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United by our conviction in the power of therapeutic innovation to improve human health.

Meet the Scion team

The ten companies our team has been part of founding or building over the past ten years have realized uncommon success and, together, have given rise to >15 clinical-stage therapeutics, advanced six promising therapeutics into pivotal clinical trials and have generated >$14 billion in combined public equity value and announced M&A proceeds. We are excited to discover what the future holds.

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Wiliam Chour, MD, PhD


William is an Associate at Scion. Prior to joining the Scion investment team in a full-time capacity William worked with the firm as a member of the inaugural cohort of Scion Fellows.

William holds an M.D. from the Keck School of Medicine of USC and a Ph.D. from the California Institute of Technology, where he worked in the laboratory of James R. Heath to develop immunotherapy technologies for oncology and COVID-19. He received his A.B. in Chemistry from Princeton University.