Holding(s) in Company

Hiscox PLC
19 October 2004


                             Holding(s) in Company

On 19 October, 2004 Hiscox plc ('Hiscox') received the notification set out
below from Barclays PLC, in respect of a 4.97 per cent. interest in the issued
share capital of Hiscox as at 14 October, 2004.

Legal Entity Report

As at 14 October 2004 Barclays PLC, through the legal entities listed below, had
a notifiable interest in 14,495,669 ORD GBP0.05 representing 4.97% of the issued
share capital of 291,831,263 units.

Legal Entity                                       Holding       Percentage Held

Barclays Life Assurance Co Ltd                     277,347               .0950
Barclays Global Investors Ltd                   13,107,682              4.4915
Gerrard Ltd                                         19,900               .0068
Barclays Global Investors, N.A.                  1,006,361               .3448
Barclays Global Investors Australia Ltd             84,379               .0289
                             Group Holding      14,495,669              4.9670

Registered Holders Report
As at 14 October 2004 Barclays PLC, through the registered holders listed below,
had a notifiable interest in 14,495,669 ORD GBP0.05 representing 4.97% of the
issued share capital of 291,831,263 units.

Registered Holder                                      Account         Holding
                                                 Designation
BNP Paribas                                                             26,644
Chase Nominees Ltd                                     16376           166,562
Chase Nominees Ltd                                     20947         9,695,741
Chase Nominees Ltd                                     21359             6,860
CIBC Mellon Global Securities                                            6,129
Investors Bank and Trust Co.                                           538,572
Investors Bank and Trust Co.                                            24,904
Investors Bank and Trust Co.                                           168,571
Investors Bank and Trust Co.                                            10,549
Investors Bank and Trust Co.                                            88,875
JP Morgan (BGI Custody)                                16331            74,689
JP Morgan (BGI Custody)                                16341           202,658
JP Morgan (BGI Custody)                                16400         3,083,637
JP Morgan (BGI Custody)                                18409           154,882
JPMorgan Chase Bank                                                     84,379
Mellon Trust - Boston & SF                                              25,226
Mellon Trust of New England                                             34,154
Northern Trust Bank - BGI SEPA                                           7,310
Northern Trust Bank - BGI SEPA                                          44,535
Northern Trust Bank - BGI SEPA                                          30,892
R C Greig Nominees Limited a/c                           BL1            12,000
R C Greig Nominees Limited GP1                           GP1             7,900

                        Total                                       14,495,669

                                      ENDS



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