ECB BANCORP INC (ECBK) Institutional Shareholders
ECB BANCORP INC (ECBK) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $49.31M in ECBK holdings during the latest filing period.
Alliancebernstein L.P. is currently the largest disclosed institutional shareholder of ECBK tracked by InsiderSet, reporting ownership valued at approximately $12.62M 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 $15.78M, representing an estimated gain of +25.04% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 82% of the total disclosed ECBK value among the investors covered in this analysis. Major shareholders include Alliancebernstein L.P., Blackrock, Inc., Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in ECB BANCORP INC (ECBK).
This page ranks the largest institutional ECBK 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
60
Total Reported Value
$49.31M
Largest Holder
Alliancebernstein L.P.
Largest Position
$12.62M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
68
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% | 754,430 | $12,621,614 | $15,782,676 | +$3,161,062 | +25.04% | |
| Blackrock, Inc. | 0.00% | 418,386 | $8,401,191 | $8,752,635 | +$351,444 | +4.18% | |
| Vanguard Capital Management Llc | 0.00% | 337,942 | $6,785,875 | $7,069,747 | +$283,872 | +4.18% | |
| Geode Capital Management, Llc | 0.00% | 175,662 | $3,527,855 | $3,674,849 | +$146,994 | +4.17% | |
| Sachetta, Llc | 1.16% | 118,853 | $2,386,569 | $2,486,405 | +$99,836 | +4.18% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 83,800 | $1,682,704 | $1,753,096 | +$70,392 | +4.18% |
| State Street Corp | 0.00% | 77,792 | $1,562,063 | $1,627,409 | +$65,346 | +4.18% | |
| Oppenheimer & Close, Llc | 0.77% | 61,007 | $1,225,021 | $1,276,266 | +$51,245 | +4.18% | |
| Northern Trust Corp | 0.00% | 57,212 | $1,148,816 | $1,196,875 | +$48,059 | +4.18% | |
| Maltese Capital Management Llc | 0.20% | 55,198 | $1,108,375 | $1,154,742 | +$46,367 | +4.18% | |
| Vanguard Portfolio Management Llc | 0.00% | 49,702 | $998,016 | $1,039,766 | +$41,750 | +4.18% | |
| Vanguard Fiduciary Trust Co | 0.00% | 48,957 | $983,057 | $1,024,180 | +$41,123 | +4.18% | |
| Morgan Stanley | 0.00% | 48,447 | $972,817 | $1,013,511 | +$40,694 | +4.18% | |
| Covalent Partners Llc | 5.89% | 50,000 | $836,500 | $1,046,000 | +$209,500 | +25.04% | |
| Minerva Advisors Llc | 0.54% | 49,940 | $835,496 | $1,044,745 | +$209,249 | +25.04% | |
| Charles Schwab Investment Management Inc | 0.00% | 22,256 | $446,900 | $465,596 | +$18,696 | +4.18% | |
| Grimes & Co Wealth Management, Llc | 0.01% | 20,000 | $401,600 | $418,400 | +$16,800 | +4.18% | |
| Stilwell Value Llc | 0.23% | 20,000 | $401,600 | $418,400 | +$16,800 | +4.18% | |
| Bank Of New York Mellon Corp | 0.00% | 17,909 | $359,613 | $374,656 | +$15,043 | +4.18% | |
| Nuveen, Llc | 0.00% | 16,898 | $339,312 | $353,506 | +$14,194 | +4.18% | |
| Aqr Capital Management Llc | 0.00% | 13,756 | $276,220 | $287,776 | +$11,556 | +4.18% | |
| Raffles Associates Lp | 0.23% | 13,255 | $266,160 | $277,295 | +$11,135 | +4.18% | |
| Mariner, Llc | 0.00% | 12,980 | $260,638 | $271,542 | +$10,904 | +4.18% | |
| Rhumbline Advisers | 0.00% | 10,154 | $203,887 | $212,422 | +$8,535 | +4.19% | |
| Citadel Advisors Llc | 0.00% | 10,083 | $202,467 | $210,936 | +$8,469 | +4.18% | |
| Deutsche Bank Ag\ | 0.00% | 7,255 | $145,680 | $151,775 | +$6,095 | +4.18% | |
| Wells Fargo & Company/Mn | 0.00% | 6,771 | $135,962 | $141,649 | +$5,687 | +4.18% | |
| Russell Investments Group, Ltd. | 0.00% | 5,666 | $113,773 | $118,533 | +$4,760 | +4.18% | |
| Farther Finance Advisors, Llc | 0.00% | 5,007 | $100,541 | $104,746 | +$4,205 | +4.18% | |
| New York State Common Retirement Fund | 0.00% | 4,218 | $84,697 | $88,241 | +$3,544 | +4.18% | |
| Citigroup Inc | 0.00% | 3,469 | $69,657 | $72,571 | +$2,914 | +4.18% | |
| Mirae Asset Global Etfs Holdings Ltd. | 0.00% | 3,428 | $68,834 | $71,714 | +$2,880 | +4.18% | |
| Jpmorgan Chase & Co | 0.00% | 3,114 | $62,467 | $65,145 | +$2,678 | +4.29% | |
| Bnp Paribas Financial Markets | 0.00% | 2,299 | $46,164 | $48,095 | +$1,931 | +4.18% | |
| Vanguard Global Advisers, Llc | 0.00% | 2,279 | $45,762 | $47,677 | +$1,915 | +4.18% | |
| Ubs Group Ag | 0.00% | 1,861 | $37,369 | $38,932 | +$1,563 | +4.18% | |
| Police & Firemen'S Retirement System Of New Jersey | 0.00% | 1,843 | $37,007 | $38,556 | +$1,549 | +4.18% | |
| Tower Research Capital Llc (Trc) | 0.00% | 1,588 | $31,887 | $33,221 | +$1,334 | +4.18% | |
| Barclays Plc | 0.00% | 1,433 | $28,775 | $29,978 | +$1,203 | +4.18% | |
| Ameritas Investment Partners, Inc. | 0.00% | 786 | $15,783 | $16,443 | +$660 | +4.18% | |
| Legal & General Group Plc | 0.00% | 695 | $13,956 | $14,539 | +$583 | +4.18% | |
| Royal Bank Of Canada | 0.00% | 466 | $9,000 | $9,749 | +$749 | +8.32% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.00% | 369 | $6,173 | $7,719 | +$1,546 | +25.05% | |
| Arax Advisory Partners | 0.00% | 272 | $5,462 | $5,690 | +$228 | +4.18% | |
| Fmr Llc | 0.00% | 221 | $4,438 | $4,623 | +$185 | +4.18% | |
| Cwm, Llc | 0.00% | 265 | $4,433 | $5,544 | +$1,111 | +25.06% | |
| Sterling Capital Management Llc | 0.00% | 140 | $2,811 | $2,929 | +$118 | +4.19% | |
| California State Teachers Retirement System | 0.00% | 103 | $2,068 | $2,155 | +$87 | +4.20% | |
| American Capital Advisory, Llc | 0.00% | 100 | $2,008 | $2,092 | +$84 | +4.18% | |
| Covestor Ltd | 0.00% | 49 | $1,000 | $1,025 | +$25 | +2.51% |
Frequently asked questions about ECBK
Who owns the most ECBK stock?
The largest holders of ECBK are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for ECB BANCORP INC (ECBK).
Is ECBK widely held by superinvestors?
Many widely followed stocks like ECBK appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly ECBK is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.