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RADX 6-K

Radiopharm Theranostics Ltd (RADX)

6-K 2025-02-25 For: 2025-02-25
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Added on April 08, 2026

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16 UNDER

THE SECURITIES EXCHANGE ACT OF 1934

For the Month of February 2025

Commission File Number: 001-41621

RADIOPHARM THERANOSTICS LIMITED

(Name of Registrant)

Level 3, 62 Lygon Street, Carlton South,Victoria, 3053, Australia

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ☒       Form 40-F ☐

Indicate by check mark whether by furnishing the information contained in this Form, the registrant is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes ☐       No ☒

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82-

RADIOPHARM THERANOSTICS LIMITED

EXPLANATORY NOTE

Radiopharm Theranostics Limited (the “Company”) published two announcements (the “Public Notice”) to the Australian Securities Exchange on February 25, 2025 titled:

- “Change of Director’s<br> Interest Notice (IT)”
- “Notification of cessation<br> of securities – RAD”

A copy of the Public Notice is attached as an exhibit to this report on Form 6-K.

This report on Form 6-K (including the exhibit hereto) shall not be deemed to be “filed” for purposes of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) and shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such filing.

1

EXHIBITS

Exhibit <br><br>Number Description
99.1 Change of Director’s Interest Notice (IT)
99.2 Notification of cessation of securities – RAD
2

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

RADIOPHARM THERANOSTICS LIMITED
Date: February 25, 2025 By: /s/ Phillip Hains
Phillip Hains
Company Secretary

3

Exhibit 99.1

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.


Introduced30/9/2001.         Amended 01/01/11

Nameof Entity: Radiopharm<br>Theranostics Limited (ASX: RAD)
ABN: 57<br>647 877 889

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<br>Director: Ian Turner
Date of Last Notice: 18 December 2024

Part 1 - Changeof director’s relevant interests in securities


In the case of a trust, thisincludes 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
Nature of indirect interest (including registered holder) <br><br>Note: Provide details of the circumstances giving rise to the relevant interest. Superannuation<br>fund
Date of change 19 February 2025
No. of securities held prior to change Shares Options
--- --- --- ---
Direct 2,530,595 18,167,928
Indirect 2,424,697 820,422
Total 4,955,292 18,988,350
Class Unlisted Options
--- ---
Number acquired Shares Options
--- --- --- ---
Direct - -
Indirect 1,300,000 -
**** Total 1,300,000 -
+ See chapter 19 for defined terms.
--- ---
01/01/2011 Appendix 3Y Page 1

Appendix 3Y

Change of Director’s Interest Notice

Number disposed Shares Options
Direct - -
Indirect - -
Total - -
Value/Consideration<br><br> <br>Note:<br><br> <br>If consideration<br> is non-cash, provide details and estimated valuation $0.026 ea.
--- ---
No. of securities held after change Shares Options
--- --- --- ---
Direct 2,530,595 18,167,928
Indirect 3,724,697 820,422
Total 6,255,292 18,988,350
Nature of change<br><br> <br>Example:<br><br> <br>on-market trade, off-market trade, exercise of options, issue of securities<br>under dividend reinvestment plan, participation in buy-back On market purchase
--- ---

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<br><br> <br>(if issued securities) N/A
Date of change N/A
No. and class of securities to which interest related prior to change<br><br> <br>Note: Details<br> 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<br><br> <br>Note: If consideration is non-cash, provide details<br> 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


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

Exhibit99.2

Appendix<br>3H - Notification of cessation of securities
Announcement Summary
---

Entity name

RADIOPHARM THERANOSTICS LIMITED

Announcement Type

New announcement

Date of this announcement

Tuesday February 25, 2025

Details of +securities that have ceased

ASX +security code Security description Number of +securities that  have ceased The +securities have  ceased due to Date of  cessation
RADAAA OPTION EXPIRING  24-FEB-2025 EX $0.05 149,925,040 Expiry of option or other convertible security without  exercise or conversion 24/02/2025

Refer to next page for full details of the announcement

| Appendix 3H - Notification of cessation of securities | 1 / 4 |

| --- | --- | | Appendix<br>3H - Notification of cessation of securities | | --- | | Part 1 - Announcement Details | | --- | | 1.1 | Name of +Entity | | --- | --- |

RADIOPHARM THERANOSTICS LIMITED

We (the entity named above) provide the following information about our issued capital.

1.2 Registered Number Type Registration Number
ACN 647877889
1.3 ASX issuer code
RAD
1.4 The announcement is
New announcement
1.5 Date of this announcement
25/2/2025
| Appendix 3H - Notification of cessation of securities | 2 / 4 |

| --- | --- | | Appendix<br>3H - Notification of cessation of securities | | --- | | Part 2 - Details of +equity securities or +debt securities that have ceased | | --- |

ASX +Security Code and Description

RADAAA : OPTION EXPIRING 24-FEB-2025 EX $0.05

Unquoted +equity securities that have ceased Number of securities that have ceased

149,925,040


Reasonfor cessation

Expiry of option or other convertible security without exercise or conversion

Date of cessation Is the entity paying any consideration for the cessation?
24/2/2025 No

Any other information the entity wishes to notify to ASX about the cessation?

| Appendix 3H - Notification of cessation of securities | 3 / 4 |

| --- | --- | | Appendix<br>3H - Notification of cessation of securities | | --- | | Part 3 - Issued capital following changes | | --- |

Following the cessation of the +securities the subject of this notification, the issued capital of the entity will comprise:

The figures in parts 3.1 and 3.2 below are automatically generated and may not reflect the entity's current issued capital if other Appendix 2A, Appendix 3G or Appendix 3H forms are currently with ASX for processing.

3.1 Quoted +equity securities and +debt securities (total number of each +class of +securities quoted on ASX)

ASX<br> +security code and description Total number of <br><br> +securities <br><br> on issue
RADO : OPTION<br> EXPIRING 30-NOV-2026 79,352,040
RAD : ORDINARY FULLY PAID 2,333,980,142
RADOA : OPTION EXPIRING 24-AUG-2026 818,890,534
3.2 Unquoted +equity securities (total number of each +class of +equity securities issued but not quoted on ASX)
--- ---

ASX +security code and description
RADAK : OPTION EXPIRING 01-JUN-2027 EX 0.60 1,666,500
RADAE : OPTION EXPIRING 25-NOV-2025 RESTRICTED 5,700,006
RADAN : OPTION EXPIRING VARIOUS DATES EX VARIOUS PRICES 209,316,866
RADAJ : OPTION EXPIRING 01-JUL-2027 EX 0.17 13,137,976
RADAF : OPTION EXPIRING 25-NOV-2026 RESTRICTED 8,666,678
RADAG : OPTION EXPIRING 25-NOV-2026 EX 0.60 5,066,672
RADAH : OPTION EXPIRING 22-DEC-2025 EX 0.60 400,000
RADAI : OPTION EXPIRING 27-MAY-2027 EX 0.60 740,000
RADAP : OPTION EXPIRING 24-APR-2028 EX 0.09 8,955,224
RADAAA : OPTION EXPIRING 24-FEB-2025 EX 0.05 0

All values are in US Dollars.

Note: the figures stated in the tables above are used to calculate the total market capitalisation of the entity published by ASX from time to time. The table will not include those classes of +securities that have ceased or lapsed in their entirety in ASX records before the announcement date described in Q1.5, even if the entity has advised ASX of a change to that class of +security in Part 2 of this form.

Appendix 3H - Notification of cessation of securities 4 / 4