WESTLAKE CORP — Director's Dealing 2021

May 17, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WESTLAKE CHEMICAL CORP (WLK)
CIK: 0001262823
Period of Report: 2021-05-15

Reporting Person: Lubel Kimberly S (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-05-15	Common Stock	M	3780	—	Acquired	3780	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-05-15	Restricted Stock Units	$	M	3780	Disposed		Common Stock (3780)	Direct

Footnotes

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

F2: On May 15, 2020 the reporting person was granted 3,780 restricted stock units vesting on the first anniversary of the grant date.