Open report — full analysis, no account required.

Sign up to generate reports and read filings that aren't on the open list.

Sign up free

Get notified when WLK files again. Create a free account and we'll email you the moment its next filing is analyzed.

Get filing alerts
NYSE: WLK WESTLAKE CORP 8-K

Westlake wins dismissal of two ethylene antitrust suits totaling €1B+ in claims

Filed July 29, 2026 · Period ending July 29, 2026 · ~1 min read

3 key changes 2 high relevance 1 section

Key Changes

  • high

    Amsterdam court dismissed Shell Chemical Europe's lawsuit claiming an undisclosed amount €1,025 million in damages plus interest; dismissal subject to appeal.

  • high

    Court also dismissed Stichting Ethylene Claims' lawsuit seeking declaratory judgment of liability for unspecified damages; both dismissals appealable.

  • medium

    Twelve ethylene antitrust lawsuits remain pending at trial court level in the Netherlands and Germany.

Summary

Westlake secured dismissals of two ethylene antitrust lawsuits in Amsterdam District Court on July 29, 2026. The larger case, filed by Shell Chemical Europe in March 2023, had sought an undisclosed amount €1,025 million in damages plus statutory interest. The second case, filed by Stichting Ethylene Claims in November 2023, sought a declaratory judgment establishing liability for unspecified damages.

Both plaintiffs may appeal the dismissals. The favorable rulings reduce Westlake's immediate litigation exposure but do not resolve the broader antitrust matter. Twelve related lawsuits remain pending at first instance courts in the Netherlands and Germany.

The dismissals suggest the plaintiffs' claims may face evidentiary or procedural hurdles, but the outcome of the remaining cases and any appeals will determine Westlake's ultimate liability. Investors should monitor whether the dismissed plaintiffs appeal and how the trial courts handling the twelve pending cases respond to similar claims.

Section-by-Section Diff

Event · Item 8.01 — Other Events

~400 words

Item 8.01 — Other Events filed; see Key Changes for terms.

1 Added
Added Remaining litigation medium

Added in current filing · verify on EDGAR →

Twelve lawsuits in the Ethylene Antitrust Litigation are still pending at first instance courts.

While two of the fourteen ethylene antitrust lawsuits in the Netherlands and Germany have been dismissed, twelve cases remain pending at trial court level. The litigation exposure continues despite these favorable rulings.

Was this report useful?

Figures/quotes linked to EDGAR · Narrative written by AI · Jul 30, 2026 · How we verify