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            <filer>
                <filerCredentials>
                    <cik>0001850152</cik>
                    <ccc>XXXXXXXX</ccc>
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            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



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        <issuerInfo>
            <issuerCik>0001388658</issuerCik>
            <issuerName>IRHYTHM TECHNOLOGIES, INC.</issuerName>
            <secFileNumber>001-37918</secFileNumber>
            <issuerAddress>
                <ns2:street1>699 8th Street</ns2:street1>
                <ns2:street2>Suite 600</ns2:street2>
                <ns2:city>San Francisco</ns2:city>
                <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                <ns2:zipCode>94103</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>(415) 632-5700</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>CHAD PATTERSON</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>936</noOfUnitsSold>
            <aggregateMarketValue>140400.00</aggregateMarketValue>
            <noOfUnitsOutstanding>31925267</noOfUnitsOutstanding>
            <approxSaleDate>06/23/2025</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>03/01/2025</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>936</amountOfSecuritiesAcquired>
            <paymentDate>03/01/2025</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>CHAD PATTERSON</name>
                <address>
                    <ns2:street1>699 8th Street</ns2:street1>
                    <ns2:street2>Suite 600</ns2:street2>
                    <ns2:city>San Francisco</ns2:city>
                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>94103</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>06/10/2025</saleDate>
            <amountOfSecuritiesSold>363</amountOfSecuritiesSold>
            <grossProceeds>54450.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>CHAD PATTERSON</name>
                <address>
                    <ns2:street1>699 8th Street</ns2:street1>
                    <ns2:street2>Suite 600</ns2:street2>
                    <ns2:city>San Francisco</ns2:city>
                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>94103</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>05/02/2025</saleDate>
            <amountOfSecuritiesSold>1300</amountOfSecuritiesSold>
            <grossProceeds>162500.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>CHAD PATTERSON</name>
                <address>
                    <ns2:street1>699 8th Street</ns2:street1>
                    <ns2:street2>Suite 600</ns2:street2>
                    <ns2:city>San Francisco</ns2:city>
                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>94103</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>05/02/2025</saleDate>
            <amountOfSecuritiesSold>1592</amountOfSecuritiesSold>
            <grossProceeds>190642.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>CHAD PATTERSON</name>
                <address>
                    <ns2:street1>699 8th Street</ns2:street1>
                    <ns2:street2>Suite 600</ns2:street2>
                    <ns2:city>San Francisco</ns2:city>
                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>94103</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>05/02/2025</saleDate>
            <amountOfSecuritiesSold>3367</amountOfSecuritiesSold>
            <grossProceeds>403198.25</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>CHAD PATTERSON</name>
                <address>
                    <ns2:street1>699 8th Street</ns2:street1>
                    <ns2:street2>Suite 600</ns2:street2>
                    <ns2:city>San Francisco</ns2:city>
                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>94103</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>05/02/2025</saleDate>
            <amountOfSecuritiesSold>2251</amountOfSecuritiesSold>
            <grossProceeds>269557.25</grossProceeds>
        </securitiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>06/23/2025</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>11/25/2024</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Chad Michael Patterson</signature>
        </noticeSignature>
    </formData>
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144
0001850152
XXXXXXXX
LIVE
0001388658
IRHYTHM TECHNOLOGIES, INC.
001-37918
699 8th Street
Suite 600
San Francisco
CA
94103
(415) 632-5700
CHAD PATTERSON
Officer
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
936
140400.00
31925267
06/23/2025
NASDAQ
Common
03/01/2025
Restricted Stock
ISSUER
N
936
03/01/2025
Not Applicable
N
CHAD PATTERSON
699 8th Street
Suite 600
San Francisco
CA
94103
Common
06/10/2025
363
54450.00
CHAD PATTERSON
699 8th Street
Suite 600
San Francisco
CA
94103
Common
05/02/2025
1300
162500.00
CHAD PATTERSON
699 8th Street
Suite 600
San Francisco
CA
94103
Common
05/02/2025
1592
190642.00
CHAD PATTERSON
699 8th Street
Suite 600
San Francisco
CA
94103
Common
05/02/2025
3367
403198.25
CHAD PATTERSON
699 8th Street
Suite 600
San Francisco
CA
94103
Common
05/02/2025
2251
269557.25
06/23/2025
11/25/2024
/s/ Chad Michael Patterson