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Westlake Corporation – Filings and Transcripts

NYSE: WLK
Share price (6/26/26): $76.62
Market cap (6/26/26): $9.817 billion

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Key Exhibits

External Links

Financials Filter

ended 03/31/26 Q1

ended 12/31/25 FY 2025

ended 09/30/25 Q3

ended 06/30/25 Q2

ended 03/31/25 Q1

Prospectuses and Registrations Filter

Prospectus supplement for primary offering

Free writing prospectus

Prospectus supplement for primary offering

Automatic shelf registration

Registration of securities for employees

Ownership Filter

Baksht Jonathan

Baksht Jonathan

Bender Mark Steven

Powers Brian John

Powers Brian John

News Filter

Expands Global Chlorovinyls Manufacturing Capacity With Acquisition of Pvc and Vcm Plants in Wilhelmshaven, Germany

Shareholder Vote Results

Reports First Quarter 2026 Results

Material Disclosure

Appoints Jonathan H. Baksht as Senior Vice President and Chief Financial Officer

Proxies Filter

Additional info about upcoming vote

Definitive proxy

Additional info about upcoming vote

Definitive proxy

Letter to shareholders

Other Filter

Conflict Minerals disclosure

Scanned paper annual report submission

Conflict Minerals disclosure

Scanned paper annual report submission

Letter from the SEC