The thing is that the whole market is going up and small bio stocks are finally getting the attentions of the big funds. These funds have been quietly taking profits on their blue chip holdings and accumulating shares on severely undervalued bio stocks like PGNX. Just look at the institutional holding on this stock. There is very little selling and all buys. The CEO has been buying since the stock cratered last year and he hasn't sold a single share yet. When he or other leadership members are selling, I will sell too.