17 insiders reported 84 Form 4 transactions for TREX CO INC (TREX) over the past 18 months (most recent 2026-08-11). Recent activity: Fernandez Amy M. (SVP, CLO and Secretary) Sell 1,050 shares, GRATZ JAY M (Director) Buy 2,831 shares, ROBINSON PATRICIA B (Director) Buy 2,831 shares, Cline James E (Director) Buy 2,831 shares, ROSE B ANDREW (Director) Buy 1,629 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-11 | Fernandez Amy M. | SVP, CLO and Secretary | Sell | 1,050 | $52,572 |
| 2026-07-30 | GRATZ JAY M | Director | Buy | 2,831 | $120,006 |
| 2026-07-30 | ROBINSON PATRICIA B | Director | Buy | 2,831 | $120,006 |
| 2026-07-30 | Cline James E | Director | Buy | 2,831 | $120,006 |
| 2026-07-30 | ROSE B ANDREW | Director | Buy | 1,629 | $69,053 |
| 2026-07-30 | Volas Gerald | Director | Buy | 2,831 | $120,006 |
| 2026-07-30 | JUSTER KRISTINE L | Director | Buy | 2,831 | $120,006 |
| 2026-07-30 | Lovett Gena C | Director | Buy | 2,831 | $120,006 |
| 2026-07-30 | Keffer David Christian | Director | Buy | 2,831 | $120,006 |
| 2026-07-30 | Tasi Irene | Director | Buy | 1,101 | $46,671 |
| 2026-07-06 | Keffer David Christian | Director | Buy | 131 | $6,378 |
| 2026-07-06 | ROSE B ANDREW | Director | Buy | 526 | $25,611 |
| 2026-06-26 | Rudolph Jacob T. | SVP, CHRO | Sell | 1,400 | $70,000 |
| 2026-04-03 | ROSE B ANDREW | Director | Buy | 700 | $25,599 |
| 2026-04-03 | Keffer David Christian | Director | Buy | 175 | $6,400 |
| 2026-03-03 | Fernandez Amy M. | SVP, CLO and Secretary | Buy | 1,910 | $79,112 |
| 2026-03-03 | Zambanini Adam Dante | EVP, Chief Operating Officer | Buy | 3,623 | $150,065 |
| 2026-03-03 | Zambanini Adam Dante | EVP, Chief Operating Officer | Sell | 1,928 | $79,858 |
| 2026-03-03 | Zambanini Adam Dante | EVP, Chief Operating Officer | Sell | 8,271 | $342,585 |
| 2026-03-03 | FAIRBANKS BRYAN HORIX | President and CEO | Buy | 9,609 | $398,005 |
| 2026-03-03 | FAIRBANKS BRYAN HORIX | President and CEO | Sell | 5,678 | $235,183 |
| 2026-03-03 | FAIRBANKS BRYAN HORIX | President and CEO | Sell | 23,127 | $957,920 |
| 2026-03-03 | ROSE B ANDREW | Director | Buy | 372 | $14,977 |
| 2026-03-03 | ROSE B ANDREW | Director | Buy | 986 | $39,578 |
| 2026-03-03 | ROSE B ANDREW | Director | Buy | 11,022 | $449,036 |
Source: SEC Form 4 filings · as of 2026-08-11