Several high-profile tech deals, including Amazon's acquisition of iRobot, were thwarted by merger control scrutiny, resulting in hefty break fees totaling approximately USD 1.2 billion. Break fees, also known as reverse break fees or termination fees, are imposed on acquirers who fail to close pre-agreed acquisitions. The cases underscore the significant costs and complexities of M&A transactions, emphasizing the need for careful assessment of break fees during negotiations.