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        <ManagementAndGeneralAmt>13852</ManagementAndGeneralAmt>
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      <FeesForServicesAccountingGrp>
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        <ProgramServicesAmt>20095</ProgramServicesAmt>
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        <FundraisingAmt>1341</FundraisingAmt>
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        <EOYAmt>1664775</EOYAmt>
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        <EOYAmt>2284739</EOYAmt>
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      <DonorRestrictionNetAssetsGrp>
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        <CurrentTaxYearMinus3YearsAmt>11889927</CurrentTaxYearMinus3YearsAmt>
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        <CurrentTaxYearAmt>1424282</CurrentTaxYearAmt>
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        <CurrentTaxYearAmt>1424282</CurrentTaxYearAmt>
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        <CurrentTaxYearMinus1YearAmt>29563</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>202912</CurrentTaxYearAmt>
        <TotalAmt>286771</TotalAmt>
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      <GrossReceiptsRltdActivitiesAmt>8420905</GrossReceiptsRltdActivitiesAmt>
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      <PublicSupportPY170Pct>0.18470</PublicSupportPY170Pct>
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        <FormAndLineReferenceDesc>PART II, SECTION C, LINE 17A</FormAndLineReferenceDesc>
        <ExplanationTxt>FACTS AND CIRCUMSTANCES TEST; T1D EXCHANGE QUALIFIES AS A "PUBLICLY SUPPORTED ORGANIZATION UNDER IRC 170(B)(1)(A)(VI) BECAUSE IT SATISFIES THE "FACTS AND CIRCUMSTANCES" TEST SET FORTH IN TREAS. REG. 1.170A-9(F)(3). FIRST, T1D EXCHANGE SATISFIES THE THRESHOLD CRITERIA IN THE REGULATIONS; IT NORMALLY RECEIVES AT LEAST 10% OF ITS SUPPORT FROM THE GENERAL PUBLIC, AND IT CARRIES ON A CONTINUOUS AND BONA FIDE PROGRAM OF SOLICITATION OF PUBLIC SUPPORT. MOREOVER, T1D EXCHANGE MEETS THE FOLLOWING FACTORS ENUMERATED IN THE REGULATION AS BEING INDICATIVE OF PUBLIC SUPPORT: PERCENTAGE OF FINANCIAL SUPPORT (TREAS. REG. 1.170A-9(F)(3)(III)(A)). DURING THE FIVE-YEAR PERIOD ENDING ON DECEMBER 31, 2023, THE PORTION OF T1D EXCHANGE'S SUPPORT THAT QUALIFIES AS ELIGIBLE PUBLIC SUPPORT IS 23.55% (SEE SCHEDULE A) - MEANINGFULLY ABOVE THE 10% THRESHOLD. IT SHOULD BE NOTED THAT THE ORGANIZATION SATISFIED THE 33.3% PUBLIC SUPPORT TEST FROM IT'S INCEPTION IN 2011 UNTIL 2022. SOURCES OF SUPPORT (TREAS. REG. 1.170A-9(F)(3)(III)(B)). T1D EXCHANGE RECEIVES ITS PUBLIC SUPPORT FROM A VARIETY OF INDIVIDUALS, CORPORATIONS, AND PRIVATE FOUNDATIONS, AND DOES NOT DEPEND ON A SINGLE FAMILY FOR CONTRIBUTIONS. T1D EXCHANGE IS INDEPENDENT OF ITS CORPORATE AND FOUNDATION CONTRIBUTORS. REPRESENTATIVE GOVERNING BODY (TREAS. REG. 1.170A-9(F)(3)(III)(C)). T1D EXCHANGE IS GUIDED BY A VOLUNTEER BOARD OF NONPROFIT PROFESSIONALS, SCHOLARS, BUSINESS AND COMMUNITY LEADERS, AND EXPERTS IN ITS FIELD. THESE INDIVIDUALS REPRESENT A BROAD CROSS-SECTION OF THE VIEWS AND INTERESTS OF THE COMMUNITIES THAT T1D EXCHANGE SERVES AND ARE EMINENTLY QUALIFIED TO ENSURE THAT THE ORGANIZATION OPERATES FOR THE INTERESTS OF THE PUBLIC, AS OPPOSED TO THE PERSONAL OR PRIVATE INTERESTS OF ANY PARTICULAR DONOR OR FUNDER. AVAILABILITY OF PUBLIC SERVICES; PUBLIC PARTICIPATION IN PROGRAMS OR POLICIES (TREAS. REG. 1.170A-9(F)(3)(III)(D)). T1D EXCHANGE WAS CREATED IN 2011 TO SERVE THE POPULATION OF INDIVDIUALS WITH TYPE 1 DIABETES AND THEIR CAREGIVERS. CURRENTLY, T1D EXCHANGE WORKS WITH 61 OF THE NATION'S LEADING ENDOCRINOLOGY CLINICS, WHO ARE ALSO NONPROFIT ORGANIZATIONS, AS A PART OF THE T1D EXCHANGE QUALITY IMPROVEMENT COLLABRATIVE (QIC). THE QIC LEVERAGES BEST PRACTICES, INFORMATION SHARING AND BENCHMARKING AND IMPLEMENTATION OF INTERVENTIONS IN THEIR CARE DELIVERY TO IMPROVE OUTCOMES. THERE ARE OVER 110,000 PATIENTS WITH TYPE 1 DIABETES SERVED BY THESE 61 CLINICS. SINCE ITS CREATION IN 2016, THE QIC HAS ALSO WORKED TO DISSEMINATE EVIDENCE TO THE HEALTHCARE COMMUNITY. THIS EVIDENCE IS IN THE FORM OF PUBLICATIONS IN PEER-REVIEWED JOURNALS, PRESENTATIONS AT MAJOR MEDICAL CONFERENCES, AND INCLUSION OF RESOURCES SUCH AS BEST PRACTICES, CHANGE PACKAGES AND CASE STUDIES ON MULTIPLE WEBSITES AND PORTALS. IN ADDTION TO THE QIC, THE ORGNIZATION ALSO OPERATES AN ONLINE PATIENT REGISTRY OF THOSE THAT HAVE TYPE 1 DIABETES OR THEIR CAREGIVERS (IF UNDER 18). AT THE END OF 2023 THE REGISTRY HAD OVER 20,000 PARTICIPANTS THAT HAVE VOLUNTEERED TO RESPOND TO SURVEYS AND IN SOME CASES, SHARE DEVICE DATA, ON THEIR EXPERIENCES LIVING WITH TYPE 1 DIABETES. THROUGH THE REGISTRY AND CLINICS, WE HAVE HELPED THOSE CONNECTED TO US TO RECEIVE BETTER CARE POSSIBLE BY PROVIDING THEM WITH INFORMATION ON DIABETES MANAGEMENT, RESEARCH STUDIES, LIFESTYLE CHANGES AND THE LATEST UPDATES IN MEDICAL TREATMENTS. OUR WORK HAS ALSO FOCUSED ON THE MENTAL HEALTH ASPECTS OF LIVING WITH DIABETES AND HAS INCLUDED CREATION OF NEW SCREENING TOOLS THAT HAVE BEEN PILOTED IN DIFFERENT CLINICS. WE HAVE PROVIDED REAL-WORLD EVIDENCE TO SUBSTANTIATE OUR IMPACT IN THE AREAS OF IMPROVING PATIENTS' GLUCOSE CONTROL, INCREASING THE ACCESS AND KNOWLEDGE OF DIABETES DEVICES OVERALL, AND IN PARTICULAR TO AT-RISK AND DISADVANTAGED POPULATIONS, ETC. OVER THE PAST 5 TAX YEARS, T1D EXCHANGE STAFF HAVE AUTHORED OVER 100 RESEARCH PAPERS, MANUSCRIPTS, AND ABSTRACTS IN VARYING ACCREDITED JOURNALS OR DIABETES CONFERENCES AND PUBLISHED HUNDREDS OF SHORTER PIECES (INCLUDING ARTICLES, BLOGS, CASES, AND OP-EDS). THESE MATERIALS ARE AVAILABLE TO THE GENERAL PUBLIC THROUGH T1D EXCHANGE WEBSITE, T1DEXCHANGE.ORG AND/OR SOCIAL MEDIA PAGES. STAFF HAVE ALSO PRESENTED 49 TIMES ON EITHER CONFERENCE PANELS OR ACADEMIC LECTURES INCLUDING THE HIGHLY REGARDED AMERICAN DIABETES ASSOCIATION ANNUAL CONFERENCE AND BEEN THE SUBJECT OF MANY MEDIA INQUIRIES AND INTERVIEWS. OUR CHIEF MEDICAL OFFICER SITS ON THE JOURNAL EDITORIAL BOARD OF "FRONTIERS IN ENDOCRINOLOGY", AND IS AN ADJUNCT PROFESSOR WITH THE UNIVERSITY OF MISSISSIPPI SCHOOL OF POPULATION HEALTH. WE ARE ALSO CONNECTED VIA SOCIAL MEDIA TO OVER 50,000 PEOPLE WITH TYPE 1 DIABETES AND ENGAGE THEM BY PUBLISHING RELEVANT ARTICLES, RESOURCES AND INFORMATION ON PLATFORMS SUCH AS FACEBOOK, INSTAGRAM, LINKEDIN AND X (FORMERLY TWITTER). OUR PUBLIC FUNDRAISING EFFORTS ARE ROBUST, AS WE CONDUCT YEARLY SOLICITATIONS AND HAVE WRITTEN OVER 50 GRANT APPLICATIONS TO LARGE GRANT-FUNDING ORGANIZATIONS AND GOVERNMENT AGENCIES AND INDUSTRY FOUNDATIONS. WE'VE RECEIVED SUBSTANTIAL GIFTS FROM LEADING FUNDERS IN THE TYPE 1 DIABETES SPACE, INCLUDING BREAKTHROUGH T1D FORMERLY KNOW AS THE JUVENILE DIABETES RESEARCH FOUNDATION, THE AMERICAN DIABETES ASSOCIATION, HELMSLEY CHARTIABLE TRUST AND JOSLIN DIABETES CENTER. 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      <AssetPurchaseFromOtherOrgInd>0</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>0</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>0</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>0</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>0</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>0</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>0</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>0</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>0</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>0</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>0</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>0</TransferFromOtherOrgInd>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>T1D EXCHANGE SUPPORTING FOUNDATION INC</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>E</TransactionTypeTxt>
        <InvolvedAmt>110837</InvolvedAmt>
      </TransactionsRelatedOrgGrp>
    </IRS990ScheduleR>
  </ReturnData>
</Return>