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

    <schemaVersion>X0206</schemaVersion>

    <documentType>3/A</documentType>

    <periodOfReport>2016-10-01</periodOfReport>

    <dateOfOriginalSubmission>2016-10-03</dateOfOriginalSubmission>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001669811</issuerCik>
        <issuerName>Donnelley Financial Solutions, Inc.</issuerName>
        <issuerTradingSymbol>DFIN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000924060</rptOwnerCik>
            <rptOwnerName>CRANDALL RICHARD L</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O DONNELLEY FINANCIAL SOLUTIONS, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>35 WEST WACKER DRIVE</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60601</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>48327</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Reporting Person is filing an amendment to his Form 3, which was filed on October 3, 2016, in order to update the number of securities beneficially owned as of the date of the event requiring the statement.  This amount includes 644 shares of common stock of Donnelley Financial Solutions, Inc. (&quot;DFS&quot;) and 47,683 restricted stock units, which are reflected as beneficially owned and reported as shares of DFS common stock.  The number of restricted stock units was determined pursuant to an equitable adjustment in the Separation and Distribution Agreement, dated as of September 14, 2016, by and among R. R. Donnelley &amp; Sons Company (&quot;RRD&quot;), LSC Communications, Inc. (&quot;LSC&quot;) and DFS, and gives effect to the distribution by RRD of 80.75% of the common stock of each LSC and DFS, which occurred on October 1, 2016.</footnote>
    </footnotes>

    <remarks>Richard L. Crandall became a director of Donnelley Financial Solutions, Inc. on October 1, 2016.</remarks>

    <ownerSignature>
        <signatureName>/s/ Jennifer B. Reiners, Jennifer B. Reiners, Attorney-In-Fact for Richard L. Crandall</signatureName>
        <signatureDate>2016-10-18</signatureDate>
    </ownerSignature>
</ownershipDocument>
