Stephen Dilly, MBBS, Ph.D.

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.

Ross Taylor, MBA

Ross Taylor, MBA

Senior Vice President and Chief Financial Officer

Ross Taylor has over 20 years of healthcare financial leadership experience. Most recently he was CFO of Abaxis, a point-of-care diagnostics company serving the veterinary and human healthcare markets, and he previously was that firm’s vice president of business development and investor relations. Prior to Abaxis, Mr. Taylor worked for more than 20 years in equity research at various Wall Street firms including CL King & Associates, UBS, and Smith Barney. Mr. Taylor holds an MBA from Columbia Business School with concentrations in accounting and finance, and a bachelor’s degree in economics from Duke University.

Karen Frechou-Armijo

Karen Frechou-Armijo

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.

Gjalt Huisman, Ph.D.

Gjalt Huisman, Ph.D.

Senior Vice President, Strategic Development & General Manager, Biotherapeutics

As a founding scientist of Codexis (2002), Gjalt Huisman is a 20-year veteran in the application of Directed Evolution technologies. He joined Codexis’ mother company Maxygen in 1998 and since then had leadership roles in various internal and collaborative programs. In 2013 he initiated Codexis’ Biotherapeutics group which discovered CDX-6114 for potential treatment of PKU. He is the co-inventor of more than 50 patents. Earlier in his career, he was a founding scientist at Metabolix. A native of the Netherlands, Dr. Huisman received his PhD from the University of Groningen, and performed post-doctoral studies at Harvard Medical School.

Rob Wilson, Ph.D.

Rob Wilson, Ph.D.

Senior Vice President & General Manager, Performance Enzymes

Rob Wilson leads the Performance Enzyme strategic business unit for Codexis and has been with the company since 2006. He has held a variety of business-operational roles at Codexis, across Biotherapeutics and Performance Enzymes, in postings in Europe, Asia and the USA. Prior to joining Codexis, Rob worked for 7 years in various business-technical roles for Avecia - a major UK-based custom manufacturer of intermediates and APIs for the Pharma industry. Today, Rob is P&L responsible for Performance Enzymes and leads a broad-based team at Codexis, responsible for building business and executing projects in existing and emerging markets for the industrial application of improved proteins. He earned a BSc in chemistry and a Ph.D. in organic chemistry from the University of Leeds in the UK.

Stefan Lutz, Ph.D.

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.

Karl Schoene, Ph.D.

Karl Schoene, Ph.D.

Senior Vice President, Development & Operations

Dr. Schoene joined Codexis in 2020 as Senior Vice President of Development and Operations. He will be leading Codexis’ manufacturing and supply chain operation teams to developing, scaling and commercializing Codexis’ growing suite of products discovered in small scale under our CodeEvolver® process. He most recently served as President, CEO and Director of Elevance Renewable Sciences, positions he held for four years after first serving as Chief Technology Officer. During his tenure, he led the rapid development of high-performing, environmentally friendly specialty chemical products, managed international joint ventures and oversaw product manufacturing using the company’s proprietary technology. Prior to Elevance, he worked for 15 years at companies such as Accutest, InEnTec, and AkzoNobel. Since 2013, Dr. Schoene has served as Chairman of Ionic Solutions LLC, a firm he founded to advise businesses in the medical, pharmaceutical, chemical, energy and adjacent industries. Dr. Schoene holds a B.S. in chemistry and a Ph.D. in physical chemistry from the University of Virginia, where he was also appointed to the faculty as an instructor of physical chemistry.

Robert Sato, Ph.D., MBA

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.

Asli Aras, Ph.D.

Asli Aras, Ph.D.

Vice President and Head of Corporate Development

As the Head of Corporate Development of Codexis since November 2021, Asli brings over two decades of global experience creating enduring value for companies in the life sciences sector, having closed more than 30 deals with total value exceeding $3.5 billion, with expertise across corporate development, investment banking, mergers and acquisitions, and strategic planning. She joined Codexis from Woodside Capital Partners, where she was a Managing Director and provided M&A and strategic financing advice to health-tech companies with breakthrough technologies. She led dozens of transactions, including acquisitions as well as early-stage investments. She previously served at Agilent Technologies for 13 years, most recently as Associate Vice President, Strategy and Corporate Development, where she was responsible for all aspects of deal sourcing and transaction processes. Dr. Aras received her Ph.D. in Finance from Bogazici University in Turkey, her M.S. in Accounting and Finance from The London School of Economics and Political Science, and her B.S. in Management from Bilkent University in Turkey.