Holding(s) in Company

Senior PLC
21 December 2006


NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Name of company

Senior plc

2. Name of shareholder having a major interest

Barclays 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

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

As set out 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

Ordinary 10 p

10. Date of transaction

-

11. Date company informed

21 December 2006

12. Total holding following this notification

27,915,223

13. Total percentage holding of issued class following this notification

7.16%

14. Any additional information

Shareholding reduced to below 8% threshold.

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 December 2006


Registered Holder                         Account               Holding
                                      Designation         

Barclays Capital Nominees Ltd                   -             2,508,940
Barclays Trust Co                           DMC69               156,000
Chase Nominees Ltd                          16376               154,815
Chase Nominees Ltd                          20947            16,951,875
Chase Nominees Ltd                          21359             1,265,062
Chase Nominees Ltd                          28270               383,834
JP Morgan (BGI Custody)                     16331               455,185
JP Morgan (BGI Custody)                     16341             1,078,869
JP Morgan (BGI Custody)                     16344               225,799
JP Morgan (BGI Custody)                     16345               424,329
JP Morgan (BGI Custody)                     16400             2,312,959
JP Morgan (BGI Custody)                     16482             1,650,827
JP Morgan (BGI Custody)                     18409               306,200
RC Grieg Nominees Ltd                           -                11,532
RC Grieg Nominees Ltd                         GP1                 2,140
RC Grieg Nominees Ltd                         AK1                19,164
RC Grieg Nominees Ltd                         BL1                 2,688
RC Grieg Nominees Ltd                         CM1                 5,005

TOTAL                                                        27,915,223






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