Middlefield BancMBCN
13F holders, Q3 2025 (September 30)73holders +5
8new positions
3sold out
2famous investors
$30.01avg. 13F price*
At the end of Q3 2025, 73 institutions reported holding Middlefield Banc Corp. (MBCN) in their 13F filings, up 5 from Q2 2025. 8 opened new positions and 3 sold out. The largest holders were Castle Creek Capital Partners VI, LP ($16.8M), BlackRock, Inc. ($14.2M) and Vanguard Group Inc. ($12.4M). 2 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Middlefield Banc Corp.
- CUSIP
- 596304204
- Latest filing quarter
- Q1 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 8 | $756K |
| Exits | 3 | $1.5M |
All 13F filers, Q2 2025 → Q3 2025: 83,011 shares bought and 86,128 shares sold, net −3,117 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 73 holders
| Castle Creek Capital Partners VI, LP | 30.11% | No change | 560,500 | $16.8M |
| BlackRock, Inc. | 0.00% | Reduce -1.3% | 473,561 | $14.2M |
| Vanguard Group Inc. | 0.00% | Reduce -0.6% | 413,738 | $12.4M |
| Alliancebernstein L.P. | 0.00% | Add +9.9% | 197,516 | $5.9M |
| Geode Capital Management, LLC | 0.00% | Reduce -0.2% | 170,738 | $5.1M |
| State Street Corp. | 0.00% | Reduce -0.2% | 104,025 | $3.1M |
| Elizabeth Park Capital Advisors, Ltd. | 2.34% | Add +11.8% | 96,497 | $2.9M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -1.4% | 83,877 | $2.5M |
| Northern Trust Corp. | 0.00% | Add +1.3% | 55,432 | $1.7M |
| Bridgeway Capital Management, LLC | 0.03% | Add +3.7% | 50,422 | $1.5M |
| Stratos Investment Management, LLC | 0.05% | No change | 39,404 | $1.2M |
| Clearstead Advisors, LLC | 0.02% | Reduce -7.5% | 39,368 | $1.2M |
| Huntington National Bank | 0.01% | No change | 38,290 | $1.1M |
| Renaissance Technologies | 0.00% | Reduce -2.4% | 36,112 | $1.1M |
| Citadel Advisors | 0.00% | Add +36.7% | 28,515 | $856K |
| Bank of New York Mellon Corp | 0.00% | Reduce -0.3% | 27,434 | $823K |
| Redmont Wealth Advisors LLC | 1.11% | Reduce -0.0% | 26,466 | $794K |
| Barclays PLC | 0.00% | Reduce -7.0% | 24,674 | $740K |
| Charles Schwab Investment Management Inc. | 0.00% | No change | 21,424 | $643K |
| Empowered Funds, LLC | 0.01% | Add +9.8% | 20,422 | $613K |
| Riggs Asset Managment Co. Inc. | 0.12% | No change | 18,390 | $552K |
| Morgan Stanley | 0.00% | Reduce -24.6% | 17,009 | $510K |
| Wells Fargo & Company | 0.00% | Add +5.3% | 16,465 | $494K |
| Goldman Sachs Group Inc. | 0.00% | Add +77.3% | 16,372 | $491K |
| Cetera Investment Advisers | 0.00% | Add +16.8% | 13,882 | $417K |
| Prospera Financial Services Inc | 0.01% | New | 13,328 | $400K |
| Jane Street Group, LLC | 0.00% | Add +63.1% | 13,171 | $395K |
| Bank of America Corp. | 0.00% | Reduce -2.5% | 12,864 | $386K |
| UBS Group AG | 0.00% | Reduce -16.9% | 12,479 | $374K |
| Nuveen, LLC | 0.00% | No change | 12,437 | $373K |
| United Capital Financial Advisors, LLC | 0.00% | Reduce -7.9% | 11,700 | $351K |
| Rhumbline Advisers | 0.00% | Reduce -0.9% | 10,523 | $316K |
| HSBC Holdings PLC | 0.00% | Reduce -7.0% | 9,435 | $283K |
| Cerity Partners LLC | 0.00% | Add +1.7% | 9,129 | $274K |
| Keeler & Nadler Financial Planning & Wealth Management | 0.10% | Reduce -3.4% | 9,064 | $272K |
| Quantinno Capital Management LP | 0.00% | New | 8,829 | $265K |
| Cambridge Investment Research Advisors, Inc. | 0.00% | Add +0.2% | 7,680 | $230K |
| JPMorgan Chase & Co. | 0.00% | Add +21.2% | 7,504 | $225K |
| YHB Investment Advisors, Inc. | 0.01% | No change | 6,666 | $200K |
| Ancora Advisors LLC | 0.00% | No change | 6,157 | $185K |
| MetLife Investment Management, LLC | 0.00% | No change | 4,669 | $140K |
| National Bank of Canada | 0.00% | No change | 4,166 | $125K |
| New York State Common Retirement Fund | 0.00% | No change | 3,766 | $113K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -15.9% | 3,363 | $101K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 2,047 | $61K |
| Rockefeller Capital Management L.P. | 0.00% | New | 2,000 | $60K |
| BNP Paribas Financial Markets | 0.00% | Add +102.1% | 1,512 | $45K |
| MAI Capital Management | 0.00% | Add +0.6% | 1,439 | $43K |
| Legal & General Group Plc | 0.00% | No change | 669 | $20K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 649 | $19K |
| Russell Investments Group, Ltd. | 0.00% | New | 605 | $18K |
| FMR LLC | 0.00% | Add +6.5% | 604 | $18K |
| California State Teachers Retirement System | 0.00% | No change | 527 | $16K |
| Sterling Capital Management LLC | 0.00% | Add +145.8% | 504 | $15K |
| GAMMA Investing LLC | 0.00% | Reduce -18.1% | 479 | $14K |
| EverSource Wealth Advisors, LLC | 0.00% | Reduce -32.2% | 409 | $12K |
| Nisa Investment Advisors, LLC | 0.00% | No change | 408 | $12K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -86.2% | 382 | $11K |
| Versant Capital Management, Inc | 0.00% | Add +2.2% | 367 | $11K |
| Jones Financial Companies LLLP | 0.00% | New | 303 | $9K |
| Amalgamated Bank | 0.00% | No change | 265 | $8K |
| Frazier Financial Advisors, LLC | 0.00% | Add +0.4% | 230 | $7K |
| Royal Bank of Canada | 0.00% | Reduce -95.9% | 196 | $6K |
| Cwm, LLC | 0.00% | Add +50.4% | 173 | $5K |
| Citigroup Inc. | 0.00% | Reduce -94.6% | 134 | $4K |
| Optiver Holding B.V. | 0.00% | New | 112 | $3K |
| Arax Advisory Partners | 0.00% | Add +277.3% | 83 | $2K |
| Essential Partners LLC | 0.00% | Add +1100.0% | 24 | $720 |
| PNC Financial Services Group, Inc. | 0.00% | No change | 11 | $330 |
| True Wealth Design, LLC | 0.00% | Add +300.0% | 4 | $121 |
| IFP Advisors, Inc | 0.00% | Add +0.0% | 2 | $60 |
| Sunbelt Securities, Inc. | 0.00% | New | 1 | $30 |
| Farther Finance Advisors, LLC | 0.00% | No change | 1 | $30 |
"% of holder's portfolio" is MBCN's weight in each manager's 13F, not the share of Middlefield Banc Corp. the manager owns.