Thomas F. Isett

Chief Executive Officer & Chairman of the Board

Prior to becoming CEO for iBio in March 2020, Mr. Isett played an integral part in reshaping the Company’s strategy and operations in his role as Board Member and Strategic Advisor since April 2019. He was able to contribute his deep management and strategic insights via the consulting firm he founded in 2015, i.e. Advising, LLC, which supported Fortune 500s, institutional investors, biotechs and non-profits alike with M&A, turnarounds, and more. 

Previously, he ran business units for GE, Lonza, and BD, ranging in size from start-up to a half billion in revenues. Notably, he founded BD Advanced Bioprocessing (which sold to ThermoFisher in 2018 for $477M), and Commence Bio, Inc. a cellular immunotherapy company. Mr. Isett received his B.Sc. degree with Honors in Biological Sciences from Drexel University.

Randy J. Maddux

Chief Operating Officer

Mr. Maddux has more than 20 years of global biologics drug development and manufacturing, business development and relationship management experience. Before joining iBio in December 2020, he was SVP and Chief Manufacturing Officer at Aptevo Therapeutics. Previously, Mr. Maddux was VP and Site Director at GlaxoSmithKline, where he led the largest biopharmaceutical development and manufacturing site within the GSK manufacturing network and was instrumental in launching a successful contract development and manufacturing (CDMO) services business. Prior to GSK, he was VP Quality and Operations at Human Genome Sciences and held positions of increasing responsibility within Biogen’s Quality organization. During his career, Mr. Maddux has served in key roles supporting the licensure and commercial launch of several biopharmaceutical products. He holds an MBA in Operations and Statistics from Duke University, Fuqua School of Business and a BS Professional in Analytical Chemistry from East Carolina University.

Martin B. Brenner

Chief Scientific Officer

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.