Few sell orders that where waiting for a while have all...

Few sell orders that where waiting for a while have all disappeared...
What gets me with SIX is Management always seems to fully participate in rights issues and a couple of staff have accepted to be paid in shares instead of $ over the past 3 months, Management is slowly accumulating a large part of the co @ very low prices. I have not seen such strong commitment from Management in any other spec Co....do they know something and haven't shared that knowledge?? All my speculation of course, but there hasn't been any clear announcement if the Co is working on finalizing any major deal and they keep on accumulating the shares? Something is going on.