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        <BusinessNameLine1Txt>KMT2C FOUNDATION</BusinessNameLine1Txt>
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        <AddressLine1Txt>3515 LONGMIRE DR STE B PMB 188</AddressLine1Txt>
        <CityNm>COLLEGE STATION</CityNm>
        <StateAbbreviationCd>TX</StateAbbreviationCd>
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      <PersonNm>Matthias Koch</PersonNm>
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      <PrimaryExemptPurposeTxt>Establishing the KMT2C Foundation as a new 501c3 organization focused on rare genetic disease advocacy and research support Activities included incorporating the Foundation recruiting and establishing the initial Board of Directors preparing governing documents and policies building an initial website presence and preparing materials for the Form 1023 application submitted in 2026 All 1485 of the organizations expenses for the year were related to these start-up and formation activities</PrimaryExemptPurposeTxt>
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        <PersonNm>Jordana Koch</PersonNm>
        <TitleTxt>President Co-Founder</TitleTxt>
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      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Matthias Koch</PersonNm>
        <TitleTxt>Chief Scientific Officer Co-Founder</TitleTxt>
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      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Joshua Shaevitz</PersonNm>
        <TitleTxt>Director</TitleTxt>
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        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Alisa Mo</PersonNm>
        <TitleTxt>Director</TitleTxt>
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      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Alyssa Tran</PersonNm>
        <TitleTxt>Director</TitleTxt>
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      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>Christian Schaaf</PersonNm>
        <TitleTxt>Director</TitleTxt>
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      <TaxImposedOnOrganizationMgrAmt>0</TaxImposedOnOrganizationMgrAmt>
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        <PersonNm>Matthias Koch</PersonNm>
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          <AddressLine1Txt>3515 Longmire Drive</AddressLine1Txt>
          <CityNm>College Station</CityNm>
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      <DonorAdvisedFndsInd>false</DonorAdvisedFndsInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <TanningServicesProvidedInd>false</TanningServicesProvidedInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
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        <CurrentTaxYearAmt>1614</CurrentTaxYearAmt>
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        <CurrentTaxYearMinus4YearsAmt>0</CurrentTaxYearMinus4YearsAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>Other expenses of 1485 consisted of start-up and formation costs including website development and hosting software and administrative tools mailbox and basic operational expenses and other costs related to incorporating the Foundation establishing the Board of Directors and preparing governing documents and materials for the Form 1023 application</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part V, line 34</FormAndLineReferenceDesc>
        <ExplanationTxt>The organizations Articles of Incorporation and Bylaws were initially prepared and refined throughout 2025 as the Foundation was being established Multiple drafts were developed and revised during the year The final versions of the governing documents were formally adopted by the Board of Directors in 2026 in connection with the submission of the Form 1023 application</ExplanationTxt>
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    <ReasonableCauseExplanation documentId="RCE001">
      <ExplanationTxt>Late filling cause We are filling late because we did only submit our full 1023 application on 5212026 and received the IRS approval letter dated 62426 in early July We apologize that this resulted in a late filling of form 990 and kindly ask to waive any late filling fees if possible</ExplanationTxt>
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