ORIGIN ENERGY LIMITED — Director's Dealing 2024

Apr 18, 2024

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To Company Announcements Office Company ASX Limited From Helen Hardy Subject Appendix 3Y	Facsimile1300 135 638
	Date 19 April 2024
	Pages 4

Please find attached a release on the above subject.

The sale of shares by Mr Calabria was primarily to cover personal tax obligations arising from the vesting of Origin equity incentives. Mr Calabria retains a significant interest in the Company which is well above his Minimum Shareholding Requirement.

The trade was undertaken in accordance with the Company’s Dealing in Securities Policy.

Regards

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Authorised for lodgement by: Helen Hardy Company Secretary

02 8345 5000

Origin Energy Limited ABN 30 000 051 696 • Level 32, Tower 1, 100 Barangaroo Avenue, Barangaroo, NSW 2000 GPO Box 5376, Sydney NSW 2001 • Telephone (02) 8345 5000 • Facsimile (02) 9252 9244• www.originenergy.com.au

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	ORIGIN ENERGY LIMITED
ABN	30 000 051 696

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	Frank Calabria
Date of last notice	6 March 2024

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	Direct and indirect interests
Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.	Fully Paid Ordinary Shares held directly by Mr Frank Calabria and indirectly through Cluesfam Pty Ltd .
Date of change	12 April 2024, 15 April 2024 and 17 April 2024.
No. of securities held prior to change	561,708 Fully Paid Ordinary Shares held directly 1,061,726 Fully Paid Ordinary Shares held indirectly 508,247 Performance Share Rights held directly 557,243 Restricted Share Rights held directly
Class	Fully Paid Ordinary Shares
Number acquired	Nil
Number disposed	211,000
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation	Sale of 211,000 Fully Paid Ordinary Shares at an average price of $9.60

• 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 after change	371,708 Fully Paid Ordinary Shares held directly 1,040,726 Fully Paid Ordinary Shares held indirectly 508,247 Performance Share Rights held directly 557,243 Restricted Share Rights held directly
Nature of change Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy- back	On-market sale of Fully Paid Ordinary Shares.

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

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Appendix 3Y Change of Director’s Interest Notice

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

• See chapter 19 for defined terms.

01/01/2011

Appendix 3Y Page 3