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Livermore
Livermore
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ECB Bancorp, Inc.

ECBK
Exchange
Nasdaq
Industry
Savings Institutions, Not Federally Chartered
SEC CIK
0001914605

No open-market purchases or sales by ECB Bancorp, Inc. insiders were filed in the last 90 days; 60 institutions reported holding it in 13F filings for Q2 2026, worth $49.5M in total; no superinvestor holds it.

13F holders, Q1 2026

Institutional positions in ECB 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
59
+9 vs. Q4 2025
Shares held
2.66M
+457.1K (+20.8%) vs. Q4 2025
Total value
$44.9M
+$6.72M (+17.6%) vs. Q4 2025
New holders
11
14 more added
Sold out
2
21 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 ECBK 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.

Institutional holdersQ1 2026: 59 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 0 institutionsQ2 2022: 0 institutionsQ3 2022: 20 institutionsQ4 2022: 21 institutionsQ1 2023: 21 institutionsQ2 2023: 18 institutionsQ3 2023: 24 institutionsQ4 2023: 26 institutionsQ1 2024: 26 institutionsQ2 2024: 22 institutionsQ3 2024: 24 institutionsQ4 2024: 26 institutionsQ1 2025: 27 institutionsQ2 2025: 40 institutionsQ3 2025: 49 institutionsQ4 2025: 51 institutionsQ1 2026: 59 institutionsQ2 2026: 60 institutions
Value heldQ1 2026: $44.9M
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $0Q2 2022: $0Q3 2022: $26.1MQ4 2022: $28.9MQ1 2023: $25.1MQ2 2023: $23.0MQ3 2023: $21.3MQ4 2023: $26.5MQ1 2024: $27.8MQ2 2024: $26.3MQ3 2024: $30.6MQ4 2024: $33.0MQ1 2025: $33.3MQ2 2025: $41.2MQ3 2025: $41.7MQ4 2025: $46.5MQ1 2026: $44.9MQ2 2026: $49.5M
Institutions holding ECBK and their total value by quarter
QuarterHoldersValue
Q2 202660$49.5M
Q1 202659$44.9M
Q4 202551$46.5M
Q3 202549$41.7M
Q2 202540$41.2M
Q1 202527$33.3M
Q4 202426$33.0M
Q3 202424$30.6M
Q2 202422$26.3M
Q1 202426$27.8M
Q4 202326$26.5M
Q3 202324$21.3M
Q2 202318$23.0M
Q1 202321$25.1M
Q4 202221$28.9M
Q3 202220$26.1M
Q2 20220$0
Q1 20220$0
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding ECB Bancorp, Inc.; share changes are against Q4 2025.

Institutions holding ECBK in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Alliancebernstein L.P.787,279$13.7M0.00%−10,986−1.4%Reduced
BlackRock, Inc.394,646$6.60M0.00%−5,223−1.3%Reduced
Vanguard Capital Management LLC383,922$6.42M0.00%+383,922New
Geode Capital Management, LLC154,247$2.58M0.00%−16,488−9.7%Reduced
Sachetta, LLC118,853$1.99M1.08%00.0%Unchanged
Renaissance Technologies LLC87,866$1.47M0.00%−4,534−4.9%Reduced
State Street Corp79,592$1.33M0.00%+4,300+5.7%Added
Northern Trust Corp63,403$1.06M0.00%+1,135+1.8%Added
Oppenheimer & Close, LLC61,007$1.02M0.64%00.0%Unchanged
Maltese Capital Management LLC55,198$923.5K0.18%+9,698+21.3%Added
Covalent Partners LLC50,000$836.5K5.89%+17,000+51.5%Added
Minerva Advisors LLC49,940$835.5K0.54%00.0%Unchanged
Vanguard Fiduciary Trust Co48,448$810.5K0.00%+48,448New
Morgan Stanley43,860$733.8K0.00%−2,476−5.3%Reduced
Vanguard Portfolio Management LLC43,253$723.6K0.00%+43,253New
HighTower Advisors, LLC43,005$719.5K0.00%+50.0%Added
Goldman Sachs Group Inc31,079$520.0K0.00%+10,356+50.0%Added
Charles Schwab Investment Management Inc20,275$339.2K0.00%−3,505−14.7%Reduced
Grimes & Company, Inc.20,000$334.6K0.01%00.0%Unchanged
Stilwell Value LLC20,000$334.6K0.20%00.0%Unchanged
Bank of New York Mellon Corp16,971$283.9K0.00%−1,427−7.8%Reduced
Raffles Associates LP13,399$224.2K0.19%−854−6.0%Reduced
Mariner, LLC12,887$215.6K0.00%+1,328+11.5%Added
Rhumbline Advisers9,784$163.7K0.00%−199−2.0%Reduced
UBS Group AG9,452$158.1K0.00%+1,402+17.4%Added
Farther Finance Advisors, LLC5,000$84.5K0.00%00.0%Unchanged
New York State Common Retirement Fund4,218$70.6K0.00%00.0%Unchanged
Mirae Asset Global ETFs Holdings Ltd.3,626$60.7K0.00%+99+2.8%Added
Wells Fargo & Company3,374$56.4K0.00%−5,575−62.3%Reduced
Deutsche Bank AG3,098$51.8K0.00%+3,098New
JPMorgan Chase & Co3,083$50.9K0.00%−958−23.7%Reduced
Barclays PLC2,287$38.3K0.00%−9,634−80.8%Reduced
Vanguard Global Advisers, LLC2,279$38.1K0.00%+2,279New
Police & Firemen's Retirement System of New Jersey1,843$30.8K0.00%00.0%Unchanged
BNP Paribas Arbitrage, SA1,775$29.7K0.00%−501−22.0%Reduced
Russell Investments Group, Ltd.1,577$26.4K0.00%+341+27.6%Added
Tower Research Capital LLC (TRC)1,073$18.0K0.00%+463+75.9%Added
Ameritas Investment Partners, Inc.786$13.2K0.00%00.0%Unchanged
Legal & General Group Plc695$11.6K0.00%00.0%Unchanged
Citigroup Inc506$8.46K0.00%+336+197.6%Added
California State Teachers Retirement System406$6.79K0.00%−53−11.5%Reduced
UBS Asset Management Americas Inc369$6.17K0.00%+369New
CWM, LLC265$4.43K0.00%−17−6.0%Reduced
Sterling Capital Management LLC248$4.15K0.00%−185−42.7%Reduced
FMR LLC155$2.59K0.00%−300−65.9%Reduced
Royal Bank of Canada126$2.00K0.00%−920−88.0%Reduced
American Capital Advisory, LLC100$1.67K0.00%00.0%Unchanged
Essential Partners LLC82$1.37K0.00%−26−24.1%Reduced
Advisory Services Network, LLC81$1.35K0.00%+81New
Covestor Ltd56$1.00K0.00%−65−53.7%Reduced
TD Private Client Wealth LLC37$6190.00%+37New
Cornerstone Planning Group LLC29$5280.00%+29New
EverSource Wealth Advisors, LLC19$3180.00%+2+11.8%Added
Nisa Investment Advisors, LLC17$2840.00%+17New
The PNC Financial Services Group, Inc.16$2680.00%−8−33.3%Reduced
IFP Advisors, Inc11$1840.00%00.0%Unchanged
Allworth Financial LP3$510.00%+2+200.0%Added
MAI Capital Management2$340.00%00.0%Unchanged
Root Financial Partners, LLC2$330.00%+2New
Bank of America Corp0$00.00%−6,764−100.0%Sold out
Amalgamated Bank0$00.00%−236−100.0%Sold out
Vanguard Group Inc––––Not filed