Timely Disclosure
You can view our past timely disclosure documents,
excluding financial results.
FY2025 (Fiscal Year Ending March 31, 2026)
- September 25, 2025 Notice of Delisting of Company Shares (PDF : 135KB)
- August 29, 2025 Notice Concerning Approval of Resolutions on Share Consolidation, Abolition of Share Unit, and Partial Amendment to Articles of Incorporation (PDF : 236KB)
- July 24, 2025 Notice of Extraordinary General Shareholders Meeting to Approve Share Consolidation, Abolition of Share Unit, and Partial Amendment to Articles of Incorporation (PDF : 643KB)
- July 7, 2025 (Update on previously disclosed matters) Notice Regarding the Disposal of Fixed Assets (Data Center) by Consolidated Subsidiaries (PDF : 228KB)
- June 27, 2025 (Update on previously disclosed matters) Notice Regarding the Disposal of Fixed Assets (Data Center) by Consolidated Subsidiaries (PDF : 227KB)
- June 23, 2025 Matters related to controlling shareholders, etc. (PDF : 156KB)
- June 20, 2025 Notice Regarding the Result of the Tender Offer for the Company Shares by NIPPON TELEGRAPH AND TELEPHONE CORPORATION, the Parent Company of the Company (PDF : 232KB)
- June 16, 2025 Notice Regarding the Establishment of the Record Date for the Convocation of the Extraordinary General Shareholders Meeting（PDF : 141KB）
- May 8, 2025 Notice Concerning the Supporting Opinion and Tender Recommendation Opinion for the Tender Offer for Company Shares by NIPPON TELEGRAPH AND TELEPHONE CORPORATION, the Parent Company of the Company (PDF : 1.4MB)
- May 8, 2025 Notice Regarding the Disposal of Fixed Assets (Data Center) by Consolidated Subsidiaries (PDF : 261KB)
Past Timely Disclosure Documents
- FY2024
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- June 19, 2024 Notice of Change in Specified Subsidiary (PDF : 76KB)
- June 19, 2024 Matters related to controlling shareholders, etc. (PDF : 120KB)
- May 24, 2024 Notice Concerning Results of Tender Offer for the Shares etc. of JASTEC Co.,Ltd. (Securities Code: 9717) by NTT DATA Japan Corporation (PDF : 229KB）
- May 10, 2024 Notice of Change in Representative Directors (PDF : 147KB)
- April 5, 2024 Notice Concerning Commencement of Tender Offer for the Shares etc. of JASTEC Co.,Ltd. (Securities Code: 9717) by NTT DATA Japan Corporation (PDF : 619KB)
- FY2023
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- March 29, 2024 Notice of Change in Specified Subsidiary (PDF：92.8KB)
- December 19, 2023 Notice of Change in Specified Subsidiary (PDF：123KB)
- June 23, 2023 Matters related to controlling shareholders (PDF：136KB)
- May 23, 2023 Notification of Independent Directors (PDF：214KB)
- May 12, 2023 (Update) Transition to Holding Company Structure and Notice Concerning Partial Amendments of Articles of Incorporation (PDF：247KB)
- May 12, 2023 Notice of Change in Representative Directors (PDF：186KB)