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): June 24, 2025

SECURITY MIDWEST BANCORP, INC.

(Exact Name of Registrant as Specified in Charter)

Maryland	333-282067	99-4917712
(State or Other Jurisdiction of Incorporation)	(Commission File No.)	(I.R.S. Employer Identification No.)

510 East Monroe, Springfield, Illinois	62701
(Address of Principal Executive Offices)	(Zip Code)

Registrant’s telephone number, including area code: (217) 789-3500

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
NONE

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 8.01 Other Events

On June 24, 2025, Security Midwest Bancorp, Inc., a Maryland corporation (the “Company”), filed a prospectus supplement with the Securities and Exchange Commission announcing that, in connection with the proposed mutual-to-stock conversion of Security Bank, s.b. (the “Bank”), the Company has commenced a local community offering where the Company is offering shares to natural persons and trusts of natural persons residing in Sangamon County, Illinois. The community offering will expire at 4:00 p.m., Central Time, on July 3, 2025, but the Company reserves the right to select an earlier expiration time and date once it receives valid stock orders for at least 1,000,000 shares of common stock, which is the midpoint of the offering range, inclusive of the valid stock orders received in the subscription offering. In accordance with the Bank’s Plan of Conversion, the Company retains the right to accept or reject in its sole discretion, in whole or in part, any order received in the community offering.

Item 9.01 Financial Statements and Exhibits

Not applicable.

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.

		SECURITY MIDWEST BANCORP, INC.


DATE: June 24, 2025	By:	/s/ Stephan P. Antonacci
		Stephan P. Antonacci
		President and Chief Executive Officer