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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, Q1 2023

Institutional positions in Middlefield Banc Corp as of Mar 31, 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
41
+1 vs. Q4 2022
Shares held
1.57M
+13.6K (+0.9%) vs. Q4 2022
Total value
$43.9M
+$1.34M (+3.1%) vs. Q4 2022
New holders
5
18 more added
Sold out
4
11 more reduced

1 institution that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2022: 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 holdersQ1 2023: 41 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 heldQ1 2023: $43.9M
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, Q1 2023

Shares, value and share of portfolio for each institution holding Middlefield Banc Corp; share changes are against Q4 2022.

Institutions holding MBCN in Q1 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Vanguard Group Inc320,950$8.99M0.00%+3,549+1.1%Added
Alliancebernstein L.P.264,485$7.41M0.00%+231,530+702.6%Added
Dimensional Fund Advisors LP84,651$2.37M0.00%−15,169−15.2%Reduced
BlackRock Inc.78,013$2.19M0.00%+36,154+86.4%Added
Geode Capital Management, LLC70,985$1.99M0.00%+20,952+41.9%Added
Millennium Management LLC52,840$1.48M0.00%+15,691+42.2%Added
Susquehanna International Group, LLP50,768$1.42M0.00%+40,215+381.1%Added
Clearstead Advisors, LLC48,982$1.37M0.10%00.0%Unchanged
Bridgeway Capital Management, LLC48,235$1.35M0.04%−665−1.4%Reduced
Strategic Value Bank Partners LLC44,779$1.25M0.74%−7,456−14.3%Reduced
Ancora Advisors, LLC40,809$1.14M0.03%−324,935−88.8%Reduced
Renaissance Technologies LLC40,012$1.12M0.00%−9,100−18.5%Reduced
Fundamentun, LLC39,404$1.10M0.19%00.0%Unchanged
Lineweaver Wealth Advisors, LLC39,402$1.10M0.34%00.0%Unchanged
Huntington National Bank34,952$979.2K0.01%+15,998+84.4%Added
Triasima Portfolio Management inc.28,202$790.1K0.07%+28,202New
John G Ullman & Associates Inc27,170$761.0K0.12%−250−0.9%Reduced
Redmont Wealth Advisors LLC27,162$760.9K1.54%−310−1.1%Reduced
Goldman Sachs Group Inc21,057$589.9K0.00%+21,057New
State Street Corp19,500$546.3K0.00%+1,800+10.2%Added
Riggs Asset Managment Co. Inc.18,830$527.5K0.20%00.0%Unchanged
Jane Street Group, LLC16,954$475.0K0.00%+16,954New
Northern Trust Corp16,207$454.0K0.00%+6,066+59.8%Added
Bank of New York Mellon Corp14,641$410.2K0.00%+2,107+16.8%Added
Citigroup Inc13,873$388.7K0.00%+13,140+1,792.6%Added
Wells Fargo & Company12,188$341.4K0.00%+520+4.5%Added
Susquehanna Fundamental Investments, LLC11,772$329.8K0.01%−4,127−26.0%Reduced
Qube Research & Technologies Ltd11,479$321.6K0.00%+11,479New
UBS Group AG11,316$317.0K0.00%+6,092+116.6%Added
Morgan Stanley10,247$287.1K0.00%+3,650+55.3%Added
Cerity Partners LLC8,965$251.2K0.00%00.0%Unchanged
YHB Investment Advisors, Inc.8,952$250.8K0.03%00.0%Unchanged
HRT Financial LP7,656$214.0K0.00%+7,656New
Barclays PLC7,376$206.6K0.00%+2,242+43.7%Added
Cambridge Investment Research Advisors, Inc.7,330$205.0K0.00%+11+0.2%Added
Bank of America Corp6,331$177.4K0.00%+3,636+134.9%Added
Acadian Asset Management LLC761$21.0K0.00%−3,203−80.8%Reduced
Advisor Group Holdings, Inc.600$16.8K0.00%00.0%Unchanged
FMR LLC399$11.2K0.00%+378+1,800.0%Added
Tower Research Capital LLC (TRC)132$4.00K0.00%−137−50.9%Reduced
JPMorgan Chase & Co23$2800.00%−637−96.5%Reduced
Fourthstone LLC0$00.00%−107,399−100.0%Sold out
Rockefeller Capital Management L.P.0$00.00%−2,000−100.0%Sold out
Royal Bank of Canada0$00.00%−83−100.0%Sold out
BNP Paribas Arbitrage, SA0$00.00%−10−100.0%Sold out
Tyler-Stone Wealth Management––––Not filed