WESTLAKE CORP — Director's Dealing 2026

Feb 23, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WESTLAKE CORP (WLK)
CIK: 0001262823
Period of Report: 2026-02-20

Reporting Person: Gilson Jean-Marc (N/A)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-02-20	Employee Option (right to buy)	$94.48	A	109139	Acquired	2036-02-20	Common Stock (109139)	Direct
2026-02-20	Restricted Stock Units	$	A	29784	Acquired		Common Stock (29784)	Direct

Footnotes

F1: The stock options are excercisable in three installments of 33%, 33% and 34% on February 20, 2027, 2028 and 2029, respectively.

F2: Each restricted stock unit ("RSU") represents a contingent right to recieve one share of the Issuer's common stock.

F3: All of the RSUs will vest on February 20, 2029.