<SEC-DOCUMENT>0001193125-17-233690-index.html : 20170724
<SEC-HEADER>0001193125-17-233690.hdr.sgml : 20170724
<ACCEPTANCE-DATETIME>20170724140625
ACCESSION NUMBER:		0001193125-17-233690
CONFORMED SUBMISSION TYPE:	424B3
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20170724
DATE AS OF CHANGE:		20170724

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:		424B3
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-219313
		FILM NUMBER:		17978109

	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>424B3
<SEQUENCE>1
<FILENAME>d425561d424b3.htm
<DESCRIPTION>424B3
<TEXT>
Document 1 - file: d425561d424b3.htm

</DOCUMENT>
</SEC-DOCUMENT>