https://www.developersdigest.tech/markets/wlk/filings Latest company filings for WESTLAKE CORP (WLK) - annual reports, quarterly reports, major events, and insider trades, newest first. en Fri, 10 Jul 2026 02:16:36 GMT https://www.sec.gov/Archives/edgar/data/1262823/000119312526229097/d149885dsd.htm 0001193125-26-229097 Mon, 18 May 2026 12:00:00 GMT SD https://www.sec.gov/Archives/edgar/data/1262823/000119312526229093/d918757d8k.htm 0001193125-26-229093 Mon, 18 May 2026 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/1262823/000119312526223323/xslF345X06/ownership.xml 0001193125-26-223323 Thu, 14 May 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/1262823/000126282326000022/wlk-20260331.htm 0001262823-26-000022 Wed, 06 May 2026 12:00:00 GMT 10-Q https://www.sec.gov/Archives/edgar/data/1262823/000126282326000019/wlk-20260505.htm 0001262823-26-000019 Tue, 05 May 2026 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/1262823/000119312526199067/d145614d8k.htm 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12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/1262823/000119312526059212/xslF345X05/ownership.xml 0001193125-26-059212 Thu, 19 Feb 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/1262823/000119312526059211/xslF345X05/ownership.xml 0001193125-26-059211 Thu, 19 Feb 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/1262823/000119312526059210/xslF345X05/ownership.xml 0001193125-26-059210 Thu, 19 Feb 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/1262823/000119312526059207/xslF345X05/ownership.xml 0001193125-26-059207 Thu, 19 Feb 2026 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/1262823/000126282326000005/wlk-20260106.htm 0001262823-26-000005 Tue, 06 Jan 2026 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/1262823/000119312525329926/xslF345X05/ownership.xml 0001193125-25-329926 Tue, 23 Dec 2025 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/1262823/000195004725010631/xsl144X01/primary_doc.xml 0001950047-25-010631 Mon, 22 Dec 2025 12:00:00 GMT 144 https://www.sec.gov/Archives/edgar/data/1262823/000119312525318445/d798286d8k.htm 0001193125-25-318445 Mon, 15 Dec 2025 12:00:00 GMT 8-K https://www.sec.gov/Archives/edgar/data/1262823/000119312525314045/xslF345X05/ownership.xml 0001193125-25-314045 Wed, 10 Dec 2025 12:00:00 GMT 4 https://www.sec.gov/Archives/edgar/data/1262823/000119312525275790/d83188d8k.htm 0001193125-25-275790 Wed, 12 Nov 2025 12:00:00 GMT 8-K