|Jennifer McNealey||Vice President of Investor Relations|
|Susan Molineaux||Founder, President and Chief Executive Officer|
|Keith Orford||Chief Medical Officer|
|Stephanie Wong||Chief Financial Officer|
|Rob Andrew||William Blair|
Good day and thank you for standing by. Welcome to the Calithera Biosciences First Quarter 2021 Earnings Call. At this time, all participants are in a listen-only mode. After the speaker presentation there will be a question-and-answer session. [Operator Instructions] I would now like to hand the conference over to your first speaker today, Stephanie Wong.