.7 million and 44.7 million shares of our common stock as of december 31 , 2014 and 2013 . note 10 2013 stockholders 2019 equity at december 31 , 2014 and 2013 , our authorized capital was composed of 1.5 billion shares of common stock and 50 million shares of series preferred stock . of the 316 million shares of common stock issued and outstanding as of december 31 , 2014 , 314 million shares were considered outstanding for balance sheet presentation purposes ; the remaining .