WESTLAKE CORP — Director's Dealing 2019

May 20, 2019

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WESTLAKE CHEMICAL CORP (WLK)
CIK: 0001262823
Period of Report: 2019-05-18

Reporting Person: MCCOLLUM MARK A (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2019-05-18	Common Stock	M	987	—	Acquired	987	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2019-05-18	Restricted Stock Units	$	M	987	Disposed		Common Stock (987)	Direct

Footnotes

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

F2: On May 18, 2018 the reporting person was granted 987 restricted stock units vesting on the first anniversary of the grant date.