WESTLAKE CORP — Director's Dealing 2026

Mar 2, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: WESTLAKE CORP (WLK)
CIK: 0001262823
Period of Report: 2026-02-27

Reporting Person: Bender Mark Steven (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-27	Common Stock	M	6199	$65.8125	Acquired	68041	Direct
2026-02-27	Common Stock	M	6494	$86.5379	Acquired	74535	Direct
2026-02-27	Common Stock	D	12693	$98.20	Disposed	61842	Direct
2026-02-27	Common Stock	S	16988	$100.91	Disposed	44854	Direct
2026-02-27	Common Stock	S	421	$101.515	Disposed	44433	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-02-27	Employee Option (right to buy)	$65.8125	M	6199	Disposed	2030-02-14	Common Stock (6199)	Direct
2026-02-27	Employee Option (right to buy)	$86.5379	M	6494	Disposed	2031-02-19	Common Stock (6494)	Direct

Footnotes

F1: Weighted average price. These shares were sold in multiple transactions at prices ranging from $100.38 to $101.36 inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth above.

F2: The stock options are exercisable in three installments of 33%. 33% and 34% on February 14, 2021, 2022 and 2023, respectively.

F3: The stock options are exercisable in three installments of 33%, 33% and 34% on February 19, 2022, 2023 and 2024, respectively.