X0306 4 2021-05-17 0 0001384905 RingCentral, Inc. RNG 0001586647 Shmunis Vladimir C/O RINGCENTRAL, INC. 20 DAVIS DRIVE BELMONT CA 94002 1 1 0 0 CEO & Chairman Class A Common Stock 2021-05-17 4 A 0 703 0.00 A 219131 D Represents Restricted Stock Units (RSUs) that vested in full on May 17, 2021. These RSUs were granted pursuant to the Issuer's Key Employee Equity Bonus Plan, in lieu of a cash bonus earned for the first quarter of 2021. /s/ Bruce P. Johnson, Attorney-in-Fact 2021-05-19