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 issuerof existing shares to which voting rights are Fidessa Group PLCattached:ii 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 may result Noin the acquisition of shares already issued to which voting rights are attached An acquisition or disposal of instruments with similar economic effect to Noqualifying financial instruments An event changing the breakdown of voting rights No Other (please specify): No 3. Full name of person(s) subject to the Kames Capitalnotification obligation:iii 4. Full name of shareholder(s) (if different from 3.):iv 5. Date of the transaction and date on 29/10/2014which the threshold is crossed orreached: v 6. Date on which issuer notified: 31/10/2014 7. Threshold(s) that is/are crossed or 7%reached: vi, vii 8. Notified details: A: Voting rights attached to shares viii, ix Class/type Situation previous Resulting situation after the triggering transactionof to the triggeringshares transaction if possible Number Number Number Number of voting % of voting rightsusing of of of shares rights xthe ISIN Shares VotingCODE Rights Direct Direct xi Indirect xii Direct Indirect GB0007590234 2,719,948 2,719,948 2,110,253 2,110,253 518,842 5.53% 1.36% B: Qualifying Financial Instruments Resulting situation after the triggering transaction Type of Expiration Exercise/ Number of voting % of votingfinancial date xiii Conversion Period xiv rights that may be rightsinstrument 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 price Expiration Exercise/ Number of voting % of voting rightsfinancial date xvii Conversion rights instrument xix, xxinstrument period xviii refers to Nominal Delta 1 Total (A+B+C) Number of voting rights Percentage of voting rights 2,629,095 6.89% 9. Chain of controlled undertakings through which the voting rights and/or thefinancial instruments are effectively held, if applicable: xxi Kames Capital:- Kames Capital Plc Kames Capital Management Ltd Kames Capital ICVC Kames Capital VCIC Proxy Voting: 10. Name of the proxy holder: Kames Capital 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: IMS Supervisor / Manager 15. Contact telephone number: 0131 549 3706