Company: RDPTF
Filing Date: 2025-10-07
Form Type: 6-K
Source: 0001213900-25-096794
Chunk: 1

Company: Radiopharm Theranostics Ltd
Filing Date: 2025-10-07
Form: 6-K
Chunk 1
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SIGNATURE</div>

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.

| Date: October 7, 2025 | RADIOPHARM THERANOSTICS LIMITED 
 By:                             | /s/ Phillip Hains |
|:----------------------|:--------------------------------|:------------------|
|                       |                                 | Phillip Hains     |
|                       |                                 | Company Secretary |

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