Aryeh is the founder and CEO of LionTree LLC, an independent investment bank. He previously served as Vice Chairman and Head of Americas Investment Banking at UBS, which he joined in 1999. He was also a member of the UBS Investment Banking Executive Committee. Other positions Mr. Bourkoff held within UBS include Joint Global Head of Telecom, Media, and Technology Investment Banking and Head of the Media and Communications Research Group. Before joining UBS, he served as a high-yield research analyst at CIBC World Markets from 1997-99 and Smith Barney from 1995-97.