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        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001885265</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
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    <formData>
        <issuerInfo>
            <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>3012987997</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>JUNGSANG KIM</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Director</relationshipToIssuer>
                <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>8th Floor</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>716268</noOfUnitsSold>
            <aggregateMarketValue>5515263.60</aggregateMarketValue>
            <noOfUnitsOutstanding>211454927</noOfUnitsOutstanding>
            <approxSaleDate>06/17/2024</approxSaleDate>
            <securitiesExchangeName>NYSE</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>06/17/2024</acquiredDate>
            <natureOfAcquisitionTransaction>Exercise of Stock Options</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>200000</amountOfSecuritiesAcquired>
            <paymentDate>06/17/2024</paymentDate>
            <natureOfPayment>Cash</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>09/30/2021</acquiredDate>
            <natureOfAcquisitionTransaction>de-SPAC merger</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>516268</amountOfSecuritiesAcquired>
            <paymentDate>09/30/2021</paymentDate>
            <natureOfPayment>N/A</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>06/17/2024</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>03/04/2024</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Jungsang Kim</signature>
        </noticeSignature>
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144
0001885265
XXXXXXXX
LIVE
0001824920
IONQ INC
001-39694
4505 Campus Drive
College Park
MD
20740
3012987997
JUNGSANG KIM
Director
Officer
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
716268
5515263.60
211454927
06/17/2024
NYSE
Common
06/17/2024
Exercise of Stock Options
Issuer
N
200000
06/17/2024
Cash
Common
09/30/2021
de-SPAC merger
Issuer
N
516268
09/30/2021
N/A
Y
06/17/2024
03/04/2024
/s/ Jungsang Kim