Holding(s) in Company

Hiscox PLC
14 August 2003

                   Notification of interests in shares under

                     Section 198 of the Companies Act 1985




1. - Name of Company


Hiscox plc


2. - Name of Shareholder having a major interest


Notification is in respect of indirect interests


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


Notification is in respect of a non-beneficial interest held by AMVESCAP Plc
either directly or through its subsidiary companies


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

Vidacos Nominees Ltd                                                  24,341,465

HSBC Nominees Limited                                                  2,358,883

Chase Nominees Limited                                                 1,746,363

Bank of New York                                                       1,288,112

Northern Trust Nominees Limited                                          550,000

CM Investment Nominees Ltd                                                26,385


5. - Number of shares / amount of stock acquired


330,000


6. - Percentage of issued class


Less than 1%


7. - Number of shares / amount of stock disposed


N/A


8. - Percentage of issued Class


N/A


9. - Class of security


Ordinary Shares of 5p


10. - Date of Transaction


8 August 2003


11. - Date Company informed


12 August 2003


12. - Total holding following this notification


30,311,208


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


10.42%


14. - Any additional information


The holding, the subject of this notification of interest, also includes a
notifiable interest in the holding of INVESCO Perpetual UK Growth Funds which
now holds 8,975,145 shares (3.08%) registered in the name of Vidacos Nominees
Ltd.


15. - Name of contact and telephone number for queries


Stuart Bridges: 020 7448 6000


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

Stuart Bridges
Finance Director
Date of Notification: 14 August 2003


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