IMO i think that the big houses are 'allowing' the price of this stock to go up at a controlled rate.
The slower the rate goes up, the more frustrated some investors (the weak hands) are, the more they will sell when the price goes up a fraction to what the rest of the market is doing.
Sure the price has climbed percentage wise, but in all fairness to the small guys here, this stock shoud have been at this level a year ago, before the crash of '08.
When we see a price and feel real good about it, some of us (the weak sisters) will sell into this rise and the big houses will be there to buy them up.
this is what i have seen in the last few years.