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      <OtherExpensesGrp>
        <Desc>PROF. DEVELOPMENT</Desc>
        <TotalAmt>230</TotalAmt>
        <ProgramServicesAmt>230</ProgramServicesAmt>
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      <OtherExpensesGrp>
        <Desc>INDIRECT COST ALLOC.</Desc>
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        <ManagementAndGeneralAmt>-73597</ManagementAndGeneralAmt>
        <FundraisingAmt>10514</FundraisingAmt>
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        <ProgramServicesAmt>7899222</ProgramServicesAmt>
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        <FundraisingAmt>10520</FundraisingAmt>
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        <EOYAmt>585834</EOYAmt>
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        <EOYAmt>5087504</EOYAmt>
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      <PledgesAndGrantsReceivableGrp>
        <BOYAmt>9661242</BOYAmt>
        <EOYAmt>9717798</EOYAmt>
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      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>179022</BOYAmt>
        <EOYAmt>846870</EOYAmt>
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      <LandBldgEquipCostOrOtherBssAmt>2072</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>345</LandBldgEquipAccumDeprecAmt>
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        <BOYAmt>0</BOYAmt>
        <EOYAmt>1727</EOYAmt>
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        <BOYAmt>2250</BOYAmt>
        <EOYAmt>2250</EOYAmt>
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      <TotalAssetsGrp>
        <BOYAmt>14201124</BOYAmt>
        <EOYAmt>16241983</EOYAmt>
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      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>39730</BOYAmt>
        <EOYAmt>66771</EOYAmt>
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      <DeferredRevenueGrp>
        <BOYAmt>300700</BOYAmt>
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        <BOYAmt>0</BOYAmt>
        <EOYAmt>24883</EOYAmt>
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      <TotalLiabilitiesGrp>
        <BOYAmt>340430</BOYAmt>
        <EOYAmt>284224</EOYAmt>
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      <OrganizationFollowsSFAS117Ind>X</OrganizationFollowsSFAS117Ind>
      <UnrestrictedNetAssetsGrp>
        <BOYAmt>387468</BOYAmt>
        <EOYAmt>674258</EOYAmt>
      </UnrestrictedNetAssetsGrp>
      <TemporarilyRstrNetAssetsGrp>
        <BOYAmt>13473226</BOYAmt>
        <EOYAmt>15283501</EOYAmt>
      </TemporarilyRstrNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>13860694</BOYAmt>
        <EOYAmt>15957759</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>14201124</BOYAmt>
        <EOYAmt>16241983</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>2097065</ReconcilationRevenueExpnssAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>1</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>0</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
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    <IRS990ScheduleA documentId="RetDoc1039100001">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>216647</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>13390695</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>9595377</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>10204963</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>9927823</CurrentTaxYearAmt>
        <TotalAmt>43335505</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>216647</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>13390695</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>9595377</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>10204963</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>9927823</CurrentTaxYearAmt>
        <TotalAmt>43335505</TotalAmt>
      </TotalCalendarYear170Grp>
      <SubstantialContributorsTotAmt>379182</SubstantialContributorsTotAmt>
      <PublicSupportTotal170Amt>42956323</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>1</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>662</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>3616</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>579</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1095</CurrentTaxYearAmt>
        <TotalAmt>5953</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <OtherIncome170Grp>
        <CurrentTaxYearMinus3YearsAmt>25</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>2577</CurrentTaxYearMinus2YearsAmt>
        <TotalAmt>2602</TotalAmt>
      </OtherIncome170Grp>
      <TotalSupportAmt>43344060</TotalSupportAmt>
      <GrossReceiptsRltdActivitiesAmt>199707</GrossReceiptsRltdActivitiesAmt>
      <First5Years170Ind>X</First5Years170Ind>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>SCHEDULE A, PART II, LINE 10, EXPLANATION OF OTHER INCOME:</FormAndLineReferenceDesc>
        <ExplanationTxt>MISCELLANEOUS INCOME - 2011 AMOUNT: $ 0. 2012 AMOUNT: $ 25. 2013 AMOUNT: $ 0. 2014 AMOUNT: $ 0. 2015 AMOUNT: $ 0. FUNDRAISING SALES - 2011 AMOUNT: $ 0. 2012 AMOUNT: $ 0. 2013 AMOUNT: $ 2,577. 2014 AMOUNT: $ 0. 2015 AMOUNT: $ 0.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="RetDoc1234500001">
      <ContributorInformationGrp>
        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
      </ContributorInformationGrp>
    </IRS990ScheduleB>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>2072</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>345</DepreciationAmt>
        <BookValueAmt>1727</BookValueAmt>
      </EquipmentGrp>
      <TotalBookValueLandBuildingsAmt>1727</TotalBookValueLandBuildingsAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>DUE TO CHOP</Desc>
        <Amt>24883</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>24883</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>10083390</TotalRevEtcAuditedFinclStmtAmt>
      <DonatedServicesAndUseFcltsAmt>47042</DonatedServicesAndUseFcltsAmt>
      <RevenueNotReportedAmt>47042</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>10036348</RevenueSubtotalAmt>
      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>10036348</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>7986325</TotExpnsEtcAuditedFinclStmtAmt>
      <DonatedServicesUseFcltsAmt>47042</DonatedServicesUseFcltsAmt>
      <ExpensesNotReportedAmt>47042</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>7939283</ExpensesSubtotalAmt>
      <ExpensesNotRptFinclStmtAmt>0</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>7939283</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FOUNDATION ACCOUNTS FOR UNCERTAINTY IN INCOME TAXES RECOGNIZED IN THE FINANCIAL STATEMENTS USING A RECOGNITION THRESHOLD OF MORE LIKELY THAN NOT AS TO WHETHER THE UNCERTAINTY WILL BE SUSTAINED UPON EXAMINATION BY THE APPROPRIATE TAXING AUTHORITY. MEASUREMENT OF THE TAX UNCERTAINTY OCCURS IF THE RECOGNITION THRESHOLD HAS BEEN MET. MANAGEMENT DETERMINED THERE WERE NO TAX UNCERTAINTIES THAT MET THE RECOGNITION THRESHOLD.</ExplanationTxt>
      </SupplementalInformationDetail>
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    <IRS990ScheduleF documentId="RetDoc1040500001">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>EAST ASIA AND THE PACIFIC - AUSTRALIA, BRUNEI, BURMA, CAMBODIA,</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>GRANTMAKING</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>197300</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>NORTH AMERICA - CANADA AND MEXICO, BUT NOT THE UNITED STATES</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>GRANTMAKING</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>377500</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>EUROPE (INCLUDING ICELAND &amp; GREENLAND) - ALBANIA, ANDORRA, AUSTRIA, BELGIUM</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>GRANTMAKING</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>12200</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>MIDDLE EAST AND NORTH AFRICA - ALGERIA, BAHRAIN, DJIBOUTI, EGYPT,</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>GRANTMAKING</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>1000</RegionTotalExpendituresAmt>
      </AccountActivitiesOutsideUSGrp>
      <SubtotalOfficesCnt>0</SubtotalOfficesCnt>
      <SubtotalEmployeesCnt>0</SubtotalEmployeesCnt>
      <ContinutationTotalOfficeCnt>0</ContinutationTotalOfficeCnt>
      <ContinutationTotalEmployeeCnt>0</ContinutationTotalEmployeeCnt>
      <TotalOfficeCnt>0</TotalOfficeCnt>
      <TotalEmployeeCnt>0</TotalEmployeeCnt>
      <SubtotalSpentAmt>588000</SubtotalSpentAmt>
      <ContinuationSpentAmt>0</ContinuationSpentAmt>
      <TotalSpentAmt>588000</TotalSpentAmt>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>EAST ASIA AND THE PACIFIC</RegionTxt>
        <PurposeOfGrantTxt>TO CURE CHILDREN AND IMPROVE CAPACITY &amp; QUALITY OF TREATMENT.</PurposeOfGrantTxt>
        <CashGrantAmt>197300</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CHECK</MannerOfCashDisbursementTxt>
      </GrantsToOrgOutsideUSGrp>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>NORTH AMERICA</RegionTxt>
        <PurposeOfGrantTxt>TO CURE CHILDREN AND IMPROVE CAPACITY &amp; QUALITY OF TREATMENT.</PurposeOfGrantTxt>
        <CashGrantAmt>377500</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CHECK</MannerOfCashDisbursementTxt>
      </GrantsToOrgOutsideUSGrp>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>EUROPE (INCLUDING ICELAND &amp; GREENLAND)</RegionTxt>
        <PurposeOfGrantTxt>TO CURE CHILDREN AND IMPROVE CAPACITY &amp; QUALITY OF TREATMENT.</PurposeOfGrantTxt>
        <CashGrantAmt>12200</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CHECK</MannerOfCashDisbursementTxt>
      </GrantsToOrgOutsideUSGrp>
      <Total501c3OrgCnt>1</Total501c3OrgCnt>
      <TotalOtherOrgCnt>0</TotalOtherOrgCnt>
      <TransferToForeignCorpInd>0</TransferToForeignCorpInd>
      <InterestInForeignTrustInd>0</InterestInForeignTrustInd>
      <ForeignCorpOwnershipInd>0</ForeignCorpOwnershipInd>
      <PassiveForeignInvestmestCoInd>0</PassiveForeignInvestmestCoInd>
      <ForeignPartnershipInd>0</ForeignPartnershipInd>
      <BoycottCountriesInd>0</BoycottCountriesInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FOUNDATION RECEIVES A FULL ACCOUNTING OF GRANTEE EXPENDITURES ON AT LEAST AN ANNUAL BASIS, AND REQUIRES GRANTEE ORGANIZATIONS TO RETAIN ALL FINANCIAL RECORDS, SUPPORTING DOCUMENTS, RESEARCH DATA AND OTHER PERTINENT RECORDS FOR AT LEAST THREE YEARS FOLLOWING THE DATE OF SUBMISSION OF A FINAL EXPENDITURE REPORT. IN ADDITION, THE FOUNDATION CROSS-REFERENCES GRANTEE ORGANIZATIONS WITH THE OFFICE OF FOREIGN ASSETS CONTROL'S SPECIFICIALLY DESIGNATED NATIONALS AND BLOCKED PERSONS LIST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 3:</FormAndLineReferenceDesc>
        <ExplanationTxt>IN ACCORDANCE WITH IRS INSTRUCTIONS, ALL AMOUNTS REPORTED IN PARTS I AND II OF SCHEDULE F ARE REPORTED USING THE ACCRUAL BASIS OF ACCOUNTING, THE SAME METHOD OF ACCOUNTING USED IN THE FINANCIAL STATEMENTS.</ExplanationTxt>
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      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>CHILDREN'S HOSPITAL OF PHILADELPHIA - RESEARCH INSTITUTE</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>3615 CIVIC CENTER BOULEVARD</AddressLine1Txt>
          <CityNm>PHILADELPHIA</CityNm>
          <StateAbbreviationCd>PA</StateAbbreviationCd>
          <ZIPCd>19104</ZIPCd>
        </USAddress>
        <RecipientEIN>231352166</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>6377777</CashGrantAmt>
        <PurposeOfGrantTxt>NEUROBLASTMA, EVERYCHILD, GROUP MEETING, COOKIES FOR KIDS, PCR &amp; HIGH IMPACT INITIATIVE.</PurposeOfGrantTxt>
      </RecipientTable>
      <Total501c3OrgCnt>1</Total501c3OrgCnt>
      <TotalOtherOrgCnt>0</TotalOtherOrgCnt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FOUNDATION RECEIVES A FULL ACCOUNTING OF GRANTEE EXPENDITURES ON AT LEAST AN ANNUAL BASIS, AND REQUIRES GRANTEE ORGANIZATIONS TO RETAIN ALL FINANCIAL RECORDS, SUPPORTING DOCUMENTS, RESEARCH DATA AND OTHER PERTINENT RECORDS FOR AT LEAST THREE YEARS FOLLOWING THE DATE OF SUBMISSION OF A FINAL EXPENDITURE REPORT.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MEMBERS SHALL CONSIST OF THE VOTING MEMBERS OF THE EXECUTIVE COMMITTEE OF THE CHILDREN'S ONCOLOGY GROUP.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>EACH MEMBER SHALL BE ENTITLED TO ONE VOTE ON EACH MATTER PRESENTED TO THE MEMBERS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MEMBERS SHALL HAVE THE FOLLOWING EXCLUSIVE POWERS: (A) ADOPT AND AMEND STATEMENTS OF MISSION, PHILOSOPHY OR PURPOSE; (B) AMEND THE THE FOUNDATION'S ARTICLES OF INCORPORATION AND BYLAWS; (C) ELECT AND REMOVE, WITH OR WITHOUT CAUSE, THE DIRECTORS OF THE FOUNDATION'S.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 8B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FOUNDATION DOES NOT HAVE THE INSTITUTIONAL CAPACITY FOR SUCH A PROCESS TO OCCUR, SO THE BOARD OF DIRECTORS FUNCTION ON THEIR OWN WITHOUT A SECONDARY COMMITTEE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11</FormAndLineReferenceDesc>
        <ExplanationTxt>UNDER THE DIRECTION OF THE BOARD OF DIRECTOR'S PRESIDENT, THE FOUNDATION CIRCULATES THE DRAFT VERSION OF THE FEDERAL FORM 990 FOR BOARD OF DIRECTORS' REVIEW BY EMAIL CORRESPONDENCE, AND THEN FORMALLY AT OUR SEMI-ANNUAL MEETING PRIOR TO FILING WITH THE INTERNAL REVENUE SERVICE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CONFLICT OF INTEREST POLICY IS REVIEWED REGULARLY AT THE FOUNDATION'S BOARD MEETINGS. DURING THE INTERIM OF A MEETING, CONFERENCE CALLS AND EMAIL COMMUNICATIONS ARE UTILIZED FOR ANY INCIDENTAL CONCERNS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FOUNDATION POSTS THE FEDERAL FORM 990, COI POLICY, AND OTHER GOVERNING DOCUMENTS ON OUR WEBSITE: HTTP://COG-FOUNDATION.ORG/DOCUMENTS.PHP.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>CONSULTING FEES: PROGRAM SERVICE EXPENSES 437,201. MANAGEMENT AND GENERAL EXPENSES 64,095. FUNDRAISING EXPENSES 0. TOTAL EXPENSES 501,296. RESEARCH: PROGRAM SERVICE EXPENSES 312,484. MANAGEMENT AND GENERAL EXPENSES 0. FUNDRAISING EXPENSES 0. TOTAL EXPENSES 312,484.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>