# EDGAR Filing Document

**Accession Number:** 0000779227
**File Stem:** 0000779227-25-000005
**Filing Date:** 2025-11
**Character Count:** 6917
**Document Hash:** 9092c35a4e9c616f6d8aa098afd487c9
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000779227-25-000005.hdr.sgml**: 20251107

**ACCESSION NUMBER**: 0000779227-25-000005

**CONFORMED SUBMISSION TYPE**: POS AM

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20251107

**DATE AS OF CHANGE**: 20251107

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** STEELE BANCORP INC
- **CENTRAL INDEX KEY:** 0000779227
- **STANDARD INDUSTRIAL CLASSIFICATION:** STATE COMMERCIAL BANKS [6022]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 232362874
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** POS AM
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-284191
- **FILM NUMBER:** 251460654

**BUSINESS ADDRESS:**
- **STREET 1:** 250 E. CHESTNUT STREET
- **CITY:** MIFFLINBURG
- **STATE:** PA
- **ZIP:** 17844
- **BUSINESS PHONE:** 5709661041

**MAIL ADDRESS:**
- **STREET 1:** 250 E. CHESTNUT STREET
- **CITY:** MIFFLINBURG
- **STATE:** PA
- **ZIP:** 17844

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MIFFLINBURG BANCORP INC
- **DATE OF NAME CHANGE:** 19851015

**As Filed with the Securities and Exchange Commission on November 7, 2025** 

**Registration No. 333**-**284191**

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**UNITED STATES**<br> **SECURITIES AND EXCHANGE COMMISSION**<br> **WASHINGTON, D.C. 20549**

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**POST-EFFECTIVE AMENDMENT NO. 1 TO**

**FORM S**-**4**<br> **REGISTRATION STATEMENT**<br> *UNDER*<br> *THE SECURITIES ACT OF 1933*

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STEELE BANCORP, INC.<br> (Exact name of Registrant as specified in its charter)

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| | | |
|:---|:---|:---|
| **Pennsylvania**<br> **(State or other jurisdiction of**<br> **incorporation or organization** | **6022**<br> **(Primary Standard Industrial**<br> **Classification Code Number)** | **23**-**2362874**<br> **(IRS Employer**<br> **Identification No.)** |

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**250 East Chestnut Street**<br> **Mifflinburg, PA 17844**<br> **(570) 966-1041**<br> **(Address, including zip code, and telephone number, including area code, of registrant**'**s principal executive offices)**

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**Jeffrey J. Kapsar**

**President and Chief Executive Officer**

**Steele Bancorp, Inc.**

**250 East Chestnut Street**

**Mifflinburg, PA 17844**

**(570) 966-1041**

**(Name, address, including zip code, and telephone number, including area code, of agent for service)**

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**Approximate date of commencement of proposed sale of the securities to the public:** Not applicable. Removal from registration of securities that were not sold pursuant to the registration statement.

If the securities being registered on this Form are being offered in connection with the formation of a holding company and there is compliance with General Instruction G, check the following box. ☐

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer ☐ Accelerated filer ☐ <br> Non-accelerated filer ☒ Smaller reporting company Emerging growth company ☒ ☐

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| | |
|:---|:---|
| 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 7(a)(2)(B) of the Securities Act. ☐<br> If applicable, place an X in the box to designate the appropriate rule provision relied upon on conducting this transaction: | 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 7(a)(2)(B) of the Securities Act. ☐<br> If applicable, place an X in the box to designate the appropriate rule provision relied upon on conducting this transaction: |
| &nbsp;&nbsp;&nbsp; Exchange Act Rule 13e-4(i) (Cross-Border Issuer Tender Offer) | ☐ |
| &nbsp;&nbsp;&nbsp; Exchange Act Rule 14d-1(d) (Cross Border Third-Party Tender Offer | ☐ |

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**EXPLANATORY NOTE**

**DEREGISTRATION OF SECURITIES**

Pursuant to a Registration Statement on Form S-4 (File No. 333-284191), Mifflinburg Bancorp, Inc., a Pennsylvania corporation (the "Registrant"), filed with the U.S. Securities and Exchange Commission (the "Commission") on January 10, 2025, as amended on February 10, 2025 and February 18, 2025, and declared effective by the Commission on March 14, 2025 (the "Registration Statement"), the Registrant registered the issuance of 1,554,552 shares of its common stock, $1.00 par value per share (the "Common Stock"), to the shareholders of Northumberland Bancorp ("Northumberland") upon the effectiveness of a merger of Northumberland with and into the Registrant (the "Merger"). The Merger was effective on August 1, 2025. In connection with the Merger, the Registrant changed its name to Steele Bancorp, Inc.

In connection with the consummation of the Merger, the offering pursuant to the Registration Statement has terminated. Therefore, in accordance with the undertaking made by the Registrant in the Registration Statement to remove from registration by means of a post-effective amendment any of its securities being registered under the Registration Statement that remain unsold at the termination of the offering, the Registrant hereby amends the Registration Statement to deregister the 7,827 shares of Common Stock that were registered but not issued under the Registration Statement.

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**SIGNATURES**

Pursuant to the requirements of the Securities Act of 1933, as amended, the Registrant has duly caused this Post-Effective Amendment No. 1 to the Registration Statement on Form S-4 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Mifflinburg, Commonwealth of Pennsylvania, on November 7, 2025. No other person is required to sign this Post-Effective Amendment No. 1 to the Registration Statement in reliance upon Rule 478 under the Securities Act of 1933, as amended.

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| | |
|:---|:---|
| **STEELE BANCORP, INC.** | **STEELE BANCORP, INC.** |
| By:  | /s/ Jeffrey J. Kapsar |
|  | &nbsp;&nbsp;&nbsp; Jeffrey J. Kapsar, President and |
|  | &nbsp;&nbsp;&nbsp; Chief Executive Officer |

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