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        <InvestmentEarningsOrLossesAmt>4611</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>305010</EndYearBalanceAmt>
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        <InvestmentEarningsOrLossesAmt>1987</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>300399</EndYearBalanceAmt>
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        <OtherExpendituresAmt>12000</OtherExpendituresAmt>
        <EndYearBalanceAmt>298412</EndYearBalanceAmt>
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        <InvestmentEarningsOrLossesAmt>2071</InvestmentEarningsOrLossesAmt>
        <OtherExpendituresAmt>1169</OtherExpendituresAmt>
        <EndYearBalanceAmt>307008</EndYearBalanceAmt>
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      <BoardDesignatedBalanceEOYPct>0.00000</BoardDesignatedBalanceEOYPct>
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      <EndowmentsHeldUnrelatedOrgInd>0</EndowmentsHeldUnrelatedOrgInd>
      <EndowmentsHeldRelatedOrgInd>0</EndowmentsHeldRelatedOrgInd>
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        <OtherCostOrOtherBasisAmt>135666</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>112540</DepreciationAmt>
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      </LeaseholdImprovementsGrp>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>195197</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>195203</DepreciationAmt>
        <BookValueAmt>-6</BookValueAmt>
      </EquipmentGrp>
      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>606395</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>575249</DepreciationAmt>
        <BookValueAmt>31146</BookValueAmt>
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      <FootnoteTextInd>X</FootnoteTextInd>
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      <NetUnrealizedGainsInvstAmt>-98802</NetUnrealizedGainsInvstAmt>
      <DonatedServicesAndUseFcltsAmt>402352</DonatedServicesAndUseFcltsAmt>
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      <RevenueNotReportedAmt>1890461</RevenueNotReportedAmt>
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      <RevenueNotReportedFinclStmtAmt>7525</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>7282216</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>10804647</TotExpnsEtcAuditedFinclStmtAmt>
      <DonatedServicesUseFcltsAmt>402352</DonatedServicesUseFcltsAmt>
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      <ExpensesNotReportedAmt>1989263</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>8815384</ExpensesSubtotalAmt>
      <InvestmentExpensesNotIncld2Amt>7525</InvestmentExpensesNotIncld2Amt>
      <ExpensesNotRptFinclStmtAmt>7525</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>8822909</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART IV, LINE 2B:</FormAndLineReferenceDesc>
        <ExplanationTxt>NBTS WAS HOLDING FUNDS AS OF 12/31/14 FOR ANOTHER NON PROFIT ORGANIZATION. THE FUNDS WERE FULLY DISBURSED DURING 2015 AND NBTS IS NO LONGER HOLDING ANY FUNDS FOR THE ORGANIZATION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART V, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SOCIETY HAS PERMANENTLY RESTRICTED NET ASSETS IN WHICH THE PRINCIPAL AND ANY CURRENT CONTRIBUTIONS ARE PERMANENTLY RESTRICTED. THE BALANCE AS OF DECEMBER 31, 2015 WAS INVESTED IN BOND FUNDS. INCOME AND APPRECIATION EARNED ON THE PERMANENTLY RESTRICTED NET ASSETS ARE RESTRICTED TO SUPPORT THE COSTS OF PRODUCING AND DISTRIBUTING THE ESSENTIAL GUIDE TO BRAIN TUMORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION ACCOUNTS FOR UNCERTAINTY IN INCOME TAXES IN ACCORDANCE WITH ASC TOPIC, INCOME TAXES. THIS STANDARD CLARIFIES THE ACCOUNTING FOR UNCERTAINTY IN TAX POSITIONS AND PRESCRIBES A RECOGNITION THRESHOLD AND MEASUREMENT ATTRIBUTE FOR THE CONSOLIDATED FINANCIAL STATEMENTS REGARDING A TAX POSITION TAKEN OR EXPECTED TO BE TAKEN IN A TAX RETURN. THE ORGANIZATION HAS DETERMINED THAT THERE ARE NO UNCERTAIN TAX POSITIONS WHICH QUALIFY FOR EITHER RECOGNITION OR DISCLOSURE IN THE CONSOLIDATED FINANCIAL STATEMENTS AT DECEMBER 31, 2015.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XI, LINE 2D - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>DIRECT FUNDRAISING EXPENSES SHOWN NET ON STATEMENT OF REVENUE IN FORM 990.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART XII, LINE 2D - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>DIRECT FUNDRAISING EXPENSES SHOWN NET ON STATEMENT OF REVENUE IN FORM 990.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D PART XI LINE 2D</FormAndLineReferenceDesc>
        <ExplanationTxt>DIRECT FUNDRAISING EXPENSES SHOWN NET ON STATEMENT OF REVENUE IN FORM 990. ($ 1,586,911)</ExplanationTxt>
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        <CharitableContriEvent1Amt>837738</CharitableContriEvent1Amt>
        <OtherDirectExpensesEvent1Amt>138433</OtherDirectExpensesEvent1Amt>
        <Event2Nm>WALK - RACE FOR HOPE - DC</Event2Nm>
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        <CharitableContriEvent2Amt>1181843</CharitableContriEvent2Amt>
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        <DirectExpenseSummaryEventsAmt>1586912</DirectExpenseSummaryEventsAmt>
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        <USAddress>
          <AddressLine1Txt>111 MICHIGAN AVENUE NW</AddressLine1Txt>
          <CityNm>WASHINGTON</CityNm>
          <StateAbbreviationCd>DC</StateAbbreviationCd>
          <ZIPCd>20010</ZIPCd>
        </USAddress>
        <IRCSectionDesc>501 (C) 3</IRCSectionDesc>
        <CashGrantAmt>15000</CashGrantAmt>
        <PurposeOfGrantTxt>RESEARCH</PurposeOfGrantTxt>
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      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>MEMORIAL SLOAN KETTERING CANCER CENTER</BusinessNameLine1Txt>
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          <AddressLine1Txt>1275 YORK AVENUE BOX 701</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10065</ZIPCd>
        </USAddress>
        <IRCSectionDesc>501 (C) 3</IRCSectionDesc>
        <CashGrantAmt>250000</CashGrantAmt>
        <PurposeOfGrantTxt>RESEARCH</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>LUDWIG INSTITUTE FOR CANCER RESEARCH</BusinessNameLine1Txt>
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        <USAddress>
          <AddressLine1Txt>666 THIRD AVENUE 28TH FLOOR</AddressLine1Txt>
          <CityNm>NEW YORK</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>10017</ZIPCd>
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        <IRCSectionDesc>501 (C) 3</IRCSectionDesc>
        <CashGrantAmt>1000000</CashGrantAmt>
        <PurposeOfGrantTxt>RESEARCH</PurposeOfGrantTxt>
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      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>UC SANFRANCISCO</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>3333 CALIFORNIA STREET - SUITE 315</AddressLine1Txt>
          <CityNm>SAN FRANCISCO</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>94143</ZIPCd>
        </USAddress>
        <IRCSectionDesc>501 (C) 3</IRCSectionDesc>
        <CashGrantAmt>73765</CashGrantAmt>
        <PurposeOfGrantTxt>RESEARCH</PurposeOfGrantTxt>
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      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>MASS GENERAL HOSPITAL</BusinessNameLine1Txt>
        </RecipientBusinessName>
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          <AddressLine1Txt>55 FRUIT STREET</AddressLine1Txt>
          <CityNm>BOSTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02114</ZIPCd>
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        <IRCSectionDesc>501 (C) 3</IRCSectionDesc>
        <CashGrantAmt>75000</CashGrantAmt>
        <PurposeOfGrantTxt>RESEARCH</PurposeOfGrantTxt>
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      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>UNIVERSITY OF TEXAS MD ANDERSON CENTER</BusinessNameLine1Txt>
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          <AddressLine1Txt>1515 HOLCOMBE BOULEVARD</AddressLine1Txt>
          <CityNm>HOUSTON</CityNm>
          <StateAbbreviationCd>TX</StateAbbreviationCd>
          <ZIPCd>77030</ZIPCd>
        </USAddress>
        <CashGrantAmt>375000</CashGrantAmt>
        <PurposeOfGrantTxt>RESEARCH</PurposeOfGrantTxt>
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      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>ARIZONA STATE UNIVERSITY</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>1151 S FOREST AVE</AddressLine1Txt>
          <CityNm>TEMPE</CityNm>
          <StateAbbreviationCd>AZ</StateAbbreviationCd>
          <ZIPCd>85281</ZIPCd>
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        <IRCSectionDesc>501 (C) 3</IRCSectionDesc>
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        <PurposeOfGrantTxt>RESEARCH</PurposeOfGrantTxt>
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      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>DUKE UNIVERSITY</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>2127 CAMPUS DRIVE</AddressLine1Txt>
          <CityNm>DURHAM</CityNm>
          <StateAbbreviationCd>NC</StateAbbreviationCd>
          <ZIPCd>27708</ZIPCd>
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        <IRCSectionDesc>501 (C) 3</IRCSectionDesc>
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      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>MAYO CLINIC</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>200 FIRST STREET SW</AddressLine1Txt>
          <CityNm>ROCHESTER</CityNm>
          <StateAbbreviationCd>MN</StateAbbreviationCd>
          <ZIPCd>55905</ZIPCd>
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        <CashGrantAmt>150000</CashGrantAmt>
        <PurposeOfGrantTxt>RESEARCH</PurposeOfGrantTxt>
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      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>WASHINGTON UNIVERSITY</BusinessNameLine1Txt>
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        <USAddress>
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          <CityNm>ST LOUIS</CityNm>
          <StateAbbreviationCd>MO</StateAbbreviationCd>
          <ZIPCd>631101010</ZIPCd>
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        <ExplanationTxt>THE NATIONAL BRAIN TUMOR SOCIETY (NBTS) AWARDS RESEARCH GRANTS THAT ALSO INCLUDE MILESTONE CHECK-INS AND REVIEWS, THROUGH PROGRAM INITIATIVES THAT HAVE A SPECIFICALLY DEFINED AREA OF FOCUS AND IN OPEN REQUESTS FOR APPLICATIONS (RFA). THE NATIONAL BRAIN TUMOR SOCIETY'S RESEARCH GRANT APPLICATION REVIEW FOR RFAS IS BUILT ON THE GOLD STANDARD SET BY THE NATIONAL INSTITUTES OF HEALTH. MEMBERS OF THE NBTS SCIENTIFIC ADVISORY COUNCIL (SAC), LED BY THE CHAIR AND VICE-CHAIR, OVERSEE THE REVIEW PROCESS. EXPERT REVIEWERS ARE ASSIGNED TO EACH APPLICATION AND RESPONSIBLE FOR RIGOROUS REVIEW AND SCORING OF EACH BASED ON SCIENTIFIC MERIT. STAFF AND BOARD DISCUSS WITH THE SAC HOW THE RESEARCH FITS INTO THE OVERALL GOALS OF THE PROGRAM AND FINAL PROJECT GRANT AWARD(S) ARE SELECTED. ONCE A TRADITIONAL RFA GRANT IS AWARDED, PROGRESS REPORTS ON DEFINED MILESTONES ARE SUBMITTED EVERY SIX MONTHS IN WRITING AND DISCUSSED IN PERSON WITH THE REVIEWERS TO BE SURE DELIVERABLES ARE BEING MET. GRANTS GIVEN THROUGH NATIONAL BRAIN TUMOR SOCIETY'S LARGER, INTEGRATED PROGRAM INITIATIVES LOOK AT THE BEST RESEARCH BEING DONE TO MEET THE NEEDS OF THE PROGRAM. CHOSEN RESEARCHERS SUBMIT THEIR PLANNED WORK WHICH THEN FOLLOWS THE PROCESS OUTLINE ABOVE FOR REVIEW. ONCE FULLY VETTED AND APPROVED IN THIS PROCESS, THEIR WORK AND MILESTONES ARE REVIEWED ANNUALLY WIH THE PROGRAM INITIATIVE'S SCIENTIFIC DIRECTOR AND WITH THE STRATEGIC SCIENTIFIC ADVISORY COUNCIL DEDICATED TO THE SPECIFIC INITIATIVE.</ExplanationTxt>
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        <PersonNm>SALLY DAVIS</PersonNm>
        <TitleTxt>CEO (LEFT OCT 2015)</TitleTxt>
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        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>3830</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>15612</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>215362</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 4A</FormAndLineReferenceDesc>
        <ExplanationTxt>SALLY DAVIS RECEIVED A SEVERANCE PAYMENT OF $9,615 DURING 2015.</ExplanationTxt>
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        <MethodOfDeterminingRevenuesTxt>COST BASIS</MethodOfDeterminingRevenuesTxt>
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      <OtherNonCashContriTableGrp>
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        <Desc>RAFFLE PRIZES</Desc>
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        <MethodOfDeterminingRevenuesTxt>COST VALUE</MethodOfDeterminingRevenuesTxt>
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        <ExplanationTxt>NATIONAL BRAIN TUMOR SOCIETY, INC. IS FILING AN AMENDED RETURN DUE TO ADDITIONAL ADJUSTING ENTRIES THAT WERE POSTED, WHICH IMPACTED THE STATEMENT OF REVENUE, STATEMENT OF FUNCTIONAL EXPENSES, AND BALANCE SHEET.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11</FormAndLineReferenceDesc>
        <ExplanationTxt>A COPY OF THE FEDERAL FORM 990 IS EMAILED TO THE BOARD OF DIRECTORS FOR REVIEW PRIOR TO FILING.</ExplanationTxt>
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      <SupplementalInformationDetail>
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      <SupplementalInformationDetail>
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        <ExplanationTxt>THE FINANCIAL STATEMENTS ARE AVAILABLE ON THE SOCIETY'S WEBSITE. ALL OTHER DOCUMENTS ARE AVAILABLE UPON REQUEST.</ExplanationTxt>
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        <EndOfYearAssetsAmt>0</EndOfYearAssetsAmt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>NATIONAL BRAIN TUMOR SOCIETY INC</BusinessNameLine1Txt>
        </DirectControllingEntityName>
      </IdDisregardedEntitiesGrp>
    </IRS990ScheduleR>
  </ReturnData>
</Return>