<SUBMISSION>
<ACCESSION-NUMBER>0001453727-10-000033
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20101203
<FILING-DATE>20101206
<DATE-OF-FILING-DATE-CHANGE>20101206
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>Ferguson Larry Richard
<CIK>0001367592
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>000-27188
<FILM-NUMBER>101233775
</FILING-VALUES>
<MAIL-ADDRESS>
<STREET1>111 W. OCEAN BOULEVARD
<CITY>LONG BEACH
<STATE>CA
<ZIP>90802
</MAIL-ADDRESS>
</REPORTING-OWNER>
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>ACCELRYS, INC.
<CIK>0001002388
<ASSIGNED-SIC>7372
<IRS-NUMBER>330557266
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>0331
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>10188 TELESIS COURT, SUITE 100
<CITY>SAN DIEGO
<STATE>CA
<ZIP>92121-3752
<PHONE>(858) 799-5000
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>10188 TELESIS COURT, SUITE 100
<CITY>SAN DIEGO
<STATE>CA
<ZIP>92121-3752
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>PHARMACOPEIA INC
<DATE-CHANGED>19951018
</FORMER-COMPANY>
</ISSUER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-12-03</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001002388</issuerCik>
        <issuerName>ACCELRYS, INC.</issuerName>
        <issuerTradingSymbol>ACCL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001367592</rptOwnerCik>
            <rptOwnerName>Ferguson Larry Richard</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>10188 TELESIS COURT</rptOwnerStreet1>
            <rptOwnerStreet2># 100</rptOwnerStreet2>
            <rptOwnerCity>SAN SAN DIEGO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92121</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common stock</value>
            </securityTitle>
            <transactionDate>
                <value>2010-12-03</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>9000</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>9000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The restricted stock units vest quarterly in equal installments over the three year period commencing on the date of grant.  The receipt of the vested stock units will be deferred until the earlier of the three year anniversary of the grant of the restricted stock or the cessation of services as a director to the company.</footnote>
        <footnote id="F2">Not applicable to this transaction.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Shannon Catalano, Attorney in Fact</signatureName>
        <signatureDate>2010-12-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
