<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:ns2="http://www.sec.gov/edgar/common">
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        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001838061</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



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    <formData>
        <issuerInfo>
            <issuerCik>0001789972</issuerCik>
            <issuerName>CULLINAN THERAPEUTICS, INC.</issuerName>
            <secFileNumber>001-39856</secFileNumber>
            <issuerAddress>
                <ns2:street1>One Main Street, Suite 1350</ns2:street1>
                <ns2:city>Cambridge</ns2:city>
                <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                <ns2:zipCode>02142</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>6174104650</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>JENNIFER MICHAELSON &amp; MARC D MICHAELSON</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>5606</noOfUnitsSold>
            <aggregateMarketValue>94068.68</aggregateMarketValue>
            <noOfUnitsOutstanding>57634234</noOfUnitsOutstanding>
            <approxSaleDate>07/05/2024</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>12/01/2018</acquiredDate>
            <natureOfAcquisitionTransaction>RSA &amp; RSU</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>5606</amountOfSecuritiesAcquired>
            <paymentDate>12/01/2018</paymentDate>
            <natureOfPayment>N/A</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for JENNIFER MICHAELSON &amp;MARC D MICHAELSON JT TEN</name>
                <address>
                    <ns2:street1>One Main Street, Suite 1350</ns2:street1>
                    <ns2:city>Cambridge</ns2:city>
                    <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                    <ns2:zipCode>02142</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>COMMON</securitiesClassTitle>
            <saleDate>05/07/2024</saleDate>
            <amountOfSecuritiesSold>5606</amountOfSecuritiesSold>
            <grossProceeds>168491.69</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for JENNIFER MICHAELSON &amp;MARC D MICHAELSON JT TEN</name>
                <address>
                    <ns2:street1>One Main Street, Suite 1350</ns2:street1>
                    <ns2:city>Cambridge</ns2:city>
                    <ns2:stateOrCountry>MA</ns2:stateOrCountry>
                    <ns2:zipCode>02142</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>COMMON</securitiesClassTitle>
            <saleDate>05/06/2024</saleDate>
            <amountOfSecuritiesSold>58000</amountOfSecuritiesSold>
            <grossProceeds>1628136.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <remarks>The securities to be sold were acquired upon the vesting of restricted stock units during the period of 12/01/2018 through 06/17/2023.
</remarks>
        <noticeSignature>
            <noticeDate>07/05/2024</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>01/05/2024</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Jennifer Michaelson</signature>
        </noticeSignature>
    </formData>
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144
0001838061
XXXXXXXX
LIVE
0001789972
CULLINAN THERAPEUTICS, INC.
001-39856
One Main Street, Suite 1350
Cambridge
MA
02142
6174104650
JENNIFER MICHAELSON & MARC D MICHAELSON
Officer
COMMON
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
5606
94068.68
57634234
07/05/2024
NASDAQ
Common
12/01/2018
RSA & RSU
Issuer
N
5606
12/01/2018
N/A
N
10b5-1 Sales for JENNIFER MICHAELSON &MARC D MICHAELSON JT TEN
One Main Street, Suite 1350
Cambridge
MA
02142
COMMON
05/07/2024
5606
168491.69
10b5-1 Sales for JENNIFER MICHAELSON &MARC D MICHAELSON JT TEN
One Main Street, Suite 1350
Cambridge
MA
02142
COMMON
05/06/2024
58000
1628136.00
The securities to be sold were acquired upon the vesting of restricted stock units during the period of 12/01/2018 through 06/17/2023.
07/05/2024
01/05/2024
/s/ Jennifer Michaelson