Holding(s) in Company

31st May 2007 16:00

TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:

LogicaCMG plc

2. Reason for the notification (delete as appropriate):

- An acquisition or disposal of voting rights

3. Full name of person(s) subject to the notification obligation:

Capital Group International, Inc

4. Full name of shareholder(s) (if different from 3):

--

5. Date of the transaction and date on which the threshold is crossed or reached:

29 May 2007

6. Date on which issuer notified:

30 May 2007

7. Threshold(s) that is/are crossed or reached:

5%

8. Notified details:

A: Voting rights attached to shares

Class/type of shares (if possible using the ISIN CODE):

Ordinary

Situation previous to the triggering transaction

Number of shares: 77,043,275 Number of voting rights: 77,043,275

Resulting situation after the triggering transaction

Number of shares (direct): - Number of share (indirect): 75,361,260 Number of voting rights (direct): Number of voting rights (indirect): 75,361,260 % of voting rights (direct): - % of voting rights (indirect): 4.89%

B: Financial Instruments

Resulting situation after triggering transaction - N/A

- Type of financial instrument

- Expiration date

- Exercise/Conversion Period/Date

- Number of voting rights that may be acquired if the instrument is exercised/converted:- % of voting rightsTotal (A+B)Number of voting rights: 75,361,260 % of voting rights: 4.89%

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

Proxy voting:

10. Name of the proxy holder:

11. Number of voting rights proxy holder will cease to hold:

12. Date of which proxy holder will cease to hold voting rights:

13. Additional information:

14. Contact name: J E Gomm, Deputy Company Secretary, LogicaCMG plc

15. Contact telephone number: 020 7446 1805

LOGICACMG PLC

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Related Shares:

LOG.L