COGSTATE LTD — Director's Dealing 2009

May 27, 2009

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CogState Ltd ABN 80 090 975 723 Level 7 21 Victoria Street Melbourne VIC 3000 AUSTRALIA Telephone +61 3 9664 1300 Facsimile +61 3 9664 1301 www.cogstate.com

28 May 2008

Company Announcements Manager Australian Securities Exchange 20 Bridge Street SYDNEY NSW

Dear Sir/Madam,

Re: DUPLICATED LODGEMENT OF APPENDIX 3Y – CHANGE OF DIRECTORS INTEREST NOTICE

We note that an Appendix 3Y – Change of Directors Interest Notice e-lodged by this Company with the Australian Securities Exchange this afternoon was inadvertently e-lodged in error a second time shortly thereafter.

Therefore please disregard the second e-lodgement of that document.

Yours faithfully,

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TONY PANTHER Company Secretary