<?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>0001304655</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0001459200</issuerCik>
            <issuerName>ALARM.COM HOLDINGS, INC.</issuerName>
            <secFileNumber>001-37461</secFileNumber>
            <issuerAddress>
                <ns2:street1>8281 Greensboro Drive</ns2:street1>
                <ns2:street2>Suite 100</ns2:street2>
                <ns2:city>Tysons</ns2:city>
                <ns2:stateOrCountry>VA</ns2:stateOrCountry>
                <ns2:zipCode>22102</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>(877) 389-4033</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>SIEGBERT VALENZUELA</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>1552</noOfUnitsSold>
            <aggregateMarketValue>92091.33</aggregateMarketValue>
            <noOfUnitsOutstanding>49742009</noOfUnitsOutstanding>
            <approxSaleDate>05/16/2025</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>05/15/2025</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>1552</amountOfSecuritiesAcquired>
            <paymentDate>05/15/2025</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>SIEGBERT VALENZUELA</name>
                <address>
                    <ns2:street1>8281 Greensboro Drive</ns2:street1>
                    <ns2:street2>Suite 100</ns2:street2>
                    <ns2:city>Tysons</ns2:city>
                    <ns2:stateOrCountry>VA</ns2:stateOrCountry>
                    <ns2:zipCode>22102</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>05/13/2025</saleDate>
            <amountOfSecuritiesSold>1723</amountOfSecuritiesSold>
            <grossProceeds>103380.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>SIEGBERT VALENZUELA</name>
                <address>
                    <ns2:street1>8281 Greensboro Drive</ns2:street1>
                    <ns2:street2>Suite 100</ns2:street2>
                    <ns2:city>Tysons</ns2:city>
                    <ns2:stateOrCountry>VA</ns2:stateOrCountry>
                    <ns2:zipCode>22102</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>04/02/2025</saleDate>
            <amountOfSecuritiesSold>777</amountOfSecuritiesSold>
            <grossProceeds>43117.52</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>SIEGBERT VALENZUELA</name>
                <address>
                    <ns2:street1>8281 Greensboro Drive</ns2:street1>
                    <ns2:street2>Suite 100</ns2:street2>
                    <ns2:city>Tysons</ns2:city>
                    <ns2:stateOrCountry>VA</ns2:stateOrCountry>
                    <ns2:zipCode>22102</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/12/2025</saleDate>
            <amountOfSecuritiesSold>3436</amountOfSecuritiesSold>
            <grossProceeds>200834.20</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>SIEGBERT VALENZUELA</name>
                <address>
                    <ns2:street1>8281 Greensboro Drive</ns2:street1>
                    <ns2:street2>Suite 100</ns2:street2>
                    <ns2:city>Tysons</ns2:city>
                    <ns2:stateOrCountry>VA</ns2:stateOrCountry>
                    <ns2:zipCode>22102</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>03/06/2025</saleDate>
            <amountOfSecuritiesSold>1564</amountOfSecuritiesSold>
            <grossProceeds>93174.99</grossProceeds>
        </securitiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>05/16/2025</noticeDate>
            <planAdoptionDates/>
            <signature>/s/ Siegbert Valenzuela</signature>
        </noticeSignature>
    </formData>
</edgarSubmission>
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144
0001304655
XXXXXXXX
LIVE
0001459200
ALARM.COM HOLDINGS, INC.
001-37461
8281 Greensboro Drive
Suite 100
Tysons
VA
22102
(877) 389-4033
SIEGBERT VALENZUELA
Officer
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
1552
92091.33
49742009
05/16/2025
NASDAQ
Common
05/15/2025
Restricted Stock
Issuer
N
1552
05/15/2025
Not Applicable
N
SIEGBERT VALENZUELA
8281 Greensboro Drive
Suite 100
Tysons
VA
22102
Common
05/13/2025
1723
103380.00
SIEGBERT VALENZUELA
8281 Greensboro Drive
Suite 100
Tysons
VA
22102
Common
04/02/2025
777
43117.52
SIEGBERT VALENZUELA
8281 Greensboro Drive
Suite 100
Tysons
VA
22102
Common
03/12/2025
3436
200834.20
SIEGBERT VALENZUELA
8281 Greensboro Drive
Suite 100
Tysons
VA
22102
Common
03/06/2025
1564
93174.99
05/16/2025
/s/ Siegbert Valenzuela