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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): November 19, 2025

CNB FINANCIAL CORPORATION

(Exact name of registrant as specified in its charter)

Pennsylvania |  | 001-39472 |  | 25-1450605
(State or other jurisdiction of incorporation or organization) |  | (Commission File Number) |  | (I.R.S. Employer Identification No.)

1 South Second Street

PO Box 42

Clearfield, Pennsylvania 16830

(Address of principal executive offices, zip code)

Registrant’s telephone number, including area code: (814) 765-9621

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 |  | Name of each exchange on which registered
Common Stock, no par value |  | CCNE |  | The NASDAQ Stock Market LLC
Depositary Shares (each representing a 1/40th interest in a share of 7.125% Series A Non-Cumulative, perpetual preferred stock) |  | CCNEP |  | 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.

CNB Financial Corporation (the “Corporation”) (NASDAQ: CCNE), the parent company of CNB Bank, intends to use the materials furnished herewith in one or more meetings with investors beginning on November 20, 2025. The presentation will also be posted on the Corporation’s website at https://cnbbank.q4ir.com/events-and-presentations. A copy of the investor presentation is furnished hereto as Exhibit 99.1 and is hereby incorporated by reference herein.

The information contained in this Item 7.01, including Exhibit 99.1 attached hereto, 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 liabilities of such section, nor shall such information or exhibit be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as may be expressly set forth by specific reference in such filing.

Item 9.01. | Financial Statements and Exhibits

(d)  Exhibits

Exhibit Number |  | Description
99.1 |  | Investor Presentation, dated November 20, 2025
104 |  | Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

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.

|  |  |  | CNB FINANCIAL CORPORATION
Date: November 19, 2025 |  |  |  | By: |  | /s/ Tito L. Lima
|  |  |  |  |  | Tito L. Lima
|  |  |  |  |  | Treasurer