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    SEC Form SCHEDULE 13G filed by Radiopharm Theranostics Limited

    1/8/26 6:06:25 AM ET
    $RADX
    Biotechnology: Pharmaceutical Preparations
    Health Care
    Get the next $RADX alert in real time by email



    SECURITIES AND EXCHANGE COMMISSION
    Washington, D.C. 20549


    SCHEDULE 13G


    UNDER THE SECURITIES EXCHANGE ACT OF 1934
    Radiopharm Theranostics Limited

    (Name of Issuer)


    Ordinary Shares, no par value and American Depositary Shares, each representing three hundred Ordinary Shares, no par value

    (Title of Class of Securities)


    75041J101

    (CUSIP Number)


    12/31/2025

    (Date of Event Which Requires Filing of this Statement)


    Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
    Checkbox checked   Rule 13d-1(b)
    Checkbox not checked   Rule 13d-1(c)
    Checkbox not checked   Rule 13d-1(d)






    SCHEDULE 13G

    CUSIP No.
    75041J101


    1Names of Reporting Persons

    Regal Partners Holdings Pty Limited
    2Check the appropriate box if a member of a Group (see instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3Sec Use Only
    4Citizenship or Place of Organization

    AUSTRALIA
    Number of Shares Beneficially Owned by Each Reporting Person With:
    5Sole Voting Power

    0.00
    6Shared Voting Power

    320,694,680.00
    7Sole Dispositive Power

    0.00
    8Shared Dispositive Power

    320,694,680.00
    9Aggregate Amount Beneficially Owned by Each Reporting Person

    320,694,680.00
    10Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

    Checkbox not checked
    11Percent of class represented by amount in row (9)

    9.05 %
    12Type of Reporting Person (See Instructions)

    FI

    Comment for Type of Reporting Person:  The number of shares beneficially owned includes: (i) 293,421,980 Ordinary Shares, no par value ("Ordinary Shares") and (ii) 90,909 American Depositary Shares, each representing three hundred Ordinary Shares.


    SCHEDULE 13G

    CUSIP No.
    75041J101


    1Names of Reporting Persons

    Regal Partners Funds Management Pty Limited
    2Check the appropriate box if a member of a Group (see instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3Sec Use Only
    4Citizenship or Place of Organization

    AUSTRALIA
    Number of Shares Beneficially Owned by Each Reporting Person With:
    5Sole Voting Power

    0.00
    6Shared Voting Power

    320,694,680.00
    7Sole Dispositive Power

    0.00
    8Shared Dispositive Power

    320,694,680.00
    9Aggregate Amount Beneficially Owned by Each Reporting Person

    320,694,680.00
    10Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

    Checkbox not checked
    11Percent of class represented by amount in row (9)

    9.05 %
    12Type of Reporting Person (See Instructions)

    FI

    Comment for Type of Reporting Person:  The number of shares beneficially owned includes: (i) 293,421,980 Ordinary Shares, no par value ("Ordinary Shares") and (ii) 90,909 American Depositary Shares, each representing three hundred Ordinary Shares.


    SCHEDULE 13G

    CUSIP No.
    75041J101


    1Names of Reporting Persons

    Regal Partners Limited
    2Check the appropriate box if a member of a Group (see instructions)

    Checkbox not checked  (a)
    Checkbox not checked  (b)
    3Sec Use Only
    4Citizenship or Place of Organization

    AUSTRALIA
    Number of Shares Beneficially Owned by Each Reporting Person With:
    5Sole Voting Power

    0.00
    6Shared Voting Power

    320,694,680.00
    7Sole Dispositive Power

    0.00
    8Shared Dispositive Power

    320,694,680.00
    9Aggregate Amount Beneficially Owned by Each Reporting Person

    320,694,680.00
    10Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

    Checkbox not checked
    11Percent of class represented by amount in row (9)

    9.05 %
    12Type of Reporting Person (See Instructions)

    FI

    Comment for Type of Reporting Person:  The number of shares beneficially owned includes: (i) 293,421,980 Ordinary Shares, no par value ("Ordinary Shares") and (ii) 90,909 American Depositary Shares, each representing three hundred Ordinary Shares.


    SCHEDULE 13G

    Item 1. 
    (a)Name of issuer:

    Radiopharm Theranostics Limited
    (b)Address of issuer's principal executive offices:

    Level 3, 62 Lygon Street, Carlton Vic, Australia, 3053
    Item 2. 
    (a)Name of person filing:

    Regal Partners Holdings Pty Limited - CIK: 0001569369 Regal Partners Funds Management Pty Limited - CIK: 0002099534 Regal Partners Limited - CIK: 0001577774
    (b)Address or principal business office or, if none, residence:

    Level 46, Gateway, 1 Macquarie Place, Sydney NSW 2000
    (c)Citizenship:

    Australian
    (d)Title of class of securities:

    Ordinary Shares, no par value and American Depositary Shares, each representing three hundred Ordinary Shares, no par value
    (e)CUSIP No.:

    75041J101
    Item 3.If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
    (a)Checkbox not checked   Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
    (b)Checkbox not checked   Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
    (c)Checkbox not checked   Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
    (d)Checkbox not checked   Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
    (e)Checkbox checked   An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
    (f)Checkbox not checked   An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
    (g)Checkbox checked   A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
    (h)Checkbox not checked   A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
    (i)Checkbox not checked   A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
    (j)Checkbox checked   A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
           please specify the type of institution:
    (k)Checkbox not checked   Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
     
    FI
    Item 4.Ownership
    (a)Amount beneficially owned:

    320,694,680
    (b)Percent of class:

    9.05  %
    (c)Number of shares as to which the person has:
     (i) Sole power to vote or to direct the vote:

    0

     (ii) Shared power to vote or to direct the vote:

    320,694,680

     (iii) Sole power to dispose or to direct the disposition of:

    0

     (iv) Shared power to dispose or to direct the disposition of:

    320,694,680

    Item 5.Ownership of 5 Percent or Less of a Class.
     
    Not Applicable
    Item 6.Ownership of more than 5 Percent on Behalf of Another Person.
     
    Not Applicable
    Item 7.Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
     
    Not Applicable
    Item 8.Identification and Classification of Members of the Group.
     
    Not Applicable
    Item 9.Notice of Dissolution of Group.
     
    Not Applicable

    Item 10.Certifications:
     
    By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

        SIGNATURE 
     
    After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

     
    Regal Partners Holdings Pty Limited
     
    Signature:Ian Cameron
    Name/Title:Director
    Date:01/07/2026
     
    Regal Partners Funds Management Pty Limited
     
    Signature:Ian Cameron
    Name/Title:Director
    Date:01/07/2026
     
    Regal Partners Limited
     
    Signature:Ian Cameron
    Name/Title:Company Secretary
    Date:01/07/2026
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