U.S. stock futures were lower this morning, with the Dow futures falling around 0.2% on Tuesday.Shares of Lightwave Logic Inc (NASDAQ:LWLG) fell sharply in pre-market trading after the company announced pricing of $35 million public offering of common stock.Lightwave Logic shares dipped 14.5% to $3.22 in pre-market trading.Here are some other stocks moving lower in pre-market trading.Ascent Solar Technologies, Inc. (NASDAQ:ASTI) shares dipped 15.1% to $3.54 in pre-market trading after jumping 34% on Monday. ...