NANOSONICS LIMITED — Director's Dealing 2026

Mar 1, 2026

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 Nanosonics Limited ABN 11 095 076 896

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	Sarah Butler
Date of last notice	N/A

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 Interest
Nature of indirect interest(including registered holder)Note: Provide details of the circumstances giving rise to the relevantinterest.	Indirect interest on behalf of the corporatetrustee for The Muskoka Trust. Ms Butleris a director of the corporate trustee and abeneficiary of The Muskoka Trust
Date of change	25 and 26 February 2026

• 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 prior to change	0
Class	Ordinary Shares
Number acquired	15,000 Ordinary Shares
Number disposed	N/A
Value/ConsiderationNote: If consideration is non-cash, provide details and estimatedvaluation	$50,977.60 (Average approx. $3.40 per share)
No. of securities held after change	15,000 Ordinary Shares
Nature of changeExample: on-market trade, off-market trade, exercise of options, issueof securities under dividend reinvestment plan, participation in buy-back	Ordinary shares purchased on market

• See chapter 19 for defined terms.

Appendix 3Y Page 2

01/01/2011

Appendix 3Y Change of Director’s Interest Notice

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
	Name of registered holder(if issued securities)
	Date of change
	No. and class of securities to whichinterest related prior to changeNote: Details are only required for a contract inrelation to which the interest has changed
	Interest acquired
	Interest disposed
	Value/ConsiderationNote: If consideration is non-cash, provide detailsand an estimated valuation
	Interest after change

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? If so, was prior written clearance provided to allow the trade to proceed during this period? If prior written clearance was provided, on what date was this provided?

Director: Sarah Butler

Date: 2 March 2026

• See chapter 19 for defined terms.

01/01/2011 Appendix 3Y Page 3