WESTLAKE CORP 8-K

What Happened Westlake Corporation (WLK) announced it entered into a settlement agreement on March 26, 2026 to resolve claims by direct purchaser plaintiffs (DPPs) in the PVC Pipe Antitrust Litigation. The company agreed to pay $67 million to the DPP settlement class, and the DPPs filed a motion for preliminary court approval of the settlement on April 13, 2026. The settlement covers certain DPP claims and is expressly not an admission of liability or wrongdoing by Westlake. Separate claims by indirect purchaser plaintiffs remain pending.

Key Details

• Ten putative class action lawsuits were filed in Illinois between August 2024 and June 2025 alleging price-fixing involving PVC pipe and fittings and an industry publication (OPIS).
• Settlement agreement executed March 26, 2026; DPPs moved for preliminary approval on April 13, 2026.
• Westlake has agreed to pay $67,000,000 to the DPP settlement class, subject to court approval and other conditions.
• The settlement does not resolve indirect purchaser claims, which remain active.

Why It Matters This settlement, if approved, would resolve Westlake’s exposure to the named direct-purchaser class actions for a defined cash payment ($67M), potentially reducing ongoing legal uncertainty and future defense costs related to those claims. However, because approval is required and indirect purchaser lawsuits remain pending, further litigation risk and potential costs may persist. Investors should note the company’s caution that statements about the settlement’s terms and approval are forward-looking and subject to risks described in Westlake’s Form 10-K (filed Feb 26, 2026).