RingCentral, Inc.

Securities Trading Plans of Directors and Executive Officers

During our last fiscal quarter, the following officers adopted a “Rule 10b5-1 trading arrangement,” as defined in Regulation S-K Item 408, as follows: On June 12, 2026, Kira Makagon, our President and Chief Operating Officer, adopted a Rule 10b5-1 trading arrangement providing for the sale from time to time of up to 241,781 shares of Class A common stock.

The number of shares that may be sold under the trading arrangement may also be increased by the number of shares of the company’s Class A common stock, if any (not yet determinable) that are awarded to Ms. Makagon under the company’s employee equity bonus and executive equity compensation plans. The number of shares that may be sold under the trading arrangement will be reduced by the number of shares (not yet determinable) withheld to satisfy tax obligations upon the vesting of certain outstanding equity awards. The trading arrangement is intended to satisfy the affirmative defense in Rule 10b5-1(c). The duration of the trading arrangement is until August 26, 2027 or earlier if all transactions under the trading arrangement are completed.

On May 22, 2026, Tarun Arora, our Chief Accounting Officer, adopted a Rule 10b5-1 trading arrangement providing for the sale from time to time of up to 83,269 shares of Class A common stock. The number of shares that may be sold under the trading arrangement may also be increased by the number of shares of the company’s Class A common stock, if any (not yet determinable) that are awarded to Mr. Arora under the company’s employee equity bonus and executive equity compensation plans. The number of shares that may be sold under the trading arrangement will be reduced by the number of shares (not yet determinable) withheld to satisfy tax obligations upon the vesting of certain outstanding equity awards. The trading arrangement is intended to satisfy the affirmative defense in Rule 10b5-1(c). The duration of the trading arrangement is until June 16, 2027 or earlier if all transactions under the trading arrangement are completed.

No other directors or officers, as defined in Rule 16a-1(f), have adopted and/orterminated a “Rule 10b5-1 trading arrangement” or a “non-Rule 10b5-1 trading arrangement,” each as defined in Regulation S-K Item 408, during the last fiscal quarter.

Item 6. Exhibits.

The exhibits listed in the accompanying Exhibit Index are filed or incorporated by reference as part of this Quarterly Report on Form 10-Q.