8-K
WESTLAKE CORP (WLK)
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d)
of the Securities Exchange Act of 1934
Date of Report (date of earliest event reported): March 30, 2026
Westlake Corporation
(Exact name of registrant as specified in its charter)
| Delaware | 001-32260 | 76-0346924 |
|---|---|---|
| (State or other jurisdiction<br> <br>of incorporation) | (Commission<br> <br>File Number) | (I.R.S. Employer<br> <br>Identification No.) |
| 2801 Post Oak Boulevard, Suite 600 | ||
| --- | --- | |
| Houston, Texas | 77056 | |
| (Address of principal executive offices) | (Zip Code) |
Registrant’s telephone number, including area code: (713) 960-9111
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
| ☐ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) |
|---|---|
| ☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) |
| --- | --- |
| ☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) |
| --- | --- |
| ☐ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) |
| --- | --- |
Securities registered pursuant to Section 12(b) of the Act:
| Title of each class | Trading<br>Symbol(s) | Name of each exchange<br>on which registered |
|---|---|---|
| Common Stock | WLK | The New York Stock Exchange |
| 1.625% Senior Notes due 2029 | WLK 29 | The New York Stock Exchange |
Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
| Item 5.02. | Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. |
|---|
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.
SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
| WESTLAKE CORPORATION | ||
|---|---|---|
| Date: April 2, 2026 | By: | /s/ L. Benjamin Ederington |
| L. Benjamin Ederington | ||
| Executive Vice President, Legal and External Affairs |