X0202 4 2005-08-03 1 0000929008 WESCO INTERNATIONAL INC WCC 0001099556 CYPRESS GROUP LLC 65 EAST 55TH STREET, 28TH FLOOR NEW YORK NY 10022 0 0 1 0 Common stock 2005-08-03 4 S 0 8628637 33.95 D 0 I See footnotes Common stock 2005-08-03 4 S 0 446899 33.95 D 0 I See footnotes Cypress Merchant Banking Partners ("CMBP") directly owns the shares of Common Stock. Cypress Associates L.P. ("Associates") is the general partner of CMBP. The general partner of Associates is The Cypress Group L.L.C., whose members are Jeffrey Hughes, James Singleton, David Spalding and James Stern. Therefore, each of Associates and The Cypress Group L.L.C. may be deemed to beneficially own the shares of Common Stock owned by CMBP. Cypress Offshore Partners L.P. ("COP") directly owns the shares of Common Stock. Associates is the general partner of COP. The general partner of Associates is The Cypress Group L.L.C., whose members are Jeffrey Hughes, James Singleton, David Spalding and James Stern. Therefore, each of Associates and The Cypress Group L.L.C. may be deemed to beneficially own the shares of Common Stock owned by COP. Information with respect to each of the Reporting Persons is given solely by such Reporting Persons, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Any disclosures made hereunder with respect to persons other than the Reporting Persons are made on information and belief after making appropriate inquiry. Pursuant to Rule 16a-1(4) promulgated under the Securities Exchange Act of 1934, as amended, each of the Reporting Persons herein states that the foregoing shall not be deemed an admission that he or it is the beneficial owner of any of the securities covered by this Statement. Exhibit List Exhibit 99 - Joint Filer Information /s/ James L. Singleton, member of The Cypress Group L.L.C. 2005-08-04