Tradeweb Markets Inc.

Evaluation of Disclosure Controls and Procedures

Our management has evaluated, under the supervision of our Chief Executive Officer (“CEO”) and Chief Financial Officer (“CFO”), the effectiveness of our disclosure controls and procedures, as defined in Rule 13a‑15(e) of the Exchange Act, as of the end of the period covered by this Quarterly Report on Form 10‑Q. Based on that evaluation, our CEO and CFO have concluded that our disclosure controls and procedures as of the end of the period covered by this Quarterly Report on Form 10‑Q are effective at a reasonable assurance level in ensuring that information required to be disclosed in our Exchange Act reports is (1) recorded, processed, summarized and reported in a timely manner and (2) accumulated and communicated to our management, including our CEO and CFO, as appropriate to allow timely decisions regarding required disclosure. Our management, including our CEO and CFO, does not expect that our disclosure controls and procedures will prevent or detect all errors and all fraud. While our disclosure controls and procedures are designed to provide reasonable assurance of their effectiveness, because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, within the Company have been detected.

Changes in Internal Control over Financial Reporting

There were no changes to our internal control over financial reporting during the quarter ended March 31, 2025 that have materially affected, or that are reasonably likely to materially affect, our internal control over financial reporting.