Thomas E. O'Brien, Vice President of Northern Trust, is a portfolio manager with the international quantitative equity division. He co-manages the Northern Global Real Estate Index Fund and the Northern Global Sustainability Index Fund.

Prior to joining Northern Trust in 2004, Mr. O'Brien was a principal at State Street Global Advisors in Boston.

Mr. O'Brien holds a B.S. in finance from the University of Rhode Island and an MBA from Suffolk University. He is a CFA charterholder and a member of the Boston Security Analyst Society.