Jonathan H. Baksht was named Chief Financial Officer of Westlake Corp, effective June 15, 2026. As of November 6, 2026, Westlake Corp has reported 3 leadership change filings to the SEC under Item 5.02 of Form 8-K, from April 2, 2026 to August 31, 2026, naming 1 appointment (Form 8-K, April 20, 2026).
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Key facts
- · In / out: Reported · Person: not named in the filing · 8-K, 2026-08-31
- · In / out: In · Person: Jonathan H. Baksht · Role: Chief Financial Officer · Effective: 2026-06-15 · 8-K, 2026-04-20
- · In / out: Reported · Person: not named in the filing · 8-K, 2026-04-02
Westlake Corp reported changes in 3 filings among its directors and officers to the SEC on Form 8-K, Item 5.02, from 2026-04-02 to 2026-08-31. They name 1 person. Every row below is cited to the filing it comes from, and this page adds each new change as Westlake Corp files it.
Layoffs on record: about 120 jobs, latest 2026-09-29 (layoff filings and notices).
Timeline
| Filed | In / out | Person | Role | Effective | Source |
|---|---|---|---|---|---|
| 2026-08-31 | Reported | not named in the filing | 8-K, 2026-08-31 | ||
| 2026-04-20 | In | Chief Financial Officer | 2026-06-15 | 8-K, 2026-04-20 | |
| 2026-04-02 | Reported | not named in the filing | 8-K, 2026-04-02 |
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More on Westlake Corp and the records around it.
Westlake Corp elsewhere on the record
- Layoff notices Sep 2026
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Who leads Westlake Corp, as last reported?
For each role that changed in the filings below, the most recent change reported. A role that did not change in these filings is not listed.
- Chief Financial Officer: Jonathan H. Baksht, appointed, effective 2026-06-15 (filed 2026-04-20).
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Reported
On August 31, 2026, Westlake Corporation (the "Company") announced the appointment of Tommy E. Darby, age 45, to the position of Vice President, Chief Accounting Officer of the Company, effective immediately.
- In connection with his appointment as Vice President, Chief Accounting Officer of the Company, Mr. Darby was also appointed as Vice President, Chief Accounting Officer of Westlake Chemical Partners GP LLC, a wholly-owned subsidiary of the Company and the general partner of Westlake Chemical Partners LP, effective August 31, 2026.
- Prior to joining the Company, from August 2022 to April 2025, Mr. Darby served as Vice President and Chief Accounting Officer of Pactiv Evergreen Inc. (now Novolex) and, earlier in his tenure there, as Vice President and Controller.
- From March 2008 to May 2020, Mr. Darby held various leadership roles at Valaris plc (now Valaris Limited) and its predecessor companies in external reporting, financial systems and internal audit, before serving as Vice President and Controller and later as Vice President, Finance.
- Earlier in his career, Mr. Darby worked in audit and assurance at Deloitte LLP.
- Mr. Darby received a Bachelor of Science degree in Accounting and a Master of Science degree in Auditing and Financial Accounting from the University of North Texas and is a Certified Public Accountant.
Appointed: Jonathan H. Baksht, Chief Financial Officer, effective 2026-06-15
On April 15, 2026, the Compensation Committee of the Board of Directors (the "Compensation Committee") of Westlake Corporation (the "Company") appointed Jonathan H. Baksht, age 51, as Senior Vice President and Chief Financial Officer of the Company, effective June 15, 2026.
- Mr. Baksht will succeed Mr. M. Steven Bender, who, as previously disclosed, will retire by the end of the year and, effective June 15, 2026, will transition from his position as Executive Vice President and Chief Financial Officer of the Company to the position of Special Advisor to the President of the Company.
- In connection with his appointment as Senior Vice President and Chief Financial Officer of the Company, Mr. Baksht will also be appointed as Senior Vice President and Chief Financial Officer and as a director of Westlake Chemical Partners GP LLC, a wholly-owned subsidiary of the Company and the general partner of Westlake Chemical Partners LP, effective June 15, 2026.
- Prior to joining the Company, Mr. Baksht served as Executive Vice President and Chief Financial Officer of Fortune Brands Innovations, Inc. from May 2025 to March 2026.
- From May 2022 to May 2025, Mr. Baksht served as Chief Financial Officer of Pactiv Evergreen Inc. and from August 2013 to September 2021, Mr. Baksht held various positions at Valaris Limited, including most recently as Chief Financial Officer from November 2015 until September 2021.
- Earlier in his career, he worked in investment banking at Goldman, Sachs & Co. and in management consulting at Andersen Consulting.
Reported
On March 30, 2026, in connection with the upcoming retirement of Robert F. Buesinger, Executive Vice President, Performance & Essential Materials Segment Head of Westlake Corporation (the "Company"), the Board of Directors of the Company (the "Board") approved the transition of Mr. Buesinger to the role of Special Advisor to the President of the Company, effective as of April 2, 2026.
- In connection with the transition, the Board appointed Brian Powers as Senior Vice President, Performance & Essential Materials Segment Head of the Company, effective as of April 2, 2026.
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Where this comes from
A public company must file a current report on Form 8-K with the SEC within four business days when a director leaves or is elected, or when its chief executive, chief financial, chief accounting or chief operating officer, or another named executive, departs or is appointed. That disclosure goes under Item 5.02 of the report.
Every change on this page is taken from one of those filings and quoted in the company's own words, with a link to the filing, so it can be checked at the source. Where a filing names the person, the role and the date a change takes effect, they are shown beside the quote. Where it does not, the quote stands on its own. A filing states what changed; it rarely states why, and neither does this page.