{"filing":{"accession_number":"0001193125-26-376996","cik":"0001262823","ticker":"WLK","company_name":"WESTLAKE CORP","form":"8-K","filing_date":"2026-08-31","report_date":"2026-08-31","primary_document":"d437911d8k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1262823/000119312526376996/d437911d8k.htm"},"events":[{"id":30676,"run_id":28123,"accession_number":"0001193125-26-376996","anchor_item_number":"5.02","event_type":"exec_appointment","event_domain":"governance","is_material":true,"confidence":0.95,"summary":"The disclosure centers on the appointment of Tommy E. Darby as Vice President, Chief Accounting Officer of Westlake Corporation, effective immediately on August 31, 2026. While the filing also includes compensatory details (salary of $440,000, bonus targets, and a $135,000 sign-on RSU award), the principal action is the appointment of a named executive officer to a key financial leadership role. The transition of Jeffrey A. Holy to a different position is secondary to Darby's appointment. This is material as it involves a change in the chief accounting officer position, a critical role for financial reporting and internal controls.","company_name":"WESTLAKE CORP","ticker":"WLK","filing_date":"2026-08-31","form":"8-K","submitted_at":null,"items":[{"id":33344,"accession_number":"0001193125-26-376996","item_number":"5.02","item_title":null,"event_type":"exec_appointment","event_domain":"governance","is_material":true,"confidence":0.95,"reasoning":"The disclosure centers on the appointment of Tommy E. Darby as Vice President, Chief Accounting Officer of Westlake Corporation, effective immediately on August 31, 2026. While the filing also includes compensatory details (salary of $440,000, bonus targets, and a $135,000 sign-on RSU award), the principal action is the appointment of a named executive officer to a key financial leadership role. The transition of Jeffrey A. Holy to a different position is secondary to Darby's appointment. This is material as it involves a change in the chief accounting officer position, a critical role for financial reporting and internal controls.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-31T21:01:58.731437+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":33344,"accession_number":"0001193125-26-376996","item_number":"5.02","item_title":null,"event_type":"exec_appointment","event_domain":"governance","is_material":true,"confidence":0.95,"reasoning":"The disclosure centers on the appointment of Tommy E. Darby as Vice President, Chief Accounting Officer of Westlake Corporation, effective immediately on August 31, 2026. While the filing also includes compensatory details (salary of $440,000, bonus targets, and a $135,000 sign-on RSU award), the principal action is the appointment of a named executive officer to a key financial leadership role. The transition of Jeffrey A. Holy to a different position is secondary to Darby's appointment. This is material as it involves a change in the chief accounting officer position, a critical role for financial reporting and internal controls.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-31T21:01:58.731437+00:00","company_name":"WESTLAKE CORP","ticker":"WLK","filing_date":"2026-08-31"}]}