Holding(s) in Company

27th May 2010 10:05

For filings with the FSA include the annex For filings with issuer exclude the annex TR-1: Notifications of Major Interests in Shares 1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:

Serco Group plc 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 1 Lansdowne Partners Limited being thenotification General Partner of Lansdowne Partners obligation: Limited Partnership 2 Lansdowne Partners International Limited

4. Full name of shareholder(s) (if Morstan Nominees Ltd (Registered different from 3):

Shareholder) 5. Date of transaction (and date on 24 May 2010 which the threshold is crossed or reached if different): 6. Date on which issuer notified: 26 May 2010 7. Threshold(s) that is/are crossed or 5% reached: 8: Notified Details A: Voting rights attached to shares

Class/type of Situation previous to Resulting situation after shares the triggering the triggering transaction transaction If possible Number of Number of Number Number of Percentage of use shares voting of voting rights voting rights ISIN code rights shares Direct Indirect Direct Indirect GB0007973794 below 5% below 5% 25,179,410 5.11% 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) Total (A+B) Number of voting rights Percentage of voting rights 25,179,410 5.11%

9. Chain of controlled undertakings through which the voting rights and /or the financial instruments are effectively held, if applicable:

Lansdowne Partners International Limited is the parent undertaking of LansdownePartners Limited Proxy Voting: 10. Name of proxy holder: Lansdowne Partners Limited

11. Number of voting rights proxy holder will cease to hold: 12. Date on which proxy holder will 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: Sarah Howfield, Company Secretarial Assistant

15. Contact telephone name: 01256 744272

For notes on how to complete form TR-1 please see the FSA website.

Note: Annex should only be submitted to the FSA not the issuer

Annex: Notification of major interests in shares

A: Identity of the persons or legal entity subject to the notification obligation

Full name (including legal form of legal

entities) Contact address (registered office for legal entities) Phone number & email Other useful information

(at least legal representative for legal persons) B: Identity of the notifier, if applicable

Full name Contact address Phone number & email Other useful information

(e.g. functional relationship with the person or legal entity subject to the notification obligation)

C: Additional information

vendor

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Related Shares:

Serco