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      <Form990PartVIISectionAGrp>
        <PersonNm>JAMES C GROTTA</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>STEPHEN L HAUSER</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>FRANCES JENSEN</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>RALPH R LESILE</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>THABELE LESILE-MAZWI</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>RONALD PETERSEN</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>ALYX B PORTER</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>ALFREDO QUINONES-HINOJOSA</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>SEAN SANSIVERI</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>MARY E POST</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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          <BusinessName>
            <BusinessNameLine1Txt>Yakkety Yak</BusinessNameLine1Txt>
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      <ContractorCompensationGrp>
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          <BusinessName>
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          <USAddress>
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        <ExclusionAmt>419159</ExclusionAmt>
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        <ExclusionAmt>0</ExclusionAmt>
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        <ExclusionAmt>0</ExclusionAmt>
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        <PersonalAmt>0</PersonalAmt>
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        <PersonalAmt>0</PersonalAmt>
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      <RentalIncomeOrLossGrp>
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        <PersonalAmt>0</PersonalAmt>
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      <NetRentalIncomeOrLossGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>0</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>0</ExclusionAmt>
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      <LessCostOthBasisSalesExpnssGrp>
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      <GainOrLossGrp>
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      <NetGainOrLossInvestmentsGrp>
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        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
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      <NetIncmFromFundraisingEvtGrp>
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      <GamingGrossIncomeAmt>0</GamingGrossIncomeAmt>
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        <RelatedOrExemptFuncIncomeAmt>0</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
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        <BusinessCd>900099</BusinessCd>
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        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>2269</ExclusionAmt>
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      <MiscellaneousRevenueGrp>
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        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
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        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
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      <GrantsToDomesticOrgsGrp>
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      <GrantsToDomesticIndividualsGrp>
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        <ProgramServicesAmt>2000</ProgramServicesAmt>
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        <ProgramServicesAmt>0</ProgramServicesAmt>
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        <ProgramServicesAmt>131432</ProgramServicesAmt>
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        <ProgramServicesAmt>202594</ProgramServicesAmt>
        <ManagementAndGeneralAmt>272310</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>22232</ProgramServicesAmt>
        <ManagementAndGeneralAmt>29883</ManagementAndGeneralAmt>
        <FundraisingAmt>18775</FundraisingAmt>
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        <ProgramServicesAmt>27783</ProgramServicesAmt>
        <ManagementAndGeneralAmt>37344</ManagementAndGeneralAmt>
        <FundraisingAmt>23462</FundraisingAmt>
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      <PayrollTaxesGrp>
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        <ProgramServicesAmt>19938</ProgramServicesAmt>
        <ManagementAndGeneralAmt>26798</ManagementAndGeneralAmt>
        <FundraisingAmt>16837</FundraisingAmt>
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        <ProgramServicesAmt>15661</ProgramServicesAmt>
        <ManagementAndGeneralAmt>19062</ManagementAndGeneralAmt>
        <FundraisingAmt>13127</FundraisingAmt>
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      <FeesForServicesLegalGrp>
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        <ProgramServicesAmt>7910</ProgramServicesAmt>
        <ManagementAndGeneralAmt>15926</ManagementAndGeneralAmt>
        <FundraisingAmt>4940</FundraisingAmt>
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      <FeesForServicesAccountingGrp>
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        <ProgramServicesAmt>38744</ProgramServicesAmt>
        <ManagementAndGeneralAmt>59244</ManagementAndGeneralAmt>
        <FundraisingAmt>32476</FundraisingAmt>
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      <FeesForServicesLobbyingGrp>
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        <ProgramServicesAmt>0</ProgramServicesAmt>
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        <FundraisingAmt>0</FundraisingAmt>
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      <FeesForServicesProfFundraising>
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        <FundraisingAmt>41250</FundraisingAmt>
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      <FeesForSrvcInvstMgmntFeesGrp>
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        <ManagementAndGeneralAmt>8762</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>420150</ProgramServicesAmt>
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        <FundraisingAmt>47147</FundraisingAmt>
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        <ProgramServicesAmt>56560</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>2333</FundraisingAmt>
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        <ProgramServicesAmt>28320</ProgramServicesAmt>
        <ManagementAndGeneralAmt>47506</ManagementAndGeneralAmt>
        <FundraisingAmt>121294</FundraisingAmt>
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      <InformationTechnologyGrp>
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        <ProgramServicesAmt>14527</ProgramServicesAmt>
        <ManagementAndGeneralAmt>17686</ManagementAndGeneralAmt>
        <FundraisingAmt>12177</FundraisingAmt>
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        <ProgramServicesAmt>0</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
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        <ProgramServicesAmt>12308</ProgramServicesAmt>
        <ManagementAndGeneralAmt>17075</ManagementAndGeneralAmt>
        <FundraisingAmt>10317</FundraisingAmt>
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      <TravelGrp>
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        <ProgramServicesAmt>15833</ProgramServicesAmt>
        <ManagementAndGeneralAmt>15147</ManagementAndGeneralAmt>
        <FundraisingAmt>17318</FundraisingAmt>
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        <ProgramServicesAmt>11125</ProgramServicesAmt>
        <ManagementAndGeneralAmt>12151</ManagementAndGeneralAmt>
        <FundraisingAmt>8551</FundraisingAmt>
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        <FundraisingAmt>0</FundraisingAmt>
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        <ProgramServicesAmt>0</ProgramServicesAmt>
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        <FundraisingAmt>4040</FundraisingAmt>
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        <ManagementAndGeneralAmt>871713</ManagementAndGeneralAmt>
        <FundraisingAmt>656125</FundraisingAmt>
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        <EOYAmt>1007855</EOYAmt>
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        <EOYAmt>5128619</EOYAmt>
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        <EOYAmt>4671369</EOYAmt>
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      <AccountsReceivableGrp>
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        <EOYAmt>228313</EOYAmt>
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        <EOYAmt>0</EOYAmt>
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      <RcvblFromDisqualifiedPrsnGrp>
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        <EOYAmt>0</EOYAmt>
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      <OthNotesLoansReceivableNetGrp>
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        <EOYAmt>0</EOYAmt>
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      <InventoriesForSaleOrUseGrp>
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        <EOYAmt>0</EOYAmt>
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        <EOYAmt>61532</EOYAmt>
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      <LandBldgEquipBasisNetGrp>
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      </LandBldgEquipBasisNetGrp>
      <InvestmentsPubTradedSecGrp>
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        <EOYAmt>10820854</EOYAmt>
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      <InvestmentsOtherSecuritiesGrp>
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        <EOYAmt>0</EOYAmt>
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      <InvestmentsProgramRelatedGrp>
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        <EOYAmt>0</EOYAmt>
      </InvestmentsProgramRelatedGrp>
      <IntangibleAssetsGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </IntangibleAssetsGrp>
      <OtherAssetsTotalGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </OtherAssetsTotalGrp>
      <TotalAssetsGrp>
        <BOYAmt>16866097</BOYAmt>
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          <AddressLine1Txt>3910 Keswick Road</AddressLine1Txt>
          <AddressLine2Txt>N4327-B</AddressLine2Txt>
          <CityNm>Baltimore</CityNm>
          <StateAbbreviationCd>MD</StateAbbreviationCd>
          <ZIPCd>21211</ZIPCd>
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        <RecipientEIN>520595110</RecipientEIN>
        <IRCSectionDesc>501c3</IRCSectionDesc>
        <CashGrantAmt>16378</CashGrantAmt>
        <PurposeOfGrantTxt>Funding grant for research in Alzheimer's and related neurodegenerative disorders</PurposeOfGrantTxt>
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        <FormAndLineReferenceDesc>Schedule I, Part I, Line 2</FormAndLineReferenceDesc>
        <ExplanationTxt>The American Brain Foundation's (ABF) Next Generation Research Grants program funds Clinical Research Training Scholarships (CRTS) and Clinician Scientist Development Awards (CSDA) offered to neurologists and clinical investigators interested in academic careers in clinical research on brain diseases and disorders. More than 80 percent of the recipients of these ABF-funded awards have gone on to receive funding from NIH, enabling a lifetime of research on brain disease. The ABF awards grant funding to the research programs of the American Academy of Neurology, the National Multiple Sclerosis Society, and other institutions who regrant funds to early career investigators through their institutions. The administering institutions report progress annually back to the ABF.</ExplanationTxt>
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        <FormAndLineReferenceDesc>Schedule I, Part II, Line 1</FormAndLineReferenceDesc>
        <ExplanationTxt>Further elaboration for the $2.261M to the AANI in 2023: $2.090M of these funds were distributed to fulfill grants in the following categories: Clinical Research Training Scholarship in ALS, Richard Olney Clinician Scientist Development Award in ALS, McKnight Clinical Translational Research Scholarship in Cognitive Aging and Age-Related Memory Loss, Susan S. Spencer, MD Clinical Research Training Scholarship in Epilepsy, Clinical Research Training Scholarship in Frontotemporal Degeneration, Clinical Research Training Scholarship in Migraine, Clinical Research Training Scholarship in Neurodisparities, Clinical Research Training Scholarship in Neuromuscular Disease, Clinical Research Training Scholarship in Parkinson's Disease, Clinical Research Training Scholarship Peripheral Neuropathy, Lawrence M. Brass Stroke Research Award. $171K of the funds to AANI were distributed to neurologists for Scientific Awards in the following categories: Potamkin Prize for Research in Pick's, Alzheimer's, and Related Diseases, Sheila Essey Award: An Award for ALS Research, Neuro-infectious Disease Award, Alliance Awards: Founders, Alliance Awards: S. Weir Mitchell, Dreifuss-Penry Epilepsy Award, Michael S. Pessin Stroke Leadership Prize, Movement Disorders Research Award, Neuro-Oncology Scientific Award, Neuro-Oncology Investigator Award, Norman Geschwind Prize in Behavioral Neurology, Sleep Science Award, Wayne A. Hening Sleep Medicine Investigator Award, Bruce S. Schoenberg Award, Cheryl A. Jay Lectureship, and Kenneth M. Viste Jr, MD, Patient Advocate of the Year Award.</ExplanationTxt>
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        <FormAndLineReferenceDesc>Schedule J, Part I, Line 3</FormAndLineReferenceDesc>
        <ExplanationTxt>The American Brain Foundation leases employees with American Academy of Neurology (AAN) through a contractual arrangement by which AAN's employees are leased to ABF. This arrangement included, as of 2023, the ABF's Executive Director being leased through AAN. The ABF's Board of Directors is responsible for hiring and setting the compensation for the Executive Director. The Board employs procedures (use of independent consultant, compensation survey and no involvement of persons with conflicts of interests) and last set compensation amounts in 2023.</ExplanationTxt>
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        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, Line 4</FormAndLineReferenceDesc>
        <ExplanationTxt>The American Brain Foundation revised language about ex-officio, non-voting members of its board of directors and the voting rights of these positions. Additionally, the American Brain Foundation updates its bylaws to include the position of Chair Elect, which will perform duties as assigned by the Chair or Board of Directors and prepare to become Chair immediately following the last term of the current Chair.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>The CFO undertook extensive review of the draft form 990 as initially prepared by the Staff Accountant. Their review was thereafter augmented by exempt organizations Tax/Legal Counsel. This Form 990 was then presented to the Audit Committee by the CFO and other members of the management team. The Audit Committee Reviewed the Form 990 and identified any agreed upon changes to be made. In line with Minnesota Law, the final Form 990 is presented to and approved by the Board of directors. The Form 990 is filed subsequent to this process.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>The Foundation's conflict of interest policy covers individuals serving as an officer, director, committee member, or positions of official responsibility or leadership. All covered are required to complete a relationship disclosure statement annually, or as changed in personal circumstances occur. The statements are reviewed and actions determined according to the Foundation's hierarchy based on position or by the Executive Committee if a resolution cannot be made. Potential conflicts are handled on an individual basis. Actions taken depend on the severity of the conflict which include no action required, on-going monitoring with appropriate disclosure or withdrawal from the conflicting relationship. Conflict of interest proceeding are documented in meeting minutes or as appropriate</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 15</FormAndLineReferenceDesc>
        <ExplanationTxt>The American Brain Foundation leases all employees from the American Academy of Neurology (AAN) through a contractual arrangement. This arrangement included, as of 2023, the Foundation Executive Director being leased through AAN. The ABF's Board of Directors is responsible for hiring and setting the compensation for the Executive Director. The Board employs procedures (use of independent consultant, compensation survey, and no involvement of any persons with conflict of interest) and last set compensation amounts in 2023</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, Line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>the Foundation makes the most recent three years audited financial statements and IRS Form 990 available to the public on its website. The Foundation does not make its other governing documents (e.g. articles of incorporation) nor its Conflict of Interest policy available to the public.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part IX, Line 11g</FormAndLineReferenceDesc>
        <ExplanationTxt>Further explanation of the $569K listed for Part IX, Line 11g: Marketing and advertising services in the amount of $453K, staffing consulting and search firm paid in the amount of $100K, program evaluation consultant paid in the amount of $14K, and meeting consultant paid in the amount of $2K.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part XI, Line 9</FormAndLineReferenceDesc>
        <ExplanationTxt>Grant refunds and forfeitures from prior years</ExplanationTxt>
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