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6-K

Radiopharm Theranostics Ltd (RADX)

6-K 2025-06-12 For: 2025-06-12
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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 June 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 June 12, 2025 titled:

- “Application for quotation of securities - RAD”
- “Notice Under Section 708A”

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
Number Description
99.1 Application for quotation of securities – RAD
99.2 Notice Under Section 708A
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: June 12, 2025 By: /s/ Phillip Hains
Phillip Hains
Company Secretary

3

Exhibit 99.1

Appendix 2A - Application for quotation of securities
Announcement Summary
--- --- --- --- ---
Entity name
RADIOPHARM THERANOSTICS LIMITED
Announcement Type
New announcement
Date of this announcement
Wednesday June 11, 2025
The +securities to be quoted are:
+Securities issued as part of a transaction or transactions previously announced to the market in an Appendix 3B
Total number of +securities to be quoted
ASX +security code Security description Number of +securities to be quoted Issue date
RAD ORDINARY FULLY PAID 30,969,360 11/06/2025
Refer to next page for full details of the announcement
Appendix 2A - Application for quotation of securities 1 / 6
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Appendix 2A - Application for quotation of securities
---
Part 1 - Entity and announcement details
---
1.1 Name of entity
--- ---

RADIOPHARM THERANOSTICS LIMITED

We (the entity named above) apply for +quotation of the following +securities and agree to the matters set out in Appendix 2A of the ASX Listing Rules.

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

11/6/2025

Appendix 2A - Application for quotation of securities 2 / 6
Appendix 2A - Application for quotation of securities
---
Part 2 - Type of Issue
---
2.1 The +securities to be quoted are:
--- ---

+Securities issued as part of a transaction or transactions previously announced to the market in an Appendix 3B

Previous Appendix 3B details:
Announcement Date and Time Announcement Title Selected Appendix 3B to submit quotation request
10-Jun-2025 17:35 New - Proposed issue of securities - RAD A placement or other type of issue

2.3a.2 Are there any further issues of +securities yet to take place to complete the transaction(s) referred to in the Appendix 3B?

No

Appendix 2A - Application for quotation of securities 3 / 6
Appendix 2A - Application for quotation of securities
---
Part 3A - number and type of +securities to be quoted where issue has previously been notified to ASX in an Appendix 3B
---

Placement Details

ASX +security code and description

RAD : ORDINARY FULLY PAID

Issue date

11/6/2025

Distribution Schedule

Provide a distribution schedule for the new +securities according to the categories set out in the left hand column - including the number of recipients and the total percentage of the new +securities held by the recipients in each category.

Number of +securities held Number of holders Total percentage of +securities held <br><br>For example, to enter a value of 50% please input as 50.00
1 - 1,000 %
1,001 - 5,000 %
5,001 - 10,000 %
10,001 - 100,000 %
100,001 and over %
Appendix 2A - Application for quotation of securities 4 / 6
--- ---
Appendix 2A - Application for quotation of securities
---

Issue details

Number of +securities to be quoted

30,969,360

Are the +securities being issued for a cash consideration?

No

Please describe the consideration being provided for the +securities

Milestone payment associated with announcement dated 4 June 2025 "RAD Doses 1st Patient in Therapeutic Trial of 177Lu-RAD202" and as described in Prospectus dated 14 October 2021.

Please provide an estimate (in AUD) of the value of the consideration being provided per +security for the +securities to be quoted

0.025000

Any other information the entity wishes to provide about the +securities to be quoted

Appendix 2A - Application for quotation of securities 5 / 6
Appendix 2A - Application for quotation of securities
---
Part 4 - Issued capital following quotation
---

Following the quotation of the +securities the subject of this application, the issued capital of the entity will comprise:

The figures in parts 4.1 and 4.2 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.


4.1 Quoted +securities (total number of each +class of +securities quoted on ASX following the +quotation of the +securities subject of this application)
ASX +security code and description Total number of +securities on issue
--- ---
RADO : OPTION EXPIRING 30-NOV-2026 79,352,040
RAD : ORDINARY FULLY PAID 2,364,949,502
RADOA : OPTION EXPIRING 24-AUG-2026 818,890,534
4.2 Unquoted +securities (total number of each +class of +securities issued but not quoted on ASX)
--- ---
ASX +security code and description Total number of<br><br> <br>+securities on issue
--- ---
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 209,716,866
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
Appendix 2A - Application for quotation of securities 6 / 6
--- ---

Exhibit99.2


ASX ANNOUNCEMENT 12 June 2025

Notice Under Section 708A(5) of the CorporationsAct 2001


This notice is given by Radiopharm Theranostics Limited (ASX:RAD) (‘RAD’ or the ‘Company’) under section 708A(5)(e) of the Corporations Act 2001 (the ‘Corporations Act’).

Type Shares
Class/description Ordinary Fully Paid
ASX code RAD
Date of issue 11 June 2025
Number issued 30,969,360

The Company gives notice under section 708A(5)(e) of the Corporations that:

1. the Company issued the Shares without disclosure under Part 6D.2 of the Corporations Act;
2. as at the date of this notice the Company has complied with:
--- ---
(i) the provisions of Chapter 2M of the Corporations Act as they apply to the Company; and
--- ---
(ii) sections 674 and 674A of the Corporations Act; and
--- ---
3. as at the date of this notice, there is no information to be disclosed which is ‘excluded information’<br>(as defined in sections 708A(7) and 708A(8) of the Corporations Act) which is required to be disclosed by the Company.
--- ---

Phillip Hains

Joint Company Secretary

Radiopharm Theranostics LimitedSuite 1, Level 3, 62 Lygon Street, Carlton South VIC 3053 AustraliaABN: 57 647 877 889