Ann: Ceasing to be a substantial holder , page-3

This solves the question as to who has been selling down. The notice would appear to be late as it claims he dropped below the 5% threshold on the 2nd November and has only now notified the ASX of this, potentially he has continued selling post this and might have been the large seller of late.

Also note the parcel size, which explains who the 30k and 60k lot seller we have regularly seen sitting on the offer has been.

The background to this shareholding dates back a few years and is explained here:
http://www.heraldsun.com.au/business/heat-on-challenger/story-e6frfh4f-1111116734939

I think this is good news, we now know who has been selling and why the price may have been suppressed recently.

All IMO, not advice.