Holding(s) in Company

SCHEDULE 10

NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Name of company

Sopheon plc                                                                    

2. Name of shareholder having a major interest

Mr P. J. Korpershoek                                                           

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

In respect of 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

Euroclear Nominees Limited                                                     

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

N/A                                                                            

8. Percentage of issued class

N/A                                                                            

9. Class of security

Ordinary Shares                                                                

10. Date of transaction

N/A                                                                            

11. Date company informed

5 May 2005                                                                     

12. Total holding following this notification

5,500,000                                                                      

13. Total percentage holding of issued class following this notification

4.7%                                                                           

14. Any additional information

N/A                                                                            

15. Name of contact and telephone number for queries

Arif Karimjee, Company Secretary, 01483 685 735                                

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

Arif Karimjee, Company Secretary, 01483 685 735                                

Date of notification

6 May 2005                                                                     

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