NSTS Institutional Ownership & Shareholders
NSTS BANCORP INC (NSTS) is currently held by 23 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $16.71M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Alliancebernstein L.P. is currently the largest disclosed institutional shareholder of NSTS tracked by InsiderSet, reporting ownership valued at approximately $6.02M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $7.36M, representing an estimated gain of +22.30% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 91% of the total disclosed NSTS value among the investors covered in this analysis. Major shareholders include Alliancebernstein L.P., Vanguard Capital Management Llc, Graham Capital Wealth Management, Llc, and several other long-term asset managers with concentrated positions in NSTS BANCORP INC (NSTS).
This page ranks the largest institutional NSTS shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
23
Total Reported Value
$16.71M
Largest Holder
Alliancebernstein L.P.
Largest Position
$6.02M
Insider Transactions (90d)
14
Latest Filing Quarter
Q2 2026
New Institutional Positions
31
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Alliancebernstein L.P. | 0.00% | 516,461 | $6,021,935 | $7,364,734 | +$1,342,799 | +22.30% | |
| Vanguard Capital Management Llc | 0.00% | 201,759 | $2,776,204 | $2,877,083 | +$100,879 | +3.63% | |
| Graham Capital Wealth Management, Llc | 1.16% | 109,466 | $1,506,252 | $1,560,985 | +$54,733 | +3.63% | |
| Yakira Capital Management, Inc. | 0.38% | 93,634 | $1,288,404 | $1,335,221 | +$46,817 | +3.63% | |
| Focus Partners Wealth | 0.00% | 72,112 | $992,261 | $1,028,317 | +$36,056 | +3.63% | |
| Raffles Associates Lp | 0.66% | 56,589 | $778,665 | $806,959 | +$28,294 | +3.63% | |
| Geode Capital Management, Llc | 0.00% | 37,511 | $516,358 | $534,907 | +$18,549 | +3.59% | |
| Roberts Glore & Co Inc | 0.12% | 36,496 | $502,185 | $520,433 | +$18,248 | +3.63% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 30,500 | $419,680 | $434,930 | +$15,250 | +3.63% |
| Vanguard Fiduciary Trust Co | 0.00% | 28,194 | $387,949 | $402,046 | +$14,097 | +3.63% | |
| Chicago Capital Management, Llc | 0.27% | 29,020 | $303,793 | $413,825 | +$110,032 | +36.22% | |
| Penderfund Capital Management Ltd. | 0.03% | 17,826 | $245,286 | $254,199 | +$8,913 | +3.63% | |
| Blackrock, Inc. | 0.00% | 16,171 | $222,513 | $230,598 | +$8,085 | +3.63% | |
| Css Llc/Il | 0.01% | 15,407 | $212,000 | $219,704 | +$7,704 | +3.63% | |
| Susquehanna International Group, Llp | 0.00% | 14,249 | $196,066 | $203,191 | +$7,125 | +3.63% | |
| State Street Corp | 0.00% | 11,205 | $154,181 | $159,783 | +$5,602 | +3.63% | |
| Longfellow Investment Management Co Llc | 0.03% | 10,972 | $150,975 | $156,461 | +$5,486 | +3.63% | |
| American Capital Advisory, Llc | 0.00% | 850 | $11,696 | $12,121 | +$425 | +3.63% | |
| Harbour Investments, Inc. | 0.00% | 500 | $6,880 | $7,130 | +$250 | +3.63% | |
| Tower Research Capital Llc (Trc) | 0.00% | 131 | $1,803 | $1,868 | +$65 | +3.61% | |
| Russell Investments Group, Ltd. | 0.00% | 85 | $1,170 | $1,212 | +$42 | +3.60% | |
| Barclays Plc | 0.00% | 6 | $83 | $86 | +$3 | +3.08% | |
| Caitong International Asset Management Co., Ltd | 0.00% | 6 | $83 | $86 | +$3 | +3.08% |
Frequently asked questions about NSTS
Who are the largest institutional holders of NSTS?
The largest institutional holders of NSTS reported in the latest SEC Form 13F filings include Alliancebernstein L.P., Vanguard Capital Management Llc, Graham Capital Wealth Management, Llc, Yakira Capital Management, Inc., and Focus Partners Wealth. InsiderSet ranks institutional holders by their latest reported NSTS position.
What is NSTS institutional ownership?
This page tracks NSTS positions reported by institutional investment managers through SEC Form 13F. NSTS BANCORP INC (NSTS) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own NSTS?
InsiderSet currently tracks 23 institutional managers reporting NSTS holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of NSTS shareholders.
How much NSTS stock do institutions own?
Institutional investment managers disclosed approximately $16.71M in NSTS holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was NSTS institutional ownership last updated?
The latest NSTS institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional NSTS holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its NSTS position after the reporting date.
Are institutions buying or selling NSTS?
Institutional buying and selling can be analyzed by comparing NSTS positions across consecutive 13F reporting periods. InsiderSet's NSTS Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View NSTS ownership changes.
How has NSTS institutional ownership changed over time?
InsiderSet tracks NSTS institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.