{"url_path":"/sec/nmr/10-k/2026/item-15","section_key":"item-15","section_title":"Item 15 Controls and Procedures","topic":"sec","document":{"doc_type":"20-F","doc_date":"2026-06-22","source_url":"https://www.sec.gov/Archives/edgar/data/1163653/0001193125-26-277134-index.html","accession_number":"0001193125-26-277134","cik":"0001163653","ticker":"NMR","issuer_name":"NOMURA HOLDINGS INC","edgar_url":"https://www.sec.gov/Archives/edgar/data/1163653/0001193125-26-277134-index.html","primary_entity_key":"0001163653","primary_entity_name":"NOMURA HOLDINGS INC"},"word_count":438,"has_tables":true,"body_markdown":"Item 15. Controls and Procedures\n\nDisclosure Controls and Procedures.\n\nOur Disclosure Committee is responsible for the establishment and maintenance of our disclosure controls and procedures. As of March 31, 2026, an evaluation was carried out under the supervision and with the participation of our management, including our Group Chief Executive Officer and Chief Financial Officer, and the Disclosure Committee, of the effectiveness of the disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934). Based on that evaluation, our Group Chief Executive Officer and Chief Financial Officer concluded that, as of March 31, 2026, our disclosure controls and procedures were effective.\n\nManagement’s Annual Report on Internal Control Over Financial Reporting.\n\nOur management is responsible for establishing and maintaining adequate internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934). Our management, with the participation of our Group Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of our internal control over financial reporting using the criteria set forth in the Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). Based on this evaluation, management concluded that our internal control over financial reporting was effective as of March 31, 2026. In accordance with guidance issued by the Securities and Exchange Commission, companies may exclude acquisitions from their assessment of internal control over financial reporting for the first annual assessment following the acquisition. Our management has excluded Macquarie Management Holdings, Inc., Macquarie Investment Management Holdings (Luxembourg) S.à r.l., and Macquarie Investment Management Holdings (Austria) GmbH (collectively, the “Acquired Companies”), acquired on December 1, 2025, from its assessment of internal control over financial reporting as of March 31, 2026. The Acquired Companies represented 0.2% of consolidated total assets as of March 31, 2026, and 1.7% of consolidated net revenue for the year ended March 31, 2026.\n\nOur independent registered public accounting firm, Ernst & Young ShinNihon LLC, has issued an attestation report on the effectiveness of our internal control over financial reporting, which appears on page F-4 of this annual report.\n\nChanges in Internal Control Over Financial Reporting.\n\nOur management also carried out an evaluation, with the participation of our Group Chief Executive Officer and Chief Financial Officer, of changes in our internal control over financial reporting during the year ended March 31, 2026. Based upon that evaluation, there was no change in our internal control over financial reporting during the year ended March 31, 2026 that has materially affected, or is reasonably likely to affect, our internal control over financial reporting.\n\n \n\n165\n\n##### Table of Contents"}