X0201 42003-08-2200000929008WESCO INTERNATIONAL INC WCC0001104808THALMAN WILLIAM M225 WEST STATION SQUARE DRIVE, SUITE 700PITTSBURGHPA152190100CORPORATE CONTROLLEROption for WESCO International Common Stock5.92003-08-224A0100005.9A2013-08-22WESCO International Common Stock1000010000DOptions vest at a rate of 1/3 per year on the anniversary date of the option grant over the next three years./s/ William M. Thalman2003-08-26