17 insiders reported 86 Form 4 transactions for TREX CO INC (TREX) over the past 18 months (most recent 2026-07-06). Recent activity: ROSE B ANDREW (Director) Buy 526 shares, Keffer David Christian (Director) Buy 131 shares, Rudolph Jacob T. (SVP, CHRO) Sell 1,400 shares, ROSE B ANDREW (Director) Buy 700 shares, Keffer David Christian (Director) Buy 175 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-06 | ROSE B ANDREW | Director | Buy | 526 | $25,611 |
| 2026-07-06 | Keffer David Christian | Director | Buy | 131 | $6,378 |
| 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 | ROSE B ANDREW | Director | Buy | 986 | $39,578 |
| 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 | Zambanini Adam Dante | EVP, Chief Operating Officer | Buy | 3,623 | $150,065 |
| 2026-03-03 | ROSE B ANDREW | Director | Buy | 11,022 | $449,036 |
| 2026-03-03 | Fernandez Amy M. | SVP, CLO and Secretary | Buy | 1,910 | $79,112 |
| 2026-03-03 | Fernandez Amy M. | SVP, CLO and Secretary | Sell | 1,083 | $44,858 |
| 2026-03-03 | Fernandez Amy M. | SVP, CLO and Secretary | Sell | 4,496 | $186,224 |
| 2026-03-03 | Rudolph Jacob T. | SVP, CHRO | Buy | 1,250 | $51,775 |
| 2026-03-03 | Rudolph Jacob T. | SVP, CHRO | Sell | 663 | $27,461 |
| 2026-03-03 | Rudolph Jacob T. | SVP, CHRO | Sell | 2,850 | $118,047 |
| 2026-03-03 | ROSE B ANDREW | Director | Buy | 372 | $14,977 |
| 2026-02-25 | Zambanini Adam Dante | EVP, Chief Operating Officer | Buy | 18,914 | $783,985 |
| 2026-02-25 | Rudolph Jacob T. | SVP, CHRO | Buy | 6,321 | $262,005 |
| 2026-02-25 | Rudolph Jacob T. | SVP, CHRO | Buy | 6,321 | $262,005 |
| 2026-02-25 | Fernandez Amy M. | SVP, CLO and Secretary | Buy | 10,181 | $422,002 |
| 2026-02-25 | Fernandez Amy M. | SVP, CLO and Secretary | Buy | 10,181 | $422,002 |
Source: SEC Form 4 filings · as of 2026-07-06