RNS Number:5180U
Celltech Group PLC
22 January 2004


                                  SCHEDULE 10

                   NOTIFICATION OF MAJOR INTERESTS IN SHARES
1. Name of company

Celltech Group plc

2. Name of shareholder having a major interest

The Capital Group Companies, Inc.

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

As in 2 above

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

State Street Nominees Ltd                                        4,500
Chase Nominees Ltd                                           2,227,403
Citibank London                                                106,100
Nortrust Nominees                                              992,000
Mellon Nominees (UK) Ltd                                       141,500
State Street Nominees Ltd                                      382,300
Bank of New York Nominees                                    6,818,607
Northern Trust                                               1,520,302
Chase Nominees Ltd                                           2,946,063
Midland Bank plc                                               168,500
Bankers Trust                                                3,154,500
Barclays Bank                                                   60,000
Citibank London                                                 53,000
Morgan Guaranty                                                441,500
Nortrust Nominees                                            3,714,638
State Street Bank & Trust Co                                 2,054,693
Deutsche Bank AG                                             1,459,800
HSBC Bank plc                                                1,308,300
Mellon Bank N.A.                                               230,300
Northern Trust AVFC                                            196,436
KAS UK                                                          64,810
Mellon Nominees (UK) Ltd                                        63,500
Bank One London                                                141,400
State Street Nominees Ltd                                       58,000
Bank of New York Nominees                                       82,000
Chase Nominees Ltd                                           2,652,391
Midland Bank plc                                               534,500
Barclays Bank                                                  566,900
Citibank London                                                 23,700
Brown Bros.                                                     51,500
Royal Bank of Scotland                                       1,238,200
State Street Bank & Trust Co.                                   80,400
Lloyds Bank                                                     83,100
RBSTB Nominees Ltd                                             133,300
Citibank NA                                                     17,600
HSBC Bank plc                                                  381,100
State Street Nominees Ltd                                    1,306,259
Bank of New York Nominees                                      200,468
Chase Nominees Ltd                                             851,000
Midland Bank plc                                               153,700
Deutsche Bank Mannheim                                          48,000
Bankers Trust                                                   18,300
Citibank London                                                 52,000
Nortrust Nominees                                              514,023
Royal Bank of Scotland                                         129,500
State Street Bank & Trust Co                                   342,599
RBSTB Nominees Ltd                                              26,300
Citibank NA                                                     98,400
Deutsche Bank AG                                                31,200
HSBC Bank plc                                                  189,709
State Street Nominees Ltd                                    4,697,133

5. Number of shares / amount of stock acquired

2,335,401 since last notification

6. Percentage of issued class
                                                                  
0.84%

7. Number of shares / amount of stock disposed

N/a

8. Percentage of issued class

N/a

9. Class of security

Ordinary 50p Shares

10. Date of transaction

20 January 2004


11. Date company informed

22 January 2004

12. Total holding following this notification
                                                            
42,811,434

13. Total percentage holding of issued class following this notification
                                                                 
15.42%

14. Any additional information
                                                                     -
15. Name of contact and telephone number for queries

Anita Dowling (01753) 777106

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

J A D Slater

Date of notification

22 January 2004

The FSA does not give any express or implied warranty as to the accuracy of this
document or material and does not accept any liability for error or omission.
The FSA is not liable for any damages (including, without limitation, damages
for loss of business or loss of profits) arising in contract, tort or otherwise
from the use of or inability to use this document, or any material contained in
it, or from any action or decision taken as a result of using this document or
any such material.



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