X0407 4 2023-06-15 0 0001384905 RingCentral, Inc. RNG 0001905447 Katibeh Mohammed C/O RINGCENTRAL, INC. 20 DAVIS DRIVE BELMONT CA 94002 0 1 0 0 President and COO 1 Class A Common Stock 2023-06-15 4 S 0 9566 34.19 D 315044 D Class A Common Stock 2023-06-15 4 S 0 2511 34.619 D 312533 D These sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 15, 2023. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.555 to $34.55, 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 (2) and (4) to this Form 4. Reflects an adjustment to correct an unintentional overstatement of shares in the Reporting Person's last Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $34.555 to $34.71, inclusive. /s/ Paul Porter, Attorney-in-Fact 2023-06-16