Prior to joining OHIM, Mark was President and Executive Director of Investment Services at Nuveen Investments, an asset management firm with nearly $145 billion assets under management.

Prior to Nuveen, Mark served as Chief Executive Officer of Hermes Pensions Management Ltd., an institutional asset management company based in London with $80 billion AUM, where he was also the Chief Executive Officer of the British Telecom Pension Scheme, the largest pension fund in the United Kingdom and the sole owner of Hermes. Prior to joining Hermes, He served as the Chief Investment Officer of the California Public Employees’ Retirement System, one of the largest pension fund in the United States.

Mark is the former Chairman of the Board of the International Corporate Governance Network. He also has served on the advisory boards for the New York Stock Exchange, NYSE/Euronext, MSCI-Barra, The Dow Jones-UBS Commodity Index, and the International Association of Financial Engineers. Currently, he is a member of the Board of Governors of the CFA Institute and the SEC Advisory Committee to SEC Chairwoman Mary Schapiro. He has published over 100 research articles in professional journals, has won two Best Paper Awards, is the author of five financial textbooks including the Handbook of Alternative Assets, which is the primary textbook used for the Chartered Alternative Investment Analyst program, and sits on the editorial boards of several financial journals.

Mark earned a B.A. in Economics and Chemistry from St. Olaf College, a J.D. from Northwestern University School of Law, and a Masters and a Ph.D. in Finance from Columbia University Graduate School of Business, all with honors. In addition, Mark has earned the Chartered Financial Analyst, Chartered Alternative Investment Analyst, Certified Public Accountant, Certified Management Accountant, and Certified Internal Auditor professional designations.