X0306 4 2020-04-14 0001758730 Tradeweb Markets Inc. TW 0001771187 Bruni Enrico TRADEWEB MARKETS INC. 1177 AVENUE OF THE AMERICAS NEW YORK NY 10036 true Managing Director, Europe/Asia Class A common stock 2020-04-14 4 S 0 1293 50 D 107301 D This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 13, 2019. This amount includes (i) 42,218 unvested restricted stock units ("RSUs") in respect of the issuer's Class A common stock ("Class A Common Stock") which are scheduled to vest on January 1, 2021, (ii) 44,004 unvested RSUs in respect of Class A Common Stock which are scheduled to vest on January 1, 2022, and (iii) 16,079 unvested RSUs in respect of Class A Common Stock which are scheduled to vest in equal installments on each of the first, second and third anniversaries of March 17, 2020, in each case subject to the reporting person's continued employment through the applicable vesting date. /s/ Scott Zucker, Attorney-in-Fact for Enrico Bruni 2020-04-14