Holding(s) in Company

Catlin Group Limited
28 June 2006


                                  SCHEDULE 10

                   NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Name of company

   CATLIN GROUP LIMITED

2. Name of shareholder having a major interest

   BARCLAYS PLC

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

   HOLDINGS IN RESPECT OF BARCLAYS GLOBAL INVESTORS NA, BARCLAYS GLOBAL 
   INVESTORS LTD, WOOLWICH UNIT TRUST MANAGERS LTD, BARCLAYS PRIVATE BANK AND 
   TRUST LTD, BARCLAYS BANK PLC, BARCLAYS CAPITAL INC, BARCLAYS CAPITAL 
   SECURITIES LTD, BARCLAYS GLOBAL INVESTORS AUSTRALIA LTD, BARCLAYS GLOBAL 
   INVESTORS JAPAN LTD, GERRARD LTD, BARCLAYS LIFE ASURANCE CO LTD,

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

Registered Holder                                       Account          Holding
                                                    Designation

BANK OF IRELAND                                          258227           73,201
BANK OF IRELAND                                         4239749          121,011
BANK OF IRELAND                                          427057            3,722
Bank of Ireland Nominees Limited                CREST ID. 11X13          791,500
Bank of Ireland Nominees Limited                CREST ID. 11X13          183,000
BANK OF NEW YORK                                         210405           83,652
BANK OF NEW YORK                                         221428           75,878
BANK OF NEW YORK                                         367748          231,989
BANK OF NEW YORK                                         392067          250,599
BANK OF NEW YORK                                         768198           30,126
BARCLAYS CAPITAL NOMINEES LIMITED                                         52,000
BARCLAYS CAPITAL NOMINEES LIMITED                                        778,857
BARCLAYS CAPITAL NOMINEES LIMITED                                         62,500
BARCLAYS CAPITAL NOMINEES LIMITED                                        550,374
BNP PARIBAS                                                               39,898
BNY (OCS) NOMINEES LTD                                   221476           46,339
BNY (OCS) NOMINEES LTD                                   387173          108,005
BOISS NOMINEES LTD                                      4224361           76,909
CHASE NOMINEES LTD                                        16376           57,350
CHASE NOMINEES LTD                                        16669           17,186
CHASE NOMINEES LTD                                        19518           17,168
CHASE NOMINEES LTD                                        19519          224,284
CHASE NOMINEES LTD                                        19520           10,763
CHASE NOMINEES LTD                                        20947        6,743,998
CHASE NOMINEES LTD                                        21359          189,238
CHASE NOMINEES LTD                                        25772           84,970
CHASE NOMINEES LTD                                        27793            5,855
CHASE NOMINEES LTD                                        27797           20,825
CHASE NOMINEES LTD                                        27800          107,299
CHASE NOMINEES LTD                                        28270           38,311
CHASE NOMINEES LTD                                        28270           96,596
CHASE NOMINEES LTD                                        31961          152,122
CIBC MELLON GLOBAL SECURITIES                                             32,261
CITIBANK                                             6010640794           30,505
CITIBANK                                             6010782807           53,060
Clydesdale Nominees HGB0125                           120130701            5,000
HSBC                                                     813168          148,647
HSBC                                                     845315            3,262
INVESTORS BANK AND TRUST CO.                                             671,562
INVESTORS BANK AND TRUST CO.                                               4,880
INVESTORS BANK AND TRUST CO.                                              87,247
INVESTORS BANK AND TRUST CO.                                              52,498
INVESTORS BANK AND TRUST CO.                                               2,455
INVESTORS BANK AND TRUST CO.                                           1,602,869
INVESTORS BANK AND TRUST CO.                                             143,622
JP MORGAN (BGI CUSTODY)                                   16331           22,551
JP MORGAN (BGI CUSTODY)                                   16341          192,090
JP MORGAN (BGI CUSTODY)                                   16341           65,814
JP MORGAN (BGI CUSTODY)                                   16344           70,365
JP MORGAN (BGI CUSTODY)                                   16345          106,741
JP MORGAN (BGI CUSTODY)                                   16400          975,674
JP MORGAN (BGI CUSTODY)                                   16612           35,711
JP MORGAN (BGI CUSTODY)                                   16901            8,429
JP MORGAN (BGI CUSTODY)                                   18409           91,181
JP MORGAN (BGI CUSTODY)                                   19514           12,657
JP MORGAN (BGI CUSTODY)                                   28166          270,920
JP MORGAN (BGI CUSTODY)                                   29514          108,292
JP MORGAN (BGI CUSTODY)                                   38245           14,563
JPMORGAN CHASE BANK                                                      275,488
JPMorgan Chase Bank                                                       28,914
JPMorgan Chase Bank                                                       55,703
JPMorgan Chase Bank                                                       44,772
MELLON BANK                                                4002           23,757
MELLON BANK                                         ABGFZ872482          314,390
MELLON BANK                                         TGGF0003002           11,879
Mellon Trust - US CUSTODIAN /                                             71,884
MELLON TRUST OF NEW ENGLAND                                               42,788
MIDLAND BANK (HSBC BANK PLC)                             772823          293,334
NORTHERN TRUST                                            CVS21          170,211
NORTHERN TRUST                                            SCO06           35,022
NORTHERN TRUST                                            TNF01           48,226
NORTHERN TRUST                                            TRG01            6,969
NORTHERN TRUST                                            UKE01          101,923
NORTHERN TRUST                                            USF12          300,355
NORTHERN TRUST BANK - BGI SEPA                                            22,184
NORTHERN TRUST BANK - BGI SEPA                                           111,341
NORTHERN TRUST BANK - BGI SEPA                                            91,657
R C Greig Nominees Limited                                                 1,600
STATE STREET                                               2RJ2           10,188
STATE STREET                                               JD12           57,735
STATE STREET                                               JFBL           31,441
STATE STREET                                               N3B6           40,843
STATE STREET                                               N3YZ            4,314
STATE STREET BANK & TRUST - WI                                            80,438
STATE STREET TRUST OF CANADA -                                            73,343
The Northern Trust Company - U                                            52,505

Group Holding                                                         18,541,585


5. Number of shares / amount of stock acquired

   610,851

6. Percentage of issued class

   0.37%

7. Number of shares / amount of stock disposed

   N/A

8. Percentage of issued class

   N/A

9. Class of security

   COMMON SHARES OF $0.01 EACH

10. Date of transaction

    HOLDINGS ARE AS AT 23 JUNE 2006. 'SHARES ACQUIRED' IS INCREASE SINCE PREVIOUS
    DISCLOSURE

11. Date company informed

    28 JUNE 2006

12. Total holding following this notification

    18,541,585

13. Total percentage holding of issued class following this notification

    11.33%

14. Any additional information

15. Name of contact and telephone number for queries

    WILLIAM SPURGIN 0207 458 5726

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

    WILLIAM SPURGIN, HEAD OF INVESTOR RELATIONS


Date of notification

28 JUNE 2006


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