Alterity issues 8.4M shares under option deal

Alterity Therapeutics issued 8,400,000 new ordinary shares under an underwriting agreement tied to its ATHO listed options and lodged a cleansing notice under section 708A(5)(e).

Rhea-AI Filing Summary

Alterity Therapeutics Limited (ATHE) reports that it has completed the issue of 8,400,000 fully paid ordinary shares to MST Financial Services Pty Ltd and various sub-underwriters. The shares were issued pursuant to an underwriting agreement relating to Alterity’s ATHO class of listed options exercisable at A$0.50 each on or before August 31, 2026.

The company has provided a cleansing notice under section 708A(5)(e) of the Corporations Act 2001 (Cth), which facilitates secondary trading of these newly issued shares in compliance with Australian securities law.

Filing Explained

As a foreign private issuer’s interim report, the September 8 Form 6-K records the completed issue of 8,400,000 ordinary shares and states that the report is incorporated by reference into Alterity’s Form S-8 and Form F-3 registration statements.

Key Figures

New shares issued: 8,400,000 shares ATHO option exercise price: A$0.50 per option ATHO option expiry date: August 31, 2026

3 metrics

New shares issued 8,400,000 shares Fully paid ordinary shares issued to MST Financial Services Pty Ltd and sub-underwriters

ATHO option exercise price A$0.50 per option ATHO class of listed options exercisable at this price

ATHO option expiry date August 31, 2026 Expiry for ATHO class of listed options linked to the underwriting

Key Terms

Cleansing Notice, section 708A(5)(e), underwriting agreement, listed options, +1 more

5 terms

Cleansing Notice regulatory

"CLEANSING NOTICE UNDER SECTION 708A(5)(E) OF THE CORPORATIONS ACT"

section 708A(5)(e) regulatory

"notice pursuant to section 708A(5)(e) of the Corporations Act 2001 (Cth)"

underwriting agreement financial

"pursuant to the underwriting agreement announced by the Company on 31 August 2026"

An underwriting agreement is a contract where a company selling new stocks or bonds hires financial firms to buy those securities and resell them to investors. It matters because the agreement sets the offering price, number of securities, fees and which party bears the risk if sales fall short—think of it as a promise that the sale will happen and a roadmap investors can use to understand how the new securities reach the market.

listed options financial

"Company’s ATHO class of listed options exercisable at A$0.50 each"

Listed options are standardized contracts traded on an exchange that give the buyer the right, but not the obligation, to buy or sell a specific stock or other security at a fixed price before a set date. Think of them like exchange-backed coupons that let investors lock in a price, offering a tool for protecting a portfolio, generating income, or making a concentrated bet—with the benefits of transparent pricing and easier trading compared with private contracts.

fully paid ordinary shares financial

"completed the issue of 8,400,000 fully paid ordinary shares (Shares)"

Ordinary shares are the standard class of company stock that give owners rights such as voting and entitlement to dividends; “fully paid” means the buyer has already paid the full purchase price and owes no further money to the company. Think of it like owning a car outright rather than making payments: the holder has the full ownership rights and cannot be asked to pay more if the company needs cash. This matters to investors because it clarifies legal rights, dividend eligibility, and that there is no future liability on those shares.

FAQ

What did ALTERITY THERAPEUTICS LTD (ATHE) announce in this Form 6-K?

Alterity Therapeutics announced the completion of the issue of 8,400,000 fully paid ordinary shares to MST Financial Services Pty Ltd and various sub-underwriters, tied to an underwriting agreement for its ATHO class of listed options.

How many new Alterity Therapeutics (ATHE) shares were issued and to whom?

Alterity Therapeutics issued 8,400,000 fully paid ordinary shares to MST Financial Services Pty Ltd and various sub-underwriters, pursuant to an underwriting agreement connected to the company’s ATHO listed options.

What options are related to Alterity Therapeutics’ (ATHE) new share issue?

The share issue relates to the company’s ATHO class of listed options, which are exercisable at A$0.50 each on or before August 31, 2026, under an underwriting agreement previously announced.

What is the purpose of the cleansing notice mentioned by Alterity Therapeutics (ATHE)?

Alterity issued a cleansing notice under section 708A(5)(e) of the Corporations Act 2001 (Cth), which helps ensure that the newly issued shares can be traded in the secondary market in accordance with Australian securities law requirements.

Who authorised the latest Alterity Therapeutics (ATHE) announcement?

The announcement was authorised for release by the Board of Alterity Therapeutics Limited, and it is signed by Abby Macnish Niven, the company’s CFO & Company Secretary.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-163

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of September 2026

Alterity Therapeutics Limited

(Name of Registrant)

Level 15, 500 Collins Street, Melbourne, Victoria 3000 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 ☐

This Form 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, 333-231417 and 333-250076)

ALTERITY THERAPEUTICS LIMITED

(a development stage enterprise)

The following exhibits are submitted:

99.1 Cleansing 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/ Julian Babarczy
		Julian Babarczy
		Chairman

Date: September 8, 2026

2

Exhibit 99.1

8 September 2026

CLEANSING NOTICE UNDER SECTION 708A(5)(E) OF THE CORPORATIONS ACT

Alterity Therapeutics Limited (ASX:ATH) (the Company) advises that it has completed the issue of 8,400,000 fully paid ordinary shares (Shares) to MST Financial Services Pty Ltd (and various sub underwriters) pursuant to the underwriting agreement announced by the Company on 31 August 2026, in respect of the Company’s ATHO class of listed options exercisable at A$0.50 each on or before 31 August 2026.

The Company gives notice pursuant to section 708A(5)(e) of the Corporations Act 2001 (Cth) (Corporations Act) that:

(a) the Company issued the Shares without disclosure to investors under Part 6D.2 of the Corporations Act; and

(b) 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) section 674 and section 674A of the Corporations Act; and

(c) as at the date of this notice, there is no information that is “excluded information” (as defined in section 708A(7) of the Corporations Act) which is required to be disclosed by the Company in accordance with Section 708A(8) of the Corporations Act.

This announcement is authorised for release by the Board of Alterity Therapeutics Limited.

Yours faithfully

Abby Macnish Niven

CFO & Company Secretary

T:         +61 (0)3 9349 4906

E:          cfo@alteritytx.com

Alterity Therapeutics Limited ACN 080 699 065
Level 15, 500 Collins Street, Melbourne, Victoria 3000 Australia
www.alteritytx.com

Filing Exhibits & Attachments

1 document

Press Releases

• EX-99.1 EXHIBIT 99.1 8.1 KB