Motorola's newest DROIDs have only been out for a couple weeks now, but the folks over on XDA Forums were hard at work to see who would collect the $830 bounty. As it turns out, user "jcase" was the first to successfully develop a rooting process that would work across the Motorola DROID MAXX, Ultra and Mini.
Source: http://www.phonearena.com/news/How-to-Root-your-Verizon-Motorola-DROID-MAXX-Ultra-and-Mini_id47448
Source: http://www.phonearena.com/news/How-to-Root-your-Verizon-Motorola-DROID-MAXX-Ultra-and-Mini_id47448