Mark O’Neil

Mark F. O’Neil, 61, retired as COO of Cox Automotive in March 2019. He was named to that position in 2016 following Cox’s acquisition of Dealertrack, a publicly traded provider of software solutions and services for automotive retailers. O’Neil was chief executive officer of Dealertrack and a member of its board from 2001 until 2015, served as president from 2001 to 2014 and chairman from 2005 to 2015. O’Neil worked on the development and rollout of CarMax and served in various roles at CarMax from 1992 until 2000, including as vice president from 1997 to 2000.