Chao Catherine T. - 12 May 2024 Form 4 Insider Report for WESTLAKE CORP (WLK)

Role: Director
Signature: Catherine T. Chao by J Feng POA
Issuer symbol: WLK
Transactions as of: 12 May 2024
Net transactions value: $0
Form type: 4
Filing time: 13 May 2024, 09:22:59 UTC
Previous filing: 01 Sep 2023
Next filing: 12 Aug 2024
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	WLK	Common Stock	Options Exercise		+1,316	+66%		3,316	12 May 2024	Direct	F1
holding	WLK	Common Stock						19,423	12 May 2024	by Trust	F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	WLK	Restricted Stock Units	Options Exercise	$0	-1,316	-100%	$0.000000^*	0	12 May 2024	Common Stock	1,316		Direct	F1, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Restricted stock units ("RSUs") convert into the Issuer's common stock on a one-for-one basis.
F2	These shares are held in a trust for the benefit of the reporting person, who also serves as sole trustee.
F3	On May 12, 2023, the reporting person was granted 1,316 RSUs vesting on the first anniversay of the grant date.