Aaron P. Diefenthaler

Aaron Diefenthaler, CFA, has extensive experience in investment management and finance, currently serving as Vice President, Chief Investment Officer, and Treasurer at RLI since January 2012. In addition, Aaron Diefenthaler is a Board Member at Maui Jim Sunglasses since January 2020. Prior to these roles, Aaron Diefenthaler was a Principal and Portfolio Manager at AAM from October 2002 to January 2012 and held a position in business development and software consulting at SS&C Technologies from April 1998 to October 2002. Earlier in the career, Aaron Diefenthaler worked as a Portfolio Analyst at Northern Trust from June 1996 to April 1998. Educational qualifications include a Master of Business Administration (M.B.A.) in Finance from The University of Chicago Booth School of Business and a Bachelor’s Degree in Finance with a Minor in Economics from Indiana University - Kelley School of Business.