Holding(s) in Company

Ricardo PLC
16 May 2005

                           SCHEDULE 10
 
             NOTIFICATION OF MAJOR INTERESTS IN SHARES


1)   NAME OF COMPANY

     RICARDO PLC

2)   NAME OF SHAREHOLDER HAVING A MAJOR INTEREST

     AEGON UK PLC GROUP OF COMPANIES

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.

     CHASE NOMINEES LIMITED     1,804,739

5)   Number of shares/amount of stock acquired.

     N/A

6)   Percentage of issued Class

     N/A

7)   Number of shares/amount of stock disposed

     200,000

8)   Percentage of issued Class

     0.4

9)   Class of security

     ORDINARY SHARES

10)  Date of transaction

     NOT KNOWN

11)  Date company informed

     16 MAY 2005

12)  Total holding following this notification

     1,804,739
               
13)  Total percentage holding of issued class following this notification

     3.61%

14)  Any additional information



15)  Name of contact and telephone number for queries

     M WIGHTMAN
     01273 794416

16)  Name and signature of authorised company official responsible for 
     making this notification
                               M. WIGHTMAN
     Date of Notification      16 MAY 2005


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