Announcement PDF 605 Page 1 of 1 15 July 2001 Form 605 Corporations Act 2001 Section 671B Notice of ceasing to be a substantial holder To Company Name/Scheme Cogstate Ltd ACN/ARSN 090 975 723 1. Details of substantial holder (1) Name Anacacia Pty Limited ACN/ARSN (if applicable) 159 223 659 The holder ceased to be a substantial holder on 03/11/2025 The previous notice was given to the company on 24/09/2025 The previous notice was dated 24/09/2025 2. Changes in relevant interests Particulars of each change in, or change in the nature of, a relevant interest (2) of the substantial holder or an associate (3) in voting securities of the company or scheme, since the substantial holder was last required to give a substantial holding notice to the company or scheme are as follows: Date of change Person whose relevant interest changed Nature of change (4) Consideration given in relation to change (5) Class (6) and number of securities affected Person's votes affected 2/10/2025 - 3/11/2025 Anacacia Pty Limited (as Trustee for Wattle Fund) On market sale $8,257,322 3,138,236 Ordinary Shaares 3,138,236 3. Changes in association The persons who have become associates (3) of, ceased to be associates of, or have changed the nature of their association (7) with, the substantial holder in relation to voting interests in the company or scheme are as follows: Name and ACN/ARSN (if applicable) Nature of association N/A N/A 4. Addresses The addresses of persons named in this form are as follows: Name Address Anacacia Pty Limited Suite 304, Level 3, 45 Cross Street, Double Bay, NSW 2028 Signature print name Tom Granger capacity Portfolio Manager sign here date 03/11/2025