X0202 4 2007-11-21 0 0001391984 Data Domain, Inc. DDUP 0000903510 ANDERSON DAVID L 755 PAGE MILL ROAD, SUITE A-200 PALO ALTO CA 943041005 0 0 1 0 Common Stock 2007-11-21 4 S 0 322843 25.8862 D 4946791 I By Ltd Partnership (SHV) Common Stock 220436 I By Ltd Partnership Pursuant to the prospectus filed with the SEC on 11/16/2007. Excludes 5,208 shares sold by Sutter Hill Ventures, A California Limited Partnership on behalf of Ronald D. Bernal, a director of the issuer. Sutter Hill Ventures, A California Limited Partnership does not have beneficial ownership over these 5,208 shares. Actual price was $25.88625. Excludes 79,802 shares held by Sutter Hill Ventures, A California Limited Partnership on behalf of Ronald D. Bernal, a director of the issuer. Sutter Hill Ventures, A California Limited Partnership does not have beneficial ownership over these 79,802 shares. Shares held by Sutter Hill Ventures, A California Limited Partnership. The reporting person is a Managing Director of the General Partner of Sutter Hill Ventures, A California Limited Partnership. The reporting person disclaims beneficial ownership in these shares except as to the reporting person's pecuniary interest in the partnership. Shares held by a limited partnership of which the reporting person is the General Partner. The reporting person disclaims beneficial ownership in these shares except as to the reporting person's pecuniary interest in the partnership. By: Robert Yin, by power of attorney 2007-11-26