SEC 13F Intelligence

MBCNMIDDLEFIELD BANC CORP

CUSIP 596304204 · Yahoo Finance ↗ · Google Finance ↗

Middlefield Banc Corp (MBCN) has 4 institutional holders in Filings Flow’s 13F database, together reporting 33.3K shares worth $1M as of Q1 2026. The largest reported holders are Castle Creek Capital Partners Vi, LP, Blackrock, Inc., and Vanguard Group Inc.

Institutional Holders
4
Q1 2026
Reported Value
$1M
Ticker
MBCN
Quarters Tracked
9

Ownership Trend

Institutional holders
Q4 ’18: 31Q4 ’18Q1 ’19: 34Q2 ’19: 30Q2 ’19Q3 ’19: 27Q2 ’21: 34Q2 ’21Q4 ’21: 32Q4 ’22: 30Q4 ’22Q4 ’25: 83Q1 ’26: 4Q1 ’26filingsflow.com
Total reported value
Q4 ’18: $28MQ4 ’18Q1 ’19: $208MQ2 ’19: $198MQ2 ’19Q3 ’19: $40MQ2 ’21: $37MQ2 ’21Q4 ’21: $34MQ4 ’22: $14MQ4 ’22Q4 ’25: $77MQ1 ’26: $1MQ1 ’26filingsflow.com

Holders

Mixed quarters
Manager% of PortfolioValueSharesQuarter
Elizabeth Park Capital Advisors, Ltd.$130M AUM2.34%$3M96.5KQ3 2025OLDER
OXFORD ASSET MANAGEMENT LLP$268M AUM1.57%$439,17612.7KQ1 2026
GARDNER LEWIS ASSET MANAGEMENT L P$462M AUM0.82%$3M93.4KQ4 2025OLDER
Frazier Financial Advisors, LLC$181M AUM0.79%$1M38.7KQ4 2025OLDER
Riggs Asset Managment Co. Inc.$486M AUM0.13%$635,19118.4KQ4 2025OLDER
KEELER & NADLER FINANCIAL PLANNING & WEALTH MANAGEMENT$295M AUM0.11%$313,0719.1KQ4 2025OLDER
MCDONALD PARTNERS LLC$424M AUM0.09%$279,7748.1KQ4 2025OLDER
PRELUDE CAPITAL MANAGEMENT, LLC$1.3B AUM0.08%$1M29.8KQ4 2025OLDER
Stratos Investment Management, LLC$2.5B AUM0.05%$1M39.4KQ4 2025OLDER
BRIDGEWAY CAPITAL MANAGEMENT, LLC$5.0B AUM0.04%$2M50.8KQ4 2025OLDER
CSS LLC/IL$2.1B AUM0.04%$811,93223.5KQ4 2025OLDER
LONGFELLOW INVESTMENT MANAGEMENT CO LLC$480M AUM0.02%$75,9882.2KQ4 2025OLDER
YHB Investment Advisors, Inc.$1.4B AUM0.02%$230,2446.7KQ4 2025OLDER
Clearstead Advisors, LLC$10.9B AUM0.02%$1M34.7KQ4 2025OLDER
Prospera Financial Services Inc$6.2B AUM0.01%$477,61813.8KQ4 2025OLDER
HUNTINGTON NATIONAL BANK$18.1B AUM0.01%$1M33.3KQ4 2025OLDER
Empowered Funds, LLC$15.7B AUM0.01%$612,86420.4KQ3 2025OLDER
Ancora Advisors LLC$4.7B AUM0.00%$212,6636.2KQ4 2025OLDER
PenderFund Capital Management Ltd.$639M AUM0.00%$20,862604Q4 2025OLDER
UNITED CAPITAL FINANCIAL ADVISORS, LLC$16.3B AUM0.00%$404,11811.7KQ4 2025OLDER
Versant Capital Management, Inc$1.1B AUM0.00%$18,928548Q4 2025OLDER
RENAISSANCE TECHNOLOGIES LLC$63.9B AUM0.00%$1M33.2KQ4 2025OLDER
GAMMA Investing LLC$2.7B AUM0.00%$23,971694Q4 2025OLDER
ALLIANCEBERNSTEIN L.P.$308.8B AUM0.00%$4M105.0KQ4 2025OLDER
Quantinno Capital Management LP$59.9B AUM0.00%$521,58915.1KQ4 2025OLDER
MetLife Investment Management, LLC$19.6B AUM0.00%$161,2674.7KQ4 2025OLDER
Ameritas Investment Partners, Inc.$3.3B AUM0.00%$22,416649Q4 2025OLDER
DIMENSIONAL FUND ADVISORS LP$481.4B AUM0.00%$3M84.4KQ4 2025OLDER
Police & Firemen's Retirement System of New Jersey$11.7B AUM0.00%$70,7032.0KQ4 2025OLDER
Cetera Investment Advisers$94.0B AUM0.00%$495,14014.3KQ4 2025OLDER
Cerity Partners LLC$70.8B AUM0.00%$317,0779.2KQ4 2025OLDER
Fisher Asset Management, LLC$294.9B AUM0.00%$1M35.1KQ2 2025OLDER
Squarepoint Ops LLC$85.1B AUM0.00%$389,64611.3KQ4 2025OLDER
GEODE CAPITAL MANAGEMENT, LLC$1.61T AUM0.00%$6M172.2KQ4 2025OLDER
Tower Research Capital LLC (TRC)$3.8B AUM0.00%$12,573364Q4 2025OLDER
MAI Capital Management$17.7B AUM0.00%$50,0701.4KQ4 2025OLDER
BlackRock, Inc.$5.72T AUM0.00%$16M464.4KQ4 2025OLDER
RHUMBLINE ADVISERS$116.9B AUM0.00%$324,2569.4KQ4 2025OLDER
EverSource Wealth Advisors, LLC$3.3B AUM0.00%$6,701194Q4 2025OLDER
Sterling Capital Management LLC$5.3B AUM0.00%$14,541421Q4 2025OLDER
NORTHERN TRUST CORP$756.6B AUM0.00%$2M50.1KQ4 2025OLDER
MILLENNIUM MANAGEMENT LLC$240.3B AUM0.00%$518,99815.0KQ4 2025OLDER
VANGUARD GROUP INC$6.90T AUM0.00%$14M411.1KQ4 2025OLDER
BARCLAYS PLC$416.3B AUM0.00%$798,45726.5KQ4 2025OLDER
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.$73.7B AUM0.00%$118,2303.4KQ4 2025OLDER
NEW YORK STATE COMMON RETIREMENT FUND$71.6B AUM0.00%$130,0783.8KQ4 2025OLDER
Bank of New York Mellon Corp$543.9B AUM0.00%$930,35426.9KQ4 2025OLDER
HSBC HOLDINGS PLC$191.6B AUM0.00%$283,0509.4KQ3 2025OLDER
CITADEL ADVISORS LLC$618.5B AUM0.00%$888,16225.7KQ4 2025OLDER
STATE STREET CORP$2.90T AUM0.00%$4M112.4KQ4 2025OLDER
NATIONAL BANK OF CANADA /FI/$111.5B AUM0.00%$142,4774.2KQ4 2025OLDER
Rockefeller Capital Management L.P.$56.4B AUM0.00%$69,0802.0KQ4 2025OLDER
WELLS FARGO & COMPANY/MN$530.3B AUM0.00%$658,09119.1KQ4 2025OLDER
CHARLES SCHWAB INVESTMENT MANAGEMENT INC$654.5B AUM0.00%$739,98521.4KQ4 2025OLDER
Nuveen, LLC$369.3B AUM0.00%$429,57412.4KQ4 2025OLDER
Arax Advisory Partners$3.5B AUM0.00%$3,42099Q4 2025OLDER
DEUTSCHE BANK AG\$302.7B AUM0.00%$261,7447.6KQ4 2025OLDER
JANE STREET GROUP, LLC$777.2B AUM0.00%$527,32215.3KQ4 2025OLDER
JPMORGAN CHASE & CO$1.56T AUM0.00%$1M33.0KQ4 2025OLDER
UBS Group AG$666.3B AUM0.00%$378,31611.0KQ4 2025OLDER
GOLDMAN SACHS GROUP INC$870.9B AUM0.00%$473,75113.7KQ4 2025OLDER
SIGNATUREFD, LLC$6.5B AUM0.00%$3,07489Q4 2025OLDER
SUSQUEHANNA INTERNATIONAL GROUP, LLP$893.3B AUM0.00%$317,02810.5KQ2 2025OLDER
MORGAN STANLEY$1.67T AUM0.00%$709,48620.5KQ1 2026
True Wealth Design, LLC$360M AUM0.00%$1394Q4 2025OLDER
BANK OF AMERICA CORP /DE/$1.37T AUM0.00%$547,11315.8KQ4 2025OLDER
BNP PARIBAS FINANCIAL MARKETS$205.8B AUM0.00%$77,8882.3KQ4 2025OLDER
Invesco Ltd.$653.3B AUM0.00%$206,2736.0KQ4 2025OLDER
Russell Investments Group, Ltd.$93.1B AUM0.00%$22,658656Q4 2025OLDER
Essential Partners LLC$250M AUM0.00%$602Q1 2026
CWM, LLC$38.1B AUM0.00%$7190Q4 2025OLDER
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM$94.5B AUM0.00%$15,508449Q4 2025OLDER
NISA INVESTMENT ADVISORS, LLC$27.0B AUM0.00%$4,525131Q4 2025OLDER
JONES FINANCIAL COMPANIES LLLP$208.1B AUM0.00%$10,466303Q4 2025OLDER
Legal & General Group Plc$432.4B AUM0.00%$23,107669Q4 2025OLDER
CITIGROUP INC$234.5B AUM0.00%$5,699165Q4 2025OLDER
Sunbelt Securities, Inc.$1.6B AUM0.00%$351Q4 2025OLDER
ROTHSCHILD INVESTMENT LLC$1.9B AUM0.00%$351Q4 2025OLDER
Farther Finance Advisors, LLC$10.6B AUM0.00%$1384Q4 2025OLDER
FMR LLC$1.90T AUM0.00%$28,951838Q4 2025OLDER
Optiver Holding B.V.$289.5B AUM0.00%$3,868112Q4 2025OLDER
IFP Advisors, Inc$4.8B AUM0.00%$672Q1 2026
ROYAL BANK OF CANADA$570.1B AUM0.00%$6,000209Q4 2025OLDER
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC$481.0B AUM0.00%$2,21164Q4 2025OLDER
PNC FINANCIAL SERVICES GROUP, INC.$173.2B AUM0.00%$38011Q4 2025OLDER

Holdings are reported up to 45 days after quarter end. Share counts are as filed and not adjusted for stock splits.