Vuzix Corp (NASDAQ:VUZI) shares are trading lower Monday after the company filed for a mixed shelf offering. What Happened: After the market close on Friday, Vuzix announced that it may from time to time sell common stock, preferred stock, warrants, or a combination of securities in one or more offerings for an aggregate initial offering price of up to $300 million. Vuzix said it may offer the securities directly or through agents or to or through underwriters or dealers. The company said it will provide an additional prospectus describing the terms if it offers securities through agents, unde…