<SEC-DOCUMENT>0001381055-18-000001-index.html : 20180221
<SEC-HEADER>0001381055-18-000001.hdr.sgml : 20180221
<ACCEPTANCE-DATETIME>20180221121228
ACCESSION NUMBER:		0001381055-18-000001
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20180221
DATE AS OF CHANGE:		20180221

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DATA I/O CORP
		CENTRAL INDEX KEY:			0000351998
		STANDARD INDUSTRIAL CLASSIFICATION:	INSTRUMENTS FOR MEAS & TESTING OF ELECTRICITY & ELEC SIGNALS [3825]
		IRS NUMBER:				910864123
		STATE OF INCORPORATION:			WA
		FISCAL YEAR END:			1211

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-33828
		FILM NUMBER:		18627592

	BUSINESS ADDRESS:	
		STREET 1:		6645 185TH AVE NE, SUITE 100
		CITY:			REDMOND
		STATE:			WA
		ZIP:			98052
		BUSINESS PHONE:		4258676922

	MAIL ADDRESS:	
		STREET 1:		6645 185TH AVE NE, SUITE 100
		CITY:			REDMOND
		STATE:			WA
		ZIP:			98052

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Penbrook Management LLC
		CENTRAL INDEX KEY:			0001381055
		IRS NUMBER:				133983976
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		880 THIRD AVENUE
		STREET 2:		16TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		212-792-6952

	MAIL ADDRESS:	
		STREET 1:		880 THIRD AVENUE
		STREET 2:		16TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>dataio17.txt
<DESCRIPTION>SC 13G/A DATA I/O DEC 31 2017
<TEXT>
Document 1 - file: dataio17.txt

</DOCUMENT>
</SEC-DOCUMENT>