X0306 4 2021-11-22 0 0001819928 DoubleVerify Holdings, Inc. DV 0001854079 Grimmig Andrew E C/O DOUBLEVERIFY HOLDINGS, INC. 233 SPRING STREET NEW YORK NY 10013 0 1 0 0 Chief Legal Officer Options (Rights to Buy) 6.45 2021-11-22 4 A 0 441173 0.00 A 2021-11-22 2030-04-27 Common Stock 441173 441173 D Represents non-qualified stock options granted on April 27, 2020 that vested on November 22, 2021 upon Providence VII U.S. Holdings L.P. receiving cumulative cash proceeds in respect of its investment in DoubleVerify Holdings, Inc. (the "Company") equal to two times its aggregate cash investment in the Company. /s/ Andrew E. Grimmig 2021-11-24