WESTLAKE CORP - Director's Dealing 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WESTLAKE CHEMICAL CORP (WLK)
CIK: 0001262823
Period of Report: 2020-02-14

Reporting Person: Ederington L. Benjamin (SVP, GC, CAO and Secretary)

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-02-14	Employee Option (right to buy)	$65.8125	A	23244	Acquired	2030-02-14	Common Stock (23244)	Direct
2020-02-14	Restricted Stock Units	$	A	5495	Acquired		Common Stock (5495)	Direct
2020-02-14	Restricted Stock Units	$	A	1096	Acquired		Common Stock (1096)	Direct
2020-02-14	Restricted Stock Units	$	A	7597	Acquired		Common Stock (7597)	Direct

F1: The stock options are excercisable in three installments of 33%, 33% and 34% on February 14, 2021, 2022 and 2023, respectively.

F2: Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

F3: All of these restricted stock units will vest on February 14, 2023.

F4: All of these restricted stock units will vest on February 14, 2021.

F5: All of these restricted stock units will vest on February 14, 2025.