Westlake Corporation
Westlake Corporation (WLK) SEC Filings & 10-K Annual Reports
SEC EDGAR regulatory submissions (10-K, 10-Q, 8-K), latest forms, and full filing history — quick links to financials and earnings below.
SEC EDGAR · data.sec.gov · CIK 0001262823 · WLK · NYSE · as of Jun 8, 2026
Filing snapshot
Source: SEC EDGAR (data.sec.gov) · CIK 0001262823 · Updated hourly · Not investment advice
Latest Annual Report
Latest Key Filings
Executive & director trade disclosures. Full buy/sell sentiment analysis on the dedicated tab.
SEC Filing History
About SEC Filings & 10-K Annual Reports
Westlake Corporation (NYSE: WLK) has submitted 1,003+ documents to the U.S. Securities and Exchange Commission (SEC) since its IPO in 2004. As a Basic Materials sector company with CIK 0001262823, all filings are publicly accessible via the EDGAR database at no cost.
The annual 10-K report is Westlake Corporation's most comprehensive regulatory disclosure. The most recent Westlake Corporation 10-K was filed on 2026-02-26 for fiscal year ending 2026. Historical WLK 10-K annual reports are available from 2014 through 2026.
Investors researching Westlake Corporation SEC filings can access 10-K annual reports, quarterly 10-Q reports, material event 8-K filings, and proxy statements directly from the links above. All documents are sourced from the official SEC EDGAR system.
Frequently Asked Questions
WLK SEC Filings · 8 questionsWestlake Corporation (WLK) SEC filings are publicly available on this page and on the official SEC EDGAR database at sec.gov. You can browse all 1,003+ filings and access original documents at no cost. Westlake Corporation's CIK is 0001262823.