Teradyne Inc

Teradyne Robotics has initiated a copyright lawsuit in Germany against the German subsidiary of China's Elite Robots, claiming unauthorized use of Universal Robots software. The company also notified European safety authorities about potential issues with Elite Robots' machines.

Teradyne shares declined over 3% Thursday, retreating from a record high as the broader chip sector weakened. An executive filed to sell a small portion of holdings.

Teradyne stock declined nearly 1% on Tuesday after President Capital downgraded the semiconductor test equipment maker to neutral, raising its price target to $308. Trading volume surged above average as investors awaited key U.S. economic data.

Teradyne shares advanced over 3% as semiconductor-related stocks recovered. A key analyst downgraded the stock to neutral but raised its price target ahead of critical U.S. jobs and inflation reports.