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  <!-- Generated by Workiva -->
  <own:headerData>
    <own:submissionType>144</own:submissionType>
    <own:filerInfo>
      <own:filer>
        <own:filerCredentials>
          <own:cik>0002031701</own:cik>
          <own:ccc>XXXXXXXX</own:ccc>
        </own:filerCredentials>
      </own:filer>
      <own:liveTestFlag>LIVE</own:liveTestFlag>



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  <own:formData>
    <own:issuerInfo>
      <own:issuerCik>0001828161</own:issuerCik>
      <own:issuerName>FTC SOLAR</own:issuerName>
      <own:issuerAddress>
        <com:street1>Quarry Oaks II Building</com:street1>
        <com:street2>10900 Stonelake Blvd Suite 100</com:street2>
        <com:city>AUSTIN</com:city>
        <com:stateOrCountry>TX</com:stateOrCountry>
        <com:zipCode>78759</com:zipCode>
      </own:issuerAddress>
      <own:issuerContactPhone>7133673807</own:issuerContactPhone>
      <own:nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>YANN BRANDT</own:nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <own:relationshipsToIssuer>
        <own:relationshipToIssuer>OFFICER</own:relationshipToIssuer>
      </own:relationshipsToIssuer>
    </own:issuerInfo>
    <own:securitiesInformation>
      <own:securitiesClassTitle>Common</own:securitiesClassTitle>
      <own:brokerOrMarketmakerDetails>
        <own:name>Merrill Lynch</own:name>
        <own:address>
          <com:street1>13355 Noel Road Suite Suite 700</com:street1>
          <com:city>Dallas</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>75240</com:zipCode>
        </own:address>
      </own:brokerOrMarketmakerDetails>
      <own:noOfUnitsSold>370</own:noOfUnitsSold>
      <own:aggregateMarketValue>1850</own:aggregateMarketValue>
      <own:noOfUnitsOutstanding>16005294</own:noOfUnitsOutstanding>
      <own:approxSaleDate>07/01/2026</own:approxSaleDate>
      <own:securitiesExchangeName>NASDAQ</own:securitiesExchangeName>
    </own:securitiesInformation>
    <own:securitiesToBeSold>
      <own:securitiesClassTitle>COMMON</own:securitiesClassTitle>
      <own:acquiredDate>05/01/2025</own:acquiredDate>
      <own:natureOfAcquisitionTransaction>RESTRICTED STOCK</own:natureOfAcquisitionTransaction>
      <own:nameOfPersonfromWhomAcquired>FTC SOLAR</own:nameOfPersonfromWhomAcquired>
      <own:isGiftTransaction>N</own:isGiftTransaction>
      <own:amountOfSecuritiesAcquired>125000</own:amountOfSecuritiesAcquired>
      <own:paymentDate>05/01/2025</own:paymentDate>
      <own:natureOfPayment>EQUITY AWARD</own:natureOfPayment>
    </own:securitiesToBeSold>
    <own:nothingToReportFlagOnSecuritiesSoldInPast3Months>N</own:nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <own:securitiesSoldInPast3Months>
      <own:sellerDetails>
        <own:name>YANN BRANDT</own:name>
        <own:address>
          <com:street1>Quarry Oaks II Building</com:street1>
          <com:street2>10900 Stonelake Blvd Suite 100</com:street2>
          <com:city>Austin</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>78759</com:zipCode>
        </own:address>
      </own:sellerDetails>
      <own:securitiesClassTitle>COMMON</own:securitiesClassTitle>
      <own:saleDate>06/30/2026</own:saleDate>
      <own:amountOfSecuritiesSold>15468</own:amountOfSecuritiesSold>
      <own:grossProceeds>75860.98</own:grossProceeds>
    </own:securitiesSoldInPast3Months>
    <own:securitiesSoldInPast3Months>
      <own:sellerDetails>
        <own:name>YANN BRANDT</own:name>
        <own:address>
          <com:street1>Quarry Oaks II Building</com:street1>
          <com:street2>10900 Stonelake Blvd Suite 100</com:street2>
          <com:city>Austin</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>78759</com:zipCode>
        </own:address>
      </own:sellerDetails>
      <own:securitiesClassTitle>COMMON</own:securitiesClassTitle>
      <own:saleDate>06/29/2026</own:saleDate>
      <own:amountOfSecuritiesSold>16526</own:amountOfSecuritiesSold>
      <own:grossProceeds>79542.84</own:grossProceeds>
    </own:securitiesSoldInPast3Months>
    <own:securitiesSoldInPast3Months>
      <own:sellerDetails>
        <own:name>YANN BRANDT</own:name>
        <own:address>
          <com:street1>Quarry Oaks II Building</com:street1>
          <com:street2>10900 Stonelake Blvd Suite 100</com:street2>
          <com:city>Austin</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>78759</com:zipCode>
        </own:address>
      </own:sellerDetails>
      <own:securitiesClassTitle>COMMON</own:securitiesClassTitle>
      <own:saleDate>06/26/2026</own:saleDate>
      <own:amountOfSecuritiesSold>39229</own:amountOfSecuritiesSold>
      <own:grossProceeds>179134.95</own:grossProceeds>
    </own:securitiesSoldInPast3Months>
    <own:securitiesSoldInPast3Months>
      <own:sellerDetails>
        <own:name>YANN BRANDT</own:name>
        <own:address>
          <com:street1>Quarry Oaks II Building</com:street1>
          <com:street2>10900 Stonelake Blvd Suite 100</com:street2>
          <com:city>Austin</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>78759</com:zipCode>
        </own:address>
      </own:sellerDetails>
      <own:securitiesClassTitle>COMMON</own:securitiesClassTitle>
      <own:saleDate>06/25/2026</own:saleDate>
      <own:amountOfSecuritiesSold>14778</own:amountOfSecuritiesSold>
      <own:grossProceeds>67091.98</own:grossProceeds>
    </own:securitiesSoldInPast3Months>
    <own:securitiesSoldInPast3Months>
      <own:sellerDetails>
        <own:name>YANN BRANDT</own:name>
        <own:address>
          <com:street1>Quarry Oaks II Building</com:street1>
          <com:street2>10900 Stonelake Blvd Suite 100</com:street2>
          <com:city>Austin</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>78759</com:zipCode>
        </own:address>
      </own:sellerDetails>
      <own:securitiesClassTitle>COMMON</own:securitiesClassTitle>
      <own:saleDate>06/24/2026</own:saleDate>
      <own:amountOfSecuritiesSold>9527</own:amountOfSecuritiesSold>
      <own:grossProceeds>47270.83</own:grossProceeds>
    </own:securitiesSoldInPast3Months>
    <own:noticeSignature>
      <own:noticeDate>07/01/2026</own:noticeDate>
      <own:signature>YANN BRANDT</own:signature>
    </own:noticeSignature>
  </own:formData>
</own:edgarSubmission>
