0001140361-18-011121.txt : 20180301 0001140361-18-011121.hdr.sgml : 20180301 20180301124725 ACCESSION NUMBER: 0001140361-18-011121 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20180228 FILED AS OF DATE: 20180301 DATE AS OF CHANGE: 20180301 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: 18655735 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 2018-02-28 0 0001262823 WESTLAKE CHEMICAL CORP WLK 0001298504 Mangieri George J 2801 POST OAK BOULEVARD, SUITE 600 HOUSTON TX 77056 0 1 0 0 SVP & Chief Accounting Officer Common Stock 2018-02-28 4 M 0 1489 61.865 A 5810 D Common Stock 2018-02-28 4 M 0 1810 44.420 A 7620 D Common Stock 2018-02-28 4 M 0 1036 68.09 A 8656 D Common Stock 2018-02-28 4 S 0 4335 111.22 D 4321 D Employee Option (right to buy) 61.865 2018-02-28 4 M 0 1489 0 D 2027-02-17 Common Stock 1489 3026 D Employee Option (right to buy) 44.420 2018-02-28 4 M 0 1810 0 D 2026-02-18 Common Stock 1810 1865 D Employee Option (right to buy) 68.09 2018-02-28 4 M 0 1036 0 D 2025-02-20 Common Stock 1036 0 D The stock options are excercisable in three installments of 33%, 33% and 34% on February 17, 2018, 2019 and 2020, respectively. The stock options are excercisable in three installments of 33%, 33% and 34% on February 18, 2017, 2018 and 2019, respectively. The stock options are excercisable in three installments of 33%, 33% and 34% on February 20, 2016, 2017 and 2018, respectively. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $111.2128 to $111.265, 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. George Mangieri by J. Feng POA 2018-03-01