Serco Group plc (the "Company") was notified on 13 May 2010 that, on 12 May
2010, Ed Casey, a person discharging managerial responsibility, exercised a nil
cost conditional share award over 17,685 shares, granted to him under the
Company's 2006 Long Term Incentive Plan. He sold 7,219 shares on the London
market at a price of 632 pence per share to settle tax and dealing costs. The
balance of 10,466 shares has been retained in his own name.

This notice is given in fulfilment of obligations under DTR3.1.2R and DTR3.1.4R
(1)(a).