Director/PDMR Shareholding - Monthly Share Purchase Plan

As a result of a purchase of shares at 2368.74p by the Fidessa group plcMonthly Share Purchase Plan on 10th December 2014, Mark Ames, a persondischarging managerial responsibilities in Fidessa group plc, became thebeneficial owner of 5 Fidessa group plc ordinary shares. Following thisannouncement his shareholding is 172,794 ordinary shares in the issued sharecapital of the Company, constituting 0.45% of the issued share capital. Inaddition, Mark Ames has been granted matching shares equal to the number ofshares purchased in the transaction. The matching shares will vest in theSeptember in the third year after the award, subject to continued employmentduring the vesting period. The trust for the Fidessa group plc Monthly Share Purchase Plan purchasesshares in the market in order to satisfy certain matching shares under theFidessa group plc Monthly Share Purchase Plan. As a potential beneficiary inthe trust, the executive directors and persons discharging managerialresponsibility are deemed to have a potential beneficial interest in thetrust's shares.