Holding(s) in Company

Catlin Group Limited
03 May 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:

       46,100   FIGEST      CDC Finance Total
      828,200   FII         Bank of New York Europe London Total
       15,500   FIJ         Brown Bros Harriman & Co Total
       33,500   FIL         BNP Paribas, Paris (C) Total
      634,952   FIL         Brown Bros Harriman Ltd Lux Total
       97,500   FIL         JP Morgan, Bournemouth Total
       32,000   FIL         Northern Trust London Total
    2,557,541   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
      326,012   FPM         HSBC Bank plc Total
      744,380   FPM         JP Morgan, Bournemouth Total
      694,256   FPM         Northern Trust London Total
    1,087,219   FPM         State Street Bank and Trust Co London Total
    7,396,017               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:

    3 May 2005

12. Total holding following this notification:

    7,396,017

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

    4.80%

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: 3 May 2005

The FSA does not give any express or implied warranty as to the accuracy of this
document or material and does not accept any liability for error or omission.
The FSA is not liable for any damages (including, without limitation, damages
for loss of business or loss of profits) arising in contract, tort or otherwise
from the use of or inability to use this document, or any material contained in
it, or from any action or decision taken as a result of using this document or
any such material.






                      This information is provided by RNS
            The company news service from the London Stock Exchange