Holding(s) in Company

Senior PLC
22 January 2007


                           SCHEDULE 10
 
             NOTIFICATION OF MAJOR INTERESTS IN SHARES


1)   NAME OF COMPANY


     SENIOR PLC



2)   NAME OF SHAREHOLDER HAVING A MAJOR INTEREST


     SCHRODER INVESTMENT MANAGEMENT LTD



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


     SHAREHOLDER NAMED 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.


     SCHRODER INVESTMENT MANAGEMENT                    6.764%

     SCHRODER & CO  LTD                                0.0142%

     SCHRODER INVESTMENT MANAGEMENT JAPAN LTD          0.00359%


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 SHARES OF 10P EACH


10)  Date of transaction




11)  Date company informed


     22/01/07


12)  Total holding following this notification


     26,443,546
               
13)  Total percentage holding of issued class following this notification


     6.781%





14)  Any additional information




15)  Name of contact and telephone number for queries

 
     01923 714716


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


     Date of Notification     22ND JANUARY 2007






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