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Filing Details

Accession Number:: 0001127602-11-008650
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2011-03-03 14:32:00
Reporting Period:: 2011-03-01

Filing Date:: 2011-03-03
Accepted Time:: 2011-03-03 14:32:00
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1069878	Trex Co Inc	TREX	Lumber & Wood Products (No Furniture) (2400)	541910453

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1428106	R. William Gupp	C/O Trex Company, Inc. 160 Exeter Drive Winchester VA 22603-8605	Cao, Gen. Counsel & Secretary	No	Yes	No	No

Reported Non-Derivative Transactions

Show Other Fields >>

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2011-03-01	2,000	$9.14	40,613	No	4	M	Direct
Common Stock	Disposition	2011-03-01	594	$30.78	40,019	No	4	D	Direct
Common Stock	Disposition	2011-03-01	594	$30.78	39,425	No	4	F	Direct
Common Stock	Disposition	2011-03-01	450	$29.92	38,975	No	4	S	Direct
Common Stock	Disposition	2011-03-01	100	$30.57	38,875	No	4	S	Direct
Common Stock	Disposition	2011-03-01	300	$30.58	38,575	No	4	S	Direct
Common Stock	Disposition	2011-03-01	500	$30.56	38,075	No	4	S	Direct
Common Stock	Disposition	2011-03-01	200	$30.58	37,875	No	4	S	Direct
Common Stock	Disposition	2011-03-01	200	$30.55	37,675	No	4	S	Direct
Common Stock	Disposition	2011-03-01	200	$30.57	37,475	No	4	S	Direct
Common Stock	Disposition	2011-03-01	100	$30.56	37,375	No	4	S	Direct
Common Stock	Disposition	2011-03-01	200	$30.56	37,175	No	4	S	Direct
Common Stock	Disposition	2011-03-01	203	$30.59	36,972	No	4	S	Direct
Common Stock	Disposition	2011-03-01	200	$30.51	36,772	No	4	S	Direct
Common Stock	Disposition	2011-03-01	100	$30.50	36,672	No	4	S	Direct
Common Stock	Disposition	2011-03-01	100	$30.50	36,572	No	4	S	Direct
Common Stock	Disposition	2011-03-01	400	$30.51	36,172	No	4	S	Direct
Common Stock	Disposition	2011-03-01	200	$30.50	35,972	No	4	S	Direct
Common Stock	Disposition	2011-03-01	400	$30.52	35,572	No	4	S	Direct
Common Stock	Disposition	2011-03-01	200	$30.53	35,372	No	4	S	Direct
Common Stock	Disposition	2011-03-01	700	$30.52	34,672	No	4	S	Direct
Common Stock	Disposition	2011-03-01	200	$30.54	34,472	No	4	S	Direct
Common Stock	Acquisiton	2011-03-01	550	$20.00	35,022	No	4	M	Direct
Common Stock	Acquisiton	2011-03-02	3,953	$20.00	38,975	No	4	M	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
No	4	D	Direct
No	4	F	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	M	Direct
No	4	M	Direct

Reported Derivative Transactions

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Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Appreciation Right	Disposition	2011-03-01	2,000	$0.00	2,000	$9.14
Common Stock	Stock Options (Right to Buy)	Disposition	2011-03-01	550	$0.00	550	$20.00
Common Stock	Stock Options (Right to Buy)	Disposition	2011-03-02	3,953	$0.00	3,953	$20.00

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
26,344	2009-05-07	2018-05-07	No	4	M	Direct
8,009	2003-02-21	2012-02-21	No	4	M	Direct
0	2003-02-21	2012-02-21	No	4	M	Direct

Footnotes

594 shares are being surrendered to cover payment of taxes currently due on the exercise of SARs.
2,000 Stock Appreciation Rights (SARs) are being exercised which were granted pursuant to the Company's 2005 Stock Incentive Plan on May 7, 2008.
The sales reported in this Form 4 were effected pursuant to Rule 10b5-1 trading plan adopted by the reporting person on May 10, 2010.
The stock appreciation right becomes exerciseable in three equal installments beginning on the first anniversary date of the transaction date.