WHITEHAWK LIMITED — Director's Dealing 2025

Aug 10, 2025

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FOR IMMEDIATE RELEASE 11 August 2025

AMENDED APPENDIX 3Y

Perth, WA and Alexandria, VA – WhiteHawk Limited (ASX: WHK) ("WhiteHawk" or "the Company"), the first global online cybersecurity exchange enabling businesses to mitigate cyber risks effectively, advises that the Company attaches an amended Change of Director’s Interest (Appendix 3Y) for Mr Giuseppe Porcelli. The original documents lodged with ASX on 4 April 2025 and 24 April 2025 respectively, did not include the shares and options that Mr Porcelli has an indirect interest in due to an administrative oversight.

The Company and its directors are aware of their obligations under ASX Listing Rules 3.19A and 3.19B. The Company believes its current policies and procedures regarding its disclosure obligations are adequate and no changes are necessary as a result of these circumstances.

An updated Appendix 3Y for Mr Giuseppe accompanies this announcement.

-ENDS-

Authorized for release by the Board of Directors.

For more information:

Media inquiries (USA) Investor inquiries (AUS) Institutional Inquiries WhiteHawk WhiteHawk Viaticus Capital Marketing & Communications Company Secretary Principal Morgan Goodale Mindy Ku Gavin Rezos publicrelations@whitehawk.com investors@whitehawk.com grezos@viaticuscapital.com +1 571 236-8526 +61 433 775510 +447447560303

About WhiteHawk LTD (WHK)

Launched with financing in 2018, WhiteHawk developed the first cloud, AI/ML based cyber risk monitoring, prioritization and mitigation online cybersecurity exchange, democratizing access for all companies and organizations to address their Digital Age Risks and those of their suppliers/vendors, continuously and cost-effectively. For more information, visit www.whitehawk.com.

WhiteHawk Limited Level 28 140 St George Tce Perth WA 6000 Tel : +61 8 6311 4636, Fax : +61 8 6311 4661 ABN: 97 620 459 823 www.whitehawk.com

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	WhiteHawk Limited
ABN	97 620 459 823

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.

section 205G of the Corporations Act.
Name of Director	Giuseppe Porcelli
Date of last notice	24 April 2025

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	(1) Direct (2) Indirect (3) Indirect
Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.	(2) Mr Alfonso Porcelli (a child of Mr Giuseppe Porcelli) (3) Mr Silvio Porcelli (a child of Mr Giuseppe Porcelli)
Date of change	(a) 4 April 2025 (b) 4 April 2025 (c) 9 April 2025 (d) 24 April 2025
No. of securities held prior to change	(1) 10,000,000 Ordinary shares
Class	(a) to (c) Ordinary shares (d) Listed options
Number acquired	(a) (1) 25,000,000 (2) 7,500,000 (b) (3) 57,768 (c) (3) 88,235 (d) (1) 11,666,666 (2) 2,500,000
Number disposed	Nil

• See chapter 19 for defined terms.

01/01/2011 Appendix 3Y Page 1

Appendix 3Y Change of Director’s Interest Notice

Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation	(a) (1) A$250,000 (2) A$75,000 (d) The options were issued as free-attaching options to the Placement announced on 26 November 2024. Refer to the Option Prospectus dated 17 April 2025 for further information.
No. of securities held after change	(1) 35,000,000 Ordinary shares 11,666,666 Listed options (2) 7,500,000 Ordinary shares 2,500,000 Listed options (3) 146,003 Ordinary shares
Nature of change Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back	(a) Participation in Placement based on previously allocated Tranche 2 shares. Refer to ASX announcement dated 26 November 2024 for further details. (b) On-market trade. (c) On-market trade. (d) Issue of free-attaching options pursuant to participation in the Placement announced on 26 November 2024.

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

• See chapter 19 for defined terms.

Appendix 3Y Page 2

01/01/2011

Appendix 3Y Change of Director’s Interest Notice

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
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

Date: 11 August 2025

• See chapter 19 for defined terms.

01/01/2011 Appendix 3Y Page 3