Natera has appointed Mike Brophy to the post of chief financial officer. He replaces Herm Rosenman, who resigned effective Jan. 31, 2017. Rosenman will join Natera's board of directors. Brophy had been serving as Natera's senior vice president of finance and investor relations since September 2016 and as the firm's vice president of corporate development and investor relations since September 2015. Prior to joining Natera, he was an executive director and vice president in Morgan Stanley's investment banking division.