SEC Filing | Trex Company Inc

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SEC FORM 4 SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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OMB Number:			3235-0287
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hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

MONAHAN HAROLD F

(Last)

(First)

(Middle)

160 EXETER DRIVE

(Street)

WINCHESTER

22603-8605

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
TREX CO INC [ TWP ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
Exec VP and General Manager

3. Date of Earliest Transaction (Month/Day/Year)
08/02/2004

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	08/02/2004	08/02/2004	M		328	A	$30.31	40,328	D
Common Stock	08/02/2004	08/02/2004	M		100	A	$30.31	40,428	D
Common Stock	08/02/2004	08/02/2004	M		200	A	$30.31	40,628	D
Common Stock	08/02/2004	08/02/2004	M		200	A	$30.31	40,828	D
Common Stock	08/02/2004	08/02/2004	M		1,900	A	$30.31	42,728	D
Common Stock	08/02/2004	08/02/2004	M		300	A	$30.31	43,028	D
Common Stock	08/02/2004	08/02/2004	M		400	A	$30.31	43,428	D
Common Stock	08/02/2004	08/02/2004	M		200	A	$30.31	43,628	D
Common Stock	08/02/2004	08/02/2004	M		600	A	$30.31	44,228	D
Common Stock	08/02/2004	08/02/2004	M		100	A	$30.31	44,328	D
Common Stock	08/02/2004	08/02/2004	M		100	A	$30.31	44,428	D
Common Stock	08/02/2004	08/02/2004	M		500	A	$30.31	44,928	D
Common Stock	08/02/2004	08/02/2004	M		100	A	$30.31	45,028	D
Common Stock	08/02/2004	08/02/2004	M		1,500	A	$30.31	46,528	D
Common Stock	08/02/2004	08/02/2004	M		1,500	A	$30.31	48,028	D
Common Stock	08/02/2004	08/02/2004	M		300	A	$30.31	48,328	D
Common Stock	08/02/2004	08/02/2004	M		1,700	A	$30.31	50,028	D
Common Stock	08/02/2004	08/02/2004	M		3,500	A	$30.31	53,528	D
Common Stock	08/02/2004	08/02/2004	M		5,222	A	$30.31	58,750	D
Common Stock	08/02/2004	08/02/2004	M		634	A	$24.2	59,384	D
Common Stock	08/02/2004	08/02/2004	M		444	A	$20	59,828	D
Common Stock	08/02/2004	08/02/2004	M		1,500	A	$20	61,328	D
Common Stock	08/02/2004	08/02/2004	M		1,000	A	$20	62,328	D
Common Stock	08/02/2004	08/02/2004	M		1,500	A	$20	63,828	D
Common Stock	08/02/2004	08/02/2004	M		3,300	A	$20	67,128	D
Common Stock	08/02/2004	08/02/2004	M		4,571	A	$20	71,699	D
Common Stock	08/02/2004	08/02/2004	M		829	A	$35.95	72,528	D
Common Stock	08/02/2004	08/02/2004	M		600	A	$35.95	73,128	D
Common Stock	08/02/2004	08/02/2004	M		600	A	$35.95	73,728	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Stock Options (Right to buy)	$20	08/02/2004	08/02/2004	M			444	02/21/2003	02/21/2012	Common Stock	444	$0	24,186	D
Stock Options (Right to buy)	$20	08/02/2004	08/02/2004	M			1,500	02/21/2003	02/21/2012	Common Stock	1,500	$0	22,686	D
Stock Options (Right to buy)	$20	08/02/2004	08/02/2004	M			1,000	02/21/2003	02/21/2012	Common Stock	1,000	$0	21,686	D
Stock Options (Right to buy)	$20	08/02/2004	08/02/2004	M			1,500	02/21/2003	02/21/2012	Common Stock	1,500	$0	20,186	D
Stock Options (Right to buy)	$20	08/02/2004	08/02/2004	M			3,300	02/21/2003	02/21/2012	Common Stock	3,300	$0	16,886	D
Stock Options (Right to buy)	$20	08/02/2004	08/02/2004	M			4,571	02/21/2003	02/21/2012	Common Stock	4,571	$0	12,315	D
Stock Options (Right to buy)	$24.2	08/02/2004	08/02/2004	M			634	02/23/2002	02/23/2011	Common Stock	634	$0	212	D
Stock Options (Right to buy)	$30.31	08/02/2004	08/02/2004	M			328	10/01/2000	10/01/2010	Common Stock	328	$0	24,672	D
Stock Options (Right to buy)	$30.31	08/02/2004	08/02/2004	M			100	10/01/2000	10/01/2010	Common Stock	100	$0	24,572	D
Stock Options (Right to buy)	$30.31	08/02/2004	08/02/2004	M			200	10/01/2000	10/01/2010	Common Stock	200	$0	24,372	D
Stock Options (Right to buy)	$30.31	08/02/2004	08/02/2004	M			200	10/01/2000	10/01/2010	Common Stock	200	$0	24,172	D
Stock Options (Right to buy)	$30.31	08/02/2004	08/02/2004	M			1,900	10/01/2000	10/01/2010	Common Stock	1,900	$0	22,272	D
Stock Options (Right to buy)	$30.31	08/02/2004	08/02/2004	M			300	10/01/2000	10/01/2010	Common Stock	300	$0	21,972	D
Stock Options (Right to buy)	$30.31	08/02/2004	08/02/2004	M			400	10/01/2000	10/01/2010	Common Stock	400	$0	21,572	D
Stock Options (Right to buy)	$30.31	08/02/2004	08/02/2004	M			200	10/01/2000	10/01/2010	Common Stock	200	$0	21,372	D
Stock Options (Right to buy)	$30.31	08/02/2004	08/02/2004	M			600	10/01/2000	10/01/2010	Common Stock	600	$0	20,772	D
Stock Options (Right to buy)	$30.31	08/02/2004	08/02/2004	M			100	10/01/2000	10/01/2010	Common Stock	100	$0	20,672	D
Stock Options (Right to buy)	$30.31	08/02/2004	08/02/2004	M			100	10/01/2000	10/01/2010	Common Stock	100	$0	20,572	D
Stock Options (Right to buy)	$30.31	08/02/2004	08/02/2004	M			500	10/01/2000	10/01/2010	Common Stock	500	$0	20,072	D
Stock Options (Right to buy)	$30.31	08/02/2004	08/02/2004	M			100	10/01/2000	10/01/2010	Common Stock	100	$0	19,972	D
Stock Options (Right to buy)	$30.31	08/02/2004	08/02/2004	M			1,500	10/01/2000	10/01/2010	Common Stock	1,500	$0	18,472	D
Stock Options (Right to buy)	$30.31	08/02/2004	08/02/2004	M			1,500	10/01/2000	10/01/2010	Common Stock	1,500	$0	16,972	D
Stock Options (Right to buy)	$30.31	08/02/2004	08/02/2004	M			300	10/01/2000	10/01/2010	Common Stock	300	$0	16,672	D
Stock Options (Right to buy)	$30.31	08/02/2004	08/02/2004	M			1,700	10/01/2000	10/01/2010	Common Stock	1,700	$0	14,972	D
Stock Options (Right to buy)	$30.31	08/02/2004	08/02/2004	M			3,500	10/01/2000	10/01/2010	Common Stock	3,500	$0	11,472	D
Stock Options (Right to buy)	$30.31	08/02/2004	08/02/2004	M			5,222	10/01/2000	10/01/2010	Common Stock	5,222	$0	6,250	D
Stock Options (Right to buy)	$35.95	08/02/2004	08/02/2004	M			829	02/25/2004	02/25/2013	Common Stock	829	$0	7,290	D
Stock Options (Right to buy)	$35.95	08/02/2004	08/02/2004	M			600	02/25/2004	02/25/2013	Common Stock	600	$0	6,690	D
Stock Options (Right to buy)	$35.95	08/02/2004	08/02/2004	M			600	02/25/2004	02/25/2013	Common Stock	600	$0	6,090	D

Explanation of Responses:

	Lynn E MacDonald	08/04/2004
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.