Holding(s) in Company

Stem Cell Sciences plc
16 September 2005

                                  SCHEDULE 10

                   NOTIFICATION OF MAJOR INTERESTS IN SHARES


1.   Name of company

      Stem cell Sciences Plc

2.   Name of shareholder having a major interest

     GAM London 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 above

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

     GAM UK Diversified

5.   Number of shares/amount of stock acquired

     Not disclosed

6.   Percentage of issued class

     Not stated

7.   Number of shares/amount of stock disposed

     Not stated

8.   Percentage of issued class

     Not stated

9.   Class of security

     Ordinary shares

10.  Date of transaction

     As at close of business 26 August 2005

11.  Date company informed

     13 September 2005

12.  Total holding following this notification

     713,928

13.  Total percentage holding of issued class following this notification

     3.207%

14.  Any additional information


15.  Name of contact and telephone number for queries

     Hugh Ilyine 0131 650 8587

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

     Hugh Ilyine, Vice President and C.O.O.

Date of notification 16 September 2005




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