SEC Form 4 · accession 0001193125-26-377500
WESTLAKE CORP · WLK
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Tommy Darby
Officer — VP and CAO
Period of report
Aug 31, 2026
Accepted (ET)
Sep 1, 2026 · 7:14 am EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001262823
Table I — non-derivative securities
No Table I lines on this filing.
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Restricted Stock UnitsF1,F2 | — | Aug 31, 2026 | A | 1,791 | A | — | — | Common Stock | 1,791 | 1,791 | D |
Explanation of responses
- F1Each restricted stock unit ("RSU") represents a contingent right to recieve one share of the Issuer's common stock.
- F2All of the RSUs will vest on August 31, 2029.