Xenova Group PLC
19 December 2002

                               XENOVA GROUP plc 

                            DEALINGS BY DIRECTORS

Xenova Group plc (the 'Company') hereby notifies the following grants or options 
on 18 December 2002 concerning the Directors named below.

Xenova Deferred Share Bonus Plan 2002

Pursuant to the Xenova Deferred Share Bonus Plan and following the purchase of 
qualifying shares, as previously announced, the following numbers of share 
options were granted to the Directors' over ordinary shares of 10 pence each 
('Xenova Shares') as set out below opposite their respective names for nil 
consideration and at an exercise price of 10 pence each:

Director     Period during which the   Number of Xenova   Total number of Xenova
             options are exercisable   shares over which  shares over which
                                       options were       options are held 
                                       granted            following grant

David        28/10/2005-27/10/2012     155,663            1,837,340
0xlade       

Daniel       28/10/2005-27/10/2012     107,664              987,118
Abrams       

Michael      28/10/2005-27/10/2012      45,428              947,100
Moore        

John         28/10/2005-27/10/2012      27,339              702,976
Waterfall           

John St      28/10/2005-27/10/2012      78,977              495,964
Clair Roberts