{"filing":{"accession_number":"0001193125-26-324110","cik":"0001262823","ticker":"WLK","company_name":"WESTLAKE CORP","form":"8-K","filing_date":"2026-07-29","report_date":"2026-07-29","primary_document":"d151580d8k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1262823/000119312526324110/d151580d8k.htm"},"events":[{"id":21743,"run_id":19614,"accession_number":"0001193125-26-324110","anchor_item_number":"8.01","event_type":"material_litigation","event_domain":"legal","is_material":true,"confidence":0.92,"summary":"The filing discloses a material litigation development: dismissal of two major antitrust lawsuits against Westlake in the Netherlands and Germany, including one by Shell Chemical Europe alleging approximately €1,025 million in damages. Although the dismissals are favorable to the Company, they remain subject to appeal and twelve related lawsuits are still pending, making this a significant material litigation event affecting investor assessment of the Company's legal exposure and contingent liabilities.","company_name":"WESTLAKE CORP","ticker":"WLK","filing_date":"2026-07-29","form":"8-K","submitted_at":null,"items":[{"id":21450,"accession_number":"0001193125-26-324110","item_number":"8.01","item_title":null,"event_type":"material_litigation","event_domain":"legal","is_material":true,"confidence":0.92,"reasoning":"The filing discloses a material litigation development: dismissal of two major antitrust lawsuits against Westlake in the Netherlands and Germany, including one by Shell Chemical Europe alleging approximately €1,025 million in damages. Although the dismissals are favorable to the Company, they remain subject to appeal and twelve related lawsuits are still pending, making this a significant material litigation event affecting investor assessment of the Company's legal exposure and contingent liabilities.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-07-30T00:11:05.907351+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":21450,"accession_number":"0001193125-26-324110","item_number":"8.01","item_title":null,"event_type":"material_litigation","event_domain":"legal","is_material":true,"confidence":0.92,"reasoning":"The filing discloses a material litigation development: dismissal of two major antitrust lawsuits against Westlake in the Netherlands and Germany, including one by Shell Chemical Europe alleging approximately €1,025 million in damages. Although the dismissals are favorable to the Company, they remain subject to appeal and twelve related lawsuits are still pending, making this a significant material litigation event affecting investor assessment of the Company's legal exposure and contingent liabilities.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-07-30T00:11:05.907351+00:00","company_name":"WESTLAKE CORP","ticker":"WLK","filing_date":"2026-07-29"}]}