Stephen G. Lear - 01 Oct 2026 Form 4 Insider Report for NSTS Bancorp, Inc. (NSTS)

Reporting relationship: Chief Executive Officer, Director
Issuer ticker: NSTS
Reported as of: 01 Oct 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 02 Oct 2026, 14:55:24 UTC
Prior SEC filing: 26 Jun 2024
Source filing: View source filing
Reporting owner signature: /s/ Carissa H. Schoolcraft, POA

Key filing fact

Stephen G. Lear filed Form 4 for NSTS Bancorp, Inc. (NSTS) on 02 Oct 2026.

Key facts

This page summarizes Stephen G. Lear's Form 4 filing for NSTS Bancorp, Inc. (NSTS).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 02 Oct 2026, 14:55.

Change

Previous filing in this sequence was filed on 26 Jun 2024.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001901932 Primary reporting owner

Lear Stephen G.

Relationship: Chief Executive Officer, Director
Address: 700 S LEWIS AVE, WAUKEGAN
Signature: /s/ Carissa H. Schoolcraft, POA
Signature date: 02 Oct 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

NSTS transaction

Common Stock

Disposition pursuant to a tender of shares in a change of control transaction

Transaction value
Shares: -62,905
Change %: -100%
Price: $14.31^*
Shares after: 0
Date: 01 Oct 2026
Ownership: Direct
Footnotes: F1

NSTS transaction

Common Stock

Disposition pursuant to a tender of shares in a change of control transaction

Transaction value
Shares: -8,460
Change %: -100%
Price: $14.31^*
Shares after: 0
Date: 01 Oct 2026
Ownership: By ESOP
Footnotes: F1

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

NSTS transaction Derivative

Stock Option

Disposition pursuant to a tender of shares in a change of control transaction

Transaction value
Shares: -90,000
Change %: -100%
Price
Shares after: 0
Date: 01 Oct 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 90,000
Exercise price: $9.36
Footnotes: F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Section 16 status

Stephen G. Lear is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may still apply in specific circumstances.

Explanation of responses 2 footnotes

Footnote F1

Pursuant to the Agreement and Plan of Merger dated 05/12/2026, each outstanding share of common stock was converted into the right to receive $14.31 in cash at the effective time of the merger.

Footnote F2

This option, which provided for vesting in five equal annual installments beginning June 15, 2024, was cancelled in the merger and converted into the right to receive an amount in cash equal to the product of: (i) the total number of shares of Company common stock underlying the option, multiplied by (ii) the excess of (A) $14.31, over (B) the per share exercise price for such option.