WESTLAKE CORP — Director's Dealing 2025

Oct 3, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WESTLAKE CORP (WLK)
CIK: 0001262823
Period of Report: 2025-10-01

Reporting Person: Szwejbka Scott Thomas (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-10-01	Common Stock	M	10840	—	Acquired	16659	Direct
2025-10-02	Common Stock	F	3842	$76.70	Disposed	12817	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-10-01	Restricted Stock Units	$	M	10840	Disposed		Common Stock (10840)	Direct

Footnotes

F1: Restricted stock units ("RSUs") convert into the Issuer's common stock on a one-for-one basis.

F2: On October 1, 2021, the reporting person was granted 10,840 RSUs vesting on the fourth anniversay of the grant date.

F3: Shares otherwise issuable were withheld to satisfy tax obligations arising out of the vesting of the reporting persons RSUs.