Results of Operations

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549     FORM 8-K     Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October  25, 2023     CVB FINANCIAL CORP. (Exact name of registrant as specified in its charter)       California   000-10140   95-3629339 (State or other jurisdiction of incorporation or organization)   (Commission file number)   (I.R.S. employer identification number)   701 North Haven Avenue , Ontario , California   91764 (Address of principal executive offices)   (Zip Code) Registrant’s telephone number, including area code: (909) 980-4030 Not Applicable (Former name or former address, if changed since last report)     Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (See General Instruction A.2. below):   ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)   ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)   ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))   ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:   Title of each class   Trading Symbol(s)   Name of each exchange on which registered Common Stock, No Par Value   CVBF   The Nasdaq Stock Market, LLC Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐       Item 2.02 Results of Operations and Financial Condition.* On October 25, 2023, CVB Financial Corp. issued a press release setting forth the financial results for the quarter ended September 30, 2023, and information relating to our quarterly conference call and webcast. A copy of this press release is attached hereto as Exhibit 99.1 and is being furnished pursuant to this Item 2.02.   Item 9.01 Financial Statements and Exhibits.*     (d) Exhibits. Exhibit No Description     99.1 Press Release, dated October 25, 2023.     104 Cover Page Interactive Data File (embedded within the Inline XBRL document) *The information in this report (including Exhibit 99.1) shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liability of that section, and shall not be incorporated by reference into any registration statement or other document filed under the Securities Act of 1933, as amended, or the Exchange Act, except as set forth in Item 8.01 herein and as expressly set forth by specific reference in such filing.   2 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.     CVB FINANCIAL CORP.   (Registrant) Date: October 26, 2023   By:   /s/ E. Allen Nicholson         E. Allen Nicholson     Executive Vice President and Chief Financial Officer   3