NSTS Bancorp, Inc. (NSTS) Ownership
NSTS ownership summary
as of October 18, 2026- Institutions
- 25.6% of shares outstanding
- Insiders
- 15.96% of shares outstanding
- Shares outstanding
- 5.3M
- Float
- 4.5M shares available to trade
- Short interest
- 0.13% 6,468 shares short
- Days to cover
- 0.47 short interest down 10.1% vs prior month
- Institutions 25.62%
- Insiders 15.96%
- Other investors 58.42%
NSTS top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | AllianceBernstein L.P. | 9.82% | 516K | $7.4M | — | June 30, 2026 |
| 2 | Vanguard Capital Management, LLC | 3.83% | 202K | $2.9M | +11,816 (+6.2%) | June 30, 2026 |
| 3 | Raffles Associates LP | 2.15% | 113K | $1.6M | +19,404 (+20.7%) | June 30, 2026 |
| 4 | GRAHAM CAPITAL WEALTH MANAGEMENT, LLC | 2.08% | 109K | $1.6M | +8,624 (+8.6%) | June 30, 2026 |
| 5 | Yakira Capital Management, Inc. | 1.78% | 94K | $1.3M | +93,634 (0.0%) | June 30, 2026 |
| 6 | The Colony Group LLC | 1.37% | 72K | $1.0M | +11,379 (+18.7%) | June 30, 2026 |
| 7 | Creative Planning Inc | 0.86% | 45K | $641,700 | — | June 30, 2026 |
| 8 | Geode Capital Management, LLC | 0.71% | 38K | $534,907 | −7,365 (−16.4%) | June 30, 2026 |
| 9 | Roberts Glore & Co Inc | 0.69% | 36K | $520,433 | — | June 30, 2026 |
| 10 | Renaissance Technologies Corp | 0.58% | 30K | $434,930 | +13,000 (+74.3%) | June 30, 2026 |
| 11 | Chicago Capital Management, LLC | 0.55% | 29K | $413,825 | +29,020 (0.0%) | June 30, 2026 |
| 12 | Vanguard Fiduciary Trust Co | 0.54% | 28K | $402,046 | +173 (+0.6%) | June 30, 2026 |
| 13 | Penderfund Capital Management Ltd | 0.34% | 18K | $254,199 | +17,826 (0.0%) | June 30, 2026 |
| 14 | BlackRock Inc | 0.31% | 16K | $230,598 | +4,010 (+33.0%) | June 30, 2026 |
| 15 | Css LLC | 0.29% | 15K | $219,704 | +15,407 (0.0%) | June 30, 2026 |
| 16 | Susquehanna International Group, LLP | 0.27% | 14K | $203,191 | +3,067 (+27.4%) | June 30, 2026 |
| 17 | State Street Corp | 0.21% | 11K | $159,783 | — | June 30, 2026 |
| 18 | Longfellow Invest Mngt CO Ltd Partnershp | 0.21% | 11K | $156,461 | +10,972 (0.0%) | June 30, 2026 |
| 19 | HARBOUR INVESTMENTS, INC. | 0.01% | 500 | $7,130 | — | June 30, 2026 |
| 20 | Tower Research Capital LLC | <0.01% | 131 | $1,868 | +131 (0.0%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 14 holders added 238K shares and 1 cut 7,365.
NSTS top mutual fund and ETF holders
11 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Vanguard MStar Total Stk Mkt Idx Invest | 2.78% | 146K | $2.1M | — | August 31, 2026 |
| 2 | Fidelity Extended Market Index | 0.40% | 21K | $296,850 | −112 (−0.5%) | August 31, 2026 |
| 3 | Pender Alternative Arbitrage Plus F | 0.30% | 16K | $223,369 | — | September 30, 2026 |
| 4 | iShares Micro-Cap ETF | 0.27% | 14K | $201,551 | −97 (−0.7%) | September 30, 2026 |
| 5 | Fidelity Total Market Index | 0.14% | 7,574 | $108,005 | — | August 31, 2026 |
| 6 | Fidelity Series Total Market Index | 0.11% | 5,809 | $82,836 | — | August 31, 2026 |
| 7 | Vanguard MStar Inst Ttl StkMktIdxInstlPl | 0.08% | 4,078 | $58,152 | — | August 31, 2026 |
| 8 | Vanguard Balanced Index Inv | 0.05% | 2,489 | $35,493 | — | August 31, 2026 |
| 9 | Pender Alternative Arbitrage Cl FF | 0.04% | 2,362 | $33,682 | — | August 31, 2026 |
| 10 | Schwab Total Stock Market Index | 0.03% | 1,610 | $22,959 | — | August 31, 2026 |
| 11 | 1290 VT Micro Cap K | 0.02% | 888 | $12,663 | −211 (−19.2%) | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
NSTS insider transactions
latest 1| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2024-08-12 | Thomas M Ivantic | Sell | $10.06 | 530 | $5,332 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
NSTS shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns NSTS
Institutional investors own 25.6% of NSTS Bancorp's shares and insiders 15.96%. The largest holder is AllianceBernstein L.P. with 9.82% of the shares (516K), as of June 30, 2026. Among the top 20 institutions, 14 added shares and 1 reduced their stake in the latest filings. Short interest is 0.13% of the float, or 0.47 days of average trading volume. The share count fell 8.9% since 2020.
Related: NSTS key metrics. See the NSTS stock overview for the latest quote and news.
NSTS ownership FAQ
Who owns the most NSTS Bancorp stock?
The largest shareholders of NSTS Bancorp are AllianceBernstein L.P. (9.82%), Vanguard Capital Management, LLC (3.83%), Raffles Associates LP (2.15%), GRAHAM CAPITAL WEALTH MANAGEMENT, LLC (2.08%), Yakira Capital Management, Inc. (1.78%).
What percentage of NSTS Bancorp is owned by institutions?
Institutions hold 25.6% of NSTS Bancorp's shares outstanding; insiders hold 15.96%.
Which funds own NSTS Bancorp?
The largest fund holders of NSTS Bancorp are Vanguard MStar Total Stk Mkt Idx Invest (2.78%), Fidelity Extended Market Index (0.40%), Pender Alternative Arbitrage Plus F (0.30%), iShares Micro-Cap ETF (0.27%), Fidelity Total Market Index (0.14%).
What is NSTS Bancorp's short interest?
6,468 shares of NSTS Bancorp were sold short, 0.13% of the float; at the average daily volume it would take 0.47 days to cover.
Are insiders buying or selling NSTS Bancorp?
Of the latest 1 reported insider transactions in NSTS Bancorp (since August 12, 2024), 0 were purchases and 1 were sales.
How many shares of NSTS Bancorp are outstanding?
NSTS Bancorp has 5.3M shares outstanding, of which 4.5M are in the public float.