WESTLAKE CORP — Director's Dealing 2019

Aug 19, 2019

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WESTLAKE CHEMICAL CORP (WLK)
CIK: 0001262823
Period of Report: 2019-08-16

Reporting Person: Graff Michael J (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2019-08-17	Common Stock	M	1003	—	Acquired	9473	Direct
2019-08-17	Common Stock	M	1409	—	Acquired	10882	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2019-08-16	Restricted Stock Units	$	A	2387	Acquired		Common Stock (2387)	Direct
2019-08-17	Restricted Stock Units	$	M	1003	Disposed		Common Stock (1003)	Direct
2019-08-17	Restricted Stock Units	$	M	1409	Disposed		Common Stock (1409)	Direct

Footnotes

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

F2: All of the restricted stock units will vest on August 16, 2020.

F3: On August 17, 2016 the reporting person was granted 3,009 restricted stock units vesting in three equal installments beginning on the first anniversary of the grant date.

F4: On August 17, 2018 the reporting person was granted 1,409 restricted stock units vesting on the first anniversary of the grant date.