Alterity Therapeutics

<div class="ih-global-ui-overrides"></div>
<style>
  /* ==========================================================================
     InvestorHub Global UI Overrides
     Prefix: ih-
     Purpose:
       1) Hide share price / ticker widget
       2) Hide survey launcher button
       3) Hide injected timed survey popup panel
     ========================================================================== */
  /* --------------------------------------------------------------------------
     1) Hide ASX ticker / share price widget
     -------------------------------------------------------------------------- */
  #share-price {
    display: none !important;
    visibility: hidden !important;
    width: 0 !important;
    height: 0 !important;
    overflow: hidden !important;
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  #share-price + .h-8.w-px.bg-hubs-dividers {
    display: none !important;
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  /* --------------------------------------------------------------------------
     2) Hide the floating survey launcher button (bottom-right)
     (your earlier snippet)
     -------------------------------------------------------------------------- */
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  .fixed.right-2.bottom-2.z-20 {
    display: none !important;
    visibility: hidden !important;
    pointer-events: none !important;
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  /* --------------------------------------------------------------------------
     3) Hide the timed/injected survey popup panel
     (the wrapper you pasted)
     -------------------------------------------------------------------------- */
  /* Extremely specific: matches the exact utility-class signature of that popup */
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    display: none !important;
    visibility: hidden !important;
    pointer-events: none !important;
  }
  /* Slightly more flexible fallback (in case spacing classes change later)
     Still specific enough to avoid collateral damage */
  .fixed.z-30.overflow-hidden.rounded-xl.shadow-xl.bottom-24 {
    display: none !important;
    visibility: hidden !important;
    pointer-events: none !important;
  }
  /* Optional: if it ever mounts but stays in DOM, ensure it can't capture clicks */
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    pointer-events: none !important;
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</style>

<script>
  /* ==========================================================================
     InvestorHub Global UI Overrides
     Prefix: ih-
     Purpose:
       Rewrite the "Privacy Policy" link used by the cookie consent banner and
       the subscriber sign-up popup away from the InvestorHub microsite policy
       and onto Alterity Therapeutics' own privacy policy page.
       Does not touch the Terms and Conditions link or anything else.
     ========================================================================== */
  (function () {
    var OLD_PRIVACY_URL = 'https://investorhub.com/au-microsite-privacy-policy';
    var NEW_PRIVACY_URL = 'https://alteritytx.com/privacy-policy';
    function fixPrivacyLinks(root) {
      if (!root || !root.querySelectorAll) return;
      var links = root.querySelectorAll('a[href="' + OLD_PRIVACY_URL + '"]');
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          if (node.nodeType !== 1) continue;
          if (node.matches && node.matches('a[href="' + OLD_PRIVACY_URL + '"]')) {
            node.setAttribute('href', NEW_PRIVACY_URL);
          }
          fixPrivacyLinks(node);
        }
      }
    });
    observer.observe(document.documentElement || document.body, {
      childList: true,
      subtree: true
    });
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</script>



<style>
  /* A. Desktop sidebar survey card.
        Anchored to #lg-announcement-comments-section, so it cannot escape the
        sidebar rail. The Q&A card is the other child and is unaffected: it uses
        the chat-bubble icon, not this one. */
  #lg-announcement-comments-section > div.rounded-lg:has(> div > button.group svg path[d^="M9 12h3.75M9 15h3.75"]) {
    display: none !important;
  }
  /* B. Mobile PDF toolbar: hide ONLY the feedback button, never the toolbar.
        Scoped to the toolbar's own class signature so the PDF wrapper above it
        is never in scope. */
  div.fixed.right-3.left-3.z-10 > button:has(svg path[d^="M9 12h3.75M9 15h3.75"]) {
    display: none !important;
  }
</style>
<script>
  (function () {
    if (window.__ihSurveyHider) return;
    window.__ihSurveyHider = true;
    var HEADING = 'share your feedback';
    /* Hard stop list. If a candidate contains any of these we are too far up. */
    var PROTECTED = '.react-pdf__Document, #interactive-pdf, #annotation-toolbar, canvas, iframe, embed, object, video';
    function hide(el) {
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    }
    function isHidden(el) {
      if (!el || el.nodeType !== 1) return true;
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      return window.getComputedStyle(el).display === 'none';
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      if (el === document.body || el === document.documentElement) return false;
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           rail-collapse check below and in your Q&A script both see it. */
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        /* Mobile bottom sheet (rounded-t-2xl, so the rule above misses it). */
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      /* Mobile PDF toolbar button, JS-side mirror of rule B. Hides the button
         only -- the toolbar keeps its page controls and download. */
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        var p = btn.querySelector('svg path');
        if (p && (p.getAttribute('d') || '').indexOf('M9 12h3.75M9 15h3.75') === 0) hide(btn);
      });
      /* Collapse the desktop rail only if both cards are now gone. Deliberately
         scoped to the lg- section: the sm- sheets are fixed overlays whose
         parents hold unrelated content. "Discover" is a sibling of this
         wrapper inside #announcement-sidebar, so it survives. */
      var section = document.getElementById('lg-announcement-comments-section');
      if (!section) return;
      var hasVisible = Array.prototype.some.call(section.children, function (child) {
        return !isHidden(child);
      });
      if (hasVisible) return;
      hide(section);
      var parent = section.parentElement;
      if (parent && parent.children.length === 1 && safeToHide(parent)) hide(parent);
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    function start() {
      sweep();
      new MutationObserver(queueSweep).observe(document.body, { childList: true, subtree: true });
    }
    if (document.body) { start(); }
    else { document.addEventListener('DOMContentLoaded', start); }
  })();
</script>

<style>
  /* ==========================================================================
     InvestorHub Global UI Overrides
     Prefix: ih-
     Purpose:
       Give the announcement / PDF column more room on desktop by narrowing the
       right-hand sidebar rail and widening the overall page container. The rail
       holds the survey card (already hidden above), the Q&A / question box and
       "Discover more" -- all three are forced to follow the narrower rail width
       rather than holding their own fixed or minimum width. The annotation
       toolbar is nudged to stay clear of the narrowed rail.
       Desktop only (>=1024px) so mobile layout is untouched.
     ========================================================================== */
  @media (min-width: 1024px) {
    /* The rail itself. flex-basis is set as well as width because the rail is a
       flex child -- width alone can be ignored if a basis is already declared. */
    #announcement-sidebar {
      width: 400px !important;
      max-width: 400px !important;
      flex: 0 0 400px !important;
    }
    /* The page container that holds the announcement + the rail. */
    div:has(> #announcement-sidebar) {
      max-width: 1712px !important;
    }
    /* Everything inside the rail: Q&A / question box, the comments wrapper and
       "Discover more". Clears any fixed or min-width so they shrink with the
       rail instead of overflowing it. */
    #announcement-sidebar > *,
    #lg-announcement-comments-section,
    #lg-announcement-comments-section > *,
    #question-section {
      width: auto !important;
      max-width: 100% !important;
      min-width: 0 !important;
    }
    /* Keep the PDF annotation toolbar clear of the narrowed rail (400 + 64px
       gutter). Adjust this one number if the gap looks off. */
    #annotation-toolbar {
      right: 464px !important;
    }
  }
</style>

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Montserrat

Alterity Therapeutics Limited ACN 080 699 065
Level 14, 350 Collins Street, Melbourne, Victoria 3000 Australia
www.alteritytherapeutics.com
ASX ANNOUNCEMENT 13 November 2025
Disclosure under Takeovers Panel Guidance
Note 20: Equity Derivatives
Alterity Therapeutics Limited ACN 080 699 065 (ASX: ATH, NASDAQ: ATHE) (“the Company”) advises
that it has received the attached notice from Regal Funds Management Asia Pte Limited which was
provided to the Company pursuant to the Australian Takeovers Panel Guidance Note 20 – Equity
Derivatives.
Authorised for release by:
Abby Macnish Niven
Company Secretary
Alterity Therapeutics Limited
For further information please contact:
Investors
Remy Bernarda
Investor Relations Advisory Solutions
ir@alteritytx.com
+1 (415) 203-6386

12-November-2025
Dear Alterity Therapeutics ltd,
Identity of the taker: Amazon Market Neutral Fund Zambezi Absolute Return Fund
Relevant security:
Price (including reference price,
strike price, option price etc as
appropriate):
Any material changes to information
previously disclosed:
No information previously
disclosed
Previous disclosure of below
5% on 31-Jul-2024
Relevant interests in securities:
Long equity derivative positions and
relevant interests held by the taker
and its associates:
Short equity derivative positions
that offset physical positions:
Short positions of more than 1% that
have been acquired after a long
position is disclosed, whether by
notice or substantial holding notice:
Yours sincerely
Greg Laughlin
Chief Executive Officer
Regal Funds Management Asia Pte Limited
Disclosure of Long Equity Derivative Positions
Entry date and number of securities
to which the derivative relates:
Ordinary shares in Alterity Therapeutics ltd
None
The Funds have no other associates with a long equity
derivative position or relevant interest in the company
None
None
We refer to Guidance Note 20: Equity Derivatives (GN20), issued by the Australian Takeovers
Panel. Terms not defined in this notice have the meanings given to them in GN20.
GN20 relevantly provides that the non-disclosure of long positions, including long equity
derivative positions, may give rise to unacceptable circumstances. Regal Funds Management Asia
Pte Limited, as investment manager of Amazon Market Neutral Fund and Zambezi Absolute Return
Fund (the Funds), discloses the following information on behalf of the Funds.
Not applicable
Total number of securities
to which derivatives relate
as at 10-Nov-2025:
50,000,000 (0.46%)
Total number of securities
to which derivatives relate
as at 10-Nov-2025:
503,141,403 (4.63%)
Regal Funds Management Asia Pte Limited T +65 6654 1755 80
Raffles Place #26-23 UOB Plaza 2
Singapore 048624

Disclosure under Takeovers Panel GN 20