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                    <cik>0001870272</cik>
                    <ccc>XXXXXXXX</ccc>
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            <liveTestFlag>LIVE</liveTestFlag>



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        <issuerInfo>
            <issuerCik>0001562088</issuerCik>
            <issuerName>Duolingo, Inc.</issuerName>
            <secFileNumber>001-40653</secFileNumber>
            <issuerAddress>
                <ns2:street1>5900 Penn Avenue </ns2:street1>
                <ns2:city>Pittsburgh</ns2:city>
                <ns2:stateOrCountry>PA</ns2:stateOrCountry>
                <ns2:zipCode>15206</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>4125676602</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>SEVERIN HACKER</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Director</relationshipToIssuer>
                <relationshipToIssuer>Officer</relationshipToIssuer>
                <relationshipToIssuer>10% Stockholder</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>70000</noOfUnitsSold>
            <aggregateMarketValue>33511100.00</aggregateMarketValue>
            <noOfUnitsOutstanding>39260633</noOfUnitsOutstanding>
            <approxSaleDate>06/20/2025</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>06/20/2025</acquiredDate>
            <natureOfAcquisitionTransaction>Exercise of Stock Options</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>70000</amountOfSecuritiesAcquired>
            <paymentDate>06/20/2025</paymentDate>
            <natureOfPayment>Cash</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for SEVERIN HACKER</name>
                <address>
                    <ns2:street1>5900 Penn Avenue </ns2:street1>
                    <ns2:city>Pittsburgh</ns2:city>
                    <ns2:stateOrCountry>PA</ns2:stateOrCountry>
                    <ns2:zipCode>15206</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>06/05/2025</saleDate>
            <amountOfSecuritiesSold>10000</amountOfSecuritiesSold>
            <grossProceeds>5251039.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for SEVERIN HACKER</name>
                <address>
                    <ns2:street1>5900 Penn Avenue </ns2:street1>
                    <ns2:city>Pittsburgh</ns2:city>
                    <ns2:stateOrCountry>PA</ns2:stateOrCountry>
                    <ns2:zipCode>15206</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>05/19/2025</saleDate>
            <amountOfSecuritiesSold>10000</amountOfSecuritiesSold>
            <grossProceeds>5247039.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for SEVERIN HACKER</name>
                <address>
                    <ns2:street1>5900 Penn Avenue </ns2:street1>
                    <ns2:city>Pittsburgh</ns2:city>
                    <ns2:stateOrCountry>PA</ns2:stateOrCountry>
                    <ns2:zipCode>15206</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>05/05/2025</saleDate>
            <amountOfSecuritiesSold>10000</amountOfSecuritiesSold>
            <grossProceeds>4959527.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for SEVERIN HACKER</name>
                <address>
                    <ns2:street1>5900 Penn Avenue </ns2:street1>
                    <ns2:city>Pittsburgh</ns2:city>
                    <ns2:stateOrCountry>PA</ns2:stateOrCountry>
                    <ns2:zipCode>15206</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>04/21/2025</saleDate>
            <amountOfSecuritiesSold>10000</amountOfSecuritiesSold>
            <grossProceeds>3143601.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for SEVERIN HACKER</name>
                <address>
                    <ns2:street1>5900 Penn Avenue </ns2:street1>
                    <ns2:city>Pittsburgh</ns2:city>
                    <ns2:stateOrCountry>PA</ns2:stateOrCountry>
                    <ns2:zipCode>15206</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>04/07/2025</saleDate>
            <amountOfSecuritiesSold>10000</amountOfSecuritiesSold>
            <grossProceeds>2924302.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <remarks>The securities to be sold were and will be received upon the exercise of stock options over the next three months. The dates of acquisition and payment were and will be the dates of exercise/sale.&#13;
</remarks>
        <noticeSignature>
            <noticeDate>06/20/2025</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>09/11/2024</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Severin Hacker</signature>
        </noticeSignature>
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144
0001870272
XXXXXXXX
LIVE
0001562088
Duolingo, Inc.
001-40653
5900 Penn Avenue
Pittsburgh
PA
15206
4125676602
SEVERIN HACKER
Director
Officer
10% Stockholder
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
70000
33511100.00
39260633
06/20/2025
NASDAQ
Common
06/20/2025
Exercise of Stock Options
Issuer
N
70000
06/20/2025
Cash
N
10b5-1 Sales for SEVERIN HACKER
5900 Penn Avenue
Pittsburgh
PA
15206
Common
06/05/2025
10000
5251039.00
10b5-1 Sales for SEVERIN HACKER
5900 Penn Avenue
Pittsburgh
PA
15206
Common
05/19/2025
10000
5247039.00
10b5-1 Sales for SEVERIN HACKER
5900 Penn Avenue
Pittsburgh
PA
15206
Common
05/05/2025
10000
4959527.00
10b5-1 Sales for SEVERIN HACKER
5900 Penn Avenue
Pittsburgh
PA
15206
Common
04/21/2025
10000
3143601.00
10b5-1 Sales for SEVERIN HACKER
5900 Penn Avenue
Pittsburgh
PA
15206
Common
04/07/2025
10000
2924302.00
The securities to be sold were and will be received upon the exercise of stock options over the next three months. The dates of acquisition and payment were and will be the dates of exercise/sale.
06/20/2025
09/11/2024
/s/ Severin Hacker