Rohan Hastie, John Ryals,

Rohan Hastie was named president and CEO of Metabolon. He replaces John Ryals, who retired from those posts, but will remain on the company's board. Ryals has been president, CEO, and a board member of Metabolon since April 2002, when he cofounded the firm. 

Hastie joined Metabolon in September 2017 as chief business officer. Before that, he was president of consulting firm Arrow Life Sciences & Healthcare. He also has held leadership positions in diagnostics and corporate development at Hologic, where he was most recently president of Hologic Diagnostic Solutions.