Repligen Corporation is a life sciences company focused on the development, production and commercialization of high-value consumable products used in the process of manufacturing biological drugs. Their bioprocessing products are sold to major life sciences and biopharmaceutical companies worldwide. They are a leading manufacturer of Protein A, a critical reagent used to separate and purify monoclonal antibody therapeutics. They also supply several growth factor products used to increase cell culture productivity during the fermentation stage of drug manufacturing. In addition, they have developed and marketed their OPUS? series of pre-packed `plug-and-play` chromatography columns, and they provide test kits to ensure final product quality. Aside from their core bioprocessing business, they have a portfolio of clinical-stage partnering assets, including a pancreatic imaging agent in Phase 3 development and an orphan drug candidate in Phase 1 development.