Has to be a little of both.
Concerning that someone has uploaded this much, but someone bought that amount as well, so that is good.
Still believe this board holds the majority of the float on this stock (total float is around 300-400 Million) and I think we(those who post on this board with any frequency) hold about 200-250 Million. Confident in that, in fact.
Like you, most are unwilling or unable to unload at this level... so shouldn't drop much(not too many selling) and won't go up much until some information comes from company.
When you think of someone unloading 1 million shares, sounds like a lot until you consider the stock price and think... wow... sales of $1500... not much!
IMO