RingCentral Inc-2025年度报告

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes☒NoIndicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. YesNo☒ Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Actof 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reportingcompany, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complyingwith any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of itsinternal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered publicaccounting firm that prepared or issued its audit report.☒ If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrantincluded in the filing reflect the correction of an error to previously issued financial statements.☐ Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive‑basedcompensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D‑1(b).☐ Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes☐No☒ The aggregate market value of voting stock held by non-affiliates of the Registrant on June30, 2025, based on the closing price of $28.25 forshares of the Registrant’s common stock as reported by the New York Stock Exchange, was approximately $2.3billion. Shares of commonstock held by each executive officer, director, and their affiliated holders have been excluded in that such persons may be deemed to be As of February20, 2026, there were 74,268,033 shares of ClassA Common Stock and 9,804,538 shares of Class B Common Stockoutstanding. DOCUMENTS INCORPORATED BY REFERENCE TABLE OF CONTENTS PART III Item15.Exhibits EXPLANATORY NOTE This Amendment No. 1 on Form 10-K/A (this “Amendment” or “Form 10-K/A”) to amend the Annual Report on Form 10-K ofRingCentral, Inc., a Delaware corporation (referred to as “RingCentral,” the “Company,” “we,” “us,” or “our”) for the fiscal year endedDecember31, 2025, originally filed with the Securities and Exchange Commission (the “SEC”) on February 27, 2026 (the “Original Report”),is being filed for the purpose of including the information required to be disclosed by Part III of Form 10-K. This information was previouslyomitted from the Original Report in reliance on General Instruction G(3) to Form 10-K , which permits the information in the above referenceditems to be incorporated in the Form 10-K by reference from our definitive proxy statement if such proxy statement is filed no later than 120days after our fiscal year-end. The reference on the cover page of the Original Report to the incorporation by reference to portions of our 10-K/A in lieu of our definitive proxy statement into Part III of the Original Report has been deleted. This Amendment No. 1 hereby amends andrestates in their entirety the cover page and Items 10 through 14 of Part III of the Original Report. As required by Rule 12b-15 under the Securities Exchange Act of 1934, as amended, in connection with this Form 10-K/A, our ChiefExecutive Officer and Chief Financial Officer are providing Rule 13a-14(a) certifications as included herein. We are amending Item 15 of Part Except as described above, this Form 10-K/A does not modify or update disclosure in, or exhibits to, the Original Report.Furthermore, this Form 10-K/A does not change any previously reported financial results, nor does it reflect events occurring after the filing PART III Item10.Directors, Executive Officers and Corporate Governance Composition of the Board of Directors We manage our business affairs under the direction of our board of directors, which is currently composed of six members. Five of ourdirectors are independent within the meaning of the