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    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001770252</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>


    </filerInfo>
  </headerData>
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    <issuerInfo>
      <issuerCik>0000899923</issuerCik>
      <issuerName>MYRIAD GENETICS INC</issuerName>
      <secFileNumber>000-26642</secFileNumber>
      <issuerAddress>
        <com:street1>320 WAKARA WAY</com:street1>
        <com:city>SALT LAKE CITY</com:city>
        <com:stateOrCountry>UT</com:stateOrCountry>
        <com:zipCode>84108</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>801-584-3600</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Lambert Nicole</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Fidelity Brokerage Services LLC</name>
        <address>
          <com:street1>900 Salem Street</com:street1>
          <com:city>Smithfield</com:city>
          <com:stateOrCountry>RI</com:stateOrCountry>
          <com:zipCode>02917</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>13184</noOfUnitsSold>
      <aggregateMarketValue>299822.32</aggregateMarketValue>
      <noOfUnitsOutstanding>81223713</noOfUnitsOutstanding>
      <approxSaleDate>03/02/2023</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>08/25/2021</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>877</amountOfSecuritiesAcquired>
      <paymentDate>08/25/2021</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>09/25/2021</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>1501</amountOfSecuritiesAcquired>
      <paymentDate>09/25/2021</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>09/26/2021</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>3287</amountOfSecuritiesAcquired>
      <paymentDate>09/26/2021</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>10/09/2021</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>3020</amountOfSecuritiesAcquired>
      <paymentDate>10/09/2021</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>10/09/2021</acquiredDate>
      <natureOfAcquisitionTransaction>Performance Shares</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>4499</amountOfSecuritiesAcquired>
      <paymentDate>10/09/2021</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>03/02/2023</noticeDate>
      <planAdoptionDates>
        <planAdoptionDate>11/09/2022</planAdoptionDate>
      </planAdoptionDates>
      <signature>/s/ Lisa Gerard, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Nicole Lambert</signature>
    </noticeSignature>
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144
0001770252
XXXXXXXX
LIVE
0000899923
MYRIAD GENETICS INC
000-26642
320 WAKARA WAY
SALT LAKE CITY
UT
84108
801-584-3600
Lambert Nicole
Officer
Common
Fidelity Brokerage Services LLC
900 Salem Street
Smithfield
RI
02917
13184
299822.32
81223713
03/02/2023
NASDAQ
Common
08/25/2021
Restricted Stock Vesting
Issuer
N
877
08/25/2021
Compensation
Common
09/25/2021
Restricted Stock Vesting
Issuer
N
1501
09/25/2021
Compensation
Common
09/26/2021
Restricted Stock Vesting
Issuer
N
3287
09/26/2021
Compensation
Common
10/09/2021
Restricted Stock Vesting
Issuer
N
3020
10/09/2021
Compensation
Common
10/09/2021
Performance Shares
Issuer
N
4499
10/09/2021
Compensation
Y
03/02/2023
11/09/2022
/s/ Lisa Gerard, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Nicole Lambert