DATA#3 LIMITED DISCLOSUREInsider Transactions (Form 3/4/5)

Change of Director's Interest Notice

Appendix 3Y Change of Director’s Interest Notice + See chapter 19 for defined terms. 01/01/2011 Appendix 3Y Page 1 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: Data#3 Limited ABN: 31 010 545 267 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 Laurence Christopher Baynham Date of last notice 4/05/2026 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. Ordinary shares held by Mr L. Baynham and Mrs K. Baynham as trustees for the Baynham Family Trust Date of change 26/08/2026 No. of securities held prior to change 75,360 ordinary DTL shares held by Laurence Baynham 152,475 ordinary DTL shares held by L. Baynham and K. Baynham as trustees for the LK Super Fund 55,882 ordinary DTL shares held by L Baynham and K Baynham as trustees for the Baynham Family Trust Class Ordinary shares Number acquired Number disposed 20,000 Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation $221,890.00 For personal use only Appendix 3Y Change of Director’s Interest Notice + See chapter 19 for defined terms. Appendix 3Y Page 2 01/01/2011 No. of securities held after change 75,360 ordinary DTL shares held by Laurence Baynham 152,475 ordinary DTL shares held by L. Baynham and K. Baynham as trustees for the LK Super Fund 35,882 ordinary DTL shares held by L Baynham and K Baynham as trustees for the Baynham Family Trust Nature of change Example: on-market trade, off-market trade, e