X0306 4 2017-09-13 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 2017-09-13 4 C 0 7800 0.00 A 293380 D Class A Common Stock 2017-09-13 4 S 0 7800 42.11 D 285580 D Stock Option (right to buy) 0.99 2017-09-13 4 M 0 7800 0.00 D 2019-04-24 Class B Common Stock 7800 476 D Class B Common Stock 2017-09-13 4 M 0 7800 0.99 A Class A Common Stock 7800 7800 D Class B Common Stock 2017-09-13 4 C 0 7800 0.00 D Class A Common Stock 7800 0 D Each Share of Class A Common Stock was issued upon conversion of one share of Class B Common Stock. 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, 2017. Reflects weighted average sale price. Actual sale prices ranged from $41.70 to $42.80 on September 13, 2017. The Reporting Person undertakes to provide upon request by the Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price. Options are fully vested and exercisable. Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock held by a shareholder will convert automatically into one share of Class A Common Stock upon (i) any transfer of such share (subject to certain exceptions), or (ii) the occurrence of certain other specific instances, including the vote of the holders of the Class B Common Stock, as set forth in the issuer's Amended and Restated Certificate of Incorporation. /s/ Bruce P. Johnson, Attorney-in-fact for David Sipes 2017-09-14