X0202 4 2006-11-17 1 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 2006-11-17 4 S 0 50000 11.1947 D 2640395 I See Footnote Common Stock 2006-11-17 4 S 0 530976 11.3615 D 2109419 I See Footnote Common Stock 2006-11-17 4 S 0 50000 11.5255 D 2059419 I See Footnote Common Stock 2006-11-17 4 S 0 50000 11.6927 D 2009419 I See Footnote Common Stock 2006-11-17 4 S 0 25000 11.87 D 1984419 I See Footnote Common Stock 2006-11-17 4 S 0 31800 11.9558 D 1952619 I See Footnote Common Stock 2006-11-17 4 S 0 500 12.012 D 1952119 I See Footnote Common Stock 2006-11-17 4 S 0 32800 12.0248 D 1919319 I See Footnote Common Stock 2006-11-17 4 S 0 28000 12.0312 D 1891319 I See Footnote Common Stock 2006-11-17 4 S 0 600 12.17 D 1890719 I See Footnote Common Stock 2006-11-17 4 S 0 18324 12.2776 D 1872395 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 Concentrated Long Master Fund, LLC sold 200,000 of the securities reported in this Form 4, Glenhill Capital, LP sold 432,723 of the securities reported in this Form 4 and Glenhill Capital Overseas Master Fund, LP sold 185,277 of the securities sold in this Form 4. The reporting person(s) have begun discussions with the issuer of the reported securities to fully reimburse the issuer for any profits in connection with these trades, recoverable pursuant to Section 16(b) of the Securities Exchange Act of 1934. /s/ Glenn J. Krevlin 2006-11-21 /s/ Glenn J. Krevlin, Managing Member, Glenhill Advisors, LLC 2006-11-21