13D Amendment Filed for RepliGen Corporation
RepliGen Corporation is a biopharmaceutical  company focused on building an integrated company by developing and marketing innovative drugs that deliver the benefits of protein therapies in the fields of neurology and gastroenterology. RepliGen has a core competency in the development and manufacturing of biologics products, which serve as the basis for the bioprocessing business. RepliGen has out-licensed certain biologics intellectual property, which provide an ongoing source of revenue . RepliGen's corporate headquarters are located in Waltham, Massachusetts.
Mr. Ronald L. Chez is the President of Ronald L. Chez, Inc., and a private investor.