Thank you, Gigi and thank you all for joining us for the Exelixis' Second Quarter 2019 Financial Results Conference Call. Joining me on today's call are Mike Morrissey, our President and CEO; Chris Senner, our Chief Financial Officer; Peter Lamb, our Chief Scientific Officer; Gisela Schwab, our Chief Medical Officer, and P.J. Haley, our Senior Vice President of Commercial who will together review our corporate, financial, research development and commercial progress for the second quarter ended June 30, 2019. We will keep our comments relatively brief to allow for questions at the end of the call. During the call today, we will refer to financial measures not calculated according to Generally Accepted Accounting Principles. Please refer to today's press release, which is posted on our website for an explanation of our reasons for using such non-GAAP measures, as well as tables deriving these measures from our GAAP results. During the course of this presentation, we will be making forward-looking statements regarding future events and the future performance of the Company. This includes statements about possible developments regarding discovery, product development, regulatory, commercial, financial and strategic matters. Actual events or results could, of course, differ materially. We refer you to the documents we file from time-to-time with the SEC, which under the heading Risk Factors identify important factors that could cause actual results to differ materially from those expressed by the Company verbally and in writing today including without limitation risks and uncertainties related to product, commercial success, market competition, regulatory review and approval processes, conducting clinical trials, compliance with applicable regulatory requirements, our dependence on collaboration partners and the level of cost associated with the discovery, product development, business developments and commercialization, activities. Now with that, I will turn the call over to Mike.