Cosmas Giallourakis, MD

Venture Partner — Consultant

Cosmas Giallourakis is a Venture Partner — Consultant at Raven, focusing on new company creation. Cosmas brings to Raven over a decade of leadership experiences at the interface of basic science, drug development and clinical care. Prior to Raven, Cosmas was an Entrepreneur-in-Residence at Third Rock Ventures and was part of the teams that built Asher Bio (cell targeted biologics for oncology/​autoimmune diseases) and Septerna (GPCR focused drug discovery) as well as other NewCOs in development. In addition, Cosmas has co-founded companies including Design Pharma (synthetic bio) and a company in stealth focused on RNA-based genetic medicines. Prior to this, Cosmas was a Director at Takeda Pharmaceuticals where he was responsible for developing multiple partnerships and platforms on emerging technologies, along with leading drug development teams in cell and gene therapies. Before transitioning to industry, Cosmas was a faculty member at Harvard Medical School/​Massachusetts General Hospital (MGH), where he had an active gastroenterology clinical practice and ran a lab whose research centered on fundamental aspects of RNA and epigenetics. Cosmas’s academic research has been published in journals such as Cell, Science, and Nature. Cosmas received his BS in Physics from Massachusetts Institute of Technology and his MD from Rutgers-New Jersey Medical School. He completed his residency in internal medicine at Yale-New Haven Hospital and completed his clinical gastroenterology fellowship at Massachusetts General Hospital / Harvard Medical School as well post-doctoral training with Frederick Alt, an HHMI investigator, in molecular immunology.