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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2014-12-15</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000738214</issuerCik>
        <issuerName>AEMETIS, INC</issuerName>
        <issuerTradingSymbol>AMTX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001420115</rptOwnerCik>
            <rptOwnerName>Sorgenti Harold</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>20400 STEVENS CREEK BLVD.</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>CUPERTINO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>95014</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Non-qualified stock option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>4.66</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2014-12-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>8000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>37280</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2014-12-15</value>
            </exerciseDate>
            <expirationDate>
                <value>2019-12-15</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>8000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>8000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Grant of nonstatutory stock option under the Aemetis, Inc. Amended and Restated 2007 Stock Plan to purchase 8,000 shares of the Company's common stock (&quot;Option Shares&quot;) at an exercise price of $4.66 per share, with 4,000 of the Option Shares vesting immediately, and the remaining Option Shares vesting every three (3) months from date of grant, and subject to the terms of the Stock Option Agreement between Reporting Person and the Company.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Harold Sorgenti by Todd Waltz, attorney-in-fact</signatureName>
        <signatureDate>2014-12-16</signatureDate>
    </ownerSignature>
</ownershipDocument>
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X0306
4
2014-12-15
0
0000738214
AEMETIS, INC
AMTX
0001420115
Sorgenti Harold
20400 STEVENS CREEK BLVD.
CUPERTINO
CA
95014
1
0
0
0
Non-qualified stock option (right to buy)
4.66
2014-12-15
4
A
0
8000
37280
A
2014-12-15
2019-12-15
Common Stock
8000
8000
D
Grant of nonstatutory stock option under the Aemetis, Inc. Amended and Restated 2007 Stock Plan to purchase 8,000 shares of the Company's common stock ("Option Shares") at an exercise price of $4.66 per share, with 4,000 of the Option Shares vesting immediately, and the remaining Option Shares vesting every three (3) months from date of grant, and subject to the terms of the Stock Option Agreement between Reporting Person and the Company.
/s/ Harold Sorgenti by Todd Waltz, attorney-in-fact
2014-12-16