WESTLAKE CORP — Director's Dealing 2013

Mar 15, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WESTLAKE CHEMICAL CORP (WLK)
CIK: 0001262823
Period of Report: 2013-03-13

Reporting Person: BLAKELY ROBERT T (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-03-13	Common Stock	M	887	$24.51	Acquired	12227	Direct
2013-03-13	Common Stock	M	957	$20.825	Acquired	13184	Direct
2013-03-13	Common Stock	S	444	$94.961	Disposed	12740	Direct
2013-03-13	Common Stock	S	1400	$94.963	Disposed	11340	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-03-13	Employee Option (right to buy)	$24.51	M	887	Disposed	2019-08-20	Common Stock (887)	Direct
2013-03-13	Employee Option (right to buy)	$20.825	M	957	Disposed	2018-08-15	Common Stock (957)	Direct