Mike Grey

Mike Grey has 40 years of experience in the pharmaceutical and biotechnology industries and has served as Executive Chairman of the Spruce Board since 2017. He has founded several biotechnology companies and is currently chairman or executive chair of Mirum Pharmaceuticals, Inc., Plexium, Inc. and Reneo Pharmaceuticals, Inc. He also serves as venture partner at Pappas Capital. Previously, Mr. Grey founded and was President and Chief Executive Officer at Lumena Pharmaceuticals, Inc., a company developing treatments for pediatric and adult orphan diseases, until its acquisition by Shire Plc. Mr. Grey has held senior positions at a number of companies, including President and Chief Executive Officer of Auspex Pharmaceuticals, Inc., President and Chief Executive Officer of SGX Pharmaceuticals, Inc., which was acquired by Eli Lilly in 2008, President and Chief Executive Officer of Trega Biosciences, Inc., which was acquired by Lion Bioscience in 2001, and President of BioChem Therapeutic Inc. For approximately 20 years, Mr. Grey served in various roles with Glaxo, Inc. and Glaxo Holdings plc, culminating in his position as Vice President, Corporate Development and Head of International Licensing. Mr. Grey serves on the board of directors of Horizon Therapeutics plc.