Serco Group plc

Major Interest in Shares

In accordance with Section 198 - 202 of the Companies Act 1985, the Company was
today notified of the following reduced Notifiable Interest, which was effected
on 16 December 2003:

Morley Fund Management Limited (a subsidiary of Aviva plc) 4.92%

Contact - Francesca Todd 01256 745900



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