WESTLAKE CORP — Director's Dealing 2017

Feb 16, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WESTLAKE CHEMICAL CORP (WLK)
CIK: 0001262823
Period of Report: 2017-02-14

Reporting Person: Mangieri George J (VP & Chief Accounting Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-02-14	Common Stock	M	972	—	Acquired	13475	Direct
2017-02-15	Common Stock	F	320	$64.01	Disposed	13155	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-02-14	Restricted Stock Units	$	M	972	Disposed		Common Stock (972)	Direct

Footnotes

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

F2: On February 14, 2014, the reporting person was granted 972 restricted stock units vesting on the third anniversary of the grant date.