X0202 4 2007-07-31 0 0000911649 STRATEGIC DIAGNOSTICS INC/DE/ SDIX 0001349005 Becker Steven R 300 CRESCENT COURT SUITE 1111 DALLAS TX 75201 0 0 1 0 Common Stock 2007-07-31 4 P 0 3743 4.3342 A 2067039 I See Footnote Represents shares held directly by SRB Greenway Capital, L.P. (222,964 shares), SRB Greenway Capital (QP), L.P. (1,742,975 shares) and SRB Greenway Offshore Operating Fund, L.P. (101,100 shares). The Reporting Person disclaims beneficial ownership in such shares except to the extent of his pecuniary interest therein. /s/ Steven R. Becker 2007-08-02