Personalis: Christopher Hall 

Personalis has appointed Christopher Hall as its new CEO and as a member of the firm's board of directors, effective immediately. Hall joined Personalis in October 2022 and became president at the end of December 2022.

The company's board has also promoted Aaron Tachibana to chief operating officer. In addition to his previous role as Personalis' CFO, Tachibana had served as interim CEO starting at the end of December 2022. The firm also announced that it has promoted Richard Chen to the position of executive VP of R&D, in addition to his role as chief medical officer.

Hall has several decades of experience in the diagnostic space, previously serving as CEO of Naring Health, president and COO of Veracyte; and SVP and chief business officer of Celera’s cardiovascular testing business. He holds an MBA from Harvard University and a BA from DePauw University.