Sonja Schrepfer, MD, PhD, is Senior Vice President and Head of the Hypoimmune Platform at Sana Biotechnology, an Adjunct Professor at University of California, San Francisco in the Department of Surgery, and Founder of the Transplant and Stem Cell Immunobiology (TSI) lab at Stanford University.

Sonja received her MD and PhD from the Universities Wuerzburg and Hamburg where she was awarded the Heisenberg Professorship for her work to understand the immune barrier in stem cell biology for regenerative medicine. Sonja and her team subsequently decreased the immunogenic potential of stem cells to generate hypo-immunogenic tissues and organs, work that was funded by the California Institute for Regenerative Medicine and National Institutes of Health among others.