0001567619-21-005878.txt : 20210309 0001567619-21-005878.hdr.sgml : 20210309 20210309075822 ACCESSION NUMBER: 0001567619-21-005878 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210308 FILED AS OF DATE: 20210309 DATE AS OF CHANGE: 20210309 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Buesinger Robert F. CENTRAL INDEX KEY: 0001488587 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-32260 FILM NUMBER: 21724125 MAIL ADDRESS: STREET 1: 2801 POST OAK BLVD, SUITE 600 CITY: HOUSTON STATE: TX ZIP: 77056 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: WESTLAKE CHEMICAL CORP CENTRAL INDEX KEY: 0001262823 STANDARD INDUSTRIAL CLASSIFICATION: INDUSTRIAL ORGANIC CHEMICALS [2860] 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 4 1 doc1.xml FORM 4 X0306 4 2021-03-08 0 0001262823 WESTLAKE CHEMICAL CORP WLK 0001488587 Buesinger Robert F. 2801 POST OAK BOULEVARD, SUITE 600 HOUSTON TX 77056 0 1 0 0 EVP, Vinyl Products Common Stock 2021-03-08 4 M 0 8652 61.865 A 21951 D Common Stock 2021-03-08 4 M 0 7861 65.8125 A 29812 D Common Stock 2021-03-08 4 S 0 8652 92.50 D 21160 D Common Stock 2021-03-08 4 S 0 7861 95.00 D 13299 D Employee Option (right to buy) 61.865 2021-03-08 4 M 0 8652 0 D 2027-02-17 Common Stock 8652 00 D Employee Option (right to buy) 65.8125 2021-03-08 4 M 0 7861 0 D 2030-02-14 Common Stock 7861 15961 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $92.50 to $92.52, inclusive. The reporting person undertakes to provide to Westlake Chemical Corp., any security holder of Westlake Chemical Corp. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. The stock options are excercisable in three installments of 33%, 33% and 34% on February 17, 2018, 2019 and 2020. The stock options are excercisable in three installments of 33%, 33% and 34% on February 14, 2021, 2022 and 2023. Robert F. Buesinger by J. Feng POA 2021-03-09