Codiak BioSciences is harnessing exosomes—natural intercellular messengers—to pioneer a new class of biologic medicines, exosome therapeutics. We have developed the engEx Platform, our proprietary and versatile exosome engineering and manufacturing platform, to expand upon the innate properties of exosomes to design novel exosome therapeutics. Using our engEx Platform, we can engineer exosomes to have precise and intentionally chosen properties, to incorporate various forms of biologically active molecules, including small molecules, nucleic acids, proteins, antibodies, enzymes, cytokines and complex ligands, with the goal of delivering potent signals to specific cell targets. We believe our engEx Platform has the potential to produce a broad pipeline of product candidates that will have a transformative impact on the treatment of many diseases, including in the areas of oncology, immune-based diseases, metabolic and fibrotic disorders, neurodegenerative disorders and rare diseases.