James T. Tierney, Jr. is Chief Investment Officer of Concentrated US Growth. Prior to joining AB in December 2013, he was CIO at W.P. Stewart & Co. Tierney began his career in 1988 in equity research at J.P. Morgan Investment Management, where he analyzed entertainment, healthcare and finance companies. He left J.P. Morgan in 1990 to pursue an MBA and returned in 1992 as a senior analyst covering energy, transportation, media and entertainment. Tierney joined W.P. Stewart in 2000. He holds a BS in finance from Providence College and an MBA from Columbia Business School at Columbia University.