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        <CurrentTaxYearAmt>4476</CurrentTaxYearAmt>
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        <CurrentTaxYearMinus4YearsAmt>25</CurrentTaxYearMinus4YearsAmt>
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      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>Schedule A, Part II, Line 10, Explanation of Other Income:</FormAndLineReferenceDesc>
        <ExplanationTxt>Miscellaneous income - 2012 Amount: $ 25. Fundraising sales - 2013 Amount: $ 2,577.</ExplanationTxt>
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        </ContributorBusinessName>
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          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
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        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
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        <OtherCostOrOtherBasisAmt>2072</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>1036</DepreciationAmt>
        <BookValueAmt>1036</BookValueAmt>
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      <TotalBookValueLandBuildingsAmt>1036</TotalBookValueLandBuildingsAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>9446667</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>-549</NetUnrealizedGainsInvstAmt>
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      <RevenueNotReportedAmt>36565</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>9410102</RevenueSubtotalAmt>
      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>9410102</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>8344756</TotExpnsEtcAuditedFinclStmtAmt>
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      <ExpensesNotReportedAmt>37114</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>8307642</ExpensesSubtotalAmt>
      <ExpensesNotRptFinclStmtAmt>0</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>8307642</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.</ExplanationTxt>
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    </IRS990ScheduleD>
    <IRS990ScheduleF documentId="RetDoc1040500001">
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        <RegionTxt>East Asia and the Pacific - Australia, Brunei, Burma, Cambodia,</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>Grantmaking</TypeOfActivitiesConductedTxt>
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      <AccountActivitiesOutsideUSGrp>
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        <OfficesCnt>0</OfficesCnt>
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        <TypeOfActivitiesConductedTxt>Grantmaking</TypeOfActivitiesConductedTxt>
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      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>Europe (Including Iceland &amp; Greenland) - Albania, Andorra, Austria, Belgium</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>Grantmaking</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>47000</RegionTotalExpendituresAmt>
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      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>Middle East and North Africa - Algeria, Bahrain, Djibouti, Egypt,</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>Grantmaking</TypeOfActivitiesConductedTxt>
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      <SubtotalOfficesCnt>0</SubtotalOfficesCnt>
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      <ContinutationTotalEmployeeCnt>0</ContinutationTotalEmployeeCnt>
      <TotalOfficeCnt>0</TotalOfficeCnt>
      <TotalEmployeeCnt>0</TotalEmployeeCnt>
      <SubtotalSpentAmt>532000</SubtotalSpentAmt>
      <ContinuationSpentAmt>0</ContinuationSpentAmt>
      <TotalSpentAmt>532000</TotalSpentAmt>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>East Asia and the Pacific - Australia, Brunei, Burma, Cambodia,</RegionTxt>
        <PurposeOfGrantTxt>To cure children and improve capacity of quality and treatment</PurposeOfGrantTxt>
        <CashGrantAmt>153000</CashGrantAmt>
        <MannerOfCashDisbursementTxt>Check</MannerOfCashDisbursementTxt>
      </GrantsToOrgOutsideUSGrp>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>North America - Canada and Mexico, but not the United States</RegionTxt>
        <PurposeOfGrantTxt>To cure children and improve capacity of quality and treatment</PurposeOfGrantTxt>
        <CashGrantAmt>331000</CashGrantAmt>
        <MannerOfCashDisbursementTxt>Check</MannerOfCashDisbursementTxt>
      </GrantsToOrgOutsideUSGrp>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>Europe (Including Iceland &amp; Greenland) - Albania, Andorra, Austria, Belgium</RegionTxt>
        <PurposeOfGrantTxt>To cure children and improve capacity of quality and treatment</PurposeOfGrantTxt>
        <CashGrantAmt>47000</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>
      </SupplementalInformationDetail>
    </IRS990ScheduleF>
    <IRS990ScheduleI documentId="RetDoc1041900001">
      <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>5158900</CashGrantAmt>
        <PurposeOfGrantTxt>Per-Case Reimbursement, Project:EveryChild.</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>The Research Institute at Nationwide Children's Hospital</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>700 Childrens Drive</AddressLine1Txt>
          <CityNm>Columbus</CityNm>
          <StateAbbreviationCd>OH</StateAbbreviationCd>
          <ZIPCd>43205</ZIPCd>
        </USAddress>
        <RecipientEIN>316056230</RecipientEIN>
        <IRCSectionDesc>501(c)(3)</IRCSectionDesc>
        <CashGrantAmt>1256060</CashGrantAmt>
        <PurposeOfGrantTxt>Project:EveryChild, Reference Labs.</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>University of Florida</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>219 Grinter Hall Box 115500</AddressLine1Txt>
          <CityNm>Gainesville</CityNm>
          <StateAbbreviationCd>FL</StateAbbreviationCd>
          <ZIPCd>32611</ZIPCd>
        </USAddress>
        <RecipientEIN>592729133</RecipientEIN>
        <IRCSectionDesc>501(c)(3)</IRCSectionDesc>
        <CashGrantAmt>37500</CashGrantAmt>
        <PurposeOfGrantTxt>To cure children and improve capacity of quality and treatments.</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>University of Chicago</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>6030 S Ellis Avenue</AddressLine1Txt>
          <CityNm>Chicago</CityNm>
          <StateAbbreviationCd>IL</StateAbbreviationCd>
          <ZIPCd>60637</ZIPCd>
        </USAddress>
        <RecipientEIN>366056201</RecipientEIN>
        <IRCSectionDesc>501(c)(3)</IRCSectionDesc>
        <CashGrantAmt>72000</CashGrantAmt>
        <PurposeOfGrantTxt>To cure children and improve capacity of quality and treatments.</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>Arkansas Children's Research Institute</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>1 Childrens Way</AddressLine1Txt>
          <CityNm>Little Rock</CityNm>
          <StateAbbreviationCd>AK</StateAbbreviationCd>
          <ZIPCd>72202</ZIPCd>
        </USAddress>
        <RecipientEIN>710694931</RecipientEIN>
        <IRCSectionDesc>501(c)(3)</IRCSectionDesc>
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        <PurposeOfGrantTxt>To cure children and improve capacity of quality and treatments.</PurposeOfGrantTxt>
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      <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 11b</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. In connection with any actual or possible conflict of interest, an interested person must disclose the existence of the financial interest and disclose all material facts to the Directors considering the proposed transaction or arrangement. After disclosure of the financial interest and all material facts, and after any presentation by the interested person, the interested person shall leave the Board of Directors meeting while the determination of a conflict of interest is discussed and voted upon. The remaining Directors shall decide if a conflict of interest exists.</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 its website: http://cog-foundation.org/documents.php.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part IX, line 11g</FormAndLineReferenceDesc>
        <ExplanationTxt>Consulting fees: Program service expenses 586,554. Management and general expenses 132,147. Fundraising expenses 0. Total expenses 718,701. Research: Program service expenses 274,961. Management and general expenses 0. Fundraising expenses 0. Total expenses 274,961.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
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</Return>