X0202 4 2005-12-23 0000798955 COST PLUS INC/CA/ CPWM 0001159120 KREVLIN GLENN J C/O GLENHILL CAPITAL MANAGEMENT LLC 598 MADISON AVENUE, 12TH FLOOR NEW YORK, NY 10022 0 0 1 0 0001137521 GLENHILL ADVISORS LLC C/O GLENHILL CAPITAL MANAGEMENT LLC 598 MADISON AVENUE, 12TH FLOOR NEW YORK NY 10022 0 0 1 0 0001137522 GLENHILL CAPITAL MANAGEMENT LLC 598 MADISON AVENUE, 12TH FLOOR NEW YORK NY 10022 0 0 1 0 Common Stock 2005-12-23 2005-12-23 4 P 0 191500 16.2867 A 2701895 I See Footnote Common Stock 2005-12-23 2005-12-23 4 P 0 108500 16.1952 A 2810395 I See Footnote Common Stock 2005-12-27 2005-12-27 4 P 0 360400 16.3766 A 3170795 I See Footnote Common Stock 2005-12-27 2005-12-27 4 P 0 21800 16.37 A 3192595 I See Footnote Common Stock 2005-12-27 2005-12-27 4 P 0 67800 16.3296 A 3260395 I See Footnote The reporting person is the managing member of a limited liability company that has investment control and owns a minority interest in various private investment funds, including Glenhill Capital LP, Glenhill Capital Overseas Master Fund, L.P. and Glenhill Concentrated Long Master Fund LLC which own the reported securities. The reporting person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. /s/ GLENN J. KREVLIN 2005-12-28 /s/ GLENN J. KREVLIN, as managing member of Glenhill Advisors LLC 2005-12-28 /s/ GLENN J. KREVLIN, as managing member of Glenhill Advisors LLC, the managing member of Glenhill Capital Management LLC 2005-12-28