Im not sure but I think after the fact someone worked out somehow on CHP that he'd transferred it to his dads super who Im guessing is retired so maybe tax benefits and this would only be done if you had a reasonable belief the shares value were going to increase greatly which is exactly what they did on CHP
Dykes did not get CMY shares at 0.5c CHP did, Dykes got his shares at 1c
So hes chosen to off market them at his cost price
If people cant see that this wasnt actual selling otherwise he could have easily gotten 1.6c+ on market and theres more to it then go have a look at CHP and what he did there