Hi clivemax, @Squadger
Page 109 of this report mentions the Top 20 holders in Galaxy.
https://www.asx.com.au/asxpdf/20190416/pdf/444cfnkfk3rj36.pdf
The last corporate snapshot and its breakdown that I could find, was from this corporate presentation back in Nov 2018; page 5 of 30 pages.
Note that the breakdown into categories are: institutions, brokers, corporate shareholders etc. Private investor base is low.
https://www.asx.com.au/asxpdf/20181116/pdf/440brcpbtc8vj4.pdf