SEC Form 4 · accession 0001127602-18-006493

TREX CO INC · TREX

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner

Officer — Sr VP,Gen. Counsel & Secretary

Period of report

Feb 14, 2018

Accepted (ET)

Feb 16, 2018 · 7:54 am EST

Rule 10b5-1 plan

unknown — predates the checkbox

Issuer CIK

0001069878

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I
Common Stock	Feb 14, 2018	A	4,416	$112.42	A	42,562	D
Common Stock	Feb 14, 2018	F	4,102	$112.42	D	38,460	D
Common Stock	Feb 14, 2018	A	1,419	$112.42	A	39,879	D
Common Stock	Feb 14, 2018	A	2,028	$112.42	A	41,907	D

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Stock Appreciation Right	$112.42	Feb 14, 2018	A	1,548	A	Feb 14, 2019	Feb 14, 2028	Common Stock	1,548	1,548	D

F1Represents net share difference between target performance-based shares and actual vested shares, based upon actual performance for the Company.
F24,102 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.
F3This restricted stock unit vests over a three-year period in three equal annual installments beginning on the first anniversary of the grant date.
F4This restricted stock unit award is performance-based, and vests over a three-year period in three equal installments beginning on the first anniversary of the grant date. The number of shares set forth above is the target number of shares. The number of shares that will actually vest each year will be based upon performance against certain financial goals for the Company, and will range from 0% to 200% of the target number of shares.
F5The stock appreciation right becomes exercisable in three equal installments beginning on the first anniversary of the grant date.