Tranche Update on Teradyne, Inc.'s Equity Buyback Plan announced on January 26, 2023.

Teradyne, Inc. specializes in the development, manufacturing and marketing of automatic test equipments. Net sales break down by family of products as follows: - semiconductor tester (72.4%); - system testing solutions (13.1%): testers of integrated circuit, digital network cards, electronic modules, military and aerospace instruments, car diagnostic systems, etc.; - industrial automation solutions (9%); - wireless test solutions (5.5%): for mobiles devices and equipments manufacturers (smart phones, tablets, laptops, etc.). Net sales break down by source of income into sales of products (86.2%) and services (13.8%; consulting, development, training and technical support services). Net sales break down geographically as follows: the United States (10.3%), Taiwan (37.8%), China (14.9%), Korea (12.5%), Europe (6.6%), Japan (4.6%), Thailand (4.4%), Singapore (2.4%), Philippines (2.2%), Malaysia (1.8%) and other (2.5%).