ECB Bancorp, Inc. (ECBK) Ownership
ECBK ownership summary
as of October 17, 2026- Institutions
- 30.5% of shares outstanding
- Insiders
- 17.15% of shares outstanding
- Shares outstanding
- 8.7M
- Float
- 8.0M shares available to trade
- Short interest
- 1.47% 115K shares short
- Days to cover
- 10.71 short interest down 9.5% vs prior month
- Institutions 30.51%
- Insiders 17.15%
- Other investors 52.35%
ECBK top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | AllianceBernstein L.P. | 8.63% | 754K | $14.8M | −32,849 (−4.2%) | June 30, 2026 |
| 2 | BlackRock Inc | 4.79% | 418K | $8.2M | +23,740 (+6.0%) | June 30, 2026 |
| 3 | Vanguard Capital Management, LLC | 3.87% | 338K | $6.6M | −45,980 (−12.0%) | June 30, 2026 |
| 4 | Geode Capital Management, LLC | 2.01% | 176K | $3.5M | +21,415 (+13.9%) | June 30, 2026 |
| 5 | Sachetta LLC | 1.36% | 119K | $2.3M | — | June 30, 2026 |
| 6 | Renaissance Technologies Corp | 0.96% | 84K | $1.6M | −4,066 (−4.6%) | June 30, 2026 |
| 7 | State Street Corp | 0.89% | 78K | $1.5M | −1,800 (−2.3%) | June 30, 2026 |
| 8 | Oppenheimer & Close Inc | 0.70% | 61K | $1.2M | — | June 30, 2026 |
| 9 | Northern Trust Corp | 0.65% | 57K | $1.1M | −6,191 (−9.8%) | June 30, 2026 |
| 10 | Maltese Capital Management LLC | 0.63% | 55K | $1.1M | — | June 30, 2026 |
| 11 | Covalent Partners LLC | 0.57% | 50K | $982,500 | +17,000 (+51.5%) | March 31, 2026 |
| 12 | Minerva Advisors LLC | 0.57% | 50K | $981,321 | — | June 30, 2026 |
| 13 | Vanguard Portfolio Management, LLC | 0.57% | 50K | $976,644 | +6,449 (+14.9%) | June 30, 2026 |
| 14 | Vanguard Fiduciary Trust Co | 0.56% | 49K | $962,005 | +509 (+1.1%) | June 30, 2026 |
| 15 | Morgan Stanley - Brokerage Accounts | 0.55% | 48K | $951,984 | +4,587 (+10.5%) | June 30, 2026 |
| 16 | HighTower Advisors, LLC | 0.49% | 43K | $845,048 | — | June 30, 2026 |
| 17 | Raffles Associates LP | 0.30% | 27K | $520,921 | +13,111 (+97.9%) | June 30, 2026 |
| 18 | Charles Schwab Investment Management Inc | 0.25% | 22K | $437,330 | +1,981 (+9.8%) | June 30, 2026 |
| 19 | Stilwell Value LLC | 0.23% | 20K | $393,000 | — | June 30, 2026 |
| 20 | Grimes & Company, Inc. | 0.23% | 20K | $393,000 | — | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 8 holders added 89K shares and 5 cut 91K.
ECBK top mutual fund and ETF holders
16 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Vanguard MStar Total Stk Mkt Idx Invest | 2.86% | 250K | $4.9M | — | August 31, 2026 |
| 2 | iShares Russell 2000 ETF | 1.31% | 114K | $2.2M | −1,344 (−1.2%) | September 30, 2026 |
| 3 | Fidelity Small Cap Index | 0.86% | 75K | $1.5M | −92 (−0.1%) | July 31, 2026 |
| 4 | iShares Russell 2000 Value ETF | 0.73% | 64K | $1.3M | +98 (+0.2%) | September 30, 2026 |
| 5 | Vanguard Russell 2000 ETF | 0.49% | 43K | $844,852 | +1,445 (+3.5%) | August 31, 2026 |
| 6 | Fidelity Extended Market Index | 0.39% | 34K | $667,825 | −183 (−0.5%) | August 31, 2026 |
| 7 | iShares Micro-Cap ETF | 0.27% | 24K | $467,572 | −164 (−0.7%) | September 30, 2026 |
| 8 | Schwab Small Cap Index | 0.20% | 18K | $350,635 | — | August 31, 2026 |
| 9 | Fidelity Total Market Index | 0.16% | 14K | $277,576 | — | August 31, 2026 |
| 10 | iShares Russell 2000 Small-Cap Idx Instl | 0.15% | 13K | $261,954 | — | August 31, 2026 |
| 11 | Fidelity Series Total Market Index | 0.12% | 11K | $207,268 | — | August 31, 2026 |
| 12 | Goldman Sachs ActiveBeta® US SmCp Eq ETF | 0.11% | 9,998 | $196,461 | — | September 30, 2026 |
| 13 | Nuveen Small Cap Blend Idx R6 | 0.11% | 9,947 | $195,459 | — | August 31, 2026 |
| 14 | Fidelity Small Cap Value Index | 0.11% | 9,881 | $194,162 | +417 (+4.4%) | July 31, 2026 |
| 15 | Vanguard Russell 2000 Value ETF | 0.08% | 6,860 | $134,799 | +168 (+2.5%) | August 31, 2026 |
| 16 | Xtrackers Russell 2000 ETF 1C | 0.08% | 6,823 | $134,072 | +281 (+4.3%) | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
ECBK insider transactions
latest 4| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-02-09 | Maura Ellen Sullivan | Buy | $18.50 | 2,200 | $40,700 |
| 2025-12-09 | Maura Ellen Sullivan | Buy | $16.98 | 563 | $9,560 |
| 2025-12-08 | Maura Ellen Sullivan | Buy | $16.83 | 2,937 | $49,430 |
| 2025-09-16 | Richard J O'neil Jr | Buy | $15.85 | 1,250 | $19,812 |
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.
ECBK shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns ECBK
Institutional investors own 30.5% of ECB Bancorp's shares and insiders 17.15%. The largest holder is AllianceBernstein L.P. with 8.63% of the shares (754K), as of June 30, 2026. Among the top 20 institutions, 8 added shares and 5 reduced their stake in the latest filings. Short interest is 1.47% of the float, or 10.71 days of average trading volume. The share count fell 32.5% since 2021.
Related: ECBK key metrics. See the ECBK stock overview for the latest quote and news.
ECBK ownership FAQ
Who owns the most ECB Bancorp stock?
The largest shareholders of ECB Bancorp are AllianceBernstein L.P. (8.63%), BlackRock Inc (4.79%), Vanguard Capital Management, LLC (3.87%), Geode Capital Management, LLC (2.01%), Sachetta LLC (1.36%).
What percentage of ECB Bancorp is owned by institutions?
Institutions hold 30.5% of ECB Bancorp's shares outstanding; insiders hold 17.15%.
Which funds own ECB Bancorp?
The largest fund holders of ECB Bancorp are Vanguard MStar Total Stk Mkt Idx Invest (2.86%), iShares Russell 2000 ETF (1.31%), Fidelity Small Cap Index (0.86%), iShares Russell 2000 Value ETF (0.73%), Vanguard Russell 2000 ETF (0.49%).
What is ECB Bancorp's short interest?
115K shares of ECB Bancorp were sold short, 1.47% of the float; at the average daily volume it would take 10.71 days to cover.
Are insiders buying or selling ECB Bancorp?
Of the latest 4 reported insider transactions in ECB Bancorp (since September 16, 2025), 4 were purchases and 0 were sales.
How many shares of ECB Bancorp are outstanding?
ECB Bancorp has 8.7M shares outstanding, of which 8.0M are in the public float.