https://download.asic.gov.au/media/1241414/rg222-issued-15-april-2011.pdf
page 13.
A must lodge a substantialholding notice. (done 603)
A becomes holder of theshares. No change in itsreported relevant interest.
B no longer holds theshares.
B ceases to have arelevant interest.
B must give notice ofceasing to have asubstantial holding in X Co (done with 605)