Liabilities / Assets
3rd percentile
Tied with the lowest-debt nonprofits in its peer group.
EIN 34-6919291 • 501(c)3 • Brooklyn, OH
Profile
Grants are paid according to Trust Agreement dated December 29, 1987, between the Holden Arboretum and Keybank, N.A., as Trustee. The trust shall be organized and operated exclusively for charitable, educational, and scientific purposes by distributing its net income to or for the exclusive benefit of, to perform the functions of, or to carry out the charitable, educational, and scientific purposes of the Arboretum. Keybank maintains a responsiveness to the needs and activities of the beneficiary organization in the attainment of its mission.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
3rd percentile
Tied with the lowest-debt nonprofits in its peer group.
Liabilities / Revenue
4th percentile
Tied with the lowest-debt nonprofits in its peer group.
Net Margin
93rd percentile
Higher net margin than 93% of similar nonprofits.
Top Officer Pay
41st percentile
Higher top officer pay than 41% of similar nonprofits.
Top officer pay equals 2.1% of source-year revenue.
Asset Growth
74th percentile
Faster asset growth than 74% of similar nonprofits.
Revenue Growth
96th percentile
Faster revenue growth than 96% of similar nonprofits.
Assets
Up$76,745,535
Up $8,947,620 (+13%) from 2024
Liabilities
Flat$0
Flat from 2024
Net Assets
Up$76,745,535
Up $8,947,620 (+13%) from 2024
Revenue
Up$14,425,652
Up $9,630,665 (+201%) from 2024
Expenses
Up$5,409,865
Up $412,142 (+8.2%) from 2024
Net Income
Up$9,015,787
Up $9,218,523 (+4547%) from 2024
Most recent year
2025 • Form 990Detailed filing. Detailed filing data is available for this year.
Grants are paid according to Trust Agreement dated December 29, 1987,between the Holden Arboretum and Keybank, N.A., as Trustee. The trust shall be organized and operated exclusively for charitable, educational, and scientific purposes by distributing its net income to or for the exclusive benefit of, to perform the functions of, or to carry out the charitable, educational, and scientific purposes of the Arboretum. Keybank maintains a responsiveness to the needs and activities of the beneficiary organization in the attainment of its mission.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Cap Stk Tr Prin Current Funds | $67,797,915 | $76,745,535 | ▲ $8,947,620 |
| Investments Other Securities | $37,250,761 | $51,451,146 | ▲ $14,200,385 |
| Investments in Publicly Traded Securities | $30,547,154 | $25,294,389 | ▼ $5,252,765 |
| Total Assets | $67,797,915 | $76,745,535 | ▲ $8,947,620 |
| Liabilities | |||
| Total Liabilities | $0 | $0 | → $0 |
| Net Assets / Fund Balance | |||
| Total Net Assets Fund Balance | $67,797,915 | $76,745,535 | ▲ $8,947,620 |
| Total Liabilities and Net Assets / Fund Balance | $67,797,915 | $76,745,535 | ▲ $8,947,620 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Other Securities | $5,000,000 | - | - |
| Name | Title | Full / Part Time | Base | Total |
|---|---|---|---|---|
| Keybank National Association | Trustee | PT | $309,323 | $309,323 |
| Line Item | Amount |
|---|---|
| Grants and Similar Amounts Paid | $5,080,476 |
| Salaries, Compensation, and Employee Benefits | $309,323 |
| Other Expenses | $20,066 |
| Professional Fundraising Fees | $0 |
| Total Fundraising Expense | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Grants to Domestic Orgs | $5,080,476 | - | - | $5,080,476 |
| Current Officers, Directors, Trustees, and Key Employees | - | $309,323 | - | $309,323 |
| All Other Expenses | - | $19,016 | - | $19,016 |
| Fees for Services Accounting | - | $1,050 | - | $1,050 |
| Total Functional Expenses | $5,080,476 | $329,389 | $0 | $5,409,865 |
| Recipient | Location | Category | Purpose | Amount |
|---|---|---|---|---|
| Holden Arboretum | Kirtland, OH | 170(b)(1)(A) | For Scientific and Educational Use | $5,080,476 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
“No conflict of interest policy exists for the trust. Keybank n a has a corporate conflict of interest policy.”
“The trust has no written document retention or destruction policy. Keybank n a has a corporate document retention and destruction policy.”
“Keybank national association is sole trustee”
“All returns are prepared and thoroughly reviewed by our tax vendor and/or internal professional tax department”
“Keybank is sole trustee, is compensated as such, and makes all decisions with respect to the operation and administration of the trust.”
“Keybank is sole trustee, is compensated as such, and makes all decisions with respect to the operation and administration of the trust.”
“Documents are available upon request by mail or by phone and delivered within two weeks of the request.”
“Documents are available upon request by mail or by phone and delivered within two weeks of the request.”
“Adjustment to cost to reflect Schedule K-1 information from various partnerships held in trust which report on a calendar year end. Trust is on a September fiscal year end.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990/AccountantCompileOrReviewInd | 0 | false |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | Grants are paid according to Trust Agreement dated December 29, 1987,between the Holden Arboretum and Keybank, N.A., as Trustee. The trust shall be organized and operated exclusively for charitable, educational, and scientific purposes by distributing its net income to or for the exclusive benefit of, to perform the functions of, or to carry out the charitable, educational, and scientific purposes of the Arboretum. Keybank maintains a responsiveness to the needs and activities of the beneficiary organization in the attainment of its mission. |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 19016 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 19016 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | KEYBANK NATIONAL ASSOCIATION |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 2168134548 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 4900 TIEDEMAN RD OH-01-49-0381 |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | BROOKLYN |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | OH |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 441442302 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CapStkTrPrinCurrentFundsGrp/BOYAmt | 0 | 67797915 |
| IRS990/CapStkTrPrinCurrentFundsGrp/EOYAmt | 0 | 76745535 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 309323 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 309323 |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | false |
| IRS990/CompensationProcessOtherInd | 0 | false |
| IRS990/ConflictOfInterestPolicyInd | 0 | false |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 0 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 5080476 |
| IRS990/CYInvestmentIncomeAmt | 0 | 13558921 |
| IRS990/CYOtherExpensesAmt | 0 | 20066 |
| IRS990/CYOtherRevenueAmt | 0 | 866731 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 9015787 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 309323 |
| IRS990/CYTotalExpensesAmt | 0 | 5409865 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 14425652 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/Desc | 0 | Grants are paid for the exclusive benefit of, to perform the functions of, or to carry out the charitable, educational, and scientific purposes of the Holden Arboretum. |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | false |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/ExcsTaxSect4951Or4952Or4953Ind | 0 | false |
| IRS990/ExpenseAmt | 0 | 5080476 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 1050 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 1050 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form8282PropertyDisposedOfInd | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 15.0 |
| IRS990/Form990PartVIISectionAGrp/InstitutionalTrusteeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | KEYBANK NATIONAL ASSOCIATION |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 309323 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | TRUSTEE |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/Form990TFiledInd | 0 | true |
| IRS990/FormationYr | 0 | 1987 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedInd | 0 | false |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 12907542 |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 1 |
| IRS990/GrantAmt | 0 | 5080476 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 5080476 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 5080476 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | true |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 18926967 |
| IRS990/GrossReceiptsAmt | 0 | 20445077 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IndependentAuditFinclStmtInd | 0 | false |
| IRS990/IndependentVotingMemberCnt | 0 | 0 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 1 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIInd | 0 | X |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 651379 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 651379 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/InvestmentsOtherSecuritiesGrp/BOYAmt | 0 | 37250761 |
| IRS990/InvestmentsOtherSecuritiesGrp/EOYAmt | 0 | 51451146 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 30547154 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 25294389 |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LegalDomicileStateCd | 0 | OH |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 6019425 |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembersOrStockholdersInd | 0 | false |
| IRS990/MethodOfAccountingCashInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MiscellaneousRevenueGrp/ExclusionAmt | 0 | 788880 |
| IRS990/MiscellaneousRevenueGrp/TotalRevenueColumnAmt | 0 | 866731 |
| IRS990/MiscellaneousRevenueGrp/UnrelatedBusinessRevenueAmt | 0 | 77851 |
| IRS990/MissionDesc | 0 | Grants are paid according to Trust Agreement dated December 29, 1987,between the Holden Arboretum and Keybank, N.A., as Trustee. The trust shall be organized and operated exclusively for charitable, educational, and scientific purposes by distributing its net income to or for the exclusive benefit of, to perform the functions of, or to carry out the charitable, educational, and scientific purposes of the Arboretum. Keybank maintains a responsiveness to the needs and activities of the beneficiary organization in the attainment of its mission. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 67797915 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 76745535 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | 12907542 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 12907542 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 37992 |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrgDoesNotFollowFASB117Ind | 0 | X |
| IRS990/OtherChangesInNetAssetsAmt | 0 | -68167 |
| IRS990/OtherRevenueTotalAmt | 0 | 866731 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | false |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrincipalOfcrBusinessName/BusinessNameLine1Txt | 0 | KEYBANK NATRUSTEE |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 4743190 |
| IRS990/PYInvestmentIncomeAmt | 0 | 2221271 |
| IRS990/PYOtherExpensesAmt | 0 | 3425 |
| IRS990/PYOtherRevenueAmt | 0 | 2573716 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | -202736 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 251108 |
| IRS990/PYTotalExpensesAmt | 0 | 4997723 |
| IRS990/PYTotalRevenueAmt | 0 | 4794987 |
| IRS990/QuidProQuoContributionsInd | 0 | false |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | false |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 9015787 |
| IRS990/RelatedEntityInd | 0 | false |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990/ReportInvestmentsOtherSecInd | 0 | true |
| IRS990/ReportLandBuildingEquipmentInd | 0 | false |
| IRS990/ReportOtherAssetsInd | 0 | false |
| IRS990/ReportOtherLiabilitiesInd | 0 | false |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990ScheduleA/DistributableAmountGrp/CYAdjNetIncomeDistributableAmt | 0 | 0 |
| IRS990ScheduleA/DistributableAmountGrp/CYDistributableAsAdjustedAmt | 0 | 0 |
| IRS990ScheduleA/DistributableAmountGrp/CYGreaterAdjustedMinimumAmt | 0 | 0 |
| IRS990ScheduleA/DistributableAmountGrp/CYIncomeTaxImposedPYAmt | 0 | 0 |
| IRS990ScheduleA/DistributableAmountGrp/CYPct85AdjustedNetIncomeAmt | 0 | 0 |
| IRS990ScheduleA/DistributableAmountGrp/CYTotalMinAstDistributableAmt | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/Contribution35ControlledInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ContributionControllerInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ContributionFamilyInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ControlledDisqualifiedPrsnInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/DisqualifiedPrsnControllIntInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/DisqualifiedPrsnOwnrIntInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ExcessBusinessHoldingsRulesInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ListedByNameGoverningDocInd | 0 | true |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/LoanDisqualifiedPersonInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/OrganizationChangeSuprtOrgInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/PaymentSubstantialContribtrInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SupportedOrgNotOrganizedUSInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SupportedOrgSectionC456Ind | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SupportNonSupportedOrgInd | 0 | false |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SuprtOrgNoIRSDeterminationInd | 0 | false |
| IRS990ScheduleA/Form990SchAType1SuprtOrgGrp/OperateBenefitNonSuprtOrgInd | 0 | false |
| IRS990ScheduleA/Form990SchAType1SuprtOrgGrp/PowerAppointMajorityDirTrstInd | 0 | true |
| IRS990ScheduleA/OtherSupportSumAmt | 0 | 0 |
| IRS990ScheduleA/SupportedOrganizationsCnt | 0 | 1 |
| IRS990ScheduleA/SupportedOrganizationsTotalCnt | 0 | 1 |
| IRS990ScheduleA/SupportedOrgInformationGrp/EIN | 0 | 340750346 |
| IRS990ScheduleA/SupportedOrgInformationGrp/GoverningDocumentListedInd | 0 | true |
| IRS990ScheduleA/SupportedOrgInformationGrp/OrganizationTypeCd | 0 | 7 |
| IRS990ScheduleA/SupportedOrgInformationGrp/OtherSupportAmt | 0 | 0 |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportAmt | 0 | 5080476 |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportedOrganizationName/BusinessNameLine1Txt | 0 | HOLDEN ARBORETUM |
| IRS990ScheduleA/SupportingOrganization509a3Ind | 0 | X |
| IRS990ScheduleA/SupportingOrgType1Ind | 0 | X |
| IRS990ScheduleA/SupportSumAmt | 0 | 5080476 |
| IRS990/ScheduleBRequiredInd | 0 | false |
| IRS990ScheduleD/OtherSecuritiesGrp/BookValueAmt | 0 | 8813355 |
| IRS990ScheduleD/OtherSecuritiesGrp/BookValueAmt | 1 | 86779 |
| IRS990ScheduleD/OtherSecuritiesGrp/BookValueAmt | 2 | 145600 |
| IRS990ScheduleD/OtherSecuritiesGrp/BookValueAmt | 3 | 4333002 |
| IRS990ScheduleD/OtherSecuritiesGrp/BookValueAmt | 4 | -105582 |
| IRS990ScheduleD/OtherSecuritiesGrp/BookValueAmt | 5 | 803635 |
| IRS990ScheduleD/OtherSecuritiesGrp/BookValueAmt | 6 | 784964 |
| IRS990ScheduleD/OtherSecuritiesGrp/BookValueAmt | 7 | 593805 |
| IRS990ScheduleD/OtherSecuritiesGrp/BookValueAmt | 8 | 2398410 |
| IRS990ScheduleD/OtherSecuritiesGrp/BookValueAmt | 9 | 659856 |
| IRS990ScheduleD/OtherSecuritiesGrp/BookValueAmt | 10 | 11220304 |
| IRS990ScheduleD/OtherSecuritiesGrp/BookValueAmt | 11 | 165774 |
| IRS990ScheduleD/OtherSecuritiesGrp/BookValueAmt | 12 | 1007933 |
| IRS990ScheduleD/OtherSecuritiesGrp/BookValueAmt | 13 | 141600 |
| IRS990ScheduleD/OtherSecuritiesGrp/BookValueAmt | 14 | 4000000 |
| IRS990ScheduleD/OtherSecuritiesGrp/BookValueAmt | 15 | 62210 |
| IRS990ScheduleD/OtherSecuritiesGrp/BookValueAmt | 16 | 129210 |
| IRS990ScheduleD/OtherSecuritiesGrp/BookValueAmt | 17 | 788229 |
| IRS990ScheduleD/OtherSecuritiesGrp/BookValueAmt | 18 | 772551 |
| IRS990ScheduleD/OtherSecuritiesGrp/BookValueAmt | 19 | 5968475 |
| IRS990ScheduleD/OtherSecuritiesGrp/BookValueAmt | 20 | 3681036 |
| IRS990ScheduleD/OtherSecuritiesGrp/BookValueAmt | 21 | 5000000 |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 0 | FARRALLON CAPITAL INSTL PARTNERS |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 1 | HARBOURVEST PARTNERS VII VENTR HLDG |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 2 | SIGULER GUFF BRIC OPP FD II LP |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 3 | SIGULER GUFF DISTRESSED OPP FD III |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 4 | CHARITABLE MID CAP FUND |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 5 | PRIVATE ADVISORS COINVESTMENT FD II |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 6 | BLUE OWL GP STAKES II OFFSHORE INV |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 7 | RIVERSIDE MICRO-CAP FUND IV-A |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 8 | PRIVATE ADVISORS SECONDARY FD V |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 9 | HIG WHITEHORSE PRINCIPAL LENDING OF |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 10 | RIVERSIDE MICRO-CAP FUND V-A |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 11 | CHARITABLE INTL EQUITY FUND |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 12 | HIG WHIITEHORSE EQUITY SIDECAR |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 13 | IMPACTIVE CAPITAL FUND LP |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 14 | TRUEBRIDGE GLOBAL PREMIER I LP |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 15 | SAMLYN LONG ALPHA OFFSHORE LTD HEDG |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 16 | TRUEBRIDGE CAP PRTNERS FD VIII |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 17 | ACCOLADE EMPOWERMENT FUND II |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 18 | HIG EUROPE REALTY PTRS FEEDER |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 19 | CARLYLE PRIV EQTY ACCESS BLOCKER FD |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 20 | CHARITABLE CORE FIXED INCOME FUND |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 21 | WHITESPRUCE FUND LP |
| IRS990ScheduleD/OtherSecuritiesGrp/Desc | 22 | ALEUTIAN FUND LTD HEDGE FD SER 3 |
| IRS990ScheduleD/OtherSecuritiesGrp/MethodValuationCd | 0 | C |
| IRS990ScheduleD/OtherSecuritiesGrp/MethodValuationCd | 1 | C |
| IRS990ScheduleD/OtherSecuritiesGrp/MethodValuationCd | 2 | C |
| IRS990ScheduleD/OtherSecuritiesGrp/MethodValuationCd | 3 | C |
| IRS990ScheduleD/OtherSecuritiesGrp/MethodValuationCd | 4 | C |
| IRS990ScheduleD/OtherSecuritiesGrp/MethodValuationCd | 5 | C |
| IRS990ScheduleD/OtherSecuritiesGrp/MethodValuationCd | 6 | C |
| IRS990ScheduleD/OtherSecuritiesGrp/MethodValuationCd | 7 | C |
| IRS990ScheduleD/OtherSecuritiesGrp/MethodValuationCd | 8 | C |
| IRS990ScheduleD/OtherSecuritiesGrp/MethodValuationCd | 9 | C |
| IRS990ScheduleD/OtherSecuritiesGrp/MethodValuationCd | 10 | C |
| IRS990ScheduleD/OtherSecuritiesGrp/MethodValuationCd | 11 | C |
| IRS990ScheduleD/OtherSecuritiesGrp/MethodValuationCd | 12 | C |
| IRS990ScheduleD/OtherSecuritiesGrp/MethodValuationCd | 13 | C |
| IRS990ScheduleD/OtherSecuritiesGrp/MethodValuationCd | 14 | C |
| IRS990ScheduleD/OtherSecuritiesGrp/MethodValuationCd | 15 | C |
| IRS990ScheduleD/OtherSecuritiesGrp/MethodValuationCd | 16 | C |
| IRS990ScheduleD/OtherSecuritiesGrp/MethodValuationCd | 17 | C |
| IRS990ScheduleD/OtherSecuritiesGrp/MethodValuationCd | 18 | C |
| IRS990ScheduleD/OtherSecuritiesGrp/MethodValuationCd | 19 | C |
| IRS990ScheduleD/OtherSecuritiesGrp/MethodValuationCd | 20 | C |
| IRS990ScheduleD/OtherSecuritiesGrp/MethodValuationCd | 21 | C |
| IRS990ScheduleD/OtherSecuritiesGrp/MethodValuationCd | 22 | C |
| IRS990ScheduleD/TotalBookValueSecuritiesAmt | 0 | 51451146 |
| IRS990ScheduleI/GrantRecordsMaintainedInd | 0 | true |
| IRS990ScheduleI/RecipientTable/CashGrantAmt | 0 | 5080476 |
| IRS990ScheduleI/RecipientTable/IRCSectionDesc | 0 | 170(b)(1)(A) |
| IRS990ScheduleI/RecipientTable/PurposeOfGrantTxt | 0 | FOR SCIENTIFIC AND EDUCATIONAL USE |
| IRS990ScheduleI/RecipientTable/RecipientBusinessName/BusinessNameLine1Txt | 0 | HOLDEN ARBORETUM |
| IRS990ScheduleI/RecipientTable/RecipientEIN | 0 | 340750346 |
| IRS990ScheduleI/RecipientTable/USAddress/AddressLine1Txt | 0 | 9500 SPERRY ROAD |
| IRS990ScheduleI/RecipientTable/USAddress/CityNm | 0 | KIRTLAND |
| IRS990ScheduleI/RecipientTable/USAddress/StateAbbreviationCd | 0 | OH |
| IRS990ScheduleI/RecipientTable/USAddress/ZIPCd | 0 | 44094 |
| IRS990ScheduleI/SupplementalInformationDetail/ExplanationTxt | 0 | Grants are made to the Holden Arboretum as named in the trust document. Our administrative representatives are in periodic contact with representatives of the charity in order to be in compliance with the trust provisions. |
| IRS990ScheduleI/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | EXPLANATION FOR FORM 990, SCHEDULE I, PART 1, LINE 2 |
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| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | NO CONFLICT OF INTEREST POLICY EXISTS FOR THE TRUST. KEYBANK N A HAS A CORPORATE CONFLICT OF INTEREST POLICY. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | THE TRUST HAS NO WRITTEN DOCUMENT RETENTION OR DESTRUCTION POLICY. KEYBANK N A HAS A CORPORATE DOCUMENT RETENTION AND DESTRUCTION POLICY. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | KEYBANK NATIONAL ASSOCIATION IS SOLE TRUSTEE |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | ALL RETURNS ARE PREPARED AND THOROUGHLY REVIEWED BY OUR TAX VENDOR AND/OR INTERNAL PROFESSIONAL TAX DEPARTMENT |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 4 | KEYBANK IS SOLE TRUSTEE, IS COMPENSATED AS SUCH, AND MAKES ALL DECISIONS WITH RESPECT TO THE OPERATION AND ADMINISTRATION OF THE TRUST. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 5 | KEYBANK IS SOLE TRUSTEE, IS COMPENSATED AS SUCH, AND MAKES ALL DECISIONS WITH RESPECT TO THE OPERATION AND ADMINISTRATION OF THE TRUST. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 6 | DOCUMENTS ARE AVAILABLE UPON REQUEST BY MAIL OR BY PHONE AND DELIVERED WITHIN TWO WEEKS OF THE REQUEST. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 7 | DOCUMENTS ARE AVAILABLE UPON REQUEST BY MAIL OR BY PHONE AND DELIVERED WITHIN TWO WEEKS OF THE REQUEST. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 8 | Adjustment to cost to reflect Schedule K-1 information from various partnerships held in trust which report on a calendar year end. Trust is on a September fiscal year end. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART VI, SEC B, LINE 12a |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | PART VI, SEC B, LINE14 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | EXPLANATION FOR FORM 990, PAGE 6, PART VI, LINE 1a |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | FORM 990, PAGE 6, PART VI, LINE 11-DESCRIPTION OF PROCESS FOR REVIEW |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 4 | FORM 990, PAGE 6, PART VI, LINE 15a |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 5 | FORM 990, PAGE 6, PART VI, LINE 15b |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 6 | FORM 990, PAGE 6, PART VI, LINE 18 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 7 | FORM 990, PAGE 6, PART VI, LINE 19 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 8 | EXPLANATION FOR FORM 990, PART XI, LINE 9 |
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| ReturnHeader/BuildTS | 0 | 2025-03-06 01:10:19Z |
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| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | KEYBANK BY JOSEPH VELKOS |
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| ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt | 0 | PWC US TAX LLP |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt | 0 | 4300 E CAMELBACK ROAD STE 475 |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm | 0 | PHOENIX |
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| ReturnHeader/PreparerPersonGrp/PreparationDt | 0 | 2026-02-03 |
| ReturnHeader/PreparerPersonGrp/PreparerPersonNm | 0 | JEFFREY E KUHLIN |
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| ReturnHeader/ReturnTs | 0 | 2026-02-12T11:01:26-05:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990 |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2024-10-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2025-09-30 |
| ReturnHeader/TaxYr | 0 | 2024 |
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