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Dr. Giaccia has served as a member of the Board of Directors since October 2018. Prior to the closing date of the Merger, he also served as a member of the board of directors of Aravive Biologics from August 2010 to October 2018 and as Acting Chief Scientific Officer of Private Aravive from January 2017 until the Merger was completed on October 12, 2018. Dr. Giaccia also served as Professor of Radiation Oncology, Associate Chair for Research & Director of the Division of Radiation & Cancer Biology in the Department of Radiation Oncology at Stanford University School of Medicine, a position he has held since 2011 and has been a Director of Oxford Institute of Radiation Oncology since January 2019. He is also the Associate Director for Basic Science and leader of the Radiation Biology Program in Stanford Cancer Institute. He has also served as the Director of the Cancer Biology Interdisciplinary Graduate Program and is currently the “Jack, Lulu and Sam Willson Professor in Cancer Biology” in the Stanford University School of Medicine. He received his Ph.D. from the University of Pennsylvania.