RNS Number:6714T
Xenova Group PLC
24 December 2003

LETTER TO:  XENOVA GROUP PLC

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 all of its subsidiary companies,
no longer have a notifiable interest in the issued share capital of your
company.

For the purposes of S210 of the Act, the address for those companies identified
herein is Laurence Pountney Hill London EC4R 0HH.

From:  Richard Harding
       for and on behalf of Prudential plc.

                Notifiable Position Report for XENOVA GROUP ORD GBP0.01
                              as at 23 December 2003

Percentage holdings are calculated using an issued share capital of 431,483,887
ORD GBP0.01 shares

Registered Holder                    Holding                    %

                               No Records Returned

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

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