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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, Q3 2021

Institutional positions in Middlefield Banc Corp as of Sep 30, 2021. 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
36
−7 vs. Q2 2021
Shares held
1.80M
−139.5K (−7.2%) vs. Q2 2021
Total value
$42.9M
−$2.78M (−6.1%) vs. Q2 2021
New holders
0
5 more added
Sold out
7
19 more reduced

Compare with Q2 2021: 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 holdersQ3 2021: 36 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 heldQ3 2021: $42.9M
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, Q3 2021

Shares, value and share of portfolio for each institution holding Middlefield Banc Corp; share changes are against Q2 2021.

Institutions holding MBCN in Q3 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Ancora Advisors, LLC417,374$9.95M0.26%−2000.0%Reduced
Vanguard Group Inc250,119$5.96M0.00%00.0%Unchanged
Carnegie Capital Asset Management, LLC156,234$3.75M0.14%−14,200−8.3%Reduced
Alliancebernstein L.P.96,552$2.30M0.00%+57,387+146.5%Added
Dimensional Fund Advisors LP93,053$2.24M0.00%+1,675+1.8%Added
Renaissance Technologies LLC80,725$1.92M0.00%−7,287−8.3%Reduced
Siena Capital Partners GP, LLC80,110$1.91M0.60%−50,000−38.4%Reduced
Clearstead Advisors, LLC76,732$1.83M0.14%−6,170−7.4%Reduced
EJF Capital LLC76,657$1.83M0.16%−20,000−20.7%Reduced
Geode Capital Management, LLC55,034$1.32M0.00%−468−0.8%Reduced
Millennium Management LLC53,890$1.30M0.00%−41,742−43.6%Reduced
Bridgeway Capital Management, LLC47,300$1.14M0.02%00.0%Unchanged
Lineweaver Wealth Advisors, LLC39,402$938.0K0.29%−30,000−43.2%Reduced
United Capital Financial Advisers, LLC30,000$715.0K0.00%00.0%Unchanged
John G Ullman & Associates Inc28,220$672.0K0.09%−200−0.7%Reduced
Kennedy Capital Management, Inc.26,882$640.0K0.01%00.0%Unchanged
Ergoteles LLC26,313$633.0K0.02%+413+1.6%Added
Huntington National Bank20,751$494.0K0.00%00.0%Unchanged
Susquehanna Fundamental Investments, LLC20,343$490.0K0.01%00.0%Unchanged
Fourthstone LLC20,107$479.0K0.19%−1,880−8.6%Reduced
Riggs Asset Managment Co. Inc.18,830$449.0K0.14%00.0%Unchanged
BlackRock Inc.15,868$378.0K0.00%−2,530−13.8%Reduced
State Street Corp14,577$351.0K0.00%+1,900+15.0%Added
Bank of New York Mellon Corp13,463$321.0K0.00%−100−0.7%Reduced
Northern Trust Corp11,858$283.0K0.00%−728−5.8%Reduced
YHB Investment Advisors, Inc.8,952$213.0K0.02%00.0%Unchanged
Wells Fargo & Company8,245$197.0K0.00%−89−1.1%Reduced
UBS Group AG2,977$71.0K0.00%+529+21.6%Added
Advisor Group Holdings, Inc.1,400$33.0K0.00%00.0%Unchanged
Morgan Stanley1,231$30.0K0.00%−208−14.5%Reduced
Optiver Holding B.V.749$18.0K0.00%00.0%Unchanged
Barclays PLC699$17.0K0.00%−855−55.0%Reduced
Bank of America Corp615$15.0K0.00%−1,122−64.6%Reduced
O'Shaughnessy Asset Management, LLC189$5.00K0.00%00.0%Unchanged
BNP Paribas Arbitrage, SA33$7940.00%00.0%Unchanged
Royal Bank of Canada9$00.00%−2,028−99.6%Reduced
Cutter & CO Brokerage, Inc.0$00.00%−8,878−100.0%Sold out
HRT Financial LP0$00.00%−8,500−100.0%Sold out
JPMorgan Chase & Co0$00.00%−1,318−100.0%Sold out
The PNC Financial Services Group, Inc.0$00.00%−1,000−100.0%Sold out
Acadian Asset Management LLC0$00.00%−941−100.0%Sold out
Tower Research Capital LLC (TRC)0$00.00%−864−100.0%Sold out
New York State Common Retirement Fund0$00.00%−52−100.0%Sold out