TREX CO INC — Director's Dealing 2012

Mar 13, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TREX CO INC (TREX)
CIK: 0001069878
Period of Report: 2012-03-09

Reporting Person: Cline James E (Vice President and CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-03-09	Common Stock	M	12000	$7.52	Acquired	48082	Direct
2012-03-09	Common Stock	D	3303	$27.32	Disposed	44779	Direct
2012-03-09	Common Stock	F	3671	$27.32	Disposed	41108	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-03-09	Stock Appreciation Right	$7.52	M	12000	Disposed	2018-03-03	Common Stock (12000)	Direct

Footnotes

F1: 3,671 shares are being surrendered as allowed by the Company's 2005 Stock Incentive Plan to cover the payment of taxes currently due on the exercise of SARs.

F2: This stock appreciation right becomes exerciseable in approximately three equal installments beginning on the first anniversary of the March 3, 2008 grant date.

F3: 12,000 Stock Appreciation Rights (SARs) are being exercised pursuant to Rule 10b5-1 trading plan adopted by the reporting person on February 28, 2012.