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    <ReturnTs>2017-03-17T14:33:17-05:00</ReturnTs>
    <TaxPeriodEndDt>2016-10-31</TaxPeriodEndDt>
    <ReturnTypeCd>990PF</ReturnTypeCd>
    <TaxPeriodBeginDt>2015-11-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>205973757</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>Robert C Dart Foundation</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>ROBE</BusinessNameControlTxt>
      <PhoneNum>5176763803</PhoneNum>
      <USAddress>
        <AddressLine1Txt>500 Hogsback Road</AddressLine1Txt>
        <CityNm>Mason</CityNm>
        <StateAbbreviationCd>MI</StateAbbreviationCd>
        <ZIPCd>48854</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>Francis X Liesman II</PersonNm>
      <PersonTitleTxt>Asst. Secretary</PersonTitleTxt>
      <PhoneNum>5176763803</PhoneNum>
      <SignatureDt>2017-03-17</SignatureDt>
    </BusinessOfficerGrp>
    <TaxYr>2015</TaxYr>
    <BuildTS>2021-01-29 14:40:06Z</BuildTS>
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        <TotalNetInvstIncmAmt>329038</TotalNetInvstIncmAmt>
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        <TotalLiabilitiesEOYAmt>0</TotalLiabilitiesEOYAmt>
        <OrgDoesNotFollowSFAS117Ind>X</OrgDoesNotFollowSFAS117Ind>
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        <CapitalStockEOYAmt>0</CapitalStockEOYAmt>
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        <AdditionalPaidInCapitalEOYAmt>0</AdditionalPaidInCapitalEOYAmt>
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      <ChgInNetAssetsFundBalancesGrp>
        <TotNetAstOrFundBalancesBOYAmt>23437591</TotNetAstOrFundBalancesBOYAmt>
        <ExcessRevenueOverExpensesAmt>-3156640</ExcessRevenueOverExpensesAmt>
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        <TotNetAstOrFundBalancesEOYAmt>20280951</TotNetAstOrFundBalancesEOYAmt>
      </ChgInNetAssetsFundBalancesGrp>
      <CapGainsLossTxInvstIncmDetail>
        <CapGainsLossTxInvstIncmGrp>
          <PropertyDesc>S&amp;P 500 ETF Trust</PropertyDesc>
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          <SoldDt>2016-01-21</SoldDt>
          <GrossSalesPriceAmt>3369255</GrossSalesPriceAmt>
          <CostOrOtherBasisAmt>3143498</CostOrOtherBasisAmt>
          <GainOrLossAmt>225757</GainOrLossAmt>
          <GainsMinusExcessOrLossesAmt>225757</GainsMinusExcessOrLossesAmt>
        </CapGainsLossTxInvstIncmGrp>
        <CapGainsLossTxInvstIncmGrp>
          <PropertyDesc>Verizon Communications Inc</PropertyDesc>
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          <SoldDt>2016-04-08</SoldDt>
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        <CapGainsLossTxInvstIncmGrp>
          <PropertyDesc>Bank of America FDG Corp</PropertyDesc>
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      <QlfyUndSect4940eReducedTaxGrp>
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      </QlfyUndSect4940eReducedTaxGrp>
      <ExciseTaxBasedOnInvstIncmGrp>
        <DomesticOrgMeetingSect4940eInd>X</DomesticOrgMeetingSect4940eInd>
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        <OverpaymentAmt>14391</OverpaymentAmt>
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      <StatementsRegardingActyGrp>
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        <ActivitiesNotPreviouslyRptInd>0</ActivitiesNotPreviouslyRptInd>
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        <OrgReportOrRegisterStateCd>MI</OrgReportOrRegisterStateCd>
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        <OwnControlledEntityInd>0</OwnControlledEntityInd>
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        <ComplyWithPublicInspRqrInd>1</ComplyWithPublicInspRqrInd>
        <WebsiteAddressTxt>Forms 990-PF are available at www.guidestar.org</WebsiteAddressTxt>
        <IndividualWithBooksNm>Teri Hull</IndividualWithBooksNm>
        <PhoneNum>5176763803</PhoneNum>
        <LocationOfBooksUSAddress>
          <AddressLine1Txt>500 Hogsback Road</AddressLine1Txt>
          <CityNm>Mason</CityNm>
          <StateAbbreviationCd>MI</StateAbbreviationCd>
          <ZIPCd>48854</ZIPCd>
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        <ForeignAccountsQuestionInd>0</ForeignAccountsQuestionInd>
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            <CityNm>Grand Cayman</CityNm>
            <CountryCd>CJ</CountryCd>
            <ForeignPostalCd>KY1-1201</ForeignPostalCd>
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        <OfficerDirTrstKeyEmplGrp>
          <PersonNm>James D Lammers</PersonNm>
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        <OfficerDirTrstKeyEmplGrp>
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        <OfficerDirTrstKeyEmplGrp>
          <PersonNm>Ariane M Dart</PersonNm>
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            <CountryCd>CJ</CountryCd>
            <ForeignPostalCd>KY1-1201</ForeignPostalCd>
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      <SupplementaryInformationGrp>
        <ContributingManagerNm>Robert C Dart</ContributingManagerNm>
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        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>Forty Carrots of Sarasota Inc</BusinessNameLine1Txt>
          </RecipientBusinessName>
          <RecipientUSAddress>
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            <StateAbbreviationCd>FL</StateAbbreviationCd>
            <ZIPCd>34239</ZIPCd>
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          <RecipientFoundationStatusTxt>501(c)(3)</RecipientFoundationStatusTxt>
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        </GrantOrContributionPdDurYrGrp>
        <GrantOrContributionPdDurYrGrp>
          <RecipientBusinessName>
            <BusinessNameLine1Txt>Olympian Foundation</BusinessNameLine1Txt>
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          <RecipientUSAddress>
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            <CityNm>Sarasota</CityNm>
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        <GrantDt>2015-03-24</GrantDt>
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        <GrantDt>2015-11-23</GrantDt>
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        <GrantDt>2016-08-23</GrantDt>
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        <GrantDt>2016-10-13</GrantDt>
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        <MediumExplanationTxt>Robert C. Dart Foundation elects under IRC Section 171 to amortize bond purchase premium. This election applies to the current tax year and all future years.</MediumExplanationTxt>
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        <CategoryOrItemTxt>Wells Fargo Savings</CategoryOrItemTxt>
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      <InvestmentsOtherGrp>
        <CategoryOrItemTxt>RBC Wealth Management</CategoryOrItemTxt>
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      <InvestmentsOtherGrp>
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</Return>