X0202 4 2006-08-21 0000798955 COST PLUS INC/CA/ CPWM 0001137521 GLENHILL ADVISORS LLC 598 MADISON AVENUE, 12TH FLOOR NEW YORK NY 10022 0 0 1 0 0001159120 KREVLIN GLENN J GLENHILL ADVISORS, LLC 598 MADISON AVENUE, 12TH FLOOR NEW YORK NY 10022 0 0 1 0 Common Stock 2006-08-21 4 S 0 195000 10.034 D 2765395 I See Footnote Common Stock 2006-08-21 4 S 0 274000 10.094 D 2491395 I See Footnote Common Stock 2006-08-21 4 S 0 500 10.165 D 2490895 I See Footnote Common Stock 2006-08-21 4 S 0 9800 10.286 D 2481095 I See Footnote Common Stock 2006-08-21 4 S 0 100 10.305 D 2480995 I See Footnote Common Stock 2006-08-21 4 S 0 2300 10.355 D 2478695 I See Footnote Common Stock 2006-08-21 4 S 0 10000 10.378 D 2468695 I See Footnote Common Stock 2006-08-21 4 S 0 5500 10.38 D 2463195 I See Footnote Common Stock 2006-08-21 4 S 0 2800 10.437 D 2460395 I See Footnote The reporting person, Glenn J. Krevlin, is the managing member of Glenhill Advisors, LLC, 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, LP, and Glenhill Concentrated Long Master Fund, LLC, which collectively own the reported securities. Mr. Krevlin disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. Glenhill Capital LP sold 350,100 of the securities reported in this Form 4, and Glenhill Capital Overseas Master Fund, LP sold 149,900 of the securities reported in this Form 4. By: /s/ Glenn J. Krevlin 2006-08-23 By: /s/ Glenn J. Krevlin, Managing Member, Glenhill Advisors, LLC 2006-08-23