<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0203</schemaVersion>

    <documentType>3/A</documentType>

    <periodOfReport>2010-03-30</periodOfReport>

    <dateOfOriginalSubmission>2010-03-30</dateOfOriginalSubmission>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001167294</issuerCik>
        <issuerName>MERU NETWORKS INC</issuerName>
        <issuerTradingSymbol>MERU</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001488239</rptOwnerCik>
            <rptOwnerName>D. E. Shaw Composite Side Pocket Series 5, L.L.C.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>120 WEST FORTY-FIFTH STREET, 39TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10036</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>See Footnotes 1, 2, and 3.</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001427640</rptOwnerCik>
            <rptOwnerName>Laminar Direct Capital, L.L.C.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>120 WEST FORTY-FIFTH STREET</rptOwnerStreet1>
            <rptOwnerStreet2>39TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10036</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>See Footnotes 1, 2, and 3.</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001009268</rptOwnerCik>
            <rptOwnerName>D. E. SHAW &amp; CO, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>120 WEST FORTY-FIFTH STREET</rptOwnerStreet1>
            <rptOwnerStreet2>39TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10036</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>See Footnotes 1, 2, and 3.</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001277502</rptOwnerCik>
            <rptOwnerName>D. E. SHAW &amp; CO, L.L.C.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>120 WEST FORTY-FIFTH STREET</rptOwnerStreet1>
            <rptOwnerStreet2>39TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10036</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>See Footnotes 1, 2, and 3.</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001023870</rptOwnerCik>
            <rptOwnerName>SHAW DAVID E</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>120 WEST FORTY-FIFTH STREET</rptOwnerStreet1>
            <rptOwnerStreet2>39TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10036</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>See Footnotes 1, 2, and 3.</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Class A Common Stock Warrant</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>9.7818</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2009-03-12</value>
            </exerciseDate>
            <expirationDate>
                <value>2014-03-12</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>$0.0005 Par Value Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>176976</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Class B Common Stock Warrant</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>11.7382</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2009-03-12</value>
            </exerciseDate>
            <expirationDate>
                <value>2014-03-12</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>$0.0005 Par Value Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>176976</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Series D Convertible Preferred Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F7"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F5"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F6"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>$0.0005 Par Value Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>8351754</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Series E Convertible Preferred Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F8"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F5"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F6"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>$0.0005 Par Value Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>4601404</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Preferred Stock Warrant</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.7023</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F5"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F9"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Series E Convertible Preferred Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>876262</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The Class A Common Stock Warrants, Class B Common Stock Warrants, Series E Convertible Preferred Stock, and Preferred Stock Warrants of the Issuer to which this form relates are held directly by Laminar Direct Capital, L.L.C. (&quot;LDC&quot;).</footnote>
        <footnote id="F2">The Series D Convertible Preferred Stock of the Issuer to which this form relates are held directly by D. E. Shaw Composite Side Pocket 5, L.L.C. (&quot;Composite&quot;).</footnote>
        <footnote id="F3">D. E. Shaw &amp; Co., L.P. (&quot;DESCO LP&quot;), as investment adviser to Composite and investment adviser and managing member of LDC; D. E. Shaw &amp; Co., L.L.C. (&quot;DESCO LLC&quot;), as manager of Composite; and Mr. David E. Shaw (&quot;David E. Shaw&quot;) (as president and sole shareholder of D. E. Shaw &amp; Co., Inc., which is the general partner of DESCO LP, and as president and sole shareholder of D. E. Shaw &amp; Co. II, Inc., which is the managing member of DESCO LLC) may be deemed to be the beneficial owners of all, or certain of, the securities reported in this Form 3 for the purposes of Rule 16a-1(a) of the Securities Exchange Act of 1934. (Cont'd in FN 4)</footnote>
        <footnote id="F4">In accordance with instruction 5(b)(iv), the entire number of shares of Common Stock of the Issuer that may be deemed to be beneficially owned by DESCO LP or DESCO LLC is reported herein.  Each of DESCO LP, DESCO LLC, and David E. Shaw disclaims any beneficial ownership of any security listed in this Form 3, except to the extent of any pecuniary interest therein.</footnote>
        <footnote id="F5">Immediately.</footnote>
        <footnote id="F6">N/A</footnote>
        <footnote id="F7">Each outstanding share of the Issuer's Series D Convertible Preferred Stock will automatically convert into approximately 0.11399 shares of the Issuer's Common Stock upon the closing of the initial public offering of the Issuer's Common Stock.</footnote>
        <footnote id="F8">Each outstanding share of the Issuer's Series E Convertible Preferred Stock will automatically convert into approximately 0.08974 shares of the Issuer's Common Stock upon the closing of the initial public offering of the Issuer's Common Stock.</footnote>
        <footnote id="F9">The Preferred Stock Warrants will expire upon the closing of the initial public offering of the Issuer's Common Stock.  To the extent the warrants are exercised prior to such time, each outstanding share of the Issuer's Series E Convertible Preferred Stock will automatically convert into approximately 0.08974 shares of the Issuer's Common Stock upon the closing of the initial public offering of the Issuer's Common Stock.</footnote>
    </footnotes>

    <remarks>This Form 3A is being filed to restate the securities of the Issuer beneficially owned by the reporting persons and discloses all such securities beneficially owned by the reporting persons as of March 30, 2010.  The original Form 3 reported the reporting persons' post-closing beneficial ownership.</remarks>

    <ownerSignature>
        <signatureName>D. E. Shaw Composite Side Pocket Series 5, L.L.C. By: /s/Rochelle Elias, Authorized Signatory</signatureName>
        <signatureDate>2010-04-01</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Laminar Direct Capital, L.L.C. By: /s/Rochelle Elias, Authorized Signatory</signatureName>
        <signatureDate>2010-04-01</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>D. E. Shaw &amp; Co., L.P. By: /s/Rochelle Elias, Chief Compliance Officer</signatureName>
        <signatureDate>2010-04-01</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>D. E. Shaw &amp; Co., L.L.C. By: /s/Rochelle Elias, Authorized Signatory</signatureName>
        <signatureDate>2010-04-01</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>David E. Shaw By: /s/Rochelle Elias, Attorney-in-Fact for David E. Shaw</signatureName>
        <signatureDate>2010-04-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
