Holding(s) in Company

Senior PLC
22 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

22 December 2006

12. Total holding following this notification

39,231,846

13. Total percentage holding of issued class following this notification

10.06%

14. Any additional information

Shareholding now greater than 10% 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

22 December 2006



Registered Holder                   Account                      Holding
                                Designation

Bank of Ireland                      258227                      340,252
Bank of Ireland                     4239749                      745,951
Bank of Ireland                      427057                      326,978
Bank of Ireland Nominees Ltd CREST ID.11X13                    1,038,180
Bank of New York                     210405                      316,760
Bank of New York                     221428                      536,730
Bank of New York                     768198                      117,759
Barclays Capital Nominees Ltd             -                    2,508,940
Barclays Trust Co                     DMC69                      156,000
Chase Nominees Ltd                    16376                      154,815
Chase Nominees Ltd                    20947                   17,163,453
Chase Nominees Ltd                    21359                    1,265,062
Chase Nominees Ltd                    25772                      316,614
Chase Nominees Ltd                    27800                    1,225,875
Chase Nominees Ltd                    28270                      383,834
Chase Nominees Ltd                    31961                    1,734,898
Citibank                         6010782807                      358,294
HSBC                                 845315                        5,992
JP Morgan (BGI Custody)               16331                      493,607
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)               16610                      240,000
JP Morgan (BGI Custody)               16612                      443,760
JP Morgan (BGI Custody)               16901                      101,586
JP Morgan (BGI Custody)               18409                      306,200
JP Morgan (BGI Custody)               38245                       46,503
Midland Bank (HSBC Bank plc)         772823                    1,052,715
Northern Trust                        CVS21                      758,468
Northern Trust                        TNF01                      464,154
Northern Trust                        UKE01                      647,241
RC Grieg Nominees Ltd                     -                       11,532
RC Grieg Nominees Ltd                     -                       87,037
RC Grieg Nominees Ltd                   GP1                       54,338
RC Grieg Nominees Ltd                   GP1                        2,140
RC Grieg Nominees Ltd                   SA1                       25,338
RC Grieg Nominees Ltd                   AK1                       19,164
RC Grieg Nominees Ltd                   BL1                        2,688
RC Grieg Nominees Ltd                   BL1                       81,200
RC Grieg Nominees Ltd                   CM1                        5,005

TOTAL                                                         39,231,846






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