Bot refers to Robot which basically is the reason that you kept seeing parcels of 600 shares being sold every 7 minute yesterday. It seems to be someone has programmed the bot to hit the bid every 7 minutes to keep the price low and build up their holding in the stock.
Which also equates to mean that someone out there loves the stock and knows where it is going. Good news for all holders
This is just my opinion only though :)
