{"filing":{"accession_number":"0001193125-26-312472","cik":"0000811596","ticker":"KALU","company_name":"KAISER ALUMINUM CORP","form":"8-K","filing_date":"2026-07-22","report_date":null,"primary_document":"kalu-20260722.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/811596/000119312526312472/kalu-20260722.htm"},"events":[{"id":19621,"run_id":17655,"accession_number":"0001193125-26-312472","anchor_item_number":"2.02","event_type":"earnings_release","event_domain":"financial","is_material":true,"confidence":0.98,"summary":"Kaiser Aluminum issued a press release on July 22, 2026 reporting preliminary, unaudited financial results for Q2 2026 ended June 30, 2026. The disclosure includes record net sales of $1.3 billion, net income of $97 million ($5.72 per diluted share), and adjusted EBITDA of $166 million with a 38.1% margin. The company also raised its full-year 2026 outlook for conversion revenue and adjusted EBITDA growth. This is a standard quarterly earnings release furnished as Exhibit 99.1 under Item 2.02.","company_name":"KAISER ALUMINUM CORP","ticker":"KALU","filing_date":"2026-07-22","form":"8-K","submitted_at":null,"items":[{"id":18763,"accession_number":"0001193125-26-312472","item_number":"2.02","item_title":"Results of Operations and Financial Condition.","event_type":"earnings_release","event_domain":"financial","is_material":true,"confidence":0.98,"reasoning":"Kaiser Aluminum issued a press release on July 22, 2026 reporting preliminary, unaudited financial results for Q2 2026 ended June 30, 2026. The disclosure includes record net sales of $1.3 billion, net income of $97 million ($5.72 per diluted share), and adjusted EBITDA of $166 million with a 38.1% margin. The company also raised its full-year 2026 outlook for conversion revenue and adjusted EBITDA growth. This is a standard quarterly earnings release furnished as Exhibit 99.1 under Item 2.02.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-07-22T20:41:41.794141+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":18763,"accession_number":"0001193125-26-312472","item_number":"2.02","item_title":"Results of Operations and Financial Condition.","event_type":"earnings_release","event_domain":"financial","is_material":true,"confidence":0.98,"reasoning":"Kaiser Aluminum issued a press release on July 22, 2026 reporting preliminary, unaudited financial results for Q2 2026 ended June 30, 2026. The disclosure includes record net sales of $1.3 billion, net income of $97 million ($5.72 per diluted share), and adjusted EBITDA of $166 million with a 38.1% margin. The company also raised its full-year 2026 outlook for conversion revenue and adjusted EBITDA growth. This is a standard quarterly earnings release furnished as Exhibit 99.1 under Item 2.02.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-07-22T20:41:41.794141+00:00","company_name":"KAISER ALUMINUM CORP","ticker":"KALU","filing_date":"2026-07-22"}]}