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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>AS OF DECEMBER 31, 2018, MANAGEMENT BELIEVES THAT BASED ON EVALUATION OF THE FOUNDATION'S TAX POSITIONS THAT ANY LIABILITY AS A RESULT OF UNCERTAIN TAX POSITIONS WOULD NOT BE MATERIAL. MANAGEMENT CONTINUALLY EVALUATES EXPIRING STATUTES OF LIMITATIONS, CHANGES IN TAX LAW, AND NEW AUTHORITATIVE RULINGS TO ASSIST IN EVALUATING THE FOUNDATION'S TAX POSITIONS. ACCRUED INTEREST AND PENALTIES ASSOCIATED WITH UNCERTAIN TAX POSITIONS, IF ANY, WOULD BE RECOGNIZED AS PART OF THE INCOME TAX PROVISION. INCOME TAX RETURNS ARE FILED IN THE U.S. FEDERAL JURISDICTION AND STATE JURISDICTIONS. U.S. FEDERAL AND STATE INCOME TAX RETURNS PRIOR TO FISCAL YEAR 2015 ARE CLOSED.</ExplanationTxt>
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        <PurposeOfGrantTxt>PREDICTIVE DRUG REPURPOSING FOR BARTH SYNDROME</PurposeOfGrantTxt>
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      <GrantsToOrgOutsideUSGrp>
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      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>NORTH AMERICA</RegionTxt>
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          <BusinessNameLine1Txt>ADELPHI VALUES</BusinessNameLine1Txt>
        </RecipientBusinessName>
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      <RecipientTable>
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      <RecipientTable>
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          <CityNm>NEW YORK</CityNm>
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        <PurposeOfGrantTxt>PRENATAL CARDIAC PHENOTYPE AS A PLATFORM FOR TESTING BARTH SYNDROME THERAPIES</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <PurposeOfGrantTxt>CARDIOLIPIN ACTIVATES PYRUVATE DEHYDROGENARE (PDH) - A POTENTIAL NEW TARGET FOR TREATMENT OF BARTH SYNDROME</PurposeOfGrantTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>PRIOR TO MAKING ANY PAYMENT, WE REQUIRE CERTIFICATION OF THE USE OF FUNDS FROM THE CONTRACTING OFFICER OF THE INSTITUTION RECEIVING THE GRANT ON BEHALF OF THE GRANT RECEPIENT. EVERY SIX MONTHS THEREAFTER, AND PRIOR TO ANY SUBSEQUENT PAYMENTS, THE CERTIFYING OFFICER OF THE INSTITUTION AND THE GRANT RECIPIENT MUST SIGN A DOCUMENT CERTIFYING THAT THE RESEARCH IS CONTINUING AS PLANNED AND THAT REASONABLE PROGRESS IS BEING MADE IN ACCORDANCE WITH THE ORIGINAL PROPOSAL. FOLLOWING COMPLETION OF THE WORK, A SUMMARY OF THE RESEARCH RESULTS IS REQUIRED TO BE SENT TO US AS WELL AS ANY PUBLISHED FINDING.</ExplanationTxt>
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    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FORM 990 IS SENT TO THE FULL BOARD OF DIRECTORS VIA EMAIL PRIOR TO BEING FILED WITH IRS. ALL DIRECTORS ARE AFFORDED THE OPPORTUNITY TO ASK QUESTIONS AND OFFER EDITS. THE DECISION OF WHETHER TO MAKE EDITS IS MADE BY THE STAFF PERSON IN CHARGE OF FINANCES WITHIN THE ORGANIZATION IN CONJUNCTION WITH CONSULTATION WITH OUR TAX PREPARER.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>EACH BOARD MEMBER AND ALL EMPLOYEES WHO CAN INFLUENCE THE ACTIONS OF BARTH SYNDROME FOUNDATION (BSF) MUST FILL OUT AN ANNUAL DECLARATION STATING THAT THEY HAD NO CONFLICTS OR IDENTIFYING THE NATURE OF THEIR INTERESTED PARTY TRANSACTIONS.IT IS THE RESPONSABILITY OF THE BOARD, OFFICERS, AND MANAGEMENT EMPLOYEES TO SCRUTINIZE THEIR TRANSACTIONS AND OUTSIDE BUSINESS INTERESTS AND RELATIONSHIPS FOR POTENTIAL CONFLICTS AND TO IMMEDIATELY MAKE SUCH DISCLOSURES. THE BOARD SHALL DETERMINE WHETHER A CONFLICT EXISTS AND IN THE CASE OF AN EXISTING CONFLICT, WHETHER THE CONTEMPLATED TRANSACTION MAY BE AUTHORIZED AS JUST, FAIR, AND REASONABLE TO BSF.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>EACH YEAR, THE EXECUTIVE AND COMPENSATION COMMITTEES REVIEW COMPARABLE SALARIES BASED ON A RECOGNIZED STUDY, REVIEWS INFORMATION FROM OTHER COMPARABLE ORGANIZATIONS' 990'S, AND REVIEWS THE PERFORMANCE OF THE EXECUTIVE DIRECTOR AND THE KEY EMPLOYEES TO DETERMINE IF THE EXISTING SALARIES FALL WITHIN THESE RANGES. AFTER A DELIBERATION OF THIS MATTER, A NEW PROPOSED SALARY AND BENEFIT PACKAGE IS VOTED ON. THE MINUTES OF THE BOARD OF DIRECTORS REFLECT THE NATURE OF THIS PROCESS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FOUNDATION MAKES ITS GOVERNING DOCUMENTS, CONFLICT OF INTEREST AND OTHER POLICIES, AND FINANCIAL STATEMENTS AVAILABLE TO THE PUBLIC ON ITS WEBSITE AND/OR BY REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 11, PART XI, LINE 2C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD OF DIRECTORS IS RESPONSIBLE FOR OVERSIGHT OF THE AUDIT SELECTION OF THE INDEPENDENT ACCOUNTANT.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
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</Return>