IMAGION BIOSYSTEMS LIMITED — Director's Dealing 2026

May 7, 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	Imagion Biosystems Limited
ABN	42 616 305 027

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	Robert Romeo Proulx
Date of last notice	6 January 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	Direct
Nature of indirect interest (including registered holder)
Note: Provide details of the circumstances giving rise to the relevant interest.	N/A
Date of change	1 May 2025

• See chapter 19 for defined terms.
  01/01/2011 Appendix 3Y Page 1

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Appendix 3Y

Change of Director's Interest Notice

| No. of securities held prior to change | 1. 4,470,749 Ordinary Shares
2. 50,000 Unlisted Performance Options, exercisable at $1.12, vesting on 1 May 2022, expiring 1 May 2026.
3. 50,000 Unlisted Performance Options, exercisable at $1.12, vesting on 1 May 2022, expiring 1 May 2027.
4. 50,000 Unlisted Performance Options, exercisable at $1.12, vesting on 1 May 2023, expiring 1 May 2028.
5. 600,000 Unlisted Class A Performance Rights (expiring 22 August 2028), vesting if the company’s share price is at least $0.10 (10 cents) over 20 consecutive trading days.
6. 625,000 Options, exercisable at $0.04 (4 cents), expiring 13 December 2027.
7. 2,000,000 Unlisted Options, exercisable at $0.012 (1.2 cents), expiring 29 May 2030, comprising of:
(a) 400,000 Options vesting on submission of MagSense@ HER2 IND for Phase 2 study (or equivalent regulatory submission for another jurisdiction);
(b) 400,000 Options vesting on first patient dosed in a Phase 2 study;
(c) 1,000,000 Options vesting on completion of a Phase 2 study; and
(d) 200,000 Options vesting on submission of an IND (or like regulatory approval) for a second imaging agent.
8. 1,666,667 Listed Options, exercisable at $0.04 (4 cents), expiring 13 December 2027. |
| --- | --- |
| Class | Unlisted Performance Options |
| Number acquired | N/A |
| Number disposed | 50,000 |
| Value/Consideration
Note: If consideration is non-cash, provide details and estimated valuation | Nil |

• See chapter 19 for defined terms.

Appendix 3Y Page 2

01/01/2011

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Appendix 3Y

Change of Director's Interest Notice

No. of securities held after change

1. 4,470,749 Ordinary Shares
2. 50,000 Unlisted Performance Options, exercisable at $1.12, vesting on 1 May 2022, expiring 1 May 2027.
3. 50,000 Unlisted Performance Options, exercisable at $1.12, vesting on 1 May 2023, expiring 1 May 2028.
4. 600,000 Unlisted Class A Performance Rights (expiring 22 August 2028), vesting if the company's share price is at least $0.10 (10 cents) over 20 consecutive trading days.
5. 625,000 Options, exercisable at $0.04 (4 cents), expiring 13 December 2027.
6. 2,000,000 Unlisted Options, exercisable at $0.012 (1.2 cents), expiring 29 May 2030, comprising of:
   (a) 400,000 Options vesting on submission of MagSense@ HER2 IND for Phase 2 study (or equivalent regulatory submission for another jurisdiction);
   (b) 400,000 Options vesting on first patient dosed in a Phase 2 study;
   (c) 1,000,000 Options vesting on completion of a Phase 2 study; and
   (d) 200,000 Options vesting on submission of an IND (or like regulatory approval) for a second imaging agent.
7. 1,666,667 Listed Options, exercisable at $0.04 (4 cents), expiring 13 December 2027.

Nature of change

Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back

Expiry of Unlisted Performance Options

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

• See chapter 19 for defined terms.

01/01/2011 Appendix 3Y Page 3

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Appendix 3Y

Change of Director's Interest Notice

Part 3 – +Closed period

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
Were the interests in the securities or contracts detailed above traded during a +closed period where prior written clearance was required?	N/A
---	---
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.

Appendix 3Y Page 4

01/01/2011