<SEC-DOCUMENT>0001193125-19-130752-index.html : 20190501
<SEC-HEADER>0001193125-19-130752.hdr.sgml : 20190501
<ACCEPTANCE-DATETIME>20190501060556
ACCESSION NUMBER:		0001193125-19-130752
CONFORMED SUBMISSION TYPE:	S-3DPOS
PUBLIC DOCUMENT COUNT:		7
FILED AS OF DATE:		20190501
DATE AS OF CHANGE:		20190501
EFFECTIVENESS DATE:		20190501

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

	FILING VALUES:
		FORM TYPE:		S-3DPOS
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-183497
		FILM NUMBER:		19784634

	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>S-3DPOS
<SEQUENCE>1
<FILENAME>d739702ds3dpos.htm
<DESCRIPTION>S-3DPOS
<TEXT>
Document 1 - file: d739702ds3dpos.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5
<SEQUENCE>2
<FILENAME>d739702dex5.htm
<DESCRIPTION>EX-5
<TEXT>
Document 2 - file: d739702dex5.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.2
<SEQUENCE>3
<FILENAME>d739702dex232.htm
<DESCRIPTION>EX-23.2
<TEXT>
Document 3 - file: d739702dex232.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>4
<FILENAME>d739702dex991.htm
<DESCRIPTION>EX-99.1
<TEXT>
Document 4 - file: d739702dex991.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.2
<SEQUENCE>5
<FILENAME>d739702dex992.htm
<DESCRIPTION>EX-99.2
<TEXT>
Document 5 - file: d739702dex992.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g739702g27t48.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g739702g27t48.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g739702g51b64.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g739702g51b64.jpg

</DOCUMENT>
</SEC-DOCUMENT>