Holding(s) in Company

RNS Number:3740V
Alexon Group PLC
13 February 2004

                           SCHEDULE 10
 
             NOTIFICATION OF MAJOR INTERESTS IN SHARES


1)   NAME OF COMPANY

     ALEXON GROUP PLC


2)   NAME OF SHAREHOLDER HAVING A MAJOR INTEREST

     SCHRODERS PLC


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 LETTER 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

     13/2/04


12)  Total holding following this notification

     13,460,260

               
13)  Total percentage holding of issued class following this notification

     22.069%


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 Notification13 FEBRUARY 2004

LETTER TO:  ALEXON GROUP
            12 February 2004

Alexon Group 
10p ORDINARY SHARES ("SHARES")

We write to advise you that we, Schroder Investment Management Limited, have an
interest in 12,240,300 shares which areheld in portfolios managed by us on a
discretionary basis for clients under investment management agreements.
Included In this figure are:-

(i)    5,615,453 shares held in (a) unit trust(s) operated and managed by an 
       affiliated company, Schroder Unit Trusts Limited (SUTL), and registered 
       or to be registered in the name of Chase Nominees Limited, and

(ii)   6,624,847 shares neither registered nor to be registered in the name of 
       Schroder Nominees Limited. The registration details are shown on the 
       enclosed schedule.

An affiliated company, Schroder Investment Management North America Inc (SIMNA
Inc), is managing a portfolio on a similar basis holding a further 1,219,960
shares. This holding is registeredor to be registered in the name of Chase
Nominees Limited.

We believe that we, our subsidiary and affiliated company are therefore
interested in an overall aggregate of 13,460,260 shares, representing some
22.069% of the total number of shares inissue, namely 60,993,001.

This notification is made to you:-

(a) in respect of our interest as investment managers.

(b) on behalf of SUTL and SIMNA Inc in relation to the interests they are 
    treated as having respectively under the Companies Act 1985 (the Act), and

(c) on behalf of Schroders plc., our holding company, which is treated as having 
    an interest in all of the above shares under the Act by virtue of its 
    ownership of SIMNA Inc, SUTL and ourselves.

Alison Dunn Regulatory 
Reporting Officer
                       
                                 10P ORDINARY SHARES 

                                     SCHEDULE
 
REGISTRATION                                                              AMOUNT

British Coal Staff Superannuation a/c: P                               2,446,413 

Chase Nominees Limited                                                   500,000 

Chase Manhattan Bank                                                   1,010,700 

Mineworkers' Pension Scheme a/c: R                                     2,645,619 

Banque Internationale a Luxembourg S                                      22,115

                                                                       6,624,847
     

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

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