Illumina: Alex Aravanis, Phil Febbo, Steven Barnard

Alex Aravanis has resigned as chief technology officer of Illumina, and Phil Febbo has resigned from the role of chief medical officer. Steven Barnard, Illumina's VP and head of global advanced science, has taken over the role of CTO. He joined Illumina in 1998 as its first scientist and fourth employee and has held a variety of leadership positions within the company's R&D organization. He holds a PhD in chemistry from Tufts University and a bachelor's degree in chemistry from Connecticut College.