SPE.L Regulatory News (SPE)

For filings with the FSA include the annex

For filings with issuer exclude the annex

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARESi

1. Identity of the issuer or the underlying issuerof existing shares to which voting rights areattached: ii

Sopheon Plc

2 Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights

X

An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached

An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments

An event changing the breakdown of voting rights

Other (please specify):

3. Full name of person(s) subject to thenotification obligation: iii

Norman Nominees Limited

Myrtledare Corp

(related family holdings)

4. Full name of shareholder(s)  (if different from 3.):iv

Rock (Nominees) Limited

Euroclear 90998

5. Date of the transaction and date onwhich the threshold is crossed orreached: v

2nd December 2011

6. Date on which issuer notified:

2nd December 2011

7. Threshold(s) that is/are crossed orreached: vi, vii

8%

8. Notified details:

A: Voting rights attached to shares viii, ix

Class/type ofshares

if possible usingthe ISIN CODE

Situation previousto the triggeringtransaction

Resulting situation after the triggering transaction

NumberofShares

NumberofVotingRights

Numberof shares

Number of votingrights

% of voting rights x

Direct

Direct xi

Indirect xii

Direct

Indirect

5p Ords

Norman Nominees Limited

9,691,260

0

9,691,260

0

9,691,260

2,000,000

9,691,260

2,000,000

6.657%

1.374%

Myrtledare Corp

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate xiii

Exercise/Conversion Period xiv

Number of votingrights that may beacquired if theinstrument isexercised/ converted.

% of votingrights

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments xv, xvi

Resulting situation after the triggering transaction

Type of financialinstrument

Exercise price

Expiration date xvii

Exercise/Conversion period xviii

Number of voting rights instrument refers to

% of voting rights xix, xx

Convertible loan stock

7.75p

31 January 2013

Until 31 January 2013

2,580,645

Nominal

Delta

1.773%

Total (A+B+C)

Number of voting rights

Percentage of voting rights

14,271,905

9.804 %

9. Chain of controlled undertakings through which the voting rights and/or thefinancial instruments are effectively held, if applicable: xxi

Proxy Voting:

10. Name of the proxy holder:

11. Number of voting rights proxy holder will ceaseto hold:

12. Date on which proxy holder will cease to holdvoting rights:

13. Additional information:

14. Contact name:

Alison Callister

15. Contact telephone number:

+44 845 868 7385