Born in Ankara in 1960, S. Ergun Özen completed his secondary education at TED Ankara College in 1978. After his registration in 1981, he graduated from the Department of Economics at New York State University in 1985. He completed Advanced Management program at Harvard Business School in 1997. He started his business career in 1987 as an Assistant Specialist at Economic Researches Unit of Türkiye İş Bank. Having joined T. Garanti Bank in 1992 by assuming an office in the Treasury Unit, Özen became the Manager of Treasury Unit in 1994, and then Assistant General Manager responsible for Treasury and Investment Banking in 1995. He was appointed as the President/CEO on 1 April 2000. He is a Board Member at Garanti Bank since 1 September 2015. He has been serving as the Board Chairman of BRTI as of 2017.