advisory vote on executive compensation approved with 95.9% votes in favor.","Ratification of Deloitte as independent auditor passed with 91.3% approval."],"urls":{"canonical":"https://secwatch.observer/filing/0001564590-22-022464","json":"https://secwatch.observer/filing/0001564590-22-022464.json","markdown":"https://secwatch.observer/filing/0001564590-22-022464.md","text":"https://secwatch.observer/filing/0001564590-22-022464.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/811596/000156459022022464/0001564590-22-022464-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/811596/000156459022022464/kalu-8k_20220531.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-25T04:55:49.518046+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":"05709e71db","claim":"Emily Liggett resigned as director at KAISER ALUMINUM CORP.","evidence_excerpt":"On May 31, 2022, Emily Liggett notified the board of directors (the “Board”) of Kaiser Aluminum Corporation (the “Company”) of her decision to resign as a director of the Company, with her resignation to be effective as of June 2, 2022 (the “Effective Date”).","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/811596/000156459022022464/0001564590-22-022464-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"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"}