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Oncocyte: Ronnie Andrews, Joshua Riggs, Louis Silverman

Ronnie Andrews has stepped down as CEO and director of Oncocyte, effective Dec. 1. He will continue as a consultant for the molecular diagnostics firm until Feb. 28, 2023. Joshua Riggs is serving as interim CEO until a permanent CEO has been appointed. Riggs has been Oncocyte's general manager of transplant since July of this year and was previously the firm's senior director of business development. Before that, he was a principal at consulting firm Bethesda Group.

In addition, Louis Silverman has been appointed as an independent member of Oncocyte's board of directors, effective immediately. He is the chairman and CEO of Hicuity Health (formerly Advanced ICU Care), a provider of high acuity telemedicine services. Silverman holds a BA in American studies from Amherst College and an MBA from Harvard Business School.