    <SEC-DOCUMENT>0001193125-19-215518-index.html : 20190807
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    <ACCEPTANCE-DATETIME>20190807172656
    ACCESSION NUMBER:		0001193125-19-215518
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		6
    FILED AS OF DATE:		20190807
    DATE AS OF CHANGE:		20190807
    EFFECTIVENESS DATE:		20190807

    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:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-32929
    		FILM NUMBER:		191006548

    	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>
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