X0202 4 2004-10-25 1 0001160241 DIGITALNET HOLDINGS INC DNET 0001021466 RAUNER BRUCE V C/O GTCR GOLDER RAUNER LLC SEARS TOWER #6100 CHICAGO IL 60606-6402 1 0 0 0 Common Stock, par value $0.001 per share 2004-10-25 4 D 0 7976535 30.25 D 0 I See Footnote Common Stock, par value $0.001 per share 2004-10-25 4 D 0 73029 30.25 D 0 I See Footnote The shares were disposed of pursuant to a merger agreement, dated September 11, 2004, between the issuer, BAE Systems North America Inc. and BAE Systems Acquisition Corp. in exchange for a cash payment of $30.25 per share. The Reporting Person expressly disclaims beneficial ownership of the shares reported in Table I, except to the extent of his pecuniary interest therein. The filing of this form shall not be deemed an admission that the Reporting Person is, for Section 16 purposes or otherwise, the beneficial owner of such shares. GTCR Fund VII, L.P. ("Fund VII") is the direct beneficial owner of the shares reported in Table I. GTCR Partners VII, L.P. ("GTCR Partners VII") is the general partner of Fund VII and GTCR Golder Rauner, L.L.C. ("GTCR") is the general partner of GTCR Partners VII. As such, GTCR Partners VII and GTCR may be deemed to be beneficial owners of the shares reported in Table I. GTCR is managed by its members. The Reporting Person is a member of GTCR and GTCR Partners VII and may be deemed to have an indirect pecuniary interest in the issuer's Common Stock owned by Fund VII to the extent of the Reporting Person's indirect proportionate interest in Fund VII. GTCR Co-Invest, L.P. ("Co-Invest") is the direct beneficial owner of the shares reported in Table I. GTCR is the general partner of Co-Invest. As such, GTCR may be deemed to be a beneficial owner of the shares reported in Table I. GTCR is managed by its members. The Reporting Person is a member of GTCR and may be deemed to have an indirect pecuniary interest in the issuer's Common Stock owned by Co-Invest to the extent of the Reporting Person's indirect proportionate interest in Co-Invest. /s/ Martin A. DiLoreto under a Power of Attorney dated October 9, 2003 2004-10-26