Adam Dante Zambanini is President & VP at TREX CO INC (TREX). They have made 8 open-market trades across 1 company since 2012, most recently 2026-03-01.
CIK 0001512909
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 8 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| TREX | 234,514 | $13.4M |
Shares reported on the most recent Form 4, priced at the 2026-03-03 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| TREX | SELL | 2021-11-11 | 2021-11-12 | $127.89 | $526K | +1.8% | +5.6% | -33.6% |
| TREX | SELL | 2021-08-06 | 2021-08-06 | $104.77 | $1.5M | -1.9% | +5.6% | +7.8% |
| TREX | SELL | 2020-02-26 | 2020-02-27 | $96.37 | $606K | -2.3% | -10.5% | +32.1% |
| TREX | SELL | 2019-10-31 | 2019-11-01 | $84.20 | $732K | -1.1% | -6.1% | +9.0% |
| TREX | SELL | 2016-09-07 | 2016-09-07 | $61.61 | $353K | -7.7% | -2.9% | +10.8% |
| TREX | SELL | 2016-09-07 | 2016-09-07 | $61.61 | $706K | -7.7% | -2.9% | +10.8% |
| TREX | SELL · 10b5-1 | 2015-08-12 | 2015-08-13 | $40.89 | $149K | -10.4% | -2.8% | -2.8% |
| TREX | SELL · 10b5-1 | 2015-05-13 | 2015-05-14 | $48.82 | $148K | -10.4% | -2.8% | -2.8% |
| TREX | SELL | 2012-11-09 | 2012-11-09 | $38.60 | $58K | -10.4% | -2.8% | -2.8% |
| TREX | SELL | 2012-08-21 | 2012-08-22 | $29.14 | $62K | -10.4% | -2.8% | -2.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.