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    <headerData>
        <submissionType>144</submissionType>
        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001674282</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0000899460</issuerCik>
            <issuerName>MANNKIND CORPORATION</issuerName>
            <secFileNumber>000-50865</secFileNumber>
            <issuerAddress>
                <ns2:street1>1 Casper Street</ns2:street1>
                <ns2:city>Danbury</ns2:city>
                <ns2:stateOrCountry>CT</ns2:stateOrCountry>
                <ns2:zipCode>06810</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>(818) 661-5000</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>MICHAEL CASTAGNA</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Officer</relationshipToIssuer>
                <relationshipToIssuer>Director</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>90482</noOfUnitsSold>
            <aggregateMarketValue>361928.00</aggregateMarketValue>
            <noOfUnitsOutstanding>269574654</noOfUnitsOutstanding>
            <approxSaleDate>12/15/2023</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>COMMON</securitiesClassTitle>
            <acquiredDate>05/18/2023</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>31089</amountOfSecuritiesAcquired>
            <paymentDate>05/18/2023</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>COMMON</securitiesClassTitle>
            <acquiredDate>05/10/2023</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>7839</amountOfSecuritiesAcquired>
            <paymentDate>05/10/2023</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>COMMON</securitiesClassTitle>
            <acquiredDate>08/27/2023</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>51554</amountOfSecuritiesAcquired>
            <paymentDate>08/27/2023</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>MICHAEL CASTAGNA</name>
                <address>
                    <ns2:street1>1 Casper Street</ns2:street1>
                    <ns2:city>Danbury</ns2:city>
                    <ns2:stateOrCountry>CT</ns2:stateOrCountry>
                    <ns2:zipCode>06810</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>12/14/2023</saleDate>
            <amountOfSecuritiesSold>100000</amountOfSecuritiesSold>
            <grossProceeds>400000.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>MICHAEL CASTAGNA</name>
                <address>
                    <ns2:street1>1 Casper Street</ns2:street1>
                    <ns2:city>Danbury</ns2:city>
                    <ns2:stateOrCountry>CT</ns2:stateOrCountry>
                    <ns2:zipCode>06810</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>11/01/2023</saleDate>
            <amountOfSecuritiesSold>10000</amountOfSecuritiesSold>
            <grossProceeds>42500.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>MICHAEL CASTAGNA</name>
                <address>
                    <ns2:street1>1 Casper Street</ns2:street1>
                    <ns2:city>Danbury</ns2:city>
                    <ns2:stateOrCountry>CT</ns2:stateOrCountry>
                    <ns2:zipCode>06810</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>10/02/2023</saleDate>
            <amountOfSecuritiesSold>10000</amountOfSecuritiesSold>
            <grossProceeds>46100.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>12/15/2023</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>09/01/2023</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Michael Edward Castagna</signature>
        </noticeSignature>
    </formData>
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144
0001674282
XXXXXXXX
LIVE
0000899460
MANNKIND CORPORATION
000-50865
1 Casper Street
Danbury
CT
06810
(818) 661-5000
MICHAEL CASTAGNA
Officer
Director
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
38th Floor
New York
NY
10004
90482
361928.00
269574654
12/15/2023
NASDAQ
COMMON
05/18/2023
Restricted Stock
ISSUER
N
31089
05/18/2023
Not Applicable
COMMON
05/10/2023
Restricted Stock
ISSUER
N
7839
05/10/2023
Not Applicable
COMMON
08/27/2023
Restricted Stock
ISSUER
N
51554
08/27/2023
Not Applicable
N
MICHAEL CASTAGNA
1 Casper Street
Danbury
CT
06810
Common
12/14/2023
100000
400000.00
MICHAEL CASTAGNA
1 Casper Street
Danbury
CT
06810
Common
11/01/2023
10000
42500.00
MICHAEL CASTAGNA
1 Casper Street
Danbury
CT
06810
Common
10/02/2023
10000
46100.00
12/15/2023
09/01/2023
/s/ Michael Edward Castagna