Personalis to Announce Fourth Quarter and Full Year 2019 Financial Results on March 25, 2020

Personalis, Inc. (Nasdaq: PSNL), a leader in advanced genomics for cancer, today announced it will release its fourth quarter and full year 2019 financial results after the market closes on Wednesday, March 25, 2020. In conjunction with the release, the Company will host a conference call and webcast that day at 2:00 p.m. Pacific Time / 5:00 p.m. Eastern Time to discuss its financial results and recent highlights.

Interested parties may access the live call via telephone by dialing (866) 220-8061 for domestic callers or (470) 495-9168 for international callers, using conference ID: 3623198. The live webinar of the call may be accessed by visiting the Events section of the company's website at investors.personalis.com. A replay of the webinar will be available shortly after the conclusion of the call and will be archived on the company's website.

About Personalis, Inc.

Personalis, Inc. is a growing cancer genomics company transforming the development of next-generation therapies by providing more comprehensive molecular data about each patient's cancer and immune response. The company's NeXTtm Platform is designed to adapt to the complex and evolving understanding of cancer, providing its biopharmaceutical customers with information on all of the approximately 20,000 human genes, together with the immune system, from a single tissue sample. Personalis also provides genomic information to the VA Million Veterans Program as part of their goal to sequence over a million veteran genomes. The Personalis Clinical Laboratory is GxP aligned as well as CLIA'88-certified and CAP-accredited. For more information, please visit www.personalis.com and follow Personalis on Twitter (@PersonalisInc).