Percentage wise 1-3mill shares daily vol is just traders trying to make a buck.
I would believe most long term holders are now full or very close to it.
Dont expect to much activity until next update or ann.
But I do expect something,as you said to kick the price above 4.3c before share placement closes.
The current activity is certainly not large holders exiting.The pool of free shares must be getting smaller by the day.I would believe that 60 - 70 % are now in safe hands.
SBN Price at posting:
0.0¢ Sentiment: Buy Disclosure: Held