<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001078582</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0001051627</issuerCik>
      <issuerName>AXT INC</issuerName>
      <secFileNumber>000-24085</secFileNumber>
      <issuerAddress>
        <com:street1>4281 TECHNOLOGY DR.</com:street1>
        <com:city>FREMONT</com:city>
        <com:stateOrCountry>CA</com:stateOrCountry>
        <com:zipCode>94538</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>510.438.4734</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>YOUNG MORRIS S</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Needham and Company LLC</name>
        <address>
          <com:street1>250 Park Avenue, 10th Floor</com:street1>
          <com:city>New York</com:city>
          <com:stateOrCountry>NY</com:stateOrCountry>
          <com:zipCode>10017</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>125893</noOfUnitsSold>
      <aggregateMarketValue>4596655.57</aggregateMarketValue>
      <noOfUnitsOutstanding>46623170</noOfUnitsOutstanding>
      <approxSaleDate>03/09/2026</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>02/18/2026</acquiredDate>
      <natureOfAcquisitionTransaction>Performance Stock Award</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>AXT Inc.</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>125893</amountOfSecuritiesAcquired>
      <paymentDate>02/18/2026</paymentDate>
      <natureOfPayment>Equity Compensation</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Morris S Young</name>
        <address>
          <com:street1>4281 Technology Dr.</com:street1>
          <com:city>Freemont</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94538</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>12/04/2025</saleDate>
      <amountOfSecuritiesSold>35000</amountOfSecuritiesSold>
      <grossProceeds>421652.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Morris S Young</name>
        <address>
          <com:street1>4281 Technology Dr.</com:street1>
          <com:city>Freemont</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94538</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>12/08/2025</saleDate>
      <amountOfSecuritiesSold>37160</amountOfSecuritiesSold>
      <grossProceeds>462909.55</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Morris S Young</name>
        <address>
          <com:street1>4281 Technology Dr.</com:street1>
          <com:city>Freemont</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94538</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>03/02/2026</saleDate>
      <amountOfSecuritiesSold>159536</amountOfSecuritiesSold>
      <grossProceeds>6911466.45</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Morris S Young</name>
        <address>
          <com:street1>4281 Technology Dr.</com:street1>
          <com:city>Freemont</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94538</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>03/06/2026</saleDate>
      <amountOfSecuritiesSold>8300</amountOfSecuritiesSold>
      <grossProceeds>329063.46</grossProceeds>
    </securitiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>03/09/2026</noticeDate>
      <signature>/s/Needham and Company LLC, on behalf of Morris S. Young</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
