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Middlefield Banc Corp

MBCNDelisted Mar 2, 2026
Industry
State Commercial Banks
SEC CIK
0000836147

Middlefield Banc Corp was delisted on Mar 2, 2026; its insiders filed their last Form 4 on Mar 2, 2026; 87 institutions reported holding it in 13F filings for Q4 2025, worth $81.0M in total; no superinvestor held it.

13F holders, Q2 2023

Institutional positions in Middlefield Banc Corp as of Jun 30, 2023. 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
51
+10 vs. Q1 2023
Shares held
2.06M
+488.0K (+31.1%) vs. Q1 2023
Total value
$55.1M
+$11.2M (+25.4%) vs. Q1 2023
New holders
17
15 more added
Sold out
7
11 more reduced

Compare with Q1 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MBCN 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 holdersQ2 2023: 51 institutions
Q1 2021: 44 institutionsQ2 2021: 43 institutionsQ3 2021: 36 institutionsQ4 2021: 39 institutionsQ1 2022: 40 institutionsQ2 2022: 37 institutionsQ3 2022: 36 institutionsQ4 2022: 41 institutionsQ1 2023: 41 institutionsQ2 2023: 51 institutionsQ3 2023: 49 institutionsQ4 2023: 57 institutionsQ1 2024: 53 institutionsQ2 2024: 59 institutionsQ3 2024: 60 institutionsQ4 2024: 63 institutionsQ1 2025: 68 institutionsQ2 2025: 69 institutionsQ3 2025: 73 institutionsQ4 2025: 87 institutionsQ1 2026: 1 institutionQ2 2026: 0 institutions
Value heldQ2 2023: $55.1M
Q1 2021: $49.7MQ2 2021: $45.7MQ3 2021: $42.9MQ4 2021: $42.4MQ1 2022: $42.5MQ2 2022: $41.1MQ3 2022: $45.1MQ4 2022: $42.6MQ1 2023: $43.9MQ2 2023: $55.1MQ3 2023: $48.8MQ4 2023: $83.1MQ1 2024: $60.4MQ2 2024: $61.6MQ3 2024: $76.3MQ4 2024: $76.2MQ1 2025: $75.4MQ2 2025: $83.5MQ3 2025: $83.2MQ4 2025: $81.0MQ1 2026: $67Q2 2026: $0
Institutions holding MBCN and their total value by quarter
QuarterHoldersValue
Q2 20260$0
Q1 20261$67
Q4 202587$81.0M
Q3 202573$83.2M
Q2 202569$83.5M
Q1 202568$75.4M
Q4 202463$76.2M
Q3 202460$76.3M
Q2 202459$61.6M
Q1 202453$60.4M
Q4 202357$83.1M
Q3 202349$48.8M
Q2 202351$55.1M
Q1 202341$43.9M
Q4 202241$42.6M
Q3 202236$45.1M
Q2 202237$41.1M
Q1 202240$42.5M
Q4 202139$42.4M
Q3 202136$42.9M
Q2 202143$45.7M
Q1 202144$49.7M

Institutions, Q2 2023

Shares, value and share of portfolio for each institution holding Middlefield Banc Corp; share changes are against Q1 2023.

Institutions holding MBCN in Q2 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Tyler-Stone Wealth Management200$5.00K0.00%+200New
Tower Research Capital LLC (TRC)325$8.71K0.00%+193+146.2%Added
FMR LLC400$10.7K0.00%+1+0.3%Added
Metropolitan Life Insurance Co438$11.7K0.00%+438New
Advisor Group Holdings, Inc.600$16.1K0.00%00.0%Unchanged
Ameritas Investment Partners, Inc.649$17.4K0.00%+649New
Acadian Asset Management LLC761$20.0K0.00%00.0%Unchanged
Legal & General Group Plc749$20.1K0.00%+749New
Amalgamated Bank765$21.0K0.00%+765New
Royal Bank of Canada1,071$29.0K0.00%+1,071New
BNP Paribas Arbitrage, SA2,042$54.7K0.00%+2,042New
Citigroup Inc2,340$62.7K0.00%−11,533−83.1%Reduced
California State Teachers Retirement System2,615$70.1K0.00%+2,615New
New York State Common Retirement Fund3,700$99.2K0.00%+3,700New
American International Group, Inc.3,783$101.4K0.00%+3,783New
National Bank of Canada4,166$111.2K0.00%+4,166New
MetLife Investment Management4,231$113.4K0.00%+4,231New
JPMorgan Chase & Co6,500$174.2K0.00%+6,477+28,160.9%Added
Cambridge Investment Research Advisors, Inc.7,544$202.0K0.00%+214+2.9%Added
Rhumbline Advisers7,635$204.6K0.00%+7,635New
YHB Investment Advisors, Inc.8,952$239.9K0.02%00.0%Unchanged
Barclays PLC8,954$240.0K0.00%+1,578+21.4%Added
Cerity Partners LLC8,965$240.3K0.00%00.0%Unchanged
Morgan Stanley9,118$244.4K0.00%−1,129−11.0%Reduced
Nuveen Asset Management, LLC10,348$277.3K0.00%+10,348New
Goldman Sachs Group Inc12,783$342.6K0.00%−8,274−39.3%Reduced
Empowered Funds, LLC13,069$350.2K0.01%+13,069New
EA Series Trust13,069$350.2K0.01%+13,069New
Wells Fargo & Company14,627$392.0K0.00%+2,439+20.0%Added
UBS Group AG15,637$419.1K0.00%+4,321+38.2%Added
Bank of America Corp16,536$443.2K0.00%+10,205+161.2%Added
Riggs Asset Managment Co. Inc.18,580$497.9K0.18%−250−1.3%Reduced
Charles Schwab Investment Management Inc21,421$574.1K0.00%+21,421New
John G Ullman & Associates Inc26,970$722.8K0.11%−200−0.7%Reduced
Redmont Wealth Advisors LLC30,165$808.4K1.39%+3,003+11.1%Added
Bank of New York Mellon Corp33,786$905.5K0.00%+19,145+130.8%Added
Huntington National Bank34,952$936.7K0.01%00.0%Unchanged
Ancora Advisors, LLC38,309$1.03M0.03%−2,500−6.1%Reduced
Lineweaver Wealth Advisors, LLC39,402$1.06M0.30%00.0%Unchanged
Fundamentun, LLC39,404$1.06M0.16%00.0%Unchanged
Renaissance Technologies LLC39,712$1.06M0.00%−300−0.7%Reduced
Strategic Value Bank Partners LLC42,446$1.14M0.75%−2,333−5.2%Reduced
Bridgeway Capital Management, LLC47,069$1.26M0.03%−1,166−2.4%Reduced
Clearstead Advisors, LLC48,982$1.31M0.08%00.0%Unchanged
Northern Trust Corp64,947$1.74M0.00%+48,740+300.7%Added
Dimensional Fund Advisors LP83,473$2.24M0.00%−1,178−1.4%Reduced
State Street Corp92,474$2.48M0.00%+72,974+374.2%Added
Geode Capital Management, LLC150,235$4.03M0.00%+79,250+111.6%Added
Alliancebernstein L.P.241,734$6.48M0.00%−22,751−8.6%Reduced
Vanguard Group Inc367,215$9.84M0.00%+46,265+14.4%Added
BlackRock Inc.412,495$11.1M0.00%+334,482+428.8%Added
Millennium Management LLC0$00.00%−52,840−100.0%Sold out
Susquehanna International Group, LLP0$00.00%−50,768−100.0%Sold out
Triasima Portfolio Management inc.0$00.00%−28,202−100.0%Sold out
Jane Street Group, LLC0$00.00%−16,954−100.0%Sold out
Susquehanna Fundamental Investments, LLC0$00.00%−11,772−100.0%Sold out
Qube Research & Technologies Ltd0$00.00%−11,479−100.0%Sold out
HRT Financial LP0$00.00%−7,656−100.0%Sold out