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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, Q4 2023

Institutional positions in Middlefield Banc Corp as of Dec 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
57
+8 vs. Q3 2023
Shares held
2.57M
+646.3K (+33.7%) vs. Q3 2023
Total value
$83.1M
+$34.3M (+70.3%) vs. Q3 2023
New holders
9
21 more added
Sold out
1
16 more reduced

Compare with Q3 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 holdersQ4 2023: 57 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 heldQ4 2023: $83.1M
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, Q4 2023

Shares, value and share of portfolio for each institution holding Middlefield Banc Corp; share changes are against Q3 2023.

Institutions holding MBCN in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Castle Creek Capital Partners VI, LP560,500$18.1M12.60%+560,500New
BlackRock Inc.484,202$15.7M0.00%+61,337+14.5%Added
Vanguard Group Inc382,414$12.4M0.00%+3,092+0.8%Added
Geode Capital Management, LLC160,251$5.19M0.00%+10,255+6.8%Added
Alliancebernstein L.P.144,573$4.68M0.00%−52,159−26.5%Reduced
State Street Corp99,084$3.21M0.00%+2,444+2.5%Added
Dimensional Fund Advisors LP81,715$2.65M0.00%−903−1.1%Reduced
Northern Trust Corp66,242$2.14M0.00%+4,664+7.6%Added
Bridgeway Capital Management, LLC49,519$1.60M0.03%+1,344+2.8%Added
Clearstead Advisors, LLC48,982$1.59M0.08%00.0%Unchanged
Renaissance Technologies LLC39,512$1.28M0.00%−300−0.8%Reduced
Fundamentun, LLC39,404$1.28M0.15%00.0%Unchanged
Lineweaver Wealth Advisors, LLC38,502$1.25M0.32%−900−2.3%Reduced
Bank of New York Mellon Corp35,906$1.16M0.00%+1,856+5.5%Added
Huntington National Bank33,754$1.09M0.01%−198−0.6%Reduced
Redmont Wealth Advisors LLC28,028$907.3K1.32%−4,098−12.8%Reduced
UBS Group AG21,878$708.2K0.00%+6,570+42.9%Added
Charles Schwab Investment Management Inc21,421$693.4K0.00%00.0%Unchanged
Bank of America Corp19,649$636.0K0.00%+2,369+13.7%Added
Riggs Asset Managment Co. Inc.18,580$601.4K0.19%00.0%Unchanged
Barclays PLC18,199$589.1K0.00%+9,258+103.5%Added
Morgan Stanley17,963$581.5K0.00%+10,400+137.5%Added
Empowered Funds, LLC15,519$502.4K0.01%+1,344+9.5%Added
Wells Fargo & Company14,849$480.7K0.00%+1,281+9.4%Added
Nuveen Asset Management, LLC14,177$458.9K0.00%+3,829+37.0%Added
Ancora Advisors, LLC12,561$406.6K0.01%−3,140−20.0%Reduced
Rhumbline Advisers11,532$373.3K0.00%+3,485+43.3%Added
Cerity Partners LLC8,965$290.2K0.00%+8,965New
Virtu Financial LLC8,440$273.0K0.02%+8,440New
YHB Investment Advisors, Inc.8,216$266.0K0.03%00.0%Unchanged
Invesco Ltd.7,926$256.6K0.00%+7,926New
JPMorgan Chase & Co7,760$251.2K0.00%+2,168+38.8%Added
Cambridge Investment Research Advisors, Inc.7,574$245.0K0.00%+7,574New
Royal Bank of Canada5,210$168.0K0.00%+3,840+280.3%Added
SG Americas Securities, LLC4,394$142.0K0.00%−189−4.1%Reduced
MetLife Investment Management4,231$137.0K0.00%00.0%Unchanged
National Bank of Canada4,166$135.0K0.00%00.0%Unchanged
American International Group, Inc.3,906$126.4K0.00%−16−0.4%Reduced
New York State Common Retirement Fund3,772$122.1K0.00%+8+0.2%Added
Deutsche Bank AG2,888$93.5K0.00%+2,888New
BNP Paribas Arbitrage, SA2,464$79.8K0.00%−693−22.0%Reduced
California State Teachers Retirement System1,294$41.9K0.00%−440−25.4%Reduced
Citigroup Inc1,122$36.3K0.00%+1,118+27,950.0%Added
Amalgamated Bank686$22.0K0.00%−79−10.3%Reduced
Tower Research Capital LLC (TRC)679$22.0K0.00%+30+4.6%Added
Ameritas Investment Partners, Inc.649$21.0K0.00%00.0%Unchanged
Legal & General Group Plc600$19.4K0.00%00.0%Unchanged
FMR LLC442$14.3K0.00%−1−0.2%Reduced
Metropolitan Life Insurance Co438$14.2K0.00%00.0%Unchanged
GAMMA Investing LLC437$11.5K0.00%+437New
Advisor Group Holdings, Inc.300$9.71K0.00%−300−50.0%Reduced
Frazier Financial Advisors, LLC218$7.07K0.01%+218New
Tyler-Stone Wealth Management200$6.47K0.00%00.0%Unchanged
West Tower Group, LLC81$2.62K0.01%+15+22.7%Added
Qube Research & Technologies Ltd71$2.30K0.00%+71New
Allspring Global Investments Holdings, LLC9$2910.00%−382−97.7%Reduced
Covestor Ltd3$00.00%−2−40.0%Reduced
John G Ullman & Associates Inc0$00.00%−17,611−100.0%Sold out