RNS Number:9111P
Xenova Group PLC
18 September 2003

To: Xenova Group plc
Dated: 17 September 2003

Companies Act 1985 (as amended): 
Disclosure of Interests in Shares

In accordance with Part VI of the Companies Act 1985 (as amended) (the "Act"),
we write to inform you that Prudential plc and certain of its subsidiary
companies have a notifiable interest in the issued share capital of your company
as detailed in the schedule below.

For the purposes of S210 of the Act, the address for those companies identified 
in the schedule below is Laurence Pountney Hill London EC4R OHH.



          Notifiable Position Report for XENOVA GROUP ORD GBP0.10
                         as at 16 September 2003


Percentage holdings are calculated using an issued share capital of 246,078,893
ORD GBP0.10 shares

                Registered Holder                Holding             %

Prudential plc                                   7,600,000          3.08     Total Notifiable Interest
                PRUCLT HSBC GIS NOM(UK) PAC AC   7,300,000  
                PRUCLT HSBC GIS NOM(UK) PPL AC     300,000

The Prudential Assurance Company Limited         7,600,000          3.08
                PRUCLT HSBC GIS NOM(UK) PAC AC   7,300,000
                PRUCLT HSBC GIS NOM(UK) PPL AC     300,000


From: M&G Investment Management Limited


                      This information is provided by RNS
            The company news service from the London Stock Exchange

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