"Stan Rupnik is the Chief Investment Officer for the Teachers' Retirement System of the State of Illinois (TRS). TRS is the largest public plan in the state of Illinois, with an investment portfolio in excess of $30 billion. As CIO, Stan has direct oversight of all asset classes and manages an internal staff as well as the full roster of external investment managers. Stan joined TRS in April 2003. He has held various investment-related roles including portfolio management, equity research, and credit analysis. Prior to TRS, he was associated with GE Asset Management in Stamford, Connecticut and Wayne Hummer Investments in Chicago, Illinois. Stan is an alumnus of the University of Illinois, receiving both an undergraduate degree in economics and a Master of Business Administration from the Urbana-Champaign campus. He has also a CFA Charterholder. He is married, has two children, and resides in Springfield, Illinois. TRS is the retirement system for public school teachers and administrators employed in all Illinois public schools except the city of Chicago. It serves over 355,584 members and annuitants."