<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.irs.gov/efile" returnVersion="2023v5.0">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2024-05-09T08:50:49-05:00</ReturnTs>
    <TaxPeriodEndDt>2023-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>042887211</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>KATZ NANNIS SOLOMON PC</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>800 SOUTH STREET SUITE 250</AddressLine1Txt>
        <CityNm>WALTHAM</CityNm>
        <StateAbbreviationCd>MA</StateAbbreviationCd>
        <ZIPCd>024531480</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>814241717</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>THINKGENETIC FOUNDATION INC</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>THIN</BusinessNameControlTxt>
      <PhoneNum>6179620430</PhoneNum>
      <USAddress>
        <AddressLine1Txt>328 OLD LANCASTER ROAD</AddressLine1Txt>
        <CityNm>SUDBURY</CityNm>
        <StateAbbreviationCd>MA</StateAbbreviationCd>
        <ZIPCd>01776</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>DAVID A JACOB</PersonNm>
      <PersonTitleTxt>PRESIDENT</PersonTitleTxt>
      <PhoneNum>6179620430</PhoneNum>
      <SignatureDt>2024-05-07</SignatureDt>
      <DiscussWithPaidPreparerInd>1</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <SigningOfficerGrp>
      <PersonFullName>
        <PersonFirstNm>DAVID</PersonFirstNm>
        <PersonLastNm>JACOB</PersonLastNm>
      </PersonFullName>
      <SSN>999009999</SSN>
    </SigningOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>0</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>JEFFREY D SOLOMON CPA</PreparerPersonNm>
      <PTIN>P00039505</PTIN>
      <PhoneNum>7814538700</PhoneNum>
    </PreparerPersonGrp>
    <AdditionalFilerInformation>
      <TrustedCustomerGrp>
        <TrustedCustomerCd>2</TrustedCustomerCd>
        <AuthenticationAssuranceLevelCd>AAL1</AuthenticationAssuranceLevelCd>
        <IdentityAssuranceLevelCd>IAL1</IdentityAssuranceLevelCd>
      </TrustedCustomerGrp>
    </AdditionalFilerInformation>
    <TaxYr>2023</TaxYr>
    <BuildTS>2023-04-26 12:10:37Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="5">
    <IRS990EZ documentId="RetDoc1234200001" referenceDocumentId="RetDoc1051800001 RetDoc2278000001">
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <WebsiteAddressTxt>WWW.THINKGENETIC.ORG</WebsiteAddressTxt>
      <Organization501c3Ind referenceDocumentId="RetDoc1039100001">X</Organization501c3Ind>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>120410</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>118829</ContributionsGiftsGrantsEtcAmt>
      <InvestmentIncomeAmt>1581</InvestmentIncomeAmt>
      <TotalRevenueAmt>120410</TotalRevenueAmt>
      <GrantsAndSimilarAmountsPaidAmt>80820</GrantsAndSimilarAmountsPaidAmt>
      <FeesAndOtherPymtToIndCntrctAmt>65790</FeesAndOtherPymtToIndCntrctAmt>
      <OtherExpensesTotalAmt>6832</OtherExpensesTotalAmt>
      <TotalExpensesAmt>153442</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>-33032</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>107980</NetAssetsOrFundBalancesBOYAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <NetAssetsOrFundBalancesEOYAmt>74948</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIInd>X</InfoInScheduleOPartIIInd>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>107980</BOYAmt>
        <EOYAmt>72998</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <OtherAssetsTotalDetail>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>1950</EOYAmt>
      </OtherAssetsTotalDetail>
      <Form990TotalAssetsGrp>
        <BOYAmt>107980</BOYAmt>
        <EOYAmt>74948</EOYAmt>
      </Form990TotalAssetsGrp>
      <SumOfTotalLiabilitiesGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </SumOfTotalLiabilitiesGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>107980</BOYAmt>
        <EOYAmt>74948</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <PrimaryExemptPurposeTxt>THINKGENETIC FOUNDATION IS ORGANIZED EXCLUSIVELY FOR CHARITABLE, SCIENTIFIC, AND EDUCATIONAL PURPOSES TO EDUCATE AND EMPOWER PEOPLE AND FAMILIES LIVING WITH GENETIC DISEASES AND THE HEALTHCARE PROVIDERS WHO CARE FOR THEM BY DEVELOPING, DISTRIBUTING, AND EVALUATING ACCURATE GENETIC INFORMATIONAL RESOURCES.</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>EDUCATE AND EMPOWER PEOPLE AND FAMILIES LIVING WITH GENETIC DISEASES AND HEALTHCARE PROVIDERS WHO CARE FOR THEM.</DescriptionProgramSrvcAccomTxt>
        <GrantsAndAllocationsAmt>80820</GrantsAndAllocationsAmt>
        <ProgramServiceExpensesAmt>150727</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>150727</TotalProgramServiceExpensesAmt>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>DAVID A JACOB</PersonNm>
        <TitleTxt>PRESIDENT/CLERK</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>4.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>JOHN LAUDERBACH</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>JOAN VIGNOVICH</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>ROBERT J HOPKIN</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>DAWN LANEY</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>4.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <InfoInScheduleOPartVInd>X</InfoInScheduleOPartVInd>
      <ActivitiesNotPreviouslyRptInd>0</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>0</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>0</OrganizationHadUBIInd>
      <SubjectToProxyTaxInd>0</SubjectToProxyTaxInd>
      <OrganizationDissolvedEtcInd>0</OrganizationDissolvedEtcInd>
      <DirectIndirectPltclExpendAmt>0</DirectIndirectPltclExpendAmt>
      <MadeLoansToFromOfficersInd>0</MadeLoansToFromOfficersInd>
      <TaxImposedUnderIRC4911Amt>0</TaxImposedUnderIRC4911Amt>
      <TaxImposedUnderIRC4912Amt>0</TaxImposedUnderIRC4912Amt>
      <TaxImposedUnderIRC4955Amt>0</TaxImposedUnderIRC4955Amt>
      <EngagedInExcessBenefitTransInd>0</EngagedInExcessBenefitTransInd>
      <TaxImposedOnOrganizationMgrAmt>0</TaxImposedOnOrganizationMgrAmt>
      <TaxReimbursedByOrganizationAmt>0</TaxReimbursedByOrganizationAmt>
      <ProhibitedTaxShelterTransInd>0</ProhibitedTaxShelterTransInd>
      <StatesWhereCopyOfReturnIsFldCd>MA</StatesWhereCopyOfReturnIsFldCd>
      <BooksInCareOfDetail>
        <PersonNm>DAVID JACOB</PersonNm>
        <USAddress>
          <AddressLine1Txt>328 OLD LANCASTER ROAD</AddressLine1Txt>
          <CityNm>SUDBURY</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01776</ZIPCd>
        </USAddress>
        <PhoneNum>6179620430</PhoneNum>
      </BooksInCareOfDetail>
      <ForeignFinancialAccountInd>0</ForeignFinancialAccountInd>
      <ForeignOfficeInd>0</ForeignOfficeInd>
      <DonorAdvisedFndsInd>0</DonorAdvisedFndsInd>
      <OperateHospitalInd>0</OperateHospitalInd>
      <TanningServicesProvidedInd>0</TanningServicesProvidedInd>
      <RelatedOrganizationCtrlEntInd>0</RelatedOrganizationCtrlEntInd>
      <PoliticalCampaignActyInd>0</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>0</LobbyingActivitiesInd>
      <SchoolOperatingInd>0</SchoolOperatingInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>0</TrnsfrExmptNonChrtblRltdOrgInd>
      <PartVIOfCompOfHghstPdEmplTxt>NONE</PartVIOfCompOfHghstPdEmplTxt>
      <PartVIHghstPdCntrctProfSrvcTxt>NONE</PartVIHghstPdCntrctProfSrvcTxt>
      <FiledScheduleAInd>1</FiledScheduleAInd>
    </IRS990EZ>
    <IRS990ScheduleA documentId="RetDoc1039100001">
      <PubliclySupportedOrg509a2Ind>X</PubliclySupportedOrg509a2Ind>
      <GiftsGrantsContrisRcvd509Grp>
        <CurrentTaxYearMinus4YearsAmt>17925</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>40871</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>109439</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>164521</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>118829</CurrentTaxYearAmt>
        <TotalAmt>451585</TotalAmt>
      </GiftsGrantsContrisRcvd509Grp>
      <GrossReceiptsAdmissionsGrp>
        <CurrentTaxYearMinus4YearsAmt>5</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus1YearAmt>7850</CurrentTaxYearMinus1YearAmt>
        <TotalAmt>7855</TotalAmt>
      </GrossReceiptsAdmissionsGrp>
      <Total509Grp>
        <CurrentTaxYearMinus4YearsAmt>17930</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>40871</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>109439</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>172371</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>118829</CurrentTaxYearAmt>
        <TotalAmt>459440</TotalAmt>
      </Total509Grp>
      <AmountsRcvdDsqlfyPersonGrp>
        <CurrentTaxYearMinus1YearAmt>5000</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>2808</CurrentTaxYearAmt>
        <TotalAmt>7808</TotalAmt>
      </AmountsRcvdDsqlfyPersonGrp>
      <SubstantialContributorsAmtGrp>
        <TotalAmt>0</TotalAmt>
      </SubstantialContributorsAmtGrp>
      <SubstAndDsqlfyPrsnsTotGrp>
        <CurrentTaxYearMinus1YearAmt>5000</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>2808</CurrentTaxYearAmt>
        <TotalAmt>7808</TotalAmt>
      </SubstAndDsqlfyPrsnsTotGrp>
      <PublicSupportTotal509Amt>451632</PublicSupportTotal509Amt>
      <GrossInvestmentIncome509Grp>
        <CurrentTaxYearMinus3YearsAmt>1</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>2</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>193</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1581</CurrentTaxYearAmt>
        <TotalAmt>1777</TotalAmt>
      </GrossInvestmentIncome509Grp>
      <InvestmentIncomeAndUBTIGrp>
        <CurrentTaxYearMinus3YearsAmt>1</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>2</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>193</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1581</CurrentTaxYearAmt>
        <TotalAmt>1777</TotalAmt>
      </InvestmentIncomeAndUBTIGrp>
      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus4YearsAmt>17930</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>40872</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>109441</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>172564</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>120410</CurrentTaxYearAmt>
        <TotalAmt>461217</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <PublicSupportCY509Pct>0.97920</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>0.98540</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.00390</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.00060</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
    </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>
    <IRS990ScheduleO documentId="RetDoc1051800001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 4 - OTHER INVESTMENT INCOME</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION: INTEREST. AMOUNT: 1,354. DESCRIPTION: DIVIDENDS. AMOUNT: 227. TOTAL INCLUDED ON FORM 990-EZ, LINE 4: 1,581.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 10 - GRANTS AND SIMILAR AMOUNTS PAID</FormAndLineReferenceDesc>
        <ExplanationTxt>ACTIVITY CLASSIFICATION: PROFESSIONAL SUPPORT GRANTS. GRANTEE NAME: INDIVIDUAL GRANTS BELOW $5,000. GRANTEE RELATIONSHIP: NONE. DATE OF GIFT: 12/31/23. AMOUNT GIVEN: 67,220.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 10 - GRANTS AND SIMILAR AMOUNTS PAID</FormAndLineReferenceDesc>
        <ExplanationTxt>ACTIVITY CLASSIFICATION: PROFESSIONAL SUPPORT GRANTS. GRANTEE NAME: HORIZON THERAPEUTICS. GRANTEE ADDRESS: 1 HORIZON WAY DEERFIELD, IL 60015. GRANTEE RELATIONSHIP: NONE. DATE OF GIFT: 11/26/03. AMOUNT GIVEN: 12,600.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 10 - GRANTS AND SIMILAR AMOUNTS PAID</FormAndLineReferenceDesc>
        <ExplanationTxt>ACTIVITY CLASSIFICATION: PROFESSIONAL SUPPORT GRANTS. GRANTEE NAME: OVID THERAPEUTICS. GRANTEE RELATIONSHIP: NONE. DATE OF GIFT: 05/01/23. AMOUNT GIVEN: 1,000. TOTAL INCLUDED ON FORM 990-EZ, LINE 10: 80,820.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 16 - OTHER EXPENSES</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION: OFFICE EXPENSES. AMOUNT: 525. DESCRIPTION: INSURANCE. AMOUNT: 1,920. DESCRIPTION: TRAVEL. AMOUNT: 1,336. DESCRIPTION: TAXES &amp; LICENSES. AMOUNT: 35. DESCRIPTION: ADVERTISING AND MARKETING. AMOUNT: 301. DESCRIPTION: CONFERENCE EXPENSES. AMOUNT: 2,715. TOTAL TO FORM 990-EZ, LINE 16: 6,832.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART II, LINE 24 - OTHER ASSETS</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION: ACCOUNTS RECEIVABLE. BEG. OF YEAR AMOUNT: 0. END OF YEAR AMOUNT: 1,950.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <TransferPrsnlBnftContractsDecl documentId="RetDoc2278000001">
      <DeclarationDesc>THE ORGANIZATION DID NOT, DURING THE YEAR, RECEIVE ANY FUNDS, DIRECTLY,OR INDIRECTLY, TO PAY PREMIUMS ON A PERSONAL BENEFIT CONTRACT.THE ORGANIZATION, DID NOT, DURING THE YEAR, PAY ANY PREMIUMS, DIRECTLY,OR INDIRECTLY, ON A PERSONAL BENEFIT CONTRACT.</DeclarationDesc>
    </TransferPrsnlBnftContractsDecl>
  </ReturnData>
</Return>
