prepares for the rollout, page-6

They don't have to come from your initial purchase, as long as your can prove which parcel it was.
eg. buy 100000
buy 50000
sell 50000 - the sell clearly is from the 2nd purchase.
Much easier to buy different sized amounts to keep the trades in order.

Getting back to the stock - very interesting trading going on. Seems someone wants it and happy to wait until the end of the day.