David Johnston is a financial leader with over thirty years of experience. He has held senior financial positions in several life science companies, including ImmunoGen, Aveo Oncology, and Genzyme Biosurgery. David is currently the CFO of dbj Consulting LLC, providing financial and strategic advice to emerging life science companies. Previously, he was the Chief Financial Officer for ImmunoGen, Inc., leading several public offerings and a creative non-dilutive royalty financing. He also served as CFO for Aveo Oncology and Genzyme Biosurgery. He led their initial public offerings in both positions and oversaw numerous other strategic initiatives. David earned his MBA from the University of Michigan and his B.S. from Washington and Lee University.