MIDDLEFIELD BANC CORP

Ticker: MBCN CUSIP: 596304204 Class: Common Stock

Russell Investments Group, Ltd.'s Holding History (CIK: 0001692234)

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

Q4 2025

Shares 656 Value ($000) $23 Avg Close $32.90 Range $26.92 - $37.45

Q3 2025

Shares 605 Value ($000) $18 Avg Close $29.58 Range $26.13 - $33.52

Q1 2020

Shares 5,311 Value ($000) $83 Avg Close $18.83 Range $10.03 - $23.03

Q4 2019

Shares 8,484 Value ($000) $221 Avg Close $20.32 Range $18.69 - $23.92

Q3 2019

Shares 4,242 Value ($000) $199 Avg Close $18.55 Range $16.36 - $20.84

Q2 2018

Shares 223 Value ($000) $11 Avg Close $20.70 Range $19.11 - $21.85

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	656	$23	$32.90	$26.92 - $37.45
Q3 2025	605	$18	$29.58	$26.13 - $33.52
Q1 2020	5,311	$83	$18.83	$10.03 - $23.03
Q4 2019	8,484	$221	$20.32	$18.69 - $23.92
Q3 2019	4,242	$199	$18.55	$16.36 - $20.84
Q2 2018	223	$11	$20.70	$19.11 - $21.85