<SEC-DOCUMENT>0001193125-23-048773-index.html : 20230224
<SEC-HEADER>0001193125-23-048773.hdr.sgml : 20230224
<ACCEPTANCE-DATETIME>20230224161807
ACCESSION NUMBER:		0001193125-23-048773
CONFORMED SUBMISSION TYPE:	PRE 14A
PUBLIC DOCUMENT COUNT:		15
CONFORMED PERIOD OF REPORT:	20230510
FILED AS OF DATE:		20230224
DATE AS OF CHANGE:		20230224

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MIDDLEFIELD BANC CORP
		CENTRAL INDEX KEY:			0000836147
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				341585111
		STATE OF INCORPORATION:			OH
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		PRE 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36613
		FILM NUMBER:		23667553

	BUSINESS ADDRESS:	
		STREET 1:		15985 E HIGH ST
		STREET 2:		P O BOX 35
		CITY:			MIDDLEFILED
		STATE:			OH
		ZIP:			44062-9263
		BUSINESS PHONE:		4406321666

	MAIL ADDRESS:	
		STREET 1:		15985 EAST HIGH STREET
		STREET 2:		P O BOX 35
		CITY:			MIDDLEFIELD
		STATE:			OH
		ZIP:			44062-9263
</SEC-HEADER>
<DOCUMENT>
<TYPE>PRE 14A
<SEQUENCE>1
<FILENAME>d291116dpre14a.htm
<DESCRIPTION>PRE 14A
<TEXT>
Document 1 - file: d291116dpre14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g291116dsp002a.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g291116dsp002a.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g291116dsp002b.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g291116dsp002b.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g291116dsp002c.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g291116dsp002c.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g291116dsp002d.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g291116dsp002d.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g291116dsp002e.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g291116dsp002e.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g291116dsp002f.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g291116dsp002f.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>g291116dsp002h.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: g291116dsp002h.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>g291116dsp002i.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: g291116dsp002i.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>g291116dsp004a.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: g291116dsp004a.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>g291116dsp004b.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 11 - file: g291116dsp004b.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>g291116g0223030535546.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 12 - file: g291116g0223030535546.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>g291116g03p00.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 13 - file: g291116g03p00.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>g291116g03p10.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 14 - file: g291116g03p10.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>15
<FILENAME>g291116g38r13.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 15 - file: g291116g38r13.jpg

</DOCUMENT>
</SEC-DOCUMENT>