Thank you and good afternoon, everyone. Welcome to today's call, during which we will provide an update on the company and review our fourth quarter and full year 2021 financial results. Earlier today we issued a press release summarizing our financial results and progress across the company which is available on our website at schrodinger.com. Here with me on our call today are Ramy Farid, Chief Executive Officer; Joel Lebowitz, Chief Financial Officer; and Karen Akinsanya, President of R&D Therapeutics. Following our prepared remarks, we'll open the call for Q&A. I'd like to remind you that during today's call, management will make statements related to our business that are forward looking and are made pursuant to the Safe Harbor provisions of the Private Securities Litigation Reform Act of 1995, including, without limitation, statements related to our future financial performance, including our outlook for the full year 2022 and the quarter ending March 31st, 2022; our strategic goals for 2022 and 2023; the potential advantages of our platform; our strategic plans to accelerate the growth of our software business and advance our collaborative and internal drug discovery programs; risks relating to the COVID-19 pandemic; our expectations related to the use of our cash, cash equivalents, and marketable securities, as well as our future operating expenses. These forward-looking statements reflect our current views about our plans, intentions, expectations, strategies, and prospects, which are based on the information currently available to us and on assumptions we have made. Actual results may differ materially from those described in the forward looking statements and are subject to a variety of assumptions, uncertainties, risks, and important factors that are beyond our control, including the demand for our software solutions, our ability to develop our computational platform, our reliance upon our drug discovery collaborators, and other risks detailed under the caption Risk Factors and elsewhere in our most recent Securities and Exchange Commission filings and reports. Except as required by law, we undertake no duty or obligation to update any forward-looking statements discussed on this call as a result of new information, future events, changes in expectations or otherwise. These forward-looking statements should not be relied upon as representing our views as of any date subsequent to today. During this call, we will also discuss certain financial and operating metrics which are further described in our financial results, press release, and SEC filings. With that, I'd like to turn the call over to Ramy.