Management
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Sarah Howell, Ph.D., Chief Executive Officer and Executive Director
Sarah Howell has been Chief Executive Officer of Arecor since 2015.
READ MORE ↓READ LESS ↑Through her leadership, Arecor has grown significantly into a publicly listed clinical stage biopharmaceutical company. Since her appointment, Sarah has led Arecor through a period of continued growth and transformation, playing an instrumental role in progressing its proprietary pipeline and strengthening important collaborations with global partners.
Sarah has a background in clinical and commercial pharmaceutical product development, manufacturing, supply and licensing across a range of product types and therapeutic areas, with previous senior roles in the pharmaceutical industry including Vice President CMC & Technical Development at BTG Plc., and Director of Outsourced Manufacturing at UCB-Celltech. Sarah holds a BSc in Chemistry from the University of Birmingham and a Ph.D. in Physical Organic Chemistry from the University of St Andrews.
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David Ellam, Chief Financial Officer and Executive Director
David is an experienced finance professional and chartered accountant, with over two decades of experience in the life sciences industry.
READ MORE ↓READ LESS ↑He was appointed as interim Chief Financial Officer (CFO) in November 2024, became full time CFO in February 2025. He was appointed as an Executive Director in September 2025. Before joining Arecor, he has held CFO roles at numerous healthcare companies including Sixfold Bioscience, Silence Therapeutics, and Juvenescence. He qualified as a Chartered Accountant at PwC.
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Jan Jezek, Ph.D., Chief Scientific Officer
Jan Jezek has been Chief Scientific Officer of Arecor since 2007 and has led R&D for the proprietary protein stabilisation technologies of the company’s Arestat® platform and their application to commercial therapeutic products. Jan is responsible for R&D activities, platform development and IP strategy.
READ MORE ↓READ LESS ↑Previously, he was a Principal Scientist at Insense Limited, a spin-out from Unilever, where he was responsible for the development of novel medical devices, taking them from concept to market.
Jan holds a joint Doctorate from the University of Bedfordshire and the University of Chemical Technology, Prague. He is a member of the Scientific Advisory Board of the Centre of Excellence in Biopharmaceuticals (University of Manchester) and is an active member of the Formulation Science & Technology Group (FSTG) at the Royal Society of Chemistry and the Biopharmaceutical Group at the Academy of Pharmaceutical Sciences (APS).
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David Gerring, Chief Development Officer
David has 15 years’ experience in pharmaceutical product and analytical development, as well as significant regulatory and quality experience. He is Chief Development Officer at Arecor, with a wide range of responsibilities, including: scientific strategy, project management, facilities, health & safety, quality and client procurement, grant and internal product development management.
READ MORE ↓READ LESS ↑He has held senior roles at Immunocore and Emergent BioSolutions and his experience includes 5 years at UCB, whilst in a scientific and regulatory capacity. There, he focused on the development and successful licensure of Cimzia. He headed up process and analytical development at BTG, managing CMC for several recombinant products, including successful INDs and licensures.