WESTLAKE CORP — Director's Dealing 2018

Mar 12, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WESTLAKE CHEMICAL CORP (WLK)
CIK: 0001262823
Period of Report: 2018-03-09

Reporting Person: Kenner Andrew (SVP - Chemical Manufacturing)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-03-09	Common Stock	M	3412	$61.865	Acquired	17465	Direct
2018-03-09	Common Stock	S	6028	$120.	Disposed	11437	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2018-03-09	Employee Option (right to buy)	$61.865	M	3412	Disposed	2027-02-17	Common Stock (3412)	Direct

Footnotes

F1: The stock options are excercisable in three installments of 33%, 33% and 34% on February 17, 2018, 2019 and 2020.