Robert Nelsen has served as a member of our Board since October 2018. Mr. Nelsen is a co-founder and has served as Managing Director of ARCH Venture Partners, a venture capital firm focused on early-stage technology companies, since 1994, and has played a significant role in the early sourcing, financing, and development of more than 150 biopharmaceutical companies. Mr. Nelsen currently serves on the boards of directors of Hua Medicine, a public biotechnology company, where he serves as Chairman, and Prime Medicine, Inc., a public biotechnology company. Mr. Nelsen previously served on the boards of directors of several public biotechnology and biopharmaceutical companies, including Adolor Corporation, Agios Pharmaceuticals, Inc., Beam Therapeutics Inc. (Beam), Bellerophon Therapeutics, Inc., Brii Biosciences Limited, Denali Therapeutics, Inc., Fate Therapeutics, Inc., Gossamer Bio, Inc. (Gossamer Bio), Illumina, Juno, Karuna Therapeutics, Inc., KYTHERA Biopharmaceuticals, Inc., Lyell Immunopharma, NeurogesX, Inc., Revolution Healthcare Acquisition Corp., Sage Therapeutics, Inc., Sienna Biopharmaceuticals, Inc., Syros Pharmaceuticals, Inc., Unity Biotechnology, Inc., and Vir Biotechnology, Inc. He also previously served as a Trustee of the Fred Hutchinson Cancer Center and the Institute for Systems Biology, and as a director of the National Venture Capital Association. Mr. Nelsen received his M.B.A. from the University of Chicago Booth School of Business and his B.S. in Economics and Biology from the University of Puget Sound. We believe Mr. Nelsen is qualified to serve on our Board because of his venture capital and industry experience, his extensive experience serving on boards of directors of public biotechnology companies, and his significant academic experience.