Personalis CEO West to retire

Personalis announced that John West, co-founder, CEO and member of the board of directors of Personalis, notified the company of his decision to retire as CEO and a director at the end of the calendar year. West has served in the DNA sequencing field for over forty years, and co-founded Personalis with four Stanford professors in 2011. Effective December 31, 2022, Aaron Tachibana, Personalis Chief Financial Officer, will serve as interim CEO and Christopher Hall, Personalis SVP and Head, Diagnostics Business, will be promoted to President. West will continue to serve as an advisor to the Board. "We thank John for his vision and dedication for more than a decade and wish him the best in the future," said Karin Eastham, Personalis Board Chair. "The Board will immediately initiate a search for a successor. Under the leadership of Mr. Tachibana and Mr. Hall, we are committed to our strategy, particularly focused on the development of our NeXT Personal(R) MRD platform. We are fortunate to have an experienced and highly capable senior management team to continue leading the company and working closely with Aaron and Chris. I look forward to working with the leadership team as we recruit a new Chief Executive Officer."