{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-23-001237","form_type":"8-K","ticker":"KALU","cik":"0000811596","company_name":"KAISER ALUMINUM CORP","filed_at":"2023-01-26T23:59:59+00:00","discovered_at":"2026-05-14T18:03:48.152192+00:00","generated_at":"2026-06-20T08:50:35.677365+00:00","sec_items":["2.02","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"low","headline":"Kaiser Aluminum to change non-GAAP presentation; limited details in filing excerpt","bullets":["Non-GAAP financial measure presentation changes effective Q4 2022; comparative prior-period data included.","Press release also announces date of Q4/full-year 2022 earnings release (date not in provided excerpt).","No specific financial metrics or guidance were disclosed in this 8-K or truncated exhibit."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-23-001237","json":"https://secwatch.observer/filing/0000950170-23-001237.json","markdown":"https://secwatch.observer/filing/0000950170-23-001237.md","text":"https://secwatch.observer/filing/0000950170-23-001237.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/811596/000095017023001237/0000950170-23-001237-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/811596/000095017023001237/kalu-20230126.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-20T08:50:35.677365+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"}