Palo Alto Investors, LLC is an independent, privately owned investment advisor, registered with the Securities and Exchange Commission. The firm is located in Palto, California. Palo Alto Investors LLC submitted its SEC 13F filings for the period ended September 30, 2014, showing that United Therapeutics Corporation (NASDAQ:UTHR), Auxilium Pharmaceuticals, Inc. (NASDAQ:AUXL), and Cubist Pharmaceuticals Inc…