WESTLAKE CORP — Director's Dealing 2018

Feb 22, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WESTLAKE CHEMICAL CORP (WLK)
CIK: 0001262823
Period of Report: 2018-02-20

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-02-20	Common Stock	M	913	—	Acquired	4575	Direct
2018-02-21	Common Stock	F	254	$106.98	Disposed	4321	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2018-02-20	Restricted Stock Units	$	M	913	Disposed		Common Stock (913)	Direct

Footnotes

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

F2: On February 20, 2015, the reporting person was granted 913 restricted stock units vesting on the third anniversary of the grant date.