MIDDLEFIELD BANC CORP

Ticker: MBCN CUSIP: 596304204 Class: Common Stock

NISA INVESTMENT ADVISORS, LLC's Holding History (CIK: 0000937615)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025
Shares 131 Value ($000) $5 Avg Close $32.90 Range $26.92 - $37.45
Q3 2025
Shares 408 Value ($000) $12 Avg Close $29.58 Range $26.13 - $33.52
Q2 2025
Shares 408 Value ($000) $12 Avg Close $27.24 Range $22.16 - $30.21
Q1 2025
Shares 400 Value ($000) $11 Avg Close $25.31 Range $23.25 - $29.04
Q4 2024
Shares 412 Value ($000) $12 Avg Close $28.61 Range $25.65 - $32.65
Q3 2024
Shares 412 Value ($000) $12 Avg Close $24.58 Range $20.54 - $28.56
Q2 2024
Shares 400 Value ($000) $10 Avg Close $21.13 Range $19.65 - $23.36