UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 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): August 18, 2026

BANCPLUS CORPORATION

(Exact Name of Registrant as Specified in Charter)

Mississippi

(State or Other Jurisdiction of Incorporation)

(601) 898-8300

(Registrant’s Telephone Number, Including Area Code)

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 or to be registered pursuant to Section 12(b) of the Act:

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 Other Events.

In connection with the administration of the BancPlus Corporation Employee Stock Ownership Plan (the “Plan”), BancPlus Corporation (the “Company”) periodically solicits an appraisal of the value of its common stock, par value $1.00 per share (the “Common Stock”), from an independent, third party appraiser. The appraised value of the Company’s Common Stock as of June 30, 2026 was $84.00 per share.

Such appraised value was determined solely for purposes of the Plan’s administration and is therefore subject to certain limitations, qualifications and assumptions and may not reflect the fair value of the Company’s Common Stock and should not be relied on for any reason. While the Company may seek an adjusted valuation of its Common Stock in the future, neither the Company nor the Plan has any obligation to do so or, if the Company or the Plan obtains a new appraised value of the Company’s Common Stock, to disclose the new appraised value of the Company’s Common Stock.

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, thereunto duly authorized.