SWMR ▲ +3.9% - Swarmer, Inc $SWMR - Swarmer Enters Into Definitive Agreement to Acquire Ratel Robotics, a Leading Ukrainian Unmanned Ground Vehicle Manufacturer, for Up to $224 Million Swarmer stock rose 3.9% after the company announced a definitive agreement to acquire Ratel Robotics, a Ukrainian unmanned ground vehicle manufacturer, for up to $224 million. The acquisition signals Swarmer's expansion into the robotics sector and represents a significant strategic investment in unmanned technology capabilities. 10-SEP-2026 06:00 AM ET