SEC Form 4
Trex Company, Inc. (TREX) insider trading
In the 12 months to Oct 23, 2026, 2 TREX insiders reported open-market sales of $122.6K across 2 filings; 2 insiders bought $982.4K.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $122.6K
- 2 filings · 2 insiders
- Open-market purchases
- $982.4K
- 2 filings
- Pre-arranged sales (10b5-1)
- 1 of 2
- $70.0K of $122.6K sold (57%)
Who traded TREX, and when
- Purchase
- Sale
- Sale, pre-arranged (10b5-1)
TREX daily close from Oct 23, 2025 to Oct 23, 2026, between $30.13 and $51.07, last $50.38. 2 sale and 2 purchase filings by 4 insiders, marked at their filing dates. B. Andrew Rose, Director: bought $503.6K across 1 filing, first filed Mar 3, 2026, last Mar 3, 2026. Prithvi Gandhi, SVP, Chief Financial Officer: bought $478.8K across 1 filing, first filed Nov 17, 2025, last Nov 17, 2025. Jacob T. Rudolph, SVP, CHRO: sold $70.0K across 1 filing, first filed Jun 26, 2026, last Jun 26, 2026. Amy M. Fernandez, SVP, CLO and Secretary: sold $52.6K across 1 filing, first filed Aug 11, 2026, last Aug 11, 2026.
Largest mark · tap a row for others
B. Andrew Rose · Director
Purchase $503,560
12,380 shares at $40.68 avg
Filed Mar 3, 2026 · traded Mar 2
Close on filing date $40.16
B. Andrew Rose · Director
Director
$503.6K boughtPrithvi Gandhi · SVP, Chief Financial Officer
SVP, Chief Financial Officer
$478.8K boughtJacob T. Rudolph · SVP, CHRO
SVP, CHRO
$70.0K soldAmy M. Fernandez · SVP, CLO and Secretary
SVP, CLO and Secretary
$52.6K soldHas Trex Company, Inc.'s CEO sold stock?
No. Bryan Horix Fairbanks (CEO) made no open-market sales filed as CEO in the last 12 months.
Open-market trades
4 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| B. Andrew Rose | Director | — | $503.6K | 1 | — | |
| Prithvi Gandhi | SVP, Chief Financial Officer | — | $478.8K | 1 | — | |
| Jacob T. Rudolph | SVP, CHRO | $70.0K | — | 1 | 100% of sales | |
| Amy M. Fernandez | SVP, CLO and Secretary | $52.6K | — | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Amy M. Fernandez SVP, CLO and Secretary | Sale | 1,050 | $50.07 | $52.6K | 67,794 | |
traded | Jacob T. Rudolph SVP, CHRO | SalePre-arranged (10b5-1) | 1,400 | $50.00 | $70.0K | 36,631 | |
traded | B. Andrew Rose Director | Purchase | 12,380 | $40.68 | $503.6K | 14,183 | |
traded | Prithvi Gandhi SVP, Chief Financial Officer | Purchase | 15,000 | $31.92 | $478.8K | 30,664 |
GET /stocks/filings/vX/form-4?tickers=TREX&filing_date.gte=2025-10-23&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"TREX"
],
"issuer_cik": "0001069878",
"owner_cik": "0001987902",
"accession_number": "0001069878-26-000075",
"form_type": "4",
"filing_date": "2026-08-11",
"period_of_report": "2026-08-07",
"issuer_name": "TREX CO INC",
"issuer_trading_symbol": "TREX",
"owner_name": "Fernandez Amy M.",
"is_officer": true,
"officer_title": "SVP, CLO and Secretary",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-08-07",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 1050,
"transaction_price_per_share": 50.0689,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 67794,
"transaction_value": 52572.345,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $49.97 to $50.11, inclusive. The reporting person undertakes to provide to Issuer, any security holder of Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4."
}
]
},
{
"tickers": [
"TREX"
],
"issuer_cik": "0001069878",
"owner_cik": "0002013330",
"accession_number": "0001069878-26-000042",
"form_type": "4",
"filing_date": "2026-06-26",
"period_of_report": "2026-06-25",
"issuer_name": "TREX CO INC",
"issuer_trading_symbol": "TREX",
"owner_name": "Rudolph Jacob T.",
"is_officer": true,
"officer_title": "SVP, CHRO",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-06-25",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 1400,
"transaction_price_per_share": 50,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 36631,
"transaction_value": 70000,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The reported transaction was effected pursuant to a plan adopted by the reporting person on March 5, 2026, in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934 (the \"10b5-1 Plan\"). The 10b5-1 Plan provides for automatic sales of shares according to pre-established instructions. The reporting person sold 1,400 shares in a single trade at a price of $50.00 per share. All 1,400 shares under the 10b5-1 Plan have been sold."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 43 records
- Tax withholding4 records
- Grants and awards35 records
- Other4 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
Build this yourself
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for TREX every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Pre-arranged (10b5-1)
- The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.