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    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001879223</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>


    </filerInfo>
  </headerData>
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    <issuerInfo>
      <issuerCik>0000921299</issuerCik>
      <issuerName>FIBROGEN INC</issuerName>
      <secFileNumber>001-36740</secFileNumber>
      <issuerAddress>
        <com:street1>409 ILLINOIS STREET</com:street1>
        <com:city>SAN FRANCISCO</com:city>
        <com:stateOrCountry>CA</com:stateOrCountry>
        <com:zipCode>94158</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>415-978-1200</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Graham Juan</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>COMMON</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>ETRADE FINANCIALCORPORATION</name>
        <address>
          <com:street1>3 EDISON DRIVE</com:street1>
          <com:city>ALPHARETTA</com:city>
          <com:stateOrCountry>GA</com:stateOrCountry>
          <com:zipCode>30005</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>1050</noOfUnitsSold>
      <aggregateMarketValue>17796.92</aggregateMarketValue>
      <noOfUnitsOutstanding>94000000</noOfUnitsOutstanding>
      <approxSaleDate>06/08/2023</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>COMMON</securitiesClassTitle>
      <acquiredDate>06/08/2023</acquiredDate>
      <natureOfAcquisitionTransaction>RESTRICTED STOCK</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>1050</amountOfSecuritiesAcquired>
      <paymentDate>06/08/2023</paymentDate>
      <natureOfPayment>COMPENSATION</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>FBO Juan Graham</name>
        <address>
          <com:street1>4005 Windward Plaza Drive</com:street1>
          <com:city>Alpharetta</com:city>
          <com:stateOrCountry>GA</com:stateOrCountry>
          <com:zipCode>30005</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>RESTRICTED STOCK</securitiesClassTitle>
      <saleDate>03/08/2023</saleDate>
      <amountOfSecuritiesSold>2749</amountOfSecuritiesSold>
      <grossProceeds>58157.57</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>FBO Juan Graham</name>
        <address>
          <com:street1>4005 Windward Plaza Drive</com:street1>
          <com:city>Alpharetta</com:city>
          <com:stateOrCountry>GA</com:stateOrCountry>
          <com:zipCode>30005</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>RESTRICTED STOCK</securitiesClassTitle>
      <saleDate>03/10/2023</saleDate>
      <amountOfSecuritiesSold>1112</amountOfSecuritiesSold>
      <grossProceeds>22459.40</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>FBO Juan Graham</name>
        <address>
          <com:street1>4005 Windward Plaza Drive</com:street1>
          <com:city>Alpharetta</com:city>
          <com:stateOrCountry>GA</com:stateOrCountry>
          <com:zipCode>30005</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>PSU TSR Grant</securitiesClassTitle>
      <saleDate>03/10/2023</saleDate>
      <amountOfSecuritiesSold>2344</amountOfSecuritiesSold>
      <grossProceeds>47342.47</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>FBO Juan Graham</name>
        <address>
          <com:street1>4005 Windward Plaza Drive</com:street1>
          <com:city>Alpharetta</com:city>
          <com:stateOrCountry>GA</com:stateOrCountry>
          <com:zipCode>30005</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>PSU Milestone Grant</securitiesClassTitle>
      <saleDate>03/10/2023</saleDate>
      <amountOfSecuritiesSold>1456</amountOfSecuritiesSold>
      <grossProceeds>29407.27</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>FBO Juan Graham</name>
        <address>
          <com:street1>4005 Windward Plaza Drive</com:street1>
          <com:city>Alpharetta</com:city>
          <com:stateOrCountry>GA</com:stateOrCountry>
          <com:zipCode>30005</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>RESTRICTED STOCK</securitiesClassTitle>
      <saleDate>06/07/2023</saleDate>
      <amountOfSecuritiesSold>735</amountOfSecuritiesSold>
      <grossProceeds>12523.18</grossProceeds>
    </securitiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>06/08/2023</noticeDate>
      <signature>/s/ Juan Graham</signature>
    </noticeSignature>
  </formData>
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144
0001879223
XXXXXXXX
LIVE
0000921299
FIBROGEN INC
001-36740
409 ILLINOIS STREET
SAN FRANCISCO
CA
94158
415-978-1200
Graham Juan
Officer
COMMON
ETRADE FINANCIALCORPORATION
3 EDISON DRIVE
ALPHARETTA
GA
30005
1050
17796.92
94000000
06/08/2023
NASDAQ
COMMON
06/08/2023
RESTRICTED STOCK
ISSUER
N
1050
06/08/2023
COMPENSATION
N
FBO Juan Graham
4005 Windward Plaza Drive
Alpharetta
GA
30005
RESTRICTED STOCK
03/08/2023
2749
58157.57
FBO Juan Graham
4005 Windward Plaza Drive
Alpharetta
GA
30005
RESTRICTED STOCK
03/10/2023
1112
22459.40
FBO Juan Graham
4005 Windward Plaza Drive
Alpharetta
GA
30005
PSU TSR Grant
03/10/2023
2344
47342.47
FBO Juan Graham
4005 Windward Plaza Drive
Alpharetta
GA
30005
PSU Milestone Grant
03/10/2023
1456
29407.27
FBO Juan Graham
4005 Windward Plaza Drive
Alpharetta
GA
30005
RESTRICTED STOCK
06/07/2023
735
12523.18
06/08/2023
/s/ Juan Graham