To explain the title: > a limited duration shareholder rights plan, often called a “poison pill,” > Under the new structure, if any person or group acquires b

To explain the title: > a limited duration shareholder rights plan, often called a “poison pill,” > Under the new structure, if any person or group acquires beneficial ownership of at least 15% of Twitter’s outstanding common stock without the board’s approval, other shareholders will be allowed to purchase additional shares at a discount [until] April 14, 2023.