also as adp is a substantial holder he can’t sell under the radar (other than less than 1% of stock) @Just_a_guy
Directors have restrictions on when they can sell and when they can't. That is, there are trading "blackouts" for instance in the weeks preceeding an annual or half yearly report; prior to a new development; etc. etc. when trading by directors is prohibited. BID will have a policy on this.
For some more info on this:
https://asic.gov.au/regulatory-resources/corporate-governance/corporate-governance-articles/director-share-trading/