I've made an investigation and I have found the facts which prove that DEVS DUMP THEIR COINS.
Everyone already knows that devs hide the part of their 15 million NXC premine and they refusing to show it. And I know why: they dumping it every day by small amounts.
This is the address which created the Nexium, all the Nexium were transferred from there so the activity there is not surprising. There are still a lot of NxC there because some team members didn't get their share of the 15 million meant for the team.