{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-250703","form_type":"8-K","ticker":"KALU","cik":"0000811596","company_name":"KAISER ALUMINUM CORP","filed_at":"2025-10-27T23:59:59+00:00","discovered_at":"2026-05-14T18:02:42.236414+00:00","generated_at":"2026-05-17T02:16:48.761295+00:00","sec_items":["8.01","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Kaiser Aluminum plans $500M senior notes offering; to redeem 4.625% notes due 2028","bullets":["Offering $500M aggregate principal amount of senior notes due 2034 via private placement exempt from SEC registration.","Net proceeds, together with revolver borrowings or cash, will redeem all outstanding 4.625% senior notes due 2028.","Conditional redemption notice issued for November 6, 2025, subject to successful note issuance on satisfactory terms.","New notes will be guaranteed by existing and future domestic subsidiaries that are borrowers or guarantors under the revolving credit facility."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-250703","json":"https://secwatch.observer/filing/0001193125-25-250703.json","markdown":"https://secwatch.observer/filing/0001193125-25-250703.md","text":"https://secwatch.observer/filing/0001193125-25-250703.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/811596/000119312525250703/0001193125-25-250703-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/811596/000119312525250703/d33626d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T02:16:48.761295+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"}