Owner of the family business Janko Corporation.
Ms. Jankos was drawn and plotted by Rob Liefeld and scripted by Fabian Nicieza.
Major Story Arcs
Confronted with a stock buy-out from various firms (including the pairing of Gideon and Sunspot), Arianna hired Black Tom Cassidy to kidnap the heads of the different companies and, as a bit of self-serving justice, to extort money from them during the Sabotage arc. As payment, Arianna supplied Black Tom with the tools needed to pull the Juggernaut from his interdimensional resting place. All this was accomplished atop the World Trade Center. It is not known if she (or the other billionaires assembled, for that matter) survived Black Tom's detonation of bombs that destroyed the building they had their meeting in.