1. iRobot plans to file for bankruptcy, causing stock to drop significantly. 2. Picea, a Chinese firm, to acquire equity through Chapter 11 process. 3. iRobot assures no disruption to current Roomba user services. 4. Stock down about 70% ahead of market opening, trading around $1.30. 5. Shares had lost 45% of value this year, indicating ongoing struggles.