Holding(s) in Company

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARESi
 
1. Identity of the issuer or the underlying      Sopheon Plc
issuer of existing shares to which voting 
rights are attached: ii

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 the                      Myrtledare Corp
notification obligation: iii
                                                             Rivomore Limited
                                                     (related family holdings)


4. Full name of shareholder(s)                        Rock (Nominees) Limited
(if different from 3.):iv                                     Euroclear 90998


5. Date of the transaction and date on                      6th December 2012
which the threshold is crossed or
reached: v

6. Date on which issuer notified:                           7th December 2012

7. Threshold(s) that is/are crossed or                                    11%
reached: vi, vii

8. Notified details:

A: Voting rights attached to shares viii, ix
Class/type of    Situation previous  Resulting situation after the triggering transaction
shares           to the triggering
                 transaction
 
if possible
using
the ISIN CODE
                 Number    Number    Number      Number of voting       % of voting rights x
                 of        of        of shares   rights
                 Shares    Voting
                           Rights
                                     Direct      Direct xi   Indirect   Direct     Indirect
                                                             xii
Rivomore Limited 9,691,260 9,691,260 13,191,260  13,191,260             9.061%
 
                 2,000,000 2,000,000 3,000,000   3,000,000              2.061%
 
Myrtledare Corp
 
B: Qualifying Financial Instruments
Resulting situation after the triggering transaction

Type of financial Expiration Exercise/          Number of voting    % of voting
instrument        date xiii  Conversion Period  rights that may be  rights
                             xiv                acquired if the
                                                instrument is
                                                exercised/
                                                converted.
 
C: Financial Instruments with similar economic effect to Qualifying Financial Instruments
xv, xvi

Resulting situation after the triggering transaction
Type of          Exercise    Expiration  Exercise/  Number of voting % of voting rights
financial        price       date xvii   Conversion rights           xix, xx
instrument                               period     instrument
                                         xviii      refers to
 
Convertible Loan 5p          31 January  Until 31                    Nominal     Delta
Stock                        2015        January
                                         2015       12,800,000
                                                                     8.082%      7.183%
 
Total (A+B+C)
Number of voting rights           Percentage of voting rights
28,991,260                        18.305%


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

10. Name of the proxy holder:

11. Number of voting rights proxy holder will cease
to hold:

12. Date on which proxy holder will cease to hold
voting rights:
 
13. Additional information:

14. Contact name:                                    Alison Callister

15. Contact telephone number:                         [phone]