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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 N8qK7lFNS0iRy4kQmPJv0+VixaF2ls6taJT4KuRXHYpQ3Tt8VP0+esS8X1NwPAa4
 oqObAbp135BACwiSLwtIgw==

<SEC-DOCUMENT>9999999995-10-003235.txt : 20101115
<SEC-HEADER>9999999995-10-003235.hdr.sgml : 20101115
<ACCEPTANCE-DATETIME>20101115001516
ACCESSION NUMBER:		9999999995-10-003235
CONFORMED SUBMISSION TYPE:	EFFECT
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20101112
DATE AS OF CHANGE:		20101115
EFFECTIVENESS DATE:		20101112

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:			CA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		EFFECT
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-170327
		FILM NUMBER:		101188979

	BUSINESS ADDRESS:	
		STREET 1:		3301 OLCOTT STREET
		CITY:			SANTA CLARA
		STATE:			CA
		ZIP:			95054
		BUSINESS PHONE:		408 418 7500

	MAIL ADDRESS:	
		STREET 1:		3301 OLCOTT STREET
		CITY:			SANTA CLARA
		STATE:			CA
		ZIP:			95054

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MONOLITHIC SYSTEM TECHNOLOGY INC
		DATE OF NAME CHANGE:	19960613
</SEC-HEADER>
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<TYPE>EFFECT
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
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    <schemaVersion>X0101</schemaVersion>

    <submissionType>EFFECT</submissionType>

    <act>33</act>

    <testOrLive>LIVE</testOrLive>

    <effectiveData>
        <finalEffectivenessDispDate>2010-11-12</finalEffectivenessDispDate>
        <finalEffectivenessDispTime>17:30:00</finalEffectivenessDispTime>
        <form>S-3</form>
        <filer>
            <cik>0000890394</cik>
            <entityName>MoSys, Inc.</entityName>
            <fileNumber>333-170327</fileNumber>
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