Adam Dante Zambanini - 10 Nov 2021 Form 4 Insider Report for TREX CO INC (TREX)

Signature
/s/ William R. Gupp by power of attorney
Issuer symbol
TREX
Transactions as of
10 Nov 2021
Net transactions value
-$477,786
Form type
4
Filing time
12 Nov 2021, 08:52:25 UTC
Previous filing
06 Aug 2021
Next filing
15 Feb 2022

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction TREX Common Stock Options Exercise $76,072 +4,342 +2.6% $17.52* 170,973 10 Nov 2021 Direct F1
transaction TREX Common Stock Disposed to Issuer $76,101 -598 -0.35% $127.26 170,375 10 Nov 2021 Direct
transaction TREX Common Stock Tax liability $214,942 -1,689 -0.99% $127.26 168,686 10 Nov 2021 Direct F2
transaction TREX Common Stock Sale $262,814 -2,055 -1.2% $127.89 166,631 11 Nov 2021 Direct F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction TREX Stock Appreciation Right Options Exercise $0 -4,342 -100% $0.000000* 0 10 Nov 2021 Common Stock 4,342 $17.52 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Stock Appreciation Rights (SARs) are being exercised pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 17, 2021.
F2 1,689 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.
F3 The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person on May 17, 2021.