Notice Regarding Disposal of Treasury Shares Under the Post-Grant Restricted Stock Unit System

Overview of Treasury Share Acquisition

Advantest Corporation resolved at the Board of Directors meeting held on December 18, 2025, to dispose of treasury shares under the post-grant restricted stock unit system. The shares to be disposed of consist of 170,488 shares of the Company's common stock, at a disposal price of 19,450 yen per share, totaling 3,315,991,600 yen. The disposal date is February 2, 2026, and the recipients are eight Executive Officers who do not concurrently serve as Directors of the Company. This disposal of treasury shares is subject to the effectiveness of the securities registration statement under the Financial Instruments and Exchange Act.

Background and Purpose of Acquisition

This disposal of treasury shares aims to provide incentives to recipients under the restricted stock compensation plan and to share value with shareholders. The restricted stock compensation plan was introduced by resolution of the Board of Directors on May 21, 2021, and at the 82nd Annual General Meeting of Shareholders held on June 28, 2024, approval was obtained for the payment of monetary claims within 1 billion yen per annum and issuance/disposal of up to 400,000 shares of common stock per annum. For non-residents, this plan is applied whereby eight Executive Officers not concurrently serving as Directors pay monetary claims as contribution in kind and receive disposal of common shares accordingly.