William Greenberg
About William Greenberg
William Greenberg is the President and Chief Executive Officer with a strong background in theoretical nuclear physics and extensive experience in managing significant financial risks and assets in the banking sector.
Title: William Greenberg President and CEO
William Greenberg currently holds the position of President and Chief Executive Officer. His extensive expertise in managing complex financial instruments and his leadership in overseeing large-scale portfolios highlight his role at the helm of the company.
Education and Expertise in Nuclear Physics
William Greenberg boasts an impressive academic background in Theoretical Nuclear Physics. He holds a B.S. degree in Physics from the Massachusetts Institute of Technology (MIT) and completed both his M.S. and Ph.D. degrees at the University of Washington. His rigorous training in these demanding fields lays a solid foundation for his analytical and problem-solving skills in the financial sector.
Managing Director Role at UBS AG
Prior to his current role, William Greenberg served as a Managing Director at UBS AG. There, he managed the mortgage repurchase liability risk associated with over $100 billion worth of Residential Mortgage-Backed Securities (RMBS) and whole loans. This role involved significant responsibility and deep expertise in financial risk management.
Co-Head of Trading at SNB StabFund
William Greenberg also served as the Co-Head of Trading within the SNB StabFund, where he managed $40 billion of legacy RMBS, Asset-Backed Securities (ABS), and Commercial Mortgage-Backed Securities (CMBS). His role required adept skills in trading and managing substantial, complex portfolios.
Managing Director at Natixis NA
In his career before joining SNB StabFund, William Greenberg was a Managing Director at Natixis NA. At Natixis, he co-managed portfolios of RMBS and Agency mortgage servicing rights. This position further demonstrated his ability to handle intricate financial products and showcase his expertise in the mortgage sector.