MIDDLEFIELD BANC CORP

Ticker: MBCN CUSIP: 596304204 Class: Common Stock

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q4 2021

Shares 1,749 Value ($000) $44 Avg Close $22.11 Range $20.40 - $24.26

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2021	1,749	$44	$22.11	$20.40 - $24.26