WILLIAMS COLLEGE: Form 990, tax year 2023

View the entire original 990 at ProPublica ↗

Organization: WILLIAMS COLLEGE (EIN 04-2104847)
Tax period: 2023-07-01 to 2024-06-30
Filed: 2025-05-14
IRS object ID: 202501349349312610
Schema version: 2023v6.0
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
Form 990
Schedule A
Schedule B
Schedule C
Schedule D
Schedule E
Schedule F
Schedule I
Schedule J
Schedule K
Schedule K
Schedule L
Schedule M
Schedule O
Schedule R

Return header ReturnHeader

Field	Value	IRS element (for citing)
Return	2025-05-14T17:37:27+00:00	ReturnTs
Tax Period End	2024-06-30	TaxPeriodEndDt

Preparer Firm PreparerFirmGrp

Field	Value	IRS element (for citing)
Preparer Firm EIN	350921680	PreparerFirmEIN

Preparer Firm Name PreparerFirmName

Field	Value	IRS element (for citing)
Business Name Line1	CROWE LLP	BusinessNameLine1Txt

Preparer US Address PreparerUSAddress

Field	Value	IRS element (for citing)
Address Line1	4801 Olympia Park Plaza Suite 4000	AddressLine1Txt
City	Louisville	CityNm
State Abbreviation	KY	StateAbbreviationCd
ZIP	402412098	ZIPCd

Field	Value	IRS element (for citing)
Return Type	990	ReturnTypeCd
Tax Period Begin	2023-07-01	TaxPeriodBeginDt

Filer Filer

Field	Value	IRS element (for citing)
EIN	042104847	EIN

Business Name BusinessName

Field	Value	IRS element (for citing)
Business Name Line1	Williams College	BusinessNameLine1Txt

Field	Value	IRS element (for citing)
Business Name Control	WILL	BusinessNameControlTxt
Phone	4135974412	PhoneNum

US Address USAddress

Field	Value	IRS element (for citing)
Address Line1	HOPKINS HALL PO BOX 67	AddressLine1Txt
City	WILLIAMSTOWN	CityNm
State Abbreviation	MA	StateAbbreviationCd
ZIP	01267	ZIPCd

Business Officer BusinessOfficerGrp

Field	Value	IRS element (for citing)
Person	MICHAEL WAGNER	PersonNm
Person Title	VP FOR FIN & OPERATIONS & TREAS	PersonTitleTxt
Signature	2025-05-14	SignatureDt
Discuss With Paid Preparer	Yes (true)	DiscussWithPaidPreparerInd

Field	Value	IRS element (for citing)
IRS Responsible Prty Info Curr	Yes (true)	IRSResponsiblePrtyInfoCurrInd

Preparer Person PreparerPersonGrp

Field	Value	IRS element (for citing)
Preparer Person	Rachel Spurlock	PreparerPersonNm
PTIN	P00520729	PTIN
Phone	5023263996	PhoneNum
Preparation	2025-05-14	PreparationDt

Field	Value	IRS element (for citing)
Tax	2023	TaxYr
Build TS	2025-03-06 01:10:19Z	BuildTS

Form 990 IRS990

Principal Ofcr Business Name PrincipalOfcrBusinessName

Field	Value	IRS element (for citing)
Business Name Line1	MAUD S MANDEL	BusinessNameLine1Txt

US Address USAddress

Field	Value	IRS element (for citing)
Address Line1	HOPKINS HALL PO BOX 67	AddressLine1Txt
City	WILLIAMSTOWN	CityNm
State Abbreviation	MA	StateAbbreviationCd
ZIP	01267	ZIPCd

Field	Value	IRS element (for citing)
Gross Receipts	$779,503,470	GrossReceiptsAmt
Group Return For Affiliates	false	GroupReturnForAffiliatesInd
Organization501c3	Yes (X)	Organization501c3Ind
Website Address	WWW.WILLIAMS.EDU	WebsiteAddressTxt
Type Of Organization Corp	Yes (X)	TypeOfOrganizationCorpInd
Formation	1793	FormationYr
Legal Domicile State	MA	LegalDomicileStateCd
Activity Or Mission	Williams College strives to achieve educational excellence by fostering a community of learning in collaboration with students, faculty, staff, devoted alumni and parents.	ActivityOrMissionDesc
Voting Members Governing Body	24	VotingMembersGoverningBodyCnt
Voting Members Independent	23	VotingMembersIndependentCnt
Total Employee	3544	TotalEmployeeCnt
Total Volunteers	6770	TotalVolunteersCnt
Total Gross UBI	$27,270,649	TotalGrossUBIAmt
Net Unrelated Bus Txbl Incm	$3,193,845	NetUnrelatedBusTxblIncmAmt
PY Contributions Grants	$75,476,741	PYContributionsGrantsAmt
CY Contributions Grants	$87,694,599	CYContributionsGrantsAmt
PY Program Service Revenue	$173,728,938	PYProgramServiceRevenueAmt
CY Program Service Revenue	$176,518,559	CYProgramServiceRevenueAmt
PY Investment Income	$175,831,356	PYInvestmentIncomeAmt
CY Investment Income	$184,172,321	CYInvestmentIncomeAmt
PY Other Revenue	-$941,170	PYOtherRevenueAmt
CY Other Revenue	-$492,911	CYOtherRevenueAmt
PY Total Revenue	$424,095,865	PYTotalRevenueAmt
CY Total Revenue	$447,892,568	CYTotalRevenueAmt
PY Grants And Similar Paid	$65,726,296	PYGrantsAndSimilarPaidAmt
CY Grants And Similar Paid	$73,317,642	CYGrantsAndSimilarPaidAmt
CY Benefits Paid To Members	$0	CYBenefitsPaidToMembersAmt
PY Salaries Comp Emp Bnft Paid	$162,616,754	PYSalariesCompEmpBnftPaidAmt
CY Salaries Comp Emp Bnft Paid	$171,686,961	CYSalariesCompEmpBnftPaidAmt
PY Total Prof Fndrsng Expns	$0	PYTotalProfFndrsngExpnsAmt
CY Total Prof Fndrsng Expns	$0	CYTotalProfFndrsngExpnsAmt
CY Total Fundraising Expense	$10,449,898	CYTotalFundraisingExpenseAmt
PY Other Expenses	$128,698,940	PYOtherExpensesAmt
CY Other Expenses	$121,084,994	CYOtherExpensesAmt
PY Total Expenses	$357,041,990	PYTotalExpensesAmt
CY Total Expenses	$366,089,597	CYTotalExpensesAmt
PY Revenues Less Expenses	$67,053,875	PYRevenuesLessExpensesAmt
CY Revenues Less Expenses	$81,802,971	CYRevenuesLessExpensesAmt
Total Assets BOY	$4,819,845,872	TotalAssetsBOYAmt
Total Assets EOY	$5,075,834,072	TotalAssetsEOYAmt
Total Liabilities BOY	$946,525,334	TotalLiabilitiesBOYAmt
Total Liabilities EOY	$967,033,419	TotalLiabilitiesEOYAmt
Net Assets Or Fund Balances BOY	$3,873,320,538	NetAssetsOrFundBalancesBOYAmt
Net Assets Or Fund Balances EOY	$4,108,800,653	NetAssetsOrFundBalancesEOYAmt
Mission	SEE SCHEDULE O.	MissionDesc
Significant New Program Srvc	false	SignificantNewProgramSrvcInd
Significant Change	false	SignificantChangeInd
Expense	$325,018,349	ExpenseAmt
Grant	$73,317,642	GrantAmt
Revenue	$172,809,941	RevenueAmt
Desc	WILLIAMS IS AN INDEPENDENT LIBERAL ARTS COLLEGE FOR APPROXIMATELY 2,100 FULL-TIME UNDERGRADUATE AND 50 GRADUATE STUDENTS WHO COME FROM ALL OF THE 50 STATES and countries from around the world. THE WILLIAMS CURRICULUM OFFERS STUDY IN THE HUMANITIES, THE SOCIAL SCIENCES AND THE NATURAL SCIENCES AND COMBINES A BROAD EDUCATION WITH KNOWLEDGE OF ONE FIELD IN DEPTH. THE COLLEGE OFFERS THE BACHELOR OF ARTS DEGREE AT THE UNDERGRADUATE LEVEL. IN ADDITION, the college offers MASTER OF ARTS PROGRAMS IN POLICY ECONOMICS AND HISTORY OF ART.	Desc
Total Program Service Expenses	$325,018,349	TotalProgramServiceExpensesAmt
Described In Section501c3	Yes (true)	DescribedInSection501c3Ind
Schedule B Required	Yes (true)	ScheduleBRequiredInd
Political Campaign Acty	false	PoliticalCampaignActyInd
Lobbying Activities	Yes (true)	LobbyingActivitiesInd
Donor Advised Fund	Yes (true)	DonorAdvisedFundInd
Conservation Easements	false	ConservationEasementsInd
Collections Of Art	Yes (true)	CollectionsOfArtInd
Credit Counseling	Yes (true)	CreditCounselingInd
Donor Rstr Or Quasi Endowments	Yes (true)	DonorRstrOrQuasiEndowmentsInd
Report Land Building Equipment	Yes (true)	ReportLandBuildingEquipmentInd
Report Investments Other Sec	Yes (true)	ReportInvestmentsOtherSecInd
Report Program Related Invst	false	ReportProgramRelatedInvstInd
Report Other Assets	false	ReportOtherAssetsInd
Report Other Liabilities	Yes (true)	ReportOtherLiabilitiesInd
Include FIN48 Footnote	Yes (true)	IncludeFIN48FootnoteInd
Independent Audit Fincl Stmt	false	IndependentAuditFinclStmtInd
Consolidated Audit Fincl Stmt	Yes (true)	ConsolidatedAuditFinclStmtInd
School Operating	Yes (true)	SchoolOperatingInd
Foreign Office	Yes (true)	ForeignOfficeInd
Foreign Activities	Yes (true)	ForeignActivitiesInd
More Than5000 K To Org	false	MoreThan5000KToOrgInd
More Than5000 K To Individuals	Yes (true)	MoreThan5000KToIndividualsInd
Professional Fundraising	false	ProfessionalFundraisingInd
Fundraising Activities	false	FundraisingActivitiesInd
Gaming Activities	false	GamingActivitiesInd
Operate Hospital	false	OperateHospitalInd
Grants To Organizations	Yes (true)	GrantsToOrganizationsInd
Grants To Individuals	Yes (true)	GrantsToIndividualsInd
Schedule J Required	Yes (true)	ScheduleJRequiredInd
Tax Exempt Bonds	Yes (true)	TaxExemptBondsInd
Invest Tax Exempt Bonds	false	InvestTaxExemptBondsInd
Escrow Account	false	EscrowAccountInd
On Behalf Of Issuer	false	OnBehalfOfIssuerInd
Engaged In Excess Benefit Trans	false	EngagedInExcessBenefitTransInd
PY Excess Benefit Trans	false	PYExcessBenefitTransInd
Loan Outstanding	Yes (true)	LoanOutstandingInd
Grant To Related Person	Yes (true)	GrantToRelatedPersonInd
Business Rln With Org Mem	false	BusinessRlnWithOrgMemInd
Business Rln With Fam Mem	Yes (true)	BusinessRlnWithFamMemInd
Business Rln With35 Ctrl Ent	false	BusinessRlnWith35CtrlEntInd
Deductible Non Cash Contri	Yes (true)	DeductibleNonCashContriInd
Deductible Art Contribution	Yes (true)	DeductibleArtContributionInd
Terminate Operations	false	TerminateOperationsInd
Partial Liquidation	false	PartialLiquidationInd
Disregarded Entity	Yes (true)	DisregardedEntityInd
Related Entity	Yes (true)	RelatedEntityInd
Related Organization Ctrl Ent	Yes (true)	RelatedOrganizationCtrlEntInd
Transaction With Control Ent	Yes (true)	TransactionWithControlEntInd
Trnsfr Exmpt Non Chrtbl Rltd Org	false	TrnsfrExmptNonChrtblRltdOrgInd
Activities Conducted Prtshp	false	ActivitiesConductedPrtshpInd
Schedule O Required	Yes (true)	ScheduleORequiredInd
Info In Schedule O Part V	Yes (X)	InfoInScheduleOPartVInd
IRP Document	3415	IRPDocumentCnt
IRP Document W2 G	0	IRPDocumentW2GCnt
Backup Wthld Compliance	Yes (true)	BackupWthldComplianceInd
Employee	3544	EmployeeCnt
Employment Tax Returns Filed	Yes (true)	EmploymentTaxReturnsFiledInd
Unrelated Bus Incm Over Limit	Yes (true)	UnrelatedBusIncmOverLimitInd
Form990 T Filed	Yes (true)	Form990TFiledInd
Foreign Financial Account	Yes (true)	ForeignFinancialAccountInd
Foreign Country	UK	ForeignCountryCd
Prohibited Tax Shelter Trans	false	ProhibitedTaxShelterTransInd
Taxable Party Notification	false	TaxablePartyNotificationInd
Nondeductible Contributions	false	NondeductibleContributionsInd
Quid Pro Quo Contributions	false	QuidProQuoContributionsInd
Form8282 Property Disposed Of	false	Form8282PropertyDisposedOfInd
Rcv Fnds To Pay Prsnl Bnft Cntrct	false	RcvFndsToPayPrsnlBnftCntrctInd
Pay Premiums Prsnl Bnft Cntrct	false	PayPremiumsPrsnlBnftCntrctInd
DAF Excess Business Holdings	false	DAFExcessBusinessHoldingsInd
Taxable Distributions	false	TaxableDistributionsInd
Distribution To Donor	false	DistributionToDonorInd
Indoor Tanning Services	false	IndoorTanningServicesInd
Subj To Tax Rmnrtn Ex Prcht Pymt	Yes (true)	SubjToTaxRmnrtnExPrchtPymtInd
Subject To Excs Tax Net Invst Inc	Yes (true)	SubjectToExcsTaxNetInvstIncInd
Info In Schedule O Part VI	Yes (X)	InfoInScheduleOPartVIInd
Governing Body Voting Members	24	GoverningBodyVotingMembersCnt
Independent Voting Member	23	IndependentVotingMemberCnt
Family Or Business Rln	Yes (true)	FamilyOrBusinessRlnInd
Delegation Of Mgmt Duties	false	DelegationOfMgmtDutiesInd
Change To Org Documents	false	ChangeToOrgDocumentsInd
Material Diversion Or Misuse	false	MaterialDiversionOrMisuseInd
Members Or Stockholders	false	MembersOrStockholdersInd
Election Of Board Members	false	ElectionOfBoardMembersInd
Decisions Subject To Approva	false	DecisionsSubjectToApprovaInd
Minutes Of Governing Body	Yes (true)	MinutesOfGoverningBodyInd
Minutes Of Committees	Yes (true)	MinutesOfCommitteesInd
Officer Mailing Address	false	OfficerMailingAddressInd
Local Chapters	false	LocalChaptersInd
Form990 Provided To Gvrn Body	Yes (true)	Form990ProvidedToGvrnBodyInd
Conflict Of Interest Policy	Yes (true)	ConflictOfInterestPolicyInd
Annual Disclosure Covered Prsn	Yes (true)	AnnualDisclosureCoveredPrsnInd
Regular Monitoring Enfrc	Yes (true)	RegularMonitoringEnfrcInd
Whistleblower Policy	Yes (true)	WhistleblowerPolicyInd
Document Retention Policy	Yes (true)	DocumentRetentionPolicyInd
Compensation Process CEO	Yes (true)	CompensationProcessCEOInd
Compensation Process Other	Yes (true)	CompensationProcessOtherInd
Investment In Joint Venture	false	InvestmentInJointVentureInd
States Where Copy Of Return Is Fld	CA	StatesWhereCopyOfReturnIsFldCd
States Where Copy Of Return Is Fld	MA	StatesWhereCopyOfReturnIsFldCd
Own Website	Yes (X)	OwnWebsiteInd
Upon Request	Yes (X)	UponRequestInd
Other	Yes (X)	OtherInd

Books In Care Of Detail BooksInCareOfDetail

Business Name BusinessName

Field	Value	IRS element (for citing)
Business Name Line1	Valerie Myers	BusinessNameLine1Txt

Field	Value	IRS element (for citing)
Phone	4135974204	PhoneNum

US Address USAddress

Field	Value	IRS element (for citing)
Address Line1	PO BOX 67	AddressLine1Txt
City	WILLIAMSTOWN	CityNm
State Abbreviation	MA	StateAbbreviationCd
ZIP	01267	ZIPCd

Form990 Part VII Section A Form990PartVIISectionAGrp (45 entries)

TitleTitleTxt	Average Hours Per WeekAverageHoursPerWeekRt	Average Hours Per Week Rltd OrgAverageHoursPerWeekRltdOrgRt	Individual Trustee Or DirectorIndividualTrusteeOrDirectorInd	OfficerOfficerInd	Reportable Comp From OrgReportableCompFromOrgAmt	Reportable Comp From Rltd OrgReportableCompFromRltdOrgAmt	Other CompensationOtherCompensationAmt	Highest Compensated EmployeeHighestCompensatedEmployeeInd	Former Ofcr Director TrusteeFormerOfcrDirectorTrusteeInd
MAUD MANDEL
PRESIDENT	40.0	1.0	Yes (X)	Yes (X)	$674,852	$0	$216,911
ELIZABETH ANDERSEN
TRUSTEE	4.0		Yes (X)		$0	$0	$0
ELIZABETH ROBINSON
TRUSTEE/CHAIR	6.0		Yes (X)		$0	$0	$0
ETHAN LASSER
TRUSTEE	4.0		Yes (X)		$0	$0	$0
GEORGE CREPPY
TRUSTEE	4.0		Yes (X)		$0	$0	$0
GREGORY WOODS
TRUSTEE	4.0		Yes (X)		$0	$0	$0
GRETCHEN HOWARD
TRUSTEE	4.0		Yes (X)		$0	$0	$0
JAN VAN ECK
TRUSTEE	4.0		Yes (X)		$0	$0	$0
JEFFREY DELANEY
TRUSTEE	4.0		Yes (X)		$0	$0	$0
JEFFREY HARLESTON
TRUSTEE	4.0		Yes (X)		$0	$0	$0
JEFFREY RHODES
TRUSTEE	4.0		Yes (X)		$0	$0	$0
JONATHAN SOKOLOFF
TRUSTEE	4.0		Yes (X)		$0	$0	$0
LEILA JERE
TRUSTEE	4.0		Yes (X)		$0	$0	$0
MARK TERCEK
TRUSTEE	4.0		Yes (X)		$0	$0	$0
MARTHA HOOPES
TRUSTEE	4.0		Yes (X)		$0	$0	$0
MARTHA WILLIAMSON
TRUSTEE	4.0		Yes (X)		$0	$0	$0
MATTHEW HARRIS
TRUSTEE	4.0		Yes (X)		$0	$0	$0
MICHELE JOHNSON ROGERS
TRUSTEE	4.0		Yes (X)		$0	$0	$0
NATHAN SLEEPER
TRUSTEE	4.0		Yes (X)		$0	$0	$0
NORIKO HONDA CHEN
TRUSTEE	4.0		Yes (X)		$0	$0	$0
SARAH MOLLMAN UNDERHILL
TRUSTEE	4.0		Yes (X)		$0	$0	$0
VALERIE DIFEBO
TRUSTEE	4.0		Yes (X)		$0	$0	$0
VIDISHA PATEL
TRUSTEE	4.0		Yes (X)		$0	$0	$0
WILLIAM FOOTE
TRUSTEE	4.0		Yes (X)		$0	$0	$0
ABIGAIL WATTLEY
CHIEF INVESTMENT OFFICER (EFFECTIVE JULY 1, 2023)	40.0			Yes (X)	$565,011	$0	$37,586
EIKO SINIAWER
PROVOST	40.0			Yes (X)	$292,367	$0	$57,547
JAMES REISCHE
VP OF COMMUNICATIONS	40.0			Yes (X)	$255,635	$0	$65,205
KELI GAIL
SECRETARY OF THE COLLEGE	40.0			Yes (X)	$264,280	$0	$52,299
LARA SHORE-SHEPPARD
DEAN OF THE FACULTY (EFFECTIVE JULY 1, 2023)	40.0			Yes (X)	$236,508	$0	$63,997
LETICIA SMITH-EVANS HAYNES
VP FOR INSTITUTIONAL DIVERSITY, EQUITY, AND INCLUSION	40.0			Yes (X)	$255,361	$0	$67,957
MARGARET LONG
DEAN OF THE COLLEGE	40.0			Yes (X)	$290,857	$0	$99,510
MEGAN MOREY
VP OF COLLEGE RELATIONS	40.0			Yes (X)	$407,297	$0	$119,407
MICHAEL WAGNER
VP FOR FINANCE & OPERATIONS, TREASURER	40.0			Yes (X)	$557,196	$0	$75,803
BRADFORD WAKEMAN
MANAGING DIR / COO, INV OFFICE	40.0				$474,042	$0	$69,918	Yes (X)
JAMES ART
GENERAL COUNSEL	40.0				$270,339	$0	$129,849	Yes (X)
JOHN KLEINER
PROFESSOR OF ENGLISH	40.0				$280,648	$0	$36,781	Yes (X)
KENNETH KUTTNER
PROFESSOR OF ECONOMICS	40.0				$265,649	$0	$79,597	Yes (X)
PAMELA FRANKS
DIRECTOR OF THE WILLIAMS COLLEGE MUSEUM OF ART	40.0				$269,371	$0	$77,591	Yes (X)
COLLETTE CHILTON
CHIEF INVESTMENT OFFICER (THROUGH JUNE 30, 2023)	40.0				$916,166	$0	$126,739		Yes (X)
DAVID LOVE
FORMER PROVOST, PROF OF ECONOMICS	40.0				$231,872	$0	$58,018		Yes (X)
DENISE BUELL
FORMER DEAN OF THE FACULTY, PROF OF RELIGION	40.0				$174,951	$0	$55,778		Yes (X)
LEE PARK
FORMER DEAN OF THE FACULTY, PROF OF CHEMISTRY	40.0				$185,399	$0	$46,256		Yes (X)
MARLENE SANDSTROM
FORMER DEAN OF COLLEGE, PROF OF PSYCH	40.0				$224,335	$0	$57,234		Yes (X)
PROTIK M MAJUMDER
FORMER PRESIDENT, PROF OF PHYSICS	40.0				$180,217	$0	$59,254		Yes (X)
SAFA ZAKI
FORMER DEAN OF THE FACULTY, PROF OF PSYCHOLOGY	40.0				$152,232	$0	$34,148		Yes (X)

Field	Value	IRS element (for citing)
Total Reportable Comp From Org	$7,424,585	TotalReportableCompFromOrgAmt
Tot Reportable Comp Rltd Org	$0	TotReportableCompRltdOrgAmt
Total Other Compensation	$1,687,385	TotalOtherCompensationAmt
Indiv Rcvd Greater Than100 K	370	IndivRcvdGreaterThan100KCnt
Former Ofcr Employees Listed	Yes (true)	FormerOfcrEmployeesListedInd
Total Comp Greater Than150 K	Yes (true)	TotalCompGreaterThan150KInd
Compensation From Other Srcs	false	CompensationFromOtherSrcsInd

Contractor Compensation ContractorCompensationGrp (5 entries)

Address Line1ContractorAddress/USAddress/AddressLine1Txt	CityContractorAddress/USAddress/CityNm	State AbbreviationContractorAddress/USAddress/StateAbbreviationCd	ZIPContractorAddress/USAddress/ZIPCd	ServicesServicesDesc	CompensationCompensationAmt	Address Line2ContractorAddress/USAddress/AddressLine2Txt
Perry Dean Rogers & Partners Architects
177 Milk Street	Boston	MA	02109	Architect	$3,584,049
Huron Consulting Services LLC
550 W Van Buren Street	Chicago	IL	60607	Consulting	$2,033,103	Suite 1700
Consigli Construction Co Inc
72 Summer Street	Milford	MA	01757	Construction	$596,380
Leers Weinzapfel Assoc Architects Inc
75 Kneeland Street	Boston	MA	02111	Architect	$558,604	3rd Floor
Otis Elevator Company
1 Carrier Place	Farmington	CT	06032	Maintenance	$540,077

Field	Value	IRS element (for citing)
Cntrct Rcvd Greater Than100 K	45	CntrctRcvdGreaterThan100KCnt
Government Grants	$3,152,251	GovernmentGrantsAmt
All Other Contributions	$84,542,348	AllOtherContributionsAmt
Noncash Contributions	$11,502,915	NoncashContributionsAmt
Total Contributions	$87,694,599	TotalContributionsAmt

Program Service Revenue ProgramServiceRevenueGrp (2 entries)

DescDesc	BusinessBusinessCd	Total Revenue ColumnTotalRevenueColumnAmt	Related Or Exempt Func IncomeRelatedOrExemptFuncIncomeAmt	Unrelated Business RevenueUnrelatedBusinessRevenueAmt
TUITION, FEES, ROOM AND BOARD	900099	$166,086,000	$166,086,000
AUXILIARY REVENUE	721000	$10,432,559	$6,723,941	$3,708,618

Total Oth Program Service Rev TotalOthProgramServiceRevGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$0	TotalRevenueColumnAmt
Related Or Exempt Func Income	$0	RelatedOrExemptFuncIncomeAmt
Unrelated Business Revenue	$0	UnrelatedBusinessRevenueAmt
Exclusion	$0	ExclusionAmt

Field	Value	IRS element (for citing)
Total Program Service Revenue	$176,518,559	TotalProgramServiceRevenueAmt

Investment Income InvestmentIncomeGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$4,124,432	TotalRevenueColumnAmt
Exclusion	$4,124,432	ExclusionAmt

Gross Rents GrossRentsGrp

Field	Value	IRS element (for citing)
Real	$2,575,302	RealAmt

Less Rental Expenses LessRentalExpensesGrp

Field	Value	IRS element (for citing)
Real	$3,068,213	RealAmt

Rental Income Or Loss RentalIncomeOrLossGrp

Field	Value	IRS element (for citing)
Real	-$492,911	RealAmt
Personal	$0	PersonalAmt

Net Rental Income Or Loss NetRentalIncomeOrLossGrp

Field	Value	IRS element (for citing)
Total Revenue Column	-$492,911	TotalRevenueColumnAmt
Exclusion	-$492,911	ExclusionAmt

Gross Amount Sales Assets GrossAmountSalesAssetsGrp

Field	Value	IRS element (for citing)
Securities	$508,023,030	SecuritiesAmt
Other	$567,548	OtherAmt

Less Cost Oth Basis Sales Expnss LessCostOthBasisSalesExpnssGrp

Field	Value	IRS element (for citing)
Securities	$328,005,696	SecuritiesAmt
Other	$536,993	OtherAmt

Gain Or Loss GainOrLossGrp

Field	Value	IRS element (for citing)
Securities	$180,017,334	SecuritiesAmt
Other	$30,555	OtherAmt

Net Gain Or Loss Investments NetGainOrLossInvestmentsGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$180,047,889	TotalRevenueColumnAmt
Unrelated Business Revenue	$23,562,031	UnrelatedBusinessRevenueAmt
Exclusion	$156,485,858	ExclusionAmt

Miscellaneous Revenue MiscellaneousRevenueGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$0	TotalRevenueColumnAmt
Related Or Exempt Func Income	$0	RelatedOrExemptFuncIncomeAmt
Unrelated Business Revenue	$0	UnrelatedBusinessRevenueAmt
Exclusion	$0	ExclusionAmt

Field	Value	IRS element (for citing)
Other Revenue Total	$0	OtherRevenueTotalAmt

Total Revenue TotalRevenueGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$447,892,568	TotalRevenueColumnAmt
Related Or Exempt Func Income	$172,809,941	RelatedOrExemptFuncIncomeAmt
Unrelated Business Revenue	$27,270,649	UnrelatedBusinessRevenueAmt
Exclusion	$160,117,379	ExclusionAmt

Grants To Domestic Orgs GrantsToDomesticOrgsGrp

Field	Value	IRS element (for citing)
Total	$417,269	TotalAmt
Program Services	$417,269	ProgramServicesAmt

Grants To Domestic Individuals GrantsToDomesticIndividualsGrp

Field	Value	IRS element (for citing)
Total	$71,751,650	TotalAmt
Program Services	$71,751,650	ProgramServicesAmt

Foreign Grants ForeignGrantsGrp

Field	Value	IRS element (for citing)
Total	$1,148,723	TotalAmt
Program Services	$1,148,723	ProgramServicesAmt

Comp Current Ofcr Directors CompCurrentOfcrDirectorsGrp

Field	Value	IRS element (for citing)
Total	$4,128,981	TotalAmt
Program Services	$1,170,382	ProgramServicesAmt
Management And General	$1,781,090	ManagementAndGeneralAmt
Fundraising	$1,177,509	FundraisingAmt

Comp Disqual Persons CompDisqualPersonsGrp

Field	Value	IRS element (for citing)
Total	$529,175	TotalAmt
Program Services	$491,861	ProgramServicesAmt
Management And General	$37,314	ManagementAndGeneralAmt

Other Salaries And Wages OtherSalariesAndWagesGrp

Field	Value	IRS element (for citing)
Total	$123,814,560	TotalAmt
Program Services	$105,339,872	ProgramServicesAmt
Management And General	$13,867,545	ManagementAndGeneralAmt
Fundraising	$4,607,143	FundraisingAmt

Pension Plan Contributions PensionPlanContributionsGrp

Field	Value	IRS element (for citing)
Total	$10,509,574	TotalAmt
Program Services	$8,943,630	ProgramServicesAmt
Management And General	$1,178,648	ManagementAndGeneralAmt
Fundraising	$387,296	FundraisingAmt

Other Employee Benefits OtherEmployeeBenefitsGrp

Field	Value	IRS element (for citing)
Total	$23,612,998	TotalAmt
Program Services	$20,398,464	ProgramServicesAmt
Management And General	$2,506,013	ManagementAndGeneralAmt
Fundraising	$708,521	FundraisingAmt

Payroll Taxes PayrollTaxesGrp

Field	Value	IRS element (for citing)
Total	$9,091,673	TotalAmt
Program Services	$7,736,998	ProgramServicesAmt
Management And General	$1,019,631	ManagementAndGeneralAmt
Fundraising	$335,044	FundraisingAmt

Fees For Services Legal FeesForServicesLegalGrp

Field	Value	IRS element (for citing)
Total	$719,642	TotalAmt
Program Services	$45,594	ProgramServicesAmt
Management And General	$674,048	ManagementAndGeneralAmt

Fees For Services Accounting FeesForServicesAccountingGrp

Field	Value	IRS element (for citing)
Total	$212,427	TotalAmt
Program Services	$3,727	ProgramServicesAmt
Management And General	$202,816	ManagementAndGeneralAmt
Fundraising	$5,884	FundraisingAmt

Fees For Services Lobbying FeesForServicesLobbyingGrp

Field	Value	IRS element (for citing)
Total	$97,945	TotalAmt
Program Services	$83,488	ProgramServicesAmt
Management And General	$10,881	ManagementAndGeneralAmt
Fundraising	$3,576	FundraisingAmt

Fees For Services Other FeesForServicesOtherGrp

Field	Value	IRS element (for citing)
Total	$22,186,109	TotalAmt
Program Services	$21,279,545	ProgramServicesAmt
Management And General	$174,395	ManagementAndGeneralAmt
Fundraising	$732,169	FundraisingAmt

Advertising AdvertisingGrp

Field	Value	IRS element (for citing)
Total	$161,762	TotalAmt
Program Services	$61,925	ProgramServicesAmt
Management And General	$99,837	ManagementAndGeneralAmt

Office Expenses OfficeExpensesGrp

Field	Value	IRS element (for citing)
Total	$10,744,327	TotalAmt
Program Services	$9,865,132	ProgramServicesAmt
Management And General	$808,860	ManagementAndGeneralAmt
Fundraising	$70,335	FundraisingAmt

Information Technology InformationTechnologyGrp

Field	Value	IRS element (for citing)
Total	$3,240,237	TotalAmt
Program Services	$2,359,316	ProgramServicesAmt
Management And General	$731,873	ManagementAndGeneralAmt
Fundraising	$149,048	FundraisingAmt

Occupancy OccupancyGrp

Field	Value	IRS element (for citing)
Total	$8,748,859	TotalAmt
Program Services	$8,086,721	ProgramServicesAmt
Management And General	$443,587	ManagementAndGeneralAmt
Fundraising	$218,551	FundraisingAmt

Travel TravelGrp

Field	Value	IRS element (for citing)
Total	$7,184,718	TotalAmt
Program Services	$6,397,960	ProgramServicesAmt
Management And General	$460,101	ManagementAndGeneralAmt
Fundraising	$326,657	FundraisingAmt

Conferences Meetings ConferencesMeetingsGrp

Field	Value	IRS element (for citing)
Total	$237,697	TotalAmt
Program Services	$197,370	ProgramServicesAmt
Management And General	$24,839	ManagementAndGeneralAmt
Fundraising	$15,488	FundraisingAmt

Interest InterestGrp

Field	Value	IRS element (for citing)
Total	$10,335,389	TotalAmt
Program Services	$8,795,398	ProgramServicesAmt
Management And General	$1,159,114	ManagementAndGeneralAmt
Fundraising	$380,877	FundraisingAmt

Depreciation Depletion DepreciationDepletionGrp

Field	Value	IRS element (for citing)
Total	$30,754,008	TotalAmt
Program Services	$27,467,936	ProgramServicesAmt
Management And General	$2,096,598	ManagementAndGeneralAmt
Fundraising	$1,189,474	FundraisingAmt

Insurance InsuranceGrp

Field	Value	IRS element (for citing)
Total	$2,138,688	TotalAmt
Program Services	$28,335	ProgramServicesAmt
Management And General	$2,110,252	ManagementAndGeneralAmt
Fundraising	$101	FundraisingAmt

Other Expenses OtherExpensesGrp (4 entries)

DescDesc	TotalTotalAmt	Program ServicesProgramServicesAmt	Management And GeneralManagementAndGeneralAmt	FundraisingFundraisingAmt
FELLOWSHIPS, STUDENT PRIZES	$2,861,247	$2,815,301	$45,946
EQUIPMENT RENTAL & maintenance	$7,422,686	$6,579,156	$821,667	$21,863
NON CAPPED PLANT EXPENSES	$3,266,117	$2,779,460	$366,295	$120,362
STUDENT ASSISTANCE	$10,773,136	$10,773,136

All Other Expenses AllOtherExpensesGrp

Field	Value	IRS element (for citing)
Total	$0	TotalAmt
Program Services	$0	ProgramServicesAmt
Management And General	$0	ManagementAndGeneralAmt
Fundraising	$0	FundraisingAmt

Total Functional Expenses TotalFunctionalExpensesGrp

Field	Value	IRS element (for citing)
Total	$366,089,597	TotalAmt
Program Services	$325,018,349	ProgramServicesAmt
Management And General	$30,621,350	ManagementAndGeneralAmt
Fundraising	$10,449,898	FundraisingAmt

Cash Non Interest Bearing CashNonInterestBearingGrp

Field	Value	IRS element (for citing)
BOY	$49,938,522	BOYAmt
EOY	$86,680,450	EOYAmt

Savings And Temp Cash Invst SavingsAndTempCashInvstGrp

Field	Value	IRS element (for citing)
BOY	$62,626,371	BOYAmt
EOY	$93,588,146	EOYAmt

Pledges And Grants Receivable PledgesAndGrantsReceivableGrp

Field	Value	IRS element (for citing)
BOY	$59,331,322	BOYAmt
EOY	$63,551,891	EOYAmt

Accounts Receivable AccountsReceivableGrp

Field	Value	IRS element (for citing)
BOY	$2,485,737	BOYAmt
EOY	$1,926,859	EOYAmt

Receivables From Officers Etc ReceivablesFromOfficersEtcGrp

Field	Value	IRS element (for citing)
BOY	$159,736	BOYAmt
EOY	$135,345	EOYAmt

Rcvbl From Disqualified Prsn RcvblFromDisqualifiedPrsnGrp

Field	Value	IRS element (for citing)
BOY	$0	BOYAmt
EOY	$0	EOYAmt

Oth Notes Loans Receivable Net OthNotesLoansReceivableNetGrp

Field	Value	IRS element (for citing)
BOY	$13,882,945	BOYAmt
EOY	$13,898,841	EOYAmt

Inventories For Sale Or Use InventoriesForSaleOrUseGrp

Field	Value	IRS element (for citing)
BOY	$356,484	BOYAmt
EOY	$371,789	EOYAmt

Prepaid Expenses Defrd Charges PrepaidExpensesDefrdChargesGrp

Field	Value	IRS element (for citing)
BOY	$15,902,445	BOYAmt
EOY	$21,779,822	EOYAmt

Field	Value	IRS element (for citing)
Land Bldg Equip Cost Or Other Bss	$1,292,290,078	LandBldgEquipCostOrOtherBssAmt
Land Bldg Equip Accum Deprec	$596,307,829	LandBldgEquipAccumDeprecAmt

Land Bldg Equip Basis Net LandBldgEquipBasisNetGrp

Field	Value	IRS element (for citing)
BOY	$692,147,599	BOYAmt
EOY	$695,982,249	EOYAmt

Investments Pub Traded Sec InvestmentsPubTradedSecGrp

Field	Value	IRS element (for citing)
BOY	$41,006,656	BOYAmt
EOY	$39,724,949	EOYAmt

Investments Other Securities InvestmentsOtherSecuritiesGrp

Field	Value	IRS element (for citing)
BOY	$3,865,198,337	BOYAmt
EOY	$4,033,354,441	EOYAmt

Investments Program Related InvestmentsProgramRelatedGrp

Field	Value	IRS element (for citing)
BOY	$878,985	BOYAmt
EOY	$694,900	EOYAmt

Intangible Assets IntangibleAssetsGrp

Field	Value	IRS element (for citing)
EOY	$0	EOYAmt

Other Assets Total OtherAssetsTotalGrp

Field	Value	IRS element (for citing)
BOY	$15,930,733	BOYAmt
EOY	$24,144,390	EOYAmt

Total Assets TotalAssetsGrp

Field	Value	IRS element (for citing)
BOY	$4,819,845,872	BOYAmt
EOY	$5,075,834,072	EOYAmt

Accounts Payable Accr Expnss AccountsPayableAccrExpnssGrp

Field	Value	IRS element (for citing)
BOY	$69,035,528	BOYAmt
EOY	$65,665,286	EOYAmt

Grants Payable GrantsPayableGrp

Field	Value	IRS element (for citing)
EOY	$0	EOYAmt

Deferred Revenue DeferredRevenueGrp

Field	Value	IRS element (for citing)
BOY	$1,460,335	BOYAmt
EOY	$1,397,478	EOYAmt

Tax Exempt Bond Liabilities TaxExemptBondLiabilitiesGrp

Field	Value	IRS element (for citing)
BOY	$372,756,585	BOYAmt
EOY	$364,908,374	EOYAmt

Escrow Account Liability EscrowAccountLiabilityGrp

Field	Value	IRS element (for citing)
BOY	$56,578,663	BOYAmt
EOY	$55,548,188	EOYAmt

Loans From Officers Directors LoansFromOfficersDirectorsGrp

Field	Value	IRS element (for citing)
BOY	$0	BOYAmt
EOY	$0	EOYAmt

Mortg Notes Pybl Scrd Invst Prop MortgNotesPyblScrdInvstPropGrp

Field	Value	IRS element (for citing)
EOY	$0	EOYAmt

Unsecured Notes Loans Payable UnsecuredNotesLoansPayableGrp

Field	Value	IRS element (for citing)
EOY	$0	EOYAmt

Other Liabilities OtherLiabilitiesGrp

Field	Value	IRS element (for citing)
BOY	$446,694,223	BOYAmt
EOY	$479,514,093	EOYAmt

Total Liabilities TotalLiabilitiesGrp

Field	Value	IRS element (for citing)
BOY	$946,525,334	BOYAmt
EOY	$967,033,419	EOYAmt

Field	Value	IRS element (for citing)
Organization Follows FASB117	Yes (X)	OrganizationFollowsFASB117Ind

No Donor Restriction Net Assets NoDonorRestrictionNetAssetsGrp

Field	Value	IRS element (for citing)
BOY	$641,038,401	BOYAmt
EOY	$699,391,183	EOYAmt

Donor Restriction Net Assets DonorRestrictionNetAssetsGrp

Field	Value	IRS element (for citing)
BOY	$3,232,282,137	BOYAmt
EOY	$3,409,409,470	EOYAmt

Cap Stk Tr Prin Current Funds CapStkTrPrinCurrentFundsGrp

Field	Value	IRS element (for citing)
EOY	$0	EOYAmt

Pd In Cap Srpls Land Bldg Eqp Fund PdInCapSrplsLandBldgEqpFundGrp

Field	Value	IRS element (for citing)
EOY	$0	EOYAmt

Rtn Earn Endowment Incm Oth Fnds RtnEarnEndowmentIncmOthFndsGrp

Field	Value	IRS element (for citing)
EOY	$0	EOYAmt

Total Net Assets Fund Balance TotalNetAssetsFundBalanceGrp

Field	Value	IRS element (for citing)
BOY	$3,873,320,538	BOYAmt
EOY	$4,108,800,653	EOYAmt

Tot Liab Net Assets Fund Balance TotLiabNetAssetsFundBalanceGrp

Field	Value	IRS element (for citing)
BOY	$4,819,845,872	BOYAmt
EOY	$5,075,834,072	EOYAmt

Field	Value	IRS element (for citing)
Info In Schedule O Part XI	Yes (X)	InfoInScheduleOPartXIInd
Reconcilation Revenue Expnss	$81,802,971	ReconcilationRevenueExpnssAmt
Net Unrlzd Gains Losses Invst	$161,099,157	NetUnrlzdGainsLossesInvstAmt
Other Changes In Net Assets	-$7,422,013	OtherChangesInNetAssetsAmt
Method Of Accounting Accrual	Yes (X)	MethodOfAccountingAccrualInd
Accountant Compile Or Review	false	AccountantCompileOrReviewInd
FS Audited	Yes (true)	FSAuditedInd

FS Audited Basis FSAuditedBasisGrp

Field	Value	IRS element (for citing)
Consolidated Basis Fincl Stmt	Yes (X)	ConsolidatedBasisFinclStmtInd

Field	Value	IRS element (for citing)
Audit Committee	Yes (true)	AuditCommitteeInd
Federal Grant Audit Required	Yes (true)	FederalGrantAuditRequiredInd
Federal Grant Audit Performed	Yes (true)	FederalGrantAuditPerformedInd

Schedule A IRS990ScheduleA

Field	Value	IRS element (for citing)
School	Yes (X)	SchoolInd

Gifts Grants Contri Rcvd170 GiftsGrantsContriRcvd170Grp

Field	Value	IRS element (for citing)
Current Tax Year Minus4 Years	$53,444,284	CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years	$61,524,755	CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years	$52,484,139	CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year	$75,476,741	CurrentTaxYearMinus1YearAmt
Current Tax Year	$87,694,599	CurrentTaxYearAmt
Total	$330,624,518	TotalAmt

Tax Rev Levied Orgnztnl Bnft170 TaxRevLeviedOrgnztnlBnft170Grp

Field	Value	IRS element (for citing)
Total	$0	TotalAmt

Govt Furn Srvc Fclts Vl170 GovtFurnSrvcFcltsVl170Grp

Field	Value	IRS element (for citing)
Total	$0	TotalAmt

Total Calendar Year170 TotalCalendarYear170Grp

Field	Value	IRS element (for citing)
Current Tax Year Minus4 Years	$53,444,284	CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years	$61,524,755	CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years	$52,484,139	CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year	$75,476,741	CurrentTaxYearMinus1YearAmt
Current Tax Year	$87,694,599	CurrentTaxYearAmt
Total	$330,624,518	TotalAmt

Field	Value	IRS element (for citing)
Substantial Contributors Tot	$28,518,004	SubstantialContributorsTotAmt
Public Support Total170	$302,106,514	PublicSupportTotal170Amt

Gross Investment Income170 GrossInvestmentIncome170Grp

Field	Value	IRS element (for citing)
Current Tax Year Minus4 Years	$2,730,369	CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years	$2,312,920	CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years	$2,618,075	CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year	$4,259,315	CurrentTaxYearMinus1YearAmt
Current Tax Year	$6,699,734	CurrentTaxYearAmt
Total	$18,620,413	TotalAmt

Unrelated Business Net Incm170 UnrelatedBusinessNetIncm170Grp

Field	Value	IRS element (for citing)
Current Tax Year Minus4 Years	$0	CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years	$0	CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years	$0	CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year	$394,317	CurrentTaxYearMinus1YearAmt
Current Tax Year	$3,193,845	CurrentTaxYearAmt
Total	$3,588,162	TotalAmt

Other Income170 OtherIncome170Grp

Field	Value	IRS element (for citing)
Current Tax Year Minus4 Years	$0	CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years	$0	CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years	$0	CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year	$0	CurrentTaxYearMinus1YearAmt
Current Tax Year	$0	CurrentTaxYearAmt
Total	$0	TotalAmt

Field	Value	IRS element (for citing)
Total Support	$352,833,093	TotalSupportAmt
Gross Receipts Rltd Activities	$781,334,729	GrossReceiptsRltdActivitiesAmt
Public Support CY170	0.8562	PublicSupportCY170Pct
Public Support PY170	0.8880	PublicSupportPY170Pct
Thirty Thr Pct Suprt Tests CY170	Yes (X)	ThirtyThrPctSuprtTestsCY170Ind

Form990 Schedule A Part VI Form990ScheduleAPartVIGrp

Field	Value	IRS element (for citing)
Form And Line Reference	Schedule A, Part I, Line 2 Explanation of filing	FormAndLineReferenceDesc
Explanation	To qualify for limited donor disclosure under the special rule on Schedule B, the public support test has been completed to demonstrate the university meets the quantitative support test under Section 509(a)(1) of the internal revenue code, which requires an organization to receive a substantial part of its support from a governmental unit or from the general public.	ExplanationTxt

Schedule B IRS990ScheduleB

Contributor Information ContributorInformationGrp

Field	Value	IRS element (for citing)
Contributor	RESTRICTED	ContributorNum

Contributor Business Name ContributorBusinessName

Field	Value	IRS element (for citing)
Business Name Line1	RESTRICTED	BusinessNameLine1

Contributor US Address ContributorUSAddress

Field	Value	IRS element (for citing)
Address Line1	RESTRICTED	AddressLine1
Address Line2	RESTRICTED	AddressLine2
City	RESTRICTED	City
State	RESTRICTED	State
ZIP Code	RESTRICTED	ZIPCode

Field	Value	IRS element (for citing)
Total Contributions	RESTRICTED	TotalContributionsAmt

Schedule C IRS990ScheduleC

Field	Value	IRS element (for citing)
Volunteers	false	VolunteersInd
Paid Staff Or Management	false	PaidStaffOrManagementInd
Media Advertisements	false	MediaAdvertisementsInd
Mailings Members	false	MailingsMembersInd
Publications Or Broadcast	false	PublicationsOrBroadcastInd
Grants Other Organizations	false	GrantsOtherOrganizationsInd
Direct Contact Legislators	Yes (true)	DirectContactLegislatorsInd
Direct Contact Legislators	$920	DirectContactLegislatorsAmt
Rallies Demonstrations	false	RalliesDemonstrationsInd
Other Activities	Yes (true)	OtherActivitiesInd
Other Activities	$97,025	OtherActivitiesAmt
Total Lobbying Expenditures	$97,945	TotalLobbyingExpendituresAmt
Not Described Section501c3	false	NotDescribedSection501c3Ind

Supplemental Information Detail SupplementalInformationDetail

Field	Value	IRS element (for citing)
Form And Line Reference	Schedule C, Part II-B, Line 1 DETAILED DESCRIPTION OF THE LOBBYING ACTIVITY	FormAndLineReferenceDesc
Explanation	Williams College sent correspondence to the Massachusetts congressional delegation related to a proposed bill. The time devoted to this effort was approximately 8 hours of professional time as reported. THE COLLEGE PAYS MEMBERSHIP DUES TO MEMBER ORGANIZATIONS INCLUDING NACUBO, NAICU, AICUM, and COHFE, WHICH MAY ENGAGE IN LOBBYING ACTIVITIES. THEREFORE, A PORTION OF THE DUES MAY BE ATTRIBUTABLE TO LOBBYING ACTIVITIES.	ExplanationTxt

Schedule D IRS990ScheduleD

Field	Value	IRS element (for citing)
Donor Advised Funds Held	1	DonorAdvisedFundsHeldCnt
Donor Advised Funds Grants	$143,969	DonorAdvisedFundsGrantsAmt
Donor Advised Funds Vl EOY	$3,113,640	DonorAdvisedFundsVlEOYAmt
Disclosed Org Leg Ctrl	Yes (true)	DisclosedOrgLegCtrlInd
Disclosed For Charitable Prps	Yes (true)	DisclosedForCharitablePrpsInd

Art Public Exhibition Amounts ArtPublicExhibitionAmountsGrp

Field	Value	IRS element (for citing)
Revenues Included	$670,000	RevenuesIncludedAmt
Assets Included	$63,979,950	AssetsIncludedAmt

Field	Value	IRS element (for citing)
Collection Used Pub Exhibition	Yes (X)	CollectionUsedPubExhibitionInd
Coll Used Scholarly Rsrch	Yes (X)	CollUsedScholarlyRsrchInd
Collection Used Preservation	Yes (X)	CollectionUsedPreservationInd
Coll Used Loan Or Exch Prog	Yes (X)	CollUsedLoanOrExchProgInd
Solicited Assets Sale	false	SolicitedAssetsSaleInd
Agent Trustee Etc	false	AgentTrusteeEtcInd
Incl Escrow Custodial Acct Liab	Yes (true)	InclEscrowCustodialAcctLiabInd
Explanation Provided	Yes (X)	ExplanationProvidedInd

CY Endwmt Fund CYEndwmtFundGrp

Field	Value	IRS element (for citing)
Beginning Year Balance	$3,368,671,196	BeginningYearBalanceAmt
Contributions	$15,698,167	ContributionsAmt
Investment Earnings Or Losses	$334,326,067	InvestmentEarningsOrLossesAmt
Grants Or Scholarships	$38,545,032	GrantsOrScholarshipsAmt
Other Expenditures	$140,512,525	OtherExpendituresAmt
Administrative Expenses	$9,197,923	AdministrativeExpensesAmt
End Year Balance	$3,530,439,950	EndYearBalanceAmt

CY Minus1 Yr Endwmt Fund CYMinus1YrEndwmtFundGrp

Field	Value	IRS element (for citing)
Beginning Year Balance	$3,411,185,988	BeginningYearBalanceAmt
Contributions	$24,733,810	ContributionsAmt
Investment Earnings Or Losses	$99,124,060	InvestmentEarningsOrLossesAmt
Grants Or Scholarships	$38,022,809	GrantsOrScholarshipsAmt
Other Expenditures	$121,653,542	OtherExpendituresAmt
Administrative Expenses	$6,696,311	AdministrativeExpensesAmt
End Year Balance	$3,368,671,196	EndYearBalanceAmt

CY Minus2 Yr Endwmt Fund CYMinus2YrEndwmtFundGrp

Field	Value	IRS element (for citing)
Beginning Year Balance	$4,025,701,926	BeginningYearBalanceAmt
Contributions	$16,930,533	ContributionsAmt
Investment Earnings Or Losses	-$440,193,050	InvestmentEarningsOrLossesAmt
Grants Or Scholarships	$44,904,769	GrantsOrScholarshipsAmt
Other Expenditures	$137,175,288	OtherExpendituresAmt
Administrative Expenses	$9,173,364	AdministrativeExpensesAmt
End Year Balance	$3,411,185,988	EndYearBalanceAmt

CY Minus3 Yr Endwmt Fund CYMinus3YrEndwmtFundGrp

Field	Value	IRS element (for citing)
Beginning Year Balance	$2,742,044,936	BeginningYearBalanceAmt
Contributions	$25,098,149	ContributionsAmt
Investment Earnings Or Losses	$1,353,707,368	InvestmentEarningsOrLossesAmt
Grants Or Scholarships	$22,296,237	GrantsOrScholarshipsAmt
Other Expenditures	$66,154,793	OtherExpendituresAmt
Administrative Expenses	$6,697,497	AdministrativeExpensesAmt
End Year Balance	$4,025,701,926	EndYearBalanceAmt

CY Minus4 Yr Endwmt Fund CYMinus4YrEndwmtFundGrp

Field	Value	IRS element (for citing)
Beginning Year Balance	$2,788,599,176	BeginningYearBalanceAmt
Contributions	$31,790,239	ContributionsAmt
Investment Earnings Or Losses	$88,528,909	InvestmentEarningsOrLossesAmt
Grants Or Scholarships	$37,181,396	GrantsOrScholarshipsAmt
Other Expenditures	$123,348,548	OtherExpendituresAmt
Administrative Expenses	$6,343,444	AdministrativeExpensesAmt
End Year Balance	$2,742,044,936	EndYearBalanceAmt

Field	Value	IRS element (for citing)
Board Designated Balance EOY	0.0995	BoardDesignatedBalanceEOYPct
Prmnnt Endowment Balance EOY	0.871	PrmnntEndowmentBalanceEOYPct
Term Endowment Balance EOY	0.0295	TermEndowmentBalanceEOYPct
Endowments Held Unrelated Org	false	EndowmentsHeldUnrelatedOrgInd
Endowments Held Related Org	false	EndowmentsHeldRelatedOrgInd

Land LandGrp

Field	Value	IRS element (for citing)
Investment Cost Or Other Basis	$0	InvestmentCostOrOtherBasisAmt
Other Cost Or Other Basis	$11,576,402	OtherCostOrOtherBasisAmt
Book Value	$11,576,402	BookValueAmt

Buildings BuildingsGrp

Field	Value	IRS element (for citing)
Investment Cost Or Other Basis	$0	InvestmentCostOrOtherBasisAmt
Other Cost Or Other Basis	$989,035,009	OtherCostOrOtherBasisAmt
Depreciation	$465,087,012	DepreciationAmt
Book Value	$523,947,997	BookValueAmt

Leasehold Improvements LeaseholdImprovementsGrp

Field	Value	IRS element (for citing)
Investment Cost Or Other Basis	$0	InvestmentCostOrOtherBasisAmt
Other Cost Or Other Basis	$0	OtherCostOrOtherBasisAmt
Depreciation	$0	DepreciationAmt
Book Value	$0	BookValueAmt

Equipment EquipmentGrp

Field	Value	IRS element (for citing)
Investment Cost Or Other Basis	$0	InvestmentCostOrOtherBasisAmt
Other Cost Or Other Basis	$133,192,113	OtherCostOrOtherBasisAmt
Depreciation	$95,049,799	DepreciationAmt
Book Value	$38,142,314	BookValueAmt

Other Land Buildings OtherLandBuildingsGrp

Field	Value	IRS element (for citing)
Investment Cost Or Other Basis	$0	InvestmentCostOrOtherBasisAmt
Other Cost Or Other Basis	$158,486,554	OtherCostOrOtherBasisAmt
Depreciation	$36,171,018	DepreciationAmt
Book Value	$122,315,536	BookValueAmt

Field	Value	IRS element (for citing)
Total Book Value Land Buildings	$695,982,249	TotalBookValueLandBuildingsAmt

Other Securities OtherSecuritiesGrp (8 entries)

DescDesc	Book ValueBookValueAmt	Method ValuationMethodValuationCd
Global Long and Long/Short Equity Funds	$1,472,955,816	F
Absolute return funds	$545,455,751	F
Venture Capital funds	$674,693,932	F
Real Asset funds	$159,539,931	F
Real Estate funds	$253,239,477	F
Noninvestment Grade Fixed income funds	$236,155,296	F
Other Investment assets	$80,362,645	F
Buyout Funds	$610,951,593	F

Field	Value	IRS element (for citing)
Total Book Value Securities	$4,033,354,441	TotalBookValueSecuritiesAmt

Other Liabilities Org OtherLiabilitiesOrgGrp (3 entries)

DescDesc	AmtAmt
US GOV'T ADVANCES FOR STUDENTS	$446,513
INVEST. ON BEHALF OF SUPP ORG	$471,384,764
DEFERRED EXCISE TAX LIABILITY	$7,682,816

Field	Value	IRS element (for citing)
Total Liability	$479,514,093	TotalLiabilityAmt
Footnote Text	Yes (X)	FootnoteTextInd
Total Rev Etc Audited Fincl Stmt	$532,886,275	TotalRevEtcAuditedFinclStmtAmt
Net Unrealized Gains Invst	$161,099,157	NetUnrealizedGainsInvstAmt
Other Revenue	-$7,422,013	OtherRevenueAmt
Revenue Not Reported	$153,677,144	RevenueNotReportedAmt
Revenue Subtotal	$379,209,131	RevenueSubtotalAmt
Other Revenues Not Included	$68,683,437	OtherRevenuesNotIncludedAmt
Revenue Not Reported Fincl Stmt	$68,683,437	RevenueNotReportedFinclStmtAmt
Total Revenue Per Form990	$447,892,568	TotalRevenuePerForm990Amt
Tot Expns Etc Audited Fincl Stmt	$297,406,160	TotExpnsEtcAuditedFinclStmtAmt
Other Expenses Included	$0	OtherExpensesIncludedAmt
Expenses Not Reported	$0	ExpensesNotReportedAmt
Expenses Subtotal	$297,406,160	ExpensesSubtotalAmt
Other Expenses Not Included	$68,683,437	OtherExpensesNotIncludedAmt
Expenses Not Rpt Fincl Stmt	$68,683,437	ExpensesNotRptFinclStmtAmt
Total Expenses Per Form990	$366,089,597	TotalExpensesPerForm990Amt

Supplemental Information Detail SupplementalInformationDetail (8 entries)

Form And Line ReferenceFormAndLineReferenceDesc	ExplanationExplanationTxt
Schedule D, Part III, Line 1a Collections of Art, Historical Treasures, or Other Similar Assets	THE COLLEGE'S ART AND RARE BOOK COLLECTIONS ARE RECORDED AT COST OR APPRAISED VALUE AT THE DATE OF ACQUISITION. COLLECTIONS ARE NOT DEPRECIATED.
Schedule D, Part III, Line 4 Collections of art - description of collections	THE MUSEUM'S PRINCIPAL MISSION IS TO ENCOURAGE MULTIDISCIPLINARY TEACHING THROUGH ENCOUNTERS WITH ART OBJECTS THAT TRAVERSE TIME PERIODS AND CULTURES.
Schedule D, Part IV, Line 2b Explanation of escrow agreement	WILLIAMS COLLEGE SERVES AS TRUSTEE FOR VARIOUS CHARITABLE REMAINDER TRUSTS AND MAINTAINS THE ASSETS AND CORRESPONDING RESERVE LIABILITIES ON ITS BALANCE SHEET.
Schedule D, Part V, Line 4 Intended uses of endowment funds	THE COLLEGE MANAGES AND INVESTS THE ENDOWMENT TO PROVIDE CURRENT AND FUTURE SUPPORT FOR THE OPERATIONS OF THE COLLEGE. EXAMPLES OF SPECIFIC PURPOSES INCLUDE SCHOLARSHIPS FOR STUDENTS, FACILITIES UPKEEP, RESEARCH, FACULTY COMPENSATION AND OTHER ACADEMIC AND STUDENT OPERATIONS.
Schedule D, Part X, Line 2 FIN 48 (ASC 740) footnote	Williams College is exempt from federal and state income taxes to the extent provided by section 501(c)(3) of the Internal Revenue Code and equivalent state provisions, except with regard to unrelated business income which is taxable at corporate income tax rates, and provisions of the 2017 Tax Cuts and Jobs Act (the "Act"). The Act impacts the College in several ways, including excise taxes on compensation and net investment income, changes to the net operating loss rules, repeal of the certain minimum tax (AMT), and the computation of UBTI separately for each unrelated trade or business. Further, the Act established a flat 21% US federal corporate tax rate and federal corporate unrelated business income tax rate. The College has made provisions for a deferred tax liability from net unrealized gains on qualifying assets and estimated at the 1.4% tax rate of $6.7 million and $3.8 million as of June 30, 2024 and 2023, respectively. Accruals for the current portion of the excise and compensation tax of $1.0 million were also included for the years ending June 30, 2024 and 2023. Excise taxes paid related to the year ended June 30, 2023 were $1.1 million. The College believes it has taken no significant uncertain tax positions.
Schedule D, Part XI, Line 2(d) Other revenues in audited financial statements not in form 990	Investment Income, annuitant payments and change in value of split-interest agreements, net - -2130925 Adjustments for post-employment liabilities - -2234381 Unrealized gains on interest rate swaps - 1980297 Change in non controlling interest - -1531520 Deferred excise tax - nonoperating - -3874857 Gain on purchase of noncontrolling interest - 1390348 Other adjustment - 157448 Write off of uncollectible contributions receivable - -1178423
Schedule D, Part XI, Line 4(b) Other revenues in form 990 not in audited financial statements	Financial Aid - 71751650 Rental Expenses - -3068213
Schedule D, Part XII, Line 4(b) Other expenses in form 990 not in audited financial statements	Financial Aid - 71751650 Rental Expenses - -3068213

Schedule E IRS990ScheduleE

Field	Value	IRS element (for citing)
Nondiscriminatory Policy Stmt	Yes (true)	NondiscriminatoryPolicyStmtInd
Policy Stmt In Brochures Etc	Yes (true)	PolicyStmtInBrochuresEtcInd
Plcy Pblczd Via Broadcast Media	Yes (true)	PlcyPblczdViaBroadcastMediaInd
Maintain Racial Comp Recs	Yes (true)	MaintainRacialCompRecsInd
Maintain Scholarships Recs	Yes (true)	MaintainScholarshipsRecsInd
Maintain Cpy Of Brochures Etc	Yes (true)	MaintainCpyOfBrochuresEtcInd
Maintain Cpy Of All Sol	Yes (true)	MaintainCpyOfAllSolInd
Discriminate Race Stdnts Rghts	false	DiscriminateRaceStdntsRghtsInd
Discriminate Race Admiss Plcy	false	DiscriminateRaceAdmissPlcyInd
Discriminate Race Emplm Fculty	false	DiscriminateRaceEmplmFcultyInd
Discriminate Race Schs	false	DiscriminateRaceSchsInd
Discriminate Race Educ Plcy	false	DiscriminateRaceEducPlcyInd
Discriminate Race Use Of Fclts	false	DiscriminateRaceUseOfFcltsInd
Discriminate Race Athlt Prog	false	DiscriminateRaceAthltProgInd
Discriminate Race Other Acty	false	DiscriminateRaceOtherActyInd
Government Financial Aid Rcvd	Yes (true)	GovernmentFinancialAidRcvdInd
Government Financial Aid Rvkd	false	GovernmentFinancialAidRvkdInd
Compliance With Rev Proc7550	Yes (true)	ComplianceWithRevProc7550Ind

Supplemental Information Detail SupplementalInformationDetail (2 entries)

Form And Line ReferenceFormAndLineReferenceDesc	ExplanationExplanationTxt
Schedule E, Part I, Line 3 RACIALLY NONDISCRIMINATORY POLICY	Williams College has publicized its racially nondiscriminatory policy on its course catalog/BULLETIN AND ON THE COLLEGE'S WEBSITE AT WWW.WILLIAMS.EDU.
Schedule E, Part I, Line 6(a) FINANCIAL AID OR ASSISTANCE FROM A GOVERNMENT	STUDENTS AT WILLIAMS COLLEGE RECEIVE TITLE IV FEDERAL FINANCIAL AID. STUDENTS APPLY FOR AND RECEIVE FEDERAL FINANCIAL AID & PROFESSORS APPLY FOR AND RECEIVE GOVERNMENT GRANTS.

Schedule F IRS990ScheduleF

Field	Value	IRS element (for citing)
Grant Records Maintained	Yes (true)	GrantRecordsMaintainedInd

Account Activities Outside US AccountActivitiesOutsideUSGrp (15 entries)

RegionRegionTxt	OfficesOfficesCnt	EmployeeEmployeeCnt	Type Of Activities ConductedTypeOfActivitiesConductedTxt	Specific Services ProvidedSpecificServicesProvidedTxt	Region Total ExpendituresRegionTotalExpendituresAmt
Europe (Including Iceland and Greenland)	1	1	Program Services	Instruction	$1,672,218
Europe (Including Iceland and Greenland)	1	1	Program Services	Administrative Expenses	$33,323
Europe (Including Iceland and Greenland)	1	1	Program Services	Research	$864
North America (Canada & Mexico only)	0	0	Program Services	Research	$2,000
North America (Canada & Mexico only)	0	0	Program Services	Administrative Expenses	$9,168
Central America and the Caribbean	0	0	Program Services	Instruction	$81,588
East Asia and the Pacific	0	0	Program Services	Instruction	$950
East Asia and the Pacific	0	0	Program Services	Research	$2,479
South Asia	0	0	Program Services	Instruction	$3,075
South Asia	0	0	Program Services	Research	$545
Sub-Saharan Africa	0	0	Program Services	Instruction	$5,500
Russia and Neighboring States	0	0	Program Services	Instruction	$500
Central America and the Caribbean	0	0	Investments		$1,966,736,913
Europe (Including Iceland and Greenland)	0	0	Investments		$42,488,484
Sub-Saharan Africa	0	0	Investments		$64,229,377

Field	Value	IRS element (for citing)
Subtotal Offices	3	SubtotalOfficesCnt
Subtotal Employees	3	SubtotalEmployeesCnt
Continuation Total Office	0	ContinuationTotalOfficeCnt
Continuation Total Employee	0	ContinuationTotalEmployeeCnt
Total Office	3	TotalOfficeCnt
Total Employee	3	TotalEmployeeCnt
Subtotal Spent	$2,075,266,984	SubtotalSpentAmt
Continuation Spent	$0	ContinuationSpentAmt
Total Spent	$2,075,266,984	TotalSpentAmt

Foreign Individuals Grants ForeignIndividualsGrantsGrp (5 entries)

Type Of AssistanceTypeOfAssistanceTxt	RegionRegionTxt	RecipientRecipientCnt	Cash GrantCashGrantAmt	Manner Of Cash DisbursementMannerOfCashDisbursementTxt	Description Of Non Cash AsstDescriptionOfNonCashAsstTxt	Valuation Method UsedValuationMethodUsedDesc
FINANCIAL AID -SCHOLARSHIPS TO STUDENTS	Russia and Neighboring States	8	$12,840	CASH PAYMENT	N/A	FMV
FINANCIAL AID -SCHOLARSHIPS TO STUDENTS	South America	9	$14,781	CASH PAYMENT	N/A	FMV
STUDY AWAY	Europe (Including Iceland and Greenland)	18	$518,588	CASH PAYMENT	N/A	FMV
STUDY AWAY	East Asia and the Pacific	4	$16,557	CASH PAYMENT	N/A	FMV
FELLOWSHIPS	Europe (Including Iceland and Greenland)	14	$585,957	CASH PAYMENT	N/A	FMV

Field	Value	IRS element (for citing)
Transfer To Foreign Corp	Yes (true)	TransferToForeignCorpInd
Interest In Foreign Trust	false	InterestInForeignTrustInd
Foreign Corp Ownership	Yes (true)	ForeignCorpOwnershipInd
Passive Foreign Investmest Co	Yes (true)	PassiveForeignInvestmestCoInd
Foreign Partnership	Yes (true)	ForeignPartnershipInd
Boycott Countries	false	BoycottCountriesInd

Supplemental Information Detail SupplementalInformationDetail (3 entries)

Form And Line ReferenceFormAndLineReferenceDesc	ExplanationExplanationTxt
Schedule F, Part I, Line 2 Procedures for monitoring use of grant funds	FOR THE STUDENT TUITION PAYMENTS, WE REMIT FUNDS DIRECTLY TO THE INSTITUTIONS BASED ON INVOICES RECEIVED FROM THE INSTITUTIONS.
Schedule F, Part I, Line 3 Method used to account for expenditures on org's financial statements	CENTRAL AMERICA AND THE CARIBBEAN-Accrual,; EAST ASIA AND THE PACIFIC-Accrual; EUROPE (INCLUDING ICELAND AND GREENLAND)-Accrual; NORTH AMERICA (CANADA & MEXICO ONLY)-Accrual; RUSSIA AND NEIGHBORING STATES-Accrual; SOUTH ASIA-Accrual; SUB-SAHARAN AFRICA-Accrual,
Schedule F, Part III Method used to account for expenditures on org's financial statements	EAST ASIA AND THE PACIFIC -Accrual EUROPE (INCLUDING ICELAND AND GREENLAND) -Accrual RUSSIA AND NEIGHBORING STATES -Accrual SOUTH AMERICA -Accrual

Schedule I IRS990ScheduleI

Field	Value	IRS element (for citing)
Grant Records Maintained	Yes (true)	GrantRecordsMaintainedInd

Recipient Table RecipientTable (17 entries)

Address Line1USAddress/AddressLine1Txt	Address Line2USAddress/AddressLine2Txt	CityUSAddress/CityNm	State AbbreviationUSAddress/StateAbbreviationCd	ZIPUSAddress/ZIPCd	Recipient EINRecipientEIN	IRC SectionIRCSectionDesc	Cash GrantCashGrantAmt	Purpose Of GrantPurposeOfGrantTxt
Berkshire Black Economic Council
33 Dunham Mall	Suite 101	Pittsfield	MA	01201	854196468	501(c)(3)	$7,000	Program Support
Berkshire Immigrant Center
67 East Street		Pittsfield	MA	01201	862361326	501(c)(3)	$7,000	Program Support
Harmony Homestead & Wholeness Center Inc
101 West End Road		Hillsdale	NY	12529	822830803	501(c)(3)	$7,000	Program Support
Images Cinema
PO Box 283		Williamstown	MA	01267	043407257	501(c)(3)	$31,002	Program Support
Massachusetts MoCA Foundation Inc
1040 Mass Moca Way		North Adams	MA	01247	043113688	501(c)(3)	$55,000	Program Support
Multicultural BRIDGE
17 Main Street Suite B3		Lee	MA	01238	261211169	501(c)(3)	$7,000	Program Support
NAACP Berkshire County Branch
PO Box 605		Pittsfield	MA	01201	800873976	501(c)(4)	$7,000	Program Support
New Canaan Community Foundation
111 Cherry Street		New Canaan	CT	06840	060970466	501(c)(3)	$16,185	Program Support
Northern Berkshire United Way Inc
PO Box 955		North Adams	MA	01247	042104785	501(c)(3)	$7,444	Program Support
Rites of Passage And Empowerment
PO Box 1016		Pittsfield	MA	01202	874393361	501(c)(3)	$7,000	Program Support
Soul Fire Farm Institute Inc
1972 NY Highway 2		Petersburg	NY	12138	472549969	501(c)(3)	$7,000	Program Support
Stockbridge-Munsee Community
N8476 Moh He Con Nuck Road		Bowler	WI	54416	391145449	Tribe	$7,000	Program Support
The Boston Foundation
75 Arlington Street FL 3		Boston	MA	02116	042104021	501(c)(3)	$143,969	Program Support
Trustees of Tufts College
169 Holland Street		Somerville	MA	02144	042103634	501(c)(3)	$10,000	Program Support
Williamstown Community Chest
PO Box 204		Williamstown	MA	01267	046044550	501(c)(3)	$27,044	Program Support
Williamstown Youth Center
66 School Street		Williamstown	MA	01267	042105836	501(c)(3)	$15,000	Program Support
WilliNet Inc
34 Spring Street		Williamstown	MA	01267	043253056	501(c)(3)	$10,625	Program Support

Field	Value	IRS element (for citing)
Total501c3 Org	15	Total501c3OrgCnt
Total Other Org	2	TotalOtherOrgCnt

Grants Other Asst To Indiv In US GrantsOtherAsstToIndivInUSGrp

Field	Value	IRS element (for citing)
Grant Type	FINANCIAL AID - SCHOLARSHIPS TO STUDENTS	GrantTypeTxt
Recipient	1188	RecipientCnt
Cash Grant	$71,751,650	CashGrantAmt

Supplemental Information Detail SupplementalInformationDetail

Field	Value	IRS element (for citing)
Form And Line Reference	Schedule I, Part I, Line 2 Procedures for monitoring use of grant funds.	FormAndLineReferenceDesc
Explanation	FINANCIAL AID TO INDIVIDUALS IS AWARDED BY FINANCIAL AID PROFESSIONALS IN ACCORDANCE WITH THE COLLEGE POLICIES. GRANTS TO ORGANIZATIONS IN PART II ARE TO SUPPORT LOCAL SERVICE ORGANIZATIONS IN THE SURROUNDING COMMUNITIES. Williams has close proximity to these local schools, community organizations, and 501(C)3 organizations in order to monitor the use of its funds.	ExplanationTxt

Schedule J IRS990ScheduleJ

Field	Value	IRS element (for citing)
Housing Allowance Or Residence	Yes (X)	HousingAllowanceOrResidenceInd
Club Dues Or Fees	Yes (X)	ClubDuesOrFeesInd
Personal Services	Yes (X)	PersonalServicesInd
Written Policy Ref T And E Expnss	Yes (true)	WrittenPolicyRefTAndEExpnssInd
Substantiation Required	Yes (true)	SubstantiationRequiredInd
Compensation Committee	Yes (X)	CompensationCommitteeInd
Compensation Survey	Yes (X)	CompensationSurveyInd
Board Or Committee Approval	Yes (X)	BoardOrCommitteeApprovalInd
Severance Payment	false	SeverancePaymentInd
Supplemental Nonqual Rtr Plan	false	SupplementalNonqualRtrPlanInd
Equity Based Comp Arrngm	false	EquityBasedCompArrngmInd
Comp Based On Revenue Of Flng Org	false	CompBasedOnRevenueOfFlngOrgInd
Comp Bsd On Rev Related Orgs	false	CompBsdOnRevRelatedOrgsInd
Comp Bsd Net Earns Flng Org	false	CompBsdNetEarnsFlngOrgInd
Comp Bsd Net Earns Rltd Orgs	false	CompBsdNetEarnsRltdOrgsInd
Any Non Fixed Payments	false	AnyNonFixedPaymentsInd
Initial Contract Exception	false	InitialContractExceptionInd

Rltd Org Officer Trst Key Empl RltdOrgOfficerTrstKeyEmplGrp (22 entries)

TitleTitleTxt	Base Compensation Filing OrgBaseCompensationFilingOrgAmt	Compensation Based On Rltd OrgsCompensationBasedOnRltdOrgsAmt	Bonus Filing OrganizationBonusFilingOrganizationAmount	Bonus Related OrganizationsBonusRelatedOrganizationsAmt	Other Compensation Filing OrgOtherCompensationFilingOrgAmt	Other Compensation Rltd OrgsOtherCompensationRltdOrgsAmt	Deferred Compensation Flng OrgDeferredCompensationFlngOrgAmt	Deferred Comp Rltd OrgsDeferredCompRltdOrgsAmt	Nontaxable Benefits Filing OrgNontaxableBenefitsFilingOrgAmt	Nontaxable Benefits Rltd OrgsNontaxableBenefitsRltdOrgsAmt	Total Compensation Filing OrgTotalCompensationFilingOrgAmt	Total Compensation Rltd OrgsTotalCompensationRltdOrgsAmt	Comp Report Prior990 Filing OrgCompReportPrior990FilingOrgAmt	Comp Report Prior990 Rltd OrgsCompReportPrior990RltdOrgsAmt
MAUD MANDEL
PRESIDENT	$660,350	$0	$0	$0	$14,502	$0	$137,194	$0	$79,717	$0	$891,763	$0	$0	$0
COLLETTE CHILTON
CHIEF INVESTMENT OFFICER (THROUGH JUNE 30, 2023)	$654,860	$0	$214,277	$0	$47,029	$0	$102,373	$0	$24,366	$0	$1,042,905	$0	$214,277	$0
DAVID LOVE
FORMER PROVOST, PROF OF ECONOMICS	$230,867	$0	$0	$0	$1,005	$0	$26,175	$0	$31,843	$0	$289,890	$0	$0	$0
MARLENE SANDSTROM
FORMER DEAN OF COLLEGE, PROF OF PSYCH	$224,335	$0	$0	$0	$0	$0	$25,391	$0	$31,843	$0	$281,569	$0	$0	$0
PROTIK M MAJUMDER
FORMER PRESIDENT, PROF OF PHYSICS	$180,217	$0	$0	$0	$0	$0	$20,475	$0	$38,779	$0	$239,471	$0	$0	$0
LEE PARK
FORMER DEAN OF THE FACULTY, PROF OF CHEMISTRY	$185,399	$0	$0	$0	$0	$0	$20,682	$0	$25,574	$0	$231,655	$0	$0	$0
DENISE BUELL
FORMER DEAN OF THE FACULTY, PROF OF RELIGION	$174,951	$0	$0	$0	$0	$0	$19,230	$0	$36,548	$0	$230,729	$0	$0	$0
SAFA ZAKI
FORMER DEAN OF THE FACULTY, PROF OF PSYCHOLOGY	$151,799	$0	$0	$0	$433	$0	$17,673	$0	$16,475	$0	$186,380	$0	$0	$0
MICHAEL WAGNER
VP FOR FINANCE & OPERATIONS, TREASURER	$490,114	$0	$0	$0	$67,082	$0	$37,194	$0	$38,609	$0	$632,999	$0	$0	$0
ABIGAIL WATTLEY
CHIEF INVESTMENT OFFICER (EFFECTIVE JULY 1, 2023)	$497,182	$0	$66,854	$0	$975	$0	$37,194	$0	$392	$0	$602,597	$0	$0	$0
MEGAN MOREY
VP OF COLLEGE RELATIONS	$402,297	$0	$5,000	$0	$0	$0	$37,194	$0	$82,213	$0	$526,704	$0	$0	$0
MARGARET LONG
DEAN OF THE COLLEGE	$267,596	$0	$0	$0	$23,261	$0	$33,296	$0	$66,214	$0	$390,367	$0	$0	$0
EIKO SINIAWER
PROVOST	$269,344	$0	$0	$0	$23,023	$0	$33,296	$0	$24,251	$0	$349,914	$0	$0	$0
LETICIA SMITH-EVANS HAYNES
VP FOR INSTITUTIONAL DIVERSITY, EQUITY, AND INCLUSION	$255,361	$0	$0	$0	$0	$0	$29,864	$0	$38,093	$0	$323,318	$0	$0	$0
JAMES REISCHE
VP OF COMMUNICATIONS	$233,135	$0	$0	$0	$22,500	$0	$29,864	$0	$35,341	$0	$320,840	$0	$0	$0
KELI GAIL
SECRETARY OF THE COLLEGE	$264,180	$0	$0	$0	$100	$0	$29,864	$0	$22,435	$0	$316,579	$0	$0	$0
LARA SHORE-SHEPPARD
DEAN OF THE FACULTY (EFFECTIVE JULY 1, 2023)	$225,158	$0	$0	$0	$11,350	$0	$26,326	$0	$37,671	$0	$300,505	$0	$0	$0
BRADFORD WAKEMAN
MANAGING DIR / COO, INV OFFICE	$407,632	$0	$64,610	$0	$1,800	$0	$37,194	$0	$32,724	$0	$543,960	$0	$0	$0
JAMES ART
GENERAL COUNSEL	$270,339	$0	$0	$0	$0	$0	$31,185	$0	$98,664	$0	$400,188	$0	$0	$0
PAMELA FRANKS
DIRECTOR OF THE WILLIAMS COLLEGE MUSEUM OF ART	$264,371	$0	$5,000	$0	$0	$0	$30,205	$0	$47,386	$0	$346,962	$0	$0	$0
KENNETH KUTTNER
PROFESSOR OF ECONOMICS	$265,649	$0	$0	$0	$0	$0	$29,343	$0	$50,254	$0	$345,246	$0	$0	$0
JOHN KLEINER
PROFESSOR OF ENGLISH	$280,648	$0	$0	$0	$0	$0	$10,554	$0	$26,227	$0	$317,429	$0	$0	$0

Supplemental Information Detail SupplementalInformationDetail (4 entries)

Form And Line ReferenceFormAndLineReferenceDesc	ExplanationExplanationTxt
Schedule J, Part I, Line 1a Housing allowance or residence for personal use	THE PRESIDENT WAS REQUIRED TO LIVE ON CAMPUS AS A CONDITION OF THEIR EMPLOYMENT AND FOR THE CONVENIENCE OF WILLIAMS. Pursuant to section 119, the housing is excludable from income and was not treated as taxable compensation. ONE LISTED OFFICER RECEIVED A TAXABLE HOUSING ALLOWANCE. THE VALUE OF THE ALLOWANCE IS IMPUTED AS INCOME AND REPORTED ON FORM W-2. THE VALUE OF THE ALLOWANCE IS INCLUDED IN PART II, COLUMN B(III).
Schedule J, Part I, Line 1a Health or social club dues or initiation fees	WILLIAMS PAID DUES FOR A PRIVATE ALUMNI CLUB FOR THE PRESIDENT. THE AMOUNTS were paid for qualified business purposes and not REPORTED AS TAXABLE COMPENSATION.
Schedule J, Part I, Line 1a Personal services	THE PRESIDENT RECEIVED CERTAIN PERSONAL SERVICES PROVIDED AT THEIR HOUSE. SUCH SERVICES THAT WERE NOT BUSINESS RELATED WERE REPORTED AS TAXABLE COMPENSATION ON FORM W-2. THE VALUE OF THE SERVICES IS INCLUDED IN PART II, COLUMN B(III).
Schedule J, Part I LINE 4B AND LINE 7	MEMBERS OF THE INVESTMENT OFFICE STAFF ARE ELIGIBLE TO RECEIVE AN ANNUAL BONUS UP TO A CERTAIN PERCENTAGE OF THEIR BASE SALARY. THE BONUS IS DETERMINED BY THE PERFORMANCE OF THE INVESTMENT PORTFOLIO IN RELATION TO THE PERFORMANCE OF THE POLICY BENCHMARK. THE POLICY BENCHMARK IS ESTABLISHED BY THE INVESTMENT COMMITTEE OF THE BOARD OF TRUSTEES. THE BONUS IS PAID OUT OVER TIME, REQUIRES THE INDIVIDUAL TO REMAIN EMPLOYED IN ORDER TO BE ELIGIBLE TO RECEIVE PAYMENT, AND IS SUBJECT TO NEGATIVE EARNINGS PROVISIONS.

Schedule K IRS990ScheduleK

Tax Exempt Bonds Issues TaxExemptBondsIssuesGrp (4 entries)

Bond ReferenceBondReferenceCd	Bond Issuer EINBondIssuerEIN	CUSIPCUSIPNum	Bond IssuedBondIssuedDt	Issue PriceIssuePriceAmt	PurposePurposeDesc	DefeasedDefeasedInd	On Behalf Of IssuerOnBehalfOfIssuerInd	Pool FinancingPoolFinancingInd
MASS HEALTH & EDU FACILITIES AUTHORITY - SERIES J&K
A	042456011	57586CPX7	2006-04-03	$73,396,573	1996 & 2003 CURRENT REFUNDING	false	false	false
MASS DEVELOPMENT FINANCE Agency - SERIES N&O
B	043431814	57583UAA6	2011-03-24	$92,077,256	CONSTRUCTION AND 1993 & 2007 CURRENT REFUNDING	false	false	false
MASS HEALTH & EDU FACILITIES AUTHORITY - H&I
C	042456011	57585KW79	2003-04-02	$115,049,757	CONSTRUCTION AND 1993 CURRENT REFUNDING	false	false	false
MASS DEVELOPMENT FINANCE AGENCY - SERIES Q&R
D	043431814	57584XTN1	2016-07-14	$118,161,121	New construction and Refinance 2006 & 2007 debt	false	false	false

Tax Exempt Bonds Proceeds TaxExemptBondsProceedsGrp (4 entries)

Bond ReferenceBondReferenceCd	RetiredRetiredAmt	Total ProceedsTotalProceedsAmt	Issuance Costs From ProceedsIssuanceCostsFromProceedsAmt	Other Spent ProceedsOtherSpentProceedsAmt	Substantial CompletionSubstantialCompletionYr	Refunding Tax Exempt BondsRefundingTaxExemptBondsInd	Refunding Taxable BondsRefundingTaxableBondsInd	Final Allocation MadeFinalAllocationMadeInd	Adequate Books And Rec MaintAdequateBooksAndRecMaintInd	Capital ExpendituresCapitalExpendituresAmt	Bond DefeasedBondDefeasedAmt
A	$63,670,814	$73,396,573	$556,293	$72,840,280	2006	Yes (true)	false	Yes (true)	Yes (true)
B	$41,236,233	$92,077,256	$661,056	$41,250,000	2013	Yes (true)	false	Yes (true)	Yes (true)	$50,166,200
C	$100,796,702	$115,049,757	$644,884	$13,705,468	2005	Yes (true)	false	Yes (true)	Yes (true)	$100,699,405
D	$10,773,270	$118,161,121	$621,091	$47,540,030	2018	Yes (true)	false	Yes (true)	Yes (true)	$70,000,000	$0

Tax Exempt Bonds Private Bus Use TaxExemptBondsPrivateBusUseGrp (4 entries)

Bond ReferenceBondReferenceCd	Owning Bond Financed PropertyOwningBondFinancedPropertyInd	Any Lease ArrangementsAnyLeaseArrangementsInd	Mgmt Contract Bond Fincd PropMgmtContractBondFincdPropInd	Any Research AgreementsAnyResearchAgreementsInd	Bond Iss Meet Prvt Sec Pymt TestBondIssMeetPrvtSecPymtTestInd	Change In Use Bond Financed PropChangeInUseBondFinancedPropInd	Procs Nonqualified Bond RemdtdProcsNonqualifiedBondRemdtdInd
A	false	false	false	false	false	false	Yes (true)
B	false	false	false	false	false	false	Yes (true)
C	false	false	false	false	false	false	Yes (true)
D	false	false	false	false	false	false	Yes (true)

Tax Exempt Bonds Arbitrage TaxExemptBondsArbitrageGrp (4 entries)

Bond ReferenceBondReferenceCd	Form8038 T FiledForm8038TFiledInd	Rebate Not Due YetRebateNotDueYetInd	Exception To RebateExceptionToRebateInd	No Rebate DueNoRebateDueInd	Variable Rate IssueVariableRateIssueInd	Hedge Identified In Bks And RecHedgeIdentifiedInBksAndRecInd	Term Of HedgeTermOfHedgePct	Superintegrated HedgeSuperintegratedHedgeInd	Hedge TerminatedHedgeTerminatedInd	Gross Proceeds Invested In GICGrossProceedsInvestedInGICInd	Gross Proceeds InvestedGrossProceedsInvestedInd	Written Proc To Monitor ReqsWrittenProcToMonitorReqsInd	Term Of GICTermOfGICPct	Regulatory Safe Harbor StsfdRegulatorySafeHarborStsfdInd
MORGAN STANLEY
A	false	false	false	Yes (true)	Yes (true)	Yes (true)	20.0	false	false	false	false	Yes (true)
(no name)
B	false	false	false	Yes (true)	Yes (true)	false				false	false	Yes (true)
Trinity
C	false	false	false	Yes (true)	false	false				Yes (true)	false	Yes (true)	3.2	Yes (true)
Goldman Sachs
D	false	false	false	Yes (true)	Yes (true)	Yes (true)	30.0	false	false	false	false	Yes (true)

Procedures Corrective Action ProceduresCorrectiveActionGrp (4 entries)

Bond ReferenceBondReferenceCd	Procedures Corrective ActionProceduresCorrectiveActionInd
A	Yes (true)
B	Yes (true)
C	Yes (true)
D	Yes (true)

Supplemental Information Detail SupplementalInformationDetail (5 entries)

Form And Line ReferenceFormAndLineReferenceDesc	ExplanationExplanationTxt
Schedule K, Part IV, Line 2c COLUMN A	Issuer name: MASS. HEALTH & EDU FACILITIES AUTHORITY - SERIES J&K The calculation for computing no rebate due was performed on 08/22/2016
Schedule K, Part IV, Line 2c COLUMN B	Issuer name: MASS. DEVELOPMENT FINANCE Agency - SERIES N&O The calculation for computing no rebate due was performed on 08/12/2020
Schedule K, Part IV, Line 2c COLUMN C	Issuer name: MASS. HEALTH & EDU FACILITIES AUTHORITY - H&I The calculation for computing no rebate due was performed on 03/22/2007
Schedule K, Part IV, Line 2c COLUMN D	Issuer name: MASS. DEVELOPMENT FINANCE AGENCY - SERIES Q&R The calculation for computing no rebate due was performed on 09/20/2021
Schedule K, Part IV, Line 2c COLUMN A	Issuer name: MASS. DEVELOPMENT FINANCE AGENCY SERIES S The calculation for computing no rebate due was performed on 09/17/2021

Schedule K IRS990ScheduleK

Tax Exempt Bonds Issues TaxExemptBondsIssuesGrp (3 entries)

Bond ReferenceBondReferenceCd	Bond Issuer EINBondIssuerEIN	CUSIPCUSIPNum	Bond IssuedBondIssuedDt	Issue PriceIssuePriceAmt	PurposePurposeDesc	DefeasedDefeasedInd	On Behalf Of IssuerOnBehalfOfIssuerInd	Pool FinancingPoolFinancingInd
MASS DEVELOPMENT FINANCE AGENCY SERIES S
A	043431814	57584XS77	2017-06-08	$60,495,031	CONSTRUCTION	false	false	false
MASS DEVELOPMENT FINANCE AGENCY SERIES T
B	043431814	57584YK24	2021-03-11	$25,924,981	2011 CURRENT REFUNDING	false	false	false
MASS DEVELOPMENT FINANCE AGENCY SERIES U
C	043431814		2023-04-04	$99,670,000	2013 CURRENT REFUNDING	false	false	false

Tax Exempt Bonds Proceeds TaxExemptBondsProceedsGrp (3 entries)

Bond ReferenceBondReferenceCd	RetiredRetiredAmt	Bond DefeasedBondDefeasedAmt	Total ProceedsTotalProceedsAmt	Issuance Costs From ProceedsIssuanceCostsFromProceedsAmt	Capital ExpendituresCapitalExpendituresAmt	Other Spent ProceedsOtherSpentProceedsAmt	Substantial CompletionSubstantialCompletionYr	Refunding Tax Exempt BondsRefundingTaxExemptBondsInd	Refunding Taxable BondsRefundingTaxableBondsInd	Final Allocation MadeFinalAllocationMadeInd	Adequate Books And Rec MaintAdequateBooksAndRecMaintInd
A	$2,832,655	$0	$60,495,031	$387,376	$60,000,000	$107,655	2019	false	false	Yes (true)	Yes (true)
B	$3,933,295		$25,924,981	$351,466		$25,573,515	2021	Yes (true)	false	Yes (true)	Yes (true)
C	$0		$99,670,000	$272,960		$99,397,040	2023	Yes (true)	false	Yes (true)	Yes (true)

Tax Exempt Bonds Private Bus Use TaxExemptBondsPrivateBusUseGrp (3 entries)

Bond ReferenceBondReferenceCd	Owning Bond Financed PropertyOwningBondFinancedPropertyInd	Any Lease ArrangementsAnyLeaseArrangementsInd	Mgmt Contract Bond Fincd PropMgmtContractBondFincdPropInd	Any Research AgreementsAnyResearchAgreementsInd	Bond Iss Meet Prvt Sec Pymt TestBondIssMeetPrvtSecPymtTestInd	Change In Use Bond Financed PropChangeInUseBondFinancedPropInd	Procs Nonqualified Bond RemdtdProcsNonqualifiedBondRemdtdInd
A	false	false	false	false	false	false	Yes (true)
B	false	false	false	false	false	false	Yes (true)
C	false	false	false	false	false	false	Yes (true)

Tax Exempt Bonds Arbitrage TaxExemptBondsArbitrageGrp (3 entries)

Bond ReferenceBondReferenceCd	Form8038 T FiledForm8038TFiledInd	Rebate Not Due YetRebateNotDueYetInd	Exception To RebateExceptionToRebateInd	No Rebate DueNoRebateDueInd	Variable Rate IssueVariableRateIssueInd	Hedge Identified In Bks And RecHedgeIdentifiedInBksAndRecInd	Gross Proceeds Invested In GICGrossProceedsInvestedInGICInd	Gross Proceeds InvestedGrossProceedsInvestedInd	Written Proc To Monitor ReqsWrittenProcToMonitorReqsInd
A	false	false	false	Yes (true)	false	false	false	false	Yes (true)
B	false	Yes (true)	false	false	false	false	false	false	Yes (true)
C	false	Yes (true)	false	false	false	false	false	false	Yes (true)

Procedures Corrective Action ProceduresCorrectiveActionGrp (3 entries)

Bond ReferenceBondReferenceCd	Procedures Corrective ActionProceduresCorrectiveActionInd
A	Yes (true)
B	Yes (true)
C	Yes (true)

Schedule L IRS990ScheduleL

Loans Btwn Org Interested Prsn LoansBtwnOrgInterestedPrsnGrp (3 entries)

Relationship With OrgRelationshipWithOrgTxt	Loan PurposeLoanPurposeTxt	Loan From OrganizationLoanFromOrganizationInd	Original PrincipalOriginalPrincipalAmt	Balance DueBalanceDueAmt	DefaultDefaultInd	Board Or Committee ApprovalBoardOrCommitteeApprovalInd	Written AgreementWrittenAgreementInd
DAVID LOVE
Former Provost	MORTGAGE ON PRIMARY Residence	Yes (X)	$100,000	$51,924	false	false	Yes (true)
Eiko Siniawer
Provost	MORTGAGE ON PRIMARY Residence	Yes (X)	$100,000	$48,188	false	false	Yes (true)
Margaret Long
Dean of The College	Mortgage on Primary Residence	Yes (X)	$100,000	$35,233	false	false	Yes (true)

Field	Value	IRS element (for citing)
Total Balance Due	$135,345	TotalBalanceDueAmt

Grnt Asst Bnft Interested Prsn GrntAsstBnftInterestedPrsnGrp

Field	Value	IRS element (for citing)
Cash Grant	$10,315	CashGrantAmt
Type Of Assistance	Internship grants	TypeOfAssistanceTxt
Assistance Purpose	Student assistance	AssistancePurposeTxt

Bus Tr Involve Interested Prsn BusTrInvolveInterestedPrsnGrp (3 entries)

Relationship DescriptionRelationshipDescriptionTxt	TransactionTransactionAmt	TransactionTransactionDesc	Sharing Of RevenuesSharingOfRevenuesInd
NOAH SANDSTROM
SPOUSE OF MARLENE SANDSTROM, FORMER OFFICER	$214,744	EMPLOYMENT AGREEMENT	false
ANTHONY SHEPPARD
Spouse of Lara Shore-Sheppard, Dean of Faculty	$272,539	EMPLOYMENT AGREEMENT	false
STEVEN SIMON
Spouse of Maud Mandel, President	$37,314	EMPLOYMENT AGREEMENT	false

Supplemental Information Detail SupplementalInformationDetail (2 entries)

Form And Line ReferenceFormAndLineReferenceDesc

ExplanationExplanationTxt

Schedule L, Part II Column (h)

ELIGIBLE EMPLOYEES, INCLUDING LISTED PERSONS, ENTER INTO MORTGAGE AGREEMENTS IN ACCORDANCE WITH POLICIES AND PROCEDURES AS OUTLINED IN FACULTY AND STAFF HANDBOOKS WHICH HAVE BEEN APPROVED BY APPLICABLE GOVERNING COMMITTEES. EACH MORTGAGE IS REVIEWED AND APPROVED BY THE VICE PRESIDENT FOR FINANCE AND ADMINISTRATION & TREASURER TO ENSURE COMPLIANCE AND CONSISTENCY WITH THE POLICY.

Schedule L, Part III Columns (a) and (b)

PER THE IRS INSTRUCTIONS FOR SCHEDULE L, COLLEGES, UNIVERSITIES, AND PRIMARY AND SECONDARY SCHOOLS ARE NOT REQUIRED TO IDENTIFY INTERESTED PERSONS TO WHOM THEY PROVIDED SCHOLARSHIPS, FELLOWSHIPS, AND SIMILAR FINACIAL ASSISTANCE. INSTEAD, THESE ORGANIZATIONS MUST GROUP EACH TYPE OF FINANCIAL ASSISTANCE PROVIDED TO INTERESTED PERSONS IN SEPERATE LINES. FOR EACH LINE, THE SCHOOL IS TO REPORT IN COLUMN (C) THE TYPE OF ASSISTANCE AND AGGREGATE DOLLAR AMOUNT OF THAT ASSISTANCE; COLUMNS (A) AND (B) ARE TO BE LEFT BLANK.

Schedule M IRS990ScheduleM

Works Of Art WorksOfArtGrp

Field	Value	IRS element (for citing)
Non Cash Checkbox	Yes (X)	NonCashCheckboxInd
Contribution	4	ContributionCnt
Noncash Contributions Rpt F990	$600,000	NoncashContributionsRptF990Amt
Method Of Determining Revenues	Opinions of experts	MethodOfDeterminingRevenuesTxt

Books And Publications BooksAndPublicationsGrp

Field	Value	IRS element (for citing)
Non Cash Checkbox	Yes (X)	NonCashCheckboxInd
Noncash Contributions Rpt F990	$70,882	NoncashContributionsRptF990Amt
Method Of Determining Revenues	Opinions of experts	MethodOfDeterminingRevenuesTxt

Securities Publicly Traded SecuritiesPubliclyTradedGrp

Field	Value	IRS element (for citing)
Non Cash Checkbox	Yes (X)	NonCashCheckboxInd
Contribution	259	ContributionCnt
Noncash Contributions Rpt F990	$10,781,089	NoncashContributionsRptF990Amt
Method Of Determining Revenues	Market value	MethodOfDeterminingRevenuesTxt

Secur Prtnrshp Trust Intrsts SecurPrtnrshpTrustIntrstsGrp

Field	Value	IRS element (for citing)
Non Cash Checkbox	Yes (X)	NonCashCheckboxInd
Contribution	1	ContributionCnt
Noncash Contributions Rpt F990	$30,000	NoncashContributionsRptF990Amt
Method Of Determining Revenues	Market value	MethodOfDeterminingRevenuesTxt

Other Non Cash Contri Table OtherNonCashContriTableGrp

Field	Value	IRS element (for citing)
Non Cash Checkbox	Yes (X)	NonCashCheckboxInd
Desc	Laboratory equipment, telescopes, dinners, host reimbursements	Desc
Contribution	9	ContributionCnt
Noncash Contributions Rpt F990	$20,944	NoncashContributionsRptF990Amt
Method Of Determining Revenues	Opinions of experts	MethodOfDeterminingRevenuesTxt

Field	Value	IRS element (for citing)
Form8283 Received	5	Form8283ReceivedCnt
Any Property That Must Be Held	false	AnyPropertyThatMustBeHeldInd
Review Process Unusual NC Gifts	Yes (true)	ReviewProcessUnusualNCGiftsInd
Third Parties Used	Yes (true)	ThirdPartiesUsedInd

Supplemental Information Detail SupplementalInformationDetail (2 entries)

Form And Line ReferenceFormAndLineReferenceDesc	ExplanationExplanationTxt
Schedule M, Part I EXPLANATIONS OF REPORTING METHOD FOR NUMBER OF CONTRIBUTIONS	IN COLUMN B, THE COLLEGE IS GENERALLY REPORTING THE NUMBER OF CONTRIBUTIONS. FOR WORKS OF ART, THE COLLEGE IS REPORTING THE NUMBER OF Donors.
Schedule M, Part I, Line 32b Third parties used to solicit, process, or sell noncash contributions	WILLIAMS COLLEGE GENERALLY USES A BROKER/AGENT TO FACILITATE THE SALE OF REAL PROPERTY.

Schedule O IRS990ScheduleO

Supplemental Information Detail SupplementalInformationDetail (12 entries)

Form And Line ReferenceFormAndLineReferenceDesc	ExplanationExplanationTxt
Form 990, Part III, Line 1 ORGANIZATION'S MISSION	WILLIAMS SEEKS TO PROVIDE THE FINEST POSSIBLE LIBERAL ARTS EDUCATION BY NURTURING IN ITS STUDENTS THE ACADEMIC AND CIVIC VIRTUES AND THEIR RELATED TRAITS OF CHARACTER. AS BOTH AN EDUCATIONAL AND SOCIAL IMPERATIVE, WILLIAMS WELCOMES TALENTED STUDENTS IRRESPECTIVE OF THEIR FINANCIAL RESOURCES. ONCE ENROLLED, THEY LEARN - BOTH INSIDE AND OUTSIDE THE CLASSROOM - THAT THE PRIVILEGE OF A WILLIAMS EDUCATION IMPLIES BOTH THE OPPORTUNITY AND RESPONSIBILITY TO SERVE SOCIETY AT LARGE. THE COLLEGE STRIVES TO ACHIEVE SUCH EXCELLENCE BY FOSTERING A COMMUNITY OF LEARNING THAT COMPRISES STUDENTS, FACULTY AND STAFF, IN PARTNERSHIP WITH NETWORKS OF DEEPLY DEVOTED ALUMNI AND PARENTS.
Form 990, Part VI, Line 1a Delegate broad authority to a committee	WILLIAMS COLLEGE'S GOVERNING BODY AND GOVERNING DOCUMENTS DELEGATE AUTHORITY ON A LIMITED SCOPE TO AN EXECUTIVE COMMITTEE CONSISTING OF THE BOARD CHAIR, THE PRESIDENT OF THE COLLEGE, AND 5-7 OTHER BOARD MEMBERS SELECTED ANNUALLY BY THE CHAIR AND PRESIDENT ACTING JOINTLY.
Form 990, Part VI, Line 2 Family/business relationships amongst interested persons	Matthew Harris and Gretchen Howard - Business relationship
Form 990, Part VI, Line 11b Review of form 990 by governing body	WORKING WITH CROWE LLP, THE FORM 990 IS PREPARED FOR REVIEW BY SENIOR MANAGEMENT AND THE AUDIT COMMITTEE. CROWE LLP SIGNS THE RETURN AS PAID PREPARER. The final Form 990 is provided to the full board in advance of filing with the IRS.
Form 990, Part VI, Line 12c Conflict of interest policy	TRUSTEES, OFFICERS, AND SENIOR STAFF ARE REQUIRED TO COMPLETE A CONFLICT OF INTEREST DISCLOSURE ANNUALLY. THE DISCLOSURE FORMS ARE REVIEWED BY THE CHAIR OF THE AUDIT COMMITTEE. TRUSTEES OR OFFICERS HAVING A CONFLICT OF INTEREST ON ANY MATTER THAT COMES BEFORE THE BOARD, OR ANY COMMITTEE OF THE BOARD, FOR ACTION RECUSE THEMSELVES FROM PARTICIPATING IN THE DECISION. EMPLOYEES ARE REQUIRED TO COMPLETE A CONFLICT OF INTEREST DISCLOSURE FORM ANNUALLY. DISCLOSURES ARE REVIEWED BY DEPARTMENT HEADS AND SENIOR STAFF. ANY EMPLOYEE WITH A CONFLICT OF INTEREST WOULD BE PRECLUDED FROM INVOLVEMENT IN DECISION MAKING OR FINANCIAL DEALINGS WITH THE ENTITY OR RELATIONSHIP GIVING RISE TO THE CONFLICT. TRUSTEES, OFFICERS, AND EMPLOYEES ARE REQUIRED TO REPORT ANY MID-YEAR CHANGES TO THE PRESIDENT'S OFFICE AND THEIR SUPERVISOR RESPECTIVELY.
Form 990, Part VI, Line 15a Process to establish compensation of top management official	Williams College assigns the duty of setting the President's compensation to the Executive Committee of the Board of Trustees that annually reviews compensation. The Executive Committee considers compensation surveys, market data, and analysis. The deliberations and decisions are documented. This process took place in Spring of 2024.
Form 990, Part VI, Line 15b Process to establish compensation of other employees	The compensation of the organization's other officers and key employees is determined by the President. Each year, the Chief Human Resources Officer provides the President with a multiyear summary of compensation benchmarking data for members of senior staff. The benchmarking data comprises salary survey data aggregated by the College and University Professional Association of Human Resources, as well as an independent survey administered by Sullivan Cotter. The President consults with the Executive Committee of the board and the deliberations and decisions are documented. This process took place in Spring of 2024.
Form 990, Part VI, Line 18 How forms are made available to the public	THE FORM 990 IS AVAILABLE UPON REQUEST, ON THE COLLEGE WEBSITE, AND ON GUIDESTAR.ORG. THE FORM 990-t IS AVAILABLE UPON REQUEST.
Form 990, Part VI, Line 19 Required documents available to the public	WILLIAMS COLLEGE'S GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, AND FINANCIAL STATEMENTS ARE POSTED ON THE COLLEGE WEBSITE.
Form 990, Part XI, Line 9 Other changes in net assets or fund balances	Investment income, annuitant payments and change in value of split-interest agreements, net - -2130925; Adjustments for post-employment liabilities - -2234381; Unrealized gains on interest rate swaps - 1980297; Change in Noncontrolling interest - -1531520; Change in deferred tax liability and payable - nonoperating - -3874857; Other Adjustments - 157448; Gain on purchase of noncontrolling interest - 1390348; Write off of uncollectible contributions receivable - -1178423;
Schedule F, Part I, Line 3(a) ACTIVITIES PER REGION	THE REGION REPORTED IN COLUMN (A) FOR THE COLLEGE'S INVESTMENTS IS BASED ON THE LEGAL DOMICILE OF THE INVESTMENT FUND AS PROVIDED IN THE SCHEDULE F INSTRUCTIONS. THIS DOES NOT NECESSARILY INCLUDE THE REGION OF THE UNDERLYING INVESTMENTS OR THE REGION WHERE THE INVESTMENT ACTIVITY OCCURS.
Schedule F, Part I, Line 3(f) EXPENDITURES FOR AND INVESTMENTS IN THE REGION	ALL EXPENSES OF OUR PROGRAMS ARE RECORDED AS EXPENSES IN THE FINANCIAL STATEMENTS OF THE COLLEGE.

Schedule R IRS990ScheduleR

Id Disregarded Entities IdDisregardedEntitiesGrp

Disregarded Entity Name DisregardedEntityName

Field	Value	IRS element (for citing)
Business Name Line1	WILLIAMS INN LLC	BusinessNameLine1Txt

US Address USAddress

Field	Value	IRS element (for citing)
Address Line1	880 MAIN STREET	AddressLine1Txt
City	WILLIAMSTOWN	CityNm
State Abbreviation	MA	StateAbbreviationCd
ZIP	01267	ZIPCd

Field	Value	IRS element (for citing)
EIN	465431139	EIN
Primary Activities	HOTEL	PrimaryActivitiesTxt
Legal Domicile State	MA	LegalDomicileStateCd
Total Income	$7,218,567	TotalIncomeAmt
End Of Year Assets	$1,534,349	EndOfYearAssetsAmt

Direct Controlling Entity Name DirectControllingEntityName

Field	Value	IRS element (for citing)
Business Name Line1	WILLIAMS COLLEGE	BusinessNameLine1Txt

Id Related Tax Exempt Org IdRelatedTaxExemptOrgGrp (5 entries)

Address Line1USAddress/AddressLine1Txt	CityUSAddress/CityNm	State AbbreviationUSAddress/StateAbbreviationCd	ZIPUSAddress/ZIPCd	EINEIN	Primary ActivitiesPrimaryActivitiesTxt	Legal Domicile StateLegalDomicileStateCd	Exempt Code SectionExemptCodeSectionTxt	Public Charity StatusPublicCharityStatusTxt	Business Name Line1DirectControllingEntityName/BusinessNameLine1Txt	Controlled OrganizationControlledOrganizationInd	Legal Domicile Foreign CountryLegalDomicileForeignCountryCd
STERLING & FRANCINE CLARK ART INSTITUTE
225 SOUTH STREET	WILLIAMSTOWN	MA	01267	042163004	ART MUSEUM	MA	501(c)(3)	Type I	WILLIAMS COLLEGE	Yes (true)
ASSOCIATED KYOTO PROGRAM INC
COLLEGE HALL RM 204	NORTHAMPTON	MA	01063	042996114	EDUCATION	MA	501(c)(3)	Type III-FI	NA	false
WILLIAMS COLLEGE LAND FOUNDATION
880 MAIN STREET	WILLIAMSTOWN	MA	01267	043158500	RE HOLDING	MA	501(c)(2)		WILLIAMS COLLEGE	Yes (true)
WILLIAMS COLLEGE OXFORD PROGRAMME
					EDUCATION		501(c)(3)		WILLIAMS COLLEGE	Yes (true)	UK
WILLIAMS COLLEGE FOUNDATION (UK) LIMITED
					EDUCATION		501(c)(3)		WILLIAMS COLLEGE	Yes (true)	UK

Id Related Org Txbl Corp Tr IdRelatedOrgTxblCorpTrGrp (6 entries)

Address Line1USAddress/AddressLine1Txt	CityUSAddress/CityNm	State AbbreviationUSAddress/StateAbbreviationCd	ZIPUSAddress/ZIPCd	Primary ActivitiesPrimaryActivitiesTxt	Legal Domicile StateLegalDomicileStateCd	Business Name Line1DirectControllingEntityName/BusinessNameLine1Txt	Entity TypeEntityTypeTxt	Controlled OrganizationControlledOrganizationInd	Share Of Total IncomeShareOfTotalIncomeAmt	Share Of EOY AssetsShareOfEOYAssetsAmt	OwnershipOwnershipPct	Direct Controlling NADirectControllingNACd	EINEIN
POOLED INCOME FUNDS (3)
880 Main street	Williamstown	MA	01267	FUNDRAISING	MA	WILLIAMS COLLEGE	Trust	Yes (true)
PERPETUAL TRUSTS (5)
880 Main street	Williamstown	MA	01267	FUNDRAISING	MA	WILLIAMS COLLEGE	Trust	Yes (true)
CHAR REM TRUSTS (23) SEE PART VII
880 Main street	Williamstown	MA	01267	FUNDRAISING		WILLIAMS COLLEGE	Trust	Yes (true)
BERMAN INC
TREASURERS OFFICE HOPKINS HALLS	WILLIAMSTOWN	MA	01267	Art	UT	WILLIAMS COLLEGE	C Corporation	Yes (true)	$0	$315,500	1
OUTSIDE CHAR REM TRSTS (42)
				FUNDRAISING			Trust	Yes (true)				N/A
WILLIAMS RENEWABLES LLC
880 MAIN STREET	WILLIAMSTOWN	MA	01267	RENEWABLE ENERGY	MA	WILLIAMS COLLEGE	C Corporation	Yes (true)	$14,860	$2,258,008	1		812875267

Field	Value	IRS element (for citing)
Receipt Of Int Annts Rnts Rylts	false	ReceiptOfIntAnntsRntsRyltsInd
Gift Grnt Or Cap Contri To Oth Org	false	GiftGrntOrCapContriToOthOrgInd
Gift Grnt Cap Contri From Oth Org	Yes (true)	GiftGrntCapContriFromOthOrgInd
Loans Or Guarantees To Other Org	false	LoansOrGuaranteesToOtherOrgInd
Loans Or Guarantees From Oth Org	false	LoansOrGuaranteesFromOthOrgInd
Div Related Organization	false	DivRelatedOrganizationInd
Asset Sale To Other Org	false	AssetSaleToOtherOrgInd
Asset Purchase From Other Org	false	AssetPurchaseFromOtherOrgInd
Asset Exchange	false	AssetExchangeInd
Rental Of Facilities To Oth Org	false	RentalOfFacilitiesToOthOrgInd
Rental Of Fclts From Oth Org	false	RentalOfFcltsFromOthOrgInd
Perform Of Services For Oth Org	false	PerformOfServicesForOthOrgInd
Perform Of Services By Other Org	false	PerformOfServicesByOtherOrgInd
Sharing Of Facilities	false	SharingOfFacilitiesInd
Paid Employees Sharing	false	PaidEmployeesSharingInd
Reimbursement Paid To Other Org	Yes (true)	ReimbursementPaidToOtherOrgInd
Reimbursement Paid By Other Org	false	ReimbursementPaidByOtherOrgInd
Transfer To Other Org	Yes (true)	TransferToOtherOrgInd
Transfer From Other Org	Yes (true)	TransferFromOtherOrgInd

Transactions Related Org TransactionsRelatedOrgGrp (4 entries)

Transaction TypeTransactionTypeTxt	InvolvedInvolvedAmt	Method Of Amount DeterminationMethodOfAmountDeterminationTxt
PERPETUAL TRUSTS
C	$858,391	CASH
WILLIAMS COLLEGE OXFORD PROGRAMME
P	$1,588,232	CASH
STERLING AND FRANCINE CLARK ART INSTITUTE
R	$13,000,000	CASH
WILLIAMS COLLEGE FOUNDATION (UK) LIMITED
S	$502,687	CASH

Supplemental Information Detail SupplementalInformationDetail (3 entries)

Form And Line ReferenceFormAndLineReferenceDesc	ExplanationExplanationTxt
Schedule R, Part IV, Column (c) CHARITABLE REMAINDER TRUSTS	THE CHARITABLE REMAINDER TRUSTS DISCLOSED IN PART IV, LINE (3) ARE LEGALLY DOMICILED IN CA, IL, MA, AND NY.
Schedule R, Part IV, Column (c) OUTSIDE MANAGED CHARITABLE REMAINDER TRUSTS	THE OUTSIDE MANAGED CHARITABLE REMAINDER TRUSTS DISCLOSED IN PART IV, LINE (5) ARE LEGALLY DOMICILED IN MA AND NY.
Schedule R, Part V, Line 2 STERLING AND FRANCINE CLARK ART INSTITUTE	IN FEBRUARY OF 2017, THE COLLEGE AND THE STERLING AND FRANCINE CLARK INSTITUTE ENTERED INTO A PARTICIPATION AGREEMENT WHEREIN THE CLARK INSTITUTE TRANSFERED SUBSTANTIALLY ALL OF ITS ENDOWMENT OVER A THREE-YEAR PERIOD TO THE COLLEGE TO INVEST IN THE COLLEGE'S INVESTMENT POOL. THE COLLEGE MANAGES THE INVESTMENTS ON THE CLARK INSTITUTE'S BEHALF. THE FUNDS ARE INVESTED IN ACCORDANCE WITH THE COLLEGE'S INVESTMENT POLICIES AND OBJECTIVES. IN FY24, THE CLARK INSTITUTE WITHDREW $13,000,000.