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            <filer>
                <filerCredentials>
                    <cik>0001885206</cik>
                    <ccc>XXXXXXXX</ccc>
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            <liveTestFlag>LIVE</liveTestFlag>



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            <issuerCik>0001824920</issuerCik>
            <issuerName>IONQ, INC.</issuerName>
            <secFileNumber>001-39694</secFileNumber>
            <issuerAddress>
                <ns2:street1>4505 Campus Drive</ns2:street1>
                <ns2:city>College Park</ns2:city>
                <ns2:stateOrCountry>MD</ns2:stateOrCountry>
                <ns2:zipCode>20740</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>(301) 298-7997</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>CHRISTOPHER MONROE</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Officer</relationshipToIssuer>
            </relationshipsToIssuer>
        </issuerInfo>
        <securitiesInformation>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <brokerOrMarketmakerDetails>
                <name>Morgan Stanley Smith Barney LLC Executive Financial Services</name>
                <address>
                    <ns2:street1>1 New York Plaza</ns2:street1>
                    <ns2:street2>38th Floor</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>200000</noOfUnitsSold>
            <aggregateMarketValue>2150980.00</aggregateMarketValue>
            <noOfUnitsOutstanding>201028320</noOfUnitsOutstanding>
            <approxSaleDate>06/01/2023</approxSaleDate>
            <securitiesExchangeName>NYSE</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>09/29/2015</acquiredDate>
            <natureOfAcquisitionTransaction>Founder Stock</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>200000</amountOfSecuritiesAcquired>
            <paymentDate>09/29/2015</paymentDate>
            <natureOfPayment>Cash</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>Christopher Monroe</name>
                <address>
                    <ns2:street1>4505 Campus Drive</ns2:street1>
                    <ns2:city>College Park</ns2:city>
                    <ns2:stateOrCountry>MD</ns2:stateOrCountry>
                    <ns2:zipCode>20740</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>05/25/2023</saleDate>
            <amountOfSecuritiesSold>2680</amountOfSecuritiesSold>
            <grossProceeds>28193.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>06/01/2023</noticeDate>
            <planAdoptionDates/>
            <signature>/s/ Christopher Monroe</signature>
        </noticeSignature>
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144
0001885206
XXXXXXXX
LIVE
0001824920
IONQ, INC.
001-39694
4505 Campus Drive
College Park
MD
20740
(301) 298-7997
CHRISTOPHER MONROE
Officer
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
38th Floor
New York
NY
10004
200000
2150980.00
201028320
06/01/2023
NYSE
Common
09/29/2015
Founder Stock
Issuer
N
200000
09/29/2015
Cash
N
Christopher Monroe
4505 Campus Drive
College Park
MD
20740
Common
05/25/2023
2680
28193.00
06/01/2023
/s/ Christopher Monroe