X0306 4 2021-10-01 0001758730 Tradeweb Markets Inc. TW 0001503180 Furber Sara TRADEWEB MARKETS INC. 1177 AVENUE OF THE AMERICAS NEW YORK NY 10036 true Chief Financial Officer Class A common stock 2021-10-01 4 A 0 44589 0 A 44589 D The reported transaction is an award of restricted stock units ("RSUs") in respect of the issuer's Class A common stock ("Class A Common Stock"). Subject to the reporting person's continued employment with the issuer through the applicable vesting date, (i) 19,350 of these RSUs are scheduled to vest on March 31, 2022, (ii) 16,672 of these RSUs are scheduled to vest on March 31, 2023, (iii) 4,948 of these RSUs are scheduled to vest on March 31, 2024 and (iv) 3,619 of these RSUs are scheduled to vest on March 31, 2025. This amount includes 44,589 unvested RSUs in respect of Class A Common Stock which are scheduled to vest as described in footnote 1 to this Form 4. /s/ Scott Zucker, Attorney-in-Fact for Sara Furber 2021-10-05