Director Carolyn Chao Sabat of Westlake Corp filed a statement of changes in beneficial ownership on August 10, 2026, disclosing the vesting of restricted stock units and the resulting acquisition of common stock on August 8, 2026.

Key Highlights

  • Reporting person: Carolyn Chao Sabat, identified as a Director of Westlake Corp (NYSE: WLK)
  • Transaction date: August 8, 2026, with the filing submitted on August 10, 2026
  • Shares acquired: 2,168 shares of common stock acquired via transaction code M (conversion of restricted stock units)
  • Beneficial ownership following transaction: 5,748 shares of common stock held directly
  • RSU grant origin: The 2,168 restricted stock units were originally granted on August 8, 2025, and vested on the first anniversary of the grant date
  • Conversion terms: Restricted stock units convert into common stock on a one-for-one basis, at a derivative security price of $0

Westlake Corp Director Carolyn Chao Sabat Discloses RSU Conversion Details

According to the filing, Carolyn Chao Sabat, a Director at Westlake Corp, reported the conversion of 2,168 restricted stock units into an equal number of shares of Westlake Corp common stock on August 8, 2026. The filing notes that the restricted stock units were originally granted on August 8, 2025, with a vesting condition tied to the first anniversary of the grant date. The conversion was recorded under transaction code M, indicating the exercise or conversion of a derivative security.

The filing discloses that following this transaction, Sabat directly beneficially owned 5,748 shares of Westlake Corp common stock. The derivative security price is listed as $0, consistent with the filing's explanation that restricted stock units convert into the issuer's common stock on a one-for-one basis. Westlake Corp, listed on the New York Stock Exchange under the ticker WLK, is the issuer named in the filing. The form was signed by J Feng under a power of attorney on behalf of Carolyn Sabat and submitted on August 10, 2026.

The filing also shows that following the conversion, the remaining balance of restricted stock units beneficially owned by the reporting person is listed as 2,168, held directly, reflecting the position in Table II of the form as reported.

What Was Disclosed

The filing reported the August 8, 2026 conversion of 2,168 restricted stock units into common stock by Westlake Corp Director Carolyn Chao Sabat, resulting in direct beneficial ownership of 5,748 shares of common stock following the transaction.