Tradeweb Markets Inc.

If you own common stock of record, you may revoke your proxy or change your voting instructions at any time before

your shares are voted at the Annual Meeting by delivering to the Chief Legal Officer of the Company a written notice of

revocation or a duly executed proxy (via the Internet or telephone, or by returning a proxy card) bearing a later date or by

virtually attending the Annual Meeting and voting. A stockholder owning common stock in street name may revoke or change

voting instructions by contacting the bank, brokerage firm or other nominee holding the shares or by obtaining a legal proxy

from such institution and voting virtually at the Annual Meeting.