Westlake Chemical Corp
Headquarters Houston, TX
Financials
Prospectuses and Registrations
FORMNAMEDATE FILED
S-8Securities to be offered to employees in employee benefit plans5/11/2023S-3ASRAutomatic shelf registration statement of securities of well-known seasoned issuers11/3/2022424B5Prospectus8/6/2021FWPFiling under Securities Act Rules 163/433 of free writing prospectuses8/5/2021424B5Prospectus8/5/2021424B5Prospectus6/10/2020FWPFiling under Securities Act Rules 163/433 of free writing prospectuses6/9/2020
Proxies
FORMNAMEDATE FILED
DEFA14AAdditional definitive proxy soliciting materials and Rule 14(a)(12) material3/28/2025DEF 14AOther definitive proxy statements3/28/2025PX14A6GNotice of exempt solicitation submitted by non-management4/11/2024DEFA14AAdditional definitive proxy soliciting materials and Rule 14(a)(12) material3/29/2024DEF 14AOther definitive proxy statements3/29/2024PX14A6GNotice of exempt solicitation submitted by non-management4/20/2023DEFA14AAdditional definitive proxy soliciting materials and Rule 14(a)(12) material3/31/2023
News
FORMNAMEDATE FILED
8-KCost Associated with Exit or Disposal Activities6/17/20258-KSubmission of Matters to a Vote of Security Holders5/12/20258-KResults of Operations and Financial Condition5/2/20258-KDeparture of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers4/16/20258-KDeparture of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers3/4/20258-KResults of Operations and Financial Condition2/24/20258-KFinancial Statements and Exhibits12/11/2024
Ownership