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        <com:stateOrCountry>MA</com:stateOrCountry>
        <com:zipCode>01862</com:zipCode>
      </issuerAddress>
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          <com:city>Smithfield</com:city>
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      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
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          <com:zipCode>01730</com:zipCode>
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          <com:zipCode>01730</com:zipCode>
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          <com:stateOrCountry>MA</com:stateOrCountry>
          <com:zipCode>01730</com:zipCode>
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      <securitiesClassTitle>Common</securitiesClassTitle>
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      <grossProceeds>559080.96</grossProceeds>
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    <securitiesSoldInPast3Months>
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          <com:stateOrCountry>MA</com:stateOrCountry>
          <com:zipCode>01730</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>03/07/2023</saleDate>
      <amountOfSecuritiesSold>950</amountOfSecuritiesSold>
      <grossProceeds>68546.59</grossProceeds>
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      <sellerDetails>
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    <noticeSignature>
      <noticeDate>04/17/2023</noticeDate>
      <planAdoptionDates>
        <planAdoptionDate>05/13/2022</planAdoptionDate>
      </planAdoptionDates>
      <signature>/s/ Ryan Riviere, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Andrea Sabens</signature>
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144
0001876279
XXXXXXXX
LIVE
0001521036
Lantheus Holdings, Inc.
001-36569
331 TREBLE COVE ROAD
NORTH BILLERICA
MA
01862
9786718001
Sabens Andrea
Officer
Common
Fidelity Brokerage Services LLC
900 Salem Street
Smithfield
RI
02917
386
34226.62
67540065
04/17/2023
NASDAQ
Common
02/23/2020
Restricted Stock Vesting
Issuer
N
386
02/23/2020
Compensation
N
ANDREA SABENS
201 Burlington Road
South Building
Bedford
MA
01730
Common
01/17/2023
386
20446.42
ANDREA SABENS
201 Burlington Road
South Building
Bedford
MA
01730
Common
02/15/2023
386
22202.72
ANDREA SABENS
201 Burlington Road
South Building
Bedford
MA
01730
Common
03/06/2023
7705
559080.96
ANDREA SABENS
201 Burlington Road
South Building
Bedford
MA
01730
Common
03/07/2023
950
68546.59
ANDREA SABENS
201 Burlington Road
South Building
Bedford
MA
01730
Common
03/15/2023
386
27629.88
04/17/2023
05/13/2022
/s/ Ryan Riviere, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Andrea Sabens