Mark Silber, J.D., M.B.A., is Executive Vice President and Chief Financial Officer of Renaissance Technologies, where he has held responsibility for finance, administration and compliance since joining the firm in 1983. Prior to joining Renaissance, he was a Certified Public Accountant with the accounting firm of Seidman & Seidman, now BDO Seidman. Mr. Silber holds a Bachelor's degree from Brooklyn College, a J.D. and L.L.M. in tax law from the New York University School of Law, and an M.B.A. in finance from the New York University Graduate School of Business Administration.