LOG.L Regulatory News (LOG)

2 Dec 2011 11:40

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:

Logica plc (ISIN: GB0005227086)

2. Reason for the notification:

An acquisition or disposal of voting rights

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

Aviva plc & its subsidiaries

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

Registered Holder Interest Number of shares BNY Nominees Limited Direct 627,435 BNY Norwich Union Nominees Limited Direct 7,468,726 Chase (GA Group) Nominees Limited Direct 37,879,591 Chase Nominees Limited Direct 1,591,265 CUIM Nominee Limited Direct 141,781 Vidacos Nominees Limited Direct 487,708

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

30 November 2011

6. Date on which issuer notified:

2 December 2011

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

3% to

8. Notified details:

A: Voting rights attached to shares

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

GB0005227086 (SEDOL 0522708)

Situation previous to the triggering transaction

Number of shares: 79,504,704 Number of voting rights: 79,504,704

Resulting situation after the triggering transaction

Number of shares (direct): 48,196,506 Number of voting rights (direct): 48,196,506 Number of voting rights (indirect): Not disclosable % of voting rights (direct): 2.99% % of voting rights (indirect): Not disclosable

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument: -- Expiration date: -- Exercise/Conversion Period: -- Number of voting rights that may be acquired --if the instrument is exercised/converted: % of voting rights: --

C: Financial Instrumentswith similar economic effect to Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument: -- Exercise price: n/a Expiration date: n/a Exercise/Conversion Period: n/a Number of voting rights instrument refers to -- % of voting rights - Nominal -- % of voting rights - Delta n/aTotal (A+B+C)Number of voting rights: 48,196,506 % of voting rights: 2.99%

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

The voting rights are managed and controlled by Aviva Investors Global Services Limited with the following chain of controlled undertakings:-

Aviva Investors Global Services Limited:

* Aviva plc (Parent Company) * Aviva Group Holdings Ltd (wholly owned subsidiary of Aviva plc) * Aviva Investors Holdings Ltd (wholly owned subsidiary of Aviva Group Holdings Ltd) * Aviva Investors Global Services Ltd (wholly owned subsidiary of Aviva Investors Holdings Ltd) Proxy voting:10. Name of the proxy holder:See Section 4

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:

Figures are based on a total number of voting rights of 1,611,970,936 as per the Company's Total Voting Rights announcement of 1 December 2011.

14. Contact name:

T L Egan, Assistant Company Secretary, Logica plc

15. Contact telephone number:01372 369750Date: 2 December 2011