{"url_path":"/sec/wlk/8-k/2026-06-15/cover-page","section_key":"cover-page","section_title":"Cover Page","topic":"sec","document":{"doc_type":"8-K","doc_date":"2026-06-15","source_url":"https://www.sec.gov/Archives/edgar/data/1262823/0001193125-26-271206-index.html","accession_number":"0001193125-26-271206","cik":"0001262823","ticker":"WLK","issuer_name":"WESTLAKE CORP","edgar_url":"https://www.sec.gov/Archives/edgar/data/1262823/0001193125-26-271206-index.html","primary_entity_key":"0001262823","primary_entity_name":"WESTLAKE CORP"},"word_count":320,"has_tables":true,"body_markdown":"8-K\n\nWESTLAKE CORP false 0001262823 0001262823 2026-06-15 2026-06-15 0001262823 us-gaap:CommonStockMember 2026-06-15 2026-06-15 0001262823 us-gaap:SeniorNotesMember 2026-06-15 2026-06-15\n\n \n\n \n\nUNITED STATES\n\nSECURITIES AND EXCHANGE COMMISSION\n\nWashington, D.C. 20549\n\n \n\n \n\nFORM 8-K\n\n \n\n \n\nCURRENT REPORT\n\nPursuant to Section 13 or 15(d)\n\nof the Securities Exchange Act of 1934\n\nDate of Report (date of earliest event reported): June 15, 2026\n\n \n\n \n\nWestlake Corporation\n\n(Exact name of registrant as specified in its charter)\n\n \n\n \n\n \n\nDelaware\n \n001-32260\n \n76-0346924\n\n(State or other jurisdiction\n\nof incorporation)\n\n \n\n(Commission\n\nFile Number)\n\n \n\n(I.R.S. Employer\n\nIdentification No.)\n\n \n\n2801 Post Oak Boulevard, Suite 600\n \n\nHouston, Texas\n \n77056\n\n(Address of principal executive offices)\n \n(Zip Code)\n\nRegistrant’s telephone number, including area code: (713) 960-9111\n\n \n\n \n\nCheck the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:\n\n \n\n☐\n\nWritten communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)\n\n \n\n☐\n\nSoliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)\n\n \n\n☐\n\nPre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))\n\n \n\n☐\n\nPre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))\n\nSecurities registered pursuant to Section 12(b) of the Act:\n\n \n\nTitle of each class\n\n \n\nTrading\n\nSymbol(s)\n\n \n\nName of each exchange\n\non which registered\n\nCommon Stock, $0.01 par value\n \nWLK\n \nThe New York Stock Exchange\n\n1.625% Senior Notes due 2029\n \nWLK29\n \nThe New York Stock Exchange\n\nIndicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).\n\nEmerging growth company ☐\n\nIf an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐"}