Thank you, Catharine, and good afternoon everyone. My name is Bob Burrows, VP of Investor Relations for the company. Thank you for joining us today as we discuss the operational and financial results for the fourth quarter and 12 months ended December 31, 2020. As is customary, today's call is open to all participants and the call is being recorded and is copyrighted by Emergent BioSolutions. In addition to today’s press release, there are slides accompanying this webcast available to all webcast participants. Turning to slides three and four, during today's call we may make projections and other forward-looking statements related to our business, future events, our prospects or future performance. These forward-looking statements are based on our current intentions, beliefs and expectations regarding future events. Any forward-looking statement speaks only as of the date of this conference call and except as required by law we do not undertake to update any forward-looking statement to reflect new information, events or circumstances. Investors should consider this cautionary statement, as well as the risk factors identified in our periodic reports filed with the SEC when evaluating our forward-looking statements. During today's call, we may also refer to certain non-GAAP financial measures that involve adjustments to GAAP figures in order to provide greater transparency regarding Emergent's operating performance. Please refer to the tables found in today's press release regarding our use of adjusted net income, adjusted EBITDA, and adjusted gross margin and the reconciliations between our GAAP financial measures and these non-GAAP financial measures. Turning to slide five, the agenda for today's call will include Bob Kramer, President and Chief Executive Officer; who will comment on the current state of the company and Rich Lindahl, Chief Financial Officer, who will speak to the financials for 4Q and full year 2020, as well as our forecast for 2021. This will then be follow by a Q&A session where additional members of the senior team are present and available as needed. Finally, for the benefit of those who may be listening to the replay of this webcast, this call was held and recorded on February 18, 2021. Since then Emergent may have made announcements related to topics discussed during today's call. And with that introduction, I would now like to turn the call over to our President and CEO, Bob Kramer, whose segment begins with slide six. Bob?