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      <filer>
        <filerCredentials>
          <cik>0001608782</cik>
          <ccc>XXXXXXXX</ccc>
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      <liveTestFlag>LIVE</liveTestFlag>



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      <issuerCik>0001564824</issuerCik>
      <issuerName>Allakos Inc.</issuerName>
      <secFileNumber>001-38582</secFileNumber>
      <issuerAddress>
        <com:street1>825 INDUSTRIAL ROAD</com:street1>
        <com:street2>SUITE 500</com:street2>
        <com:city>SAN CARLOS</com:city>
        <com:stateOrCountry>CA</com:stateOrCountry>
        <com:zipCode>94070</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>650-597-5002</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Alexander Robert</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
        <relationshipToIssuer>Director</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>2917</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>26415</noOfUnitsSold>
      <aggregateMarketValue>135619.90</aggregateMarketValue>
      <noOfUnitsOutstanding>86560315</noOfUnitsOutstanding>
      <approxSaleDate>06/02/2023</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>06/01/2023</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>26415</amountOfSecuritiesAcquired>
      <paymentDate>06/01/2023</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Robert Alexander</name>
        <address>
          <com:street1>825 Industrial Road</com:street1>
          <com:street2>Suite 500</com:street2>
          <com:city>San Carlos</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94070</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>03/07/2023</saleDate>
      <amountOfSecuritiesSold>9143</amountOfSecuritiesSold>
      <grossProceeds>58531.67</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Robert Alexander</name>
        <address>
          <com:street1>825 Industrial Road</com:street1>
          <com:street2>Suite 500</com:street2>
          <com:city>San Carlos</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94070</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>03/08/2023</saleDate>
      <amountOfSecuritiesSold>66274</amountOfSecuritiesSold>
      <grossProceeds>413563.01</grossProceeds>
    </securitiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>06/02/2023</noticeDate>
      <signature>/s/ Ryan Riviere, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Robert A. Alexander</signature>
    </noticeSignature>
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144
0001608782
XXXXXXXX
LIVE
0001564824
Allakos Inc.
001-38582
825 INDUSTRIAL ROAD
SUITE 500
SAN CARLOS
CA
94070
650-597-5002
Alexander Robert
Officer
Director
Common
Fidelity Brokerage Services LLC
900 Salem Street
Smithfield
RI
2917
26415
135619.90
86560315
06/02/2023
NASDAQ
Common
06/01/2023
Restricted Stock Vesting
Issuer
N
26415
06/01/2023
Compensation
N
Robert Alexander
825 Industrial Road
Suite 500
San Carlos
CA
94070
Common
03/07/2023
9143
58531.67
Robert Alexander
825 Industrial Road
Suite 500
San Carlos
CA
94070
Common
03/08/2023
66274
413563.01
06/02/2023
/s/ Ryan Riviere, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Robert A. Alexander