Our Management Team
William Greenberg has served as a Managing Director at Two Harbors since 2012. Prior to joining Two Harbors, Mr. Greenberg was a Managing Director and the Head of Investment Bank Risk Control Strategy at UBS AG, where he was responsible for issues of strategic importance to the investment bank. Previously, he was Head of Mortgage Strategy & Solutions Group, where he was responsible for managing the risk associated with mortgage repurchase liability related to over $100 billion of RMBS and whole loans issued and/or sold by UBS. Before that, he was Senior Portfolio Manager and Co-head of U.S. trading within the SNB StabFund, the business unit created in 2008 to manage $40 billion of legacy RMBS, ABS, and CMBS securities and loans. Prior to joining UBS, Mr. Greenberg was a Managing Director and Senior Portfolio Manager at Natixis NA, where he co-managed both client and proprietary portfolios of Agency and Non-Agency RMBS, and Agency Mortgage Servicing Rights. Mr. Greenberg holds a B.S. in physics from the Massachusetts Institute of Technology, and M.S. and Ph.D. degrees in theoretical nuclear physics from the University of Washington.