0000950170-24-095193.txt : 20240812 0000950170-24-095193.hdr.sgml : 20240812 20240812112456 ACCESSION NUMBER: 0000950170-24-095193 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240809 FILED AS OF DATE: 20240812 DATE AS OF CHANGE: 20240812 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: MCCOLLUM MARK A CENTRAL INDEX KEY: 0001215888 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-32260 FILM NUMBER: 241195527 MAIL ADDRESS: STREET 1: 3000 NORTH SAM HOUSTON PARKWAY E. CITY: HOUSTON STATE: TX ZIP: 77002 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 2024-08-09 0001262823 WESTLAKE CORP WLK 0001215888 MCCOLLUM MARK A 2801 POST OAK BLVD., STE. 600 HOUSTON TX 77056 true false false false false Common Stock 2024-08-11 4 M false 1136 A 8528 D Restricted Stock Units 2024-08-09 4 A false 1128 0 A Common Stock 1128 1128 D Restricted Stock Units 2024-08-11 4 M false 1136 0 D Common Stock 1136 0 D Restricted stock units convert into the Issuer's common stock on a one-for-one basis. All of the restricted stock units will vest on August 9, 2025. On August 11, 2023 the reporting person was granted 1,136 restricted stock units vesting on the first anniversary of the grant date. Mark McCollum by J Feng POA 2024-08-12