Holding(s) in Company

Catlin Group Limited
17 March 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 LTD, GERRARD LTD, BARCLAYS
GLOBAL INVESTORS JAPAN LTD, BARCLAYS CAPITAL SECURITIES LTD, BARCLAYS BANK PLC,
BARCLAYS GLOBAL INVESTORS, N.A., WOOLWICH UNIT TRUST MANAGERS LTD, BARCLAYS
PRIVATE BANK AND TRUST LTD, BARCLAYS LIFE ASSURANCE CO LTD, BARCLAYS GLOBAL
INVESTORS AUSTRALIA 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 Designation                Holding

BANK OF IRELAND                           258227                 73,201
BANK OF IRELAND                          4239749                121,011
BANK OF IRELAND                           427057                  3,722
Bank of Ireland Nominees           CREST ID. 11X13              667,220
Limited
Bank of Ireland Nominees           CREST ID. 11X13              167,000
Limited
BANK OF NEW YORK                          210405                 83,652
BANK OF NEW YORK                          214074                  2,585
BANK OF NEW YORK                          214075                570,885
BANK OF NEW YORK                          221428                 75,878
BANK OF NEW YORK                          367748                291,809
BANK OF NEW YORK                          367993                183,374
BANK OF NEW YORK                          392067                317,615
BANK OF NEW YORK                          392498                201,464
BANK OF NEW YORK                          768198                 30,126
BARCLAYS CAPITAL NOMINEES                                       572,070
LIMITED
BNP PARIBAS                                                      46,790
BNY (OCS) NOMINEES LTD                    221476                 46,339
BNY (OCS) NOMINEES LTD                    387173                108,005
BOISS NOMINEES LTD                       4224361                 68,066
CHASE NOMINEES LTD                         16376                 57,350
CHASE NOMINEES LTD                         16530                 38,499
CHASE NOMINEES LTD                         16669                 17,186
CHASE NOMINEES LTD                         18243                 14,994
CHASE NOMINEES LTD                         19518                 17,168
CHASE NOMINEES LTD                         19519                224,284
CHASE NOMINEES LTD                         19520                 10,763
CHASE NOMINEES LTD                         20947              6,800,207
CHASE NOMINEES LTD                         21359                274,652
CHASE NOMINEES LTD                         25772                 84,970
CHASE NOMINEES LTD                         27793                  7,856
CHASE NOMINEES LTD                         27800                107,299
CHASE NOMINEES LTD                         28270                 96,596
CHASE NOMINEES LTD                         28270                 38,311
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.                                    670,773
INVESTORS BANK AND TRUST CO.                                  1,639,588
INVESTORS BANK AND TRUST CO.                                    119,645
INVESTORS BANK AND TRUST CO.                                      2,455
INVESTORS BANK AND TRUST CO.                                     51,319
INVESTORS BANK AND TRUST CO.                                      4,880
INVESTORS BANK AND TRUST CO.                                    149,581
JP MORGAN (BGI CUSTODY)                    16331                 22,551
JP MORGAN (BGI CUSTODY)                    16341                 65,814
JP MORGAN (BGI CUSTODY)                    16341                192,090
JP MORGAN (BGI CUSTODY)                    16344                 70,365
JP MORGAN (BGI CUSTODY)                    16345                106,741
JP MORGAN (BGI CUSTODY)                    16400              1,186,889
JP MORGAN (BGI CUSTODY)                    16612                 35,711
JP MORGAN (BGI CUSTODY)                    16621                 15,767
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
JPMORGAN CHASE BANK                                             265,931
JPMorgan Chase Bank                                              44,772
JPMorgan Chase Bank                                              55,703
JPMorgan Chase Bank                                              28,914
MELLON BANK                            ABGFZ872482              355,770
MELLON BANK                            TGGF0003002               35,636
Mellon Trust - US CUSTODIAN /                                    77,110
MELLON TRUST OF NEW ENGLAND                                      77,438
MIDLAND BANK (HSBC BANK PLC)              772823                293,334
NORTHERN TRUST                               CVS21              170,211
NORTHERN TRUST                               SCO06               37,023
NORTHERN TRUST                               TNF01               48,226
NORTHERN TRUST                               TRG01                6,969
NORTHERN TRUST                               UKE01               63,503
NORTHERN TRUST                               USF12              300,355
NORTHERN TRUST BANK - BGI SEPA                                  104,550
NORTHERN TRUST BANK - BGI SEPA                                   26,483
NORTHERN TRUST BANK - BGI SEPA                                  113,141
R C Greig Nominees Limited                                        1,600
R C Greig Nominees Limited a/c                                    2,000
AK1
STATE STREET                                  2RJ2               12,587
STATE STREET                                  JD12               57,735
STATE STREET                                  JFBL               71,977
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

                                           TOTAL             19,173,863


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

30,801


8. Percentage of issued class

0.02%


9. Class of security

COMMON SHARES OF $0.01 EACH


10. Date of transaction

HOLDINGS ARE AS AT 14 MARCH 2006. 'SHARES DISPOSED' IS

DECREASE SINCE PREVIOUS DISCLOSURE


11. Date company informed

17 MARCH 2006


12. Total holding following this notification

19,173,863


13. Total percentage holding of issued class following this notification

11.72%


14. Any additional information

ON 15 MARCH 2006 CATLIN ANNOUNCED ISSUED SHARES ARE NOW 163,623,498 (AN INCREASE
OF 7,708,882 SINCE THE PREVIOUS DISCLOSURE AS AT 31 DECEMBER 2005).

...............................................................


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

17 MARCH 2006


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