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Gupp William R.

Disclosed activity across 1 company

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113942
SEC CIK
0001428106

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
TREX CO INCTREX · Entity 3990Sr VP, CLO & SecretaryMay 02, 2023May 03, 2023

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

TREX CO INC

Report date May 02, 2023 · Filed May 03, 2023

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect106,974 Reported balance After 2023-05-02 transaction · row 1
1 source row

Row 1 · 2023-05-02 · Tax withholding · Disposed 9,861 · Balance 106,974

F1: 9861 shares are being surrendered as allowed by the Company's 2014 Stock Incentive Plan to cover payment of taxes currently due on previously granted restricted stock units.

Filing footnotes · ownership attribution and instrument terms

F1: 9861 shares are being surrendered as allowed by the Company's 2014 Stock Incentive Plan to cover payment of taxes currently due on previously granted restricted stock units.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
May 02, 2023 Filed May 3, 2023 16:44 UTC TREX CO INC TREX · Entity 3990 Tax withholdingCommon Stock 9,861 $54.56 $538,016.16
Disclosure

SEC source: 0001127602-23-014192 · form4.xml · nonDerivative · entry 1

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 106,974

F1 · kind: 9861 shares are being surrendered as allowed by the Company's 2014 Stock Incentive Plan to cover payment of taxes currently due on previously granted restricted stock units.

Read SEC document
March 01, 2023 Filed Mar 3, 2023 17:07 UTC Amendment TREX CO INC TREX · Entity 3990 OtherCommon Stock 1,279 $50.40 $64,461.60
Disclosure

SEC source: 0001127602-23-008597 · form4a.xml · nonDerivative · entry 2

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 116,835

F3 · kind: Represents the target number of performance-based restricted units which did not vest due to the performance condition not being satisfied.

F4 · price: This amendment is filed to reflect that the share price on March 1, 2023 was $50.40. The original filing erroneously reflected a share price of $40.50.

Read SEC document
March 01, 2023 Filed Mar 3, 2023 17:07 UTC Amendment TREX CO INC TREX · Entity 3990 Tax withholdingCommon Stock 405 $50.40 $20,412.00
Disclosure

SEC source: 0001127602-23-008597 · form4a.xml · nonDerivative · entry 1

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 118,114

F1 · kind: 405 shares are being surrendered as allowed by the Company's 2014 Stock Incentive Plan to cover payment of taxes currently due on previously granted restricted stock units.

F2 · price: This amendment is filed to reflect that the share price on March 1, 2023 was $50.40. The original filing erroneously reflected a share price of $40.50.

Read SEC document
March 01, 2023 Filed Mar 3, 2023 15:29 UTC TREX CO INC TREX · Entity 3990 OtherCommon Stock 1,279 $40.50 $51,799.50
Disclosure

SEC source: 0001127602-23-008551 · form4.xml · nonDerivative · entry 2

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 116,835

F2 · kind: Represents the target number of performance-based restricted units which did not vest due to the performance condition not being satisfied.

Read SEC document
March 01, 2023 Filed Mar 3, 2023 15:29 UTC TREX CO INC TREX · Entity 3990 Tax withholdingCommon Stock 405 $40.50 $16,402.50
Disclosure

SEC source: 0001127602-23-008551 · form4.xml · nonDerivative · entry 1

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 118,114

F1 · kind: 405 shares are being surrendered as allowed by the Company's 2014 Stock Incentive Plan to cover payment of taxes currently due on previously granted restricted stock units.

Read SEC document
February 19, 2023 Filed Feb 21, 2023 15:39 UTC TREX CO INC TREX · Entity 3990 Tax withholdingCommon Stock 560 $53.79 $30,122.40
Disclosure

SEC source: 0001127602-23-006129 · form4.xml · nonDerivative · entry 2

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 118,519

F2 · kind: 560 shares are being surrendered as allowed by the Company's 2014 Stock Incentive Plan to cover payment of taxes currently due on previously granted restricted stock units.

Read SEC document
February 17, 2023 Filed Feb 21, 2023 15:39 UTC TREX CO INC TREX · Entity 3990 Tax withholdingCommon Stock 285 $53.79 $15,330.15
Disclosure

SEC source: 0001127602-23-006129 · form4.xml · nonDerivative · entry 1

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 119,079

F1 · kind: 285 shares are being surrendered as allowed by the Company's 2014 Stock Incentive Plan to cover payment of taxes currently due on previously granted restricted stock units.

Read SEC document
February 14, 2023 Filed Feb 16, 2023 15:44 UTC TREX CO INC TREX · Entity 3990 GrantStock Appreciation Right · Derivative 3,840 $56.80 Strike: $56.80 $218,112.00
Disclosure

SEC source: 0001127602-23-005460 · form4.xml · derivative · entry 5

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,840

Underlying: Common Stock · 3,840 shares

Expires 2033-02-14

F5 · kind: The stock appreciation right becomes exercisable in three equal installments occurring March 1,2024, March 1, 2025 and March 1, 2026.

Read SEC document
February 14, 2023 Filed Feb 16, 2023 15:44 UTC TREX CO INC TREX · Entity 3990 Tax withholdingCommon Stock 1,960 $56.80 $111,328.00
Disclosure

SEC source: 0001127602-23-005460 · form4.xml · nonDerivative · entry 4

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 119,364

F4 · kind: 1,960 shares are being surrendered as allowed by the Company's 2014 Stock Incentive Plan to cover payment of taxes currently due on previously granted restricted stock units.

Read SEC document
February 14, 2023 Filed Feb 16, 2023 15:44 UTC TREX CO INC TREX · Entity 3990 GrantCommon Stock 1,673 $56.80 $95,026.40
Disclosure

SEC source: 0001127602-23-005460 · form4.xml · nonDerivative · entry 3

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 121,324

F3 · kind: Represents net share difference between target performance-based shares and actual vested shares, based upon actual performance for the Company.

Read SEC document
February 14, 2023 Filed Feb 16, 2023 15:44 UTC TREX CO INC TREX · Entity 3990 GrantCommon Stock 6,127 $56.80 $348,013.60
Disclosure

SEC source: 0001127602-23-005460 · form4.xml · nonDerivative · entry 2

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 119,651

F2 · kind: This restricted stock unit award is performance-based, and vests over a three-year period in three equal installments occurring March 1,2024, March 1, 2025 and March 1, 2026. 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.

Read SEC document
February 14, 2023 Filed Feb 16, 2023 15:44 UTC TREX CO INC TREX · Entity 3990 GrantCommon Stock 4,289 $56.80 $243,615.20
Disclosure

SEC source: 0001127602-23-005460 · form4.xml · nonDerivative · entry 1

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 113,524

F1 · kind: This restricted stock unit vests over a three-year period in three equal annual installments occurring March 1,2024, March 1, 2025 and March 1, 2026.

Read SEC document
February 08, 2023 Filed Feb 10, 2023 18:27 UTC TREX CO INC TREX · Entity 3990 Exercise / conversionStock Appreciation Right · Derivative 2,213 $0.00 Strike: $5.49 $0.00
Disclosure

SEC source: 0001127602-23-004328 · form4.xml · derivative · entry 4

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,213 shares

Expires 2023-02-12

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
February 08, 2023 Filed Feb 10, 2023 18:27 UTC TREX CO INC TREX · Entity 3990 Tax withholdingCommon Stock 899 $55.12 $49,552.88
Disclosure

SEC source: 0001127602-23-004328 · form4.xml · nonDerivative · entry 3

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 109,235

F1 · kind: 899 shares are being surrendered as allowed by the Company's 2005 Stock Incentive Plan to cover payment of taxes currently due on previously granted restricted shares.

Read SEC document
February 08, 2023 Filed Feb 10, 2023 18:27 UTC TREX CO INC TREX · Entity 3990 Disposition to issuerCommon Stock 220 $55.12 $12,126.40
Disclosure

SEC source: 0001127602-23-004328 · form4.xml · nonDerivative · entry 2

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 110,134

Read SEC document
February 08, 2023 Filed Feb 10, 2023 18:27 UTC TREX CO INC TREX · Entity 3990 Exercise / conversionCommon Stock 2,213 $5.49 $12,149.37
Disclosure

SEC source: 0001127602-23-004328 · form4.xml · nonDerivative · entry 1

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 110,354

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
January 31, 2023 Filed Feb 2, 2023 19:54 UTC TREX CO INC TREX · Entity 3990 Exercise / conversionStock Appreciation Right · Derivative 2,214 $0.00 Strike: $5.49 $0.00
Disclosure

SEC source: 0001127602-23-003065 · form4.xml · derivative · entry 4

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,213

Underlying: Common Stock · 2,214 shares

Expires 2023-02-12

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Stock Appreciation Rights (SARs) are being exercised in accordance with the 2005 Stock Incentive Plan.

Read SEC document
January 31, 2023 Filed Feb 2, 2023 19:54 UTC TREX CO INC TREX · Entity 3990 Tax withholdingCommon Stock 934 $52.72 $49,240.48
Disclosure

SEC source: 0001127602-23-003065 · form4.xml · nonDerivative · entry 3

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 108,141

F2 · kind: 934 shares are being surrendered as allowed by the Company's 2005 Stock Incentive Plan to cover payment of taxes currently due on previously granted restricted shares.

Read SEC document
January 31, 2023 Filed Feb 2, 2023 19:54 UTC TREX CO INC TREX · Entity 3990 Disposition to issuerCommon Stock 231 $52.72 $12,178.32
Disclosure

SEC source: 0001127602-23-003065 · form4.xml · nonDerivative · entry 2

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 109,075

Read SEC document
January 31, 2023 Filed Feb 2, 2023 19:54 UTC TREX CO INC TREX · Entity 3990 Exercise / conversionCommon Stock 2,214 $5.49 $12,154.86
Disclosure

SEC source: 0001127602-23-003065 · form4.xml · nonDerivative · entry 1

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 109,306

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Stock Appreciation Rights (SARs) are being exercised in accordance with the 2005 Stock Incentive Plan.

Read SEC document
January 18, 2023 Filed Jan 20, 2023 16:38 UTC TREX CO INC TREX · Entity 3990 Exercise / conversionStock Appreciation Right · Derivative 2,213 $0.00 Strike: $5.49 $0.00
Disclosure

SEC source: 0001127602-23-001887 · form4.xml · derivative · entry 4

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,427

Underlying: Common Stock · 2,213 shares

Expires 2023-02-12

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
January 18, 2023 Filed Jan 20, 2023 16:38 UTC TREX CO INC TREX · Entity 3990 Tax withholdingCommon Stock 996 $50.72 $50,517.12
Disclosure

SEC source: 0001127602-23-001887 · form4.xml · nonDerivative · entry 3

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 107,092

F2 · kind: 996 shares are being surrendered as allowed by the Company's 2005 Stock Incentive Plan to cover payment of taxes currently due on previously granted restricted shares.

Read SEC document
January 18, 2023 Filed Jan 20, 2023 16:38 UTC TREX CO INC TREX · Entity 3990 Disposition to issuerCommon Stock 239 $50.72 $12,122.08
Disclosure

SEC source: 0001127602-23-001887 · form4.xml · nonDerivative · entry 2

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 108,088

Read SEC document
January 18, 2023 Filed Jan 20, 2023 16:38 UTC TREX CO INC TREX · Entity 3990 Exercise / conversionCommon Stock 2,213 $5.49 $12,149.37
Disclosure

SEC source: 0001127602-23-001887 · form4.xml · nonDerivative · entry 1

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 108,327

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Stock Appreciation Rights (SARs) are being exercised in accordance with the 2005 Stock Incentive Plan.

Read SEC document
February 23, 2022 Filed Feb 25, 2022 13:36 UTC TREX CO INC TREX · Entity 3990 GrantStock Appreciation Right · Derivative 2,785 $82.01 Strike: $82.01 $228,397.85
Disclosure

SEC source: 0001127602-22-006735 · form4.xml · derivative · entry 5

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,785

Underlying: Common Stock · 2,785 shares

Expires 2032-02-23

F3 · kind: The stock appreciation right becomes exercisable in three equal installments occurring March 1,2023, March 1, 2024 and March 1, 2025.

Read SEC document
February 23, 2022 Filed Feb 25, 2022 13:36 UTC TREX CO INC TREX · Entity 3990 Tax withholdingCommon Stock 3,951 $82.01 $324,021.51
Disclosure

SEC source: 0001127602-22-006735 · form4.xml · nonDerivative · entry 4

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 106,114

F5 · kind: 3,951 shares are being surrendered as allowed by the Company's 2014 Stock Incentive Plan to cover payment of taxes currently due on previously granted restricted stock units.

Read SEC document
February 23, 2022 Filed Feb 25, 2022 13:36 UTC TREX CO INC TREX · Entity 3990 GrantCommon Stock 3,845 $82.01 $315,328.45
Disclosure

SEC source: 0001127602-22-006735 · form4.xml · nonDerivative · entry 3

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 110,065

F4 · kind: Represents net share difference between target performance-based shares and actual vested shares, based upon actual performance for the Company.

Read SEC document
February 23, 2022 Filed Feb 25, 2022 13:36 UTC TREX CO INC TREX · Entity 3990 GrantCommon Stock 3,837 $82.01 $314,672.37
Disclosure

SEC source: 0001127602-22-006735 · form4.xml · nonDerivative · entry 2

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 106,220

F2 · kind: This restricted stock unit award is performance-based, and vests over a three-year period in three equal installments occurring March 1,2023, March 1, 2024 and March 1, 2025. 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.

Read SEC document
February 23, 2022 Filed Feb 25, 2022 13:36 UTC TREX CO INC TREX · Entity 3990 GrantCommon Stock 2,686 $82.01 $220,278.86
Disclosure

SEC source: 0001127602-22-006735 · form4.xml · nonDerivative · entry 1

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 102,383

F1 · kind: This restricted stock unit vests over a three-year period in three equal annual installments occurring March 1,2023, March 1, 2024 and March 1, 2025.

Read SEC document
February 19, 2022 Filed Feb 22, 2022 14:59 UTC TREX CO INC TREX · Entity 3990 Tax withholdingCommon Stock 560 $85.42 $47,835.20
Disclosure

SEC source: 0001127602-22-005866 · form4.xml · nonDerivative · entry 2

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 99,697

F2 · kind: 560 shares are being surrendered as allowed by the Company's 2014 Stock Incentive Plan to cover payment of taxes currently due on previously granted restricted shares.

Read SEC document
February 17, 2022 Filed Feb 22, 2022 14:59 UTC TREX CO INC TREX · Entity 3990 Tax withholdingCommon Stock 283 $89.17 $25,235.11
Disclosure

SEC source: 0001127602-22-005866 · form4.xml · nonDerivative · entry 1

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 100,257

F1 · kind: 283 shares are being surrendered as allowed by the Company's 2014 Stock Incentive Plan to cover payment of taxes currently due on previously granted restricted shares.

Read SEC document
February 13, 2022 Filed Feb 15, 2022 15:13 UTC TREX CO INC TREX · Entity 3990 Tax withholdingCommon Stock 765 $85.29 $65,246.85
Disclosure

SEC source: 0001127602-22-004945 · form4.xml · nonDerivative · entry 1

Gupp William R. · CIK 0001428106 · Sr VP, CLO & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 100,540

F1 · kind: 765 shares are being surrendered as allowed by the Company's 2014 Stock Incentive Plan to cover payment of taxes currently due on previously granted restricted shares.

Read SEC document
November 11, 2021 Filed Nov 12, 2021 15:16 UTC TREX CO INC TREX · Entity 3990 SaleCommon Stock 3,488 $127.89 $446,080.32
Disclosure

SEC source: 0001127602-21-028897 · form4.xml · nonDerivative · entry 5

Gupp William R. · CIK 0001428106 · Sr VP,Gen. Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 101,305

F4 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person on May 17, 2021.

Read SEC document
November 10, 2021 Filed Nov 12, 2021 15:16 UTC TREX CO INC TREX · Entity 3990 Exercise / conversionStock Appreciation Right · Derivative 6,640 $0.00 Strike: $10.97 $0.00
Disclosure

SEC source: 0001127602-21-028897 · form4.xml · derivative · entry 6

Gupp William R. · CIK 0001428106 · Sr VP,Gen. Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 6,640 shares

Expires 2023-02-12

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
November 10, 2021 Filed Nov 12, 2021 15:16 UTC TREX CO INC TREX · Entity 3990 Tax withholdingCommon Stock 2,866 $127.26 $364,727.16
Disclosure

SEC source: 0001127602-21-028897 · form4.xml · nonDerivative · entry 4

Gupp William R. · CIK 0001428106 · Sr VP,Gen. Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 104,793

F3 · kind: 2,866 shares are being surrendered as allowed by the Company's 2014 Stock Incentive Plan to cover payment of taxes currently due on previously granted restricted shares.

Read SEC document
November 10, 2021 Filed Nov 12, 2021 15:16 UTC TREX CO INC TREX · Entity 3990 Disposition to issuerCommon Stock 286 $127.26 $36,396.36
Disclosure

SEC source: 0001127602-21-028897 · form4.xml · nonDerivative · entry 3

Gupp William R. · CIK 0001428106 · Sr VP,Gen. Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 107,659

Read SEC document
November 10, 2021 Filed Nov 12, 2021 15:16 UTC TREX CO INC TREX · Entity 3990 Exercise / conversionCommon Stock 6,640 $10.97 $72,840.80
Disclosure

SEC source: 0001127602-21-028897 · form4.xml · nonDerivative · entry 2

Gupp William R. · CIK 0001428106 · Sr VP,Gen. Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 107,945

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · kind: Stock Appreciation Rights (SARs) are being exercised pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 17, 2021.

Read SEC document
November 10, 2021 Filed Nov 12, 2021 15:16 UTC TREX CO INC TREX · Entity 3990 SaleCommon Stock 2,150 $131.00 $281,650.00
Disclosure

SEC source: 0001127602-21-028897 · form4.xml · nonDerivative · entry 1

Gupp William R. · CIK 0001428106 · Sr VP,Gen. Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 101,305

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person on May 17,2021.

Read SEC document
May 12, 2021 Filed May 12, 2021 17:47 UTC TREX CO INC TREX · Entity 3990 SaleCommon Stock 7,288 $102.85 $749,570.80
Disclosure

SEC source: 0001127602-21-016357 · form4.xml · nonDerivative · entry 4

Gupp William R. · CIK 0001428106 · Sr VP,Gen. Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 103,455

F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person on August 5, 2020.

Read SEC document
May 12, 2021 Filed May 13, 2021 21:36 UTC Amendment TREX CO INC TREX · Entity 3990 SaleCommon Stock 7,288 $102.85 $749,570.80
Disclosure

SEC source: 0001127602-21-016658 · form4a.xml · nonDerivative · entry 4

Gupp William R. · CIK 0001428106 · Sr VP,Gen. Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 103,455

F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person on August 5, 2020.

Read SEC document
May 11, 2021 Filed May 12, 2021 17:47 UTC TREX CO INC TREX · Entity 3990 Exercise / conversionStock Appreciation Right · Derivative 14,000 $0.00 Strike: $5.49 $0.00
Disclosure

SEC source: 0001127602-21-016357 · form4.xml · derivative · entry 5

Gupp William R. · CIK 0001428106 · Sr VP,Gen. Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,000

Underlying: Common Stock · 14,000 shares

Expires 2023-02-12

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
May 11, 2021 Filed May 12, 2021 17:47 UTC TREX CO INC TREX · Entity 3990 Tax withholdingCommon Stock 5,988 $106.10 $635,326.80
Disclosure

SEC source: 0001127602-21-016357 · form4.xml · nonDerivative · entry 3

Gupp William R. · CIK 0001428106 · Sr VP,Gen. Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 110,743

F2 · kind: 5,988 shares are being surrendered as allowed by the Company's 2014 Stock Incentive Plan to cover the payment of taxes currently due on previously granted restricted shares.

Read SEC document
May 11, 2021 Filed May 12, 2021 17:47 UTC TREX CO INC TREX · Entity 3990 Disposition to issuerCommon Stock 724 $106.10 $76,816.40
Disclosure

SEC source: 0001127602-21-016357 · form4.xml · nonDerivative · entry 2

Gupp William R. · CIK 0001428106 · Sr VP,Gen. Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 116,731

Read SEC document
May 11, 2021 Filed May 12, 2021 17:47 UTC TREX CO INC TREX · Entity 3990 Exercise / conversionCommon Stock 14,000 $5.49 $76,790.00
Disclosure

SEC source: 0001127602-21-016357 · form4.xml · nonDerivative · entry 1

Gupp William R. · CIK 0001428106 · Sr VP,Gen. Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 117,455

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Stock Appreciation Rights (SARs) are being exercised pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 5, 2020.

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May 11, 2021 Filed May 13, 2021 21:36 UTC Amendment TREX CO INC TREX · Entity 3990 Exercise / conversionStock Appreciation Right · Derivative 14,000 $0.00 Strike: $5.49 $0.00
Disclosure

SEC source: 0001127602-21-016658 · form4a.xml · derivative · entry 5

Gupp William R. · CIK 0001428106 · Sr VP,Gen. Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 14,000 shares

Expires 2023-02-12

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · balance_after: This Amendment is being filed to correct an error in this box.

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May 11, 2021 Filed May 13, 2021 21:36 UTC Amendment TREX CO INC TREX · Entity 3990 Tax withholdingCommon Stock 5,988 $106.10 $635,326.80
Disclosure

SEC source: 0001127602-21-016658 · form4a.xml · nonDerivative · entry 3

Gupp William R. · CIK 0001428106 · Sr VP,Gen. Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 110,743

F2 · kind: 5,988 shares are being surrendered as allowed by the Company's 2014 Stock Incentive Plan to cover the payment of taxes currently due on previously granted restricted shares.

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May 11, 2021 Filed May 13, 2021 21:36 UTC Amendment TREX CO INC TREX · Entity 3990 Disposition to issuerCommon Stock 724 $106.10 $76,816.40
Disclosure

SEC source: 0001127602-21-016658 · form4a.xml · nonDerivative · entry 2

Gupp William R. · CIK 0001428106 · Sr VP,Gen. Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 116,731

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May 11, 2021 Filed May 13, 2021 21:36 UTC Amendment TREX CO INC TREX · Entity 3990 Exercise / conversionCommon Stock 14,000 $5.49 $76,790.00
Disclosure

SEC source: 0001127602-21-016658 · form4a.xml · nonDerivative · entry 1

Gupp William R. · CIK 0001428106 · Sr VP,Gen. Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 117,455

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Stock Appreciation Rights (SARs) are being exercised pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 5, 2020.

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February 24, 2021 Filed Feb 25, 2021 20:22 UTC TREX CO INC TREX · Entity 3990 SaleCommon Stock 7,223 $92.85 $670,655.55
Disclosure

SEC source: 0001127602-21-007872 · form4.xml · nonDerivative · entry 4

Gupp William R. · CIK 0001428106 · Sr VP,Gen. Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 103,455

F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person on August 5, 2020.

F4 · balance_after: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $92.53 to $93.02, inclusive.

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February 23, 2021 Filed Feb 25, 2021 20:22 UTC TREX CO INC TREX · Entity 3990 Exercise / conversionStock Appreciation Right · Derivative 14,000 $0.00 Strike: $5.48 $0.00
Disclosure

SEC source: 0001127602-21-007872 · form4.xml · derivative · entry 5

Gupp William R. · CIK 0001428106 · Sr VP,Gen. Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,000

Underlying: Common Stock · 14,000 shares

Expires 2023-02-12

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.