Ticker · CUSIP 596304204

MBCN

MIDDLEFIELD BANC CORP
···Share
Holders (tracked)
3
Combined shares
73,952
Combined value
$2.55M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
+1 vs previous quarter over the last 8.
332024Q12025Q4

SEC event timeline

5 events
  1. Ken Griffin (Citadel Advisors) trimmed2026-02-17
    −2,801 shares · 2025Q4
    13F
  2. Izzy Englander (Millennium Mgmt) opened position2026-02-17
    +15,026 shares · 2025Q4
    13F
  3. Renaissance Technologies trimmed2026-02-12
    −2,900 shares · 2025Q4
    13F
  4. Renaissance Technologies trimmed2025-11-13
    −900 shares · 2025Q3
    13F
  5. Ken Fisher (Fisher Asset Mgmt) exited2025-11-12
    −35,072 shares · 2025Q3
    13F

Insider activity

No insider transactions in the last 30 days.
View full insider history for MBCN →

Who moved on this name in 2025Q4

13F transactions reported for the latest quarter, grouped by direction.
New positions1
Added to0
—
Trimmed2
Exited0
—

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
3
$4.1M
2022Q2
3
$3.7M
2022Q3
3
$4K
2022Q4
3
$1.1M
2023Q1
3
$2.2M
2023Q2
2
$11.1M
2023Q3
2
$10.7M
2023Q4
2
$15.7M
2024Q1
3
$11.5M
2024Q2
3
$12.3M
2024Q3
2
$1.6M
2024Q4
2
$1.6M
2025Q1
2
$1.7M
2025Q2
3
$2.8M
2025Q3
2
$1.9M
2025Q4
3
$2.6M

Who owns MBCN

3 super-investors · 2025Q4
Tracked stake
74.0K
shares
Combined value
$3M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New1Trim2
#ManagerSharesValue
1Renaissance Technologies33.2K$1M
2Ken Griffin
Citadel Advisors
25.7K$888K
3Izzy Englander
Millennium Mgmt
15.0K$519K

Recent moves

20 transactions
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