A corporate raider is an investor or company that buys a significant stake in a publicly traded company, often with the intention of making changes to increase its value. This can involve restructuring the company, selling off assets, or even replacing management. The goal is typically to profit from the increased stock price after these changes are implemented. Corporate raiders often target companies that they believe are undervalued or poorly managed. They may use aggressive tactics to gain control, which can lead to conflicts with existing management and shareholders. Notable examples of corporate raiders include Carl Icahn and T. Boone Pickens.