Operator
Operator
Good day ladies and gentlemen and welcome to Repligen Corporation's Fourth Quarter and 2020 Earnings Conference Call. My name Sarah and I will be your coordinator. All participations will be in listen-only mode. [Operator Instructions]. This event is being recorded. Please note that there will be a question-and-answer session following the company’s formal remarks. In order to accommodate all individuals who wish to ask questions there will be a limit of two questions at a time. I would now like to turn the call over to your host for today's call, Sondra Newman, Head of Investor Relations for Repligen.