NSTS Bancorp, Inc. - Common Stock, $0.01 par value per share (NSTS) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2022 to Q4 2025

Type / Class
Equity / Common Stock, $0.01 par value per share
Symbol
NSTS on Nasdaq
Shares outstanding
5,311,593
Price per share
$12.95
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
1,151,520
Total reported value
$13,334,962
% of total 13F portfolios
0%
Share change
+3,315
Value change
+$38,498
Number of holders
16
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of NSTS Bancorp, Inc. - Common Stock, $0.01 par value per share (NSTS) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
ALLIANCEBERNSTEIN L.P. 9.7% $5,813,244 514,902 AllianceBernstein L.P. 30 Sep 2024
NORTH SHORE TRUST & SAVINGS EMPLOYEE STOCK OWNERSHIP PLAN TRUST 8.1% $4,857,398 430,239 NORTH SHORE TRUST & SAVINGS EMPLOYEE STOCK OWNERSHIP PLAN TRUST 31 Dec 2024

As of 30 Sep 2025, 16 institutional investors reported holding 1,151,520 shares of NSTS Bancorp, Inc. - Common Stock, $0.01 par value per share (NSTS). This represents 22% of the company’s total 5,311,593 outstanding shares.

Top 17 Institutional Shareholders

The largest institutional shareholders of NSTS Bancorp, Inc. - Common Stock, $0.01 par value per share (NSTS) together control 22% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
ALLIANCEBERNSTEIN L.P. 9.8% 518,324 +0.59% 0% $5,981,459
VANGUARD GROUP INC 4.7% 248,312 0% 0% $2,902,767
RAFFLES ASSOCIATES LP 1.8% 93,774 0% 1% $1,082,152
Kovitz Investment Group Partners, LLC 1% 53,533 +15% 0% $617,771
GEODE CAPITAL MANAGEMENT, LLC 0.88% 46,610 +0.12% 0% $545,035
Creative Planning 0.85% 45,000 0% 0% $519,300
M3F, Inc. 0.72% 38,099 0% 0.12% $440,000
ROBERTS GLORE & CO INC /IL/ 0.69% 36,496 0% 0.12% $421,164
NORTHERN TRUST CORP 0.42% 22,208 -10% 0% $256,281
RENAISSANCE TECHNOLOGIES LLC 0.27% 14,400 0% 0% $166,176
BlackRock, Inc. 0.22% 11,697 +1.1% 0% $134,983
STATE STREET CORP 0.21% 11,205 0% 0% $130,986
Miracle Mile Advisors, LLC 0.21% 11,007 -24% 0% $127,021
American Capital Advisory, LLC 0.02% 850 0% 0% $9,809
BANK OF AMERICA CORP /DE/ 0% 4 -91% 0% $46
BARCLAYS PLC 0% 1 0% $12
FNY Investment Advisers, LLC 0% 0 -100% $0

Institutional Holders of NSTS Bancorp, Inc. - Common Stock, $0.01 par value per share (NSTS) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 69,535 $900,478 +$900,478 $12.95 1
2025 Q3 1,151,520 $13,334,962 +$38,498 $11.54 16
2025 Q2 1,148,355 $14,152,557 +$150,852 $12.33 17
2025 Q1 1,136,039 $12,826,161 +$50,674 $11.29 15
2024 Q4 1,131,526 $13,281,465 +$1,120,768 $11.80 17
2024 Q3 1,035,876 $10,721,449 +$975,532 $10.35 12
2024 Q2 942,226 $9,074,140 +$285,420 $9.63 15
2024 Q1 913,031 $8,710,103 +$829,433 $9.54 15
2023 Q4 827,089 $7,860,933 +$147,083 $9.51 16
2023 Q3 810,721 $7,336,526 +$2,003,338 $9.05 14
2023 Q2 589,360 $5,395,421 +$827,951 $9.14 16
2023 Q1 500,985 $4,553,464 +$30,097 $9.09 14
2022 Q4 497,403 $5,038,102 +$471,495 $10.13 18
2022 Q3 450,856 $4,877,000 +$100,291 $10.82 12
2022 Q2 441,544 $4,930,000 -$130,517 $11.18 12
2022 Q1 449,503 $5,428,000 +$5,428,003 $12.07 13