0000950170-24-017625.txt : 20240221 0000950170-24-017625.hdr.sgml : 20240221 20240221103030 ACCESSION NUMBER: 0000950170-24-017625 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240216 FILED AS OF DATE: 20240221 DATE AS OF CHANGE: 20240221 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Janssens Thomas J. CENTRAL INDEX KEY: 0001834230 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-32260 FILM NUMBER: 24656784 MAIL ADDRESS: STREET 1: 2801 POST OAK BLVD. STREET 2: 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 2024-02-16 0001262823 WESTLAKE CORP WLK 0001834230 Janssens Thomas J. 2801 POST OAK BLVD., STE. 600 HOUSTON TX 77056 false true false false SVP, Ops - PEM & Corp Logistic false Common Stock 2024-02-16 4 A false 2346 0 A 11877 D Common Stock 2024-02-19 4 M false 1170 0 A 13047 D Common Stock 2024-02-20 4 F false 896 129.92 D 12151 D Common Stock 2024-02-20 4 F false 88 138.65 D 12063 D Restricted Stock Units 2024-02-19 4 M false 1170 0 D Common Stock 1170 0 D Represents shares of common stock that vested on February 16, 2024 upon the approval of the Issuer's Board of Directors ("BOD"), and the determination by the Compensation Committee of the BOD, of the satisfaction of performance criteria underlying an award of performance stock units ("PSUs") granted to the Reporting Person on February 19, 2021 under the terms of the Issuer's 2013 Omnibus Incentive Plan. Restricted stock units ("RSUs") convert into the Issuer's common stock on a one-for-one basis. Shares otherwise issuable were withheld to satisfy tax obligations arising out of the vesting of the reporting persons RSUs and PSUs. Weighted average price. These shares were sold in multiple transactions at prices ranging from $138.63 to $138.66 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. On February 19, 2021, the reporting person was granted 1,170 RSUs vesting on the third anniversay of the grant date. Thomas J. Janssens by J Feng POA 2024-02-21