NSTS Bancorp, Inc.
NSTS- Exchange
- Nasdaq
- Industry
- Savings Institution, Federally Chartered
- SEC CIK
- 0001881592
No open-market purchases or sales by NSTS Bancorp, Inc. insiders were filed in the last 90 days; 25 institutions reported holding it in 13F filings for Q2 2026, worth $17.3M in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in NSTS Bancorp, Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 21
- +2 vs. Q4 2025
- Shares held
- 1.22M
- +263.9K (+27.7%) vs. Q4 2025
- Total value
- $14.9M
- +$2.51M (+20.3%) vs. Q4 2025
- New holders
- 5
- 4 more added
- Sold out
- 3
- 2 more reduced
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting NSTS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 25 | $17.3M |
| Q1 2026 | 21 | $14.9M |
| Q4 2025 | 20 | $15.2M |
| Q3 2025 | 18 | $13.3M |
| Q2 2025 | 18 | $14.2M |
| Q1 2025 | 16 | $12.8M |
| Q4 2024 | 18 | $13.3M |
| Q3 2024 | 13 | $10.7M |
| Q2 2024 | 16 | $9.07M |
| Q1 2024 | 16 | $8.71M |
| Q4 2023 | 17 | $7.86M |
| Q3 2023 | 15 | $7.34M |
| Q2 2023 | 16 | $5.40M |
| Q1 2023 | 15 | $4.55M |
| Q4 2022 | 19 | $5.04M |
| Q3 2022 | 15 | $4.88M |
| Q2 2022 | 13 | $4.93M |
| Q1 2022 | 14 | $5.43M |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding NSTS Bancorp, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Capital Advisors, Ltd. LLC | 30 | $0 | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 85 | $991 | 0.00% | +85 | New |
| Scarborough Advisors, LLC | 150 | $1.75K | 0.00% | 00.0% | Unchanged |
| Harbour Investments, Inc. | 500 | $5.83K | 0.00% | 00.0% | Unchanged |
| Northwestern Mutual Wealth Management Co | 500 | $5.83K | 0.00% | +500 | New |
| American Capital Advisory, LLC | 850 | $9.91K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 11,182 | $130.4K | 0.00% | +11,182 | New |
| State Street Corp | 11,205 | $130.7K | 0.00% | 00.0% | Unchanged |
| BlackRock, Inc. | 12,161 | $141.8K | 0.00% | +304+2.6% | Added |
| Renaissance Technologies LLC | 17,500 | $204.1K | 0.00% | +30.0% | Added |
| Northern Trust Corp | 21,179 | $246.9K | 0.00% | −146−0.7% | Reduced |
| M3F, Inc. | 26,664 | $311.0K | 0.08% | 00.0% | Unchanged |
| Vanguard Fiduciary Trust Co | 28,021 | $326.7K | 0.00% | +28,021 | New |
| Roberts Glore & Co Inc | 36,496 | $425.5K | 0.12% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 44,876 | $523.4K | 0.00% | −507−1.1% | Reduced |
| Creative Planning | 45,000 | $524.7K | 0.00% | 00.0% | Unchanged |
| Colony Group, LLC | 60,733 | $708.1K | 0.00% | 00.0% | Unchanged |
| Raffles Associates LP | 93,774 | $1.09M | 0.95% | 00.0% | Unchanged |
| Graham Capital Wealth Management, LLC | 100,842 | $1.18M | 1.04% | +31,307+45.0% | Added |
| Vanguard Capital Management LLC | 189,943 | $2.21M | 0.00% | +189,943 | New |
| Alliancebernstein L.P. | 516,461 | $6.69M | 0.00% | +3,211+0.6% | Added |
| Tower Research Capital LLC (TRC) | 0 | $0 | 0.00% | −8−100.0% | Sold out |
| UBS Group AG | 0 | $0 | 0.00% | −6−100.0% | Sold out |
| Bank of America Corp | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |