In comparison, last year the company had a GAAP net loss of $19 million TipRanks has tracked 36,000 company insiders and found that a few of them are better than others when it comes to timing their transactions. See which 3 stocks are most likely to make moves following their insider activities. Mustang Bio (MBIO) Company Description: Mustang Bio, Inc. is a clinical-stage biopharmaceutical company that focuses on the development and commercialization of a broad range of proprietary chimeric antigen receptor engineered T cell (CAR T) immunotherapies and gene therapies.