Year archive

WESTLAKE CORP — 2026 filings

All 35 regulatory filings released by WESTLAKE CORP (WLK) in 2026, sourced directly from the official regulator.

35 Filings

2026 Period

2026 filings (35)

Filing	Released	Lang
SD Regulatory Filings	2026-05-18	English
8-K Regulatory Filings	2026-05-18	English
10-Q - WESTLAKE CORP (0001262823) (Filer) Interim / Quarterly Report	2026-05-06	English
8-K - WESTLAKE CORP (0001262823) (Filer) Regulatory Filings	2026-05-05	English
8-K - WESTLAKE CORP (0001262823) (Filer) Regulatory Filings	2026-04-20	English
8-K - WESTLAKE CORP (0001262823) (Filer) Regulatory Filings	2026-04-14	English
8-K - WESTLAKE CORP (0001262823) (Filer) Regulatory Filings	2026-04-06	English
8-K - WESTLAKE CORP (0001262823) (Filer) Regulatory Filings	2026-04-02	English
ARS - WESTLAKE CORP (0001262823) (Filer) Annual Report	2026-04-02	English
DEF 14A - WESTLAKE CORP (0001262823) (Filer) Proxy Solicitation & Information Statement	2026-04-02	English
4 - WESTLAKE CORP (0001262823) (Issuer) Director's Dealing	2026-03-30	English
144 - WESTLAKE CORP (0001262823) (Subject) Regulatory Filings	2026-03-27	English
4 - WESTLAKE CORP (0001262823) (Filer) Director's Dealing	2026-03-02	English
10-K - WESTLAKE CORP (0001262823) (Filer) Annual Report FY 2025	2026-02-26	English
8-K - WESTLAKE CORP (0001262823) (Filer) Regulatory Filings	2026-02-24	English
4 - WESTLAKE CORP (0001262823) (Filer) Director's Dealing	2026-02-24	English
8-K - WESTLAKE CORP (0001262823) (Filer) Regulatory Filings	2026-02-23	English
4 - WESTLAKE CORP (0001262823) (Filer) Director's Dealing	2026-02-23	English
4 - WESTLAKE CORP (0001262823) (Filer) Director's Dealing	2026-02-23	English
4 - WESTLAKE CORP (0001262823) (Filer) Director's Dealing	2026-02-23	English
4 - WESTLAKE CORP (0001262823) (Filer) Director's Dealing	2026-02-23	English
4 - WESTLAKE CORP (0001262823) (Filer) Director's Dealing	2026-02-23	English
4 - WESTLAKE CORP (0001262823) (Filer) Director's Dealing	2026-02-23	English
4 - WESTLAKE CORP (0001262823) (Filer) Director's Dealing	2026-02-23	English
4 - WESTLAKE CORP (0001262823) (Filer) Director's Dealing	2026-02-23	English
4 - WESTLAKE CORP (0001262823) (Filer) Director's Dealing	2026-02-23	English
4 - WESTLAKE CORP (0001262823) (Filer) Director's Dealing	2026-02-19	English
4 - WESTLAKE CORP (0001262823) (Filer) Director's Dealing	2026-02-19	English
4 - WESTLAKE CORP (0001262823) (Filer) Director's Dealing	2026-02-19	English
4 - WESTLAKE CORP (0001262823) (Filer) Director's Dealing	2026-02-19	English
4 - WESTLAKE CORP (0001262823) (Filer) Director's Dealing	2026-02-19	English
4 - WESTLAKE CORP (0001262823) (Filer) Director's Dealing	2026-02-19	English
4 - WESTLAKE CORP (0001262823) (Filer) Director's Dealing	2026-02-19	English
4 - WESTLAKE CORP (0001262823) (Filer) Director's Dealing	2026-02-19	English
8-K Filing Regulatory Filings	2026-01-06	English

Filings by year

2026 35 filings
2025 65 filings
2024 91 filings
2023 101 filings
2022 82 filings
2021 84 filings
2020 76 filings
2019 70 filings
2018 90 filings
2017 95 filings
2016 114 filings
2015 62 filings
2014 64 filings
2013 79 filings
2012 93 filings
2011 55 filings
2010 56 filings