<?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>0001604686</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0001596967</issuerCik>
            <issuerName>MOELIS &amp; CO.</issuerName>
            <secFileNumber>001-36418</secFileNumber>
            <issuerAddress>
                <ns2:street1>399 Park Avenue</ns2:street1>
                <ns2:street2>4th Floor</ns2:street2>
                <ns2:city>New York</ns2:city>
                <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                <ns2:zipCode>10022</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>(212) 883-3800</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>KEN D MOELIS</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>38th Floor</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>50000</noOfUnitsSold>
            <aggregateMarketValue>2078560.00</aggregateMarketValue>
            <noOfUnitsOutstanding>66664740</noOfUnitsOutstanding>
            <approxSaleDate>11/10/2023</approxSaleDate>
            <securitiesExchangeName>NYSE</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>02/22/2023</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted stock vesting under a registered plan</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>50000</amountOfSecuritiesAcquired>
            <paymentDate>02/22/2023</paymentDate>
            <natureOfPayment>Services Rendered</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>KEN D MOELIS</name>
                <address>
                    <ns2:street1>399 Park Avenue</ns2:street1>
                    <ns2:street2>4th Floor</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10022</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>11/09/2023</saleDate>
            <amountOfSecuritiesSold>23388</amountOfSecuritiesSold>
            <grossProceeds>987006.34</grossProceeds>
        </securitiesSoldInPast3Months>
        <remarks>Sales that were executed on November 10, 2023 are being reported on this Form 144 filed on November 13, 2023 given the EDGAR system was not accepting filings on November 10, 2023 in observance of the federal holiday.</remarks>
        <noticeSignature>
            <noticeDate>11/10/2023</noticeDate>
            <planAdoptionDates/>
            <signature>/s/ Ken Moelis</signature>
        </noticeSignature>
    </formData>
</edgarSubmission>
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144
0001604686
XXXXXXXX
LIVE
0001596967
MOELIS & CO.
001-36418
399 Park Avenue
4th Floor
New York
NY
10022
(212) 883-3800
KEN D MOELIS
Officer
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
38th Floor
New York
NY
10004
50000
2078560.00
66664740
11/10/2023
NYSE
Common
02/22/2023
Restricted stock vesting under a registered plan
Issuer
N
50000
02/22/2023
Services Rendered
N
KEN D MOELIS
399 Park Avenue
4th Floor
New York
NY
10022
Common
11/09/2023
23388
987006.34
Sales that were executed on November 10, 2023 are being reported on this Form 144 filed on November 13, 2023 given the EDGAR system was not accepting filings on November 10, 2023 in observance of the federal holiday.
11/10/2023
/s/ Ken Moelis