Westlake Corp Appoints New Chief Accounting Officer (Tommy E. Darby)

What Happened
Westlake Corporation announced the appointment of Tommy E. Darby, age 45, as Vice President, Chief Accounting Officer of the company, effective August 31, 2026. Mr. Darby will also serve as Vice President, Chief Accounting Officer of Westlake Chemical Partners GP LLC (a wholly‑owned subsidiary). He succeeds Jeffrey A. Holy, who will transition to Vice President, Finance and Investor Relations effective the same date.

Key Details

• Appointment effective: August 31, 2026.
• Base salary: $440,000 per year.
• Incentive targets: 45% of base salary under the Annual Incentive Plan (prorated), 8% of eligible quarterly salary under the Quarterly Incentive Plan, and a long‑term incentive target of 90% of base salary.
• Sign‑on RSU award: aggregate grant‑date fair value of $135,000; number of shares determined by average high/low stock price on August 31, 2026; RSUs vest in full on August 31, 2029, subject to continued employment.
• Background: Previously VP & Chief Accounting Officer at Pactiv Evergreen (Aug 2022–Apr 2025); earlier held leadership roles at Valaris (2008–2020) and worked in audit at Deloitte.
• Disclosures: No family relationships with company executives, no related‑party transactions requiring disclosure, and no special arrangements or understandings relating to his appointment.

Why It Matters
This is an executive change affecting Westlake’s financial reporting leadership. The CAO oversees accounting, internal controls and external reporting—areas important to investors monitoring the company’s financial accuracy and compliance. The compensation and multi‑year RSU vesting indicate retention and alignment incentives. The filing documents an orderly succession (Jeff Holy moving to Finance & Investor Relations), which helps show continuity in the company’s finance leadership.