Holding(s) in Company

Catlin Group Limited
29 April 2005

                                   SCHEDULE 10

                    NOTIFICATION OF MAJOR INTERESTS IN SHARES

1.  Name of company:

    Catlin Group Limited

2.  Name of shareholder having a major interest:

    FMR Corp, Fidelity International Limited, Edward C Johnson 3d

3.  Please state whether notification indicates that it is in respect of 
    holding of the shareholder named in 2 above or in respect of a 
    non-beneficial interest or in the case of an individual holder if it is 
    a holding of that person's spouse or children under the age of 18 FMR 
    Corp and its direct and indirect subsidiaries, and Fidelity International 
    Limited (FIL) and its direct and indirect subsidiaries both being 
    non-beneficial holders

4.  Name of the registered holder(s) and, if more than one holder, the number 
    of shares held by each of them:

      606,700   FIL       Bank of New York Europe London Total
      480,052   FIL       Brown Bros Harriman Ltd Lux Total
    2,014,541   FISL      JP Morgan, Bournemouth Total
        4,000   FMRCO     JP Morgan Chase Bank Total
       51,546   FMRCO     State Street Bank and Trust Company Total
      202,800   FPM       Bank of New York Brussels Total
       40,511   FPM       BNP Paribas Frankfurt Total
      260,512   FPM       HSBC Bank plc Total
      744,380   FPM       JP Morgan, Bournemouth Total
      563,756   FPM       Northern Trust London Total
    1,087,219   FPM       State Street Bank and Trust Co London Total
    6,056,017             Grand Total Common Shares

5.  Number of shares / amount of stock acquired:

    N/A

6.  Percentage of issued class :

    N/A

7.  Number of shares / amount of stock disposed:

    N/A

8.  Percentage of issued class:

    N/A

9.  Class of security:

    Common shares

10. Date of transaction:

    N/A

11. Date company informed:

    29 April 2005

12. Total holding following this notification:

    6,056,017

13. Total percentage holding of issued class following this notification:

    3.93%

14. Any additional information:

15. Name of contact and telephone number for queries:

    William Spurgin, 020 7458 5726

16. Name and signature of authorised company official responsible for making
    this notification:

    William Spurgin, Head of Investor Relations
    Date of notification: 29 April 2005

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