Repligen Corporation (NASDAQ:RGEN) today announced that Walter C. Herlihy, Ph.D., President and Chief Executive Officer, will be presenting at two investor conferences in November. Dr. Herlihy will first participate in the Stephens Fall Investment Conference on November 14, and will later present at the Piper Jaffray 24 th Annual Healthcare Conference on November 27. Both conferences will take place at The New York Palace Hotel. At each, Dr. Herlihy will provide a corporate update and address questions from the audience. Repligen’s presentation at the Piper Jaffray Annual Healthcare Conference will be webcast and made available live through the Investors section of Company’s website at www.repligen.com. This presentation is currently scheduled to begin on Tuesday, November 27 at 8:50 a.m. EST. To access the live webcast, please log on approximately 15 minutes prior to the scheduled start time. The webcast will also be archived for a period of time on the Company’s website. About Repligen Corporation 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. Our bioprocessing products are sold to major life sciences and biopharmaceutical companies worldwide. We are a leading manufacturer of Protein A, a critical reagent used during the production of monoclonal antibody therapeutics. We also supply several growth factor products used to increase cell culture productivity during fermentation. In the burgeoning area of disposable biomanufacturing technologies, we have developed and market a series of OPUS ®(Open Platform User Specified) pre-packed chromatography columns for use in clinical-stage and/or niche biologics manufacturing. In addition to our core bioprocessing business, we have a portfolio of clinical-stage partnering assets, including our pancreatic imaging agent in Phase 3 development and two central nervous system orphan drug candidates. Repligen’s corporate headquarters are located in Waltham, MA, USA; we have an additional manufacturing facility in Lund, Sweden. For more information, please visit our website at www.repligen.com. This press release may contain forward-looking statements within the meaning of the federal securities laws. Investors are cautioned that statements in this press release which are not strictly historical statements including, without limitation, statements identified by words like “believe,” “expect,” “may,” “will,” “should,” “seek,” or “could” and similar expressions, constitute forward-looking statements. Such forward-looking statements are subject to a number of risks and uncertainties that could cause actual results to differ materially from those anticipated, including, risks discussed from time to time in our filings with the Securities and Exchange Commission. We expressly disclaim any responsibility to update forward-looking statements, except as required by law.