Lawrence (Larry) Alleva has served as our Chairman since November 2025 and as a Non‑Executive Director since March 2015. Mr. Alleva is a former partner with PricewaterhouseCoopers LLP (PwC), where he worked for 39 years from 1971 until his retirement in June 2010, including 28 years’ service as a partner.

Mr. Alleva worked with numerous pharmaceutical and biotechnology companies as clients and, additionally, served PwC in a variety of office, regional and national practice leadership roles, most recently as the U.S. Ethics and Compliance Leader for the firm’s Assurance Practice from 2006 until 2010.

Mr. Alleva currently serves as a director for public companies Bright Horizons Family Solutions, Inc. (NYSE: BFAM), Mersana Therapeutics, Inc. (Nasdaq: MRSN) and Galera Therapeutics, Inc (Nasdaq: GRTX) and chairs the audit committee for those companies. He previously served as a director of Mirna Therapeutics, Inc. (NYSE: MIRN) and TESARO, Inc. (Nasdaq: TSRO), and of GlobalLogic, Inc. through the sale of the company in 2013 and chaired the audit committee for those companies. 

Mr. Alleva is a Certified Public Accountant (inactive). He received a B.S. degree in Accounting from Ithaca College and attended Columbia University’s Executive M.B.A. non-degree program.

Christopher (Chris) Hill has served as our Chief Executive Officer since November 14, 2025 and as our Chief Financial Officer since September 10, 2025.

Mr. Hill has over 10 years experience of serving in chief financial officer and chief operating officer roles in public and private life science companies. From September 2021 through September 9, 2025, he served as Chief Financial Officer and Chief Operating Officer (“COO”) of Istesso Limited, a private drug development company with pre-clinical to phase IIb assets developing new therapies in auto-immune and fibrotic diseases. Previously, Mr. Hill served as part-time Chief Financial Officer of Ixaka Limited, a private cell therapy company, from April 2020 through September 2021 and as Finance Director of OxSonics Therapeutics Limited, a private clinical stage therapeutics company developing improved drug delivery solutions to solid tumour cancers, from March 2019 through September 2021.

Mr. Hill served as Chief Financial Officer and a member of the Board of Directors of Oxford Pharmascience Group Plc, formerly a publicly listed drug development company on AIM focused on gastro-safe NSAIDs, from October 2013 through January 2018. Mr. Hill had responsibility for the financial, legal and HR functions within the group and for AIM and other regulatory reporting. During his tenure, the company underwent a demerger, and its operations were spun out into Abaco Capital (AIM: ABAA) and private company, Oxford Pharmascience Limited. His other prior roles include serving as Group Financial Controller at Ora Capital Partners Limited, previously an AIM-listed investment vehicle, from July 2010 through October 2013, and as Audit Senior at international audit, professional services and consulting firm, Grant Thornton UK LLP, from June 2005 to June 2010. He currently serves as a director of private companies, Connexin Therapeutics Group Limited and CJH Financial Limited.

Mr. Hill is a chartered accountant and holds a B.A. degree in Economics and Public Policy from Leeds Metropolitan University.

Dr. Garry Menzel has served as a Non-Executive Director since June 2023 following the merger of Adaptimmune with TCR² Therapeutics. He formerly served as a board member and Chief Executive Officer of TCR² from 2016 to June 2023.

Dr. Menzel has over 25 years of experience in building healthcare businesses and leading high-performing teams of professionals. His versatile career has included operational roles covering drug development, manufacturing, commercialization, financing, and M&A. Prior to TCR², he was the Chief Financial Officer at DaVita Healthcare (NYSE: DVA), a kidney dialysis and primary care physician company, and the Chief Operating Officer at Regulus Therapeutics (Nasdaq: RGLS), a microRNA therapy company. Dr. Menzel also had global leadership roles in running the biotechnology practices at Goldman Sachs and Credit Suisse where he advised on more than $100 billion in strategic transactions. In addition, he was a consultant with Bain & Company.

Dr. Menzel was a founding board member of Fierce 15 award winner Black Diamond Therapeutics (Nasdaq: BDTX), a clinical stage precision oncology company, and serves as chair of the audit committee. He also currently serves as a board member of Stoke Therapeutics (Nasdaq: STOK), a clinical stage biotechnology company using novel antisense oligonucleotide medicines to treat severe genetic diseases, as an operating partner of GHO Capital Partners LLP and as president of RoslinCT, a privately held contract development and manufacturing services organization focused on cell and gene therapies.

Dr. Menzel earned his Ph.D. from the University of Cambridge for studying the regulation of oncogenes in immune cells. He also has a M.B.A. from the Stanford Graduate School of Business.