# EDGAR Filing Document

**Accession Number:** 0001881592
**File Stem:** 0001437749-26-019566
**Filing Date:** 2026-6
**Character Count:** 5211
**Document Hash:** 97b3ddde7becff570304909263d16b9e
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001437749-26-019566.hdr.sgml**: 20260604

**ACCESSION NUMBER**: 0001437749-26-019566

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 12

**CONFORMED PERIOD OF REPORT**: 20260601

**ITEM INFORMATION**: Other Events

**FILED AS OF DATE**: 20260604

**DATE AS OF CHANGE**: 20260604

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** NSTS Bancorp, Inc.
- **CENTRAL INDEX KEY:** 0001881592
- **STANDARD INDUSTRIAL CLASSIFICATION:** SAVINGS INSTITUTION, FEDERALLY CHARTERED [6035]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 000000000
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-41232
- **FILM NUMBER:** 261065181

**BUSINESS ADDRESS:**
- **STREET 1:** 700 LEWIS AVE.
- **CITY:** WAUKEGAN
- **STATE:** IL
- **ZIP:** 60085
- **BUSINESS PHONE:** 847-336-4430

**MAIL ADDRESS:**
- **STREET 1:** 700 LEWIS AVE.
- **CITY:** WAUKEGAN
- **STATE:** IL
- **ZIP:** 60085

?xml version='1.0' encoding='ASCII'? nsts20260601_8k.htm

**UNITED STATES**

 **SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

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**FORM **8-K**

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**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 1, 2026**

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**NSTS Bancorp, Inc.**

(Exact Name of Registrant as Specified in Its Charter)

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**Delaware**

(State or Other Jurisdiction of Incorporation)

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| | |
|:---|:---|
| **001-41232**<br> (Commission File Number) | **87-2522769**<br> (I.R.S. Employer Identification No.) |
| **700 S. Lewis Avenue**<br> **Waukegan**, **Illinois**<br> (Address of Principal Executive Offices) | **60085**<br> (Zip Code) |

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**(**847**) **336-4430**

(Registrant's Telephone Number, Including Area Code)

 **Not Applicable**

(Former Name or Former Address, if Changed Since Last Report)

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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 pursuant to Section 12(b) of the Act:

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| | | |
|:---|:---|:---|
| Title of each class | Trading Symbol(s) | Name of each exchange on which registered |
| Common Stock | NSTS | NASDAQ Capital Market |

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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. ☐

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| | |
|:---|:---|
| **Item 8.01.** | **Other Events.** |

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As previously disclosed, on May 12, 2026, NSTS Bancorp, Inc. (the "Company") and Brookfield Bancshares, Inc. ("Brookfield") entered into an Agreement and Plan of Merger (the "Merger Agreement"), pursuant to which the Company will be merged with and into Brookfield, and the Company's subsidiary bank, North Shore Trust and Savings (the "Bank"), will become a wholly-owned subsidiary of Brookfield and continue to operate under its existing name and federal savings association charter as a subsidiary of Brookfield.

As part of the merger transaction, the parties agreed that, on or prior to the closing of the merger, the Bank would divest of its mortgage lending division, Oak Leaf Community Mortgage ("OLCM"), which operated in three locations in the north and western suburbs of Chicago. As of June 1, 2026, 12 employees are no longer with the Company, with an additional four employees expected to leave prior to, or at, August 3, 2026.

Effective June 1, 2026, the Bank divested OLCM by transferring certain assets utilized by OLCM, including certain real estate leases, third party vendor contracts, trademark rights and other information technology assets to an unaffiliated national mortgage lender, and a substantial majority of the OLCM employees were hired by that mortgage lender.

The Company does not expect to recognize any material gain or loss or incur any material expenses as a result of the OLCM divestiture.

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**SIGNATURE**

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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| | | |
|:---|:---|:---|
|  | **NSTS Bancorp, Inc.** | **NSTS Bancorp, Inc.** |
| Date: June 4, 2026 | By: | /s/ Stephen G. Lear |
|  | Name: | Stephen G. Lear |
|  | Title: | President and Chief Executive Officer |

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