In 2008, Mattel won $100 million and control of Bratz from MGA, after convincing a jury that Carter Bryant, the guy who originated the idea for the doll line, was working for Mattel at the time. Last year, the court of appeals stunned the toy market by overturning the jury decision.
This morning, a new jury, after considering new evidence regarding alleged trade secret theft about both parties, decided against Mattel to the tune of $88 million dollars (and the lost of any rights to Bratz). They also left open the possibility for tripling the judgement, having found Mattel to have acted willfully.
According to source, Mattel has already spent around $400 million in court proceedings.
That $400 million figure sounds dubious. The source article attributes it to a quote from (as far as I can tell) an interested, but uninvolved party. As such, I think it would be better to treat it a speculation, rather than stating it as a fact.