🕵️ TREX Co Inc ($TREX)
SEC insider & ownership activity, last 12 months · CIK 1069878 · every row links its SEC filing
Over the last 12 months insiders sold $123K against $985K of open-market buying. Rose B. Andrew bought $504K in discretionary trades (Mar). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
3 buyers, $985K (5 lots) · 2 sellers, $123K (2 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Rose B. Andrew | 3 | $504K | 0 | – | Mar 3, 2026 |
| Gandhi Prithvi | 1 | $479K | 0 | – | Nov 14, 2025 |
| Jacob T. Rudolph | 1 | $3K | 1 | $70K | Jun 25, 2026 |
| Amy M. Fernandez | 0 | – | 1 | $53K | Aug 7, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| BlackRock, Inc. | 9.8% | 13G | Apr 24, 2025 | filing ↗ | |
| Wellington Management Group LLP | 9.5% | 13G | Aug 13, 2026 | filing ↗ | |
| Wellington Group Holdings LLP | 9.5% | 13G | Aug 13, 2026 | filing ↗ | |
| Wellington Investment Advisors Holdings LLP | 9.5% | 13G | Aug 13, 2026 | filing ↗ | |
| Wellington Management Company LLP | 8.0% | 13G | Aug 13, 2026 | filing ↗ | |
| Millennium Management LLC | 5.5% | 13G | Aug 7, 2026 | filing ↗ | |
| Millennium Group Management LLC | 5.5% | 13G | Aug 7, 2026 | filing ↗ | |
| Israel A. Englander | 5.5% | 13G | Aug 7, 2026 | filing ↗ | |
| Vanguard Capital Management | 5.4% | 13G | Apr 30, 2026 | filing ↗ | |
| AllianceBernstein L.p. | exited | 13G | Sep 4, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Amy M. Fernandez | $52K | Aug 7, 2026 | filing ↗ |
| Jacob T. Rudolph | $70K | Jun 25, 2026 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Officer/director changes (5.02) | Aug 24, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Aug 24, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 24, 2026 | filing ↗ |
| Earnings (2.02) | Aug 4, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 4, 2026 | filing ↗ |
| Earnings (2.02) | Aug 4, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 4, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jul 14, 2026 | filing ↗ |
| Earnings (2.02) | Jul 13, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 13, 2026 | filing ↗ |
| Other events (8.01) | Jul 13, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 13, 2026 | filing ↗ |
| Earnings (2.02) | May 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 7, 2026 | filing ↗ |
| Earnings (2.02) | May 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 7, 2026 | filing ↗ |
| Officer/director changes (5.02) | May 4, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 4, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 4, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 4, 2026 | filing ↗ |
| Material agreement (1.01) | Apr 1, 2026 | filing ↗ |
| New financial obligation (2.03) | Apr 1, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 1, 2026 | filing ↗ |
| Material agreement (1.01) | Mar 3, 2026 | filing ↗ |
| Other events (8.01) | Mar 3, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 3, 2026 | filing ↗ |
| Earnings (2.02) | Feb 24, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 24, 2026 | filing ↗ |
| Officer/director changes (5.02) | Feb 24, 2026 | filing ↗ |
| Other events (8.01) | Feb 24, 2026 | filing ↗ |