Holding(s) in Company

TR-1: Notifications of Major Interests in Shares 1. Identity of the issuer or the underlying Serco Group plc issuer of existing shares to which voting rights are attached: 2. Reason for notification (yes/no) An acquisition or disposal of voting rights Yes An acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached An event changing the breakdown of voting rights Other (please specify):______________ 3. Full name of person(s) subject to Legal & General Group Plc (L&G) notification obligation: 4. Full name of shareholder(s) (if Legal & General Assurance (Pensions different from 3): Management) Limited (PMC) 5. Date of transaction (and date on 08 January 2009 which the threshold is crossed or reached if different): 6. Date on which issuer notified: 12 January 2009 7. Threshold(s) that is/are crossed or From 3% - 4%(L&G) reached: 8: Notified Details A: Voting rights attached to shares Class/type Situation previous Resulting situation after the triggering of shares to the triggering transaction transaction If possible use ISIN code Number of Number of Number of Number of voting Percentage of shares voting shares rights voting rights rights Direct Indirect Direct Indirect Ordinary 18,988,163 18,988,163 19,507,059 19,507,059 4.00 Share GB0007973794 B: Financial Instruments Resulting situation after the triggering transaction Type of Expiration Exercise/ No. of voting Percentage of financial date conversion rights that may be voting rights instrument period/date acquired (if the instrument exercised/ converted) N/A Total (A+B) Number of voting rights Percentage of voting rights 19,507,059 4.00 9. Chain of controlled undertakings through which the voting rights and /or the financial instruments are effectively held, if applicable: Legal & General Group Plc (Direct and Indirect) (Group) Legal & General Investment Management (Holdings) Limited (LGIMH) (Direct and Indirect) Legal & General Investment Management Limited (Indirect) (LGIM) Legal & General Group Plc (Direct) (L&G) (19,507,059 - 4.00% = LGAS, LGPL & PMC) Legal & General Investment Management (Holdings) Limited (Direct) (LGIMHD) (17,519,547 - 3.59% = PMC) Legal & General Insurance Holdings Limited (Direct) (LGIH) Legal & General Assurance (Pensions Management) Limited (PMC) (17,519,547 - 3.59% = PMC) Legal & General Assurance Society Limited (LGAS & LGPL) Legal & General Pensions Limited (Direct) (LGPL) Proxy Voting: 10. Name of proxy holder: N/A 11. Number of voting rights proxy N/A holder will cease to hold: 12. Date on which proxy holder will N/A cease to hold voting rights: 13. Additional information: Serco Group plc is disclosing this information in accordance with DTR 5.8.12. 14 Contact name: Chris Winters, Assistant Company Secretary Serco Group plc 15. Contact telephone number: 01256 744108

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Serco Group (SRP)
UK 100

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