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            <issuerName>HEIDRICK &amp; STRUGGLES INTERNATIONAL INC.</issuerName>
            <secFileNumber>000-25837</secFileNumber>
            <issuerAddress>
                <ns2:street1>233 S. WACKER DR. STE 4200</ns2:street1>
                <ns2:city>CHICAGO</ns2:city>
                <ns2:stateOrCountry>IL</ns2:stateOrCountry>
                <ns2:zipCode>60606</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>312 496-1200</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>THE KRISHNAN RAJAGOPALAN REV TRUST</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Officer</relationshipToIssuer>
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            <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>
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            <noOfUnitsSold>800</noOfUnitsSold>
            <aggregateMarketValue>27254.64</aggregateMarketValue>
            <noOfUnitsOutstanding>20122216</noOfUnitsOutstanding>
            <approxSaleDate>03/04/2024</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
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            <acquiredDate>03/09/2017</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted stock vesting under a registered plan</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>800</amountOfSecuritiesAcquired>
            <paymentDate>03/09/2017</paymentDate>
            <natureOfPayment>Services Rendered</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>03/04/2024</noticeDate>
            <planAdoptionDates/>
            <signature>/s/ Krishnan Rajagopalan, Trustee</signature>
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144
0001629768
XXXXXXXX
LIVE
0001066605
HEIDRICK & STRUGGLES INTERNATIONAL INC.
000-25837
233 S. WACKER DR. STE 4200
CHICAGO
IL
60606
312 496-1200
THE KRISHNAN RAJAGOPALAN REV TRUST
Officer
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
800
27254.64
20122216
03/04/2024
NASDAQ
Common
03/09/2017
Restricted stock vesting under a registered plan
Issuer
N
800
03/09/2017
Services Rendered
Y
03/04/2024
/s/ Krishnan Rajagopalan, Trustee