significant shareholder coming

I think over the past couple of weeks there has been a significant buyer of this stock which explains why it has hardly had a break. Someone has been buying up at every opportunity, and due to the low number of shares available, every time it starts coming off due to profit taking, the big buyer comes in.

Up to now, watching the depth, rows of sells have consistantly been taken out and today was the first day I've seen rows of buys taken out. But not many. I don't think it's someone trying to take a position for a takeover but possibly just a major investor, probably in the ag sector.

Probably more speculation than anything else, but the consistancy of the buying over an extended period, is surprising.

Any thoughts?