SIGNET JEWELERS LTD

Management’s evaluation of disclosure controls and procedures

Signet’s disclosure controls and procedures are designed to provide reasonable assurance that information required to be disclosed by Signet in the reports that it files or submits under the Securities and Exchange Act of 1934, as amended (the “Exchange Act”) is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms. The procedures are also designed to ensure that information is accumulated and communicated to management, including the Chief Executive Officer (principal executive officer) and Chief Operating and Financial Officer (principal financial officer), as appropriate to allow timely decisions to be made regarding required disclosure.

Management, with the participation of our principal executive officer and principal financial officer, has evaluated the effectiveness of our disclosure controls and procedures in accordance with Rules 13a-15(e) and 15d-15(e) under the Exchange Act. Based on such evaluation, the principal executive officer and principal financial officer have concluded that such disclosure controls and procedures were effective as of May 2, 2026.

Changes in internal control over financial reporting

There were no changes to the Company’s internal control over financial reporting during the first quarter of Fiscal 2027 that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.