# EDGAR Filing Document

**Accession Number:** 0001303942
**File Stem:** 0001437749-26-001100
**Filing Date:** 2026-1
**Character Count:** 2986
**Document Hash:** 4713d579f6ca40451d5530d1f907a276
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001437749-26-001100.hdr.sgml**: 20260112

**ACCESSION NUMBER**: 0001437749-26-001100

**CONFORMED SUBMISSION TYPE**: 15-12G

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260112

**DATE AS OF CHANGE**: 20260112

**EFFECTIVENESS DATE**: 20260112

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** BankFinancial CORP
- **CENTRAL INDEX KEY:** 0001303942
- **STANDARD INDUSTRIAL CLASSIFICATION:** SAVINGS INSTITUTION, FEDERALLY CHARTERED [6035]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 000000000
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 15-12G
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-51331
- **FILM NUMBER:** 26526740

**BUSINESS ADDRESS:**
- **STREET 1:** 60 NORTH FRONTAGE ROAD
- **CITY:** BURR RIDGE
- **STATE:** IL
- **ZIP:** 60527
- **BUSINESS PHONE:** (800) 894-6900

**MAIL ADDRESS:**
- **STREET 1:** 60 NORTH FRONTAGE ROAD
- **CITY:** BURR RIDGE
- **STATE:** IL
- **ZIP:** 60527

**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549** 

**FORM 15**

**CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION** 

**UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934** 

**OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d)** 

**OF THE SECURITIES EXCHANGE ACT OF 1934** 

**Commission File Number: 0-51331**

**BANKFINANCIAL CORPORATION** 

**(Exact name of registrant as specified in its charter)** 

**c/o First Financial Bancorp**

**255 East Fifth Street, Suite 900**

**Cincinnati, Ohio 45202**

**(877) 322-9530**

**(Address, including zip code, and telephone number, including area code, of registrant**'**s principal executive offices)** 

**Common Stock, par value $0.01 per share**

**(Title of each class of securities covered by this Form)** 

**None** 

**(Titles of all other classes of securities for which a duty to file reports under section 13(a) or 15(d) remains)** 

Please place an X in the box(es) to designate the appropriate rule provision(s) relied upon to terminate or suspend the duty to file reports:

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| | |
|:---|:---|
| Rule 12g-4(a)(1) | ☒ |
| Rule 12g-4(a)(2) | ☐ |
| Rule 12h-3(b)(1)(i) | ☒ |
| Rule 12h-3(b)(1)(ii) | ☐ |
| Rule 15d-6 | ☐ |
| Rule 15d-22(b) | ☐ |

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Approximate number of holders of record as of the certification or notice date: None.

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Pursuant to the requirements of the Securities Exchange Act of 1934, First Financial Bancorp, as successor by merger to BankFinancial Corporation, has caused this certification/notice to be signed on its behalf by the undersigned duly authorized person.

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| | | |
|:---|:---|:---|
|  | **FIRST FINANCIAL BANCORP**<br> **As successor by merger to BankFinancial Corporation** | **FIRST FINANCIAL BANCORP**<br> **As successor by merger to BankFinancial Corporation** |
| Date: January 12, 2026 | By: | /s/ James M. Anderson |
|  |  | Name: James M. Anderson |
|  |  | Title: Executive Vice President and Chief Financial Officer |

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