Form4insider filings, from the source

Company · CIK 0001069878 · SIC 2400 — Lumber & Wood Products (No Furniture) · NYSE

TREX CO INC · TREX

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $123k · 2net −$123k
$10k$10k$100k$100k$1M$1MbuyssalesMar 28Apr 27May 28Jun 28Jul 28Aug 28Sep 28

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 24, 2026 AForm 4 →Aug 28, 4:24 pm EDTBrian J. TaylorSVP, Chief Commercial Officer9,520$47.27$450,0109,520— late
Aug 7, 2026 SForm 4 →Aug 11, 4:25 pm EDTAmy M. FernandezSVP, CLO and Secretary1,050$50.07$52,57267,794−1.53%
Jul 29, 2026 AForm 4 →Jul 30, 8:04 pm EDTGerald VolasDirector2,831$42.39$120,00644,405—
Jul 29, 2026 AForm 4 →Jul 30, 7:59 pm EDTIrene TasiDirector1,101$42.39$46,6712,357—
Jul 29, 2026 AForm 4 →Jul 30, 7:55 pm EDTB Andrew RoseDirector1,629$42.39$69,05317,038—
Jul 29, 2026 AForm 4 →Jul 30, 7:51 pm EDTPatricia B RobinsonDirector2,831$42.39$120,00673,162—
Jul 29, 2026 AForm 4 →Jul 30, 7:47 pm EDTGena C LovettDirector2,831$42.39$120,00610,903—
Jul 29, 2026 AForm 4 →Jul 30, 7:45 pm EDTDavid Christian KefferDirector2,831$42.39$120,0066,386—
Jul 29, 2026 AForm 4 →Jul 30, 7:38 pm EDTKristine L JusterDirector2,831$42.39$120,00615,729—
Jul 29, 2026 AForm 4 →Jul 30, 7:26 pm EDTJay M GratzDirector2,831$42.39$120,00633,705—
Jul 29, 2026 AForm 4 →Jul 30, 7:19 pm EDTJames E ClineDirector2,831$42.39$120,00645,807—
Jul 1, 2026 AForm 4 →Jul 6, 4:26 pm EDTB Andrew RoseDirector526$48.69$25,61115,409—
Jul 1, 2026 AForm 4 →Jul 6, 4:20 pm EDTDavid Christian KefferDirector131$48.69$6,3783,555—
Jun 25, 2026 SForm 4 →Jun 26, 2:18 pm EDTJacob T. RudolphSVP, CHRO1,400$50.00$70,00036,631−3.68%10b5-1

Reported at this company — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.