0001127602-21-016658.txt : 20210513 0001127602-21-016658.hdr.sgml : 20210513 20210513173601 ACCESSION NUMBER: 0001127602-21-016658 CONFORMED SUBMISSION TYPE: 4/A PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210511 FILED AS OF DATE: 20210513 DATE AS OF CHANGE: 20210513 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Gupp William R. CENTRAL INDEX KEY: 0001428106 FILING VALUES: FORM TYPE: 4/A SEC ACT: 1934 Act SEC FILE NUMBER: 001-14649 FILM NUMBER: 21921005 MAIL ADDRESS: STREET 1: C/O TREX COMPANY STREET 2: 160 EXETER DRIVE CITY: WINCHESTER STATE: VA ZIP: 22603 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/A 1 form4a.xml PRIMARY DOCUMENT X0306 4/A 2021-05-11 2021-05-12 0001069878 TREX CO INC TREX 0001428106 Gupp William R. C/O TREX COMPANY, INC. 160 EXETER DRIVE WINCHESTER VA 22603-8605 1 Sr VP,Gen. Counsel & Secretary Common Stock 2021-05-11 4 M 0 14000 5.485 A 117455 D Common Stock 2021-05-11 4 D 0 724 106.10 D 116731 D Common Stock 2021-05-11 4 F 0 5988 106.10 D 110743 D Common Stock 2021-05-12 4 S 0 7288 102.85 D 103455 D Stock Appreciation Right 5.485 2021-05-11 4 M 0 14000 0 D 2014-02-12 2023-02-12 Common Stock 14000 0 D Stock Appreciation Rights (SARs) are being exercised pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 5, 2020. 5,988 shares are being surrendered as allowed by the Company's 2014 Stock Incentive Plan to cover the payment of taxes currently due on previously granted restricted shares. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person on August 5, 2020. This Amendment is being filed to correct an error in this box. /s/ William R. Gupp by power of attorney 2021-05-13