0001140361-16-054337.txt : 20160222 0001140361-16-054337.hdr.sgml : 20160222 20160222160559 ACCESSION NUMBER: 0001140361-16-054337 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20160218 FILED AS OF DATE: 20160222 DATE AS OF CHANGE: 20160222 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: Mattina Michael J. CENTRAL INDEX KEY: 0001638948 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-32260 FILM NUMBER: 161445073 MAIL ADDRESS: STREET 1: 2801 POST OAK BLVD. STREET 2: SUITE 600 CITY: HOUSTON STATE: TX ZIP: 77056 FORMER NAME: FORMER CONFORMED NAME: Mattina Mike DATE OF NAME CHANGE: 20150407 4 1 doc1.xml FORM 4 X0306 4 2016-02-18 0 0001262823 WESTLAKE CHEMICAL CORP WLK 0001638948 Mattina Michael J. 2801 POST OAK BLVD HOUSTON TX 77056 0 1 0 0 Sr. VP, Polyethylene Employee Option (right to buy) 44.42 2016-02-18 4 A 0 8741 0 A 2026-02-18 Common Stock 8741 8741 D Restricted Stock Units 2016-02-18 4 A 0 2296 0 A Common Stock 2296 2296 D The stock options are exercisable in three installments of 33%, 33%, and 34% on February 18, 2017, 2018 and 2019, respectively. Each restricted stock unit represents a contingent right to receive one share of Westlake Chemical Corporation common stock. The restricted stock units will vest 3 years from the date of grant (February 18, 2019). Michael J. Mattina by J. Iglesias PoA 2016-02-22