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Share Information

Ownership Information

As of December 31,2025

Capital 32,363 million yen
Common Stock Issuable shares : 1,760,000,000
Issued shares : 732,000,000 (As of February 6, 2026)
Number of Shareholders 92,878
Stock Exchange Listings Tokyo Stock Exchange, Prime Market (Securities Code: 6857)
Fiscal Year April 1 through March 31
Ordinary General Meeting of Shareholders Within 3 months after the record date for voting rights (May 15)
Record Dates Year-end dividend: March 31
Ordinary general meeting of shareholders: May 15
Interim dividend: September 30
TSE Trading Unit 100
Method of Public Notice Electronic Reporting on the below site.

Electric Public-notice (Japanese only)　https://www.advantest.com
In the event that electronic public notices cannot be provided due to accidents or other unavoidable circumstances, public notice shall be given in the Nihon Keizai Shimbun.

Share Registration Agent
The Firm Responsible for Administering Special Account 		Mitsubishi UFJ Trust and Banking Corporation
Contacts Mitsubishi UFJ Trust and Banking Corporation
Corporate Agency Division
1-1, Nikkocho, Fuchu-shi, Tokyo 183-0044, Japan
TEL: +81-42-303-9800
0120-232-711 (Toll free number in Japan)

Administrative Procedures Regarding Shares

  • Please inform the securities firm at which you hold an account of changes of address, demands for sales and purchases of fractional shares or other various services.
  • Any unpaid dividends shall be paid out by Mitsubishi UFJ Trust and Banking Corporation, which is the administrator of Advantest's shareholder registry.

Information on ADRs

Ticker Symbol ATEYY
CUSIP Number 00762U200
Exchange OTC (Over-the-counter)
Ratio (ADR:ORD) 1:1
Depositary JPMorgan Chase Bank, N.A.
383 Madison Avenue, Floor 11
New York, New York 10179, U.S.A.
https://www.adr.com/drprofile/00762U200

(Queries)
Please click the following link to view information:

https://www.adr.com/contact/jpmorgan
Local Custodian Bank Mizuho Bank, Ltd.

Report of Organizational Actions Affecting Basis of Securities (Form8937)

Report of Organizational Actions Affecting Basis of Securities (Form8937)Nov.9, 2023

Breakdown of Shareholders

As of December 31,2025

Financial Institutions and Securities Companies 136 holders 335,648 thousand shares(43.81%) Other Entities, Government, and Treasury Shares 799 holders 42,868 thousand shares(5.59%) Non-Japanese Holders 1,968 holders 346,517 thousand shares(45.23%) Individuals and Others 89,975 holders 41,106 thousand shares(5.37%)

Major Shareholders

Rank Name Number of Shares (in thousand) Percentage of Ownership (%)
1 The Master Trust Bank of Japan ,Ltd.(trust account) 220,345 30.34
2 Custody Bank of Japan, Ltd. (trust account) 89,337 12.30
3 STATE STREET BANK AND TRUST COMPANY 505001 20,790 2.86
4 THE BANK OF NEW YORK MELLON 140042 14,070 1.93
5 HSBC HONG KONG—TREASURY SERVICES A/C ASIAN EQUITIES DERIVATIVES 13,223 1.82
6 GOVERNMENT OF NORWAY 12,345 1.70
7 JP MORGAN CHASE BANK 385781 10,853 1.49
8 MOXLEY & CO LLC 8,349 1.14
9 BNYM AS AGT⁄CLTS 10 PERCENT 7,680 1.05
10 STATE STREET BANK AND TRUST COMPANY 505103 6,629 0.91

(Notes)

  1. 1.
    The number of treasury shares is 39,925 thousand.
  2. 2.
    Number of Shares is rounded down to the nearest thousand.
  3. 3.
    Percentage of Ownership is calculated excluding treasury shares.
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