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 30, 2025

BANKFINANCIAL CORPORATION

(Exact Name of Registrant as Specified in Charter)

Maryland

0-51331

75-3199276

(State or Other Jurisdiction

of Incorporation)

(Commission

File No.)

(I.R.S. Employer

Identification No.)


	60 North Frontage Road, Burr Ridge, Illinois (Address of Principal Executive Offices)	60527 (Zip Code)

Registrant’s telephone number, including area code: (800) 894-6900

Not Applicable

(Former name, former address and former fiscal year, 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, par value $0.01 per share		BFIN		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 8.01. Other Events.

On October 30, 2025, the Company filed its Quarterly Report on Form 10-Q for the third quarter ended September 30, 2025 and issued the Quarterly Financial and Statistical Supplement for the latest five quarters. The Quarterly Financial and Statistical Supplement is included as Exhibit 99.1 to this report.

This current report includes “forward-looking statements” as defined in the Private Securities Litigation Reform Act of 1995. A variety of factors could cause BankFinancial’s actual results to differ from those expected at the time of this release. For a discussion of some of the factors that may cause actual results to differ from expectations, please refer to BankFinancial’s most recent Annual Report on Form 10-K as filed with the SEC, as supplemented by subsequent filings with the SEC. Investors are urged to review all information contained in these reports, including the risk factors discussed therein. Copies of these filings are available at no cost on the SEC's web site at www.sec.gov or on BankFinancial’s web site at www.bankfinancial.com. Forward-looking statements speak only as of the date they are made, and we do not undertake to update them to reflect changes.

Item 9.01 Financial Statements and Exhibits.

(a)

Not Applicable.

(b)

Not Applicable.

(c)

Not Applicable.

(d)

Exhibits.

	Exhibit No.	Description
	99.1	Quarterly Financial and Statistical Supplement
	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.

		BANKFINANCIAL CORPORATION

Dated:	October 30, 2025	By:	/s/ F. Morgan Gasior
			F. Morgan Gasior
			Chairman of the Board, Chief Executive Officer and President

BankFinancial CORP 8-K