AT&T’s AppNexus Sees CEO-Founder Shift to Advisory Role

Wall Street Journal: Brian O’Kelley, the founder and chief executive officer of AppNexus, the ad-tech company recently bought by AT&T for around $1.6 billion, is shifting to an advisory role at the telecom. The acquisition of AppNexus helped lay the foundations for a new advertising unit at AT&T called Xandr.