0000950170-24-028945.txt : 20240311 0000950170-24-028945.hdr.sgml : 20240311 20240311093859 ACCESSION NUMBER: 0000950170-24-028945 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240307 FILED AS OF DATE: 20240311 DATE AS OF CHANGE: 20240311 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Buesinger Robert F. CENTRAL INDEX KEY: 0001488587 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-32260 FILM NUMBER: 24736793 MAIL ADDRESS: STREET 1: 2801 POST OAK BLVD, SUITE 600 CITY: HOUSTON STATE: TX ZIP: 77056 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: WESTLAKE CORP CENTRAL INDEX KEY: 0001262823 STANDARD INDUSTRIAL CLASSIFICATION: INDUSTRIAL ORGANIC CHEMICALS [2860] ORGANIZATION NAME: 08 Industrial Applications and Services IRS NUMBER: 760346924 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 2801 POST OAK BLVD STREET 2: SUITE 600 CITY: HOUSTON STATE: TX ZIP: 77056 BUSINESS PHONE: 713-960-9111 MAIL ADDRESS: STREET 1: 2801 POST OAK BLVD STREET 2: SUITE 600 CITY: HOUSTON STATE: TX ZIP: 77056 FORMER COMPANY: FORMER CONFORMED NAME: WESTLAKE CHEMICAL CORP DATE OF NAME CHANGE: 20030908 4 1 ownership.xml 4 X0508 4 2024-03-07 false 0001262823 WESTLAKE CORP WLK 0001488587 Buesinger Robert F. 2801 POST OAK BLVD., STE. 600 HOUSTON TX 77056 false true false false EVP, HIP, IT & Digital false Common Stock 2024-03-07 4 M false 5005 86.5379 A 30149 D Common Stock 2024-03-07 4 M false 7665 108.1175 A 37814 D Common Stock 2024-03-07 4 D false 12670 142.55 D 25144 D Employee Option (right to buy) 86.5379 2024-03-07 4 M false 5005 0 D 2031-02-19 Common Stock 5005 0 D Employee Option (right to buy) 108.1175 2024-03-07 4 M false 7665 0 D 2032-02-18 Common Stock 7665 3950 D The stock options are exercisable in three installments of 33%. 33% and 34% on February 19, 2022, 2023 and 2024, respectively. The stock options are exercisable in three installments of 33%, 33% and 34% on February 18, 2023, 2024 and 2025, respectively. Robert F. Buesinger by J Feng POA 2024-03-11