0001140361-11-015736.txt : 20110310 0001140361-11-015736.hdr.sgml : 20110310 20110310160754 ACCESSION NUMBER: 0001140361-11-015736 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20110308 FILED AS OF DATE: 20110310 DATE AS OF CHANGE: 20110310 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: Mangieri George J CENTRAL INDEX KEY: 0001298504 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-32260 FILM NUMBER: 11678586 MAIL ADDRESS: STREET 1: 2801 POST OAK BLVD., SUITE 600 CITY: HOUSTON STATE: TX ZIP: 77056 4 1 doc1.xml FORM 4 X0303 4 2011-03-08 0 0001262823 WESTLAKE CHEMICAL CORP WLK 0001298504 Mangieri George J 2801 POST OAK BLVD. HOUSTON TX 77056 0 1 0 0 VP & Chief Accounting Officer Common Stock 2011-03-08 4 M 0 3225 14.235 D 28980 D Common Stock 2011-03-08 4 S 0 1900 48.64 D 27080 D Common Stock 2011-03-08 4 S 0 125 48.65 D 26955 D Common Stock 2011-03-08 4 S 0 200 48.66 D 26755 D Common Stock 2011-03-08 4 S 0 1000 48.695 D 25755 D Employee Option (right to buy) 14.235 2011-03-08 4 M 0 3225 0 A 2010-02-13 2019-02-13 Common Stock 3225 10256 D George J. Mangieri by Richard Kroger PoA 2011-03-10