Middlefield BancMBCN
13F holders, Q4 2025 (December 31)87holders +14
15new positions
2sold out
3famous investors
$34.54avg. 13F price*
At the end of Q4 2025, 87 institutions reported holding Middlefield Banc Corp. (MBCN) in their 13F filings, up 14 from Q3 2025. 15 opened new positions and 2 sold out. The largest holders were BlackRock, Inc. ($16.0M), Vanguard Group Inc. ($14.2M) and Geode Capital Management, LLC ($5.9M). 3 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Middlefield Banc Corp.
- CUSIP
- 596304204
- Latest filing quarter
- Q1 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 15 | $9.1M |
| Exits | 2 | $3.5M |
All 13F filers, Q3 2025 → Q4 2025: 360,973 shares bought and 248,501 shares sold, net +112,472 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 87 holders
| BlackRock, Inc. | 0.00% | Reduce -1.9% | 464,415 | $16.0M |
| Vanguard Group Inc. | 0.00% | Reduce -0.7% | 411,069 | $14.2M |
| Geode Capital Management, LLC | 0.00% | Add +0.8% | 172,196 | $5.9M |
| State Street Corp. | 0.00% | Add +8.1% | 112,447 | $3.9M |
| Alliancebernstein L.P. | 0.00% | Reduce -46.8% | 105,015 | $3.6M |
| Gardner Lewis Asset Management L P | 0.82% | New | 93,365 | $3.2M |
| Dimensional Fund Advisors LP | 0.00% | Add +0.6% | 84,399 | $2.9M |
| Glazer Capital, LLC | 0.05% | New | 52,666 | $1.8M |
| Bridgeway Capital Management, LLC | 0.04% | Add +0.7% | 50,775 | $1.8M |
| Northern Trust Corp. | 0.00% | Reduce -9.5% | 50,143 | $1.7M |
| Stratos Investment Management, LLC | 0.05% | No change | 39,404 | $1.4M |
| Frazier Financial Advisors, LLC | 0.79% | Add +16710.4% | 38,664 | $1.3M |
| Clearstead Advisors, LLC | 0.02% | Reduce -11.9% | 34,684 | $1.2M |
| Huntington National Bank | 0.01% | Reduce -13.0% | 33,309 | $1.2M |
| Renaissance Technologies | 0.00% | Reduce -8.0% | 33,212 | $1.1M |
| JPMorgan Chase & Co. | 0.00% | Add +339.9% | 33,007 | $1.1M |
| Prelude Capital Management, LLC | 0.08% | New | 29,797 | $1.0M |
| Bank of New York Mellon Corp | 0.00% | Reduce -1.8% | 26,936 | $930K |
| Barclays PLC | 0.00% | Add +8.5% | 26,761 | $924K |
| Redmont Wealth Advisors LLC | 1.38% | Reduce -0.3% | 26,376 | $911K |
| Citadel Advisors | 0.00% | Reduce -9.8% | 25,714 | $888K |
| CSS LLC | 0.14% | New | 23,507 | $812K |
| Demming Financial Services Corp. | 0.60% | — | 22,953 | $793K |
| Charles Schwab Investment Management Inc. | 0.00% | No change | 21,424 | $740K |
| Morgan Stanley | 0.00% | Add +20.8% | 20,541 | $709K |
| Wells Fargo & Company | 0.00% | Add +15.7% | 19,053 | $658K |
| Riggs Asset Managment Co. Inc. | 0.13% | No change | 18,390 | $635K |
| Bank of America Corp. | 0.00% | Add +23.1% | 15,840 | $547K |
| Jane Street Group, LLC | 0.00% | Add +15.9% | 15,267 | $527K |
| Quantinno Capital Management LP | 0.00% | Add +71.0% | 15,101 | $522K |
| Millennium Management | 0.00% | New | 15,026 | $519K |
| Cetera Investment Advisers | 0.00% | Add +3.3% | 14,335 | $495K |
| Prospera Financial Services Inc | 0.01% | Add +3.8% | 13,828 | $478K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -16.2% | 13,716 | $474K |
| Oxford Asset Management LLP | 0.16% | New | 12,715 | $439K |
| Nuveen, LLC | 0.00% | No change | 12,437 | $430K |
| United Capital Financial Advisors, LLC | 0.00% | No change | 11,700 | $404K |
| Squarepoint Ops LLC | 0.00% | New | 11,281 | $390K |
| UBS Group AG | 0.00% | Reduce -12.2% | 10,953 | $378K |
| HSBC Holdings PLC | 0.00% | Add +12.4% | 10,607 | $364K |
| Rhumbline Advisers | 0.00% | Reduce -10.8% | 9,388 | $324K |
| Cerity Partners LLC | 0.00% | Add +0.6% | 9,180 | $317K |
| Keeler & Nadler Financial Planning & Wealth Management | 0.11% | No change | 9,064 | $313K |
| McDonald Partners LLC | 0.09% | New | 8,100 | $280K |
| Cambridge Investment Research Advisors, Inc. | 0.00% | Add +0.1% | 7,691 | $266K |
| Deutsche Bank AG | 0.00% | New | 7,578 | $262K |
| YHB Investment Advisors, Inc. | 0.02% | No change | 6,666 | $230K |
| Ancora Advisors LLC | 0.00% | No change | 6,157 | $213K |
| Invesco Ltd. | 0.00% | New | 5,972 | $206K |
| MetLife Investment Management, LLC | 0.00% | No change | 4,669 | $161K |
| National Bank of Canada | 0.00% | No change | 4,166 | $142K |
| New York State Common Retirement Fund | 0.00% | No change | 3,766 | $130K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +1.8% | 3,423 | $118K |
| BNP Paribas Financial Markets | 0.00% | Add +49.1% | 2,255 | $78K |
| Longfellow Investment Management Co. LLC | 0.02% | New | 2,200 | $76K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 2,047 | $71K |
| Rockefeller Capital Management L.P. | 0.00% | No change | 2,000 | $69K |
| MAI Capital Management | 0.00% | Add +0.8% | 1,450 | $50K |
| FMR LLC | 0.00% | Add +38.7% | 838 | $29K |
| GAMMA Investing LLC | 0.00% | Add +44.9% | 694 | $24K |
| Legal & General Group Plc | 0.00% | No change | 669 | $23K |
| Russell Investments Group, Ltd. | 0.00% | Add +8.4% | 656 | $23K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 649 | $22K |
| PenderFund Capital Management Ltd. | 0.01% | New | 604 | $21K |
| Versant Capital Management, Inc | 0.00% | Add +49.3% | 548 | $19K |
| California State Teachers Retirement System | 0.00% | Reduce -14.8% | 449 | $16K |
| Sterling Capital Management LLC | 0.00% | Reduce -16.5% | 421 | $15K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -4.7% | 364 | $13K |
| Jones Financial Companies LLLP | 0.00% | No change | 303 | $10K |
| Amalgamated Bank | 0.00% | Reduce -13.2% | 230 | $8K |
| Cwm, LLC | 0.00% | Add +9.8% | 190 | $7K |
| EverSource Wealth Advisors, LLC | 0.00% | Reduce -52.6% | 194 | $7K |
| Royal Bank of Canada | 0.00% | Add +6.6% | 209 | $6K |
| Citigroup Inc. | 0.00% | Add +23.1% | 165 | $6K |
| Nisa Investment Advisors, LLC | 0.00% | Reduce -67.9% | 131 | $5K |
| Optiver Holding B.V. | 0.00% | No change | 112 | $4K |
| Arax Advisory Partners | 0.00% | Add +19.3% | 99 | $3K |
| Signaturefd, LLC | 0.00% | New | 89 | $3K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | New | 64 | $2K |
| Essential Partners LLC | 0.00% | Add +8.3% | 26 | $898 |
| PNC Financial Services Group, Inc. | 0.00% | No change | 11 | $380 |
| True Wealth Design, LLC | 0.00% | No change | 4 | $139 |
| Farther Finance Advisors, LLC | 0.00% | Add +300.0% | 4 | $138 |
| IFP Advisors, Inc | 0.00% | No change | 2 | $69 |
| Rothschild Investment LLC | 0.00% | New | 1 | $35 |
| Sunbelt Securities, Inc. | 0.00% | No change | 1 | $35 |
| Covestor Ltd | 0.00% | Add +0.0% | 1 | $0 |
"% of holder's portfolio" is MBCN's weight in each manager's 13F, not the share of Middlefield Banc Corp. the manager owns.