On May 25, 2022, the board of directors of IGM Biosciences, Inc. appointed Steven Weber as the company's principal accounting officer, effective immediately. Mr. Weber will also continue to serve as the company's senior vice president and corporate controller. Mr. Weber, 46, has served as its Senior Vice President and Corporate Controller since March 2022.

Previously, Mr. Weber served at Aeglea BioTherapeutics, Inc. as Vice President and Principal Accounting Officer from February 2021 to March 2022, Senior Director and Corporate Controller from July 2015 to January 2021, and Director and Corporate Controller from 2014 to 2015. He began his career at PricewaterhouseCoopers LLP. Mr. Weber is a certified public accountant in the State of Texas and received a B.B.A. in Accounting and a M.P.A. in Professional Accounting from the McCombs School of Business at the University of Texas at Austin.