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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 2025

Institutional positions in Middlefield Banc Corp as of Dec 31, 2025. 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

MBCN is no longer listed, so this page shows Q4 2025. 13F filings for later quarters list far fewer holders.

Institutional holders
87
+15 vs. Q3 2025
Shares held
2.35M
+135.4K (+6.1%) vs. Q3 2025
Total value
$81.0M
+$14.7M (+22.1%) vs. Q3 2025
New holders
17
30 more added
Sold out
2
19 more reduced

1 institution that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2025: 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 2025: 87 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 2025: $81.0M
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 2025

Shares, value and share of portfolio for each institution holding Middlefield Banc Corp; share changes are against Q3 2025.

Institutions holding MBCN in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock, Inc.464,415$16.0M0.00%−9,146−1.9%Reduced
Vanguard Group Inc411,069$14.2M0.00%−2,669−0.6%Reduced
Geode Capital Management, LLC172,196$5.95M0.00%+1,458+0.9%Added
State Street Corp112,447$3.88M0.00%+8,422+8.1%Added
Alliancebernstein L.P.105,015$3.63M0.00%−92,501−46.8%Reduced
Gardner Lewis Asset Management L P93,365$3.22M0.82%+93,365New
Dimensional Fund Advisors LP84,399$2.91M0.00%+522+0.6%Added
Glazer Capital, LLC52,666$1.82M0.05%+52,666New
Bridgeway Capital Management, LLC50,775$1.75M0.04%+353+0.7%Added
Northern Trust Corp50,143$1.73M0.00%−5,289−9.5%Reduced
Fundamentun, LLC39,404$1.36M0.05%00.0%Unchanged
Frazier Financial Advisors, LLC38,664$1.34M0.79%+38,434+16,710.4%Added
Clearstead Advisors, LLC34,684$1.20M0.02%−4,684−11.9%Reduced
Huntington National Bank33,309$1.15M0.01%−4,981−13.0%Reduced
Renaissance Technologies LLC33,212$1.15M0.00%−2,900−8.0%Reduced
JPMorgan Chase & Co33,007$1.14M0.00%+25,503+339.9%Added
Prelude Capital Management, LLC29,797$1.03M0.08%+29,797New
Bank of New York Mellon Corp26,936$930.4K0.00%−498−1.8%Reduced
Barclays PLC26,761$924.3K0.00%+2,087+8.5%Added
Redmont Wealth Advisors LLC26,376$911.0K1.38%−90−0.3%Reduced
Citadel Advisors LLC25,714$888.2K0.00%−2,801−9.8%Reduced
CSS LLC23,507$811.9K0.05%+23,507New
Demming Financial Services Corp22,953$792.8K0.60%+22,953New
Charles Schwab Investment Management Inc21,424$740.0K0.00%00.0%Unchanged
Morgan Stanley20,541$709.5K0.00%+3,532+20.8%Added
Wells Fargo & Company19,053$658.1K0.00%+2,588+15.7%Added
Riggs Asset Managment Co. Inc.18,390$635.2K0.13%00.0%Unchanged
Bank of America Corp15,840$547.1K0.00%+2,976+23.1%Added
Jane Street Group, LLC15,267$527.3K0.00%+2,096+15.9%Added
Quantinno Capital Management LP15,101$521.6K0.00%+6,272+71.0%Added
Millennium Management LLC15,026$519.0K0.00%+15,026New
Cetera Investment Advisers14,335$495.1K0.00%+453+3.3%Added
Prospera Financial Services Inc13,828$477.6K0.01%+500+3.8%Added
Goldman Sachs Group Inc13,716$473.8K0.00%−2,656−16.2%Reduced
Oxford Asset Management LLP12,715$439.2K0.16%+12,715New
Nuveen, LLC12,437$429.6K0.00%00.0%Unchanged
United Capital Financial Advisers, LLC11,700$404.1K0.00%00.0%Unchanged
Squarepoint Ops LLC11,281$389.6K0.00%+11,281New
UBS Group AG10,953$378.3K0.00%−1,526−12.2%Reduced
HSBC Holdings PLC10,607$363.7K0.00%+1,172+12.4%Added
Rhumbline Advisers9,388$324.3K0.00%−1,135−10.8%Reduced
Cerity Partners LLC9,180$317.1K0.00%+51+0.6%Added
Keeler & Nadler Financial Planning & Wealth Management9,064$313.1K0.11%00.0%Unchanged
McDonald Partners LLC8,100$279.8K0.09%+8,100New
Cambridge Investment Research Advisors, Inc.7,691$266.0K0.00%+11+0.1%Added
Deutsche Bank AG7,578$261.7K0.00%+7,578New
YHB Investment Advisors, Inc.6,666$230.2K0.02%00.0%Unchanged
Ancora Advisors, LLC6,157$212.7K0.00%00.0%Unchanged
Invesco Ltd.5,972$206.3K0.00%+5,972New
MetLife Investment Management4,669$161.3K0.00%00.0%Unchanged
National Bank of Canada4,166$142.5K0.00%00.0%Unchanged
New York State Common Retirement Fund3,766$130.1K0.00%00.0%Unchanged
Mirae Asset Global ETFs Holdings Ltd.3,423$118.2K0.00%+60+1.8%Added
BNP Paribas Arbitrage, SA2,255$77.9K0.00%+743+49.1%Added
Longfellow Investment Management Co LLC2,200$76.0K0.02%+2,200New
Police & Firemen's Retirement System of New Jersey2,047$70.7K0.00%00.0%Unchanged
Rockefeller Capital Management L.P.2,000$69.1K0.00%00.0%Unchanged
MAI Capital Management1,450$50.1K0.00%+11+0.8%Added
FMR LLC838$29.0K0.00%+234+38.7%Added
GAMMA Investing LLC694$24.0K0.00%+215+44.9%Added
Legal & General Group Plc669$23.1K0.00%00.0%Unchanged
Russell Investments Group, Ltd.656$22.7K0.00%+51+8.4%Added
Ameritas Investment Partners, Inc.649$22.4K0.00%00.0%Unchanged
PenderFund Capital Management Ltd.604$20.9K0.00%+604New
Versant Capital Management, Inc548$18.9K0.00%+181+49.3%Added
California State Teachers Retirement System449$15.5K0.00%−78−14.8%Reduced
Sterling Capital Management LLC421$14.5K0.00%−83−16.5%Reduced
Tower Research Capital LLC (TRC)364$12.6K0.00%−18−4.7%Reduced
Jones Financial Companies LLLP303$10.5K0.00%00.0%Unchanged
Amalgamated Bank230$8.00K0.00%−35−13.2%Reduced
CWM, LLC190$7.00K0.00%+17+9.8%Added
EverSource Wealth Advisors, LLC194$6.70K0.00%−215−52.6%Reduced
Royal Bank of Canada209$6.00K0.00%+13+6.6%Added
Citigroup Inc165$5.70K0.00%+31+23.1%Added
Nisa Investment Advisors, LLC131$4.53K0.00%−277−67.9%Reduced
Optiver Holding B.V.112$3.87K0.00%00.0%Unchanged
SRS Capital Advisors, Inc.99$3.42K0.00%+16+19.3%Added
Signaturefd, LLC89$3.07K0.00%+89New
UBS Asset Management Americas Inc64$2.21K0.00%+64New
Essential Partners LLC26$8980.00%+2+8.3%Added
The PNC Financial Services Group, Inc.11$3800.00%00.0%Unchanged
True Wealth Design, LLC4$1390.00%00.0%Unchanged
Farther Finance Advisors, LLC4$1380.00%+3+300.0%Added
IFP Advisors, Inc2$690.00%00.0%Unchanged
Sunbelt Securities, Inc.1$350.00%00.0%Unchanged
Rothschild Investment LLC1$350.00%+1New
Covestor Ltd1$00.00%+1New
Elizabeth Park Capital Advisors, Ltd.0$00.00%−96,497−100.0%Sold out
Empowered Funds, LLC0$00.00%−20,422−100.0%Sold out
Castle Creek Capital Partners VI, LP––––Not filed