<SEC-DOCUMENT>0001564590-20-055089-index.html : 20201124
<SEC-HEADER>0001564590-20-055089.hdr.sgml : 20201124
<ACCEPTANCE-DATETIME>20201124171114
ACCESSION NUMBER:		0001564590-20-055089
CONFORMED SUBMISSION TYPE:	S-3
PUBLIC DOCUMENT COUNT:		6
FILED AS OF DATE:		20201124
DATE AS OF CHANGE:		20201124

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MoSys, Inc.
		CENTRAL INDEX KEY:			0000890394
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				770291941
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-3
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-250936
		FILM NUMBER:		201345167

	BUSINESS ADDRESS:	
		STREET 1:		2309 BERING DRIVE
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95131
		BUSINESS PHONE:		408 418 7500

	MAIL ADDRESS:	
		STREET 1:		2309 BERING DRIVE
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95131

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MONOLITHIC SYSTEM TECHNOLOGY INC
		DATE OF NAME CHANGE:	19960613
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-3
<SEQUENCE>1
<FILENAME>mosy-s3.htm
<DESCRIPTION>S-3
<TEXT>
Document 1 - file: mosy-s3.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>mosy-ex51_37.htm
<DESCRIPTION>EX-5.1
<TEXT>
Document 2 - file: mosy-ex51_37.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>3
<FILENAME>mosy-ex231_7.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 3 - file: mosy-ex231_7.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>gmopuva5gbta000002.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: gmopuva5gbta000002.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>geko5kml4vzh000001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: geko5kml4vzh000001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>gmopuva5gbta000001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: gmopuva5gbta000001.jpg

</DOCUMENT>
</SEC-DOCUMENT>