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        <issuerCik>0001669811</issuerCik>
        <issuerName>Donnelley Financial Solutions, Inc.</issuerName>
        <secFileNumber>001-37728</secFileNumber>
        <issuerAddress>
          <com:street1>35 WEST WACKER DRIVE</com:street1>
          <com:city>CHICAGO</com:city>
          <com:stateOrCountry>IL</com:stateOrCountry>
          <com:zipCode>60601</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>800-823-5304</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Johnson Eric J</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
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      <securitiesInformation>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Fidelity Brokerage Services LLC</name>
          <address>
            <com:street1>245 Summer Street</com:street1>
            <com:city>Boston   </com:city>
            <com:stateOrCountry>MA</com:stateOrCountry>
            <com:zipCode>02110</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>8823</noOfUnitsSold>
        <aggregateMarketValue>595376.04</aggregateMarketValue>
        <noOfUnitsOutstanding>29033479</noOfUnitsOutstanding>
        <approxSaleDate>08/01/2024</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Stock	</securitiesClassTitle>
        <acquiredDate>03/03/2024</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Donnelley Financial Solutions, Inc.</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>8823</amountOfSecuritiesAcquired>
        <paymentDate>03/03/2024</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
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      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
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          <name>Eric J. Johnson</name>
          <address>
            <com:street1>c/o Donnelley Financial Solutions, Inc.</com:street1>
            <com:street2>35 West Wacker Drive</com:street2>
            <com:city>Chicago</com:city>
            <com:stateOrCountry>IL</com:stateOrCountry>
            <com:zipCode>60601</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <saleDate>06/07/2024</saleDate>
        <amountOfSecuritiesSold>930</amountOfSecuritiesSold>
        <grossProceeds>54879.21</grossProceeds>
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        <sellerDetails>
          <name>Eric J. Johnson</name>
          <address>
            <com:street1>c/o Donnelley Financial Solutions, Inc.</com:street1>
            <com:street2>35 West Wacker Drive</com:street2>
            <com:city>Chicago</com:city>
            <com:stateOrCountry>IL</com:stateOrCountry>
            <com:zipCode>60601</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common Stock	</securitiesClassTitle>
        <saleDate>06/11/2024</saleDate>
        <amountOfSecuritiesSold>16757</amountOfSecuritiesSold>
        <grossProceeds>977630.19</grossProceeds>
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            <com:stateOrCountry>IL</com:stateOrCountry>
            <com:zipCode>60601</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common Stock	</securitiesClassTitle>
        <saleDate>06/12/2024</saleDate>
        <amountOfSecuritiesSold>5329</amountOfSecuritiesSold>
        <grossProceeds>315720.34</grossProceeds>
      </securitiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>08/01/2024</noticeDate>
        <signature>/s/ Myra King, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Eric J. Johnson</signature>
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text: 144
  0001847839
  XXXXXXXX
  LIVE
  0001669811
  Donnelley Financial Solutions, Inc.
  001-37728
  35 WEST WACKER DRIVE
  CHICAGO
  IL
  60601
  800-823-5304
  Johnson Eric J
  Officer
  Common Stock
  Fidelity Brokerage Services LLC
  245 Summer Street
  Boston
  MA
  02110
  8823
  595376.04
  29033479
  08/01/2024
  NYSE
  Common Stock
  03/03/2024
  Stock Award
  Donnelley Financial Solutions, Inc.
  N
  8823
  03/03/2024
  Compensation
  N
  Eric J. Johnson
  c/o Donnelley Financial Solutions, Inc.
  35 West Wacker Drive
  Chicago
  IL
  60601
  Common Stock
  06/07/2024
  930
  54879.21
  Eric J. Johnson
  c/o Donnelley Financial Solutions, Inc.
  35 West Wacker Drive
  Chicago
  IL
  60601
  Common Stock
  06/11/2024
  16757
  977630.19
  Eric J. Johnson
  c/o Donnelley Financial Solutions, Inc.
  35 West Wacker Drive
  Chicago
  IL
  60601
  Common Stock
  06/12/2024
  5329
  315720.34
  08/01/2024
  /s/ Myra King, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Eric J. Johnson