Proposed issue of securities Update Summary Entity name ALTERITY THERAPEUTICS LIMITED Announcement Type Update to previous announcement Date of this announcement 18/12/2023 Reason for update to a previous announcement Op

ALTERITY THERAPEUTICS LIMITED

Update to previous announcement

Date of this announcement

Reason for update to a previous announcement

Refer to next page for full details of the announcement

ALTERITY THERAPEUTICS LIMITED

We (the entity named above) give ASX the following information about

a proposed issue of +securities and, if ASX agrees to +quote any of the +securities (including any rights) on a +deferred settlement

basis, we agree to the matters set out in Appendix 3B of the ASX Listing Rules.

If the +securities are being offered under a +disclosure document

or +PDS and are intended to be quoted on ASX, we also apply for quotation of all of the +securities that may be issued under the +disclosure

document or +PDS on the terms set out in Appendix 2A of the ASX Listing Rules (on the understanding that once the final number of +securities

issued under the +disclosure document or +PDS is known, in accordance with Listing Rule 3.10.3C, we will complete and lodge with ASX

an Appendix 2A online form notifying ASX of their issue and applying for their quotation).

1.4 The announcement is

Update/amendment to previous announcement

1.4a Reason for update to a previous announcement

1.4b Date of previous announcement to this update

1.5 Date of this announcement

1.6 The Proposed issue is:

+securities under a +securities purchase plan

4A.1 Do any external approvals need to be obtained or other conditions

satisfied before the offer of +securities under the +securities purchase plan issue can proceed on an unconditional basis?

Class or classes of +securities that will participate in the

proposed issue and class or classes of +securities proposed to be issued

ASX +security code and description

ATH : ORDINARY FULLY PAID

the proposed issue of this +security include an offer of attaching +securities?

Details of +securities proposed to be issued

ASX +security code and description

ATH : ORDINARY FULLY PAID

Maximum total number of those +securities that could be issued

if all offers under the +securities purchase plan are accepted

Will the offer be conditional on applications for a minimum number

of +securities being received or a minimum amount being raised (i.e. a minimum subscription condition)?

Will the offer be conditional on applications for a maximum number

of +securities being received or a maximum amount being raised (i.e. a maximum subscription condition)?

Will individual security holders be required to accept the offer

for a minimum number or value of +securities (i.e. a minimum acceptance condition)?

Will individual security holders be limited to accepting the

offer for a maximum number or value of +securities (i.e. a maximum acceptance condition)?

Is the maximum acceptance unit based or dollar based?

Please enter the maximum acceptance value

Describe all the applicable parcels available for this offer

in number of securities or dollar value

Has the offer price been determined?

Oversubscription & Scale back details

Will a scale back be applied if the offer is over-subscribed?

Describe the scale back arrangements

Will these +securities rank equally in all respects from their

issue date with the existing issued +securities in that class?

The proposed attaching security can only be of an Existing class'

(additional +securities in a class that is already quoted or recorded by ASX)

Attaching +Security - New class (+securities in a class that is not

yet quoted or recorded by ASX)

Details of attaching +securities proposed to be issued

ISIN Code (if Issuer is a foreign company and +securities are

Offer ratio (ratio of attaching securities at which the new +securities

Has the offer price been determined?

How and when will the offer price be determined?

Please confirm whether the offer of the attaching +securities

is a separate offer to the offer pursuant to the +security purchase plan

Please confirm whether the attaching +securities are being offered

under a +disclosure document or +PDS

Oversubscription & Scale back details

Will a scale back be applied if the offer is over-subscribed?

Describe the scale back arrangements

Will all the +securities issued in this class rank equally in

all respects from their issue date?

AUD - Australian Dollar

Details of the type of +security that will be issued if the option

ATH : ORDINARY FULLY PAID

Number of securities that will be issued if the option is exercised

Please provide a URL link for a document lodged with ASX setting

out the material terms of the +securities proposed to be issued or provide the information by separate announcement.

Details of attaching +securities proposed to be issued

ISIN Code (if Issuer is a foreign company and +securities are

Offer ratio (ratio of attaching securities at which the new +securities

Has the offer price been determined?

How and when will the offer price be determined?

Please confirm whether the offer of the attaching +securities

is a separate offer to the offer pursuant to the +security purchase plan

Please confirm whether the attaching +securities are being offered

under a +disclosure document or +PDS

Oversubscription & Scale back details

Will a scale back be applied if the offer is over-subscribed?

Describe the scale back arrangements

Will all the +securities issued in this class rank equally in

all respects from their issue date?

AUD - Australian Dollar