Tradeweb Markets Inc.

(a)Approval or Modification of Material Compensatory Agreements

On February 5, 2026, the Compensation Committee of the Board of Directors of the Company (the “Compensation Committee”) approved or modified certain material compensatory arrangements with the principal executive officer, the principal financial officer and the named executive officers, as detailed below.

The Compensation Committee approved the Amended and Restated Executive Severance Policy, effective as of February 5, 2026 (the “A&R Executive Severance Policy”). The A&R Executive Severance Policy amends and restates the prior Executive Severance Policy in its entirety. Pursuant to the A&R Executive Severance Policy, Eligible Employees (defined as the Chief Executive Officer, any member of the Executive Committee of the Company and any other employee whose employment agreement indicates that the A&R Executive Severance Policy applies) are eligible to receive a Severance Amount (as defined below) upon a Qualifying Termination (defined as a termination by the Company for any reason other than cause, death or disability, or a resignation by the Eligible Employee for good reason). The “Severance Amount” is an amount equal to (i) accrued compensation, plus (ii) one times the Eligible Employee’s base salary, payable in equal installments on the Company’s payroll dates during the one year period following the Termination Date, plus (iii) one and a half times the sum of (A) the Eligible Employee’s base salary and (B) the average actual bonus paid to the Eligible Employee in the three fiscal years preceding the date of termination, paid no later than sixty days following the execution of a release agreement. An Eligible Employee is also entitled to receive reimbursements for the excess costs of COBRA continuation for one year following the termination date. Mr. Hult continues to be entitled to severance pursuant to the terms of his employment agreement and not the A&R Executive Severance Policy. This description is meant to be a summary and not a full description of all of the terms of the A&R Severance Policy, which are incorporated herein by reference. A copy of the A&R Severance Policy is attached as Exhibit 10.42 to this Annual Report on Form 10-K.

In addition, the Compensation Committee approved amendments (the “Executive Equity Agreement Amendments”) to existing outstanding RSU (other than the Chief Executive Officer), PSU and PRSU grant agreements for members of the Executive Committee of the Company (the “Executive Equity Agreements”). Pursuant to the Executive Equity Agreement Amendments, upon a qualifying retirement (with a minimum of six months advance notice), a termination without cause, a termination on account of death or disability (each, a “Qualifying Termination”) or a resignation with good reason, in each instance, by a member of the Executive Committee of the Company, all outstanding and unvested PRSUs and PSUs, as applicable, will fully vest. RSUs, which terms already provide for full vesting upon a Qualifying Termination, will also fully vest on a resignation for good reason. Mr. Hult’s outstanding RSUs already provide for full vesting on such events. The PRSUs, PSUs and RSUs will continue to settle upon the original settlement dates. All other terms applicable to the RSUs, PRSUs and PSUs, as disclosed in the Company’s Proxy Statement on Schedule 14A, filed on March 27, 2025, are unchanged. All equity grants to be made to the Executive Committee members in 2026 and thereafter will be made pursuant to similar terms. This description is meant to be a summary and not a full description of all of the terms of the Executive Equity Agreements, which are incorporated herein by reference. Copies of the Executive Equity Agreements and Executive Equity Agreement Amendments are attached as Exhibits 10.34 - 10.41 to this Annual Report on Form 10-K.

(b)Securities Trading Plans of Executive Officers and Directors

The following table describes trading plans intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act, as defined in Item 408 of Regulation S-K (“Rule 10b5-1 trading arrangements”), adopted, modified orterminated by our executive officers and directors during the three months ended December 31, 2025.

(1) The Rule 10b5-1 trading arrangement may also expire on such earlier date as all such transactions under the trading arrangement are completed or at such time as such trading arrangement is otherwise terminated in accordance with its terms.

During the three months ended December 31, 2025, none of our directors or executive officers adopted, modified orterminated a non-Rule 10b5-1 trading arrangement (as defined in Item 408 of Regulation S-K).