X0202 4 2005-08-02 1 0001091158 WEBSIDESTORY INC WSSI 0001018059 KORTSCHAK WALTER G C/O SUMMIT PARTNERS 222 BERKELEY STREET, 18TH FLOOR BOSTON MA 02116 0 0 0 1 Indirect GP of 10% Owner 0001018056 STAMPS E ROE IV C/O SUMMIT PARTNERS 222 BERKELEY STREET, 18TH FLOOR BOSTON MA 02116 0 0 0 1 Indirect GP of 10% Owner 0001018057 ROBERTS THOMAS S C/O SUMMIT PARTNERS 222 BERKELEY STREET, 18TH FLOOR BOSTON MA 02116 0 0 0 1 Indirect GP of 10% Owner 0001018062 EVANS BRUCE R C/O SUMMIT PARTNERS 222 BERKELEY STREET, 18TH FLOOR BOSTON MA 02116 0 0 0 1 Indirect GP of 10% Owner 0001018067 MANNION MARTIN J C/O SUMMIT PARTNERS 222 BERKELEY STREET, 18TH FLOOR BOSTON MA 02116 0 0 0 1 Indirect GP of 10% Owner 0001018068 AVIS GREGORY M C/O SUMMIT PARTNERS 222 BERKELEY STREET, 18TH FLOOR BOSTON MA 02116 0 0 0 1 Indirect GP of 10% Owner 0001018073 WOODSUM STEPHEN G C/O SUMMIT PARTNERS 222 BERKELEY STREET, 18TH FLOOR BOSTON MA 02116 0 0 0 1 Indirect GP of 10% Owner 0001255674 TRUSTEY JOSEPH F C/O SUMMIT PARTNERS 222 BERKELEY STREET, 18TH FLOOR BOSTON MA 02116 0 0 0 1 Indirect GP of 10% Owner Common Stock 2005-08-02 4 J 0 1000000 D 1139794 I Indirect GP of 10% Owner Common Stock 2005-08-02 4 J 0 35345 A 35345 I Indirect GP of 10% Owner Common Stock 2005-08-02 4 G 0 35345 D 0 I Held by Trust Pro-rata distribution to Partners. 741,657 shares held in the name of Summit Ventures V, L.P.; 172,652 shares held in the name of Summit V Companion Fund, L.P.; 16,010 shares held in the name of Summit V Advisors Fund, L.P.; 52,393 shares held in the name of Summit V Advisors Fund (QP), L.P.; and 17,288 shares held in the name of Summit Investors III, L.P. Not applicable. 845,337 shares held in the name of Summit Ventures V, L.P.; 196,788 shares held in the name of Summit V Companion Fund, L.P.; 18,248 shares held in the name of Summit V Advisors Fund, L.P.; 59,717 shares held in the name of Summit V Advisors Fund (QP), L.P.; and 19,704 shares held in the name of Summit Investors III, L.P. Each reporting person is a member of Summit Partners, LLC, which is the general partner of Summit Partners V, L.P., which, in turn, is the general partner of each of the entities named in Footnotes 2 & 3 above. As such, each reporting person may be deemed to beneficially own the shares of the Issuer owned directly by each of the Funds. The reporting persons disclaim beneficial ownership of such shares, and this report shall not be deemed an admission that the reporting persons are the beneficial owners of the securities for the purpose of Section 16 or for any other purpose, except to the extent of their pecuniary interest therein. Robin W. Devereux, Power of Attorney for Walter G. Kortschak 2005-08-02 Robin W. Devereux, Power of Attorney for E. Roe Stamps, IV 2005-08-02 Robin W. Devereux, Power of Attorney for Thomas S. Roberts 2005-08-02 Robin W. Devereux, Power of Attorney for Bruce R. Evans 2005-08-02 Robin W. Devereux, Power of Attorney for Martin J. Mannion 2005-08-02 Robin W. Devereux, Power of Attorney for Gregory M. Avis 2005-08-02 Robin W. Devereux, Power of Attorney for Stephen G. Woodsum 2005-08-02 Robin W. Devereux, Power of Attorney for Joseph F. Trustey 2005-08-02