# EDGAR Filing Document

**Accession Number:** 0001131343
**File Stem:** 0001213900-25-077041
**Filing Date:** 2025-8
**Character Count:** 11084
**Document Hash:** 605805b909b309a7098ba848eb8ffcc1
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001213900-25-077041.hdr.sgml**: 20250815

**ACCESSION NUMBER**: 0001213900-25-077041

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 3

**CONFORMED PERIOD OF REPORT**: 20250815

**FILED AS OF DATE**: 20250815

**DATE AS OF CHANGE**: 20250815

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ALTERITY THERAPEUTICS LTD
- **CENTRAL INDEX KEY:** 0001131343
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 000000000
- **STATE OF INCORPORATION:** C3
- **FISCAL YEAR END:** 0630

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-49843
- **FILM NUMBER:** 251222417

**BUSINESS ADDRESS:**
- **STREET 1:** LEVEL 3, 460 BOURKE STREET
- **CITY:** MELBOURNE
- **STATE:** C3
- **ZIP:** VIC 3000
- **BUSINESS PHONE:** 61 3 9349 4906

**MAIL ADDRESS:**
- **STREET 1:** LEVEL 3, 460 BOURKE STREET
- **CITY:** MELBOURNE
- **STATE:** C3
- **ZIP:** VIC 3000

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PRANA BIOTECHNOLOGY LTD
- **DATE OF NAME CHANGE:** 20010105

**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 August 2025**

**Alterity Therapeutics Limited**

(Name of Registrant)

**Level 14, 350 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](http://www.sec.gov/Archives/edgar/data/1131343/000121390020040485/ea130838-s8_alteritytherape.htm), [333-248980](http://www.sec.gov/Archives/edgar/data/1131343/000121390020027969/ea127207-s8_alteritytherap.htm) and [333-228671](http://www.sec.gov/Archives/edgar/data/1131343/000114420418063081/tv508429_s-8.htm)) and our Registration Statements on Form F-3 (Files No. [333-274816](http://www.sec.gov/Archives/edgar/data/1131343/000101376223000033/ea185947-f3_alteritytherape.htm), [333-251647](http://www.sec.gov/Archives/edgar/data/1131343/000121390020044324/ea132148-f3_alteritytherape.htm), [333-231417](http://www.sec.gov/Archives/edgar/data/1131343/000114420419025615/tv521271_f3.htm) and [333-250076](http://www.sec.gov/Archives/edgar/data/1131343/000121390020036934/ea129831-f3_alteritytherap.htm))**

**ALTERITY THERAPEUTICS LIMITED**

**(a development stage enterprise)**

The following exhibits are submitted:

99.1 [Notification regarding unquoted securities - ATH](ea025349101ex99-1_alterity.htm)

**<u>SIGNATURE</u>**

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

---

Date: August 15, 2025

## Exhibit 99.1

**Exhibit 99.1**

---

| | |
|:---|:---|
| ![](ex99-1_001.jpg) | Appendix 3G - Notification of issue, conversion or payment up of unquoted equity securities |

---

Announcement Summary

**Entity name**

ALTERITY THERAPEUTICS LIMITED

**Date of this announcement**

Friday August 15, 2025

**The +securities the subject of this notification are:**

+Other securities issued under an +employee incentive scheme that are not intended to be quoted on ASX

**Total number of +securities to be issued/transferred**

---

| | | | |
|:---|:---|:---|:---|
| **ASX +security code** | **Security description** | **Total number of <br> +securities to be <br> issued/transferred** | **Issue date** |
| New class - code to be confirmed | Unlisted options expiring 8 August 2030, ex US$0.0086 | 312400200 | 15/08/2025 |

---

Refer to next page for full details of the announcement

Appendix 3G - Notification of issue, conversion or payment up of unquoted equity securities 1/7

---

| | |
|:---|:---|
| ![](ex99-1_001.jpg) | Appendix 3G - Notification of issue, conversion or payment up of unquoted equity securities |

---

Part 1 - Entity and announcement details

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **1.1** **Name of entity**

ALTERITY THERAPEUTICS LIMITED

We (the entity named above) give notice of the issue, conversion or payment up of the following unquoted +securities.

---

| | |
|:---|:---|
| **1.2** **Registered number type** | **Registration number** |
| ABN | 37080699065 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **1.3** **ASX issuer code**

ATH

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **1.4** **The announcement is**

New announcement

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**1.5** **Date of this announcement**

15/8/2025

Appendix 3G - Notification of issue, conversion or payment up of unquoted equity securities 2/7

---

| | |
|:---|:---|
| ![](ex99-1_001.jpg) | Appendix 3G - Notification of issue, conversion or payment up of unquoted equity securities |

---

Part 2 - Issue details

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **2.1** **The +securities the subject of this notification are:**

+Other securities issued under an +employee incentive scheme that are not intended to be quoted on ASX

**2.2a** **This notification is given in relation to an issue of +securities in a class which is not quoted on ASX and which:**

does not have an existing ASX security code ("new class")

Appendix 3G - Notification of issue, conversion or payment up of unquoted equity securities 3/7

---

| | |
|:---|:---|
| ![](ex99-1_001.jpg) | Appendix 3G - Notification of issue, conversion or payment up of unquoted equity securities |

---

Part 3C - number and type of +securities the subject of this notification (new class)

---

| | |
|:---|:---|
| **ASX +security code** | **+Security description** |
| New class - code to be confirmed | Unlisted options expiring 8 August 2030, ex US$0.0086 |
| **+Security type** | **ISIN code** |
| Options |  |

---

**Date the +securities the subject of this notification were issued**

15/8/2025

**Will all the +securities issued in this class rank equally in all respects from their issue date?**

Yes

**Were any of the +securities issued to +key management personnel (KMP) or an +associate?**

Yes

**Provide details of the KMP or +associates being issued +securities.**

---

| | | |
|:---|:---|:---|
| **Name of KMP** | **Name of registered holder** | **Number of +securities** |
| David Stamler | David Stamler | 290400000 |

---

**Have you received confirmation from ASX that the terms of the +securities are appropriate and equitable under listing rule 6.1?**

No

**Please provide a URL link for a document lodged with ASX setting out the material terms of the +securities being issued.**

Options Details

---

| | | |
|:---|:---|:---|
| **+Security currency** | **Exercise price** | **Expiry date** |
| USD - US Dollar | USD 0.00860000 | 8/8/2030 |

---

**Details of the existing class of +security that will be issued upon exercise or conversion of this new class of company option**

ATH : ORDINARY FULLY PAID

**Please provide a URL link for a document lodged with ASX detailing the terms of the +employee incentive scheme or a summary of the terms**

https://app.sharelinktechnologies.com/announcement/asx/786790b2c52e5b04b80c6d18bc2009d4

**Any other information the entity wishes to provide about the +securities the subject of this notification**

Appendix 3G - Notification of issue, conversion or payment up of unquoted equity securities 4/7

---

| | |
|:---|:---|
| ![](ex99-1_001.jpg) | Appendix 3G - Notification of issue, conversion or payment up of unquoted equity securities |

---

Issue details

**Number of +securities**

312,400,200

Appendix 3G - Notification of issue, conversion or payment up of unquoted equity securities 5/7

---

| | |
|:---|:---|
| ![](ex99-1_001.jpg) | Appendix 3G - Notification of issue, conversion or payment up of unquoted equity securities |

---

Part 4 - +Securities on issue

**Following the issue, conversion or payment up of the +securities the subject of this notification, the +securities 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.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **4.1** **Quoted +securities (Total number of each +class of +securities issued and quoted on ASX)**

---

| | |
|:---|:---|
| **ASX +security code and description** | **Total number of <br> +securities on issue** |
| ATH : ORDINARY FULLY PAID | 9207465724 |
| ATHO : OPTION EXPIRING 31-AUG-2026 | 932516031 |
| ATHOA : OPTION EXPIRING 26-FEB-2027 | 1222300911 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **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> +securities on issue** |
| ATHAAE : OPTION EXPIRING 29-NOV-2026 EX $0.0375 | 10000000 |
| ATHAAG : OPTION EXPIRING 29-NOV-2026 EX $0.0238 | 11500000 |
| ATHAD : OPTION EXPIRING 01-JUL-2030 EX $0.01 | 15000000 |
| ATHAAB : OPTION EXPIRING 17-SEP-2025 EX $0.09 | 35000000 |
| ATHAAK : OPTION EXPIRING 30-DEC-2027 EX $0.01 | 170000000 |
| ATHAAH : OPTION EXPIRING 19-DEC-2026 EX $0.0105 | 8000000 |
| ATHAB : OPTION EXPIRING 13-MAR-2029 EX US$0.0031 | 62500000 |
| ATHAA : OPTION EXPIRING 13-MAR-2029 EX $0.004 | 20166667 |
| ATHAC : OPTION EXPIRING 21-MAR-2029 EX US$0.003 | 40000200 |
| ATHAAD : OPTION EXPIRING 06-JAN-2026 EX $0.032 | 91392720 |
| New class - code to be confirmed : Unlisted options expiring 8 August 2030, ex US$0.0086 | 312400200 |

---

Appendix 3G - Notification of issue, conversion or payment up of unquoted equity securities 6/7

---

| | |
|:---|:---|
| ![](ex99-1_001.jpg) | Appendix 3G - Notification of issue, conversion or payment up of unquoted equity securities |

---

Part 5 - Other Listing Rule requirements

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**5.1** **Were the +securities issued under an exception in Listing Rule 7.2 and therefore the issue did not need any security holder approval under Listing Rule 7.1?**

Yes

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**5.1** **a Select the number of the applicable exception in Listing Rule 7.2**

Appendix 3G - Notification of issue, conversion or payment up of unquoted equity securities 7/7