People seem to forget that Tuesday is a public holiday - so 3-4 business days would be open of business on Fri the 29th.
The shares opened up this morning Ex-entitlement. Least that is what comsec ATC told me. So people selling today would most likely be selling 25% of their stake now at a higher price to buy back the 25% stake at 5c (booking profit, or lowering average cost).