Humble pie23 Dec 2015 20:35
Ok then Mr Humble you have it. It was a rollover rather than a cancellation and a certain buy.
(Cancellation appeared 16:22, an hour later the large trade appeared, strongly indicating more shares were added to the same order, original order was cancelled and rolled into new order. All for 22,000 more shares at £1.88k = 8.55/share which was the retail price all afternoon, making it a worked buy throughout the day IMO - without the rollover it would look like a large sell of course, but pretty sure it wasn't)