Stephen Dilly, MBBS, Ph.D.
President and Chief Executive Officer
As President & CEO of Codexis since August 2022, Stephen brings more than three decades of executive management experience in the biopharmaceutical industry. Most recently, he served as President and CEO of Sierra Oncology (NASDAQ: SRRA) through its recent sale to GlaxoSmithKline for $1.9 billion. Previously, Dr. Dilly served as CEO of Aimmune Therapeutics, acquired by Nestle Health Science for $2.6 billion. Dr. Dilly has served in executive roles at Genentech, Chiron and SmithKline Beecham and has been associated with the development, approval and launch of more than twenty marketed drugs across multiple therapeutic areas. He holds both an MBBS and a Ph.D. in Cardiac Physiology from the University of London.
Sri Ryali, MBA
Chief Financial Officer
Sri Ryali brings 20 years of finance and commercial experience to Codexis. Mr. Ryali served as the Chief Financial Officer of Eiger BioPharmaceuticals, Inc., a publicly-traded commercial stage, from December 2018 to January 2023. During this time, Mr. Ryali was responsible for Finance, Investor Relations and other General and Administrative functions as the company initiated multiple late-stage clinical trials and launched its first commercial product in the U.S. and Europe. Mr. Ryali held roles of increasing responsibility at Aimmune Therapeutics, Inc., a biopharmaceutical company, between August 2015 and December 2018, most recently serving as Vice President Finance from December 2017 to December 2018. Mr. Ryali was responsible for leading the finance department from Aimmune’s 2015 initial public offering, and subsequently was involved in operational preparation for the company’s first product approval. Previously, Mr. Ryali led US Financial Planning and Analysis at Jazz Pharmaceuticals, plc. and was Head of Corporate Finance at Onyx Pharmaceuticals, Inc., until the company was acquired by Amgen, Inc. in 2013 for $10.4 billion. Following the acquisition, he continued as Head of R&D, Technical Operations, and Medical Affairs Finance at Onyx. Mr. Ryali began his career in the biopharmaceutical industry at Amgen Inc., where he held positions of increasing responsibility in the finance organization from 2004 to 2011. Mr. Ryali earned a BA from The University of California, Los Angeles (UCLA) with a double major in Economics and Microbiology, Immunology & Molecular Genetics and an MBA from the UCLA Anderson School of Management.
Kevin Norrett, MBA
Chief Operating Officer
Mr. Norrett brings over two decades of experience across commercial strategy, business operations and corporate development for both established and emerging biotechnology companies. Most recently, he served as Chief Business Officer of Sierra Oncology. There, he led commercial operations and corporate development and communications and completed the $1.9 billion acquisition by GSK. Prior to Sierra Oncology, Mr. Norrett was Chief Commercial Officer at Angion Biomedica, setting commercial strategy and positioning for its pipeline and its successful IPO. Previously, he served as Vice President of Marketing, Market Access and Commercial Operations at Aimmune Therapeutics, acquired by Nestle Health Science, where he built commercial operations for the launch of Palforzia®, the first approved therapy for pediatric peanut allergy. Prior to joining Aimmune, Mr. Norrett was Vice President, Market Access and Commercial Development at ZS Pharma, acquired by AstraZeneca for $2.7 billion. Mr. Norrett also held increasingly senior commercial leadership roles at Exelixis and Genentech, where he launched multiple products across oncology and rare disease. Kevin also served as an Associate in SG Cowen’s Health Care Investment Banking Group, closing over 20 transactions worth over $2 billion. Mr. Norrett earned an M.B.A. from the Haas School of Business at the University of California, Berkeley, an M.S. in Biochemistry and Molecular Biology from University of California, Los Angeles and a B.S. in Biological Sciences from the University of California, Davis.
Meg Fitzgerald, JD
Chief Legal and Compliance Officer, General Counsel and Secretary
Ms. Fitzgerald brings over twenty years of experience across the biotechnology industry. Most recently, she served as Senior Vice President, General Counsel, Corporate Secretary and Chief Compliance Officer at Allakos Inc., where she provided strategic legal advice on securities, litigation, IP strategy, clinical development, and commercialization. Prior to Allakos, Ms. Fitzgerald was Associate General Counsel and Privacy Officer at Aimmune Therapeutics, Inc. Previously, she served as Vice President of Corporate Law at ZS Pharma, Inc., where she chaired negotiations, resulting in the $2.7 billion sale of ZS Pharma to AstraZeneca. Earlier in her career, Ms. Fitzgerald held increasingly senior leadership roles at Genentech, Inc., ultimately serving as Associate General Counsel and Director of Transactional Law. Ms. Fitzgerald also served as an Associate Attorney at Pillsbury Winthrop Shaw Pittman. She holds a J.D. from University of California, Berkeley, as well as both an M.A. and B.A. in History from Stanford University.
Senior Vice President, Head of Human Resources
Ms. Frechou-Armijo is an accomplished human resources leader with over two decades of human resources experience, holding increasingly senior positions within life sciences and technology companies. Most recently, she served as Vice President, Human Resources at Cepheid, a molecular diagnostics company and part of the Danaher family of operating companies. During her tenure, she lead Cepheid’s workforce through rapid expansion and transformation, increasing employee headcount by greater than seven times over a five year period. Prior to Cepheid, Ms. Frechou-Armijo held senior Human Resource roles at Broadcom, where she led workforce strategy, change management and talent management. She also previously held human resources management roles with Molecular Devices, KPMG, and Genencor. She is known for leading through a culture of innovation, collaboration and continuous improvement. Ms. Frechou-Armijo received her B.A. from California State University, Chico.
Stefan Lutz, Ph.D.
Senior Vice President, Research
Stefan Lutz joined Codexis in 2020 as the Senior Vice President of Research to lead the company’s research team advancing the discovery of proteins. Prior to his arrival in Redwood City, he was a Professor and Chair of the Chemistry Department at Emory University, having joined the university in 2002 and ascending to Chemistry Department Chair in 2014. In addition to his academic work, he has consulted for AgriMetis and served on the scientiﬁc advisory boards of ZuvaChem, CODA Genomics Inc. and SynBioX Inc. Stefan has co-authored more than 65 articles published in peer-reviewed journals and six technical books and journals. He holds six patents and is a frequent lecturer and speaker. Dr. Lutz received a B.Sc. in chemistry/chemical engineering from the Zurich University of Applied Sciences, an M.Sc. in Biotechnology from the University of Teesside and a Ph.D. in chemistry from the University of Florida. He was a postdoctoral fellow at Pennsylvania State University.
Robert Sato, Ph.D., MBA
Senior Vice President, Pharmaceutical Development, Quality & Regulatory
Bob Sato joined Codexis in 2007 as the Director of Analytical Development & Quality Control and his responsibilities have since expanded to include Quality and Regulatory. He brings close to 30 years of fine chemical and pharmaceutical industry experience in GMP Quality Control, analytical development, physicochemical characterization and preformulation/formulation development. His pharmaceutical development work has contributed to a wide range of successful regulatory filings in the therapeutics space, most recently where he provided crucial support leading to the success of Codexis’ first Phase I clinical trial.