<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:ns2="http://www.sec.gov/edgar/common">
    <headerData>
        <submissionType>144</submissionType>
        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001866450</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0001583708</issuerCik>
            <issuerName>SENTINELONE INC</issuerName>
            <secFileNumber>001-40531</secFileNumber>
            <issuerAddress>
                <ns2:street1>444 Castro Street, Suite 400</ns2:street1>
                <ns2:city>Mountain View </ns2:city>
                <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                <ns2:zipCode>94041</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>8558683733</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>RIC SMITH</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>8th Floor</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>10851</noOfUnitsSold>
            <aggregateMarketValue>209966.85</aggregateMarketValue>
            <noOfUnitsOutstanding>315457767</noOfUnitsOutstanding>
            <approxSaleDate>03/28/2025</approxSaleDate>
            <securitiesExchangeName>NYSE</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>03/05/2025</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock Units</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>10851</amountOfSecuritiesAcquired>
            <paymentDate>03/05/2025</paymentDate>
            <natureOfPayment>N/A</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for RIC SMITH</name>
                <address>
                    <ns2:street1>444 Castro Street, Suite 400</ns2:street1>
                    <ns2:city>Mountain View </ns2:city>
                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>94041</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/18/2025</saleDate>
            <amountOfSecuritiesSold>31659</amountOfSecuritiesSold>
            <grossProceeds>604732.06</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>RIC SMITH</name>
                <address>
                    <ns2:street1>444 Castro Street, Suite 400</ns2:street1>
                    <ns2:city>Mountain View </ns2:city>
                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>94041</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/06/2025</saleDate>
            <amountOfSecuritiesSold>20188</amountOfSecuritiesSold>
            <grossProceeds>394703.66</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for RIC SMITH</name>
                <address>
                    <ns2:street1>444 Castro Street, Suite 400</ns2:street1>
                    <ns2:city>Mountain View </ns2:city>
                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>94041</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>02/25/2025</saleDate>
            <amountOfSecuritiesSold>14584</amountOfSecuritiesSold>
            <grossProceeds>305607.72</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for RIC SMITH</name>
                <address>
                    <ns2:street1>444 Castro Street, Suite 400</ns2:street1>
                    <ns2:city>Mountain View </ns2:city>
                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>94041</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>01/27/2025</saleDate>
            <amountOfSecuritiesSold>14583</amountOfSecuritiesSold>
            <grossProceeds>339619.45</grossProceeds>
        </securitiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>03/28/2025</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>04/05/2024</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Ric Smith</signature>
        </noticeSignature>
    </formData>
</edgarSubmission>
[{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 6161}]
144
0001866450
XXXXXXXX
LIVE
0001583708
SENTINELONE INC
001-40531
444 Castro Street, Suite 400
Mountain View
CA
94041
8558683733
RIC SMITH
Officer
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
10851
209966.85
315457767
03/28/2025
NYSE
Common
03/05/2025
Restricted Stock Units
Issuer
N
10851
03/05/2025
N/A
N
10b5-1 Sales for RIC SMITH
444 Castro Street, Suite 400
Mountain View
CA
94041
Common
03/18/2025
31659
604732.06
RIC SMITH
444 Castro Street, Suite 400
Mountain View
CA
94041
Common
03/06/2025
20188
394703.66
10b5-1 Sales for RIC SMITH
444 Castro Street, Suite 400
Mountain View
CA
94041
Common
02/25/2025
14584
305607.72
10b5-1 Sales for RIC SMITH
444 Castro Street, Suite 400
Mountain View
CA
94041
Common
01/27/2025
14583
339619.45
03/28/2025
04/05/2024
/s/ Ric Smith