WESTLAKE CORP — Director's Dealing 2016

Nov 14, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WESTLAKE CHEMICAL CORP (WLK)
CIK: 0001262823
Period of Report: 2016-11-10

Reporting Person: Buesinger Robert F. (Sr. Vice President, Vinyls)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-11-10	Common Stock	M	2880	$30.0525	Acquired	11035	Direct
2016-11-10	Common Stock	S	2880	$54.4226	Disposed	8155	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-11-10	Employee Option (right to buy)	$30.0525	M	2880	Disposed	2022-02-17	Common Stock (2880)	Direct

Footnotes

F1: The stock options are exercisable in three installments of 33%, 33% and 34% on February 17, 2013, 2014 and 2015, respectively.