X0306 4 2019-02-20 0 0001384905 RingCentral Inc RNG 0001632489 Sipes David C/O RINGCENTRAL, INC. 20 DAVIS DRIVE BELMONT CA 94002 0 1 0 0 Chief Operating Officer Class A Common Stock 2019-02-20 4 M 0 7300 15.77 A 265405 D Class A Common Stock 2019-02-20 4 S 0 3666 103.4487 D 261739 D Class A Common Stock 2019-02-20 4 S 0 3634 104.3367 D 258105 D Class A Common Stock 2019-02-20 4 F 0 7875 103.90 D 250230 D Stock Option (right to buy) 15.77 2019-02-20 4 M 0 7300 0.00 D 2022-02-27 Class A Common Stock 7300 49511 D The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2018. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $102.90 to $103.82, inclusive. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (3) and (4) to this Form 4. The price reported in Column 4 is weighted average price. These shares were sold in multiple transactions at prices ranging from $103.90 to $104.80, inclusive. In an exempt disposition to the issuer under rule 16b-3(e), the Reporting Person remitted shares to the issuer in connection with the satisfaction of tax withholding obligations arising out of the vesting of previously reported restricted stock units. Shares subject to the option are fully vested and immediately exercisable. /s/ Bruce P. Johnson, attorney-in-fact 2019-02-22