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

    <schemaVersion>X0206</schemaVersion>

    <documentType>3/A</documentType>

    <periodOfReport>2014-12-11</periodOfReport>

    <dateOfOriginalSubmission>2014-06-11</dateOfOriginalSubmission>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001470099</issuerCik>
        <issuerName>MOBILEIRON, INC.</issuerName>
        <issuerTradingSymbol>MOBL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001576746</rptOwnerCik>
            <rptOwnerName>NAHM TAE HEA</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2440 SAND HILL ROAD, STE. 301</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>MENLO PARK</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94025</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Series D Preferred Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>See Footnotes (2), (3) and (4)</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>701839</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Partnership - See Footnotes</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Series E Preferred Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F5"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F5"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F5"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>See Footnotes (2), (3) and (4)</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>68299</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Partnership - See Footnotes</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The Series D Preferred Stock shall automatically convert into Common Stock on a one for one basis immediately prior to the completion of the Issuer's initial public offering of Common Stock and has no expiration date.</footnote>
        <footnote id="F2">Storm Venture Associates III, L.L.C. (SVA III LLC) is the general partner of SVF III, SMI (as defined below) and SVAF III and the managing member of SVPF III. Ryan Floyd, M. Alex Mendez, Tae Hea Nahm and Sanjay Subhedar as the managing members of SVA III LLC share voting and investment power with respect to the shares held by SVF III, SMI, SVAF III and SVPF III. Storm Venture Associates IV, L.L.C. (SVA IV LLC) is the general partner of SVF IV. Ryan Floyd, M. Alex Mendez, Tae Hea Nahm and Sanjay Subhedar as the managing members of SVA IV LLC share voting and investment power with respect to the shares held by SVF IV.</footnote>
        <footnote id="F3">SVA III LLC, Ryan Floyd, M. Alex Mendez, Tae Hea Nahm and Sanjay Subhedar have no pecuniary interest in the shares held by SMI on the date of the original Form 3 filing or as of today.  Reporting Persons erroneously claimed beneficial ownership of the shares held by SMI in the original Form 3 filing, to which this filing is an amendment.</footnote>
        <footnote id="F4">The shares are held directly by Storm MI Investments, L.P. (&quot;SMI&quot;).  SVA III LLC, Ryan Floyd, M. Alex Mendez, Tae Hea Nahm and Sanjay Subhedar have no pecuniary interest in, and therefore disclaim beneficial ownership of the shares held by SMI, as stated in this Form 3 Amendment.</footnote>
        <footnote id="F5">The Series E Preferred Stock shall automatically convert into Common Stock on a one for one basis immediately prior to the completion of the Issuer's initial public offering of Common Stock and has no expiration date.</footnote>
    </footnotes>

    <remarks>THIS IS AN AMENDMENT TO FORM 3, ORIGINALLY FILED ON 6/11/2014.  THIS AMENDMENT TO FORM 3 AMENDS AND RESTATES THE ORIGINAL FORM 3 IN ITS ENTIRETY AS TO THE MATTERS INDICATED ABOVE.  DUE TO THE ERRONEOUS INCLUSION OF THE SHARES HELD BY STORM MI INVESTMENTS, L.P. AS SET FORTH ABOVE, THE FORM 4 FILED BY THIS GROUP ON JUNE 17, 2014 CONTAINS THE SAME ERROR.</remarks>

    <ownerSignature>
        <signatureName>See attached signature page.</signatureName>
        <signatureDate>2014-12-12</signatureDate>
    </ownerSignature>
</ownershipDocument>
