Mr. Radtke became a director of Assured Guaranty Ltd. in May 2021.

Mr. Radtke is the co-founder and partner of venture capital firm M Seven 8. Prior to founding M Seven 8 in 2017, he spent 24 years in various positions with Goldman Sachs, eight years of which was as a Partner. His career at Goldman Sachs included time in the Chicago, London and New York offices. Mr. Radtke was the Head of Mortgage and Structured Product Sales through the financial crisis of 2008-09 and its emergence from that crisis (2009-14). Mr. Radtke had additional leadership roles within the credit, mortgage and structured product disciplines within the Fixed Income Currencies and Commodities (FICC) Division. He was also responsible for additional sales/marketing groups, portfolio solution groups, and public advisory groups within FICC. These positions included Head of Credit Products Group—Hard Asset and Portfolio Solutions, Head of Structured Products—Distribution and Sourcing, Head of Structured Portfolio Solutions Group and Head of CLO Origination.

Mr. Radtke played an integral role in the development of diverse professionals within Goldman Sachs by leading summer intern, vice president and managing director diversity development programs. He has served as a director on various non-profit boards, including Children of Fallen Patriots Foundation, University of Wisconsin—Milwaukee School of Business and Mariposa Family Learning Center. 

Mr. Radtke is a member of the board of directors of the Lord Abbett Family of Funds.