Holding(s) in Company

RNS Number:1103Q
Alexon Group PLC
15 August 2005


                           SCHEDULE 10
 
             NOTIFICATION OF MAJOR INTERESTS IN SHARES


1)   NAME OF COMPANY

     ALEXON GROUP PLC

2)   NAME OF SHAREHOLDER HAVING A MAJOR INTEREST

     CAPITAL

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



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

     SEE BELOW

5)   Number of shares/amount of stock acquired.



6)   Percentage of issued Class


7)   Number of shares/amount of stock disposed


8)   Percentage of issued Class


9)   Class of security

      ORD 10P SHARES

10)  Date of transaction



11)  Date company informed



12)  Total holding following this notification

      4053122
               
13)  Total percentage holding of issued class following this notification

      6.970%

14)  Any additional information



15)  Name of contact and telephone number for queries

     R. PIGGOTT
     01582 - 723131

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

     Date of Notification ..15 AUG 2005......



Letter to  Alexon Group plc
Dated  9 August 2005


                         SECTION 198 NOTIFICATION 
                         Notification of Decrease


This Notice is given by The Capital Group Companies, Inc. on behalf of its
affiliates, including Capital International S.A., Capital International Limited,
Capital International, Inc., and Capital Guardian Trust Company, pursuant to
Section 198 of the Companies Act 1985.

The interest in the relevant share capital indicated below arises by virtue of 
holdings attributed to the Companies (see Schedule A). These holdings form part 
of funds managed on behalf of investment clients by the Companies.

          Share capital to which this relates;


               Ordinary Shares (58,149,706 shares outstanding) 

          Number of shares in which the Companies have an interest:

               4,053,122 

Name(s) of registered holder(s):


      See Schedule B
 

As of 9 August 2005 

Alexon Group plc
                                                        Number of     Percent of
                                                        Shares       Outstanding


The Capital Group Companies, Inc. ("CG") holdings       4,053,122         6.970%

Holdings by CG Management Companies and Funds:


*  Capital Guardian Trust Company                       2,747,260          4724%

*  Capital International Limited                        1,209,874         2.081%

*  Capital International S.A.                              21,791         0.037%

*  Capital International, Inc.                             74,197         0.128%
  

 
                                       Schedule A
 


                        Schedule of holdings in Alexon Group plc 
                                  As of 9 August 2005

                              Capital Guardian Trust Company


Registered Name                                                     Local Shares

State Street Nominees Limited                                            153,816

Chase Nominees Limited                                                 2,257,981

Midland Bank plc                                                         335,463

                                                   TOTAL               2,747,260


                                       Schedule B

 
                               Capital International Limited

Registered Name                                                     Local Shares

Chase Nominees Limited                                                 1,209,874

                                                   TOTAL               1,209,874


             
                                       Schedule B



                              Capital International S.A.


Registered Name                                                     Local Shares

Citibank London                                                           21,791


                                                    TOTAL                 21,791



                                        Schedule B

 
                                  Capital International, Inc.


Registered Name                                                     Local Shares

State Street Nominees Limited                                             29,809

Chase Nominees Limited                                                    44,388
  

                                                     TOTAL                74,197


 


                                       Schedule B






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

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