MIDDLEFIELD BANC CORP - MBCN
Detailed investor-level table based on 13F positions.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| VANGUARD GROUP INC | History | No change | 411,069 | 14,198 | 0.0% | 0.0% | 1 | 0 | 0.0% | Q4 2025 | Jan 29, 2026 |
| REDMONT WEALTH ADVISORS LLC | History | No change | 26,376 | 911 | 1.38% | 1.38% | 2 | 0 | 0.0% | Q4 2025 | Feb 06, 2026 |
| BlackRock, Inc. | History | Closed out | 0 | 0 | — | 0.0% | — | -464,415 | -100.0% | Q1 2026 | May 13, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -172,196 | -100.0% | Q1 2026 | May 15, 2026 |
| STATE STREET CORP | History | Closed out | 0 | 0 | — | 0.0% | — | -112,447 | -100.0% | Q1 2026 | May 15, 2026 |
| ALLIANCEBERNSTEIN L.P. | History | Closed out | 0 | 0 | — | 0.0% | — | -105,015 | -100.0% | Q1 2026 | May 15, 2026 |
| GARDNER LEWIS ASSET MANAGEMENT L P | History | Closed out | 0 | 0 | — | 0.82% | — | -93,365 | -100.0% | Q1 2026 | May 08, 2026 |
| DIMENSIONAL FUND ADVISORS LP | History | Closed out | 0 | 0 | — | 0.0% | — | -84,399 | -100.0% | Q1 2026 | May 07, 2026 |
| GLAZER CAPITAL, LLC | History | Closed out | 0 | 0 | — | 0.05% | — | -52,666 | -100.0% | Q1 2026 | May 14, 2026 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | History | Closed out | 0 | 0 | — | 0.04% | — | -50,775 | -100.0% | Q1 2026 | May 15, 2026 |
| NORTHERN TRUST CORP | History | Closed out | 0 | 0 | — | 0.0% | — | -50,143 | -100.0% | Q1 2026 | May 14, 2026 |
| Stratos Investment Management, LLC | History | Closed out | 0 | 0 | — | 0.05% | — | -39,404 | -100.0% | Q1 2026 | Apr 28, 2026 |
| Frazier Financial Advisors, LLC | History | Closed out | 0 | 0 | — | 0.79% | — | -38,664 | -100.0% | Q1 2026 | May 05, 2026 |
| Clearstead Advisors, LLC | History | Closed out | 0 | 0 | — | 0.02% | — | -34,684 | -100.0% | Q1 2026 | May 06, 2026 |
| HUNTINGTON NATIONAL BANK | History | Closed out | 0 | 0 | — | 0.01% | — | -33,309 | -100.0% | Q1 2026 | May 15, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -33,212 | -100.0% | Q1 2026 | May 14, 2026 |
| JPMORGAN CHASE & CO | History | Closed out | 0 | 0 | — | 0.0% | — | -33,007 | -100.0% | Q1 2026 | May 13, 2026 |
| PRELUDE CAPITAL MANAGEMENT, LLC | History | Closed out | 0 | 0 | — | 0.08% | — | -29,797 | -100.0% | Q1 2026 | May 15, 2026 |
| Bank of New York Mellon Corp | History | Closed out | 0 | 0 | — | 0.0% | — | -26,936 | -100.0% | Q1 2026 | May 05, 2026 |
| BARCLAYS PLC | History | Closed out | 0 | 0 | — | 0.0% | — | -26,761 | -100.0% | Q1 2026 | May 14, 2026 |
| CITADEL ADVISORS LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -25,714 | -100.0% | Q1 2026 | May 15, 2026 |
| CSS LLC/IL | History | Closed out | 0 | 0 | — | 0.04% | — | -23,507 | -100.0% | Q1 2026 | May 15, 2026 |
| DEMMING FINANCIAL SERVICES CORP /ADV | History | Closed out | 0 | 0 | — | 0.6% | — | -22,953 | -100.0% | Q1 2026 | Apr 17, 2026 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | History | Closed out | 0 | 0 | — | 0.0% | — | -21,424 | -100.0% | Q1 2026 | May 15, 2026 |
| MORGAN STANLEY | History | Closed out | 0 | 0 | — | 0.0% | — | -20,541 | -100.0% | Q1 2026 | May 15, 2026 |
| WELLS FARGO & COMPANY/MN | History | Closed out | 0 | 0 | — | 0.0% | — | -19,053 | -100.0% | Q1 2026 | Jul 08, 2026 |
| Riggs Asset Managment Co. Inc. | History | Closed out | 0 | 0 | — | 0.13% | — | -18,390 | -100.0% | Q1 2026 | May 11, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Closed out | 0 | 0 | — | 0.0% | — | -15,840 | -100.0% | Q1 2026 | May 15, 2026 |
| JANE STREET GROUP, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -15,267 | -100.0% | Q1 2026 | May 12, 2026 |
| Quantinno Capital Management LP | History | Closed out | 0 | 0 | — | 0.0% | — | -15,101 | -100.0% | Q1 2026 | May 15, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -15,026 | -100.0% | Q1 2026 | May 15, 2026 |
| Cetera Investment Advisers | History | Closed out | 0 | 0 | — | 0.0% | — | -14,335 | -100.0% | Q1 2026 | May 13, 2026 |
| Prospera Financial Services Inc | History | Closed out | 0 | 0 | — | 0.01% | — | -13,828 | -100.0% | Q1 2026 | Apr 14, 2026 |
| GOLDMAN SACHS GROUP INC | History | Closed out | 0 | 0 | — | 0.0% | — | -13,716 | -100.0% | Q1 2026 | May 15, 2026 |
| Nuveen, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -12,437 | -100.0% | Q1 2026 | Apr 30, 2026 |
| UNITED CAPITAL FINANCIAL ADVISORS, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -11,700 | -100.0% | Q1 2026 | May 15, 2026 |
| Squarepoint Ops LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -11,281 | -100.0% | Q1 2026 | May 15, 2026 |
| UBS Group AG | History | Closed out | 0 | 0 | — | 0.0% | — | -10,953 | -100.0% | Q1 2026 | May 05, 2026 |
| HSBC HOLDINGS PLC | History | Closed out | 0 | 0 | — | 0.0% | — | -10,607 | -100.0% | Q1 2026 | Apr 30, 2026 |
| RHUMBLINE ADVISERS | History | Closed out | 0 | 0 | — | 0.0% | — | -9,388 | -100.0% | Q1 2026 | May 12, 2026 |
| Cerity Partners LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -9,180 | -100.0% | Q1 2026 | May 15, 2026 |
| KEELER & NADLER FINANCIAL PLANNING & WEALTH MANAGEMENT | History | Closed out | 0 | 0 | — | 0.11% | — | -9,064 | -100.0% | Q1 2026 | May 04, 2026 |
| MCDONALD PARTNERS LLC | History | Closed out | 0 | 0 | — | 0.09% | — | -8,100 | -100.0% | Q1 2026 | May 15, 2026 |
| Cambridge Investment Research Advisors, Inc. | History | Closed out | 0 | 0 | — | 0.0% | — | -7,691 | -100.0% | Q1 2026 | Apr 30, 2026 |
| DEUTSCHE BANK AG\ | History | Closed out | 0 | 0 | — | 0.0% | — | -7,578 | -100.0% | Q1 2026 | May 06, 2026 |
| YHB Investment Advisors, Inc. | History | Closed out | 0 | 0 | — | 0.02% | — | -6,666 | -100.0% | Q1 2026 | Apr 10, 2026 |
| Ancora Advisors LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -6,157 | -100.0% | Q1 2026 | May 15, 2026 |
| Invesco Ltd. | History | Closed out | 0 | 0 | — | 0.0% | — | -5,972 | -100.0% | Q1 2026 | May 12, 2026 |
| MetLife Investment Management, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -4,669 | -100.0% | Q1 2026 | May 14, 2026 |
| NATIONAL BANK OF CANADA /FI/ | History | Closed out | 0 | 0 | — | 0.0% | — | -4,166 | -100.0% | Q1 2026 | May 14, 2026 |
| NEW YORK STATE COMMON RETIREMENT FUND | History | Closed out | 0 | 0 | — | 0.0% | — | -3,766 | -100.0% | Q1 2026 | May 06, 2026 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | History | Closed out | 0 | 0 | — | 0.0% | — | -3,423 | -100.0% | Q1 2026 | May 15, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | Closed out | 0 | 0 | — | 0.0% | — | -2,255 | -100.0% | Q1 2026 | May 12, 2026 |
| LONGFELLOW INVESTMENT MANAGEMENT CO LLC | History | Closed out | 0 | 0 | — | 0.02% | — | -2,200 | -100.0% | Q1 2026 | May 12, 2026 |
| Police & Firemen's Retirement System of New Jersey | History | Closed out | 0 | 0 | — | 0.0% | — | -2,047 | -100.0% | Q1 2026 | Apr 29, 2026 |
| Rockefeller Capital Management L.P. | History | Closed out | 0 | 0 | — | 0.0% | — | -2,000 | -100.0% | Q1 2026 | May 14, 2026 |
| MAI Capital Management | History | Closed out | 0 | 0 | — | 0.0% | — | -1,450 | -100.0% | Q1 2026 | May 15, 2026 |
| FMR LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -838 | -100.0% | Q1 2026 | May 15, 2026 |
| GAMMA Investing LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -694 | -100.0% | Q1 2026 | Apr 06, 2026 |
| Legal & General Group Plc | History | Closed out | 0 | 0 | — | 0.0% | — | -669 | -100.0% | Q1 2026 | May 08, 2026 |
| Russell Investments Group, Ltd. | History | Closed out | 0 | 0 | — | 0.0% | — | -656 | -100.0% | Q1 2026 | May 08, 2026 |
| Ameritas Investment Partners, Inc. | History | Closed out | 0 | 0 | — | 0.0% | — | -649 | -100.0% | Q1 2026 | May 13, 2026 |
| PenderFund Capital Management Ltd. | History | Closed out | 0 | 0 | — | 0.0% | — | -604 | -100.0% | Q1 2026 | May 15, 2026 |
| Versant Capital Management, Inc | History | Closed out | 0 | 0 | — | 0.0% | — | -548 | -100.0% | Q1 2026 | Apr 06, 2026 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | History | Closed out | 0 | 0 | — | 0.0% | — | -449 | -100.0% | Q1 2026 | May 15, 2026 |
| Sterling Capital Management LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -421 | -100.0% | Q1 2026 | Apr 22, 2026 |
| Tower Research Capital LLC (TRC) | History | Closed out | 0 | 0 | — | 0.0% | — | -364 | -100.0% | Q1 2026 | May 15, 2026 |
| JONES FINANCIAL COMPANIES LLLP | History | Closed out | 0 | 0 | — | 0.0% | — | -303 | -100.0% | Q1 2026 | May 15, 2026 |
| AMALGAMATED BANK | History | Closed out | 0 | 0 | — | 0.0% | — | -230 | -100.0% | Q1 2026 | May 08, 2026 |
| ROYAL BANK OF CANADA | History | Closed out | 0 | 0 | — | 0.0% | — | -209 | -100.0% | Q1 2026 | May 15, 2026 |
| EverSource Wealth Advisors, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -194 | -100.0% | Q1 2026 | May 15, 2026 |
| CWM, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -190 | -100.0% | Q1 2026 | May 14, 2026 |
| CITIGROUP INC | History | Closed out | 0 | 0 | — | 0.0% | — | -165 | -100.0% | Q1 2026 | May 11, 2026 |
| NISA INVESTMENT ADVISORS, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -131 | -100.0% | Q1 2026 | Apr 30, 2026 |
| Optiver Holding B.V. | History | Closed out | 0 | 0 | — | 0.0% | — | -112 | -100.0% | Q1 2026 | Jun 02, 2026 |
| Arax Advisory Partners | History | Closed out | 0 | 0 | — | 0.0% | — | -99 | -100.0% | Q1 2026 | May 13, 2026 |
| SIGNATUREFD, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -89 | -100.0% | Q1 2026 | Apr 07, 2026 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -64 | -100.0% | Q1 2026 | May 13, 2026 |
| Essential Partners LLC | History | Closed out | 0 | 0 | — | — | — | -26 | -100.0% | Q1 2026 | May 21, 2026 |
| PNC FINANCIAL SERVICES GROUP, INC. | History | Closed out | 0 | 0 | — | — | — | -11 | -100.0% | Q1 2026 | May 08, 2026 |
| True Wealth Design, LLC | History | Closed out | 0 | 0 | — | — | — | -4 | -100.0% | Q1 2026 | Apr 13, 2026 |
| Farther Finance Advisors, LLC | History | Closed out | 0 | 0 | — | — | — | -4 | -100.0% | Q1 2026 | Apr 07, 2026 |
| ROTHSCHILD INVESTMENT LLC | History | Closed out | 0 | 0 | — | — | — | -1 | -100.0% | Q1 2026 | May 07, 2026 |
| Sunbelt Securities, Inc. | History | Closed out | 0 | 0 | — | — | — | -1 | -100.0% | Q1 2026 | May 15, 2026 |
| Covestor Ltd | History | Closed out | 0 | 0 | — | — | — | -1 | -100.0% | Q1 2026 | May 05, 2026 |
| IFP Advisors, Inc | History | No change | 2 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | Apr 13, 2026 |