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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 22, 2025

CVB Financial Corp.

(Exact name of Registrant as Specified in Its Charter)

California | 000-10140 | 95-3629339
(State or Other Jurisdiction of Incorporation) | (Commission File Number) | (IRS Employer Identification No.)
701 N HAVEN AVE STE 350 |
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:

☐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 7.01 Regulation FD Disclosure.

The President and Chief Executive Officer and Chief Financial Officer of CVB Financial Corp. (the "Company") will make presentations to institutional investors at various meetings throughout the fourth quarter of 2025. The October 2025 slide presentation, updated to reflect third quarter 2025 financial information, is included as Exhibit 99.1 of this report. The information in this report (including Exhibits 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 documents filed under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by the specific reference in such filing. A copy of the slide presentation will also be available on the Company's website at www.cbbank.com under the "Investors" tab.

## Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Exhibit No. | Description
99.1 | Copy of the CVB Financial Corp. October 2025 slide presentation.
104 | Cover Page Interactive Data File (embedded within the Inline XBRL document)

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.
Date: | October 23, 2025 | By: | /s/ E. Allen Nicholson
|  |  | E. Allen Nicholson Executive Vice President and Chief Financial Officer