0001140361-12-027653.txt : 20120529 0001140361-12-027653.hdr.sgml : 20120529 20120529160345 ACCESSION NUMBER: 0001140361-12-027653 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20120525 FILED AS OF DATE: 20120529 DATE AS OF CHANGE: 20120529 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: WESTLAKE CHEMICAL CORP CENTRAL INDEX KEY: 0001262823 STANDARD INDUSTRIAL CLASSIFICATION: INDUSTRIAL ORGANIC CHEMICALS [2860] IRS NUMBER: 760346924 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: Chao James CENTRAL INDEX KEY: 0001299505 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-32260 FILM NUMBER: 12874329 MAIL ADDRESS: STREET 1: 2801 POST OAK BLVD. CITY: HOUSTON STATE: TX ZIP: 77056 4 1 doc1.xml FORM 4 X0305 4 2012-05-25 0 0001262823 WESTLAKE CHEMICAL CORP WLK 0001299505 Chao James 2801 POST OAK BLVD. HOUSTON TX 77056 1 1 1 1 Chairman Chairman Common Stock 2012-05-25 4 M 0 35300 14.50 A 126208 D Common Stock 2012-05-25 4 S 0 7400 55.07 D 118808 D Common Stock 2012-05-25 4 S 0 1000 55.08 D 117808 D Common Stock 2012-05-25 4 S 0 1100 55.09 D 116708 D Common Stock 2012-05-25 4 S 0 3370 55.1 D 113338 D Common Stock 2012-05-25 4 S 0 1000 55.11 D 112338 D Common Stock 2012-05-25 4 S 0 100 55.115 D 112238 D Common Stock 2012-05-25 4 S 0 200 55.12 D 112038 D Common Stock 2012-05-25 4 S 0 206 55.13 D 111832 D Common Stock 2012-05-25 4 S 0 224 55.15 D 111608 D Common Stock 2012-05-25 4 S 0 500 55.16 D 111108 D Common Stock 2012-05-25 4 S 0 2300 55.17 D 108808 D Common Stock 2012-05-25 4 S 0 500 55.18 D 108308 D Common Stock 2012-05-25 4 S 0 2428 55.19 D 105880 D Common Stock 2012-05-25 4 S 0 6158 55.20 D 99722 D Common Stock 2012-05-25 4 S 0 297 55.21 D 99425 D Common Stock 2012-05-25 4 S 0 338 55.22 D 99087 D Common Stock 2012-05-25 4 S 0 816 55.23 D 98271 D Common Stock 2012-05-25 4 S 0 3107 55.24 D 95164 D Common Stock 2012-05-25 4 S 0 100 55.2401 D 95064 D Common Stock 2012-05-25 4 S 0 2248 55.25 D 92816 D Common Stock 2012-05-25 4 S 0 308 55.26 D 92508 D Common Stock 2012-05-25 4 S 0 700 55.27 D 91108 D Common Stock 2012-05-25 4 S 0 900 55.28 D 90908 D Employee Option(right to buy) 14.50 2012-05-25 4 M 0 35300 00 A 2007-08-16 2014-08-16 Common Stock 35300 00 D James Chao by Richard C. Kroger POA 2012-05-29