STRATEGY STUDIO / NONPROFIT PEOPLE SEARCH

MIDDLESEX SCHOOL: Form 990, tax year 2024

View the entire original 990 at ProPublica ↗

Organization
MIDDLESEX SCHOOL (EIN 04-2103821)
Tax period
2024-07-01 to 2025-06-30
Filed
2026-05-12
IRS object ID
202601329349304935
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)
Return2026-05-12T13:59:48-05:00ReturnTs
Tax Period End2025-06-30TaxPeriodEndDt

Preparer Firm PreparerFirmGrp

FieldValueIRS element (for citing)
Preparer Firm EIN420714325PreparerFirmEIN

Preparer Firm Name PreparerFirmName

FieldValueIRS element (for citing)
Business Name Line1RSM US LLPBusinessNameLine1Txt

Preparer US Address PreparerUSAddress

FieldValueIRS element (for citing)
Address Line180 CITY SQUAREAddressLine1Txt
CityBOSTONCityNm
State AbbreviationMAStateAbbreviationCd
ZIP02129ZIPCd
FieldValueIRS element (for citing)
Return Type990ReturnTypeCd
Tax Period Begin2024-07-01TaxPeriodBeginDt

Filer Filer

FieldValueIRS element (for citing)
EIN042103821EIN

Business Name BusinessName

FieldValueIRS element (for citing)
Business Name Line1MIDDLESEX SCHOOLBusinessNameLine1Txt
FieldValueIRS element (for citing)
Business Name ControlMIDDBusinessNameControlTxt
Phone9783692550PhoneNum

US Address USAddress

FieldValueIRS element (for citing)
Address Line11400 LOWELL ROADAddressLine1Txt
CityCONCORDCityNm
State AbbreviationMAStateAbbreviationCd
ZIP01742ZIPCd

Business Officer BusinessOfficerGrp

FieldValueIRS element (for citing)
PersonMICHAEL J HOYLEPersonNm
Person TitleCFOOPersonTitleTxt
Phone9783692550PhoneNum
Signature2026-05-11SignatureDt
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 PersonLYNNE JOHNSONPreparerPersonNm
PTINP00757336PTIN
Phone6179129000PhoneNum
Preparation2026-05-11PreparationDt
FieldValueIRS element (for citing)
Tax2024TaxYr
Build TS2025-03-06 01:10:19ZBuildTS

Form 990 IRS990

FieldValueIRS element (for citing)
Principal OfficerELIZABETH SPEERSPrincipalOfficerNm

US Address USAddress

FieldValueIRS element (for citing)
Address Line11400 LOWELL ROADAddressLine1Txt
CityCONCORDCityNm
State AbbreviationMAStateAbbreviationCd
ZIP01742ZIPCd
FieldValueIRS element (for citing)
Gross Receipts$93,067,086GrossReceiptsAmt
Group Return For Affiliates0GroupReturnForAffiliatesInd
Organization501c3Yes (X)Organization501c3Ind
Website AddressWWW.MXSCHOOL.EDUWebsiteAddressTxt
Type Of Organization CorpYes (X)TypeOfOrganizationCorpInd
Formation1901FormationYr
Legal Domicile StateMALegalDomicileStateCd
Activity Or MissionMIDDLESEX SCHOOL IS A COLLEGE-PREPARATORY SCHOOL FOR GRADES 9 THROUGH 12.ActivityOrMissionDesc
Voting Members Governing Body33VotingMembersGoverningBodyCnt
Voting Members Independent32VotingMembersIndependentCnt
Total Employee260TotalEmployeeCnt
Total Volunteers220TotalVolunteersCnt
Total Gross UBI$74,363TotalGrossUBIAmt
Net Unrelated Bus Txbl Incm$10,182NetUnrelatedBusTxblIncmAmt
PY Contributions Grants$5,462,852PYContributionsGrantsAmt
CY Contributions Grants$14,814,823CYContributionsGrantsAmt
PY Program Service Revenue$28,396,115PYProgramServiceRevenueAmt
CY Program Service Revenue$30,105,880CYProgramServiceRevenueAmt
PY Investment Income$13,574,021PYInvestmentIncomeAmt
CY Investment Income$12,243,171CYInvestmentIncomeAmt
PY Other Revenue$1,015,318PYOtherRevenueAmt
CY Other Revenue$1,857,483CYOtherRevenueAmt
PY Total Revenue$48,448,306PYTotalRevenueAmt
CY Total Revenue$59,021,357CYTotalRevenueAmt
PY Grants And Similar Paid$7,541,349PYGrantsAndSimilarPaidAmt
CY Grants And Similar Paid$8,297,320CYGrantsAndSimilarPaidAmt
PY Benefits Paid To Members$0PYBenefitsPaidToMembersAmt
CY Benefits Paid To Members$0CYBenefitsPaidToMembersAmt
PY Salaries Comp Emp Bnft Paid$20,227,449PYSalariesCompEmpBnftPaidAmt
CY Salaries Comp Emp Bnft Paid$22,343,851CYSalariesCompEmpBnftPaidAmt
PY Total Prof Fndrsng Expns$0PYTotalProfFndrsngExpnsAmt
CY Total Prof Fndrsng Expns$0CYTotalProfFndrsngExpnsAmt
CY Total Fundraising Expense$2,984,163CYTotalFundraisingExpenseAmt
PY Other Expenses$22,256,789PYOtherExpensesAmt
CY Other Expenses$24,050,966CYOtherExpensesAmt
PY Total Expenses$50,025,587PYTotalExpensesAmt
CY Total Expenses$54,692,137CYTotalExpensesAmt
PY Revenues Less Expenses-$1,577,281PYRevenuesLessExpensesAmt
CY Revenues Less Expenses$4,329,220CYRevenuesLessExpensesAmt
Total Assets BOY$444,959,376TotalAssetsBOYAmt
Total Assets EOY$556,036,805TotalAssetsEOYAmt
Total Liabilities BOY$85,605,009TotalLiabilitiesBOYAmt
Total Liabilities EOY$140,522,830TotalLiabilitiesEOYAmt
Net Assets Or Fund Balances BOY$359,354,367NetAssetsOrFundBalancesBOYAmt
Net Assets Or Fund Balances EOY$415,513,975NetAssetsOrFundBalancesEOYAmt
Info In Schedule O Part IIIYes (X)InfoInScheduleOPartIIIInd
MissionMIDDLESEX SCHOOL HELPS STUDENTS FIND THEIR PROMISE THROUGH RIGOROUS INTELLECTUAL, PHYSICAL, CREATIVE, AND ETHICAL EDUCATION. WE VALUE INTEGRITY, KINDNESS, INCLUSIVITY, EXCELLENCE, AND ENGAGEMENT IN SERVICE OR OUR COMMUNITY AND THE WIDER WORLD.MissionDesc
Significant New Program Srvc0SignificantNewProgramSrvcInd
Significant Change0SignificantChangeInd
Expense$40,236,285ExpenseAmt
Grant$8,297,320GrantAmt
Revenue$31,708,845RevenueAmt
DescMIDDLESEX SCHOOL IS A NON-SECTARIAN COLLEGE PREPARATORY BOARDING AND DAY SCHOOL FOR BOYS AND GIRLS IN GRADES 9-12. MIDDLESEX HAS ALWAYS PRIDED ITSELF IN ATTRACTING A DIVERSE, HIGHLY MOTIVATED GROUP OF STUDENTS FROM ACROSS THE COUNTRY AND MORE RECENTLY THE WORLD. CURRENT ENROLLMENT IS ABOUT 420 STUDENTS FROM MANY STATES AND COUNTRIES. FOUNDED IN 1901, THE SCHOOL HAS A LONG TRADITION OF PLACING STUDENTS IN THE MOST SELECTIVE COLLEGES. MIDDLESEX OFFERS A CHALLENGING ACADEMIC PROGRAM. IN ADDITION TO ITS SCHOOL YEAR PROGRAM, MIDDLESEX MAKES USE OF ITS CAMPUS FACILITIES FOR SUMMER AUXILIARY PROGRAMS CONSISTENT WITH ITS PRIMARY MISSION.Desc
Total Program Service Expenses$40,236,285TotalProgramServiceExpensesAmt
Described In Section501c3Yes (1)DescribedInSection501c3Ind
Schedule B RequiredYes (1)ScheduleBRequiredInd
Political Campaign Acty0PoliticalCampaignActyInd
Lobbying ActivitiesYes (1)LobbyingActivitiesInd
Subject To Proxy Tax0SubjectToProxyTaxInd
Donor Advised Fund0DonorAdvisedFundInd
Conservation EasementsYes (1)ConservationEasementsInd
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 StmtYes (1)IndependentAuditFinclStmtInd
Consolidated Audit Fincl Stmt0ConsolidatedAuditFinclStmtInd
School OperatingYes (1)SchoolOperatingInd
Foreign Office0ForeignOfficeInd
Foreign ActivitiesYes (1)ForeignActivitiesInd
More Than5000 K To Org0MoreThan5000KToOrgInd
More Than5000 K To Individuals0MoreThan5000KToIndividualsInd
Professional Fundraising0ProfessionalFundraisingInd
Fundraising ActivitiesYes (1)FundraisingActivitiesInd
Gaming Activities0GamingActivitiesInd
Operate Hospital0OperateHospitalInd
Grants To OrganizationsYes (1)GrantsToOrganizationsInd
Grants To IndividualsYes (1)GrantsToIndividualsInd
Schedule J RequiredYes (1)ScheduleJRequiredInd
Tax Exempt BondsYes (1)TaxExemptBondsInd
Invest Tax Exempt Bonds0InvestTaxExemptBondsInd
Escrow Account0EscrowAccountInd
On Behalf Of Issuer0OnBehalfOfIssuerInd
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 Contribution0DeductibleArtContributionInd
Terminate Operations0TerminateOperationsInd
Partial Liquidation0PartialLiquidationInd
Disregarded Entity0DisregardedEntityInd
Related EntityYes (1)RelatedEntityInd
Related Organization Ctrl EntYes (1)RelatedOrganizationCtrlEntInd
Transaction With Control Ent0TransactionWithControlEntInd
Trnsfr Exmpt Non Chrtbl Rltd Org0TrnsfrExmptNonChrtblRltdOrgInd
Activities Conducted Prtshp0ActivitiesConductedPrtshpInd
Schedule O RequiredYes (1)ScheduleORequiredInd
IRP Document153IRPDocumentCnt
IRP Document W2 G0IRPDocumentW2GCnt
Backup Wthld ComplianceYes (1)BackupWthldComplianceInd
Employee260EmployeeCnt
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 ContributionsYes (1)QuidProQuoContributionsInd
Quid Pro Quo Contri DisclYes (1)QuidProQuoContriDisclInd
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 Members33GoverningBodyVotingMembersCnt
Independent Voting Member32IndependentVotingMemberCnt
Family Or Business RlnYes (1)FamilyOrBusinessRlnInd
Delegation Of Mgmt Duties0DelegationOfMgmtDutiesInd
Change To Org Documents0ChangeToOrgDocumentsInd
Material Diversion Or Misuse0MaterialDiversionOrMisuseInd
Members Or Stockholders0MembersOrStockholdersInd
Election Of Board Members0ElectionOfBoardMembersInd
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
Upon RequestYes (X)UponRequestInd

Books In Care Of Detail BooksInCareOfDetail

Business Name BusinessName

FieldValueIRS element (for citing)
Business Name Line1MICHAEL J HOYLE CFOOBusinessNameLine1Txt
FieldValueIRS element (for citing)
Phone9783692550PhoneNum

US Address USAddress

FieldValueIRS element (for citing)
Address Line11400 LOWELL ROADAddressLine1Txt
CityCONCORDCityNm
State AbbreviationMAStateAbbreviationCd
ZIP01742ZIPCd

Form990 Part VII Section A Form990PartVIISectionAGrp (42 entries)

TitleTitleTxtAverage Hours Per WeekAverageHoursPerWeekRtAverage Hours Per Week Rltd OrgAverageHoursPerWeekRltdOrgRtIndividual Trustee Or DirectorIndividualTrusteeOrDirectorIndOfficerOfficerIndReportable Comp From OrgReportableCompFromOrgAmtReportable Comp From Rltd OrgReportableCompFromRltdOrgAmtOther CompensationOtherCompensationAmtKey EmployeeKeyEmployeeIndHighest Compensated EmployeeHighestCompensatedEmployeeInd
ELIZABETH SPEERS
HEAD OF SCHOOL80.000.00Yes (X)Yes (X)$703,610$0$132,539
ALEXANDER C BANKER
TRUSTEE5.000.00Yes (X)$0$0$0
AFUA OFOSU-BARKO
TRUSTEE5.000.00Yes (X)$0$0$0
MARY LOU BOUTWELL
TRUSTEE5.000.00Yes (X)$0$0$0
JOHANNA BOYNTON
TRUSTEE5.000.00Yes (X)$0$0$0
JOY CONNOLLY
TRUSTEE5.000.00Yes (X)$0$0$0
CAROLINE COUNSELMAN
TRUSTEE5.000.00Yes (X)$0$0$0
JAMES F CURTIS III
TRUSTEE5.000.00Yes (X)$0$0$0
MADELINE DEMOULAS
TRUSTEE5.000.00Yes (X)$0$0$0
ABIGAIL MARR DOFT
TRUSTEE5.000.00Yes (X)$0$0$0
SAMANTHA DU
TRUSTEE5.000.00Yes (X)$0$0$0
JENNIFER BURNES FULTON
TRUSTEE5.000.00Yes (X)$0$0$0
WILLIAM J HO
TRUSTEE5.000.00Yes (X)$0$0$0
ROBERT W IULIANO
TRUSTEE5.000.00Yes (X)$0$0$0
CHARLES MADDOCK
TRUSTEE5.000.00Yes (X)$0$0$0
PATRICIA A MELTON
TRUSTEE5.000.00Yes (X)$0$0$0
FREDDIE PANTOJA
TRUSTEE5.000.00Yes (X)$0$0$0
DR COURTNEY PORTLOCK
TRUSTEE5.000.00Yes (X)$0$0$0
MARY PRYSHLAK
TRUSTEE5.000.00Yes (X)$0$0$0
JASMINE RICHARDS
TRUSTEE5.000.00Yes (X)$0$0$0
ALEX RUSSELL
TRUSTEE5.000.00Yes (X)$0$0$0
JUAN SABATER
TRUSTEE5.000.00Yes (X)$0$0$0
BRET STEPHENS
TRUSTEE5.000.00Yes (X)$0$0$0
CASS SUNSTEIN
TRUSTEE5.000.00Yes (X)$0$0$0
STANOY S TASSEV
TRUSTEE5.000.00Yes (X)$0$0$0
DUNE THORNE
TRUSTEE5.000.00Yes (X)$0$0$0
ROBERT C TRUMBULL
TRUSTEE5.000.00Yes (X)$0$0$0
JASON ROBART
PRESIDENT5.000.00Yes (X)Yes (X)$0$0$0
ALLEN J MODEL
VICE PRESIDENT5.000.00Yes (X)Yes (X)$0$0$0
ANNE T BASS
VICE PRESIDENT5.000.00Yes (X)Yes (X)$0$0$0
ROBERT M BASS
VICE PRESIDENT5.000.00Yes (X)Yes (X)$0$0$0
ANDREW PITTS
TREASURER5.000.00Yes (X)Yes (X)$0$0$0
SARAH LEARY
SECRETARY5.000.00Yes (X)Yes (X)$0$0$0
KARLYN MCNALL
ASSOCIATE HEAD OF SCHOOL80.000.00Yes (X)$402,584$0$115,435
THERESE CUNNINGHAM
CFO60.000.00Yes (X)$300,605$0$95,354
HEATHER PARKER
CHIEF ADVANCEMENT OFFICER60.000.00$219,998$0$24,551Yes (X)
GEORGE NOBLE
CHIEF ADVANCEMENT OFFICER60.000.00$218,277$0$118,542Yes (X)
DOUGLAS PRICE
DEAN OF ADMISSIONS & FINANCIAL AID60.000.00$181,109$0$53,579Yes (X)
KURTIS LACROIX
DIRECTOR OF PROJECTS & SAFETY60.000.00$177,978$0$57,560Yes (X)
MARC CARTER
CHIEF INNOVATION OFFICER60.000.00$159,453$0$77,151Yes (X)
JOFFREY BREMOND
CONTROLLER60.000.00$144,757$0$31,313Yes (X)
MATTHEW DEGREEFF DEAN OF
COLLEGE COUNS. & STUDENT ENRICHMENT60.000.00$135,543$0$72,526Yes (X)
FieldValueIRS element (for citing)
Total Reportable Comp From Org$2,643,914TotalReportableCompFromOrgAmt
Tot Reportable Comp Rltd Org$0TotReportableCompRltdOrgAmt
Total Other Compensation$778,550TotalOtherCompensationAmt
Indiv Rcvd Greater Than100 K18IndivRcvdGreaterThan100KCnt
Former Ofcr Employees Listed0FormerOfcrEmployeesListedInd
Total Comp Greater Than150 KYes (1)TotalCompGreaterThan150KInd
Compensation From Other Srcs0CompensationFromOtherSrcsInd

Contractor Compensation ContractorCompensationGrp (5 entries)

Address Line1ContractorAddress/USAddress/AddressLine1TxtCityContractorAddress/USAddress/CityNmState AbbreviationContractorAddress/USAddress/StateAbbreviationCdZIPContractorAddress/USAddress/ZIPCdServicesServicesDescCompensationCompensationAmt
ERLAND CONSTRUCTION INC
71 3RD AVENUEBURLINGTONMA01803CONSTRUCTION COMPANY$13,767,026
FLIK
PO BOX 417632BOSTONMA02241FOOD SERVICE CONTRACTOR$2,535,897
RAD SPORTS
171 VFW DRIVEROCKLANDMA02370CONSTRUCTION COMPANY$1,554,920
WIND RIVER ENVIRONMENTAL LLC
245 PLYMOUTH STREETCARVERMA02230WASTE WATER MANAGEMENT$839,727
INFRANET SOLUTIONS INC
2 BATTERYMARCH PARKQUINCYMA02169IT SERVICES$691,083
FieldValueIRS element (for citing)
Cntrct Rcvd Greater Than100 K30CntrctRcvdGreaterThan100KCnt
Fundraising$11,400FundraisingAmt
All Other Contributions$14,803,423AllOtherContributionsAmt
Noncash Contributions$5,907,251NoncashContributionsAmt
Total Contributions$14,814,823TotalContributionsAmt

Program Service Revenue ProgramServiceRevenueGrp

FieldValueIRS element (for citing)
DescTUITION REVENUEDesc
Business611600BusinessCd
Total Revenue Column$30,105,880TotalRevenueColumnAmt
Related Or Exempt Func Income$30,105,880RelatedOrExemptFuncIncomeAmt
FieldValueIRS element (for citing)
Total Program Service Revenue$30,105,880TotalProgramServiceRevenueAmt

Investment Income InvestmentIncomeGrp

FieldValueIRS element (for citing)
Total Revenue Column$3,509,439TotalRevenueColumnAmt
Unrelated Business Revenue$74,363UnrelatedBusinessRevenueAmt
Exclusion$3,435,076ExclusionAmt

Gross Rents GrossRentsGrp

FieldValueIRS element (for citing)
Real$118,020RealAmt

Less Rental Expenses LessRentalExpensesGrp

FieldValueIRS element (for citing)
Real$77,190RealAmt

Rental Income Or Loss RentalIncomeOrLossGrp

FieldValueIRS element (for citing)
Real$40,830RealAmt

Net Rental Income Or Loss NetRentalIncomeOrLossGrp

FieldValueIRS element (for citing)
Total Revenue Column$40,830TotalRevenueColumnAmt
Exclusion$40,830ExclusionAmt

Gross Amount Sales Assets GrossAmountSalesAssetsGrp

FieldValueIRS element (for citing)
Securities$42,562,619SecuritiesAmt
Other$400OtherAmt

Less Cost Oth Basis Sales Expnss LessCostOthBasisSalesExpnssGrp

FieldValueIRS element (for citing)
Securities$33,829,287SecuritiesAmt
Other$0OtherAmt

Gain Or Loss GainOrLossGrp

FieldValueIRS element (for citing)
Securities$8,733,332SecuritiesAmt
Other$400OtherAmt

Net Gain Or Loss Investments NetGainOrLossInvestmentsGrp

FieldValueIRS element (for citing)
Total Revenue Column$8,733,732TotalRevenueColumnAmt
Exclusion$8,733,732ExclusionAmt
FieldValueIRS element (for citing)
Fundraising Gross Income$32,300FundraisingGrossIncomeAmt
Contri Rpt Fundraising Event$11,400ContriRptFundraisingEventAmt
Fundraising Direct Expenses$35,546FundraisingDirectExpensesAmt

Net Incm From Fundraising Evt NetIncmFromFundraisingEvtGrp

FieldValueIRS element (for citing)
Total Revenue Column-$3,246TotalRevenueColumnAmt
Exclusion-$3,246ExclusionAmt
FieldValueIRS element (for citing)
Gross Sales Of Inventory$112,379GrossSalesOfInventoryAmt
Cost Of Goods Sold$103,706CostOfGoodsSoldAmt

Net Income Or Loss NetIncomeOrLossGrp

FieldValueIRS element (for citing)
Total Revenue Column$8,673TotalRevenueColumnAmt
Exclusion$8,673ExclusionAmt

Other Revenue Misc OtherRevenueMiscGrp (3 entries)

DescDescBusinessBusinessCdTotal Revenue ColumnTotalRevenueColumnAmtRelated Or Exempt Func IncomeRelatedOrExemptFuncIncomeAmt
EMPLOYEE RETENTION CREDIT900099$632,713$632,713
TRIPS & OTHER STUDENT ACTIVITIES900099$518,367$518,367
MUSIC TUTOR INCOME611600$118,369$118,369

Miscellaneous Revenue MiscellaneousRevenueGrp

FieldValueIRS element (for citing)
Total Revenue Column$541,777TotalRevenueColumnAmt
Related Or Exempt Func Income$333,516RelatedOrExemptFuncIncomeAmt
Exclusion$208,261ExclusionAmt
FieldValueIRS element (for citing)
Other Revenue Total$1,811,226OtherRevenueTotalAmt

Total Revenue TotalRevenueGrp

FieldValueIRS element (for citing)
Total Revenue Column$59,021,357TotalRevenueColumnAmt
Related Or Exempt Func Income$31,708,845RelatedOrExemptFuncIncomeAmt
Unrelated Business Revenue$74,363UnrelatedBusinessRevenueAmt
Exclusion$12,423,326ExclusionAmt

Grants To Domestic Orgs GrantsToDomesticOrgsGrp

FieldValueIRS element (for citing)
Total$149,639TotalAmt
Program Services$149,639ProgramServicesAmt

Grants To Domestic Individuals GrantsToDomesticIndividualsGrp

FieldValueIRS element (for citing)
Total$8,147,681TotalAmt
Program Services$8,147,681ProgramServicesAmt

Comp Current Ofcr Directors CompCurrentOfcrDirectorsGrp

FieldValueIRS element (for citing)
Total$2,198,178TotalAmt
Program Services$1,270,671ProgramServicesAmt
Management And General$386,544ManagementAndGeneralAmt
Fundraising$540,963FundraisingAmt

Other Salaries And Wages OtherSalariesAndWagesGrp

FieldValueIRS element (for citing)
Total$13,502,783TotalAmt
Program Services$9,291,424ProgramServicesAmt
Management And General$3,393,414ManagementAndGeneralAmt
Fundraising$817,945FundraisingAmt

Pension Plan Contributions PensionPlanContributionsGrp

FieldValueIRS element (for citing)
Total$1,231,526TotalAmt
Program Services$847,769ProgramServicesAmt
Management And General$311,632ManagementAndGeneralAmt
Fundraising$72,125FundraisingAmt

Other Employee Benefits OtherEmployeeBenefitsGrp

FieldValueIRS element (for citing)
Total$4,373,304TotalAmt
Program Services$2,992,776ProgramServicesAmt
Management And General$1,072,365ManagementAndGeneralAmt
Fundraising$308,163FundraisingAmt

Payroll Taxes PayrollTaxesGrp

FieldValueIRS element (for citing)
Total$1,038,060TotalAmt
Program Services$701,725ProgramServicesAmt
Management And General$251,598ManagementAndGeneralAmt
Fundraising$84,737FundraisingAmt

Fees For Services Legal FeesForServicesLegalGrp

FieldValueIRS element (for citing)
Total$303,571TotalAmt
Program Services$11,318ProgramServicesAmt
Management And General$276,465ManagementAndGeneralAmt
Fundraising$15,788FundraisingAmt

Fees For Services Accounting FeesForServicesAccountingGrp

FieldValueIRS element (for citing)
Total$204,476TotalAmt
Management And General$204,476ManagementAndGeneralAmt

Fees For Services Lobbying FeesForServicesLobbyingGrp

FieldValueIRS element (for citing)
Total$4,190TotalAmt
Program Services$1,848ProgramServicesAmt
Management And General$2,342ManagementAndGeneralAmt

Fees For Srvc Invst Mgmnt Fees FeesForSrvcInvstMgmntFeesGrp

FieldValueIRS element (for citing)
Total$2,580,252TotalAmt
Management And General$2,580,252ManagementAndGeneralAmt

Fees For Services Other FeesForServicesOtherGrp

FieldValueIRS element (for citing)
Total$1,901,714TotalAmt
Program Services$1,307,193ProgramServicesAmt
Management And General$509,817ManagementAndGeneralAmt
Fundraising$84,704FundraisingAmt

Advertising AdvertisingGrp

FieldValueIRS element (for citing)
Total$46,993TotalAmt
Management And General$46,993ManagementAndGeneralAmt

Office Expenses OfficeExpensesGrp

FieldValueIRS element (for citing)
Total$711,229TotalAmt
Program Services$400,387ProgramServicesAmt
Management And General$219,918ManagementAndGeneralAmt
Fundraising$90,924FundraisingAmt

Information Technology InformationTechnologyGrp

FieldValueIRS element (for citing)
Total$1,282,925TotalAmt
Program Services$459,469ProgramServicesAmt
Management And General$699,293ManagementAndGeneralAmt
Fundraising$124,163FundraisingAmt

Royalties RoyaltiesGrp

FieldValueIRS element (for citing)
Total$3,310TotalAmt
Program Services$3,310ProgramServicesAmt

Occupancy OccupancyGrp

FieldValueIRS element (for citing)
Total$4,147,179TotalAmt
Program Services$3,942,517ProgramServicesAmt
Management And General$155,194ManagementAndGeneralAmt
Fundraising$49,468FundraisingAmt

Travel TravelGrp

FieldValueIRS element (for citing)
Total$904,703TotalAmt
Program Services$656,763ProgramServicesAmt
Management And General$89,313ManagementAndGeneralAmt
Fundraising$158,627FundraisingAmt

Conferences Meetings ConferencesMeetingsGrp

FieldValueIRS element (for citing)
Total$108,934TotalAmt
Program Services$85,616ProgramServicesAmt
Management And General$21,135ManagementAndGeneralAmt
Fundraising$2,183FundraisingAmt

Interest InterestGrp

FieldValueIRS element (for citing)
Total$472,513TotalAmt
Program Services$444,470ProgramServicesAmt
Management And General$22,311ManagementAndGeneralAmt
Fundraising$5,732FundraisingAmt

Depreciation Depletion DepreciationDepletionGrp

FieldValueIRS element (for citing)
Total$5,901,381TotalAmt
Program Services$5,551,134ProgramServicesAmt
Management And General$278,652ManagementAndGeneralAmt
Fundraising$71,595FundraisingAmt

Insurance InsuranceGrp

FieldValueIRS element (for citing)
Total$514,740TotalAmt
Program Services$222,410ProgramServicesAmt
Management And General$289,466ManagementAndGeneralAmt
Fundraising$2,864FundraisingAmt

Other Expenses OtherExpensesGrp (4 entries)

DescDescTotalTotalAmtProgram ServicesProgramServicesAmtManagement And GeneralManagementAndGeneralAmtFundraisingFundraisingAmt
FOOD SERVICE$2,951,608$2,514,030$170,219$267,359
EQUIPMENT RENTALS$441,646$271,193$33,527$136,926
MINOR EQUIPMENT$227,085$208,363$13,812$4,910
MEMBERSHIP FEES$106,009$17,628$78,913$9,468

All Other Expenses AllOtherExpensesGrp

FieldValueIRS element (for citing)
Total$1,236,508TotalAmt
Program Services$736,951ProgramServicesAmt
Management And General$364,038ManagementAndGeneralAmt
Fundraising$135,519FundraisingAmt

Total Functional Expenses TotalFunctionalExpensesGrp

FieldValueIRS element (for citing)
Total$54,692,137TotalAmt
Program Services$40,236,285ProgramServicesAmt
Management And General$11,471,689ManagementAndGeneralAmt
Fundraising$2,984,163FundraisingAmt

Cash Non Interest Bearing CashNonInterestBearingGrp

FieldValueIRS element (for citing)
BOY$1,785,042BOYAmt
EOY$5,566,531EOYAmt

Savings And Temp Cash Invst SavingsAndTempCashInvstGrp

FieldValueIRS element (for citing)
BOY$4,304,191BOYAmt
EOY$48,728,063EOYAmt

Pledges And Grants Receivable PledgesAndGrantsReceivableGrp

FieldValueIRS element (for citing)
BOY$47,944,166BOYAmt
EOY$82,576,337EOYAmt

Accounts Receivable AccountsReceivableGrp

FieldValueIRS element (for citing)
BOY$15,857,999BOYAmt
EOY$14,447,660EOYAmt

Inventories For Sale Or Use InventoriesForSaleOrUseGrp

FieldValueIRS element (for citing)
BOY$45,569BOYAmt
EOY$50,379EOYAmt

Prepaid Expenses Defrd Charges PrepaidExpensesDefrdChargesGrp

FieldValueIRS element (for citing)
BOY$3,071,846BOYAmt
EOY$901,450EOYAmt
FieldValueIRS element (for citing)
Land Bldg Equip Cost Or Other Bss$215,138,845LandBldgEquipCostOrOtherBssAmt
Land Bldg Equip Accum Deprec$102,893,321LandBldgEquipAccumDeprecAmt

Land Bldg Equip Basis Net LandBldgEquipBasisNetGrp

FieldValueIRS element (for citing)
BOY$99,727,267BOYAmt
EOY$112,245,524EOYAmt

Investments Pub Traded Sec InvestmentsPubTradedSecGrp

FieldValueIRS element (for citing)
BOY$15,429,132BOYAmt
EOY$13,225,854EOYAmt

Investments Other Securities InvestmentsOtherSecuritiesGrp

FieldValueIRS element (for citing)
BOY$197,563,949BOYAmt
EOY$207,194,750EOYAmt

Other Assets Total OtherAssetsTotalGrp

FieldValueIRS element (for citing)
BOY$59,230,215BOYAmt
EOY$71,100,257EOYAmt

Total Assets TotalAssetsGrp

FieldValueIRS element (for citing)
BOY$444,959,376BOYAmt
EOY$556,036,805EOYAmt

Accounts Payable Accr Expnss AccountsPayableAccrExpnssGrp

FieldValueIRS element (for citing)
BOY$4,306,808BOYAmt
EOY$7,514,694EOYAmt

Deferred Revenue DeferredRevenueGrp

FieldValueIRS element (for citing)
BOY$22,354,086BOYAmt
EOY$23,079,254EOYAmt

Tax Exempt Bond Liabilities TaxExemptBondLiabilitiesGrp

FieldValueIRS element (for citing)
BOY$17,354,612BOYAmt
EOY$63,561,550EOYAmt

Other Liabilities OtherLiabilitiesGrp

FieldValueIRS element (for citing)
BOY$41,589,503BOYAmt
EOY$46,367,332EOYAmt

Total Liabilities TotalLiabilitiesGrp

FieldValueIRS element (for citing)
BOY$85,605,009BOYAmt
EOY$140,522,830EOYAmt
FieldValueIRS element (for citing)
Organization Follows FASB117Yes (X)OrganizationFollowsFASB117Ind

No Donor Restriction Net Assets NoDonorRestrictionNetAssetsGrp

FieldValueIRS element (for citing)
BOY$108,126,407BOYAmt
EOY$143,040,928EOYAmt

Donor Restriction Net Assets DonorRestrictionNetAssetsGrp

FieldValueIRS element (for citing)
BOY$251,227,960BOYAmt
EOY$272,473,047EOYAmt

Total Net Assets Fund Balance TotalNetAssetsFundBalanceGrp

FieldValueIRS element (for citing)
BOY$359,354,367BOYAmt
EOY$415,513,975EOYAmt

Tot Liab Net Assets Fund Balance TotLiabNetAssetsFundBalanceGrp

FieldValueIRS element (for citing)
BOY$444,959,376BOYAmt
EOY$556,036,805EOYAmt
FieldValueIRS element (for citing)
Info In Schedule O Part XIYes (X)InfoInScheduleOPartXIInd
Reconcilation Revenue Expnss$4,329,220ReconcilationRevenueExpnssAmt
Net Unrlzd Gains Losses Invst$9,814,924NetUnrlzdGainsLossesInvstAmt
Other Changes In Net Assets$42,015,464OtherChangesInNetAssetsAmt
Method Of Accounting AccrualYes (X)MethodOfAccountingAccrualInd
Accountant Compile Or Review0AccountantCompileOrReviewInd
FS AuditedYes (1)FSAuditedInd

FS Audited Basis FSAuditedBasisGrp

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

Schedule A IRS990ScheduleA

FieldValueIRS element (for citing)
SchoolYes (X)SchoolInd

Gifts Grants Contri Rcvd170 GiftsGrantsContriRcvd170Grp

FieldValueIRS element (for citing)
Current Tax Year Minus4 Years$8,099,190CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years$6,254,153CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years$6,283,135CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year$5,462,852CurrentTaxYearMinus1YearAmt
Current Tax Year$14,814,823CurrentTaxYearAmt
Total$40,914,153TotalAmt

Total Calendar Year170 TotalCalendarYear170Grp

FieldValueIRS element (for citing)
Current Tax Year Minus4 Years$8,099,190CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years$6,254,153CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years$6,283,135CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year$5,462,852CurrentTaxYearMinus1YearAmt
Current Tax Year$14,814,823CurrentTaxYearAmt
Total$40,914,153TotalAmt
FieldValueIRS element (for citing)
Substantial Contributors Tot$7,669,120SubstantialContributorsTotAmt
Public Support Total170$33,245,033PublicSupportTotal170Amt

Gross Investment Income170 GrossInvestmentIncome170Grp

FieldValueIRS element (for citing)
Current Tax Year Minus4 Years$2,608,160CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years$2,204,976CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years$2,524,582CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year$3,060,660CurrentTaxYearMinus1YearAmt
Current Tax Year$3,553,096CurrentTaxYearAmt
Total$13,951,474TotalAmt

Unrelated Business Net Incm170 UnrelatedBusinessNetIncm170Grp

FieldValueIRS element (for citing)
Current Tax Year Minus4 Years$6,312CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years$77,915CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus1 Year$122,870CurrentTaxYearMinus1YearAmt
Current Tax Year$74,363CurrentTaxYearAmt
Total$281,460TotalAmt

Other Income170 OtherIncome170Grp

FieldValueIRS element (for citing)
Current Tax Year Minus4 Years$71,948CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years$108,451CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years$112,813CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year$142,663CurrentTaxYearMinus1YearAmt
Current Tax Year$352,940CurrentTaxYearAmt
Total$788,815TotalAmt
FieldValueIRS element (for citing)
Total Support$55,935,902TotalSupportAmt
Gross Receipts Rltd Activities$143,292,934GrossReceiptsRltdActivitiesAmt
Public Support CY1700.59430PublicSupportCY170Pct
Public Support PY1700.66610PublicSupportPY170Pct
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, SPECIAL RULE IN SCHEDULE B:FormAndLineReferenceDesc
ExplanationTHE SCHOOL HISTORICALLY HAS USED THE GREATER THAN $5,000 OR 2% RULE IN REPORTING CONTRIBUTORS IN COMPLIANCE WITH THE SCHEDULE B INSTRUCTIONS, THEREFORE, DUE TO THE BROADLY SUPPORTED NATURE OF THE ORGANIZATION AND DEEMED MEETING THE PUBLIC SUPPORT TEST UNDER CURRENT GUIDANCE, CONTRIBUTORS OVER THE 2% RULE FOR SECTION 509(A)(1) BROADLY SUPPORTED ORGANIZATIONS ARE REPORTED. THE SCHOOL HAS COMPLETED SCHEDULE A, PART II FOR THE PURPOSE OF APPLYING THE SPECIAL RULE ON SCHEDULE B.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 C IRS990ScheduleC

FieldValueIRS element (for citing)
Volunteers0VolunteersInd
Paid Staff Or Management0PaidStaffOrManagementInd
Media Advertisements0MediaAdvertisementsInd
Mailings Members0MailingsMembersInd
Publications Or Broadcast0PublicationsOrBroadcastInd
Grants Other Organizations0GrantsOtherOrganizationsInd
Direct Contact Legislators0DirectContactLegislatorsInd
Rallies Demonstrations0RalliesDemonstrationsInd
Other ActivitiesYes (1)OtherActivitiesInd
Other Activities$0OtherActivitiesAmt
Total Lobbying Expenditures$0TotalLobbyingExpendituresAmt

Supplemental Information Detail SupplementalInformationDetail

FieldValueIRS element (for citing)
Form And Line ReferencePART II-B, LINE 1:FormAndLineReferenceDesc
ExplanationMIDDLESEX SCHOOL IS A MEMBER OF THE MASSACHUSETTS ASSOCIATION OF NONPROFIT SCHOOLS & COLLEGES, A GROUP THAT MAY ENGAGE IN LOBBYING ACTIVITIES. THEREFORE, A PORTION OF THE DUES MAY BE ATTRIBUTABLE TO LOBBYING ACTIVITIES AND AS SUCH NO DETERMINATIVE AMOUNT IS LISTED IN THE SCHEDULE.ExplanationTxt

Schedule D IRS990ScheduleD

FieldValueIRS element (for citing)
Protection Natural HabitatYes (X)ProtectionNaturalHabitatInd
Total Easements2TotalEasementsCnt
Total Acreage160.00TotalAcreageCnt
Historic Structure Easements0HistoricStructureEasementsCnt
Historic Strctr Easements Aftr0HistoricStrctrEasementsAftrCnt
Modified Easements0ModifiedEasementsCnt
States Easements Held1StatesEasementsHeldCnt
Written Policy Monitoring0WrittenPolicyMonitoringInd
Staff Hours Spent Enforcement8.00StaffHoursSpentEnforcementCnt
Expenses Incurred Enforcement$0ExpensesIncurredEnforcementAmt
Collection Used PreservationYes (X)CollectionUsedPreservationInd
Solicited Assets Sale0SolicitedAssetsSaleInd

CY Endwmt Fund CYEndwmtFundGrp

FieldValueIRS element (for citing)
Beginning Year Balance$210,543,449BeginningYearBalanceAmt
Contributions$566,408ContributionsAmt
Investment Earnings Or Losses$18,690,657InvestmentEarningsOrLossesAmt
Other Expenditures$13,067,635OtherExpendituresAmt
End Year Balance$216,732,879EndYearBalanceAmt

CY Minus1 Yr Endwmt Fund CYMinus1YrEndwmtFundGrp

FieldValueIRS element (for citing)
Beginning Year Balance$209,931,778BeginningYearBalanceAmt
Contributions$676,344ContributionsAmt
Investment Earnings Or Losses$11,960,343InvestmentEarningsOrLossesAmt
Other Expenditures$12,025,016OtherExpendituresAmt
End Year Balance$210,543,449EndYearBalanceAmt

CY Minus2 Yr Endwmt Fund CYMinus2YrEndwmtFundGrp

FieldValueIRS element (for citing)
Beginning Year Balance$220,472,785BeginningYearBalanceAmt
Contributions$3,654,559ContributionsAmt
Investment Earnings Or Losses-$2,784,866InvestmentEarningsOrLossesAmt
Other Expenditures$11,410,700OtherExpendituresAmt
End Year Balance$209,931,778EndYearBalanceAmt

CY Minus3 Yr Endwmt Fund CYMinus3YrEndwmtFundGrp

FieldValueIRS element (for citing)
Beginning Year Balance$252,327,972BeginningYearBalanceAmt
Contributions$2,297,127ContributionsAmt
Investment Earnings Or Losses-$22,738,981InvestmentEarningsOrLossesAmt
Other Expenditures$11,413,333OtherExpendituresAmt
End Year Balance$220,472,785EndYearBalanceAmt

CY Minus4 Yr Endwmt Fund CYMinus4YrEndwmtFundGrp

FieldValueIRS element (for citing)
Beginning Year Balance$179,678,110BeginningYearBalanceAmt
Contributions$1,605,192ContributionsAmt
Investment Earnings Or Losses$80,114,546InvestmentEarningsOrLossesAmt
Other Expenditures$9,069,876OtherExpendituresAmt
End Year Balance$252,327,972EndYearBalanceAmt
FieldValueIRS element (for citing)
Board Designated Balance EOY0.13000BoardDesignatedBalanceEOYPct
Prmnnt Endowment Balance EOY0.41000PrmnntEndowmentBalanceEOYPct
Term Endowment Balance EOY0.46000TermEndowmentBalanceEOYPct
Endowments Held Unrelated Org0EndowmentsHeldUnrelatedOrgInd
Endowments Held Related Org0EndowmentsHeldRelatedOrgInd

Land LandGrp

FieldValueIRS element (for citing)
Other Cost Or Other Basis$3,096,935OtherCostOrOtherBasisAmt
Book Value$3,096,935BookValueAmt

Buildings BuildingsGrp

FieldValueIRS element (for citing)
Other Cost Or Other Basis$180,655,735OtherCostOrOtherBasisAmt
Depreciation$92,890,398DepreciationAmt
Book Value$87,765,337BookValueAmt

Equipment EquipmentGrp

FieldValueIRS element (for citing)
Other Cost Or Other Basis$10,577,952OtherCostOrOtherBasisAmt
Depreciation$10,002,923DepreciationAmt
Book Value$575,029BookValueAmt

Other Land Buildings OtherLandBuildingsGrp

FieldValueIRS element (for citing)
Other Cost Or Other Basis$20,808,223OtherCostOrOtherBasisAmt
Book Value$20,808,223BookValueAmt
FieldValueIRS element (for citing)
Total Book Value Land Buildings$112,245,524TotalBookValueLandBuildingsAmt

Other Securities OtherSecuritiesGrp (6 entries)

DescDescBook ValueBookValueAmtMethod ValuationMethodValuationCd
DOMESTIC EQUITY$45,314,341F
INTERNATIONAL EQUITY$30,788,442F
PRIVATE EQUITY$93,595,595F
ABSOLUTE RETURN$28,790,554F
REAL ASSETS$3,321,028F
OTHER$5,384,790F
FieldValueIRS element (for citing)
Total Book Value Securities$207,194,750TotalBookValueSecuritiesAmt

Other Assets Org OtherAssetsOrgGrp (2 entries)

DescDescBook ValueBookValueAmt
BENEFICIAL INTEREST IN CHARITABLE REMAINDER TRUSTS$70,768,312
OPERATING RIGHT-OF-USE ASSETS, NET$331,945
FieldValueIRS element (for citing)
Total Book Value Other Assets$71,100,257TotalBookValueOtherAssetsAmt

Other Liabilities Org OtherLiabilitiesOrgGrp (2 entries)

DescDescAmtAmt
LIABILITY ON CHARITABLE REMAINDER TRUSTS$46,049,163
OPERATING LEASE LIABILITY$318,169
FieldValueIRS element (for citing)
Total Liability$46,367,332TotalLiabilityAmt
Footnote TextYes (X)FootnoteTextInd
Total Rev Etc Audited Fincl Stmt$100,645,593TotalRevEtcAuditedFinclStmtAmt
Net Unrealized Gains Invst$9,814,924NetUnrealizedGainsInvstAmt
Other Revenue$31,592,870OtherRevenueAmt
Revenue Not Reported$41,407,794RevenueNotReportedAmt
Revenue Subtotal$59,237,799RevenueSubtotalAmt
Other Revenues Not Included-$216,442OtherRevenuesNotIncludedAmt
Revenue Not Reported Fincl Stmt-$216,442RevenueNotReportedFinclStmtAmt
Total Revenue Per Form990$59,021,357TotalRevenuePerForm990Amt
Tot Expns Etc Audited Fincl Stmt$44,485,985TotExpnsEtcAuditedFinclStmtAmt
Other Expenses Included$216,442OtherExpensesIncludedAmt
Expenses Not Reported$216,442ExpensesNotReportedAmt
Expenses Subtotal$44,269,543ExpensesSubtotalAmt
Investment Expenses Not Incld2$2,570,799InvestmentExpensesNotIncld2Amt
Other Expenses Not Included$7,851,795OtherExpensesNotIncludedAmt
Expenses Not Rpt Fincl Stmt$10,422,594ExpensesNotRptFinclStmtAmt
Total Expenses Per Form990$54,692,137TotalExpensesPerForm990Amt

Supplemental Information Detail SupplementalInformationDetail (9 entries)

Form And Line ReferenceFormAndLineReferenceDescExplanationExplanationTxt
PART II, LINE 5:THE SCHOOL MEETS ANNUALLY WITH THE TRUSTEES OF RESERVATIONS WHO ADMINISTER THE EASEMENTS AND TOUR THE SITE.
PART II, LINE 9:CONSERVATION EASEMENTS ON THE MIDDLESEX CAMPUS ARE RELATED TO THE PROTECTION/PRESERVATION OF WETLANDS AND THE PROTECTION OF RESIDENT WILDLIFE ON A PORTION OF THE MIDDLESEX PROPERTY. MIDDLESEX USES AN ENVIRONMENTAL CONSULTING FIRM ANNUALLY TO TEST THE WATER QUALITY OF THE WETLANDS ON THE MIDDLESEX CAMPUS WHERE AMPHIPODS (SALAMANDERS) RESIDE. THE LAND IS RECORDED AS AN ASSET ON THE BALANCE SHEET AND THE EXPENSES RELATED TO THE ENVIRONMENTAL CONSULTING SERVICES ARE CHARGED TO FACILITIES AND OPERATIONS.
PART III, LINE 4:THE SCHOOL MAINTAINS AND PRESERVES THE FOLLOWING ITEMS THAT WERE DONATED TO THE SCHOOL FOR DISPLAY AT THE SCHOOL'S LIBRARY: - FLAG OF THE 55TH MASSACHUSETTS VOLUNTEERS OF THE CIVIL WAR - SWORD OF N.P. HALLOWELL, COLONEL OF THE 55TH MASSACHUSETTS VOLUNTEERS OF THE CIVIL WAR - WORKS OF ART - RARE COLLECTION OF BOOKS
PART V, LINE 4:THE SCHOOL HAS ADOPTED INVESTMENT AND SPENDING POLICIES FOR ENDOWMENT ASSETS THAT ATTEMPT TO PROVIDE A PREDICTABLE STREAM OF FUNDING TO PROGRAMS SUPPORTED BY ITS ENDOWMENT WHILE SEEKING TO MAINTAIN THE PURCHASING POWER OF THE ENDOWMENT ASSETS. ENDOWMENT ASSETS INCLUDE THOSE ASSETS OF DONOR-RESTRICTED FUNDS THAT THE SCHOOL MUST HOLD IN PERPETUITY OR FOR DONOR-SPECIFIED PURPOSES AS WELL AS BOARD DESIGNATED FUNDS. THE SCHOOL EXPECTS ITS ENDOWMENT FUNDS, OVER TIME, TO PROVIDE AN AVERAGE RATE OF RETURN THAT WILL ALLOW THE PURCHASING POWER OF THE ENDOWMENT TO BE MAINTAINED. ACTUAL RETURNS IN ANY GIVEN YEAR MAY VARY FROM THIS AMOUNT. TO SATISFY ITS LONG-TERM RATE-OF-RETURN OBJECTIVES, THE SCHOOL RELIES ON A TOTAL RETURN STRATEGY IN WHICH INVESTMENT RETURNS ARE ACHIEVED THROUGH BOTH CAPITAL APPRECIATION (REALIZED AND UNREALIZED) AND CURRENT YIELD (INTEREST AND DIVIDENDS). THE SCHOOL TARGETS A DIVERSIFIED ASSET ALLOCATION THAT PLACES A GREATER EMPHASIS ON EQUITY-BASED INVESTMENTS TO ACHIEVE ITS LONG-TERM RETURN OBJECTIVES WITHIN PRUDENT RISK CONSTRAINTS. UNDER THIS POLICY, AS APPROVED BY THE BOARD OF TRUSTEES, THE ENDOWMENT ASSETS ARE INVESTED IN A MANNER THAT IS INTENDED TO PRODUCE RESULTS THAT EXCEED A POLICY INDEX.
PART X, LINE 2:THE SCHOOL IS QUALIFIED UNDER SECTION 501(C)(3) OF THE INTERNAL REVENUE CODE AND IS EXEMPT FROM FEDERAL AND STATE INCOME TAXES. THE SCHOOL IS SUBJECT TO FEDERAL AND STATE INCOME TAXES ON UNRELATED BUSINESS INCOME. THE SCHOOL FOLLOWS FASB ASC 740, INCOME TAXES, WHICH CLARIFIES THE ACCOUNTING FOR UNCERTAINTY IN INCOME TAXES BY PRESCRIBING THE RECOGNITION THRESHOLD A TAX POSITION IS REQUIRED TO MEET BEFORE BEING RECOGNIZED IN THE FINANCIAL STATEMENTS. THE SCHOOL RECOGNIZES A TAX BENEFIT FROM AN UNCERTAIN TAX POSITION ONLY IF IT IS MORE LIKELY THAN NOT THAT THE TAX POSITION WILL BE SUSTAINED ON EXAMINATION BY TAXING AUTHORITIES. MANAGEMENT EVALUATED THE SCHOOL'S TAX POSITIONS AND CONCLUDED THAT THE SCHOOL HAS NO MATERIAL UNCERTAINTIES IN INCOME TAXES. THE SCHOOL IS GENERALLY EXEMPT FROM INCOME TAX EXAMINATIONS BY THE U.S. FEDERAL, STATE OR LOCAL TAX AUTHORITIES FOR THREE YEARS FROM THE FILING DATE.
PART XI, LINE 2D - OTHER ADJUSTMENTS:INVESTMENT MANAGEMENT FEES NETTED WITH REVENUE ON AUDITED FS -2,570,799. CHANGE IN VALUE OF CHARITABLE REMAINDER TRUSTS 42,015,464. FINANCIAL AID NETTED WITH REVENUE ON AUDITED FINANCIAL STATEMENTS -7,851,795.
PART XI, LINE 4B - OTHER ADJUSTMENTS:COSTS OF GOODS SOLD REPORTED ON FORM 990, PART VIII, LINE 10B -103,706. RENTAL EXPENSES REPORTED ON FORM 990, PART VIII, LINE 6B -77,190. FUNDRAISING EXPENSES REPORTED ON FORM 990, PART VIII, LINE 8B -35,546.
PART XII, LINE 2D - OTHER ADJUSTMENTS:COSTS OF GOODS SOLD REPORTED ON FORM 990, PART VIII, LINE 10B 103,706. RENTAL EXPENSES REPORTED ON FORM 990, PART VIII, LINE 6B 77,190. FUNDRAISING EXPENSES REPORTED ON FORM 990, PART VIII, LINE 8B 35,546.
PART XII, LINE 4B - OTHER ADJUSTMENTS:FINANCIAL AID NETTED WITH REVENUE ON AUDITED FINANCIAL STATEMENTS 7,851,795.

Schedule E IRS990ScheduleE

FieldValueIRS element (for citing)
Nondiscriminatory Policy StmtYes (1)NondiscriminatoryPolicyStmtInd
Policy Stmt In Brochures EtcYes (1)PolicyStmtInBrochuresEtcInd
Plcy Pblczd Via Broadcast MediaYes (1)PlcyPblczdViaBroadcastMediaInd
Maintain Racial Comp RecsYes (1)MaintainRacialCompRecsInd
Maintain Scholarships RecsYes (1)MaintainScholarshipsRecsInd
Maintain Cpy Of Brochures EtcYes (1)MaintainCpyOfBrochuresEtcInd
Maintain Cpy Of All SolYes (1)MaintainCpyOfAllSolInd
Discriminate Race Stdnts Rghts0DiscriminateRaceStdntsRghtsInd
Discriminate Race Admiss Plcy0DiscriminateRaceAdmissPlcyInd
Discriminate Race Emplm Fculty0DiscriminateRaceEmplmFcultyInd
Discriminate Race Schs0DiscriminateRaceSchsInd
Discriminate Race Educ Plcy0DiscriminateRaceEducPlcyInd
Discriminate Race Use Of Fclts0DiscriminateRaceUseOfFcltsInd
Discriminate Race Athlt Prog0DiscriminateRaceAthltProgInd
Discriminate Race Other Acty0DiscriminateRaceOtherActyInd
Government Financial Aid Rcvd0GovernmentFinancialAidRcvdInd
Government Financial Aid Rvkd0GovernmentFinancialAidRvkdInd
Compliance With Rev Proc7550Yes (1)ComplianceWithRevProc7550Ind

Supplemental Information Detail SupplementalInformationDetail

FieldValueIRS element (for citing)
Form And Line ReferenceSCHEDULE E, PART I, LINE 3FormAndLineReferenceDesc
ExplanationNOTICE OF NONDISCRIMINATION POLICY(S) IS ON THE SCHOOL'S WEBSITE. AS A LISTED MEMBER OF THE ASSOCIATION OF INDEPENDENT SCHOOLS OF NEW ENGLAND (AISNE), THE SCHOOL HAS A NON-DISCRIMINATION STATEMENT.ExplanationTxt

Schedule F IRS990ScheduleF

Account Activities Outside US AccountActivitiesOutsideUSGrp (5 entries)

RegionRegionTxtOfficesOfficesCntEmployeeEmployeeCntType Of Activities ConductedTypeOfActivitiesConductedTxtRegion Total ExpendituresRegionTotalExpendituresAmt
MIDDLE EAST AND NORTH AFRICA00SCHOOL SPONSORED TRIP$39,847
EUROPE (INCLUDING ICELAND & GREENLAND)00SCHOOL SPONSORED TRIP$94,476
CENTRAL AMERICA AND THE CARIBBEANINVESTMENTS$57,463,975
EAST ASIA AND THE PACIFICINVESTMENTS$7,389,665
SOUTH ASIAINVESTMENTS$1,314,095
FieldValueIRS element (for citing)
Subtotal Offices0SubtotalOfficesCnt
Subtotal Employees0SubtotalEmployeesCnt
Continuation Total Office0ContinuationTotalOfficeCnt
Continuation Total Employee0ContinuationTotalEmployeeCnt
Total Office0TotalOfficeCnt
Total Employee0TotalEmployeeCnt
Subtotal Spent$66,302,058SubtotalSpentAmt
Continuation Spent$0ContinuationSpentAmt
Total Spent$66,302,058TotalSpentAmt
Transfer To Foreign CorpYes (1)TransferToForeignCorpInd
Interest In Foreign Trust0InterestInForeignTrustInd
Foreign Corp OwnershipYes (1)ForeignCorpOwnershipInd
Passive Foreign Investmest CoYes (1)PassiveForeignInvestmestCoInd
Foreign PartnershipYes (1)ForeignPartnershipInd
Boycott Countries0BoycottCountriesInd

Schedule G IRS990ScheduleG

Fundraising Event Information FundraisingEventInformationGrp

FieldValueIRS element (for citing)
Event1KINGMAN CUPEvent1Nm
Gross Receipts Event1$43,700GrossReceiptsEvent1Amt
Charitable Contri Event1$11,400CharitableContriEvent1Amt
Gross Revenue Event1$32,300GrossRevenueEvent1Amt
Rent Facility Costs Event1$16,625RentFacilityCostsEvent1Amt
Food And Beverage Event1$16,425FoodAndBeverageEvent1Amt
Other Direct Expenses Event1$2,496OtherDirectExpensesEvent1Amt
Gross Receipts Total$43,700GrossReceiptsTotalAmt
Charitable Contributions Tot$11,400CharitableContributionsTotAmt
Gross Revenue Total Events$32,300GrossRevenueTotalEventsAmt
Rent Fclty Costs Total Events$16,625RentFcltyCostsTotalEventsAmt
Food And Beverage Total Events$16,425FoodAndBeverageTotalEventsAmt
Oth Direct Expnss Total Events$2,496OthDirectExpnssTotalEventsAmt
Direct Expense Summary Events$35,546DirectExpenseSummaryEventsAmt
Net Income Summary-$3,246NetIncomeSummaryAmt

Schedule I IRS990ScheduleI

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

Recipient Table RecipientTable (3 entries)

Address Line1USAddress/AddressLine1TxtCityUSAddress/CityNmState AbbreviationUSAddress/StateAbbreviationCdZIPUSAddress/ZIPCdRecipient EINRecipientEINCash GrantCashGrantAmtNon Cash AssistanceNonCashAssistanceAmtPurpose Of GrantPurposeOfGrantTxtIRC SectionIRCSectionDesc
TOWN OF CONCORD - TOWN 250TH GIFT FUND
22 MONUMENT SQUARECONCORDMA01742040600112$50,000$0GIFT FOR 250 MEMORIAL TREES
TOWN OF CONCORD - TOWN 250TH GIFT FUND
22 MONUMENT SQUARECONCORDMA01742040600112$50,000$0POLICE DEPARTMENT FOR OFFICER BODY CAMERAS
THE MASSACHUSETTS COALITION FOR THE HOMELESS INC
69-73 BUFFUM STREETLYNNMA01902222599662$5,321$0EDUCATION ON HOMELESSNESS AND SUPPORT TO THE HOMELESS501(C)(3)
FieldValueIRS element (for citing)
Total501c3 Org3Total501c3OrgCnt

Grants Other Asst To Indiv In US GrantsOtherAsstToIndivInUSGrp (2 entries)

Grant TypeGrantTypeTxtRecipientRecipientCntNon Cash AssistanceNonCashAssistanceAmtValuation Method UsedValuationMethodUsedDescNon Cash AssistanceNonCashAssistanceDesc
FINANCIAL AID - TUITION132$7,851,795FMVFINANCIAL ASSISTANCE OFFSETS AGAINST THE STUDENTS' ACCOUNTS
FINANCIAL AID - INCIDENTALS132$295,886FMVFINANCIAL ASSISTANCE OFFSETS AGAINST THE STUDENTS' ACCOUNTS

Supplemental Information Detail SupplementalInformationDetail

FieldValueIRS element (for citing)
Form And Line ReferencePART I, LINE 2:FormAndLineReferenceDesc
ExplanationFINANCIAL AID WAS PROVIDED FOR TUITION AND FEES TO STUDENTS EXHIBITING FINANCIAL NEED, NO OUTSIDE GRANTS WERE PROVIDED. CLARITY FINANCIAL AID, AN INDEPENDENT ORGANIZATION, PROCESSES THE APPLICATIONS FOR FINANCIAL AID. MIDDLESEX SCHOOL DISTRIBUTES THE FUNDS TO THOSE CANDIDATES WHO DISPLAY NEED BASED ON THESE APPLICATIONS, SUPPORTING TAX DOCUMENTS AND AVAILABLE GRANT FUNDS. MIDDLESEX SCHOOL'S TWO MEDIUMS FOR THE SOLICITATION OF APPLICANTS FOR ENROLLMENT TO THE SCHOOL ARE ITS ADMISSIONS BROCHURES AND ITS WEB SITE. MIDDLESEX SCHOOL ADMITS STUDENTS OF ANY RACE, COLOR, NATIONAL AND ETHNIC ORIGIN TO ALL THE RIGHTS, PRIVILEGES, PROGRAMS, AND ACTIVITIES GENERALLY ACCORDED OR MADE AVAILABLE TO STUDENTS AT THE SCHOOL. IT DOES NOT DISCRIMINATE ON THE BASIS OF RACE, COLOR, NATIONAL AND ETHNIC ORIGIN IN ADMINISTRATION OF ITS EDUCATIONAL POLICIES, ADMISSIONS POLICIES, SCHOLARSHIP AND LOAN PROGRAMS, AND ATHLETIC AND OTHER SCHOOL- ADMINISTERED PROGRAMS. THE SCHOOL ALSO GIVES TUITION REMISSION TO FACULTY CHILDREN WHO ATTEND MIDDLESEX SCHOOL. THE AMOUNT OF ANY QUALIFIED TUITION REDUCTION FOR AN EMPLOYEE OF AN EDUCATIONAL INSTITUTION IS EXCLUDABLE FROM GROSS INCOME UNDER CODE SECTION 117. IN ORDER TO QUALIFY FOR THE EXCLUSION, THE TUITION REDUCTION MUST BE PROVIDED TO AN EMPLOYEE OF A QUALIFIED EDUCATIONAL ORGANIZATION. ALSO, THE TUITION REDUCTION MUST BE FOR EDUCATION AT THE ELEMENTARY, SECONDARY, OR UNDERGRADUATE LEVELS, EITHER AT THE EMPLOYER EDUCATIONAL INSTITUTION OR AT ANOTHER EDUCATIONAL INSTITUTION.ExplanationTxt

Schedule J IRS990ScheduleJ

FieldValueIRS element (for citing)
Housing Allowance Or ResidenceYes (X)HousingAllowanceOrResidenceInd
Written Policy Ref T And E ExpnssYes (1)WrittenPolicyRefTAndEExpnssInd
Substantiation Required0SubstantiationRequiredInd
Compensation CommitteeYes (X)CompensationCommitteeInd
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 PaymentsYes (1)AnyNonFixedPaymentsInd
Initial Contract Exception0InitialContractExceptionInd

Rltd Org Officer Trst Key Empl RltdOrgOfficerTrstKeyEmplGrp (10 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
ELIZABETH SPEERS
HEAD OF SCHOOL$604,173$0$90,000$0$9,437$0$56,423$0$76,116$0$836,149$0$0$0
KARLYN MCNALL
ASSOCIATE HEAD OF SCHOOL$317,455$0$85,000$0$129$0$50,250$0$65,185$0$518,019$0$0$0
THERESE CUNNINGHAM
CFO$290,536$0$10,000$0$69$0$30,750$0$64,604$0$395,959$0$0$0
GEORGE NOBLE
CHIEF ADVANCEMENT OFFICER$208,208$0$10,000$0$69$0$21,300$0$97,242$0$336,819$0$0$0
HEATHER PARKER
CHIEF ADVANCEMENT OFFICER$209,800$0$10,000$0$198$0$21,300$0$3,251$0$244,549$0$0$0
MARC CARTER
CHIEF INNOVATION OFFICER$149,324$0$10,000$0$129$0$16,250$0$60,901$0$236,604$0$0$0
KURTIS LACROIX
DIRECTOR OF PROJECTS & SAFETY$162,689$0$15,000$0$289$0$17,510$0$40,050$0$235,538$0$0$0
DOUGLAS PRICE
DEAN OF ADMISSIONS & FINANCIAL AID$160,911$0$0$0$20,198$0$17,650$0$35,929$0$234,688$0$0$0
MATTHEW DEGREEFF DEAN OF
COLLEGE COUNS. & STUDENT ENRICHMENT$135,414$0$0$0$129$0$15,300$0$57,226$0$208,069$0$0$0
JOFFREY BREMOND
CONTROLLER$142,730$0$2,000$0$27$0$14,658$0$16,655$0$176,070$0$0$0

Supplemental Information Detail SupplementalInformationDetail (3 entries)

Form And Line ReferenceFormAndLineReferenceDescExplanationExplanationTxt
PART I, LINE 1ASINCE THE SCHOOL IS A BOARDING SCHOOL, THE MAJORITY OF THE FACULTY ARE REQUIRED TO LIVE ON CAMPUS FOR THE PURPOSE OF SUPERVISING THE STUDENTS. THE ESTIMATED VALUE OF THIS BENEFIT WAS $20,000 DURING THE YEAR WHICH IS INCLUDED IN THE ESTIMATE OF OTHER COMPENSATION REPORTED IN THE FORM 990, PART VII, COLUMN F AND NONTAXABLE BENEFITS REPORTED IN PART II, COLUMN D OF SCHEDULE J. THE HEAD OF SCHOOL'S RESIDENCE HAS A COMBINATION OF PUBLIC AND PRIVATE SPACE. THE ESTIMATED VALUE REFLECTS THE PRIVATE PORTION OF THE RESIDENCE.
PART I, LINE 1BTHE SCHOOL HAS A WRITTEN POLICY IN REGARDS TO THE ALLOCATION OF FACULTY MEMBERS TO AVAILABLE ON CAMPUS HOUSING AS PART OF THE FACULTY HANDBOOK. WHILE THE SCHOOL WOULD LIKE TO HOUSE ALL MEMBERS OF THE FACULTY ON CAMPUS, THE NUMBER OF FACULTY MEMBERS EXCEED THE NUMBER OF AVAILABLE HOUSING UNITS. UNITS ARE ALLOCATED BASED ON AVAILABILITY AND FIT (DORM RESPONSIBILITIES COMPARED WITH FACULTY RESPONSIBILITIES). THE ESTIMATED NON TAXABLE VALUE FOR THIS ON-CAMPUS HOUSING IS INCLUDED IN PART VII FOR THE HEAD OF SCHOOL, ASSOCIATE HEAD OF SCHOOL, CHIEF FINANCIAL OFFICER, DEAN OF COLLEGE COUNSELING & STUDENT ENRICHMENT, CHIEF INNOVATION OFFICER. IN SOME INSTANCES WHERE ON-CAMPUS HOUSING IS NOT AVAILABLE, TAXABLE STIPENDS ARE ADDED TO FACULTY MEMBER CONTRACTS AND ARE REPORTED IN PART VII, COLUMN (D) UNDER REPORTABLE COMPENSATION AND IN SCHEDULE J, COLUMN (B)(III). DEAN OF ADMISSIONS & FINANCIAL AID HAVE RECEIVED SUCH TAXABLE STIPENDS.
PART I, LINE 7ALL BONUSES ARE PERFORMANCE-BASED AND APPROVED BY THE BOARD UPON THEIR ANNUAL REVIEW.

Schedule K IRS990ScheduleK

Tax Exempt Bonds Issues TaxExemptBondsIssuesGrp (3 entries)

Bond ReferenceBondReferenceCdBond Issuer EINBondIssuerEINCUSIPCUSIPNumBond IssuedBondIssuedDtIssue PriceIssuePriceAmtPurposePurposeDescDefeasedDefeasedIndOn Behalf Of IssuerOnBehalfOfIssuerIndPool FinancingPoolFinancingInd
MASSACHUSETTS DEVELOPMENT FINANCE AGENCY
A0434318140000000002020-04-01$17,500,000REFINANCE OUTSTANDING SER.000
MASSACHUSETTS DEVELOPMENT FINANCE AGENCY
B04343181457585BBP22024-09-10$29,997,984CONSTRUCTION OF FIELD HOUSE000
MASSACHUSETTS DEVELOPMENT FINANCE AGENCY
C04343181457585BBQ02024-09-10$16,997,627CONSTRUCTION OF FIELD HOUSE000

Tax Exempt Bonds Proceeds TaxExemptBondsProceedsGrp (3 entries)

Bond ReferenceBondReferenceCdTotal ProceedsTotalProceedsAmtOther Spent ProceedsOtherSpentProceedsAmtSubstantial CompletionSubstantialCompletionYrRefunding Tax Exempt BondsRefundingTaxExemptBondsIndRefunding Taxable BondsRefundingTaxableBondsIndFinal Allocation MadeFinalAllocationMadeIndAdequate Books And Rec MaintAdequateBooksAndRecMaintIndIssuance Costs From ProceedsIssuanceCostsFromProceedsAmtCapital ExpendituresCapitalExpendituresAmtUnspentUnspentAmt
A$17,500,000$17,500,0002020Yes (1)0Yes (1)Yes (1)
B$29,997,984000Yes (1)$353,275$8,652,648$20,992,061
C$16,997,627000Yes (1)$200,175$4,902,812$11,894,640

Tax Exempt Bonds Private Bus Use TaxExemptBondsPrivateBusUseGrp (3 entries)

Bond ReferenceBondReferenceCdOwning Bond Financed PropertyOwningBondFinancedPropertyIndAny Lease ArrangementsAnyLeaseArrangementsIndMgmt Contract Bond Fincd PropMgmtContractBondFincdPropIndAny Research AgreementsAnyResearchAgreementsIndPrivate Bus Use By OthersPrivateBusUseByOthersPctPrivate Bus Concerning UBIPrivateBusConcerningUBIPctTotal Private Business UseTotalPrivateBusinessUsePctBond Iss Meet Prvt Sec Pymt TestBondIssMeetPrvtSecPymtTestIndChange In Use Bond Financed PropChangeInUseBondFinancedPropIndProcs Nonqualified Bond RemdtdProcsNonqualifiedBondRemdtdInd
A00000.000000.002400.0024000Yes (1)
B00000.000000.000000.0000000Yes (1)
C00000.000000.000000.0000000Yes (1)

Tax Exempt Bonds Arbitrage TaxExemptBondsArbitrageGrp (3 entries)

Bond ReferenceBondReferenceCdForm8038 T FiledForm8038TFiledIndRebate Not Due YetRebateNotDueYetIndException To RebateExceptionToRebateIndNo Rebate DueNoRebateDueIndVariable Rate IssueVariableRateIssueIndHedge Identified In Bks And RecHedgeIdentifiedInBksAndRecIndGross Proceeds Invested In GICGrossProceedsInvestedInGICIndGross Proceeds InvestedGrossProceedsInvestedIndWritten Proc To Monitor ReqsWrittenProcToMonitorReqsInd
A000Yes (1)0000Yes (1)
B000Yes (1)0000Yes (1)
C000Yes (1)0000Yes (1)

Procedures Corrective Action ProceduresCorrectiveActionGrp (3 entries)

Bond ReferenceBondReferenceCdProcedures Corrective ActionProceduresCorrectiveActionInd
AYes (1)
BYes (1)
CYes (1)

Supplemental Information Detail SupplementalInformationDetail

FieldValueIRS element (for citing)
Form And Line ReferenceDATE REBATE COMPUTATION PERFORMEDFormAndLineReferenceDesc
ExplanationISSUER NAME: MASSACHUSETTS DEVELOPMENT FINANCE AGENCY DATE THE REBATE COMPUTATION WAS PERFORMED: 04/01/2025ExplanationTxt

Schedule M IRS990ScheduleM

Securities Publicly Traded SecuritiesPubliclyTradedGrp

FieldValueIRS element (for citing)
Non Cash CheckboxYes (X)NonCashCheckboxInd
Contribution24ContributionCnt
Noncash Contributions Rpt F990$5,906,344NoncashContributionsRptF990Amt
Method Of Determining RevenuesFMVMethodOfDeterminingRevenuesTxt

Other Non Cash Contri Table OtherNonCashContriTableGrp

FieldValueIRS element (for citing)
Non Cash CheckboxYes (X)NonCashCheckboxInd
DescROWING EQUIP.Desc
Contribution1ContributionCnt
Noncash Contributions Rpt F990$907NoncashContributionsRptF990Amt
Method Of Determining RevenuesFMVMethodOfDeterminingRevenuesTxt
FieldValueIRS element (for citing)
Form8283 Received0Form8283ReceivedCnt
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 RECORDED IN PART I, COLUMN B REPRESENTS THE TOTAL NUMBER OF CONTRIBUTORS.ExplanationTxt

Schedule O IRS990ScheduleO

Supplemental Information Detail SupplementalInformationDetail (8 entries)

Form And Line ReferenceFormAndLineReferenceDescExplanationExplanationTxt
FORM 990, PART I, LINE 6:MIDDLESEX SCHOOL HAS VOLUNTEERS WHO PARTICIPATE IN SCHOOL-RELATED COMMITTEES, PLAN CLASS EVENTS, AND ORGANIZE ON-CAMPUS ACTIVITIES. THESE VOLUNTEERS INCLUDED 31 MIDDLESEX PARENTS' COMMITTEE (MPA) MEMBERS, 38 MIDDLESEX ALUMNI ASSOCIATION (MXAA) BOARD MEMBERS, 52 ALUMNI CLASS AGENTS, AND 60 ALUMNI CLASS SECRETARIES AND APPROXIMATELY 30-40 ADDITIONAL PARENTS AND ALUMNI ATTENDED MEETINGS AND VOLUNTEERED THROUGHOUT THE YEAR.
FORM 990, PART III, LINE 1:WE HONOR THE IDEAL, ARTICULATED BY OUR FOUNDING HEADMASTER, OF "FINDING THE PROMISE" IN EVERY STUDENT, AND WE WORK TOGETHER IN AN ATMOSPHERE OF MUTUAL TRUST AND SHARED RESPONSIBILITY TO HELP STUDENTS BRING THEIR TALENTS TO FRUITION AS KNOWLEDGEABLE, CAPABLE, RESPONSIBLE AND MORAL CITIZENS OF THE WORLD. AS A COMMUNITY, WE RESPECT THE INDIVIDUAL INTERESTS, STRENGTHS, AND NEEDS OF EACH STUDENT. WE ALSO VALUE THE RICH DIVERSITY OF BELIEF AND EXPERIENCE EACH OF US BRINGS TO THE SCHOOL. WE EXPECT THAT EACH STUDENT WILL BRING HIS OR HER BEST EFFORTS TO THE SHARED ENDEAVOR OF LEARNING AND THAT THE SCHOOL, THROUGH ITS FACULTY, WILL ENGAGE AND ENCOURAGE EACH STUDENT'S GROWTH, HAPPINESS, AND WELL-BEING. WE ASPIRE FOR ALL MIDDLESEX STUDENTS TO DEVELOP PERSONAL INTEGRITY, INTELLECTUAL VITALITY AND DISCIPLINE, AND RESPECT FOR THEMSELVES AND FOR OTHERS. WE EXPECT EACH STUDENT TO ENGAGE ENERGETICALLY AND COOPERATIVELY IN THE LIFE OF THE SCHOOL, AND WE SEEK TO INSPIRE IN ALL STUDENTS THE DESIRE TO SEEK UNDERSTANDING OF THEMSELVES AND THE LARGER WORLD, BOTH NOW AND IN THEIR FUTURES. OPERATING PRINCIPLES - ACCOMPLISHING THIS MISSION IS THE SHARED RESPONSIBILITY OF THE WHOLE MIDDLESEX COMMUNITY. FOR THAT REASON THE SCHOOL EXPECTS, OF ALL ITS STUDENTS, DEDICATION TO ACADEMIC EXCELLENCE, WILLINGNESS TO WORK ENERGETICALLY AND COOPERATIVELY TOWARD COMMON GOALS IN ALL ACTIVITIES, RESPECT BOTH FOR THEMSELVES AND FOR THE INDIVIDUAL DIFFERENCES OF OTHERS, AND DETERMINATION TO REACH BEYOND MERELY COMFORTABLE LIMITS OF KNOWLEDGE AND EXPERIENCE. IN THE SAME SPIRIT THE SCHOOL PROVIDES STUDENTS WITH SMALL CLASSES AND A STRONG, RICH, VARIED CURRICULUM; WITH A TALENTED, DEDICATED, AND ACCESSIBLE FACULTY, MOST OF WHOM TEACH, COACH, AND LIVE ON CAMPUS WITH THE STUDENTS; WITH OUTSTANDING FACILITIES FOR ACADEMICS, ATHLETICS, AND THE ARTS; AND WITH A SOCIAL COMMUNITY WHOSE MEMBERS REPRESENT DIFFERENT BACKGROUNDS AND INTERESTS. TAKEN TOGETHER, THESE ELEMENTS - SUPPLEMENTED BY ADVISING, COUNSELING, SCHOOL ASSEMBLIES AND SPECIAL PROGRAMS, WEEKLY CHAPEL GATHERINGS, INFORMAL COURSES AND PEER SUPPORT GROUPS: MAKE UP A SECONDARY SCHOOL EXPERIENCE REMARKABLE FOR ITS BREADTH AND DEPTH.
FORM 990, PART VI, SECTION A, LINE 2ROBERT M. BASS AND ANNE T. BASS HAVE A FAMILY RELATIONSHIP.
FORM 990, PART VI, SECTION B, LINE 11BONCE THE DRAFT FORM 990 IS PREPARED, IT IS FIRST REVIEWED BY MIDDLESEX MANAGEMENT, INCLUDING THE DIRECTOR OF FINANCE, CHIEF FINANCIAL & OPERATIONS OFFICER, AND THE HEAD OF SCHOOL. IT IS THEN DISTRIBUTED TO THE AUDIT COMMITTEE FOR THEIR REVIEW. AN AUDIT COMMITTEE MEETING IS THEN SCHEDULED TO DISCUSS THE RETURN, ANY CHANGES IN THE CURRENT YEAR, OR DIFFICULTIES ENCOUNTERED, ETC. AFTER THE AUDIT COMMITTEE REVIEWS AND DISCUSSES THE DRAFT AND PROPOSES CHANGES, IF NEEDED, THEY WILL APPROVE THE FORM 990 AS THEY DISCUSSED. AFTER APPROVAL BY THE AUDIT COMMITTEE, AND PRIOR TO FILING, A COPY OF THE FORM 990 WILL BE DISTRIBUTED TO ALL BOARD MEMBERS ELECTRONICALLY (OR, WHERE EMAIL IS NOT AVAILABLE, A HARD COPY OF THE FORM IS PROVIDED VIA MAIL) PRIOR TO THE ACTUAL FILING OF THE RETURN.
FORM 990, PART VI, SECTION B, LINE 12CCONFLICT OF INTEREST/GOVERNANCE QUESTIONNAIRES ARE DISTRIBUTED ANNUALLY TO ALL CURRENT VOTING BOARD MEMBERS, ALL TRUSTEE EMERITI (NON-VOTING), ALL FORMER TRUSTEES THAT WERE VOTING BOARD MEMBERS WITHIN THE LAST FIVE YEARS, ALL KEY-EMPLOYEES, AND ALL FORMER KEY-EMPLOYEES THAT LEFT EMPLOYMENT WITH THE SCHOOL AT SOME POINT WITHIN THE LAST 5 YEARS. IF FORMS ARE NOT COMPLETED, A SECOND REQUEST IS SENT OUT. ALL FORMS ARE REVIEWED BY THE CHAIR OF OUR TRUSTEE AND GOVERNANCE COMMITTEE AND A SUMMARY IS REPORTED TO THE AUDIT COMMITTEE. IF CONFLICTS EXIST, THE CONFLICTED MEMBER ABSTAINS FROM VOTING ON ANY DECISIONS MADE BY THEIR RESPECTIVE COMMITTEES OR THE BOARD. IT IS DOCUMENTED IN THE MEETING MINUTES WHERE THE VOTE IS CONCERNED.
FORM 990, PART VI, SECTION B, LINE 15AN INDEPENDENT COMMITTEE OF THE BOARD OF TRUSTEES IS CHARGED WITH ANNUALLY EVALUATING THE PRINCIPAL SALARIED OFFICER (HEAD OF SCHOOL). THE CHAIR OF THE BOARD APPOINTS THREE TO FOUR INDIVIDUALS TO SERVE ON THE COMPENSATION COMMITTEE. THE PRACTICE HAS BEEN TO APPOINT THE CHAIR, TREASURER, AND CHAIR/VICE-CHAIR OF THE TRUSTEES AND GOVERNANCE COMMITTEE. THE COMMITTEE IS ADVISED BY OUTSIDE COUNSEL WHO ATTENDS THE MEETINGS, TAKES MINUTES, AND ADVISES THE COMMITTEE MEMBERS OF ANY LEGAL ISSUES OR QUESTIONS THAT ARISE IN THE PROCESS. THE CHAIR OF THE BOARD ASKS ALL TRUSTEES TO COMPLETE EVALUATION FORMS AT THE SPRING BOARD MEETING. THE CHAIR OF THE BOARD ALSO SOLICITS ORAL COMMENTS FROM THE TRUSTEES DURING AN EXECUTIVE SESSION AT THE SPRING BOARD MEETING AS WELL AS CONDUCTS, WITH OTHER MEMBERS OF THE COMPENSATION COMMITTEE, 360 DEGREE INTERVIEWS WITH SENIOR ADMINISTRATORS. IN PREPARATION FOR THE INTERVIEW WITH THE HEAD OF SCHOOL IN JUNE, THE COMPLETED TRUSTEE EVALUATION FORMS ARE SUMMARIZED FOR THE MEMBERS OF THE COMPENSATION COMMITTEE. THE HEAD OF SCHOOL ALSO PREPARES A SUMMARY OF ACCOMPLISHMENT OF THE PRIOR SCHOOL YEAR AND STATEMENT OF GOALS MET FROM THE PREVIOUS REVIEW AND ESTABLISHED FOR THE COMING SCHOOL YEAR. AFTER THE INTERVIEW WITH THE HEAD, THE HEAD IS EXCUSED, AND THE COMMITTEE (NOT INCLUDING ANY MEMBER WHO MAY HAVE A CONFLICT OF INTEREST WITH RESPECT TO THE COMPENSATION ARRANGEMENT BEING REVIEWED) DELIBERATES IN EXECUTIVE SESSION TO DISCUSS THE PERFORMANCE REVIEW AND TO REVIEW A COMPILATION OF COMPENSATION AND BENEFIT DATA ASSEMBLED ON A BLIND BASIS BY THE ASSOCIATION OF BUSINESS OFFICERS OF PREPARATORY SCHOOLS IN ORDER TO ESTABLISH A BASIS FOR ADJUSTING THE HEAD'S COMPENSATION AND BENEFITS FOR THE COMING SCHOOL YEAR. AFTER REACHING A CONCLUSION ON ADJUSTMENTS FOR THE COMPENSATION AND BENEFIT ARRANGEMENTS FOR THE COMING YEAR THAT WOULD REPRESENT COMPENSATION BASED ON THE COMMITTEE'S REVIEW OF THE COMPARABILITY DATA, THE HEAD IS INVITED TO HEAR THE RESULTS. THE DECISIONS ARE RECORDED IN THE MINUTES OF THE COMMITTEE, AND THE CHANGES IN COMPENSATION (IF ANY) ARE MEMORIALIZED IN A LETTER AND WHERE NECESSARY IN AMENDMENTS TO THE EMPLOYMENT CONTRACT. THE RESULTS ARE REPORTED TO THE FULL BOARD IN EXECUTIVE SESSION (WITHOUT THE HEAD PRESENT) AT THE FALL BOARD MEETING. FORM 990, PART VI, SECTION B, LINE 15B: THE COMPENSATION COMMITTEE REVIEWS THE COMPENSATION FOR THE CFO AND CHIEF ADVANCEMENT OFFICERS. THE ANNUAL COMPENSATION PROCESS INVOLVES ATTENTION TO AND AVOIDANCE OF CONFLICTS OF INTEREST, USE OF COMPARABILITY DATA GATHERED AND PRESENTED BY AN OUTSIDE COMPENSATION EXPERT AND CONTEMPORANEOUS DOCUMENTATION OF THE MEETINGS, DELIBERATIONS AND DECISIONS. ALL OTHER INDIVIDUALS' RATES ARE APPROVED BY THE HEAD OF SCHOOL. THESE PROCESSES WERE MOST RECENTLY UNDERTAKEN IN 2024.
FORM 990, PART VI, SECTION C, LINE 19MIDDLESEX SCHOOL PROVIDES GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, FINANCIAL STATEMENTS, AND FORM 990 WITHOUT SCHEDULE B UPON REQUEST FOR THE SAME PERIOD OF DISCLOSURE AS SET FORTH IN SECTION 6104(D).
FORM 990, PART XI, LINE 9:CHANGE IN VALUE OF CHARITABLE REMAINDER TRUSTS 42,015,464.

Schedule R IRS990ScheduleR

Id Related Org Txbl Corp Tr IdRelatedOrgTxblCorpTrGrp (2 entries)

Primary ActivitiesPrimaryActivitiesTxtLegal Domicile StateLegalDomicileStateCdBusiness Name Line1DirectControllingEntityName/BusinessNameLine1TxtEntity TypeEntityTypeTxtControlled OrganizationControlledOrganizationInd
POOLED INCOME FUND (1)
POOLED INCOME FUNDMAMIDDLESEX SCHOOLTYes (1)
CHARITABLE REMAINDER TRUSTS (18)
CHARITABLE REMAINDER TRUSTSMAMIDDLESEX SCHOOLTYes (1)
FieldValueIRS element (for citing)
Receipt Of Int Annts Rnts Rylts0ReceiptOfIntAnntsRntsRyltsInd
Gift Grnt Or Cap Contri To Oth Org0GiftGrntOrCapContriToOthOrgInd
Gift Grnt Cap Contri From Oth Org0GiftGrntCapContriFromOthOrgInd
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