Jean-Marc Gilson - 21 Feb 2025 Form 4 Insider Report for WESTLAKE CORP (WLK)

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	Employee Option (right to buy)	Award	$0	+26,391		$0.000000	26,391	21 Feb 2025	Common Stock	26,391	$110.15	Direct	F1
transaction	WLK	Restricted Stock Units	Award	$0	+8,749		$0.000000	8,749	21 Feb 2025	Common Stock	8,749		Direct	F2, F3

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

Id	Content
F1	The stock options are excercisable in three installments of 33%, 33% and 34% on February 21, 2026, 2027 and 2028, respectively.
F2	Each restricted stock unit ("RSU") represents a contingent right to recieve one share of the Issuer's common stock.
F3	All of the RSUs will vest on February 21, 2028.