{"transactions":[{"id":725821,"issuer":{"id":3990,"kind":"organization","name":"TREX CO INC","symbol":"TREX"},"owners":[{"id":35261,"kind":"person","name":"Rudolph Jacob T.","position":1,"cik":"0002013330","reported_name":"Rudolph Jacob T.","relationship":{"officer":true,"officer_title":"SVP, CHRO"}}],"security":"Common Stock","published_at":"2026-06-26T18:18:30.000Z","date":"2026-06-25","kind":"sale","planned":true,"acquired":false,"shares":1400,"price":50,"value":70000.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."}],"balance_after":36631,"source":{"system":"sec-edgar","filing":"0001069878-26-000042","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069878/000106987826000042/form4.xml","form_type":"4"}},{"id":870069,"issuer":{"id":3990,"kind":"organization","name":"TREX CO INC","symbol":"TREX"},"owners":[{"id":35261,"kind":"person","name":"Rudolph Jacob T.","position":1,"cik":"0002013330","reported_name":"Rudolph Jacob T.","relationship":{"officer":true,"officer_title":"SVP, CHRO"}}],"security":"Common Stock","published_at":"2026-03-03T23:42:52.000Z","date":"2026-03-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":2850,"price":41.42,"value":118047.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"2,850 shares are being surrendered as allowed by the Company's 2023 Stock Incentive Plan to cover payment of taxes currently due on previously granted restricted stock units."}],"balance_after":38031,"source":{"system":"sec-edgar","filing":"0001069878-26-000032","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1069878/000106987826000032/form4.xml","form_type":"4"}},{"id":870068,"issuer":{"id":3990,"kind":"organization","name":"TREX CO INC","symbol":"TREX"},"owners":[{"id":35261,"kind":"person","name":"Rudolph Jacob T.","position":1,"cik":"0002013330","reported_name":"Rudolph Jacob T.","relationship":{"officer":true,"officer_title":"SVP, CHRO"}}],"security":"Common Stock","published_at":"2026-03-03T23:42:52.000Z","date":"2026-03-01","kind":"other","planned":false,"acquired":false,"shares":663,"price":41.42,"value":27461.46,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Represents the target number of performance-based restricted units which did not vest due to the performance condition not being satisfied."}],"balance_after":40881,"source":{"system":"sec-edgar","filing":"0001069878-26-000032","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1069878/000106987826000032/form4.xml","form_type":"4"}},{"id":870067,"issuer":{"id":3990,"kind":"organization","name":"TREX CO INC","symbol":"TREX"},"owners":[{"id":35261,"kind":"person","name":"Rudolph Jacob T.","position":1,"cik":"0002013330","reported_name":"Rudolph Jacob T.","relationship":{"officer":true,"officer_title":"SVP, CHRO"}}],"security":"Common Stock","published_at":"2026-03-03T23:42:52.000Z","date":"2026-03-01","kind":"grant","planned":false,"acquired":true,"shares":1250,"price":41.42,"value":51775.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents net share difference between target performance-based shares and actual vested shares, based upon actual performance of the Company."}],"balance_after":41544,"source":{"system":"sec-edgar","filing":"0001069878-26-000032","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069878/000106987826000032/form4.xml","form_type":"4"}},{"id":882483,"issuer":{"id":3990,"kind":"organization","name":"TREX CO INC","symbol":"TREX"},"owners":[{"id":35261,"kind":"person","name":"Rudolph Jacob T.","position":1,"cik":"0002013330","reported_name":"Rudolph Jacob T.","relationship":{"officer":true,"officer_title":"SVP, CHRO"}}],"security":"Common Stock","published_at":"2026-02-26T02:07:04.000Z","date":"2026-02-24","kind":"grant","planned":false,"acquired":true,"shares":6321,"price":41.45,"value":262005.45,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"This restricted stock unit award is performance-based, and vests over a three-year period in three equal installments occurring March 1, 2027, March 1, 2028, and March 1, 2029. The number of shares set forth above is the target number of shares. The number of shares that will actually vest each year will be based upon performance against certain financial goals for the Company and will range from 0% to 200% of the target number of shares."}],"balance_after":40294,"source":{"system":"sec-edgar","filing":"0001069878-26-000022","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1069878/000106987826000022/form4.xml","form_type":"4"}},{"id":882482,"issuer":{"id":3990,"kind":"organization","name":"TREX CO INC","symbol":"TREX"},"owners":[{"id":35261,"kind":"person","name":"Rudolph Jacob T.","position":1,"cik":"0002013330","reported_name":"Rudolph Jacob T.","relationship":{"officer":true,"officer_title":"SVP, CHRO"}}],"security":"Common Stock","published_at":"2026-02-26T02:07:04.000Z","date":"2026-02-24","kind":"grant","planned":false,"acquired":true,"shares":6321,"price":41.45,"value":262005.45,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This restricted stock unit award vests over a three-year period in three equal annual installments occurring March 1, 2027, March 1, 2028, and March 1, 2029."}],"balance_after":33973,"source":{"system":"sec-edgar","filing":"0001069878-26-000022","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069878/000106987826000022/form4.xml","form_type":"4"}},{"id":1019593,"issuer":{"id":3990,"kind":"organization","name":"TREX CO INC","symbol":"TREX"},"owners":[{"id":35261,"kind":"person","name":"Rudolph Jacob T.","position":1,"cik":"0002013330","reported_name":"Rudolph Jacob T.","relationship":{"officer":true,"officer_title":"SVP, CHRO"}}],"security":"Common Stock","published_at":"2025-10-14T16:54:39.000Z","date":"2025-10-10","kind":"purchase","planned":false,"acquired":true,"shares":59,"price":43.92,"value":2591.28,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares were purchased through the Trex Company, Inc. Amended and Restated 1999 Employee Stock Purchase Plan"}],"balance_after":27652,"source":{"system":"sec-edgar","filing":"0001069878-25-000014","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069878/000106987825000014/form4.xml","form_type":"4"}},{"id":1091479,"issuer":{"id":3990,"kind":"organization","name":"TREX CO INC","symbol":"TREX"},"owners":[{"id":35261,"kind":"person","name":"Rudolph Jacob T.","position":1,"cik":"0002013330","reported_name":"Rudolph Jacob T.","relationship":{"officer":true,"officer_title":"SVP, CHRO"}}],"security":"Common Stock","published_at":"2025-07-07T15:38:29.000Z","date":"2025-07-03","kind":"purchase","planned":false,"acquired":true,"shares":66,"price":46.22,"value":3050.52,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares were purchased through the Trex Company, Inc. Amended and Restated 1999 Employee Stock Purchase Plan"}],"balance_after":27593,"source":{"system":"sec-edgar","filing":"0001127602-25-018955","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069878/000112760225018955/form4.xml","form_type":"4"}},{"id":1146031,"issuer":{"id":3990,"kind":"organization","name":"TREX CO INC","symbol":"TREX"},"owners":[{"id":35261,"kind":"person","name":"Rudolph Jacob T.","position":1,"cik":"0002013330","reported_name":"Rudolph Jacob T.","relationship":{"officer":true,"officer_title":"SVP, CHRO"}}],"security":"Common Stock","published_at":"2025-05-16T15:34:10.000Z","date":"2025-05-15","kind":"sale","planned":false,"acquired":false,"shares":1500,"price":60.2733,"value":90409.95,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $60.19 to $60.32, inclusive."}],"balance_after":27527,"source":{"system":"sec-edgar","filing":"0001127602-25-014593","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069878/000112760225014593/form4.xml","form_type":"4"}},{"id":1174301,"issuer":{"id":3990,"kind":"organization","name":"TREX CO INC","symbol":"TREX"},"owners":[{"id":35261,"kind":"person","name":"Rudolph Jacob T.","position":1,"cik":"0002013330","reported_name":"Rudolph Jacob T.","relationship":{"officer":true,"officer_title":"SVP, CHRO"}}],"security":"Common Stock","published_at":"2025-04-10T17:47:07.000Z","date":"2025-04-08","kind":"purchase","planned":false,"acquired":true,"shares":53,"price":49.39,"value":2617.67,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares were purchased through the Trex Company, Inc. Amended and Restated 1999 Employee Stock Purchase Plan"}],"balance_after":29027,"source":{"system":"sec-edgar","filing":"0001127602-25-011885","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069878/000112760225011885/form4.xml","form_type":"4"}},{"id":1231272,"issuer":{"id":3990,"kind":"organization","name":"TREX CO INC","symbol":"TREX"},"owners":[{"id":35261,"kind":"person","name":"Rudolph Jacob T.","position":1,"cik":"0002013330","reported_name":"Rudolph Jacob T.","relationship":{"officer":true,"officer_title":"SVP, CHRO"}}],"security":"Common Stock","published_at":"2025-03-04T19:51:26.000Z","date":"2025-03-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":2458,"price":61.69,"value":151634.02,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"2,458 shares are being surrendered as allowed by the Company's 2023 Stock Incentive Plan to cover payment of taxes currently due on previously granted restricted stock units."}],"balance_after":28974,"source":{"system":"sec-edgar","filing":"0001127602-25-007756","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1069878/000112760225007756/form4.xml","form_type":"4"}},{"id":1231271,"issuer":{"id":3990,"kind":"organization","name":"TREX CO INC","symbol":"TREX"},"owners":[{"id":35261,"kind":"person","name":"Rudolph Jacob T.","position":1,"cik":"0002013330","reported_name":"Rudolph Jacob T.","relationship":{"officer":true,"officer_title":"SVP, CHRO"}}],"security":"Common Stock","published_at":"2025-03-04T19:51:26.000Z","date":"2025-03-01","kind":"grant","planned":false,"acquired":true,"shares":1306,"price":61.69,"value":80567.14,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Represents net share difference between target performance-based shares and actual vested shares, based upon actual performance of the Company."}],"balance_after":31432,"source":{"system":"sec-edgar","filing":"0001127602-25-007756","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1069878/000112760225007756/form4.xml","form_type":"4"}},{"id":1231270,"issuer":{"id":3990,"kind":"organization","name":"TREX CO INC","symbol":"TREX"},"owners":[{"id":35261,"kind":"person","name":"Rudolph Jacob T.","position":1,"cik":"0002013330","reported_name":"Rudolph Jacob T.","relationship":{"officer":true,"officer_title":"SVP, CHRO"}}],"security":"Common Stock","published_at":"2025-03-04T19:51:26.000Z","date":"2025-03-01","kind":"other","planned":false,"acquired":false,"shares":772,"price":61.69,"value":47624.68,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents the target number of performance-based restricted units which did not vest due to the performance condition not being satisfied."}],"balance_after":30126,"source":{"system":"sec-edgar","filing":"0001127602-25-007756","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069878/000112760225007756/form4.xml","form_type":"4"}},{"id":1261570,"issuer":{"id":3990,"kind":"organization","name":"TREX CO INC","symbol":"TREX"},"owners":[{"id":35261,"kind":"person","name":"Rudolph Jacob T.","position":1,"cik":"0002013330","reported_name":"Rudolph Jacob T.","relationship":{"officer":true,"officer_title":"SVP, CHRO"}}],"security":"Stock Appreciation Right","published_at":"2025-02-19T13:29:42.000Z","date":"2025-02-17","kind":"grant","planned":false,"acquired":true,"shares":2266,"price":67.33,"value":152569.78,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"The stock appreciation right becomes exercisable in three equal installments occurring March 1, 2026, March 1, 2027 and March 1, 2028."}],"balance_after":20218,"derivative":{"exercise_price":67.33,"exercise_date":"2026-03-01","expiration_date":"2035-02-17","underlying":"Common Stock","underlying_shares":2266},"source":{"system":"sec-edgar","filing":"0001127602-25-005341","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1069878/000112760225005341/form4.xml","form_type":"4"}},{"id":1261569,"issuer":{"id":3990,"kind":"organization","name":"TREX CO INC","symbol":"TREX"},"owners":[{"id":35261,"kind":"person","name":"Rudolph Jacob T.","position":1,"cik":"0002013330","reported_name":"Rudolph Jacob T.","relationship":{"officer":true,"officer_title":"SVP, CHRO"}}],"security":"Common Stock","published_at":"2025-02-19T13:29:42.000Z","date":"2025-02-17","kind":"grant","planned":false,"acquired":true,"shares":3758,"price":67.33,"value":253026.14,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"This restricted stock unit award is performance-based, and vests over a three-year period in three equal installments occurring March 1, 2026, March 1, 2027 and March 1, 2028. The number of shares set forth above is the target number of shares. The number of shares that will actually vest each year will be based upon performance against certain financial goals for the Company, and will range from 0% to 200% of the target number of shares."}],"balance_after":30898,"source":{"system":"sec-edgar","filing":"0001127602-25-005341","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1069878/000112760225005341/form4.xml","form_type":"4"}},{"id":1261568,"issuer":{"id":3990,"kind":"organization","name":"TREX CO INC","symbol":"TREX"},"owners":[{"id":35261,"kind":"person","name":"Rudolph Jacob T.","position":1,"cik":"0002013330","reported_name":"Rudolph Jacob T.","relationship":{"officer":true,"officer_title":"SVP, CHRO"}}],"security":"Common Stock","published_at":"2025-02-19T13:29:42.000Z","date":"2025-02-17","kind":"grant","planned":false,"acquired":true,"shares":2630,"price":67.33,"value":177077.9,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This restricted stock unit award vests over a three-year period in three equal annual installments occurring March 1, 2026, March 1, 2027 and March 1, 2028."}],"balance_after":27140,"source":{"system":"sec-edgar","filing":"0001127602-25-005341","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069878/000112760225005341/form4.xml","form_type":"4"}},{"id":1293364,"issuer":{"id":3990,"kind":"organization","name":"TREX CO INC","symbol":"TREX"},"owners":[{"id":35261,"kind":"person","name":"Rudolph Jacob T.","position":1,"cik":"0002013330","reported_name":"Rudolph Jacob T.","relationship":{"officer":true,"officer_title":"SVP, CHRO"}}],"security":"Common Stock","published_at":"2025-01-29T00:45:39.000Z","date":"2025-01-27","kind":"purchase","planned":false,"acquired":true,"shares":49,"price":57.58,"value":2821.42,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares were purchased through the Trex Company, Inc. Amended and Restated 1999 Employee Stock Purchase Plan."}],"balance_after":24510,"source":{"system":"sec-edgar","filing":"0001127602-25-002163","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069878/000112760225002163/form4.xml","form_type":"4"}},{"id":1353127,"issuer":{"id":3990,"kind":"organization","name":"TREX CO INC","symbol":"TREX"},"owners":[{"id":35261,"kind":"person","name":"Rudolph Jacob T.","position":1,"cik":"0002013330","reported_name":"Rudolph Jacob T.","relationship":{"officer":true,"officer_title":"SVP, CHRO"}}],"security":"Common Stock","published_at":"2024-11-25T22:08:50.000Z","date":"2024-11-25","kind":"sale","planned":false,"acquired":false,"shares":1372,"price":78.08,"value":107125.76,"ownership":{"direct":true},"balance_after":24461,"source":{"system":"sec-edgar","filing":"0001127602-24-027990","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069878/000112760224027990/form4.xml","form_type":"4"}},{"id":1391006,"issuer":{"id":3990,"kind":"organization","name":"TREX CO INC","symbol":"TREX"},"owners":[{"id":35261,"kind":"person","name":"Rudolph Jacob T.","position":1,"cik":"0002013330","reported_name":"Rudolph Jacob T.","relationship":{"officer":true,"officer_title":"SVP, CHRO"}}],"security":"Common Stock","published_at":"2024-10-04T17:54:57.000Z","date":"2024-10-03","kind":"purchase","planned":false,"acquired":true,"shares":43,"price":56.59,"value":2433.37,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares were purchased through the Trex Company, Inc. Amended and Restated 1999 Employee Stock Purchase Plan."}],"balance_after":25833,"source":{"system":"sec-edgar","filing":"0001127602-24-025239","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069878/000112760224025239/form4.xml","form_type":"4"}},{"id":1458456,"issuer":{"id":3990,"kind":"organization","name":"TREX CO INC","symbol":"TREX"},"owners":[{"id":35261,"kind":"person","name":"Rudolph Jacob T.","position":1,"cik":"0002013330","reported_name":"Rudolph Jacob T.","relationship":{"officer":true,"officer_title":"SVP, CHRO"}}],"security":"Common Stock","published_at":"2024-07-08T16:10:33.000Z","date":"2024-07-03","kind":"purchase","planned":false,"acquired":true,"shares":44,"price":63,"value":2772.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares were purchased through the Trex Company, Inc. Amended and Restated 1999 Employee Stock Purchase Plan."}],"balance_after":25790,"source":{"system":"sec-edgar","filing":"0001127602-24-020180","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069878/000112760224020180/form4.xml","form_type":"4"}},{"id":1512251,"issuer":{"id":3990,"kind":"organization","name":"TREX CO INC","symbol":"TREX"},"owners":[{"id":35261,"kind":"person","name":"Rudolph Jacob T.","position":1,"cik":"0002013330","reported_name":"Rudolph Jacob T.","relationship":{"officer":true,"officer_title":"SVP, CHRO"}}],"security":"Common Stock","published_at":"2024-05-17T18:20:37.000Z","date":"2024-05-15","kind":"sale","planned":false,"acquired":false,"shares":16440,"price":90.9046,"value":1494471.624,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $90.70 to $91.15, inclusive."}],"balance_after":25746,"source":{"system":"sec-edgar","filing":"0001127602-24-015794","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069878/000112760224015794/form4.xml","form_type":"4"}},{"id":1547139,"issuer":{"id":3990,"kind":"organization","name":"TREX CO INC","symbol":"TREX"},"owners":[{"id":35261,"kind":"person","name":"Rudolph Jacob T.","position":1,"cik":"0002013330","reported_name":"Rudolph Jacob T.","relationship":{"officer":true,"officer_title":"SVP, CHRO"}}],"security":"Common Stock","published_at":"2024-04-05T19:31:44.000Z","date":"2024-04-04","kind":"purchase","planned":false,"acquired":true,"shares":35,"price":70.37,"value":2462.95,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Shares were purchased through the Trex Company, Inc. Amended and Restated 1999 Employee Stock Purchase Plan."}],"balance_after":42186,"source":{"system":"sec-edgar","filing":"0001127602-24-012537","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069878/000112760224012537/form4.xml","form_type":"4"}},{"id":1604269,"issuer":{"id":3990,"kind":"organization","name":"TREX CO INC","symbol":"TREX"},"owners":[{"id":35261,"kind":"person","name":"Rudolph Jacob T.","position":1,"cik":"0002013330","reported_name":"Rudolph Jacob T.","relationship":{"officer":true,"officer_title":"SVP, CHRO"}}],"security":"Common Stock","published_at":"2024-03-04T19:55:29.000Z","date":"2024-03-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":1767,"price":94.61,"value":167175.87,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"1,767 shares are being surrendered as allowed by the Company's 2023 Stock Incentive Plan to cover payment of taxes currently due on previously granted restricted stock units."}],"balance_after":42151,"source":{"system":"sec-edgar","filing":"0001127602-24-008057","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1069878/000112760224008057/form4.xml","form_type":"4"}},{"id":1604268,"issuer":{"id":3990,"kind":"organization","name":"TREX CO INC","symbol":"TREX"},"owners":[{"id":35261,"kind":"person","name":"Rudolph Jacob T.","position":1,"cik":"0002013330","reported_name":"Rudolph Jacob T.","relationship":{"officer":true,"officer_title":"SVP, CHRO"}}],"security":"Common Stock","published_at":"2024-03-04T19:55:29.000Z","date":"2024-03-01","kind":"grant","planned":false,"acquired":true,"shares":1250,"price":94.61,"value":118262.5,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Represents net share difference between target performance-based shares and actual vested shares, based upon actual performance for the Company."}],"balance_after":43918,"source":{"system":"sec-edgar","filing":"0001127602-24-008057","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1069878/000112760224008057/form4.xml","form_type":"4"}},{"id":1604267,"issuer":{"id":3990,"kind":"organization","name":"TREX CO INC","symbol":"TREX"},"owners":[{"id":35261,"kind":"person","name":"Rudolph Jacob T.","position":1,"cik":"0002013330","reported_name":"Rudolph Jacob T.","relationship":{"officer":true,"officer_title":"SVP, CHRO"}}],"security":"Common Stock","published_at":"2024-03-04T19:55:29.000Z","date":"2024-03-01","kind":"other","planned":false,"acquired":false,"shares":771,"price":94.61,"value":72944.31,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents the target number of performance-based restricted units which did not vest due to the performance condition not being satisfied."}],"balance_after":42668,"source":{"system":"sec-edgar","filing":"0001127602-24-008057","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1069878/000112760224008057/form4.xml","form_type":"4"}}]}