Comparable stake leader
ALLIANCEBERNSTEIN L.P.
SEC ownership of NSTS Bancorp, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001881592.
Disclosed value leader
ALLIANCEBERNSTEIN L.P.
Comparable rows
11/22
Latest evidence
30 Jun 2026
- Public ticker
- NSTS on Nasdaq
- Parsed ownership sources
-
13D/G, 3/4/5, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
ALLIANCEBERNSTEIN L.P.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
11 of 22
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
ALLIANCEBERNSTEIN L.P.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
30 Jun 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001881592
- Issuer location
- Waukegan, IL
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of NSTS Bancorp, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
ALLIANCEBERNSTEIN L.P.
Disclosed value leader
ALLIANCEBERNSTEIN L.P.
Comparable rows
11/22
Latest evidence
30 Jun 2026
13D/G
3/4/5
13F
Lead comparable stake: 9.7%
11 rows are not safely comparable across share classes.
13D/G row: ALLIANCEBERNSTEIN L.P.
Showing 1-8 of 22 holder rows.
Quick read
ALLIANCEBERNSTEIN L.P. leads the comparable SEC ownership view at 9.7%.
11 of 22 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens ALLIANCEBERNSTEIN L.P.'s linked filing trail.
Comparable ownership
Top 5
ALLIANCEBERNSTEIN L.P.
9.7%
NORTH SHORE TRUST & SAVINGS EMPLO...
8.1%
John S. Pucin
0.02%
GRAHAM CAPITAL WEALTH MANAGEMENT,...
2.1%
Chicago Capital Management, LLC
0.55%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 22 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| ALLIANCEBERNSTEIN L.P. |
13D/G
|
9.7%
|
$5,813,244
514,902 shares
|
$0 | 30 Sep 2024 |
| NORTH SHORE TRUST & SAVINGS EMPLOYEE STOCK OWNERSHIP PLAN TRUST |
13D/G
|
8.1%
|
$4,857,398
430,239 shares
|
$0 | 31 Dec 2024 |
| John S. Pucin |
3/4/5
Director
|
0.02%
|
$11,290
1,000 shares
|
— | 18 Jun 2025 |
| GRAHAM CAPITAL WEALTH MANAGEMENT, LLC |
13F
Company
|
2.1%
|
$1,506,252
109,466 shares
|
— | 30 Jun 2026 |
| Chicago Capital Management, LLC |
13F
Company
|
0.55%
|
$303,793
29,020 shares
|
— | 30 Jun 2026 |
| BlackRock, Inc. |
13F
Company
|
0.3%
|
$222,513
16,171 shares
|
— | 30 Jun 2026 |
| STATE STREET CORP |
13F
Company
|
0.21%
|
$154,181
11,205 shares
|
— | 30 Jun 2026 |
| LONGFELLOW INVESTMENT MANAGEMENT CO LLC |
13F
Company
|
0.21%
|
$150,975
10,972 shares
|
— | 30 Jun 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 15 Aug 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-12 of 12 reporting-owner rows connected to NSTS Bancorp, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
12
Largest Forms 3/4/5 holder
Stephen G. Lear
Net 12M change
$0
Latest report
18 Jun 2025
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Stephen G. Lear | Chief Executive Officer, Director | $649,626 | Mixed | 26 Jun 2024 | ||
| Nathan E. Walker | Executive Vice President | $641,919 | Mixed | 26 Jun 2024 | ||
| Rodney J. True | Director | $492,000 | Mixed | 15 Jun 2023 | ||
| Amy L. Avakian | Chief Lending Officer | $448,133 | Mixed | 26 Jun 2024 | ||
| Thaddeus M. Bond Jr. | Director | $392,000 | Mixed | 15 Jun 2023 | ||
| Kevin M. Dolan | Director | $392,000 | Mixed | 15 Jun 2023 | ||
| Apolonio Arenas | Director | $342,000 | Mixed | 15 Jun 2023 | ||
| Thomas J. Kneesel | Director | $292,000 | Mixed | 15 Jun 2023 | ||
| Thomas M. Ivantic | Director | $288,420 | Filing P/S | 12 Aug 2024 | ||
| Carissa H. Schoolcraft | Chief Financial Officer | $258,528 | Mixed | 26 Jun 2024 | ||
| Emily E. Ansani | Director | $92,552 | Mixed | 19 Dec 2024 | ||
| John S. Pucin | Director | $11,290 | Mixed | 18 Jun 2025 |
Recent insider transactions for NSTS Bancorp, Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| No insider transactions were found in the last 12 months for this issuer. | ||||||||||
* marks a reported price that did not pass the local price check.