A. THE COMPANY Teradyne, Inc. (Teradyne) is a leading global supplier of automation equipment for test and industrial applications. Teradyne designs, develops, manufactures and sells automatic test systems used to test semiconductors, wireless products, data storage and complex electronics systems in the consumer electronics, wireless, automotive, industrial, computing, communications, and aerospace and defense industries. Teradynes industrial automation products include collaborative robotic arms, autonomous mobile robots, and advanced robotic control software used by global manufacturing and light industrial customers to improve quality, increase manufacturing and material handling efficiency and decrease manufacturing costs. Teradynes automatic test equipment and industrial automation products and services include:  semiconductor test (Semiconductor Test) systems;  industrial automation (Industrial Automation) products;  defense/aerospace (Defense/Aerospace) test instrumentation and systems, storage test (Storage Test) systems, and circuit-board test and inspection (Production Board Test) systems (collectively these products represent System Test); and  wireless test (Wireless Test) systems. On February 26, 2018, Teradyne acquired Energid Technologies Corporation (Energid) for a total purchase price of approximately $27.6 million. Energids technology enables and simplifies the programming of complex robotic motions used in a wide variety of end markets, ranging from heavy industry to healthcare, utilizing both traditional robots and collaborative robots. Energid is included in Teradynes Industrial Automation segment. On April 25, 2018, Teradyne acquired Mobile Industrial Robots ApS (MiR), a Danish limited liability company . MiR is a leading maker of collaborative autonomous mobile robots (AMRs) for industrial applications. The total purchase price was approximately $197.68 million, which included cash paid of approximately $145.2 million a nd $52.6 million in fair value of contingent consideration payable upon achievement of certain thresholds and targets for revenue and earnings before interest and taxes through 2020. Contingent consideration for 2018 was $30.8 million and was paid in March 2019. Contingent consideration for 2019 was $9.1 million and is expected to be paid in March 2020. The maximum payment for the remaining MiR contingent consideration that could be paid is $63.2 million. MiR is included in Teradyne s Industrial Automation segment. On January 30, 2019, Teradyne acquired all of the issued and outstanding shares of Lemsys SA (Lemsys) for a total purchase price of approximately $9.1 million. Lemsys strengthens Teradynes position in the electrification of vehicles, solar and wind power, and industrial applications. Lemsys is included in Teradynes Semiconductor Test segment. On June 3, 2019, Teradyne invested $15.0 million in RealWear, Inc. (RealWear). RealWear, a private company, develops and sells advanced wearable technology including industrial, hands-free, head-mounted augmented reality devices that make the workplace safer and more productive. On February 28, 2020, RealWears debt holder demanded repayment of its $25.0 million loan to RealWear. As a result, in the fourth quarter of 2019, Teradyne recorded an impairment charge of $15.0 million to reduce its investment in RealWear to zero as of December 31, 2019. On November 1 3 , 2019 , Teradyne acquired 100% of the membership interests of AutoGuide, LLC (AutoGuide), a maker of high payload AMRs, an emerging and fast growing segment of the global forklift market . T he total purchase price was approximately $81.7 million, which included cash paid of approximately $57.8 million and $24.0 million in fair value of contingent consideration payable upon achievement of certain performance targets, extending potentially through 2022. The maximum contingent consideration that could be paid is $106.9 million. AutoGuides AMRs are used for material transport of payloads up to 4,500 kg in manufacturing, warehouse and logistics applications. These products complement MiRs lower payload products. AutoGuide is included in our Industrial Automation segment.