Westlake Corporation (WLK) SEC Filings

Westlake Corporation (WLK) SEC EDGAR filings (10-Q, 8-K, DEF 14A, 10-K), newest first; latest 10-Q filed 2026-08-05. Every filing links to the canonical SEC document. First-party data.

SEC filings — source: EDGAR
FiledFormTitle
2026-08-0510-Q10-Q filed 2026-08-05 by WESTLAKE CORP
2026-08-048-K8-K filed 2026-08-04 by WESTLAKE CORP
2026-07-298-K8-K filed 2026-07-29 by WESTLAKE CORP
2026-06-158-K8-K filed 2026-06-15 by WESTLAKE CORP
2026-05-188-K8-K filed 2026-05-18 by WESTLAKE CORP
2026-05-0610-Q10-Q filed 2026-05-06 by WESTLAKE CORP
2026-05-058-K8-K filed 2026-05-05 by WESTLAKE CORP
2026-05-018-K8-K filed 2026-05-01 by WESTLAKE CORP
2026-04-208-K8-K filed 2026-04-20 by WESTLAKE CORP
2026-04-148-K8-K filed 2026-04-14 by WESTLAKE CORP
2026-04-068-K8-K filed 2026-04-06 by WESTLAKE CORP
2026-04-02DEF 14ADEF 14A filed 2026-04-02 by WESTLAKE CORP
2026-04-028-K8-K filed 2026-04-02 by WESTLAKE CORP
2026-02-2610-K10-K filed 2026-02-26 by WESTLAKE CORP
2026-02-248-K8-K filed 2026-02-24 by WESTLAKE CORP
2026-02-238-K8-K filed 2026-02-23 by WESTLAKE CORP
2026-01-068-K8-K filed 2026-01-06 by WESTLAKE CORP
2025-12-158-K8-K filed 2025-12-15 by WESTLAKE CORP
2025-11-128-K8-K filed 2025-11-12 by WESTLAKE CORP
2025-11-058-K8-K filed 2025-11-05 by WESTLAKE CORP
2025-11-048-K8-K filed 2025-11-04 by WESTLAKE CORP
2025-10-3110-Q10-Q filed 2025-10-31 by WESTLAKE CORP
2025-10-308-K8-K filed 2025-10-30 by WESTLAKE CORP
2025-08-268-K8-K filed 2025-08-26 by WESTLAKE CORP
2025-08-0610-Q10-Q filed 2025-08-06 by WESTLAKE CORP
2025-08-058-K8-K filed 2025-08-05 by WESTLAKE CORP
2025-06-178-K8-K filed 2025-06-17 by WESTLAKE CORP
2025-05-128-K8-K filed 2025-05-12 by WESTLAKE CORP
2025-05-028-K8-K filed 2025-05-02 by WESTLAKE CORP
2025-05-0210-Q10-Q filed 2025-05-02 by WESTLAKE CORP

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Data sourced from U.S. SEC EDGAR. Not personalized investment advice.