R. William Gupp

Insider Trading: Sales

Symbol	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
TREX	$30.81	200	$6,162.00	49,352	2012-09-04	Filing
TREX	$30.84	200	$6,168.00	49,552	2012-09-04	Filing
TREX	$25.48	150	$3,822.00	49,177	2012-08-01	Filing
TREX	$25.52	300	$7,656.00	49,327	2012-08-01	Filing
TREX	$25.53	100	$2,553.00	49,627	2012-08-01	Filing
TREX	$25.54	200	$5,108.00	49,727	2012-08-01	Filing
TREX	$29.80	100	$2,980.00	33,961	2012-07-02	Filing
TREX	$29.85	163	$4,865.55	34,061	2012-07-02	Filing
TREX	$30.10	87	$2,618.70	34,224	2012-07-02	Filing
TREX	$29.92	100	$2,992.00	34,311	2012-07-02	Filing
TREX	$29.97	100	$2,997.00	34,411	2012-07-02	Filing
TREX	$30.03	100	$3,003.00	34,511	2012-07-02	Filing
TREX	$29.93	100	$2,993.00	34,611	2012-07-02	Filing
TREX	$27.83	2	$55.66	34,133	2012-06-01	Filing
TREX	$27.85	100	$2,785.00	34,135	2012-06-01	Filing
TREX	$27.88	100	$2,788.00	34,235	2012-06-01	Filing
TREX	$27.93	48	$1,340.64	34,335	2012-06-01	Filing
TREX	$27.89	100	$2,789.00	34,383	2012-06-01	Filing
TREX	$28.04	100	$2,804.00	34,483	2012-06-01	Filing
TREX	$28.02	100	$2,802.00	34,583	2012-06-01	Filing