X0202 4 2004-08-02 0 0000929008 WESCO INTERNATIONAL INC WCC 0001278669 ENGEL JOHN 225 WEST STATION SQUARE DRIVE, SUITE 700 PITTSBURGH PA 15219 0 1 0 0 SR. VICE PRESIDENT & COO WESCO INTERNATIONAL COMMON STOCK 39000 D WESCO INTERNATIONAL COMMON STOCK 2004-08-02 4 P 0 300 20.55 A 39300 D WESCO INTERNATIONAL COMMON STOCK 2004-08-02 4 P 0 800 20.56 A 40100 D WESCO INTERNATIONAL COMMON STOCK 2004-08-02 4 P 0 700 20.57 A 40800 D WESCO INTERNATIONAL COMMON STOCK 2004-08-02 4 P 0 1700 20.60 A 42500 D WESCO INTERNATIONAL COMMON STOCK 2004-08-02 4 P 0 500 20.61 A 43000 D WESCO INTERNATIONAL COMMON STOCK 2004-08-02 4 P 0 1000 20.64 A 44000 D WESCO INTERNATIONAL COMMON STOCK 2004-08-02 4 P 0 4000 20.65 A 48000 D WESCO INTERNATIONAL COMMON STOCK 2004-08-02 4 P 0 1000 20.67 A 49000 D Employee Stock Option 16.82 2014-07-14 2014-07-14 Common Stock 100000 100000 D Employee Stock Option 16.82 2014-07-14 2014-07-14 Common Stock 100000 200000 D Options vest at a rate of 1/3 per year on the anniversary date of the option grant over the next three years. Notwithstanding the regular vesting schedule, the options are subject to forfeiture if the Reporting Person does not purchase at least 50,000 shares of the Issuer's common stock by July 14, 2005. In that event, the options will be forfeited based on a ratio of two option shares forfeited for every share of common stock not purchased up to the 50,000-share target. Options are subject to performance vesting, with any unvested options becoming vested 90 days prior to the expiration date of such options as long as the Reporting Person remains employed with the Issuer at that time. /s/ John Engel 2004-08-02