Fidessa Group Regulatory News (FDSA)

FOR IMMEDIATE RELEASE

3 August 2018

RECOMMENDED CASH OFFER

for

FIDESSA GROUP PLC ("FIDESSA")

by

ION CAPITAL UK LIMITED ("ION BIDCO")

BOARD CHANGES

1 Introduction

On 20 April 2018, the boards of Fidessa and ION Bidco announced that they had reached an agreement on the terms of a recommended all cash offer (the "Offer") to be made by ION Bidco for the entire issued and to be issued share capital of Fidessa. The full terms of, and conditions to, the Offer and the procedures for acceptance were set out in the offer document dated 18 May 2018 (the "Offer Document").

On 19 June 2018, ION Bidco announced that the Offer had been declared unconditional as to acceptances.

On 3 August 2018, ION Bidco announced that the Offer has become unconditional in all respects.

Defined terms used but not defined in this announcement have the same meanings as set out in the Offer Document.

2 Board changes

Fidessa announces changes to the composition of its board as a result of the Offer becoming unconditional in all respects. John Hamer, Richard Longdon, Ron Mackintosh, John Worby, Ken Archer and Ishbel Macpherson have resigned as directors of Fidessa, in each case with effect from 3 August 2018.

Enquiries:

A copy of this Announcement will be available, subject to certain restrictions relating to persons resident in Restricted Jurisdictions, on https://iongroup.com/ion-news/ and https://www.fidessa.com/offers-for-fidessa by no later than 12 noon (London time) on the business day following the date of this announcement.

The contents of the websites referred to in this announcement are not incorporated into and do not form part of this announcement.