X0201 42003-10-2800000799089ASCENTIAL SOFTWARE CORP ASCL0001184792GYENES PETERC/O 50 WASHINGTON STREETWESTBOROUGHMA015811100Chief Executive OfficerCommon Stock2003-10-284M0156256.64A68562DCommon Stock2003-10-284M0156256.64A68562DCommon Stock2003-10-284M0315707.86A68562DCommon Stock2003-10-284M035807.86A68562DCommon Stock2003-10-284M041377.86A68562DCommon Stock2003-10-284M0601511.432A68562DCommon Stock2003-10-284M0844811.432A68562DCommon Stock2003-10-284S03000021.7634D68562DCommon Stock2003-10-284S03000022.0501D68562DCommon Stock2003-10-284S02500022.20D68562DCommon Stock (right to buy)6.642003-10-284M0156256.64D2003-10-172012-10-16Common Stock156250DCommon Stock (right to buy)6.642003-10-284M0156256.64D2003-10-172012-10-16Common Stock156250DCommon Stock (right to buy)7.862003-10-284M0315707.86D2000-03-012006-09-30Common Stock315700DCommon Stock (right to buy)7.862003-10-284M035807.86D2000-03-012006-09-30Common Stock35800DCommon Stock (right to buy)7.862003-10-284M041377.86D2000-03-012006-09-30Common Stock41370DCommon Stock (right to buy)11.4322003-10-284M0601511.432D2000-03-012008-02-25Common Stock60150DCommon Stock (right to buy)11.4322003-10-284M0844811.432D2000-03-012008-02-25Common Stock8448248036DFollowing all of the transactions reported on this Form 4, the reporting person holds 68,562 shares directly./s/ Scott N. Semel, by power of attorney2003-10-30