Liabilities / Assets
35th percentile
Higher debt load relative to assets than 35% of similar nonprofits.
EIN 36-3573732 • 501(c)3 • Chicago, IL
Profile
The mission of the Griffin Theatre Company is to create extraordinary and meaningful theatrical experiences for both children and adults by building bridges of understanding between generations that instill in its audience an appreciation of the performing arts.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
35th percentile
Higher debt load relative to assets than 35% of similar nonprofits.
Liabilities / Revenue
50th percentile
Higher debt load relative to revenue than 50% of similar nonprofits.
Net Margin
28th percentile
Higher net margin than 28% of similar nonprofits.
Top Officer Pay
Score unavailable
No filing with officer rows is available for this organization yet.
Asset Growth
40th percentile
Faster asset growth than 40% of similar nonprofits.
Revenue Growth
84th percentile
Faster revenue growth than 84% of similar nonprofits.
Assets
Down$1,386,790
Down $13,624 (-1.0%) from 2024
Liabilities
Up$23,101
Up $4,505 (+24%) from 2024
Net Assets
Down$1,363,689
Down $18,129 (-1.3%) from 2024
Revenue
Down$286,793
Down $100,288 (-26%) from 2024
Expenses
Down$302,855
Down $49,140 (-14%) from 2024
Net Income
Down-$16,062
Down $51,148 (-146%) from 2024
Most recent year
2025 • Form 990Facts available. Structured filing facts are available, but richer extracted sections are limited.
Production and Presentation of Theatrical Works.
The Griffin Theatre Company is to create extraordinary and meaningful theatrical experiences for both children and adults by building bridges of understanding between generations that instill in its audience an appreciation of the performing arts.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Land, Buildings, and Equipment, Net | $1,363,410 | $1,363,410 | → $0 |
| Cash and Non-Interest-Bearing Accounts | $33,704 | $18,730 | ▼ $14,974 |
| Total Assets | $1,400,414 | $1,386,790 | ▼ $13,624 |
| Other Assets Total | $3,300 | $4,650 | ▲ $1,350 |
| Liabilities | |||
| Accounts Payable and Accrued Expenses | $16,550 | $23,101 | ▲ $6,551 |
| Unsecured Notes Loans Payable | $2,046 | - | - |
| Total Liabilities | $18,596 | $23,101 | ▲ $4,505 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $1,363,689 | $1,363,689 | → $0 |
| Net Assets With Donor Restrictions | $18,129 | $0 | ▼ $18,129 |
| Total Net Assets Fund Balance | $1,381,818 | $1,363,689 | ▼ $18,129 |
| Total Liabilities and Net Assets / Fund Balance | $1,400,414 | $1,386,790 | ▼ $13,624 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Buildings | $1,183,410 | - | - |
| Land | $180,000 | - | - |
| Equipment | $0 | $2,790 | - |
| Name | Title | Full / Part Time | Base | Total |
|---|---|---|---|---|
| William J Massolia | Artistic Director | FT | $45,000 | $45,000 |
| Name | Title |
|---|---|
| Mallory Vonrohn | President |
| Jason Vonrohn | Director |
| Lawrence Baldacci | Director |
| Lynda Shadrake | Secretary |
| Line Item | Amount |
|---|---|
| Other Expenses | $247,954 |
| Salaries, Compensation, and Employee Benefits | $54,901 |
| Total Fundraising Expense | $11,860 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Travel | $66,400 | - | - | $66,400 |
| Current Officers, Directors, Trustees, and Key Employees | $31,500 | $4,500 | $9,000 | $45,000 |
| All Other Expenses | - | $28,548 | - | $28,548 |
| Royalties | $19,065 | - | - | $19,065 |
| Occupancy | $10,010 | $1,430 | $2,860 | $14,300 |
| Insurance | - | $9,433 | - | $9,433 |
| Conferences and Meetings | - | $8,509 | - | $8,509 |
| Payroll Taxes | - | $6,426 | - | $6,426 |
| Advertising | $4,253 | - | - | $4,253 |
| Other Salaries and Wages | $3,125 | $350 | - | $3,475 |
| Other Expenses | $94,534 | $857 | - | $857 |
| Total Functional Expenses | $228,887 | $62,108 | $11,860 | $302,855 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
“All board members review draft of 990 and then vote on approval.”
“Documents will be available upon request.”
“Board members complete conflict of interest forms annually, monitor their affiliations throughout the year and are required to report any potential conflicts to the board chair. Should a conflict exist, the director is prohibited from participation in evaluation of the business involving the conflict.”
“The -$2067 is complete loss of piano damaged by landlord on move to new location. Not recorded on balance sheet.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
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| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 23101 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | The Griffin Theatre Company is to create extraordinary and meaningful theatrical experiences for both children and adults by building bridges of understanding between generations that instill in its audience an appreciation of the performing arts. |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 4253 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 4253 |
| IRS990/AllOtherContributionsAmt | 0 | 34167 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 28548 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 28548 |
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| IRS990/AuditCommitteeInd | 0 | false |
| IRS990/BackupWthldComplianceInd | 0 | false |
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| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 8725290657 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 5237 North Damen Avenue |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | Chicago |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | IL |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 60625 |
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| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 33704 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 18730 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
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| IRS990/CollectionsOfArtInd | 0 | false |
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| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 4500 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 31500 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 45000 |
| IRS990/CompDisqualPersonsGrp/ManagementAndGeneralAmt | 0 | 0 |
| IRS990/CompDisqualPersonsGrp/ProgramServicesAmt | 0 | 0 |
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| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | true |
| IRS990/CompensationProcessOtherInd | 0 | false |
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| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 8509 |
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| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
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| IRS990/CYOtherRevenueAmt | 0 | 0 |
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| IRS990/CYRevenuesLessExpensesAmt | 0 | -16062 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 54901 |
| IRS990/CYTotalExpensesAmt | 0 | 302855 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 11860 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 286793 |
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| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/Desc | 0 | The creation of live theatrical presentations. |
| IRS990/DescribedInSection501c3Ind | 0 | true |
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| IRS990/DocumentRetentionPolicyInd | 0 | true |
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| IRS990/DonorAdvisedFundInd | 0 | false |
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| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 0 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 1 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | true |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/ExcsTaxSect4951Or4952Or4953Ind | 0 | false |
| IRS990/ExpenseAmt | 0 | 191150 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/FederatedCampaignsAmt | 0 | 0 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/KeyEmployeeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | Mallory Vonrohn |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | Lynda Shadrake |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | Jason Vonrohn |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | Lawrence Baldacci |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | William J Massolia |
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| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 45000 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | President |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | Secretary |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | Artistic Director |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/Form990TFiledInd | 0 | false |
| IRS990/FormationYr | 0 | 1988 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedInd | 0 | false |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/FundraisingAmt | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 5 |
| IRS990/GovernmentGrantsAmt | 0 | 10000 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 286793 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IndependentAuditFinclStmtInd | 0 | false |
| IRS990/IndependentVotingMemberCnt | 0 | 0 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIInd | 0 | X |
| IRS990/InitialReturnInd | 0 | X |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 9433 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 9433 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 1363410 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 1363410 |
| IRS990/LegalDomicileStateCd | 0 | IL |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembershipDuesAmt | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | false |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | the Griffin Theatre Company is to create extraordinary and meaningful theatrical experiences for both children and adults by building bridges of understanding between generations that instill in its audience an appreciation of the performing arts. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 1381818 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 1363689 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 1363689 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 1363689 |
| IRS990/NoncashContributionsAmt | 0 | 0 |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 2860 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 1430 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 10010 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 14300 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 3300 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 4650 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | -2067 |
| IRS990/OtherExpensesGrp/Desc | 0 | Dues and subscriptions |
| IRS990/OtherExpensesGrp/Desc | 1 | Production Expenses |
| IRS990/OtherExpensesGrp/Desc | 2 | Bank and credit card fees |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 2055 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 857 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 94534 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 2055 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 94534 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 857 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 350 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 3125 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 3475 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 6426 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 6426 |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrincipalOfcrBusinessName/BusinessNameLine1Txt | 0 | William J Massolia |
| IRS990/PriorPeriodAdjustmentsAmt | 0 | 0 |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 71844 |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 0 |
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| IRS990/PYOtherRevenueAmt | 0 | 0 |
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| IRS990/PYRevenuesLessExpensesAmt | 0 | 35086 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 54926 |
| IRS990/PYTotalExpensesAmt | 0 | 351995 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 387081 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | -16062 |
| IRS990/RegularMonitoringEnfrcInd | 0 | true |
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| IRS990/ReportOtherLiabilitiesInd | 0 | false |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/RevenueAmt | 0 | 286793 |
| IRS990/RoyaltiesGrp/ProgramServicesAmt | 0 | 19065 |
| IRS990/RoyaltiesGrp/TotalAmt | 0 | 19065 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt | 0 | 44167 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt | 0 | 71844 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 61838 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 282692 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 87372 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 547913 |
| IRS990ScheduleA/OtherSupportSumAmt | 0 | 0 |
| IRS990ScheduleA/PublicOrganization170Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 1.00000 |
| IRS990ScheduleA/PublicSupportPY170Pct | 0 | 1.00000 |
| IRS990ScheduleA/PublicSupportTotal170Amt | 0 | 547913 |
| IRS990ScheduleA/SupportedOrganizationsCnt | 0 | 0 |
| IRS990ScheduleA/SupportedOrganizationsTotalCnt | 0 | 0 |
| IRS990ScheduleA/SupportSumAmt | 0 | 0 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsPY170Ind | 0 | X |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearAmt | 0 | 44167 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus1YearAmt | 0 | 71844 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 61838 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 282692 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 87372 |
| IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt | 0 | 547913 |
| IRS990ScheduleA/TotalSupportAmt | 0 | 547913 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine2 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/State | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCode | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 0 | RESTRICTED |
| IRS990/ScheduleBRequiredInd | 0 | true |
| IRS990ScheduleD/BuildingsGrp/BookValueAmt | 0 | 1183410 |
| IRS990ScheduleD/BuildingsGrp/InvestmentCostOrOtherBasisAmt | 0 | 1183410 |
| IRS990ScheduleD/EquipmentGrp/BookValueAmt | 0 | 0 |
| IRS990ScheduleD/EquipmentGrp/DepreciationAmt | 0 | 2790 |
| IRS990ScheduleD/EquipmentGrp/InvestmentCostOrOtherBasisAmt | 0 | 2790 |
| IRS990ScheduleD/LandGrp/BookValueAmt | 0 | 180000 |
| IRS990ScheduleD/LandGrp/InvestmentCostOrOtherBasisAmt | 0 | 180000 |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 1363410 |
| IRS990/ScheduleJRequiredInd | 0 | false |
| IRS990/ScheduleORequiredInd | 0 | true |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | All board members review draft of 990 and then vote on approval. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | Documents will be available upon request. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | Board members complete conflict of interest forms annually, monitor their affiliations throughout the year and are required to report any potential conflicts to the board chair. Should a conflict exist, the director is prohibited from participation in evaluation of the business involving the conflict. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | The -$2067 is complete loss of piano damaged by landlord on move to new location. Not recorded on balance sheet. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Part VI, Line 11b |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | Part VI, Line 19 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | Part VI, Line 1a |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | Part XI, Line 9 |
| IRS990/SchoolOperatingInd | 0 | false |
| IRS990/SignificantChangeInd | 0 | false |
| IRS990/SignificantNewProgramSrvcInd | 0 | false |
| IRS990/StatesWhereCopyOfReturnIsFldCd | 0 | IL |
| IRS990/SubjectToExcsTaxNetInvstIncInd | 0 | false |
| IRS990/SubjectToProxyTaxInd | 0 | false |
| IRS990/SubjToTaxRmnrtnExPrchtPymtInd | 0 | false |
| IRS990/TaxablePartyNotificationInd | 0 | false |
| IRS990/TaxExemptBondsInd | 0 | false |
| IRS990/TerminateOperationsInd | 0 | false |
| IRS990/TotalAssetsBOYAmt | 0 | 1400414 |
| IRS990/TotalAssetsEOYAmt | 0 | 1386790 |
| IRS990/TotalAssetsGrp/BOYAmt | 0 | 1400414 |
| IRS990/TotalAssetsGrp/EOYAmt | 0 | 1386790 |
| IRS990/TotalCompGreaterThan150KInd | 0 | false |
| IRS990/TotalContributionsAmt | 0 | 44167 |
| IRS990/TotalEmployeeCnt | 0 | 1 |
| IRS990/TotalFunctionalExpensesGrp/FundraisingAmt | 0 | 11860 |
| IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt | 0 | 62108 |
| IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt | 0 | 228887 |
| IRS990/TotalFunctionalExpensesGrp/TotalAmt | 0 | 302855 |
| IRS990/TotalGrossUBIAmt | 0 | 0 |
| IRS990/TotalLiabilitiesBOYAmt | 0 | 18596 |
| IRS990/TotalLiabilitiesEOYAmt | 0 | 23101 |
| IRS990/TotalLiabilitiesGrp/BOYAmt | 0 | 18596 |
| IRS990/TotalLiabilitiesGrp/EOYAmt | 0 | 23101 |
| IRS990/TotalNetAssetsFundBalanceGrp/BOYAmt | 0 | 1381818 |
| IRS990/TotalNetAssetsFundBalanceGrp/EOYAmt | 0 | 1363689 |
| IRS990/TotalOtherCompensationAmt | 0 | 0 |
| IRS990/TotalOthProgramServiceRevGrp/RelatedOrExemptFuncIncomeAmt | 0 | 242626 |
| IRS990/TotalOthProgramServiceRevGrp/TotalRevenueColumnAmt | 0 | 242626 |
| IRS990/TotalProgramServiceExpensesAmt | 0 | 191150 |
| IRS990/TotalProgramServiceRevenueAmt | 0 | 242626 |
| IRS990/TotalReportableCompFromOrgAmt | 0 | 45000 |
| IRS990/TotalRevenueGrp/ExclusionAmt | 0 | 0 |
| IRS990/TotalRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 242626 |
| IRS990/TotalRevenueGrp/TotalRevenueColumnAmt | 0 | 286793 |
| IRS990/TotalRevenueGrp/UnrelatedBusinessRevenueAmt | 0 | 0 |
| IRS990/TotalVolunteersCnt | 0 | 12 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/BOYAmt | 0 | 1400414 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/EOYAmt | 0 | 1386790 |
| IRS990/TotReportableCompRltdOrgAmt | 0 | 0 |
| IRS990/TransactionWithControlEntInd | 0 | false |
| IRS990/TravelGrp/ProgramServicesAmt | 0 | 66400 |
| IRS990/TravelGrp/TotalAmt | 0 | 66400 |
| IRS990/TrnsfrExmptNonChrtblRltdOrgInd | 0 | false |
| IRS990/TypeOfOrganizationCorpInd | 0 | X |
| IRS990/UnrelatedBusIncmOverLimitInd | 0 | false |
| IRS990/UnsecuredNotesLoansPayableGrp/BOYAmt | 0 | 2046 |
| IRS990/UponRequestInd | 0 | X |
| IRS990/USAddress/AddressLine1Txt | 0 | 5237 North Damen Avenue |
| IRS990/USAddress/CityNm | 0 | Chicago |
| IRS990/USAddress/StateAbbreviationCd | 0 | IL |
| IRS990/USAddress/ZIPCd | 0 | 60625 |
| IRS990/VotingMembersGoverningBodyCnt | 0 | 5 |
| IRS990/VotingMembersIndependentCnt | 0 | 0 |
| IRS990/WebsiteAddressTxt | 0 | HTTPS://Griffintheatre.com |
| IRS990/WhistleblowerPolicyInd | 0 | true |
| ReasonableCauseExplanation/ExplanationTxt | 0 | I did not receive final financial numbers in time from accountant. We did apply for extension. |
| ReturnHeader/BuildTS | 0 | 2025-03-06 01:10:19Z |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | William J Massolia |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | Director |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 8725290657 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2025-11-23 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | GRIFFIN THEATRE COMPANY |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | GRIF |
| ReturnHeader/Filer/EIN | 0 | 363573732 |
| ReturnHeader/Filer/PhoneNum | 0 | 8725290657 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | 5237 North Damen Avenue |
| ReturnHeader/Filer/USAddress/CityNm | 0 | Chicago |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | IL |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 60625 |
| ReturnHeader/ReturnTs | 0 | 2025-11-23T23:04:55Z |
| ReturnHeader/ReturnTypeCd | 0 | 990 |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2024-07-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2025-06-30 |
| ReturnHeader/TaxYr | 0 | 2024 |
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