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ATHE 6-K

Alterity Therapeutics Ltd (ATHE)

6-K 2025-09-15 For: 2025-09-15
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Added on July 04, 2026

SECURITIESAND EXCHANGE COMMISSION

Washington,D.C. 20549

FORM6-K

REPORTOF FOREIGN PRIVATE ISSUER

PURSUANTTO RULE 13a-16 OR 15d-163

UNDERTHE SECURITIES EXCHANGE ACT OF 1934


Forthe month of September 2025

AlterityTherapeutics Limited

(Name of Registrant)

Level 14, 350 Collins Street,Melbourne, Victoria 3000 Australia

(Address of Principal Executive Office)

Indicateby 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 ☐


ThisForm 6-K is being incorporated by reference into our Registration Statement on Form S-8 (Files No. 333-251073,333-248980 and 333-228671)and our Registration Statements on Form F-3 (Files No. 333-274816,333-251647, 333-231417and 333-250076)



ALTERITYTHERAPEUTICS LIMITED

(adevelopment stage enterprise)


The following exhibits are submitted:

99.1 Notice Under Section 708A
1

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.

Alterity Therapeutics Limited
By: /s/ Geoffrey P. Kempler
Geoffrey P. Kempler
Chairman

Date: September 15, 2025

2

Exhibit 99.1

ASX ANNOUNCEMENT 15 September 2025

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

This notice is given by Alterity Therapeutics Limited ACN 080 699 065 (ASX: ATH, NASDAQ: ATHE) (“Alterity” or “the Company”), under section 708A(5)(e) of the Corporations Act 2001 (Cth) (Corporations Act).

Details of securities issued
Type: Shares
Class/Description: Fully paid ordinary shares
ASX Code: ATH
Date of Issue: 15 September 2025
Number Issued: 1,666,666,663

The Company gives notice pursuant to section 708A(5)(e) of the Corporations Act 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:
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(i) the provisions of Chapter 2M of the Corporations Act as they apply to the Company; and
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(ii) sections 674 and 674A of the Corporations Act; and
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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.
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Abby Macnish Niven

Company Secretary

Alterity Therapeutics Limited ACN 080 699 065

Level 14, 350 Collins Street, Melbourne, Victoria 3000 Australia

www.alteritytherapeutics.com