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                <ns2:street2>440 US Route 22 </ns2:street2>
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                <ns2:stateOrCountry>NJ</ns2:stateOrCountry>
                <ns2:zipCode>08807</ns2:zipCode>
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            <issuerContactPhone>9087191315</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>STEVEN B. KETCHUM</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
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            <securitiesClassTitle>Common</securitiesClassTitle>
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                    <ns2:street2>38th Fl.</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
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            <aggregateMarketValue>28564.23</aggregateMarketValue>
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            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
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            <natureOfAcquisitionTransaction>Restricted Stock Units</natureOfAcquisitionTransaction>
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            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>34131</amountOfSecuritiesAcquired>
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        <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
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            <noticeDate>12/12/2023</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>09/12/2023</planAdoptionDate>
            </planAdoptionDates>
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144
0001289884
XXXXXXXX
LIVE
0000897448
AMARIN CORP PLC AMERICAN
000-21392
c/o Amarin Pharma, Inc.
440 US Route 22
Bridgewater Township
NJ
08807
9087191315
STEVEN B. KETCHUM
Officer
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
38th Fl.
New York
NY
10004
34131
28564.23
408291815
12/12/2023
NASDAQ
Common
01/31/2020
Restricted Stock Units
Issuer
N
34131
01/31/2020
N/A
Y
12/12/2023
09/12/2023
/s/ Steven Blake Ketchum