0001127602-11-012341.txt : 20110405 0001127602-11-012341.hdr.sgml : 20110405 20110405144450 ACCESSION NUMBER: 0001127602-11-012341 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20110401 FILED AS OF DATE: 20110405 DATE AS OF CHANGE: 20110405 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: ROBINSON PATRICIA B CENTRAL INDEX KEY: 0001185204 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-14649 FILM NUMBER: 11739619 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: TREX CO INC CENTRAL INDEX KEY: 0001069878 STANDARD INDUSTRIAL CLASSIFICATION: LUMBER & WOOD PRODUCTS (NO FURNITURE) [2400] IRS NUMBER: 541910453 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 160 EXETER DRIVE CITY: WINCHESTER STATE: VA ZIP: 22603-8605 BUSINESS PHONE: 5405426300 MAIL ADDRESS: STREET 1: 160 EXETER DRIVE CITY: WINCHESTER STATE: VA ZIP: 22603-8605 4 1 form4.xml PRIMARY DOCUMENT X0303 4 2011-04-01 0001069878 TREX CO INC TREX 0001185204 ROBINSON PATRICIA B C/O TREX COMPANY, INC. 160 EXETER DRIVE WINCHESTER VA 22603-8605 1 Common Stock 2011-04-01 4 M 0 233 31.01 A 233 D Common Stock 2011-04-01 4 S 0 233 32.78 D 0 D Stock Options (Right to Buy) 31.01 2011-04-01 4 M 0 233 0 D 2002-04-02 2011-04-02 Common Stock 233 0 D The exercise of options reported on this Form 4 were effected pursuant to Rule 10b5-1 trading plan adopted by the reporting person on March 4, 2011. The sales reported in this Form 4 were effected pursuant to Rule 10b5-1 trading plan adopted by the reporting person on March 4, 2011. /s/ William R. Gupp by power of attorney 2011-04-05