Yes, a disaster it was indeed.
I assume you are referring to the subject (as resolution) of removing the chairman and CEO.
Looking at the top 20 one would have to ignore the Banks (HSBC, BNP, etc.) and that then leaves only Alemar with 7.56% as a potential actor.

Ann: Top 20 Holders and Distribution Schedules

Copy/Paste https://www.austlii.edu.au/cgi-bin/viewdoc/au/legis/cth/consol_act/ca2001172/s249d.html

CORPORATIONSACT 2001 - SECT 249D Calling of general meeting by directors when requested bymembers

CORPORATIONS ACT 2001 - SECT249D

Calling of general meeting by directors when requested by members

(1) The directors of a company must call and arrange to hold a general meeting on the requestof members with at least 5% of the votes that may be cast at the generalmeeting.

(2) The requestmust:

(a) be in writing; and

(b) state any resolution to beproposed at the meeting; and

(c) be signed by the members makingthe request; and

(d) be given tothe company.

(3) Separatecopies of a document setting out the request may be used for signing by members if the wording of the request is identical in each copy.

(4) Thepercentage of votes that members have is to be worked out as at the midnight before the request isgiven to the company.

(5) The directors must call the meeting within 21 days after the request is given to the company. The meeting is to be held not later than 2 months after the request is given to the company.