Holding(s) in Company

Senior PLC
21 March 2005

                                  SCHEDULE 10

                   NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Name of company
Senior plc

2. Name of shareholder having a major interest
Notification by Aviva plc on behalf of Aviva plc and Morley Fund Management Limited

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
BNY Norwich Union Nominees Ltd - 2,364,488

Chase GA Group Nominees Limited - 9,205,068

Chase Nominees Limited - 1,182,138

CUIM Nominee Limited - 2,926,323

5. Number of shares / amount of stock acquired
2,000,000

6. Percentage of issued class
0.65%

7. Number of shares / amount of stock disposed
-

8. Percentage of issued class
-

9. Class of security
Ordinary 10p

10. Date of transaction
18 March 2005

11. Date company informed
21 March 2005

12. Total holding following this notification
15,678,017

13. Total percentage holding of issued class following this notification
5.10%

14. Any additional information
-

15. Name of contact and telephone number for queries
A Bodenham 01923 714745

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

Date of notification
21 March 2005

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.


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