iRobot Corp. (NASDAQ:IRBT) , the company behind the popular Roomba cleaning robots, has filed for bankruptcy after 35 years in the business. The stock has plunged 83.42% in the Monday pre-market.iRobot Files Chapter 11, To Go PrivateOn Sunday, the Massachusetts-based robotics company announced that it had filed for Chapter 11 bankruptcy protection in the District of Delaware court. The company will be acquired outright by its main manufacturer and lender, Shenzhen PICEA, a vacuum cleaner maker with R&D and ...