PROPRIETORS OF THE BOSTON ATHENAEUM: Form 990, tax year 2024

View the entire original 990 at ProPublica ↗

Organization
PROPRIETORS OF THE BOSTON ATHENAEUM (EIN 04-2104852)
Tax period
2024-10-01 to 2025-09-30
Filed
2026-08-11
IRS object ID
202622239349301342
Schema version
2024v5.5
Source
Download XML · Original 990 at ProPublica

Every field in the e-filed return. Faint text is the IRS element name, for citing.

Return header ReturnHeader

FieldValueIRS element (for citing)
Return2026-08-11T15:30:20-05:00ReturnTs
Tax Period End2025-09-30TaxPeriodEndDt

Preparer Firm PreparerFirmGrp

FieldValueIRS element (for citing)
Preparer Firm EIN042571780PreparerFirmEIN

Preparer Firm Name PreparerFirmName

FieldValueIRS element (for citing)
Business Name Line1AAFCPAS INCBusinessNameLine1Txt

Preparer US Address PreparerUSAddress

FieldValueIRS element (for citing)
Address Line150 WASHINGTON STREETAddressLine1Txt
CityWESTBOROUGHCityNm
State AbbreviationMAStateAbbreviationCd
ZIP01581ZIPCd
FieldValueIRS element (for citing)
Return Type990ReturnTypeCd
Tax Period Begin2024-10-01TaxPeriodBeginDt

Filer Filer

FieldValueIRS element (for citing)
EIN042104852EIN

Business Name BusinessName

FieldValueIRS element (for citing)
Business Name Line1PROPRIETORS OF THE BOSTON ATHENAEUMBusinessNameLine1Txt
FieldValueIRS element (for citing)
Business Name ControlPROPBusinessNameControlTxt
Phone6172270270PhoneNum

US Address USAddress

FieldValueIRS element (for citing)
Address Line110 12 BEACON STREETAddressLine1Txt
CityBOSTONCityNm
State AbbreviationMAStateAbbreviationCd
ZIP02108ZIPCd

Business Officer BusinessOfficerGrp

FieldValueIRS element (for citing)
PersonF JAVIER CEVALLOSPersonNm
Person TitleTREASURERPersonTitleTxt
Phone6172270270PhoneNum
Signature2026-08-11SignatureDt
Discuss With Paid PreparerYes (1)DiscussWithPaidPreparerInd
FieldValueIRS element (for citing)
IRS Responsible Prty Info CurrYes (1)IRSResponsiblePrtyInfoCurrInd

Preparer Person PreparerPersonGrp

FieldValueIRS element (for citing)
Preparer PersonTHOMAS F MULDOON CPAPreparerPersonNm
PTINP01561688PTIN
Phone5083669100PhoneNum
Preparation2026-08-11PreparationDt
FieldValueIRS element (for citing)
Tax2024TaxYr
Build TS2025-03-06 01:10:19ZBuildTS

Form 990 IRS990

FieldValueIRS element (for citing)
Address ChangeYes (X)AddressChangeInd
Principal OfficerLEAH ROSOVSKYPrincipalOfficerNm

US Address USAddress

FieldValueIRS element (for citing)
Address Line110 1/2 BEACON STREETAddressLine1Txt
CityBOSTONCityNm
State AbbreviationMAStateAbbreviationCd
ZIP02108ZIPCd
FieldValueIRS element (for citing)
Gross Receipts$49,874,204GrossReceiptsAmt
Group Return For Affiliates0GroupReturnForAffiliatesInd
Organization501c3Yes (X)Organization501c3Ind
Website AddressWWW.BOSTONATHENAEUM.ORGWebsiteAddressTxt
Type Of Organization CorpYes (X)TypeOfOrganizationCorpInd
Formation1807FormationYr
Legal Domicile StateMALegalDomicileStateCd
Activity Or MissionSEE SCHEDULE O.ActivityOrMissionDesc
Voting Members Governing Body20VotingMembersGoverningBodyCnt
Voting Members Independent20VotingMembersIndependentCnt
Total Employee86TotalEmployeeCnt
Total Volunteers113TotalVolunteersCnt
Total Gross UBI-$14,849TotalGrossUBIAmt
Net Unrelated Bus Txbl Incm$0NetUnrelatedBusTxblIncmAmt
PY Contributions Grants$2,997,595PYContributionsGrantsAmt
CY Contributions Grants$4,134,636CYContributionsGrantsAmt
PY Program Service Revenue$1,842,865PYProgramServiceRevenueAmt
CY Program Service Revenue$2,179,117CYProgramServiceRevenueAmt
PY Investment Income$3,845,691PYInvestmentIncomeAmt
CY Investment Income$2,934,128CYInvestmentIncomeAmt
PY Other Revenue$358,643PYOtherRevenueAmt
CY Other Revenue$499,432CYOtherRevenueAmt
PY Total Revenue$9,044,794PYTotalRevenueAmt
CY Total Revenue$9,747,313CYTotalRevenueAmt
PY Grants And Similar Paid$14,750PYGrantsAndSimilarPaidAmt
CY Grants And Similar Paid$12,000CYGrantsAndSimilarPaidAmt
PY Benefits Paid To Members$0PYBenefitsPaidToMembersAmt
CY Benefits Paid To Members$0CYBenefitsPaidToMembersAmt
PY Salaries Comp Emp Bnft Paid$5,663,860PYSalariesCompEmpBnftPaidAmt
CY Salaries Comp Emp Bnft Paid$5,998,737CYSalariesCompEmpBnftPaidAmt
PY Total Prof Fndrsng Expns$0PYTotalProfFndrsngExpnsAmt
CY Total Prof Fndrsng Expns$55,129CYTotalProfFndrsngExpnsAmt
CY Total Fundraising Expense$1,238,169CYTotalFundraisingExpenseAmt
PY Other Expenses$7,479,570PYOtherExpensesAmt
CY Other Expenses$7,097,033CYOtherExpensesAmt
PY Total Expenses$13,158,180PYTotalExpensesAmt
CY Total Expenses$13,162,899CYTotalExpensesAmt
PY Revenues Less Expenses-$4,113,386PYRevenuesLessExpensesAmt
CY Revenues Less Expenses-$3,415,586CYRevenuesLessExpensesAmt
Total Assets BOY$137,181,343TotalAssetsBOYAmt
Total Assets EOY$138,521,803TotalAssetsEOYAmt
Total Liabilities BOY$18,503,893TotalLiabilitiesBOYAmt
Total Liabilities EOY$18,044,208TotalLiabilitiesEOYAmt
Net Assets Or Fund Balances BOY$118,677,450NetAssetsOrFundBalancesBOYAmt
Net Assets Or Fund Balances EOY$120,477,595NetAssetsOrFundBalancesEOYAmt
Info In Schedule O Part IIIYes (X)InfoInScheduleOPartIIIInd
MissionSEE SCHEDULE O.MissionDesc
Significant New Program Srvc0SignificantNewProgramSrvcInd
Significant Change0SignificantChangeInd
Expense$4,468,659ExpenseAmt
Grant$12,000GrantAmt
Revenue$1,875,781RevenueAmt
DescLIBRARY SERVICES - SEE SCHEDULE O.LIBRARY SERVICES - THE LIBRARY IS THE LARGEST PROGRAMMATIC ACTIVITY OF THE BOSTON ATHENAEUM, SERVING APPROXIMATELY 5,000 MEMBERS, THEIR FAMILIES, THE SCHOLARLY COMMUNITY, STUDENTS, AND OTHER MEMBERS OF THE PUBLIC. IT IS COMPOSED OF TWO PRINCIPAL DEPARTMENTS: READER SERVICES AND TECHNICAL SERVICES. READER SERVICES AT THE BOSTON ATHENAEUM COMPRISES THE PUBLIC DEPARTMENTS THAT OFFER LIBRARY SERVICES. THE HEAD OF READER SERVICES AND THE ARCHIVIST/REFERENCE LIBRARIAN WORK AT THE REFERENCE DESK; THEY ANSWER HUNDREDS OF MEMBERS AND RESEARCHERS' QUESTIONS AND ASSIST IN THE USE OF CIRCULATING MATERIALS, SPECIAL COLLECTIONS, ELECTRONIC RESOURCES, AND ONLINE RESEARCH. THOUSANDS OF RARE MATERIALS ARE PROVIDED FOR THE 200-300 RESEARCHERS WHO USE THE SPECIAL COLLECTIONS READING ROOM EVERY YEAR. THE HEAD OF CIRCULATION AND THE READER SERVICES ASSISTANT MANAGE ACTIVITY AT THE CIRCULATION DESK, WHERE ROUGHLY 18,000 ITEMS CIRCULATE EACH YEAR. FIVE INTERNS ASSIST AT CIRCULATION AND REFERENCE. THE CHILDREN'S LIBRARIAN HELPS YOUNGER MEMBERS USE THE CHILDREN'S LIBRARY, AND OFFERS PROGRAMS INCLUDING STORY HOURS AND READING GROUPS, DESIGNED SPECIFICALLY FOR CHILDREN. NINETEEN DISCUSSION GROUPS AND OVER 150 TOURS OF THE BUILDING ARE ARRANGED BY READER SERVICES EVERY YEAR. THE TECHNICAL SERVICES DEPARTMENT, MANAGED BY THE CHIEF TECHNICAL SERVICES LIBRARIAN, ENCOMPASSES THE FUNCTIONS OF ACQUISITIONS, CATALOGING, SERIALS, CONSERVATION, AND DIGITIZATION. THE UNITS OF ACQUISITIONS, CATALOGING, AND SERIALS INCLUDE, AN ACQUISITIONS LIBRARIAN, A SERIALS LIBRARIAN, THREE RARE MATERIALS CATALOG LIBRARIANS, TWO CATALOGING ASSISTANTS, AND THREE INTERNS. THEY ARE RESPONSIBLE FOR SELECTING, ACQUIRING, ACCESSIONING, INVOICING, CATALOGING, AND PROCESSING APPROXIMATELY 2,700 ADDITIONS TO THE LIBRARY PER YEAR, INCLUDING BOTH NEW IMPRINTS AND RARE HISTORICAL VOLUMES. THE DEPARTMENT ALSO AUGMENTS APPROXIMATELY 3,000 LEGACY CATALOGING RECORDS PER YEAR.Desc

Prog Srvc Accom Acty2 ProgSrvcAccomActy2Grp

FieldValueIRS element (for citing)
Expense$4,108,191ExpenseAmt
DescSPECIAL COLLECTIONS - SEE SCHEDULE O.SPECIAL COLLECTIONS - THE SPECIAL COLLECTIONS DEPARTMENT IS COMPOSED OF THE CURATORS WHO OVERSEE THE ACQUISITION, MAINTENANCE, AND EXHIBITION OF RARE BOOKS, ARCHIVAL DOCUMENTS, MANUSCRIPTS, MAPS, AND WORKS OF ART. DEPARTMENT STAFF MEMBERS INCLUDE THE CURATOR OF RARE BOOKS AND MANUSCRIPTS, THE CURATOR OF PAINTINGS AND SCULPTURE, THE ASSOCIATE CURATOR OF PAINTINGS AND SCULPTURE, THE ARCHIVIST, AND THE CURATOR OF PRINTS AND PHOTOGRAPHS. THE CURATORS RESEARCH OBJECTS IN THE COLLECTIONS AND DISSEMINATE INFORMATION ABOUT THEM TO THE SCHOLARLY COMMUNITY AT LARGE AND TO THE PUBLIC THROUGH LECTURES, PUBLICATIONS, AND (IN COOPERATION WITH LIBRARIES, ARCHIVES, AND MUSEUMS AROUND THE COUNTRY) AN ACTIVE LOAN PROGRAM. EACH YEAR, ON SITE, THE CURATORS ASSIST HUNDREDS OF ATHENAEUM MEMBERS AND VISITING SCHOLARS IN RESEARCHING THE ATHENAEUM'S COLLECTIONS. THE CURATORIAL STAFF MOUNTS TWO OR THREE EXHIBITIONS PER YEAR COVERING A RANGE OF HISTORICAL AND CONTEMPORARY SUBJECTS. THESE EXHIBITIONS ARE ACCOMPANIED BY GALLERY TALKS, LECTURES, AND SYMPOSIA, ALL OF WHICH ARE OPEN TO THE PUBLIC.Desc

Prog Srvc Accom Acty3 ProgSrvcAccomActy3Grp

FieldValueIRS element (for citing)
Expense$1,400,712ExpenseAmt
Revenue$61,284RevenueAmt
DescLECTURES & CONCERTS - SEE SCHEDULE O.LECTURES & CONCERTS - THE LECTURES AND CONCERTS PROGRAM INCLUDES APPROXIMATELY 100 EVENTS EACH YEAR, SUCH AS AUTHOR TALKS, LECTURES, CONCERTS, CHILDREN'S EVENTS, EXHIBITION RECEPTIONS AND MOVIES. EVENTS TAKE PLACE BOTH IN THE EVENING AND DURING THE DAY AND INCLUDE EVENTS THAT ARE OPEN TO THE GENERAL PUBLIC AS WELL AS EVENTS FOR ATHENAEUM MEMBERS.Desc

Prog Srvc Accom Acty Other ProgSrvcAccomActyOtherGrp

FieldValueIRS element (for citing)
Expense$658,637ExpenseAmt
Revenue$242,052RevenueAmt
DescCONSERVATION - SINCE 1963, THE CONSERVATION LABORATORY HAS BEEN DEDICATED TO THE LONG-TERM PRESERVATION OF THE ATHENAEUM'S HOLDINGS WITH INHERENT HISTORIC ARTISTIC OR LITERARY VALUE. THE CONSERVATION DEPARTMENT INCLUDES THE CHIEF CONSERVATOR AND THE ASSOCIATE CONSERVATOR, AND SEVERAL INTERNS AND FELLOWS. ATHENAEUM CONSERVATORS PERFORM CONSERVATION TREATMENTS ON RARE AND CIRCULATING BOOKS, MAPS, MANUSCRIPTS, PRINTS, ARCHITECTURAL DRAWINGS, BROADSIDES, AND PAMPHLETS, AND FOLLOW PREVENTIVE CONSERVATION PROTOCOLS.DIGITAL PROGRAMS - THE DIGITAL PROGRAMS DEPARTMENT IS DEDICATED TO THE ENHANCEMENT OF SCHOLARLY ACCESS TO THE COLLECTIONS THROUGH DIGITIZATION. THE HEAD OF DIGITAL PROGRAMS AND TWO INTERNS SCAN COLLECTION MATERIALS IN THE IMAGING STUDIO AND CREATE ONLINE RECORDSCONTAINING DIGITAL SURROGATES WITH THEIR CORRESPONDING METADATA. THESE EFFORTS ENSURE THAT ATHENAEUM COLLECTIONS ARE AVAILABLE FREELY ONLINE TO SCHOLARS, RESEARCHERS, STUDENTS, AND TO ANYONE IN THE WORLD WITH AN INTERNET CONNECTION.Desc
FieldValueIRS element (for citing)
Total Other Prog Srvc Expense$658,637TotalOtherProgSrvcExpenseAmt
Total Other Prog Srvc Revenue$242,052TotalOtherProgSrvcRevenueAmt
Total Program Service Expenses$10,636,199TotalProgramServiceExpensesAmt
Described In Section501c3Yes (1)DescribedInSection501c3Ind
Schedule B RequiredYes (1)ScheduleBRequiredInd
Political Campaign Acty0PoliticalCampaignActyInd
Lobbying Activities0LobbyingActivitiesInd
Subject To Proxy Tax0SubjectToProxyTaxInd
Donor Advised Fund0DonorAdvisedFundInd
Conservation Easements0ConservationEasementsInd
Collections Of ArtYes (1)CollectionsOfArtInd
Credit Counseling0CreditCounselingInd
Donor Rstr Or Quasi EndowmentsYes (1)DonorRstrOrQuasiEndowmentsInd
Report Land Building EquipmentYes (1)ReportLandBuildingEquipmentInd
Report Investments Other SecYes (1)ReportInvestmentsOtherSecInd
Report Program Related Invst0ReportProgramRelatedInvstInd
Report Other AssetsYes (1)ReportOtherAssetsInd
Report Other LiabilitiesYes (1)ReportOtherLiabilitiesInd
Include FIN48 FootnoteYes (1)IncludeFIN48FootnoteInd
Independent Audit Fincl Stmt0IndependentAuditFinclStmtInd
Consolidated Audit Fincl StmtYes (1)ConsolidatedAuditFinclStmtInd
School Operating0SchoolOperatingInd
Foreign Office0ForeignOfficeInd
Foreign Activities0ForeignActivitiesInd
More Than5000 K To Org0MoreThan5000KToOrgInd
More Than5000 K To Individuals0MoreThan5000KToIndividualsInd
Professional FundraisingYes (1)ProfessionalFundraisingInd
Fundraising Activities0FundraisingActivitiesInd
Gaming Activities0GamingActivitiesInd
Operate Hospital0OperateHospitalInd
Grants To Organizations0GrantsToOrganizationsInd
Grants To IndividualsYes (1)GrantsToIndividualsInd
Schedule J RequiredYes (1)ScheduleJRequiredInd
Tax Exempt Bonds0TaxExemptBondsInd
Engaged In Excess Benefit Trans0EngagedInExcessBenefitTransInd
PY Excess Benefit Trans0PYExcessBenefitTransInd
Loan Outstanding0LoanOutstandingInd
Grant To Related Person0GrantToRelatedPersonInd
Business Rln With Org Mem0BusinessRlnWithOrgMemInd
Business Rln With Fam Mem0BusinessRlnWithFamMemInd
Business Rln With35 Ctrl Ent0BusinessRlnWith35CtrlEntInd
Deductible Non Cash ContriYes (1)DeductibleNonCashContriInd
Deductible Art ContributionYes (1)DeductibleArtContributionInd
Terminate Operations0TerminateOperationsInd
Partial Liquidation0PartialLiquidationInd
Disregarded Entity0DisregardedEntityInd
Related EntityYes (1)RelatedEntityInd
Related Organization Ctrl EntYes (1)RelatedOrganizationCtrlEntInd
Transaction With Control EntYes (1)TransactionWithControlEntInd
Trnsfr Exmpt Non Chrtbl Rltd Org0TrnsfrExmptNonChrtblRltdOrgInd
Activities Conducted Prtshp0ActivitiesConductedPrtshpInd
Schedule O RequiredYes (1)ScheduleORequiredInd
IRP Document47IRPDocumentCnt
IRP Document W2 G0IRPDocumentW2GCnt
Backup Wthld ComplianceYes (1)BackupWthldComplianceInd
Employee86EmployeeCnt
Employment Tax Returns FiledYes (1)EmploymentTaxReturnsFiledInd
Unrelated Bus Incm Over LimitYes (1)UnrelatedBusIncmOverLimitInd
Form990 T FiledYes (1)Form990TFiledInd
Foreign Financial Account0ForeignFinancialAccountInd
Prohibited Tax Shelter Trans0ProhibitedTaxShelterTransInd
Taxable Party Notification0TaxablePartyNotificationInd
Nondeductible Contributions0NondeductibleContributionsInd
Quid Pro Quo Contributions0QuidProQuoContributionsInd
Form8282 Property Disposed Of0Form8282PropertyDisposedOfInd
Rcv Fnds To Pay Prsnl Bnft Cntrct0RcvFndsToPayPrsnlBnftCntrctInd
Pay Premiums Prsnl Bnft Cntrct0PayPremiumsPrsnlBnftCntrctInd
Indoor Tanning Services0IndoorTanningServicesInd
Subj To Tax Rmnrtn Ex Prcht Pymt0SubjToTaxRmnrtnExPrchtPymtInd
Subject To Excs Tax Net Invst Inc0SubjectToExcsTaxNetInvstIncInd
Info In Schedule O Part VIYes (X)InfoInScheduleOPartVIInd
Governing Body Voting Members20GoverningBodyVotingMembersCnt
Independent Voting Member20IndependentVotingMemberCnt
Family Or Business Rln0FamilyOrBusinessRlnInd
Delegation Of Mgmt Duties0DelegationOfMgmtDutiesInd
Change To Org DocumentsYes (1)ChangeToOrgDocumentsInd
Material Diversion Or Misuse0MaterialDiversionOrMisuseInd
Members Or StockholdersYes (1)MembersOrStockholdersInd
Election Of Board MembersYes (1)ElectionOfBoardMembersInd
Decisions Subject To Approva0DecisionsSubjectToApprovaInd
Minutes Of Governing BodyYes (1)MinutesOfGoverningBodyInd
Minutes Of CommitteesYes (1)MinutesOfCommitteesInd
Officer Mailing Address0OfficerMailingAddressInd
Local Chapters0LocalChaptersInd
Form990 Provided To Gvrn BodyYes (1)Form990ProvidedToGvrnBodyInd
Conflict Of Interest PolicyYes (1)ConflictOfInterestPolicyInd
Annual Disclosure Covered PrsnYes (1)AnnualDisclosureCoveredPrsnInd
Regular Monitoring EnfrcYes (1)RegularMonitoringEnfrcInd
Whistleblower PolicyYes (1)WhistleblowerPolicyInd
Document Retention PolicyYes (1)DocumentRetentionPolicyInd
Compensation Process CEOYes (1)CompensationProcessCEOInd
Compensation Process OtherYes (1)CompensationProcessOtherInd
Investment In Joint Venture0InvestmentInJointVentureInd
States Where Copy Of Return Is FldMAStatesWhereCopyOfReturnIsFldCd
Own WebsiteYes (X)OwnWebsiteInd
Other WebsiteYes (X)OtherWebsiteInd
Upon RequestYes (X)UponRequestInd

Books In Care Of Detail BooksInCareOfDetail

Business Name BusinessName

FieldValueIRS element (for citing)
Business Name Line1CHRISTOPHER J BOUDROTBusinessNameLine1Txt
FieldValueIRS element (for citing)
Phone6177207642PhoneNum

US Address USAddress

FieldValueIRS element (for citing)
Address Line110 1/2 BEACON STREETAddressLine1Txt
CityBOSTONCityNm
State AbbreviationMAStateAbbreviationCd
ZIP02108ZIPCd

Form990 Part VII Section A Form990PartVIISectionAGrp (27 entries)

TitleTitleTxtAverage Hours Per WeekAverageHoursPerWeekRtAverage Hours Per Week Rltd OrgAverageHoursPerWeekRltdOrgRtIndividual Trustee Or DirectorIndividualTrusteeOrDirectorIndOfficerOfficerIndReportable Comp From OrgReportableCompFromOrgAmtReportable Comp From Rltd OrgReportableCompFromRltdOrgAmtOther CompensationOtherCompensationAmtHighest Compensated EmployeeHighestCompensatedEmployeeInd
TIMOTHY W DIGGINS
PRESIDENT2.002.00Yes (X)Yes (X)$0$0$0
SUSAN B WEATHERBIE
VICE PRESIDENT2.002.00Yes (X)Yes (X)$0$0$0
MELISSA FETTER
VICE PRESIDENT2.002.00Yes (X)Yes (X)$0$0$0
F JAVIER CEVALLOS
TREASURER2.002.00Yes (X)Yes (X)$0$0$0
ARTHUR B PAGE
SECRETARY2.002.00Yes (X)Yes (X)$0$0$0
EARL M COLLIER JR
TRUSTEE2.002.00Yes (X)$0$0$0
MICHAEL EWALD
TRUSTEE2.000.00Yes (X)$0$0$0
JOHN S REED
TRUSTEE2.000.00Yes (X)$0$0$0
ROGER HAYNES
TRUSTEE2.002.00Yes (X)$0$0$0
TIMOTHY CODRINGTON
TRUSTEE2.000.00Yes (X)$0$0$0
PERRIN GRAYSON
TRUSTEE2.000.00Yes (X)$0$0$0
SARAH PERRY
TRUSTEE2.000.00Yes (X)$0$0$0
NANCY MAULL
TRUSTEE2.000.00Yes (X)$0$0$0
AMY RYAN
TRUSTEE2.002.00Yes (X)$0$0$0
CREELEA HENDERSON PANGARO
TRUSTEE2.002.00Yes (X)$0$0$0
CATHERINE POWELL
TRUSTEE2.000.00Yes (X)$0$0$0
AUSTIN V SHAPARD
TRUSTEE2.002.00Yes (X)$0$0$0
WINSTON LANGLEY
TRUSTEE2.000.00Yes (X)$0$0$0
ANNIE MACLACHLAN LEWIS
TRUSTEE2.000.00Yes (X)$0$0$0
GEORGE RAINE
TRUSTEE2.000.00Yes (X)$0$0$0
LEAH ROSOVSKY
DIRECTOR35.002.00Yes (X)$362,733$0$30,675
CHRISTOPHER J BOUDROT
DIRECTOR OF FINANCE35.002.00Yes (X)$180,811$0$39,466
BRIDGET KEANE
DIRECTOR OF DEVELOPMENT35.000.00$250,767$0$45,635Yes (X)
JOHN BUCHTEL
CURATOR,RARE BOOKS/SPEC. COLLECTIONS35.000.00$166,392$0$32,009Yes (X)
GREGORY MORRIS
DIRECTOR OF FACILITIES AND SECURITY35.000.00$149,224$0$28,119Yes (X)
JACQUELINE CHAMBERS
MAJOR GIFT OFFICER35.000.00$117,397$0$27,158Yes (X)
ANDRIA LAURIA
I.T. MANAGER35.000.00$109,951$0$26,387Yes (X)
FieldValueIRS element (for citing)
Total Reportable Comp From Org$1,337,275TotalReportableCompFromOrgAmt
Tot Reportable Comp Rltd Org$0TotReportableCompRltdOrgAmt
Total Other Compensation$229,449TotalOtherCompensationAmt
Indiv Rcvd Greater Than100 K8IndivRcvdGreaterThan100KCnt
Former Ofcr Employees Listed0FormerOfcrEmployeesListedInd
Total Comp Greater Than150 KYes (1)TotalCompGreaterThan150KInd
Compensation From Other Srcs0CompensationFromOtherSrcsInd

Contractor Compensation ContractorCompensationGrp (4 entries)

Address Line1ContractorAddress/USAddress/AddressLine1TxtCityContractorAddress/USAddress/CityNmState AbbreviationContractorAddress/USAddress/StateAbbreviationCdZIPContractorAddress/USAddress/ZIPCdServicesServicesDescCompensationCompensationAmt
TG GALLAGHER MECHANICAL CONTRACTORS
309 WAVERLY OAKS ROAD SUITE 200WALTHAMMA02452HVAC$343,290
THE CATERED AFFAIR
70 LEDGEWOOD PLACEROCKLANDMA02370EVENT CATERING$207,791
MINELLI INC
175 PORTLAND STREET 5TH FLOORBOSTONMA02114BRANDING & MARKETING CONSULTING$120,183
ONE DIVERSIFIED LLC
2975 NORTHWOODS PKWYPEACHTREE CORNERSGA30071AV TECHNOLOGY IMPLEMENTATION$114,044
FieldValueIRS element (for citing)
Cntrct Rcvd Greater Than100 K4CntrctRcvdGreaterThan100KCnt
Related Organizations$54,759RelatedOrganizationsAmt
All Other Contributions$4,079,877AllOtherContributionsAmt
Noncash Contributions$176,145NoncashContributionsAmt
Total Contributions$4,134,636TotalContributionsAmt

Program Service Revenue ProgramServiceRevenueGrp (5 entries)

DescDescBusinessBusinessCdTotal Revenue ColumnTotalRevenueColumnAmtRelated Or Exempt Func IncomeRelatedOrExemptFuncIncomeAmt
FEES FOR LIBRARY USE713990$1,875,781$1,875,781
GENERAL ADMISSION713990$188,196$188,196
LECTURES, CONCERTS & EXHIBITIONS713990$61,284$61,284
OTHER PROGRAM REVENUE713990$49,918$49,918
PHOTOGRAPHIC SERVICES713990$3,938$3,938
FieldValueIRS element (for citing)
Total Program Service Revenue$2,179,117TotalProgramServiceRevenueAmt

Investment Income InvestmentIncomeGrp

FieldValueIRS element (for citing)
Total Revenue Column$1,989,566TotalRevenueColumnAmt
Exclusion$1,989,566ExclusionAmt

Gross Rents GrossRentsGrp

FieldValueIRS element (for citing)
Real$536,981RealAmt

Less Rental Expenses LessRentalExpensesGrp

FieldValueIRS element (for citing)
Real$59,930RealAmt

Rental Income Or Loss RentalIncomeOrLossGrp

FieldValueIRS element (for citing)
Real$477,051RealAmt

Net Rental Income Or Loss NetRentalIncomeOrLossGrp

FieldValueIRS element (for citing)
Total Revenue Column$477,051TotalRevenueColumnAmt
Unrelated Business Revenue-$14,849UnrelatedBusinessRevenueAmt
Exclusion$491,900ExclusionAmt

Gross Amount Sales Assets GrossAmountSalesAssetsGrp

FieldValueIRS element (for citing)
Securities$40,990,164SecuritiesAmt

Less Cost Oth Basis Sales Expnss LessCostOthBasisSalesExpnssGrp

FieldValueIRS element (for citing)
Securities$40,045,602SecuritiesAmt

Gain Or Loss GainOrLossGrp

FieldValueIRS element (for citing)
Securities$944,562SecuritiesAmt

Net Gain Or Loss Investments NetGainOrLossInvestmentsGrp

FieldValueIRS element (for citing)
Total Revenue Column$944,562TotalRevenueColumnAmt
Exclusion$944,562ExclusionAmt
FieldValueIRS element (for citing)
Gross Sales Of Inventory$43,740GrossSalesOfInventoryAmt
Cost Of Goods Sold$21,359CostOfGoodsSoldAmt

Net Income Or Loss NetIncomeOrLossGrp

FieldValueIRS element (for citing)
Total Revenue Column$22,381TotalRevenueColumnAmt
Exclusion$22,381ExclusionAmt

Total Revenue TotalRevenueGrp

FieldValueIRS element (for citing)
Total Revenue Column$9,747,313TotalRevenueColumnAmt
Related Or Exempt Func Income$2,179,117RelatedOrExemptFuncIncomeAmt
Unrelated Business Revenue-$14,849UnrelatedBusinessRevenueAmt
Exclusion$3,448,409ExclusionAmt

Grants To Domestic Orgs GrantsToDomesticOrgsGrp

FieldValueIRS element (for citing)
Total$5,000TotalAmt
Program Services$5,000ProgramServicesAmt

Grants To Domestic Individuals GrantsToDomesticIndividualsGrp

FieldValueIRS element (for citing)
Total$7,000TotalAmt
Program Services$7,000ProgramServicesAmt

Comp Current Ofcr Directors CompCurrentOfcrDirectorsGrp

FieldValueIRS element (for citing)
Total$691,335TotalAmt
Program Services$175,519ProgramServicesAmt
Management And General$362,237ManagementAndGeneralAmt
Fundraising$153,579FundraisingAmt

Other Salaries And Wages OtherSalariesAndWagesGrp

FieldValueIRS element (for citing)
Total$3,863,545TotalAmt
Program Services$3,052,284ProgramServicesAmt
Management And General$304,154ManagementAndGeneralAmt
Fundraising$507,107FundraisingAmt

Pension Plan Contributions PensionPlanContributionsGrp

FieldValueIRS element (for citing)
Total$200,077TotalAmt
Program Services$164,367ProgramServicesAmt
Management And General$11,150ManagementAndGeneralAmt
Fundraising$24,560FundraisingAmt

Other Employee Benefits OtherEmployeeBenefitsGrp

FieldValueIRS element (for citing)
Total$924,942TotalAmt
Program Services$697,973ProgramServicesAmt
Management And General$91,854ManagementAndGeneralAmt
Fundraising$135,115FundraisingAmt

Payroll Taxes PayrollTaxesGrp

FieldValueIRS element (for citing)
Total$318,838TotalAmt
Program Services$228,381ProgramServicesAmt
Management And General$44,651ManagementAndGeneralAmt
Fundraising$45,806FundraisingAmt

Fees For Services Legal FeesForServicesLegalGrp

FieldValueIRS element (for citing)
Total$17,875TotalAmt
Management And General$17,875ManagementAndGeneralAmt

Fees For Services Accounting FeesForServicesAccountingGrp

FieldValueIRS element (for citing)
Total$56,718TotalAmt
Management And General$56,718ManagementAndGeneralAmt

Fees For Services Prof Fundraising FeesForServicesProfFundraising

FieldValueIRS element (for citing)
Total$55,129TotalAmt
Fundraising$55,129FundraisingAmt

Fees For Srvc Invst Mgmnt Fees FeesForSrvcInvstMgmntFeesGrp

FieldValueIRS element (for citing)
Total$134,906TotalAmt
Management And General$134,906ManagementAndGeneralAmt

Fees For Services Other FeesForServicesOtherGrp

FieldValueIRS element (for citing)
Total$182,426TotalAmt
Management And General$94,166ManagementAndGeneralAmt
Fundraising$88,260FundraisingAmt

Advertising AdvertisingGrp

FieldValueIRS element (for citing)
Total$26,387TotalAmt
Program Services$26,387ProgramServicesAmt

Office Expenses OfficeExpensesGrp

FieldValueIRS element (for citing)
Total$184,120TotalAmt
Program Services$120,322ProgramServicesAmt
Management And General$50,153ManagementAndGeneralAmt
Fundraising$13,645FundraisingAmt

Information Technology InformationTechnologyGrp

FieldValueIRS element (for citing)
Total$485,329TotalAmt
Program Services$334,456ProgramServicesAmt
Management And General$23,818ManagementAndGeneralAmt
Fundraising$127,055FundraisingAmt

Occupancy OccupancyGrp

FieldValueIRS element (for citing)
Total$2,827,771TotalAmt
Program Services$2,744,099ProgramServicesAmt
Management And General$61,507ManagementAndGeneralAmt
Fundraising$22,165FundraisingAmt

Travel TravelGrp

FieldValueIRS element (for citing)
Total$24,580TotalAmt
Program Services$11,695ProgramServicesAmt
Management And General$11,700ManagementAndGeneralAmt
Fundraising$1,185FundraisingAmt

Depreciation Depletion DepreciationDepletionGrp

FieldValueIRS element (for citing)
Total$1,708,736TotalAmt
Program Services$1,672,853ProgramServicesAmt
Management And General$22,213ManagementAndGeneralAmt
Fundraising$13,670FundraisingAmt

Other Expenses OtherExpensesGrp (4 entries)

DescDescTotalTotalAmtProgram ServicesProgramServicesAmtFundraisingFundraisingAmt
COLLECTIONS AQUISITIONS$714,437$714,437
EVENT PROGRAMMING$249,473$199,460$50,013
ART EXHIBITIONS$218,550$218,550
CATALOGING AND COLLECTI$155,953$155,953

All Other Expenses AllOtherExpensesGrp

FieldValueIRS element (for citing)
Total$109,772TotalAmt
Program Services$107,463ProgramServicesAmt
Management And General$1,429ManagementAndGeneralAmt
Fundraising$880FundraisingAmt

Total Functional Expenses TotalFunctionalExpensesGrp

FieldValueIRS element (for citing)
Total$13,162,899TotalAmt
Program Services$10,636,199ProgramServicesAmt
Management And General$1,288,531ManagementAndGeneralAmt
Fundraising$1,238,169FundraisingAmt

Cash Non Interest Bearing CashNonInterestBearingGrp

FieldValueIRS element (for citing)
BOY$590,456BOYAmt
EOY$1,007,958EOYAmt

Savings And Temp Cash Invst SavingsAndTempCashInvstGrp

FieldValueIRS element (for citing)
BOY$4,534,915BOYAmt
EOY$7,401,469EOYAmt

Pledges And Grants Receivable PledgesAndGrantsReceivableGrp

FieldValueIRS element (for citing)
BOY$432,911BOYAmt
EOY$1,096,253EOYAmt

Inventories For Sale Or Use InventoriesForSaleOrUseGrp

FieldValueIRS element (for citing)
BOY$2,000BOYAmt
EOY$14,623EOYAmt

Prepaid Expenses Defrd Charges PrepaidExpensesDefrdChargesGrp

FieldValueIRS element (for citing)
BOY$141,735BOYAmt
EOY$116,168EOYAmt
FieldValueIRS element (for citing)
Land Bldg Equip Cost Or Other Bss$58,538,057LandBldgEquipCostOrOtherBssAmt
Land Bldg Equip Accum Deprec$23,944,651LandBldgEquipAccumDeprecAmt

Land Bldg Equip Basis Net LandBldgEquipBasisNetGrp

FieldValueIRS element (for citing)
BOY$36,298,028BOYAmt
EOY$34,593,406EOYAmt

Investments Pub Traded Sec InvestmentsPubTradedSecGrp

FieldValueIRS element (for citing)
BOY$58,275,807BOYAmt
EOY$53,979,187EOYAmt

Investments Other Securities InvestmentsOtherSecuritiesGrp

FieldValueIRS element (for citing)
BOY$21,600,428BOYAmt
EOY$25,575,090EOYAmt

Other Assets Total OtherAssetsTotalGrp

FieldValueIRS element (for citing)
BOY$15,305,063BOYAmt
EOY$14,737,649EOYAmt

Total Assets TotalAssetsGrp

FieldValueIRS element (for citing)
BOY$137,181,343BOYAmt
EOY$138,521,803EOYAmt

Accounts Payable Accr Expnss AccountsPayableAccrExpnssGrp

FieldValueIRS element (for citing)
BOY$731,787BOYAmt
EOY$771,323EOYAmt

Deferred Revenue DeferredRevenueGrp

FieldValueIRS element (for citing)
BOY$937,225BOYAmt
EOY$1,105,221EOYAmt

Other Liabilities OtherLiabilitiesGrp

FieldValueIRS element (for citing)
BOY$16,834,881BOYAmt
EOY$16,167,664EOYAmt

Total Liabilities TotalLiabilitiesGrp

FieldValueIRS element (for citing)
BOY$18,503,893BOYAmt
EOY$18,044,208EOYAmt
FieldValueIRS element (for citing)
Organization Follows FASB117Yes (X)OrganizationFollowsFASB117Ind

No Donor Restriction Net Assets NoDonorRestrictionNetAssetsGrp

FieldValueIRS element (for citing)
BOY$70,222,887BOYAmt
EOY$69,101,691EOYAmt

Donor Restriction Net Assets DonorRestrictionNetAssetsGrp

FieldValueIRS element (for citing)
BOY$48,454,563BOYAmt
EOY$51,375,904EOYAmt

Total Net Assets Fund Balance TotalNetAssetsFundBalanceGrp

FieldValueIRS element (for citing)
BOY$118,677,450BOYAmt
EOY$120,477,595EOYAmt

Tot Liab Net Assets Fund Balance TotLiabNetAssetsFundBalanceGrp

FieldValueIRS element (for citing)
BOY$137,181,343BOYAmt
EOY$138,521,803EOYAmt
FieldValueIRS element (for citing)
Reconcilation Revenue Expnss-$3,415,586ReconcilationRevenueExpnssAmt
Net Unrlzd Gains Losses Invst$5,215,731NetUnrlzdGainsLossesInvstAmt
Other Changes In Net Assets$0OtherChangesInNetAssetsAmt
Info In Schedule O Part XIIYes (X)InfoInScheduleOPartXIIInd
Method Of Accounting AccrualYes (X)MethodOfAccountingAccrualInd
Accountant Compile Or Review0AccountantCompileOrReviewInd
FS AuditedYes (1)FSAuditedInd

FS Audited Basis FSAuditedBasisGrp

FieldValueIRS element (for citing)
Consolidated Basis Fincl StmtYes (X)ConsolidatedBasisFinclStmtInd
FieldValueIRS element (for citing)
Audit CommitteeYes (1)AuditCommitteeInd
Federal Grant Audit Required0FederalGrantAuditRequiredInd

Schedule A IRS990ScheduleA

FieldValueIRS element (for citing)
Public Organization170Yes (X)PublicOrganization170Ind

Gifts Grants Contri Rcvd170 GiftsGrantsContriRcvd170Grp

FieldValueIRS element (for citing)
Current Tax Year Minus4 Years$4,052,846CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years$2,503,329CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years$5,538,472CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year$2,997,595CurrentTaxYearMinus1YearAmt
Current Tax Year$4,134,636CurrentTaxYearAmt
Total$19,226,878TotalAmt

Total Calendar Year170 TotalCalendarYear170Grp

FieldValueIRS element (for citing)
Current Tax Year Minus4 Years$4,052,846CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years$2,503,329CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years$5,538,472CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year$2,997,595CurrentTaxYearMinus1YearAmt
Current Tax Year$4,134,636CurrentTaxYearAmt
Total$19,226,878TotalAmt
FieldValueIRS element (for citing)
Substantial Contributors Tot$3,710,723SubstantialContributorsTotAmt
Public Support Total170$15,516,155PublicSupportTotal170Amt

Gross Investment Income170 GrossInvestmentIncome170Grp

FieldValueIRS element (for citing)
Current Tax Year Minus4 Years$826,827CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years$751,086CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years$2,175,690CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year$2,397,446CurrentTaxYearMinus1YearAmt
Current Tax Year$2,481,466CurrentTaxYearAmt
Total$8,632,515TotalAmt

Other Income170 OtherIncome170Grp

FieldValueIRS element (for citing)
Current Tax Year Minus4 Years$2,610CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years$3,175CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years$4,338CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year$9,607CurrentTaxYearMinus1YearAmt
Current Tax Year$43,740CurrentTaxYearAmt
Total$63,470TotalAmt
FieldValueIRS element (for citing)
Total Support$27,922,863TotalSupportAmt
Gross Receipts Rltd Activities$8,008,820GrossReceiptsRltdActivitiesAmt
Public Support CY1700.55570PublicSupportCY170Pct
Public Support PY1700.54890PublicSupportPY170Pct
Thirty Thr Pct Suprt Tests CY170Yes (X)ThirtyThrPctSuprtTestsCY170Ind

Form990 Schedule A Part VI Form990ScheduleAPartVIGrp

FieldValueIRS element (for citing)
Form And Line ReferenceSCHEDULE A, PART II, LINE 10, EXPLANATION OF OTHER INCOME:FormAndLineReferenceDesc
ExplanationGIFT SHOPS - 2020 AMOUNT: $ 2,610. 2021 AMOUNT: $ 3,175. 2022 AMOUNT: $ 4,338. 2023 AMOUNT: $ 9,607. 2024 AMOUNT: $ 43,740.ExplanationTxt

Schedule B IRS990ScheduleB

Contributor Information ContributorInformationGrp

FieldValueIRS element (for citing)
ContributorRESTRICTEDContributorNum

Contributor Business Name ContributorBusinessName

FieldValueIRS element (for citing)
Business Name Line1RESTRICTEDBusinessNameLine1

Contributor US Address ContributorUSAddress

FieldValueIRS element (for citing)
Address Line1RESTRICTEDAddressLine1
Address Line2RESTRICTEDAddressLine2
CityRESTRICTEDCity
StateRESTRICTEDState
ZIP CodeRESTRICTEDZIPCode
FieldValueIRS element (for citing)
Total ContributionsRESTRICTEDTotalContributionsAmt

Schedule D IRS990ScheduleD

FieldValueIRS element (for citing)
Collection Used Pub ExhibitionYes (X)CollectionUsedPubExhibitionInd
Coll Used Scholarly RsrchYes (X)CollUsedScholarlyRsrchInd
Collection Used PreservationYes (X)CollectionUsedPreservationInd
Coll Used Loan Or Exch ProgYes (X)CollUsedLoanOrExchProgInd
Solicited Assets Sale0SolicitedAssetsSaleInd

CY Endwmt Fund CYEndwmtFundGrp

FieldValueIRS element (for citing)
Beginning Year Balance$84,112,651BeginningYearBalanceAmt
Contributions$815,033ContributionsAmt
Investment Earnings Or Losses$8,160,056InvestmentEarningsOrLossesAmt
Other Expenditures$5,966,280OtherExpendituresAmt
End Year Balance$87,121,460EndYearBalanceAmt

CY Minus1 Yr Endwmt Fund CYMinus1YrEndwmtFundGrp

FieldValueIRS element (for citing)
Beginning Year Balance$72,421,394BeginningYearBalanceAmt
Contributions$713,406ContributionsAmt
Investment Earnings Or Losses$17,044,581InvestmentEarningsOrLossesAmt
Other Expenditures$6,066,730OtherExpendituresAmt
End Year Balance$84,112,651EndYearBalanceAmt

CY Minus2 Yr Endwmt Fund CYMinus2YrEndwmtFundGrp

FieldValueIRS element (for citing)
Beginning Year Balance$66,890,422BeginningYearBalanceAmt
Contributions$2,853,677ContributionsAmt
Investment Earnings Or Losses$10,024,523InvestmentEarningsOrLossesAmt
Other Expenditures$7,347,228OtherExpendituresAmt
End Year Balance$72,421,394EndYearBalanceAmt

CY Minus3 Yr Endwmt Fund CYMinus3YrEndwmtFundGrp

FieldValueIRS element (for citing)
Beginning Year Balance$92,938,942BeginningYearBalanceAmt
Contributions$60,498ContributionsAmt
Investment Earnings Or Losses-$17,807,086InvestmentEarningsOrLossesAmt
Other Expenditures$8,301,932OtherExpendituresAmt
End Year Balance$66,890,422EndYearBalanceAmt

CY Minus4 Yr Endwmt Fund CYMinus4YrEndwmtFundGrp

FieldValueIRS element (for citing)
Beginning Year Balance$92,040,764BeginningYearBalanceAmt
Contributions$30,118ContributionsAmt
Investment Earnings Or Losses$17,053,876InvestmentEarningsOrLossesAmt
Other Expenditures$16,185,816OtherExpendituresAmt
End Year Balance$92,938,942EndYearBalanceAmt
FieldValueIRS element (for citing)
Board Designated Balance EOY0.43310BoardDesignatedBalanceEOYPct
Prmnnt Endowment Balance EOY0.36130PrmnntEndowmentBalanceEOYPct
Term Endowment Balance EOY0.20560TermEndowmentBalanceEOYPct
Endowments Held Unrelated OrgYes (1)EndowmentsHeldUnrelatedOrgInd
Endowments Held Related OrgYes (1)EndowmentsHeldRelatedOrgInd
Related Org List Sch RYes (1)RelatedOrgListSchRInd

Land LandGrp

FieldValueIRS element (for citing)
Other Cost Or Other Basis$199,303OtherCostOrOtherBasisAmt
Book Value$199,303BookValueAmt

Buildings BuildingsGrp

FieldValueIRS element (for citing)
Other Cost Or Other Basis$55,154,641OtherCostOrOtherBasisAmt
Depreciation$22,238,401DepreciationAmt
Book Value$32,916,240BookValueAmt

Equipment EquipmentGrp

FieldValueIRS element (for citing)
Other Cost Or Other Basis$3,184,113OtherCostOrOtherBasisAmt
Depreciation$1,706,250DepreciationAmt
Book Value$1,477,863BookValueAmt
FieldValueIRS element (for citing)
Total Book Value Land Buildings$34,593,406TotalBookValueLandBuildingsAmt

Other Securities OtherSecuritiesGrp

FieldValueIRS element (for citing)
DescPARTNERSHIPS-EQUITY FUNDSDesc
Book Value$25,575,090BookValueAmt
Method ValuationFMethodValuationCd
FieldValueIRS element (for citing)
Total Book Value Securities$25,575,090TotalBookValueSecuritiesAmt

Other Assets Org OtherAssetsOrgGrp (3 entries)

DescDescBook ValueBookValueAmt
RIGHT-OF-USE ASSETS - OPERATING$13,780,374
BENEFICIAL INTEREST IN PERPETUAL TRUST$837,545
OTHER ASSETS$119,730
FieldValueIRS element (for citing)
Total Book Value Other Assets$14,737,649TotalBookValueOtherAssetsAmt

Other Liabilities Org OtherLiabilitiesOrgGrp

FieldValueIRS element (for citing)
DescOPERATING LEASE LIABILITYDesc
Amt$16,167,664Amt
FieldValueIRS element (for citing)
Total Liability$16,167,664TotalLiabilityAmt
Footnote TextYes (X)FootnoteTextInd

Supplemental Information Detail SupplementalInformationDetail (4 entries)

Form And Line ReferenceFormAndLineReferenceDescExplanationExplanationTxt
PART III, LINE 1A:THE COLLECTIONS WHICH WERE ACQUIRED THROUGH PURCHASES AND CONTRIBUTIONS SINCE THE ATHENAEUM'S INCEPTION ARE NOT RECOGNIZED AS ASSETS ON THE CONSOLIDATED STATEMENT OF FINANCIAL POSITION. PURCHASES OF COLLECTION ITEMS ARE RECORDED AS DECREASES IN NET ASSETS WITHOUT DONOR RESTRICTIONS IN THE YEAR IN WHICH THE ITEMS ARE ACQUIRED AND AS RELEASES OF RESTRICTED NET ASSETS IF THE ASSETS USED TO PURCHASE THE ITEMS WERE USED TO FUND THE PURCHASE. CONTRIBUTED COLLECTION ITEMS ARE NOT REFLECTED AS REVENUE IN THE CONSOLIDATED FINANCIAL STATEMENTS. PROCEEDS FROM DE-ACCESSIONS OR INSURANCE RECOVERIES ARE REFLECTED AS INCREASES IN NET ASSETS. THE ATHENAEUM'S COLLECTIONS ARE MADE UP OF BOOKS, ARTIFACTS OF HISTORICAL SIGNIFICANCE AND ART OBJECTS THAT ARE HELD FOR EDUCATIONAL, RESEARCH, SCIENTIFIC AND CURATORIAL PURPOSES. EACH OF THE ITEMS IS CATALOGED, PRESERVED AND CARED FOR, AND ACTIVITIES VERIFYING THEIR EXISTENCE AND ACCESSING THEIR CONDITION ARE PERFORMED CONTINUOUSLY.
PART III, LINE 4:THE ATHENAEUM'S COLLECTIONS COMPRISE OVER HALF A MILLION VOLUMES, EXTENSIVE HOLDINGS OF PAINTINGS, SCULPTURES, PRINTS, AND PHOTOGRAPHS. PARTICULAR STRENGTHS ARE IN BOSTON HISTORY, NEW ENGLAND STATE AND LOCAL HISTORY, BIOGRAPHY, ENGLISH AND AMERICAN LITERATURE, AND THE FINE AND DECORATIVE ARTS. THE ATHENAEUM SUPPORTS A DYNAMIC EXHIBITION PROGRAM AND SPONSORS A LIVELY VARIETY OF EVENTS SUCH AS LECTURES AND CONCERTS. IT ALSO SERVES AS A STIMULATING CENTER FOR DISCUSSIONS AMONG SCHOLARS, BIBLIOPHILES, AND A VARIETY OF COMMUNITY-INTEREST GROUPS.
PART V, LINE 4:THE ATHENAEUM'S ENDOWMENT CONSISTS OF 500 ENDOWMENT FUNDS ESTABLISHED FOR A VARIETY OF PURPOSES. ITS ENDOWMENT INCLUDES BOTH DONOR-RESTRICTED ENDOWMENT FUNDS AND FUNDS DESIGNATED BY THE BOARD TO FUNCTION AS ENDOWMENTS. NET ASSETS ASSOCIATED WITH ENDOWMENT FUNDS ARE CLASSIFIED AND REPORTED BASED ON THE EXISTENCE OR ABSENCE OF DONOR-IMPOSED OR LEGAL RESTRICTIONS. THE BOARD HAS INTERPRETED THE UNIFORM PRUDENT MANAGEMENT OF INSTITUTIONAL FUNDS ACT ("UPMIFA") AS ENACTED IN MASSACHUSETTS AS REQUIRING THE TRACKING OF THE ORIGINAL GIFT AMOUNTS OF DONOR-RESTRICTED ENDOWMENT FUNDS ABSENT EXPLICIT DONOR STIPULATIONS TO THE CONTRARY. THE ATHENAEUM TRACKS IN PERPETUITY: (A) THE ORIGINAL VALUE OF GIFTS DONATED TO THE PERMANENT ENDOWMENT, (B) THE ORIGINAL VALUE OF SUBSEQUENT GIFTS TO THE PERMANENT ENDOWMENT AND (C) ANY ACCUMULATIONS TO THE PERMANENT ENDOWMENT MADE IN ACCORDANCE WITH THE DIRECTION OF THE APPLICABLE DONOR GIFT AND INSTRUMENT AT THE TIME THE ACCUMULATION IS ADDED TO THE FUND, AS APPLICABLE.
PART X, LINE 2:THE ATHENAEUM ACCOUNTS FOR UNCERTAINTY IN INCOME TAXES IN ACCORDANCE WITH ASC TOPIC, INCOME TAXES. THIS STANDARD CLARIFIES THE ACCOUNTING FOR UNCERTAINTY IN TAX POSITIONS AND PRESCRIBES A RECOGNITION THRESHOLD AND MEASUREMENT ATTRIBUTE FOR THE CONSOLIDATED FINANCIAL STATEMENTS REGARDING A TAX POSITION TAKEN OR EXPECTED TO BE TAKEN IN A TAX RETURN. THE ATHENAEUM HAS DETERMINED THAT THERE ARE NO UNCERTAIN TAX POSITIONS WHICH QUALIFY FOR EITHER RECOGNITION OR DISCLOSURE IN THE CONSOLIDATED FINANCIAL STATEMENTS AT SEPTEMBER 30, 2025.

Schedule G IRS990ScheduleG

FieldValueIRS element (for citing)
Mail SolicitationsYes (X)MailSolicitationsInd
Email SolicitationsYes (X)EmailSolicitationsInd
Solicitation Of Non Govt GrantsYes (X)SolicitationOfNonGovtGrantsInd
Agrmt Prof Fundraising ActyYes (1)AgrmtProfFundraisingActyInd

Fundraiser Activity Info FundraiserActivityInfoGrp (2 entries)

Address Line1USAddress/AddressLine1TxtCityUSAddress/CityNmState AbbreviationUSAddress/StateAbbreviationCdZIPUSAddress/ZIPCdActivityActivityTxtFundraiser Control Of FundsFundraiserControlOfFundsIndGross ReceiptsGrossReceiptsAmtRetained By ContractorRetainedByContractorAmtNet To OrganizationNetToOrganizationAmt
JOHN BROWN LIMITED INC
155 W 68TH STREET 34FNEW YORKNY10023GENERAL STRATEGY, MESSAGING AND COACHING0$0$40,129-$40,129
GIFT PLANNING & FUNDRAISING SERVICES
5 FIELDSTONE WAYWELLESLEYMA02482PLANNED GIVING (BEQUESTS)0$0$15,000-$15,000
FieldValueIRS element (for citing)
Total Retained By Contractors$55,129TotalRetainedByContractorsAmt
Total Net To Organization-$55,129TotalNetToOrganizationAmt
Licensed StatesMALicensedStatesCd

Supplemental Information Detail SupplementalInformationDetail

FieldValueIRS element (for citing)
Form And Line ReferenceSCHEDULE G, PART I, LINE 2B, COLUMN (V)FormAndLineReferenceDesc
ExplanationTHE SERVICES WERE GENERAL IN NATURE AND WERE NOT DIRECTED TO OR TRACEABLE TO A PARTICULAR GIFT.ExplanationTxt

Schedule I IRS990ScheduleI

FieldValueIRS element (for citing)
Grant Records MaintainedYes (1)GrantRecordsMaintainedInd

Grants Other Asst To Indiv In US GrantsOtherAsstToIndivInUSGrp

FieldValueIRS element (for citing)
Grant TypeCASH GRANTSGrantTypeTxt
Recipient4RecipientCnt
Cash Grant$7,000CashGrantAmt
Non Cash AssistanceRESEARCH FELLOWSHIPSNonCashAssistanceDesc

Supplemental Information Detail SupplementalInformationDetail

FieldValueIRS element (for citing)
Form And Line ReferencePART I, LINE 2:FormAndLineReferenceDesc
ExplanationFELLOWSHIPS ARE ADMINISTERED BY OUR LIBRARY STAFF WHO COORDINATE THE LECTURE ACTIVITY AND FACILITATE AND MONITOR THE STUDY AND LECTURE ACTIVITYExplanationTxt

Schedule J IRS990ScheduleJ

FieldValueIRS element (for citing)
Independent ConsultantYes (X)IndependentConsultantInd
Form990 Of Other OrganizationsYes (X)Form990OfOtherOrganizationsInd
Compensation SurveyYes (X)CompensationSurveyInd
Board Or Committee ApprovalYes (X)BoardOrCommitteeApprovalInd
Severance Payment0SeverancePaymentInd
Supplemental Nonqual Rtr Plan0SupplementalNonqualRtrPlanInd
Equity Based Comp Arrngm0EquityBasedCompArrngmInd
Comp Based On Revenue Of Flng Org0CompBasedOnRevenueOfFlngOrgInd
Comp Bsd On Rev Related Orgs0CompBsdOnRevRelatedOrgsInd
Comp Bsd Net Earns Flng Org0CompBsdNetEarnsFlngOrgInd
Comp Bsd Net Earns Rltd Orgs0CompBsdNetEarnsRltdOrgsInd
Any Non Fixed Payments0AnyNonFixedPaymentsInd
Initial Contract Exception0InitialContractExceptionInd

Rltd Org Officer Trst Key Empl RltdOrgOfficerTrstKeyEmplGrp (5 entries)

TitleTitleTxtBase Compensation Filing OrgBaseCompensationFilingOrgAmtCompensation Based On Rltd OrgsCompensationBasedOnRltdOrgsAmtBonus Filing OrganizationBonusFilingOrganizationAmountBonus Related OrganizationsBonusRelatedOrganizationsAmtOther Compensation Filing OrgOtherCompensationFilingOrgAmtOther Compensation Rltd OrgsOtherCompensationRltdOrgsAmtDeferred Compensation Flng OrgDeferredCompensationFlngOrgAmtDeferred Comp Rltd OrgsDeferredCompRltdOrgsAmtNontaxable Benefits Filing OrgNontaxableBenefitsFilingOrgAmtNontaxable Benefits Rltd OrgsNontaxableBenefitsRltdOrgsAmtTotal Compensation Filing OrgTotalCompensationFilingOrgAmtTotal Compensation Rltd OrgsTotalCompensationRltdOrgsAmtComp Report Prior990 Filing OrgCompReportPrior990FilingOrgAmtComp Report Prior990 Rltd OrgsCompReportPrior990RltdOrgsAmt
LEAH ROSOVSKY
DIRECTOR$362,733$0$0$0$0$0$29,160$0$1,515$0$393,408$0$0$0
BRIDGET KEANE
DIRECTOR OF DEVELOPMENT$250,767$0$0$0$0$0$21,199$0$24,436$0$296,402$0$0$0
CHRISTOPHER J BOUDROT
DIRECTOR OF FINANCE$180,811$0$0$0$0$0$15,045$0$24,421$0$220,277$0$0$0
JOHN BUCHTEL
CURATOR,RARE BOOKS/SPEC. COLLECTIONS$166,392$0$0$0$0$0$13,895$0$18,114$0$198,401$0$0$0
GREGORY MORRIS
DIRECTOR OF FACILITIES AND SECURITY$149,224$0$0$0$0$0$10,657$0$17,462$0$177,343$0$0$0

Schedule M IRS990ScheduleM

Art Historical Treasures ArtHistoricalTreasuresGrp

FieldValueIRS element (for citing)
Non Cash CheckboxYes (X)NonCashCheckboxInd
Contribution136ContributionCnt
Noncash Contributions Rpt F990$0NoncashContributionsRptF990Amt
Method Of Determining RevenuesUNRECORDED FOR GAAPMethodOfDeterminingRevenuesTxt

Securities Publicly Traded SecuritiesPubliclyTradedGrp

FieldValueIRS element (for citing)
Non Cash CheckboxYes (X)NonCashCheckboxInd
Contribution8ContributionCnt
Noncash Contributions Rpt F990$176,145NoncashContributionsRptF990Amt
Method Of Determining RevenuesFMVMethodOfDeterminingRevenuesTxt
FieldValueIRS element (for citing)
Any Property That Must Be Held0AnyPropertyThatMustBeHeldInd
Review Process Unusual NC GiftsYes (1)ReviewProcessUnusualNCGiftsInd
Third Parties Used0ThirdPartiesUsedInd

Supplemental Information Detail SupplementalInformationDetail

FieldValueIRS element (for citing)
Form And Line ReferencePART I, COLUMN (B):FormAndLineReferenceDesc
ExplanationTHE NUMBER LISTED IN PART I, LINE 2, COLUMN (B) REPRESENTS THE NUMBER OF CONTRIBUTIONS.ExplanationTxt

Schedule O IRS990ScheduleO

Supplemental Information Detail SupplementalInformationDetail (9 entries)

Form And Line ReferenceFormAndLineReferenceDescExplanationExplanationTxt
FORM 990, PART I & III, LINE 1:THE MISSION OF THE BOSTON ATHENAEUM IS TO ENGAGE ALL WHO SEEK KNOWLEDGE BY MAKING ACCESSIBLE OUR LIBRARY'S COLLECTIONS AND SPACES, THEREBY INSPIRING REFLECTION, DISCOURSE, CREATIVE EXPRESSION, AND JOY.
FORM 990, PART VI, SECTION A, LINE 4DURING THE REPORTING PERIOD, THE PROPRIETORS OF THE BOSTON ATHENAEUM AMENDED ITS BYLAWS TO INCREASE THE MAXIMUM ALLOWABLE NUMBER OF TRUSTEES FROM TWENTY-ONE (21) TO TWENTY-FIVE (25) MEMBERS.
FORM 990, PART VI, SECTION A, LINE 6PLEASE REFER TO THE RESPONSE TO FORM 990, PART VI, SECTION A, LINE 7A BELOW.
FORM 990, PART VI, SECTION A, LINE 7ATHE BOSTON ATHENAEUM WAS INCORPORATED AS A SHAREHOLDER ORGANIZATION BY THE MASSACHUSETTS GENERAL COURT (THE STATE LEGISLATURE) IN 1807. ATHENAEUM SHAREHOLDERS ARE TERMED "PROPRIETORS." THE GENERAL COURT HAS AUTHORIZED 1,049 ATHENAEUM PROPRIETORS. THESE PROPRIETORS' SOLE FUNCTION IS TO ELECT THE OFFICERS AND GOVERNING BOARD OF THE ATHENAEUM. PROPRIETOR SHARES MAY BE BOUGHT OR SOLD, GIVEN OR BEQUEATHED. THE PROPRIETORS THEMSELVES HAVE NO CLAIM ON THE NET ASSETS OF THE ATHENAEUM, NOR DO THEY RECEIVE ANY PERSONAL FINANCIAL BENEFIT RESULTING FROM THEIR HOLDING OF THE PROPRIETORSHIP.
FORM 990, PART VI, SECTION B, LINE 11BPRIOR TO FILING FORM 990, A SPECIAL MEETING OF THE AUDIT & RISK COMMITTEE, WHO IS DELEGATED AUTHORITY TO APPROVE THE RETURN, WAS HELD. THE RETURN WAS PRESENTED BY THE DIRECTOR OF FINANCE, WHO WAS AVAILABLE TO ANSWER QUESTIONS AND TO CERTIFY THE ACCURACY OF INFORMATION PROVIDED ON THE RETURN. THE COMMITTEE VOTED TO APPROVE THE RETURN BASED ON EXAMINATION OF THE RETURN AND CERTIFICATIONS MADE BY THE DIRECTOR OF FINANCE. A COMPLETE COPY OF THE FORM 990 WAS PROVIDED TO THE ENTIRE BOARD VIA EMAIL, PRIOR TO FILING.
FORM 990, PART VI, SECTION B, LINE 12CTHE ORGANIZATION MAINTAINS A WRITTEN CONFLICTS-OF-INTEREST POLICY. THE POLICY REQUIRES OFFICERS, DIRECTORS, TRUSTEES AND KEY EMPLOYEES TO COMPLETE AN ANNUAL CONFLICTS-OF-INTEREST DISCLOSURE STATEMENT. THE STATEMENTS ARE DISCUSSED AND CONSIDERED PER THE POLICY AT A MEETING OF THE BOARD OF TRUSTEES.
FORM 990, PART VI, SECTION B, LINE 15EACH YEAR THE TRUSTEES EVALUATE THE COMPENSATION OF THE EXECUTIVE DIRECTOR OBJECTIVELY, TAKING INTO ACCOUNT COMPENSATION PAID BY SIMILAR ORGANIZATIONS FOR FUNCTIONALLY COMPARABLE POSITIONS.
FORM 990, PART VI, SECTION C, LINE 19THE ATHENAEUM WAS INCORPORATED IN 1807. UPON THE ENACTMENT OF THE FEDERAL INCOME TAX IN THE 20TH CENTURY, THE IRS DETERMINED THAT THE ATHENAEUM WAS EXEMPT FROM TAXATION. THIS IRS DETERMINATION OCCURRED PRIOR TO THE ESTABLISHMENT OF THE APPLICATION PROCESS THAT INCLUDES FORM 1023. CONSEQUENTLY NO FORM 1023 HAS BEEN REQUIRED BY THE IRS OR PREPARED BY THE ATHENAEUM. THE ATHENAEUM'S BYLAWS AND CONFLICT OF INTEREST POLICY ARE AVAILABLE FOR REVIEW UPON REQUEST. THE COMPLETE AUDITED FINANCIAL STATEMENTS ARE AVAILABLE ON THE ATHENAEUM'S WEBSITE: HTTP://WWW.BOSTONATHENAEUM.ORG. THE FORM 990 AND AUDITED FINANCIAL STATEMENTS ARE ALSO AVAILABLE VIA THE MASSACHUSETTS ATTORNEY GENERAL'S WEBSITE.
FORM 990, PART XII, LINE 2C:THIS PROCESS HAS NOT CHANGED FROM THE PRIOR YEAR.

Schedule R IRS990ScheduleR

Id Related Tax Exempt Org IdRelatedTaxExemptOrgGrp

Disregarded Entity Name DisregardedEntityName

FieldValueIRS element (for citing)
Business Name Line1THE BOSTON LIBRARY SOCIETYBusinessNameLine1Txt

US Address USAddress

FieldValueIRS element (for citing)
Address Line110 1/2 BEACON STREETAddressLine1Txt
CityBOSTONCityNm
State AbbreviationMAStateAbbreviationCd
ZIP02108ZIPCd
FieldValueIRS element (for citing)
EIN041105450EIN
Primary ActivitiesORGANIZATION THAT ALLOCATES FUNDS TO THE BOSTON ATHENAEUMPrimaryActivitiesTxt
Legal Domicile StateMALegalDomicileStateCd
Exempt Code Section501(C)(3)ExemptCodeSectionTxt
Public Charity StatusLINE 12A, IPublicCharityStatusTxt

Direct Controlling Entity Name DirectControllingEntityName

FieldValueIRS element (for citing)
Business Name Line1PROPRIETORS OF THE BOSTON ATHENAEUMBusinessNameLine1Txt
FieldValueIRS element (for citing)
Controlled OrganizationYes (1)ControlledOrganizationInd

Id Related Org Txbl Corp Tr IdRelatedOrgTxblCorpTrGrp

Related Organization Name RelatedOrganizationName

FieldValueIRS element (for citing)
Business Name Line1CHARITABLE REMAINDER TRUSTBusinessNameLine1Txt

US Address USAddress

FieldValueIRS element (for citing)
Address Line110 1/2 BEACON STREETAddressLine1Txt
CityBOSTONCityNm
State AbbreviationMAStateAbbreviationCd
ZIP02108ZIPCd
FieldValueIRS element (for citing)
EIN046607942EIN
Primary ActivitiesCHARITABLE REMAINDER TRUSTPrimaryActivitiesTxt
Legal Domicile StateMALegalDomicileStateCd
Direct Controlling NAN/ADirectControllingNACd
Entity TypeTEntityTypeTxt
Ownership1.00000OwnershipPct
Controlled Organization0ControlledOrganizationInd
FieldValueIRS element (for citing)
Receipt Of Int Annts Rnts Rylts0ReceiptOfIntAnntsRntsRyltsInd
Gift Grnt Or Cap Contri To Oth Org0GiftGrntOrCapContriToOthOrgInd
Gift Grnt Cap Contri From Oth OrgYes (1)GiftGrntCapContriFromOthOrgInd
Loans Or Guarantees To Other Org0LoansOrGuaranteesToOtherOrgInd
Loans Or Guarantees From Oth Org0LoansOrGuaranteesFromOthOrgInd
Div Related Organization0DivRelatedOrganizationInd
Asset Sale To Other Org0AssetSaleToOtherOrgInd
Asset Purchase From Other Org0AssetPurchaseFromOtherOrgInd
Asset Exchange0AssetExchangeInd
Rental Of Facilities To Oth Org0RentalOfFacilitiesToOthOrgInd
Rental Of Fclts From Oth Org0RentalOfFcltsFromOthOrgInd
Perform Of Services For Oth Org0PerformOfServicesForOthOrgInd
Perform Of Services By Other Org0PerformOfServicesByOtherOrgInd
Sharing Of Facilities0SharingOfFacilitiesInd
Paid Employees Sharing0PaidEmployeesSharingInd
Reimbursement Paid To Other Org0ReimbursementPaidToOtherOrgInd
Reimbursement Paid By Other Org0ReimbursementPaidByOtherOrgInd
Transfer To Other Org0TransferToOtherOrgInd
Transfer From Other Org0TransferFromOtherOrgInd

Transactions Related Org TransactionsRelatedOrgGrp

Other Organization Name OtherOrganizationName

FieldValueIRS element (for citing)
Business Name Line1THE BOSTON LIBRARY SOCIETYBusinessNameLine1Txt
FieldValueIRS element (for citing)
Transaction TypeCTransactionTypeTxt
Involved$54,759InvolvedAmt
Method Of Amount DeterminationBOOK VALUEMethodOfAmountDeterminationTxt

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