0001140361-15-040842.txt : 20151112 0001140361-15-040842.hdr.sgml : 20151112 20151112160501 ACCESSION NUMBER: 0001140361-15-040842 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20151110 FILED AS OF DATE: 20151112 DATE AS OF CHANGE: 20151112 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 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Mangieri George J CENTRAL INDEX KEY: 0001298504 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-32260 FILM NUMBER: 151224792 MAIL ADDRESS: STREET 1: 2801 POST OAK BLVD, SUITE 600 CITY: HOUSTON STATE: TX ZIP: 77056 4 1 doc1.xml FORM 4 X0306 4 2015-11-10 0 0001262823 WESTLAKE CHEMICAL CORP WLK 0001298504 Mangieri George J 2801 POST OAK BOULEVARD, SUITE 600 HOUSTON TX 77056 0 1 0 0 VP & Chief Accounting Officer Common Stock 2015-11-10 4 M 0 1974 30.0525 A 25769 D Common Stock 2015-11-10 4 S 0 1974 60.2124 D 23795 D Common Stock 2015-11-10 4 S 0 811 60.1901 D 22984 D Employee Option (right to buy) 30.0525 2015-11-10 4 M 0 1974 0 D 2022-02-17 Common Stock 1974 0 D The stock options are exercisable in three installments of 33%, 33%, and 34% on February 17, 2013, 2014, and 2015, respectively. George J. Mangieri by J. Iglesias POA 2015-11-12