Holding(s) in Company

Hiscox PLC
13 September 2004

13 September 2004
Hiscox plc
Holding(s) in Company

On 13 September, 2004 Hiscox plc ('Hiscox') received the notification set out
below from Barclays PLC, in respect of a 5.03 per cent. interest in the issued
share capital of Hiscox as at 8 September, 2004.

Legal Entity Report

As at 8 September 2004 Barclays PLC, through the legal entities listed below,
had a notifiable interest in 14,669,027 ORD GBP0.05 representing 5.03% of the
issued share capital of 291,616,118 units.

Legal Entity                                       Holding       Percentage Held

Barclays Life Assurance Co Ltd                     277,347               .0951
Barclays Global Investors, N.A.                  1,071,829               .3675
Gerrard Ltd                                         19,900               .0068
Barclays Global Investors Australia Ltd            107,281               .0368
Barclays Capital Securities Ltd                    100,000               .0343
Barclays Global Investors Ltd                   13,092,670              4.4897
                             Group Holding      14,669,027              5.0302

Registered Holders Report
As at 8 September 2004 Barclays PLC, through the registered holders listed
below, had a notifiable interest in 14,669,027 ORD GBP0.05 representing 5.03% of
the issued share capital of 291,616,118 units.

Registered Holder                                     Account          Holding
                                                      Designation
Barclays Capital Nominees LIMI                                         100,000
BNP Paribas                                                             26,644
Chase Nominees Ltd                                    16376            166,562
Chase Nominees Ltd                                    20947         10,180,531
Chase Nominees Ltd                                    21359             12,664
CIBC Mellon Global Securities                                            6,129
Investors Bank and Trust Co.                                           606,117
Investors Bank and Trust Co.                                            30,135
Investors Bank and Trust Co.                                            88,875
Investors Bank and Trust Co.                                           183,582
Investors Bank and Trust Co.                                            10,549
JP Morgan (BGI Custody)                               16331             74,689
JP Morgan (BGI Custody)                               16341            202,658
JP Morgan (BGI Custody)                               16400          2,578,031
JP Morgan (BGI Custody)                               18409            154,882
JPMorgan Chase Bank                                                    107,281
Mellon Trust of New England                                             34,154
Northern Trust Bank - BGI SEPA                                           7,301
Northern Trust Bank - BGI SEPA                                          32,387
Northern Trust Bank - BGI SEPA                                          45,956
R C Greig Nominees Limited a/c                          BL1             12,000
R C Greig Nominees Limited GP1                          GP1              7,900

                        Total                                       14,669,027

ENDS



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