Holding(s) in Company

For filings with the FCA 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 issuer of existingshares to which voting rights are attached: ii Fidessa Group plc 2. Reason for the notification (please tick the appropriate box or boxes): An acquisition or disposal of voting rights Yes An acquisition or disposal of qualifying financial instruments which mayresult in the acquisition of shares already issued to which voting rightsare attached An acquisition or disposal of instruments with similar economic effect toqualifying financial instruments An event changing the breakdown of voting rights Other (please specify): 3. Full name of person(s) subject to the MFS Investment Managementnotification obligation: iii MFS invest in securities of the issuer on behalf of its4. Full name of shareholder(s) various mutual funds and institutional account(if different from 3.):iv clients. 5. Date of the transaction and date on which thethreshold is crossed or reached: v 26 August 2014 6. Date on which issuer notified: 27 August 2014 7. Threshold(s) that is/are crossed or reached:vi, vii 5.00% 8. Notified details:A: Voting rights attached to shares viii, ixClass/type of shares Situation previous to the Resulting situation after the triggering transaction triggering transaction Number of Number of Number of Number of % of voting Shares Voting rights x Shares voting rights rightsif possible using theISIN CODE Direct Direct Indirect Direct Indirect xi xii GB0007590234 1,838,298 1,838,298 2,000,055 5.27% B: Qualifying Financial Instruments Resulting situation after the triggering transaction Type of financial Expiration Exercise/ Number of voting % of votinginstrument date xiii rights that may be rights Conversion Period xiv acquired if the instrument is exercised/ converted. C: Financial Instruments with similar economic effect to Qualifying FinancialInstruments xv, xvi Resulting situation after the triggering transaction Type of Exercise Expiration Exercise/ Number of voting % of votingfinancial price date xvii Conversion rights instrument rights xix,instrument period xviii refers to xx Nominal Delta Total (A+B+C) Number of voting rights Percentage of voting rights 2,000,055 5.27% 9. Chain of controlled undertakings through which the voting rights and/or thefinancial instruments are effectively held, if applicable: xxi Entity Holding Percentage Held 1,612,561 4.2459% MFS Investment Management MFS Institutional Advisors, Inc. 18,817 0.0495% MFS International Ltd. 93,511 0.2462% MFS International (U.K.) Limited 212,827 0.5604% MFS International Management K.K. 62,339 0.1641 Notifiable Interest 2,000,055 5.2662% Shares Outstanding 37,979,104 Proxy Voting: 10. Name of the proxy holder: N/A 11. Number of voting rights proxy holder will cease to hold: N/A 12. Date on which proxy holder will cease to hold voting rights: N/A 13. Additional information: 14. Contact name: 15. Contact telephone number: