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	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden 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* SWED PATRICK M (Last) (First) (Middle) 225 WEST STATION SQUARE DRIVE, SUITE 700 (Street) PITTSBURGH PA 15219 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol WESCO INTERNATIONAL INC [ WCC ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) VICE PRESIDENT, OPERATIONS
	3. Date of Earliest Transaction (Month/Day/Year) 03/08/2005
	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)
			Code	V	Amount	(A) or (D)	Price

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
WESCO INTERNATIONAL COMMON STOCK	$36.5	03/08/2005	03/08/2005	X			1,500	03/08/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	1,500	$36.5	48,579	D
WESCO INTERNATIONAL COMMON STOCK	$36.52	03/08/2005	03/08/2005	X			179	03/08/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	179	$36.52	48,400	D
WESCO INTERNATIONAL COMMON STOCK	$35.7	03/09/2005	03/09/2005	X			1,400	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	1,400	$35.7	47,000	D
WESCO INTERNATIONAL COMMON STOCK	$35.72	03/09/2005	03/09/2005	X			100	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	100	$35.72	46,900	D
WESCO INTERNATIONAL COMMON STOCK	$35.73	03/09/2005	03/09/2005	X			100	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	100	$35.73	46,800	D
WESCO INTERNATIONAL COMMON STOCK	$35.75	03/09/2005	03/09/2005	X			200	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	200	$35.75	46,600	D
WESCO INTERNATIONAL COMMON STOCK	$35.76	03/09/2005	03/09/2005	X			1,800	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	1,800	$35.76	44,800	D
WESCO INTERNATIONAL COMMON STOCK	$35.77	03/09/2005	03/09/2005	X			300	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	300	$35.77	44,500	D
WESCO INTERNATIONAL COMMON STOCK	$35.78	03/09/2005	03/09/2005	X			200	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	200	$35.78	44,300	D
WESCO INTERNATIONAL COMMON STOCK	$35.8	03/09/2005	03/09/2005	X			800	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	800	$35.8	43,500	D
WESCO INTERNATIONAL COMMON STOCK	$35.81	03/09/2005	03/09/2005	X			1,400	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	1,400	$35.81	42,100	D
WESCO INTERNATIONAL COMMON STOCK	$35.82	03/09/2005	03/09/2005	X			1,200	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	1,200	$35.82	40,900	D
WESCO INTERNATIONAL COMMON STOCK	$35.83	03/09/2005	03/09/2005	X			400	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	400	$35.83	40,500	D
WESCO INTERNATIONAL COMMON STOCK	$35.85	03/09/2005	03/09/2005	X			1,500	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	1,500	$35.85	39,000	D
WESCO INTERNATIONAL COMMON STOCK	$35.86	03/09/2005	03/09/2005	X			1,900	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	1,900	$35.86	37,100	D
WESCO INTERNATIONAL COMMON STOCK	$35.87	03/09/2005	03/09/2005	X			1,400	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	1,400	$35.87	35,700	D
WESCO INTERNATIONAL COMMON STOCK	$35.88	03/09/2005	03/09/2005	X			2,700	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	2,700	$35.88	33,000	D
WESCO INTERNATIONAL COMMON STOCK	$35.9	03/09/2005	03/09/2005	X			700	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	700	$35.9	32,300	D
WESCO INTERNATIONAL COMMON STOCK	$35.92	03/09/2005	03/09/2005	X			1,000	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	1,000	$35.92	31,300	D
WESCO INTERNATIONAL COMMON STOCK	$35.93	03/09/2005	03/09/2005	X			1,100	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	1,100	$35.93	30,200	D
WESCO INTERNATIONAL COMMON STOCK	$35.94	03/09/2005	03/09/2005	X			400	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	400	$35.94	29,800	D
WESCO INTERNATIONAL COMMON STOCK	$35.95	03/09/2005	03/09/2005	X			7,100	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	7,100	$35.95	22,700	D
WESCO INTERNATIONAL COMMON STOCK	$35.96	03/09/2005	03/09/2005	X			6,700	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	6,700	$35.96	16,000	D
WESCO INTERNATIONAL COMMON STOCK	$35.97	03/09/2005	03/09/2005	X			600	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	600	$35.97	15,400	D
WESCO INTERNATIONAL COMMON STOCK	$35.98	03/09/2005	03/09/2005	X			600	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	600	$35.98	14,800	D
WESCO INTERNATIONAL COMMON STOCK	$35.99	03/09/2005	03/09/2005	X			200	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	200	$35.99	14,600	D
WESCO INTERNATIONAL COMMON STOCK	$36	03/09/2005	03/09/2005	X			3,000	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	3,000	$36	11,600	D
WESCO INTERNATIONAL COMMON STOCK	$36.01	03/09/2005	03/09/2005	X			600	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	600	$36.01	11,000	D
WESCO INTERNATIONAL COMMON STOCK	$36.02	03/09/2005	03/09/2005	X			300	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	300	$36.02	10,700	D
WESCO INTERNATIONAL COMMON STOCK	$36.04	03/09/2005	03/09/2005	X			1,200	03/09/2005	04/17/2005(1)	WESCO INTERNATIONAL COMMON STOCK	1,200	$36.04	9,500	D

Explanation of Responses:

1. Pursuant to the provisions of the Long-Term Option Agreements.

Remarks:

	/s/ PATRICK M. SWED	03/10/2005
	** 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.