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        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001604685</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>NAVID MAHMOODZADEGAN</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>25642</noOfUnitsSold>
            <aggregateMarketValue>1417815.41</aggregateMarketValue>
            <noOfUnitsOutstanding>66664740</noOfUnitsOutstanding>
            <approxSaleDate>02/20/2024</approxSaleDate>
            <securitiesExchangeName>NYSE</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>02/23/2021</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted stock vesting under a registered plan</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>25642</amountOfSecuritiesAcquired>
            <paymentDate>02/23/2021</paymentDate>
            <natureOfPayment>Services Rendered</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>NAVID MAHMOODZADEGAN</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>02/16/2024</saleDate>
            <amountOfSecuritiesSold>20001</amountOfSecuritiesSold>
            <grossProceeds>1116453.82</grossProceeds>
        </securitiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>02/20/2024</noticeDate>
            <planAdoptionDates/>
            <signature>/s/ Navid Mahmoodzadegan</signature>
        </noticeSignature>
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144
0001604685
XXXXXXXX
LIVE
0001596967
MOELIS & CO.
001-36418
399 Park Avenue
4th Floor
New York
NY
10022
(212) 883-3800
NAVID MAHMOODZADEGAN
Officer
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
38th Floor
New York
NY
10004
25642
1417815.41
66664740
02/20/2024
NYSE
Common
02/23/2021
Restricted stock vesting under a registered plan
Issuer
N
25642
02/23/2021
Services Rendered
N
NAVID MAHMOODZADEGAN
399 Park Avenue
4th Floor
New York
NY
10022
Common
02/16/2024
20001
1116453.82
02/20/2024
/s/ Navid Mahmoodzadegan