A pattern in labcoin stock trades today

[BitThink]

If you look at the trade history of labcoin in btct.co today, you may also notice this pattern.
There're many small buys with 1 or 2 shares (considering the price is < 0.002, that's really weird) to push up the prices and then a large sell (> 1000shares). I'm not an expert of stock market. Anyone with more experience can help to explain this? Thanks a lot. Appreciated a lot if you help to quote in the labcoin thread in "securities" board.