Corporate Governance

Mr. Clark has more than 30 years of biopharmaceutical experience. He is currently the CEO of Altido Therapeutics. Before joining Altido, he was the Co-founder and CEO of Vibrant Biomedicines, a venture-backed developer of vaccines targeted bacterial pathogens. Prior to joining Vibrant Biomedicines, Mr. Clark served as Chief Executive Officer of Nasdaq-listed biopharmaceutical company, Genocea Biosciences, Inc. Prior to joining Genocea, Mr. Clark was Co-founder and Chief Business Officer at Vanda Pharmaceuticals Inc., a company he co-founded in 2004. Previously, he was a Principal at Care Capital, LLC, and worked at SmithKline Beecham Corporation (now part of GlaxoSmithKline plc) in a variety of strategic and operational roles. Mr. Clark holds an MBA from The Wharton School at the University of Pennsylvania and a BA from Harvard University.

Dr. Brenner has a strong history of success heading drug discovery and development teams at several of the world’s leading pharmaceutical companies, including AstraZeneca, Eli Lilly and Company, Pfizer Inc., and Merck Research Laboratories. Most recently, Dr. Brenner served as the CSO at Pfenex Inc., which, using its patented Pfēnex Expression Technology® platform, created an advanced pipeline of therapeutic equivalents, vaccines, biologics and biosimilars. Pfenex was acquired by Ligand Pharmaceuticals Incorporated for approximately $516 million in October 2020.

Previously, Dr. Brenner served as the CSO at Recursion Pharmaceuticals, Inc., a company focused on accelerating drug discovery for rare diseases and diseases with high unmet medical need. Prior to his time at Recursion, he was Vice President and Head of Research & Early Development at Stoke Therapeutics, Inc., a biotechnology company using antisense oligonucleotides to increase gene expression for the treatment of rare diseases. Prior to Stoke, he was Executive Director at Merck, where he built a biotech unit from scratch, focusing his team’s research on diabetes and nonalcoholic steatohepatitis (NASH). Earlier in his career, Dr. Brenner was the Senior Director and Head of cardiovascular, renal, and metabolism (CVRM) biosciences at AstraZeneca. In addition, Dr. Brenner was an Associate Research Fellow at Pfizer where he led the islet biology and in vivo pharmacology in the CVMED Target Exploration Unit before assuming the role of Head of the Insulin Resistance Group.

David Arkowitz brings over 30 years of experience in finance, operations, business development, and commercial leadership within the life sciences and biotech sectors. He is currently the CFO of Alkeus Pharmaceuticals, a privately held late-stage biopharma company focused on preserving sight in individuals with retinal diseases. Before joining Alkeus, Mr. Arkowitz was EVP, CFO, and Head of Business Development at Seres Therapeutics. He also served as CFO at Flexion Therapeutics, which was acquired by Pacira Biosciences, and as COO and CFO of Visterra, acquired by Otsuka Pharmaceuticals. Earlier in his career, he held CFO roles at Mascoma, AMAG Pharmaceuticals and Idenix Pharmaceuticals, where he also contributed in various leadership capacities. Mr. Arkowitz spent over 13 years at Merck, where he was VP and Controller of the U.S. pharmaceutical business, Controller of the global R&D division, and CFO of Merck’s Canadian subsidiary. In addition to his executive roles, Mr. Arkowitz serves on the board of directors of Kineta and has previously been a board member of F-star Therapeutics, Yumanity Therapeutics, Spring Bank Pharmaceuticals, Proteostasis Therapeutics, Aegerion Pharmaceuticals, and ImpactRx.

Dr. Kropotova is a biopharmaceutical executive with 20+ years of global R&D experience in all phases of global clinical development, translational medicine, and medical affairs. Currently, she is Executive Vice President & Chief Medical Officer at SAb Biotherapeutics, leading the strategy, direction, and execution of the company’s portfolio of innovative polyclonal antibody assets. Prior to joining SAb Biotherapeutics, Dr. Kropotova was Therapeutic Area Head of Global Specialty R&D at Teva Pharmaceuticals, leading innovative drug development across a broad portfolio of immunology and immuno-oncology assets spanning from pre-IND to BLA/NDA filing of biologics and complex drug-device combination products. Dr. Kropotova also served in various roles at Sanofi, including Vice President, Strategy & Strategic Planning Head, North American Medical Affairs; Associate Vice President and subsequently Vice President, Immuno-Inflammation, Global R&D Clinical Development; and Senior Medical Director, Respiratory, Allergy & Anti-Infectives. She also served in various roles at Wyeth and Pfizer. Dr. Kropotova received her MBA from Ohio University Graduate School of Business, Athens, Ohio; and her M.D. in Internal Medicine from the Vladivostok State Medical University, Vladivostok, Russia.

António Parada is the Founder and most recently served as the CEO of FairJourney Biologics, a leading antibody discovery company supporting over 250 global clients. He founded the company in May 2012, and in June 2024, Partners Group acquired a majority stake in FairJourney. Previously, Mr. Parada was General Manager of Instituto de Biologia Molecular e Celular (IBMC) in Porto, Portugal (2002–2013), Manager of the Clinical Trial Unit at IPO Porto (2011–2012), and Site Manager of Ablynx's “Centre of Excellence in Phage Display” (2008–2012). In 2002, he founded the BioCodex Group, a consulting firm, and served as CEO until 2008. Mr. Parada was also a Board Member of CDEMAC (2014–2017) and is currently Chairman of the Supervisory Board of EMBLEM since 2011. He has authored 15 peer-reviewed publications in pharmacology and others in botany, management, and security. Mr. Parada holds a degree from the University of Porto and an MBA from the Portuguese Catholic University. He has received the Medal of Merit from Porto and a career award from Matosinhos.

Gary Sender is currently President of Sender Consulting LLC and previously served as the Chief Financial Officer of Nabriva Therapeutics plc from 2016 until his retirement in 2021. Nabriva is a Nasdaq-listed biopharmaceutical company engaged in the commercialization and development of innovative anti-infective agents to treat serious infections. Prior to joining Nabriva, he served as CFO and Executive Vice President at Synergy Pharmaceuticals from 2015 to 2016. From 2009 until 2015, Mr. Sender served as Senior Vice President, Finance at Shire Plc., supporting its Specialty Pharmaceuticals business and subsequently its Global Commercial businesses. Mr. Sender also serves on the board of directors of Schrodinger Inc., Harmony Biosciences Holdings, Inc. and Elucida Oncology. He is the Chairman of the three Board’s Audit Committees. Mr. Sender received his B.S. from Boston University and an M.B.A from Carnegie‑Mellon University.

Dr. Elizabeth (Liz) Stoner is a distinguished biopharma executive, who brings decades of international industry experience to her role guiding and growing bio-tech companies. She is currently an Entrepreneur Partner at MPM BioImpact, supporting both private and public funds. Liz has held several leadership roles at MPM BioImpact portfolio companies including interim Chief Executive Officer of Semma Therapeutics and Founder, Chief Medical Officer and Chief Development Officer of Rhythm Pharmaceuticals, Inc. She also served in clinical and advisory roles at Clinical Ink, Inc., Potenza Therapeutics, Inc., Solasia Pharma, Werewolf Therapeutics, Inc. and TriNetX, LLC. Prior to joining MPM BioImpact, Liz was Senior Vice President of Global Clinical Development Operations at Merck Research Laboratories where she was responsible for its clinical development activities in more than 40 countries. While at Merck, she also oversaw the clinical development activities of its Japanese subsidiary and lead the Merck/Schering Plough Joint Venture development of Vytorin® and Zetia®, blockbuster cholesterol lowering drugs. Previously, she led the 5-alpha reductase clinical development program, establishing Merck as a leader in the field of prostate disease. Prior to joining the biopharma industry, she was an Assistant Professor of Pediatrics at Cornell University Medical College. Liz currently serves as a member of the board of two privately held, clinical stage biopharmaceutical companies, LIB Therapeutics, since 2016, and Antiva Bioscience, since 2023. She also served as a member of the board of Arovella Therapeutics Ltd., a biotechnology company traded on the Australian Securities Exchange, from November 2021 until February 2026.She is also a member of the Albert Einstein College of Medicine Board of Governors and the Weill Cornell Medical College Clinical and Translational Science Center External Advisory Board. Liz received her M.D. from the Albert Einstein College of Medicine, M.S. in Chemistry from SUNY at Stony Brook, New York and B.S. in Chemistry from Ottawa University, Kansas.