WESTLAKE CORP — Director's Dealing 2012

Dec 11, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WESTLAKE CHEMICAL CORP (WLK)
CIK: 0001262823
Period of Report: 2012-12-07

Reporting Person: Kenner Andrew (VP - Manufacturing)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-12-07	Common Stock	M	6428	$14.235	Acquired	18573	Direct
2012-12-07	Common Stock	S	1000	$73.73	Disposed	17573	Direct
2012-12-07	Common Stock	S	2400	$73.79	Disposed	15173	Direct
2012-12-07	Common Stock	S	100	$73.83	Disposed	15073	Direct
2012-12-07	Common Stock	S	500	$73.84	Disposed	14573	Direct
2012-12-07	Common Stock	S	1028	$73.94	Disposed	13545	Direct
2012-12-07	Common Stock	S	1200	$73.9401	Disposed	12345	Direct
2012-12-07	Common Stock	S	200	$73.95	Disposed	12145	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-12-07	Employee Option (right to buy)	$14.235	M	6428	Acquired	2019-02-13	Common Stock (6428)	Direct