IRESS LIMITED — Director's Dealing 2012

May 6, 2012

7 May 2012

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The Manager Company Announcements Office Australian Stock Exchange Exchange Centre 20 Bridge Street SYDNEY NSW 2000

ELECTRONIC LODGEMENT

Dear Sir or Madam

Change in Director’s Interest Notice - Appendix 3Y – Jenny Seabrook

Please find attached an Appendix 3Y Notice relating to an on-market trade undertaken on 4 May 2012 by Jenny Seabrook, Director of the Company.

Yours sincerely,

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Peter Ferguson

Company Secretary

IRESS Market Technology Ltd A.B.N. 47 060 313 359

Corporate Office: Level 18, 385 Bourke Street Melbourne Vic Australia Tel: (03) 9018 5800 Fax (03) 9018 5844

Sydney Office: Suite 4, 14 Martin Place Sydney NSW Australia Tel: (02) 8273 7000 Fax: (02) 8273 7003

www.iress.com.au

Appendix 3Y Change of Director’s Interest Notice

Rule 3.19A.2

Appendix 3Y

Change of Director’s Interest Notice

Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public.

Introduced 30/09/01 Amended 01/01/11

Name of entity IRESS Market Technology Limited ABN 47 060 313 359

We (the entity) give ASX the following information under listing rule 3.19A.2 and as agent for the director for the purposes of section 205G of the Corporations Act.

Name of Director Jennifer Anne Seabrook

Date of last notice 19 February 2010

Part 1 - Change of director’s relevant interests in securities

In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust

Note: In the case of a company, interests which come within paragraph (i) of the definition of “notifiable interest of a director” should be disclosed in this part.

Direct or indirect interest		Indirect
Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.		Indirect through JW and JA Seabrook ATF Seabrook Superannuation Fund
Date of change		4 May 2012
No. of securities held prior to change		Ordinary Shares _Direct:_0 _Indirect:_20,000
Class		Ordinary
Number acquired		Ordinary Shares _Direct:_Nil _Indirect:_10,000
Number disposed		Nil
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation		10,000 @ $6.24

• See chapter 19 for defined terms.

01/01/2011 Appendix 3Y Page 1

Appendix 3Y Change of Director’s Interest Notice

No. of securities held after change		Ordinary Shares _Direct:_0 _Indirect:_30,000
Nature of change Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back		On market trades

Part 2 – Change of director’s interests in contracts

Note: In the case of a company, interests which come within paragraph (ii) of the definition of “notifiable interest of a director” should be disclosed in this part.

Detail of contract	N/A
Nature of interest	N/A
Name of registered holder (if issued securities)	N/A
Date of change	N/A
No. and class of securities to which interest related prior to change Note: Details are only required for a contract in relation to which the interest has changed	N/A
Interest acquired	N/A
Interest disposed	N/A
Value/Consideration Note: If consideration is non-cash, provide details and an estimated valuation	N/A
Interest after change	N/A

Part 3 –[+] Closed period

Part 3 –+Closed period
Were the interests in the securities or contracts detailed above traded during a+closed period where prior written clearance was required?	No.* See note below
If so, was prior written clearance provided to allow the trade to proceed during this period?	N/A
If prior written clearance was provided, on what date was this provided?	N/A
*Note: These transactions were completed in accordance with Company procedures regarding changes in Directors’ interests in securities. They occurred during an open trading window, but nevertheless withprior notice to the Chairman and CompanySecretary.

• See chapter 19 for defined terms.

Appendix 3Y Page 2

01/01/2011