MONTEREY BAY AQUARIUM FOUNDATION: Form 990, tax year 2023

View the entire original 990 at ProPublica ↗

Organization: MONTEREY BAY AQUARIUM FOUNDATION (EIN 94-2487469)
Tax period: 2023-01-01 to 2023-12-31
Filed: 2024-11-14
IRS object ID: 202433199349311398
Schema version: 2023v5.1
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 F
Schedule G
Schedule I
Schedule J
Schedule M
Schedule O

Return header ReturnHeader

Field	Value	IRS element (for citing)
Return	2024-11-14T14:07:41+00:00	ReturnTs
Tax Period End	2023-12-31	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	575 Market Street Suite 3300	AddressLine1Txt
City	San Francisco	CityNm
State Abbreviation	CA	StateAbbreviationCd
ZIP	941055829	ZIPCd

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

Filer Filer

Field	Value	IRS element (for citing)
EIN	942487469	EIN

Business Name BusinessName

Field	Value	IRS element (for citing)
Business Name Line1	Monterey Bay Aquarium Foundation	BusinessNameLine1Txt

Field	Value	IRS element (for citing)
Business Name Control	MONT	BusinessNameControlTxt
Phone	8316484800	PhoneNum

US Address USAddress

Field	Value	IRS element (for citing)
Address Line1	886 Cannery Row	AddressLine1Txt
City	Monterey	CityNm
State Abbreviation	CA	StateAbbreviationCd
ZIP	93940	ZIPCd

Business Officer BusinessOfficerGrp

Field	Value	IRS element (for citing)
Person	ROBERT YOUNG	PersonNm
Person Title	INTERIM CFO	PersonTitleTxt
Signature	2024-11-14	SignatureDt
Discuss With Paid Preparer	Yes (true)	DiscussWithPaidPreparerInd

Preparer Person PreparerPersonGrp

Field	Value	IRS element (for citing)
Preparer Person	Diane Kirmaci	PreparerPersonNm
PTIN	P01578407	PTIN
Phone	4155761100	PhoneNum
Preparation	2024-11-14	PreparationDt

Field	Value	IRS element (for citing)
Tax	2023	TaxYr
Build TS	2024-10-15 13:58:12Z	BuildTS

Form 990 IRS990

Principal Ofcr Business Name PrincipalOfcrBusinessName

Field	Value	IRS element (for citing)
Business Name Line1	Julie Packard	BusinessNameLine1Txt

US Address USAddress

Field	Value	IRS element (for citing)
Address Line1	886 Cannery Row	AddressLine1Txt
City	Monterey	CityNm
State Abbreviation	CA	StateAbbreviationCd
ZIP	93940	ZIPCd

Field	Value	IRS element (for citing)
Gross Receipts	$779,377,057	GrossReceiptsAmt
Group Return For Affiliates	false	GroupReturnForAffiliatesInd
Organization501c3	Yes (X)	Organization501c3Ind
Website Address	www.montereybayaquarium.org	WebsiteAddressTxt
Type Of Organization Corp	Yes (X)	TypeOfOrganizationCorpInd
Formation	1978	FormationYr
Legal Domicile State	CA	LegalDomicileStateCd
Activity Or Mission	The mission of the Monterey Bay Aquarium is to inspire conservation of the ocean. Millions of people worldwide draw inspiration from the Aquarium and look to us to advocate for the ocean and its wildlife.	ActivityOrMissionDesc
Voting Members Governing Body	16	VotingMembersGoverningBodyCnt
Voting Members Independent	15	VotingMembersIndependentCnt
Total Employee	610	TotalEmployeeCnt
Total Volunteers	1097	TotalVolunteersCnt
Total Gross UBI	$303,045	TotalGrossUBIAmt
Net Unrelated Bus Txbl Incm	$40,704	NetUnrelatedBusTxblIncmAmt
PY Contributions Grants	$65,111,538	PYContributionsGrantsAmt
CY Contributions Grants	$70,908,550	CYContributionsGrantsAmt
PY Program Service Revenue	$57,368,044	PYProgramServiceRevenueAmt
CY Program Service Revenue	$70,441,774	CYProgramServiceRevenueAmt
PY Investment Income	$84,696,477	PYInvestmentIncomeAmt
CY Investment Income	$13,683,172	CYInvestmentIncomeAmt
PY Other Revenue	$1,287,290	PYOtherRevenueAmt
CY Other Revenue	$872,401	CYOtherRevenueAmt
PY Total Revenue	$208,463,349	PYTotalRevenueAmt
CY Total Revenue	$155,905,897	CYTotalRevenueAmt
PY Grants And Similar Paid	$255,598	PYGrantsAndSimilarPaidAmt
CY Grants And Similar Paid	$733,951	CYGrantsAndSimilarPaidAmt
CY Benefits Paid To Members	$0	CYBenefitsPaidToMembersAmt
PY Salaries Comp Emp Bnft Paid	$47,304,483	PYSalariesCompEmpBnftPaidAmt
CY Salaries Comp Emp Bnft Paid	$56,132,278	CYSalariesCompEmpBnftPaidAmt
PY Total Prof Fndrsng Expns	$286,840	PYTotalProfFndrsngExpnsAmt
CY Total Prof Fndrsng Expns	$132,349	CYTotalProfFndrsngExpnsAmt
CY Total Fundraising Expense	$6,291,487	CYTotalFundraisingExpenseAmt
PY Other Expenses	$44,750,621	PYOtherExpensesAmt
CY Other Expenses	$51,772,274	CYOtherExpensesAmt
PY Total Expenses	$92,597,542	PYTotalExpensesAmt
CY Total Expenses	$108,770,852	CYTotalExpensesAmt
PY Revenues Less Expenses	$115,865,807	PYRevenuesLessExpensesAmt
CY Revenues Less Expenses	$47,135,045	CYRevenuesLessExpensesAmt
Total Assets BOY	$663,947,623	TotalAssetsBOYAmt
Total Assets EOY	$739,524,414	TotalAssetsEOYAmt
Total Liabilities BOY	$21,778,069	TotalLiabilitiesBOYAmt
Total Liabilities EOY	$24,319,238	TotalLiabilitiesEOYAmt
Net Assets Or Fund Balances BOY	$642,169,554	NetAssetsOrFundBalancesBOYAmt
Net Assets Or Fund Balances EOY	$715,205,176	NetAssetsOrFundBalancesEOYAmt
Mission	The mission of the Monterey Bay Aquarium is to inspire conservation of the ocean. Millions of people worldwide draw inspiration from the Aquarium and look to us to advocate for the ocean and its wildlife.	MissionDesc
Significant New Program Srvc	false	SignificantNewProgramSrvcInd
Significant Change	false	SignificantChangeInd
Expense	$55,513,859	ExpenseAmt
Grant	$596,120	GrantAmt
Revenue	$70,797,229	RevenueAmt
Desc	Marine life exhibition and care expenses of $55,513,859 include the cost of operating and maintaining the Aquarium's living exhibit galleries. Completing important infrastructure improvements: As the Aquarium nears its 40th anniversary, we've continued to address our aging buildings and infrastructure to ensure they're sturdy and secure for many years to come. We upgraded our gas-powered HVAC chillers to more efficient ones that run on electricity. We also increased the capacity of our exotics treatment system that treats seawater leaving exhibits with fine filtration and high doses of UV light, preventing potentially invasive species from entering Monterey Bay. And we reconfigured two of the exhibits in Into the Deep/En lo Profundo to allow for greater temperature flexibility, so we can accommodate animals from various depths and locations. We also continued work on a massive project to update the original supports for our 40-year-old seawater intake pipelines, which is scheduled to be completed in 2024. The new structures will allow us to continue to pump life-sustaining seawater into our exhibits for decades to come. We reopened our Water Science Lab after a much-needed update, which allows our staff to maintain the water quality throughout our exhibits. Finally, we broke ground on a new behind-the-scenes holding facility for our Sea Otter Program. When completed in late 2024, the facility will be critical in managing the wild sea otters we care for each year. Bring the deep sea to light: Our Animal Care and Water Science teams continue to perfect advanced techniques in the care, culturing, and life support for the deep-sea species featured in our newest exhibit: Into the Deep/En lo Profundo. Many of the animals in this exhibit are being displayed to the public for the very first time anywhere. Our teams' ingenuity has led to breakthroughs in raising and displaying such mesmerizing species as chandelier jellies and snowglobe jellies. These delicate animals require very specific water chemistry and temperature to survive. Our Jelly and Water Science teams have learned to create the ideal water chemistry for different jellies to thrive. This means we were able to introduce never-before-seen species like purple-lipped jellies and tower jellies, plus gelatinous midwater species such as common siphonophores, barrel amphipods, and sea angels. A new companion auditorium program to Into the Deep went live in 2023. Living Light: Bioluminescence showcases the mysteriously beautiful ability of some deep-sea organisms to create their own light. Guests who were awed by the bioluminescence room in the exhibit can now glow on and experience more of the brilliant displays on the big screen. The program was filmed and produced by our Film & Video team, which worked with the Dive Safety team to capture underwater footage in locations from Bocas Del Toro, Panama, to Kona, Hawaii, as well as here in Monterey Bay. We're proud that the Association of Zoos and Aquariums honored Into the Deep with its Exhibit Innovation Award for 2023, which recognizes excellence in live animal display and exhibit design Welcoming a new veterinarian: We expanded our veterinary care staff in July when we welcomed Dr. Ri Chang as our second staff veterinarian. They were previously a veterinary extern here in 2021 and made a strong impression with their experience in aquatic animal medicine. Dr. Ri is our first scuba-certified vet and brings to us their cutting-edge knowledge of next-generation diagnostic technologies, especially advanced imaging techniques such as ultrasound, computed tomography, and molecular sequencing.	Desc

Prog Srvc Accom Acty2 ProgSrvcAccomActy2Grp

Field	Value	IRS element (for citing)
Expense	$21,742,877	ExpenseAmt
Grant	$123,831	GrantAmt
Revenue	$0	RevenueAmt
Desc	Education and Outreach expenses of $21,742,877 include the cost of education programs for teachers, students, and emerging teen leaders. Our commitment to offering free educational programs, which dates back to our founding, is stronger than ever. Throughout 2023 our education team worked to restore in a post-pandemic world our many programs for teens, teachers, and schoolchildren so we can fulfill the full potential of our Bechtel Family Center for Ocean Education and Leadership. From preschool through high school and beyond, our programs build empathy, teach about the wonders of the ocean, and build participants' confidence to act. Restarting our Splash Zone Head Start Program: Each year, about 1,000 preschool children, along with their families and teachers, visit the Aquarium for a bilingual (Spanish and English) education program in partnership with 50 Head Start Centers across Monterey and Santa Cruz counties. Students learn the names of ocean animals through interactive games, touch hermit crabs in our Touch Pools, and wave at swimming penguins in our African Penguin exhibit. For two decades, the Splash Zone Head Start collaboration has taught students to respect and care for the natural world, building empathy from an early age. Though we were able to adapt the program to a virtual format during the pandemic, it was wonderful to welcome these young students back to the Aquarium for in-person sessions in 2023. Welcoming back Underwater Explorers: The Underwater Explorers program was back for the first time since before the pandemic - 2,686 kids ages eight to thirteen years old took part in surface scuba diving in our Great Tide Pool. Through Days of Discovery, an additional 1,500 young people with special needs were offered the opportunity to participate at no charge. Expanding our field trips: After restarting our in-person education programs in 2022, we've been building back toward our pre-pandemic field trip numbers. In the 2022-23 school year, 26,567 school children participated in field trips and hands-on programs in our Learning Labs. We're excited to continue to welcome more students to the Aquarium in the coming months. Teen Conservation Leaders are making a difference: In 2023, we offered our time-tested service-learning program for high school students, Teen Conservation Leaders. For the first time since the pandemic, we were able to enroll new students as well as serve continuing participants. Throughout summer and during the school year, students volunteer at the Aquarium, interacting with guests on the floor and contributing to behind-the-scenes efforts - making it an exciting summer for us and for Teen Conservation Leaders. Supporting our future ocean stewards: In 2023, we welcomed 23 paid interns across many Aquarium departments, from applied water science and sea otter care and research, to marketing, husbandry, campus management, education, film and video production, and guest experience. Our interns supported our teams as they completed projects of their own - from an investigation into the changing composition of sea otter diets to a deep dive into new ways to make the Aquarium more inclusive for LGBTQ+ folk. Our four Diversity, Equity, and Inclusion veterinary externs worked with Dr. Mike Murray and his Animal Care team as they progressed toward veterinary careers. First Shultz Scholarships awarded: In May, we launched the George P. Shultz Future Leaders Scholarship Fund. This donor-endowed program supports students from nearby communities that are historically underrepresented in the science and conservation fields. The scholarship honors the memory of George P. Shultz, who chaired the Aquarium's Leadership Council, served on our Board of Trustees, and enjoyed a long career in public service. Each Shultz Scholarship provides not only full tuition but also room and board and all other expenses, to attend California State University, Monterey Bay. The recipients participated in paid internships at the Aquarium during the summer of 2023 before beginning their academic journey in the fall. With donor support, we plan to offer the scholarship annually. Launching a new youth program: Ocean Learning Adventures: During the summer we offered a brand-new education program for middle-school students, Ocean Learning Adventures. The weeklong camp encourages girls, boys, and gender-fluid youth to connect to the natural world around them through adventures and activities. Teens kayak in Elkhorn Slough and learn about the watershed; they spend time at our Kelp Forest exhibit learning about the interconnected web of life inside a kelp forest; they surface scuba dive in our Great Tide Pool, exploring an intertidal environment full of hermit crabs, urchins, and anemones. Teens also participate in engineering challenges in our Bechtel Family Center for Ocean Education and Leadership. Students learn basic engineering skills and concepts while incorporating ocean conservation learning into their projects. Ocean Learning Adventures is presented bilingually, in English and in Spanish. To make it more accessible, we offer free transportation for participants from Watsonville, Marina, and Seaside.	Desc

Prog Srvc Accom Acty3 ProgSrvcAccomActy3Grp

Field	Value	IRS element (for citing)
Expense	$11,760,995	ExpenseAmt
Grant	$14,000	GrantAmt
Revenue	$523,125	RevenueAmt
Desc	Conservation and Science costs of $11,760,995 represent expenses for marine policy and advocacy efforts, the global Seafood Watch program, and field research. In California, we're continuing our leading role in the research, rescue, and recovery of southern sea otters. At the state and federal levels, we're advancing policies to protect vulnerable coastal habitats, reduce plastic pollution, and promote ocean-based climate solutions. Around the world, we're transforming the seafood industry by engaging seafood producers, businesses, and governments, informing seafood purchasing standards, and rating the sustainability of fishing and aquaculture practices. Rescuing and rehabilitating southern sea otters: In 2001, our Sea Otter Program pioneered the use of surrogacy - pairing a stranded otter pup with an adult female otter in our long-term care - to help young otters acquire the skills needed to thrive in the wild. This year, we published a paper describing and evaluating our surrogacy methods, including everything from rescue response, pairing stranded sea otter pups with our resident female sea otters, and the release of the rescued otters. This publication emphasizes the pivotal role our unique surrogacy program plays in the successful return of young sea otters to the wild and demonstrates how robustly the program addresses the variety of challenges every rescued sea otter face. Sharing our findings is an important way to inform colleagues about our successful methods and an exciting milestone as we work toward the recovery of this threatened species. In June, we returned three surrogate-raised otters to the wild, marking the highest number of surrogate-raised otters we've released at the same time in the history of our program. Our team spent two weeks tracking the otters by land, sea, and air to ensure each sea otter successfully used the skills they learned from their surrogate mother to reacclimate to the kelp forests of Monterey Bay. And we continued to develop partnerships with other accredited aquariums so that in the future they can employ the surrogacy method we pioneered to expand our collective capacity to raise and release rescued sea otter pups. Exploring all the benefits sea otters provide: Sea otters have long been recognized for playing a key role in maintaining the health of productive kelp forests. Otters eat sea urchins and other animals that graze on giant kelp, keeping the urchin population under control and enabling a thriving kelp ecosystem. A new paper, published by researchers at the Aquarium and Middlebury Institute of International Studies' Center for the Blue Economy, found that otters have a role to play in building local economies as well. As recreational visitors came to enjoy Elkhorn Slough, an estuary in Monterey Bay that is home to nearly 100 sea otters, they highly valued the ability to view sea otters in the wild. These visitors contribute an estimated $3 million in annual revenue to local coastal communities. Growing our program's capacity: In order to grow our Sea Otter Program, we've begun construction of our own Sea Otter Rehabilitation and Surrogacy Facility, which will provide both on-site holding pools and isolated ICU troughs for rescued otters - allowing our team to work toward expanding our capacity to rescue, rehabilitate, and release more otters. As sea otters continue to expand into their historical range, either through natural means or reintroduction efforts, our 2023 work highlights the benefits of their recovery for ecosystems and economies alike. Speaking out globally about plastic pollution policy: The Monterey Bay Aquarium continues to be a prominent and respected voice in the fight against plastic pollution both internationally and here at home. Chief Conservation and Science Officer Margaret Spring co-authored the 2023 report of the Minderoo-Monaco Commission on Plastics and Human Health and its chapter on social and environmental justice. She briefed global negotiators and the Biden-Harris Administration on its findings and recommendations regarding the harmful impacts of plastic on human health throughout its lifecycle, from production to disposal. She especially focused on the impact on vulnerable groups. The briefing included a call for a stronger U.S. plastic strategy domestically and in negotiations for an ambitious Global Plastic Treaty. A voice for the ocean in Washington, D.C.: In November, Executive Director Julie Packard brought the ocean to Washington, D.C. in a series of events that engaged legislators and staff on Capitol Hill, a full-house audience at the National Portrait Gallery, and key national and international journalists. Her appearances underscored the influence the Aquarium brings as a thought leader on crucial ocean issues. Julie partnered with the Benioff Ocean Institute, The Pew Charitable Trusts, and Earthjustice to introduce an expert panel that briefed Congressional staff on the threats posed by seabed mining. Later, Julie spoke at the State Department Foreign Press Center ahead of the COP28 climate negotiations, emphasizing the ocean's role as our primary defense against climate change. At the National Portrait Gallery, she joined environmental leaders Dolores Huerta, Dr. Dorceta Taylor, and Wawa Gatheru in a conversation moderated by NPR journalist Emily Kwong addressing the importance of environmental justice and climate action in shaping the future of the environmental movement. Consumer tools for sustainable seafood: Our consumer-facing sustainability ratings and outreach work over the past 25 years have helped build strong awareness and demand for sustainable seafood. When consumers ask for sustainable seafood, they prompt businesses to seek out sustainable options from suppliers and drive significant changes in how seafood is caught and farmed. That's why we continue to improve our consumer tools, to make our recommendations easier to understand and more accessible to use. Over the last year, we've developed digital versions of our popular National and West Coast pocket guides in both English and Spanish. In response to the demand for easy-to-use, species-centered information, we've created species guides to provide in-depth information about how and where to find sustainable options for some of the most popular seafood items served in the U.S. We've created guides for salmon, shrimp, tuna, shellfish, catfish, cod, crab, and mahi mahi.	Desc

Field	Value	IRS element (for citing)
Total Program Service Expenses	$89,017,731	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	false	DonorAdvisedFundInd
Conservation Easements	false	ConservationEasementsInd
Collections Of Art	false	CollectionsOfArtInd
Credit Counseling	false	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	Yes (true)	IndependentAuditFinclStmtInd
Consolidated Audit Fincl Stmt	false	ConsolidatedAuditFinclStmtInd
School Operating	false	SchoolOperatingInd
Foreign Office	false	ForeignOfficeInd
Foreign Activities	Yes (true)	ForeignActivitiesInd
More Than5000 K To Org	Yes (true)	MoreThan5000KToOrgInd
More Than5000 K To Individuals	false	MoreThan5000KToIndividualsInd
Professional Fundraising	Yes (true)	ProfessionalFundraisingInd
Fundraising Activities	Yes (true)	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	false	TaxExemptBondsInd
Engaged In Excess Benefit Trans	false	EngagedInExcessBenefitTransInd
PY Excess Benefit Trans	false	PYExcessBenefitTransInd
Loan Outstanding	false	LoanOutstandingInd
Grant To Related Person	false	GrantToRelatedPersonInd
Business Rln With Org Mem	false	BusinessRlnWithOrgMemInd
Business Rln With Fam Mem	false	BusinessRlnWithFamMemInd
Business Rln With35 Ctrl Ent	false	BusinessRlnWith35CtrlEntInd
Deductible Non Cash Contri	Yes (true)	DeductibleNonCashContriInd
Deductible Art Contribution	false	DeductibleArtContributionInd
Terminate Operations	false	TerminateOperationsInd
Partial Liquidation	false	PartialLiquidationInd
Disregarded Entity	false	DisregardedEntityInd
Related Entity	false	RelatedEntityInd
Related Organization Ctrl Ent	false	RelatedOrganizationCtrlEntInd
Trnsfr Exmpt Non Chrtbl Rltd Org	false	TrnsfrExmptNonChrtblRltdOrgInd
Activities Conducted Prtshp	false	ActivitiesConductedPrtshpInd
Schedule O Required	Yes (true)	ScheduleORequiredInd
IRP Document	167	IRPDocumentCnt
IRP Document W2 G	0	IRPDocumentW2GCnt
Backup Wthld Compliance	Yes (true)	BackupWthldComplianceInd
Employee	610	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	false	ForeignFinancialAccountInd
Prohibited Tax Shelter Trans	false	ProhibitedTaxShelterTransInd
Taxable Party Notification	false	TaxablePartyNotificationInd
Nondeductible Contributions	false	NondeductibleContributionsInd
Quid Pro Quo Contributions	Yes (true)	QuidProQuoContributionsInd
Quid Pro Quo Contri Discl	Yes (true)	QuidProQuoContriDisclInd
Form8282 Property Disposed Of	false	Form8282PropertyDisposedOfInd
Rcv Fnds To Pay Prsnl Bnft Cntrct	false	RcvFndsToPayPrsnlBnftCntrctInd
Pay Premiums Prsnl Bnft Cntrct	false	PayPremiumsPrsnlBnftCntrctInd
Indoor Tanning Services	false	IndoorTanningServicesInd
Subj To Tax Rmnrtn Ex Prcht Pymt	false	SubjToTaxRmnrtnExPrchtPymtInd
Subject To Excs Tax Net Invst Inc	false	SubjectToExcsTaxNetInvstIncInd
Info In Schedule O Part VI	Yes (X)	InfoInScheduleOPartVIInd
Governing Body Voting Members	16	GoverningBodyVotingMembersCnt
Independent Voting Member	15	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
Own Website	Yes (X)	OwnWebsiteInd
Upon Request	Yes (X)	UponRequestInd

Books In Care Of Detail BooksInCareOfDetail

Business Name BusinessName

Field	Value	IRS element (for citing)
Business Name Line1	Ann Marie Nemanich	BusinessNameLine1Txt

Field	Value	IRS element (for citing)
Phone	8316484800	PhoneNum

US Address USAddress

Field	Value	IRS element (for citing)
Address Line1	886 Cannery Row	AddressLine1Txt
City	Monterey	CityNm
State Abbreviation	CA	StateAbbreviationCd
ZIP	93940	ZIPCd

Form990 Part VII Section A Form990PartVIISectionAGrp (39 entries)

TitleTitleTxt	Average Hours Per WeekAverageHoursPerWeekRt	Individual Trustee Or DirectorIndividualTrusteeOrDirectorInd	OfficerOfficerInd	Reportable Comp From OrgReportableCompFromOrgAmt	Reportable Comp From Rltd OrgReportableCompFromRltdOrgAmt	Other CompensationOtherCompensationAmt	Key EmployeeKeyEmployeeInd	Highest Compensated EmployeeHighestCompensatedEmployeeInd
Julie Packard
Executive Director	28.0	Yes (X)	Yes (X)	$399,916	$0	$44,604
Stephen C Neal
Chairman (thru June 2023) / Trustee	1.0	Yes (X)	Yes (X)	$0	$0	$0
Tegan Acton
Trustee / Chairman (beg June 2023)	1.0	Yes (X)	Yes (X)	$0	$0	$0
Ben Jealous
Trustee (Beg June 2023, thru Nov 2023)	1.0	Yes (X)		$0	$0	$0
Caroline Getty
Trustee	1.0	Yes (X)		$0	$0	$0
Chris Scholin
Ex-Officio Trustee	1.0	Yes (X)		$0	$0	$0
Connie Martinez
Trustee (thru June 2023)	1.0	Yes (X)		$0	$0	$0
Eric Jensen
Trustee (beg Mar 2023)	1.0	Yes (X)		$0	$0	$0
Gideon Yu
Trustee	1.0	Yes (X)		$0	$0	$0
Greg Silverman
Trustee	1.0	Yes (X)		$0	$0	$0
Lisa White
Trustee	1.0	Yes (X)		$0	$0	$0
Louise Stephens
Trustee	1.0	Yes (X)		$0	$0	$0
Mark Wan
Trustee	1.0	Yes (X)		$0	$0	$0
Martha Martinez
Trustee	1.0	Yes (X)		$0	$0	$0
Michael Mantell
Trustee	1.0	Yes (X)		$0	$0	$0
Mike Gupta
Trustee	1.0	Yes (X)		$0	$0	$0
MRC Greenwood
Trustee	1.0	Yes (X)		$0	$0	$0
Pietro Parravano
Trustee (thru June 2023)	1.0	Yes (X)		$0	$0	$0
Samantha Campbell
Trustee (thru Sept 2023)	1.0	Yes (X)		$0	$0	$0
Susan Orr
Trustee	1.0	Yes (X)		$0	$0	$0
William Landreth
Trustee (thru June 2023)	1.0	Yes (X)		$0	$0	$0
Ann Marie Nemanich
Chief Financial Officer (beg Feb 2023)	40.0		Yes (X)	$285,068	$0	$20,800
Armando Vidal-Arata
Exec. Office Ops Mgr	40.0		Yes (X)	$82,881	$0	$17,461
Barbara Wright
Secretary	1.0		Yes (X)	$0	$0	$0
Bradley Rutherford
Exec. VP and Deputy Dir. (Beg Nov 2023)	40.0		Yes (X)	$66,283	$0	$0
Cynthia Vernon
Chief Operating Officer (thru Jan 2023)	40.0		Yes (X)	$95,020	$0	$12,787
Karin I Kiessling
Board & Exec Office Sr Mg	40.0		Yes (X)	$112,533	$0	$20,045
Robert T Young
VP of Finance	40.0		Yes (X)	$281,093	$0	$56,644
Christina Fekeci
Chief Development Officer	40.0			$396,707	$0	$45,141	Yes (X)
Dana M Allen-Greil
Chief Marketing Officer	40.0			$242,202	$0	$57,487	Yes (X)
Jon Hoech
VP of Animal Care	40.0			$219,817	$0	$41,800	Yes (X)
Margaret Spring
Chief Conservation&Sci Officer	40.0			$252,510	$0	$46,810	Yes (X)
Mary Beth Redmond-Jones
VP of Exhibitions	40.0			$209,752	$0	$20,711	Yes (X)
Teresa J Merry
Chief Human Resources Officer	40.0			$238,213	$0	$43,187	Yes (X)
Aimee L David
VP US & CA Ocean Conservation	40.0			$197,625	$0	$29,195		Yes (X)
Ann Dabovich
VP of Gift Planning	40.0			$201,807	$0	$29,250		Yes (X)
David E Rosenberg
VP of Guest Experience	40.0			$193,155	$0	$16,607		Yes (X)
Jennifer Dianto Kemmerly
VP of Global Ocean Initiatives	40.0			$221,466	$0	$34,495		Yes (X)
Pauline J Parrish
Controller	40.0			$210,869	$0	$24,228		Yes (X)

Field	Value	IRS element (for citing)
Total Reportable Comp From Org	$3,906,917	TotalReportableCompFromOrgAmt
Tot Reportable Comp Rltd Org	$0	TotReportableCompRltdOrgAmt
Total Other Compensation	$561,252	TotalOtherCompensationAmt
Indiv Rcvd Greater Than100 K	109	IndivRcvdGreaterThan100KCnt
Former Ofcr Employees Listed	false	FormerOfcrEmployeesListedInd
Total Comp Greater Than150 K	Yes (true)	TotalCompGreaterThan150KInd
Compensation From Other Srcs	false	CompensationFromOtherSrcsInd

Contractor Compensation ContractorCompensationGrp (5 entries)

Address Line1ContractorAddress/USAddress/AddressLine1Txt	Address Line2ContractorAddress/USAddress/AddressLine2Txt	CityContractorAddress/USAddress/CityNm	State AbbreviationContractorAddress/USAddress/StateAbbreviationCd	ZIPContractorAddress/USAddress/ZIPCd	ServicesServicesDesc	CompensationCompensationAmt
Blach Construction Company
2244 Blach Place	Suite 100	San Jose	CA	95131	Construction	$7,207,737
Service Systems Associates Inc
4624 Central Park Blvd	Suite 100	Denver	CO	80238	Retail and Culinary Service	$4,141,505
Impacts Research
1048 Sinclair Pointe		St Simons Island	GA	31522	Advertising	$3,713,756
Power Engineering Company
1501 Viking Street	Suite 200	Alameda	CA	94501	Construction	$3,055,183
John F Otto Inc dba Otto Construction
2150 Garden Rd A1		Monterey	CA	93940	Construction	$1,697,262

Field	Value	IRS element (for citing)
Cntrct Rcvd Greater Than100 K	74	CntrctRcvdGreaterThan100KCnt
Membership Dues	$13,668,686	MembershipDuesAmt
Fundraising	$2,444,614	FundraisingAmt
Government Grants	$304,163	GovernmentGrantsAmt
All Other Contributions	$54,491,087	AllOtherContributionsAmt
Noncash Contributions	$4,809,575	NoncashContributionsAmt
Total Contributions	$70,908,550	TotalContributionsAmt

Program Service Revenue ProgramServiceRevenueGrp (2 entries)

DescDesc	BusinessBusinessCd	Total Revenue ColumnTotalRevenueColumnAmt	Related Or Exempt Func IncomeRelatedOrExemptFuncIncomeAmt
Admission fees	611600	$63,034,775	$63,034,775
Other Program Revenue	900099	$7,406,999	$7,406,999

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	$70,441,774	TotalProgramServiceRevenueAmt

Investment Income InvestmentIncomeGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$11,816,410	TotalRevenueColumnAmt
Unrelated Business Revenue	$1,727	UnrelatedBusinessRevenueAmt
Exclusion	$11,814,683	ExclusionAmt

Gross Rents GrossRentsGrp

Field	Value	IRS element (for citing)
Real	$1,406,725	RealAmt

Less Rental Expenses LessRentalExpensesGrp

Field	Value	IRS element (for citing)
Real	$1,020,582	RealAmt

Rental Income Or Loss RentalIncomeOrLossGrp

Field	Value	IRS element (for citing)
Real	$386,143	RealAmt
Personal	$0	PersonalAmt

Net Rental Income Or Loss NetRentalIncomeOrLossGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$386,143	TotalRevenueColumnAmt
Exclusion	$386,143	ExclusionAmt

Gross Amount Sales Assets GrossAmountSalesAssetsGrp

Field	Value	IRS element (for citing)
Securities	$623,728,000	SecuritiesAmt

Less Cost Oth Basis Sales Expnss LessCostOthBasisSalesExpnssGrp

Field	Value	IRS element (for citing)
Securities	$621,839,405	SecuritiesAmt
Other	$21,833	OtherAmt

Gain Or Loss GainOrLossGrp

Field	Value	IRS element (for citing)
Securities	$1,888,595	SecuritiesAmt
Other	-$21,833	OtherAmt

Net Gain Or Loss Investments NetGainOrLossInvestmentsGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$1,866,762	TotalRevenueColumnAmt
Unrelated Business Revenue	$147,178	UnrelatedBusinessRevenueAmt
Exclusion	$1,719,584	ExclusionAmt

Field	Value	IRS element (for citing)
Fundraising Gross Income	$35,128	FundraisingGrossIncomeAmt
Contri Rpt Fundraising Event	$2,444,614	ContriRptFundraisingEventAmt
Fundraising Direct Expenses	$589,340	FundraisingDirectExpensesAmt

Net Incm From Fundraising Evt NetIncmFromFundraisingEvtGrp

Field	Value	IRS element (for citing)
Total Revenue Column	-$554,212	TotalRevenueColumnAmt
Exclusion	-$554,212	ExclusionAmt

Other Revenue Misc OtherRevenueMiscGrp (2 entries)

DescDesc	BusinessBusinessCd	Total Revenue ColumnTotalRevenueColumnAmt	Related Or Exempt Func IncomeRelatedOrExemptFuncIncomeAmt	Unrelated Business RevenueUnrelatedBusinessRevenueAmt
Licensing Revenue	900099	$523,125	$523,125
PARKING REVENUE	812930	$517,345	$363,205	$154,140

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	$1,040,470	OtherRevenueTotalAmt

Total Revenue TotalRevenueGrp

Field	Value	IRS element (for citing)
Total Revenue Column	$155,905,897	TotalRevenueColumnAmt
Related Or Exempt Func Income	$71,328,104	RelatedOrExemptFuncIncomeAmt
Unrelated Business Revenue	$303,045	UnrelatedBusinessRevenueAmt
Exclusion	$13,366,198	ExclusionAmt

Grants To Domestic Orgs GrantsToDomesticOrgsGrp

Field	Value	IRS element (for citing)
Total	$604,365	TotalAmt
Program Services	$604,365	ProgramServicesAmt

Grants To Domestic Individuals GrantsToDomesticIndividualsGrp

Field	Value	IRS element (for citing)
Total	$93,831	TotalAmt
Program Services	$93,831	ProgramServicesAmt

Foreign Grants ForeignGrantsGrp

Field	Value	IRS element (for citing)
Total	$35,755	TotalAmt
Program Services	$35,755	ProgramServicesAmt

Comp Current Ofcr Directors CompCurrentOfcrDirectorsGrp

Field	Value	IRS element (for citing)
Total	$3,309,472	TotalAmt
Program Services	$1,219,725	ProgramServicesAmt
Management And General	$1,558,995	ManagementAndGeneralAmt
Fundraising	$530,752	FundraisingAmt

Other Salaries And Wages OtherSalariesAndWagesGrp

Field	Value	IRS element (for citing)
Total	$41,007,575	TotalAmt
Program Services	$34,461,425	ProgramServicesAmt
Management And General	$3,902,036	ManagementAndGeneralAmt
Fundraising	$2,644,114	FundraisingAmt

Pension Plan Contributions PensionPlanContributionsGrp

Field	Value	IRS element (for citing)
Total	$2,639,707	TotalAmt
Program Services	$2,194,089	ProgramServicesAmt
Management And General	$277,723	ManagementAndGeneralAmt
Fundraising	$167,895	FundraisingAmt

Other Employee Benefits OtherEmployeeBenefitsGrp

Field	Value	IRS element (for citing)
Total	$5,966,051	TotalAmt
Program Services	$4,958,901	ProgramServicesAmt
Management And General	$627,686	ManagementAndGeneralAmt
Fundraising	$379,464	FundraisingAmt

Payroll Taxes PayrollTaxesGrp

Field	Value	IRS element (for citing)
Total	$3,209,473	TotalAmt
Program Services	$2,667,671	ProgramServicesAmt
Management And General	$337,668	ManagementAndGeneralAmt
Fundraising	$204,134	FundraisingAmt

Fees For Services Legal FeesForServicesLegalGrp

Field	Value	IRS element (for citing)
Total	$935,011	TotalAmt
Program Services	$616,383	ProgramServicesAmt
Management And General	$297,693	ManagementAndGeneralAmt
Fundraising	$20,935	FundraisingAmt

Fees For Services Accounting FeesForServicesAccountingGrp

Field	Value	IRS element (for citing)
Total	$144,000	TotalAmt
Management And General	$144,000	ManagementAndGeneralAmt

Fees For Services Lobbying FeesForServicesLobbyingGrp

Field	Value	IRS element (for citing)
Total	$227,515	TotalAmt
Program Services	$227,515	ProgramServicesAmt

Fees For Services Prof Fundraising FeesForServicesProfFundraising

Field	Value	IRS element (for citing)
Total	$132,349	TotalAmt
Fundraising	$132,349	FundraisingAmt

Fees For Srvc Invst Mgmnt Fees FeesForSrvcInvstMgmntFeesGrp

Field	Value	IRS element (for citing)
Total	$1,379,969	TotalAmt
Management And General	$1,379,969	ManagementAndGeneralAmt

Fees For Services Other FeesForServicesOtherGrp

Field	Value	IRS element (for citing)
Total	$10,854,032	TotalAmt
Program Services	$8,430,381	ProgramServicesAmt
Management And General	$1,127,837	ManagementAndGeneralAmt
Fundraising	$1,295,814	FundraisingAmt

Advertising AdvertisingGrp

Field	Value	IRS element (for citing)
Total	$7,203,368	TotalAmt
Program Services	$7,194,926	ProgramServicesAmt
Management And General	$8,442	ManagementAndGeneralAmt

Office Expenses OfficeExpensesGrp

Field	Value	IRS element (for citing)
Total	$2,932,002	TotalAmt
Program Services	$2,498,863	ProgramServicesAmt
Management And General	$47,242	ManagementAndGeneralAmt
Fundraising	$385,897	FundraisingAmt

Information Technology InformationTechnologyGrp

Field	Value	IRS element (for citing)
Total	$5,469,946	TotalAmt
Program Services	$4,868,128	ProgramServicesAmt
Management And General	$563,298	ManagementAndGeneralAmt
Fundraising	$38,520	FundraisingAmt

Royalties RoyaltiesGrp

Field	Value	IRS element (for citing)
Total	$32,420	TotalAmt
Program Services	$32,420	ProgramServicesAmt

Occupancy OccupancyGrp

Field	Value	IRS element (for citing)
Total	$7,588,598	TotalAmt
Program Services	$6,669,199	ProgramServicesAmt
Management And General	$522,988	ManagementAndGeneralAmt
Fundraising	$396,411	FundraisingAmt

Travel TravelGrp

Field	Value	IRS element (for citing)
Total	$1,814,465	TotalAmt
Program Services	$1,537,664	ProgramServicesAmt
Management And General	$216,921	ManagementAndGeneralAmt
Fundraising	$59,880	FundraisingAmt

Conferences Meetings ConferencesMeetingsGrp

Field	Value	IRS element (for citing)
Total	$108,767	TotalAmt
Program Services	$101,917	ProgramServicesAmt
Management And General	$4,398	ManagementAndGeneralAmt
Fundraising	$2,452	FundraisingAmt

Depreciation Depletion DepreciationDepletionGrp

Field	Value	IRS element (for citing)
Total	$11,837,562	TotalAmt
Program Services	$9,569,491	ProgramServicesAmt
Management And General	$2,247,489	ManagementAndGeneralAmt
Fundraising	$20,582	FundraisingAmt

Insurance InsuranceGrp

Field	Value	IRS element (for citing)
Total	$957,661	TotalAmt
Program Services	$906,992	ProgramServicesAmt
Management And General	$44,671	ManagementAndGeneralAmt
Fundraising	$5,998	FundraisingAmt

Other Expenses OtherExpensesGrp

Field	Value	IRS element (for citing)
Desc	Sponsorship and Gifts	Desc
Total	$286,958	TotalAmt
Program Services	$128,090	ProgramServicesAmt
Management And General	$152,578	ManagementAndGeneralAmt
Fundraising	$6,290	FundraisingAmt

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	$108,770,852	TotalAmt
Program Services	$89,017,731	ProgramServicesAmt
Management And General	$13,461,634	ManagementAndGeneralAmt
Fundraising	$6,291,487	FundraisingAmt

Cash Non Interest Bearing CashNonInterestBearingGrp

Field	Value	IRS element (for citing)
BOY	$9,922,459	BOYAmt
EOY	$11,267,067	EOYAmt

Savings And Temp Cash Invst SavingsAndTempCashInvstGrp

Field	Value	IRS element (for citing)
BOY	$31,914,955	BOYAmt
EOY	$55,987,009	EOYAmt

Pledges And Grants Receivable PledgesAndGrantsReceivableGrp

Field	Value	IRS element (for citing)
BOY	$11,849,919	BOYAmt
EOY	$21,631,281	EOYAmt

Accounts Receivable AccountsReceivableGrp

Field	Value	IRS element (for citing)
BOY	$2,799,106	BOYAmt
EOY	$3,782,786	EOYAmt

Receivables From Officers Etc ReceivablesFromOfficersEtcGrp

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

Rcvbl From Disqualified Prsn RcvblFromDisqualifiedPrsnGrp

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

Prepaid Expenses Defrd Charges PrepaidExpensesDefrdChargesGrp

Field	Value	IRS element (for citing)
BOY	$1,735,608	BOYAmt
EOY	$2,260,191	EOYAmt

Field	Value	IRS element (for citing)
Land Bldg Equip Cost Or Other Bss	$405,416,135	LandBldgEquipCostOrOtherBssAmt
Land Bldg Equip Accum Deprec	$214,029,674	LandBldgEquipAccumDeprecAmt

Land Bldg Equip Basis Net LandBldgEquipBasisNetGrp

Field	Value	IRS element (for citing)
BOY	$182,464,365	BOYAmt
EOY	$191,386,461	EOYAmt

Investments Pub Traded Sec InvestmentsPubTradedSecGrp

Field	Value	IRS element (for citing)
BOY	$270,266,631	BOYAmt
EOY	$256,673,000	EOYAmt

Investments Other Securities InvestmentsOtherSecuritiesGrp

Field	Value	IRS element (for citing)
BOY	$148,562,546	BOYAmt
EOY	$191,572,764	EOYAmt

Investments Program Related InvestmentsProgramRelatedGrp

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

Other Assets Total OtherAssetsTotalGrp

Field	Value	IRS element (for citing)
BOY	$4,432,034	BOYAmt
EOY	$4,963,855	EOYAmt

Total Assets TotalAssetsGrp

Field	Value	IRS element (for citing)
BOY	$663,947,623	BOYAmt
EOY	$739,524,414	EOYAmt

Accounts Payable Accr Expnss AccountsPayableAccrExpnssGrp

Field	Value	IRS element (for citing)
BOY	$12,950,075	BOYAmt
EOY	$15,335,864	EOYAmt

Deferred Revenue DeferredRevenueGrp

Field	Value	IRS element (for citing)
BOY	$8,673,623	BOYAmt
EOY	$8,837,495	EOYAmt

Loans From Officers Directors LoansFromOfficersDirectorsGrp

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

Other Liabilities OtherLiabilitiesGrp

Field	Value	IRS element (for citing)
BOY	$154,371	BOYAmt
EOY	$145,879	EOYAmt

Total Liabilities TotalLiabilitiesGrp

Field	Value	IRS element (for citing)
BOY	$21,778,069	BOYAmt
EOY	$24,319,238	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	$563,981,612	BOYAmt
EOY	$626,057,048	EOYAmt

Donor Restriction Net Assets DonorRestrictionNetAssetsGrp

Field	Value	IRS element (for citing)
BOY	$78,187,942	BOYAmt
EOY	$89,148,128	EOYAmt

Total Net Assets Fund Balance TotalNetAssetsFundBalanceGrp

Field	Value	IRS element (for citing)
BOY	$642,169,554	BOYAmt
EOY	$715,205,176	EOYAmt

Tot Liab Net Assets Fund Balance TotLiabNetAssetsFundBalanceGrp

Field	Value	IRS element (for citing)
BOY	$663,947,623	BOYAmt
EOY	$739,524,414	EOYAmt

Field	Value	IRS element (for citing)
Info In Schedule O Part XI	Yes (X)	InfoInScheduleOPartXIInd
Reconcilation Revenue Expnss	$47,135,045	ReconcilationRevenueExpnssAmt
Net Unrlzd Gains Losses Invst	$25,997,662	NetUnrlzdGainsLossesInvstAmt
Donated Services And Use Fclts	$33,184	DonatedServicesAndUseFcltsAmt
Other Changes In Net Assets	-$130,269	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)
Separate Basis Fincl Stmt	Yes (X)	SeparateBasisFinclStmtInd

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

Schedule A IRS990ScheduleA

Field	Value	IRS element (for citing)
Public Organization170	Yes (X)	PublicOrganization170Ind

Gifts Grants Contri Rcvd170 GiftsGrantsContriRcvd170Grp

Field	Value	IRS element (for citing)
Current Tax Year Minus4 Years	$61,820,387	CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years	$67,321,983	CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years	$60,269,366	CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year	$65,111,538	CurrentTaxYearMinus1YearAmt
Current Tax Year	$70,908,550	CurrentTaxYearAmt
Total	$325,431,824	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	$61,820,387	CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years	$67,321,983	CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years	$60,269,366	CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year	$65,111,538	CurrentTaxYearMinus1YearAmt
Current Tax Year	$70,908,550	CurrentTaxYearAmt
Total	$325,431,824	TotalAmt

Field	Value	IRS element (for citing)
Substantial Contributors Tot	$52,684,122	SubstantialContributorsTotAmt
Public Support Total170	$272,747,702	PublicSupportTotal170Amt

Gross Investment Income170 GrossInvestmentIncome170Grp

Field	Value	IRS element (for citing)
Current Tax Year Minus4 Years	$3,856,805	CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years	$1,485,246	CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years	$681,088	CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year	$4,784,906	CurrentTaxYearMinus1YearAmt
Current Tax Year	$13,223,135	CurrentTaxYearAmt
Total	$24,031,180	TotalAmt

Unrelated Business Net Incm170 UnrelatedBusinessNetIncm170Grp

Field	Value	IRS element (for citing)
Current Tax Year Minus4 Years	$960	CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years	$110,732	CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years	$15,936	CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year	$552	CurrentTaxYearMinus1YearAmt
Current Tax Year	$40,704	CurrentTaxYearAmt
Total	$168,884	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	$349,631,888	TotalSupportAmt
Gross Receipts Rltd Activities	$229,080,658	GrossReceiptsRltdActivitiesAmt
Public Support CY170	0.7801	PublicSupportCY170Pct
Public Support PY170	0.8131	PublicSupportPY170Pct
Thirty Thr Pct Suprt Tests CY170	Yes (X)	ThirtyThrPctSuprtTestsCY170Ind

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

Total Grassroots Lobbying TotalGrassrootsLobbyingGrp

Field	Value	IRS element (for citing)
Filing Organizations Total	$0	FilingOrganizationsTotalAmt
Affiliated Group Total	$0	AffiliatedGroupTotalAmt

Total Direct Lobbying TotalDirectLobbyingGrp

Field	Value	IRS element (for citing)
Filing Organizations Total	$227,515	FilingOrganizationsTotalAmt
Affiliated Group Total	$0	AffiliatedGroupTotalAmt

Total Lobbying Expend TotalLobbyingExpendGrp

Field	Value	IRS element (for citing)
Filing Organizations Total	$227,515	FilingOrganizationsTotalAmt
Affiliated Group Total	$0	AffiliatedGroupTotalAmt

Other Exempt Purpose Expend OtherExemptPurposeExpendGrp

Field	Value	IRS element (for citing)
Filing Organizations Total	$88,790,216	FilingOrganizationsTotalAmt
Affiliated Group Total	$0	AffiliatedGroupTotalAmt

Total Exempt Purpose Expend TotalExemptPurposeExpendGrp

Field	Value	IRS element (for citing)
Filing Organizations Total	$89,017,731	FilingOrganizationsTotalAmt
Affiliated Group Total	$0	AffiliatedGroupTotalAmt

Lobbying Nontaxable Amount LobbyingNontaxableAmountGrp

Field	Value	IRS element (for citing)
Filing Organizations Total	$1,000,000	FilingOrganizationsTotalAmt
Affiliated Group Total	$0	AffiliatedGroupTotalAmt

Grassroots Nontaxable GrassrootsNontaxableGrp

Field	Value	IRS element (for citing)
Filing Organizations Total	$250,000	FilingOrganizationsTotalAmt
Affiliated Group Total	$0	AffiliatedGroupTotalAmt

Tot Lbbyng Grassroot Mns Non Tx TotLbbyngGrassrootMnsNonTxGrp

Field	Value	IRS element (for citing)
Filing Organizations Total	$0	FilingOrganizationsTotalAmt
Affiliated Group Total	$0	AffiliatedGroupTotalAmt

Tot Lbby Expend Mns Lbbyng Non Tx TotLbbyExpendMnsLbbyngNonTxGrp

Field	Value	IRS element (for citing)
Filing Organizations Total	$0	FilingOrganizationsTotalAmt
Affiliated Group Total	$0	AffiliatedGroupTotalAmt

Avg Lobbying Nontaxable Amount AvgLobbyingNontaxableAmountGrp

Field	Value	IRS element (for citing)
Current Year Minus3	$1,000,000	CurrentYearMinus3Amt
Current Year Minus2	$1,000,000	CurrentYearMinus2Amt
Current Year Minus1	$1,000,000	CurrentYearMinus1Amt
Current Year	$1,000,000	CurrentYearAmt
Total	$4,000,000	TotalAmt

Field	Value	IRS element (for citing)
Lobbying Ceiling	$6,000,000	LobbyingCeilingAmt

Avg Total Lobbying Expend AvgTotalLobbyingExpendGrp

Field	Value	IRS element (for citing)
Current Year Minus3	$128,075	CurrentYearMinus3Amt
Current Year Minus2	$134,425	CurrentYearMinus2Amt
Current Year Minus1	$239,889	CurrentYearMinus1Amt
Current Year	$227,515	CurrentYearAmt
Total	$729,904	TotalAmt

Avg Grassroots Nontaxable AvgGrassrootsNontaxableGrp

Field	Value	IRS element (for citing)
Current Year Minus3	$250,000	CurrentYearMinus3Amt
Current Year Minus2	$250,000	CurrentYearMinus2Amt
Current Year Minus1	$250,000	CurrentYearMinus1Amt
Current Year	$250,000	CurrentYearAmt
Total	$1,000,000	TotalAmt

Field	Value	IRS element (for citing)
Grassroots Ceiling	$1,500,000	GrassrootsCeilingAmt

Avg Grassroots Lobbying Expend AvgGrassrootsLobbyingExpendGrp

Field	Value	IRS element (for citing)
Current Year Minus3	$0	CurrentYearMinus3Amt
Current Year Minus2	$0	CurrentYearMinus2Amt
Current Year Minus1	$0	CurrentYearMinus1Amt
Current Year	$0	CurrentYearAmt
Total	$0	TotalAmt

Schedule D IRS990ScheduleD

CY Endwmt Fund CYEndwmtFundGrp

Field	Value	IRS element (for citing)
Beginning Year Balance	$291,763,757	BeginningYearBalanceAmt
Contributions	$5,292,000	ContributionsAmt
Investment Earnings Or Losses	$28,882,000	InvestmentEarningsOrLossesAmt
Other Expenditures	-$28,727,000	OtherExpendituresAmt
End Year Balance	$354,664,757	EndYearBalanceAmt

CY Minus1 Yr Endwmt Fund CYMinus1YrEndwmtFundGrp

Field	Value	IRS element (for citing)
Beginning Year Balance	$334,361,757	BeginningYearBalanceAmt
Contributions	$3,768,000	ContributionsAmt
Investment Earnings Or Losses	-$35,661,000	InvestmentEarningsOrLossesAmt
Other Expenditures	$10,705,000	OtherExpendituresAmt
End Year Balance	$291,763,757	EndYearBalanceAmt

CY Minus2 Yr Endwmt Fund CYMinus2YrEndwmtFundGrp

Field	Value	IRS element (for citing)
Beginning Year Balance	$293,525,757	BeginningYearBalanceAmt
Contributions	$3,266,000	ContributionsAmt
Investment Earnings Or Losses	$47,351,000	InvestmentEarningsOrLossesAmt
Other Expenditures	$9,781,000	OtherExpendituresAmt
End Year Balance	$334,361,757	EndYearBalanceAmt

CY Minus3 Yr Endwmt Fund CYMinus3YrEndwmtFundGrp

Field	Value	IRS element (for citing)
Beginning Year Balance	$267,572,483	BeginningYearBalanceAmt
Contributions	$3,869,666	ContributionsAmt
Investment Earnings Or Losses	$31,483,608	InvestmentEarningsOrLossesAmt
Other Expenditures	$9,400,000	OtherExpendituresAmt
End Year Balance	$293,525,757	EndYearBalanceAmt

CY Minus4 Yr Endwmt Fund CYMinus4YrEndwmtFundGrp

Field	Value	IRS element (for citing)
Beginning Year Balance	$233,228,187	BeginningYearBalanceAmt
Contributions	$2,946,556	ContributionsAmt
Investment Earnings Or Losses	$39,997,740	InvestmentEarningsOrLossesAmt
Other Expenditures	$8,600,000	OtherExpendituresAmt
End Year Balance	$267,572,483	EndYearBalanceAmt

Field	Value	IRS element (for citing)
Board Designated Balance EOY	0.857	BoardDesignatedBalanceEOYPct
Prmnnt Endowment Balance EOY	0.103	PrmnntEndowmentBalanceEOYPct
Term Endowment Balance EOY	0.04	TermEndowmentBalanceEOYPct
Endowments Held Unrelated Org	false	EndowmentsHeldUnrelatedOrgInd
Endowments Held Related Org	false	EndowmentsHeldRelatedOrgInd

Land LandGrp

Field	Value	IRS element (for citing)
Other Cost Or Other Basis	$40,510,679	OtherCostOrOtherBasisAmt
Book Value	$40,510,679	BookValueAmt

Buildings BuildingsGrp

Field	Value	IRS element (for citing)
Other Cost Or Other Basis	$227,658,435	OtherCostOrOtherBasisAmt
Depreciation	$127,836,514	DepreciationAmt
Book Value	$99,821,921	BookValueAmt

Equipment EquipmentGrp

Field	Value	IRS element (for citing)
Other Cost Or Other Basis	$42,756,577	OtherCostOrOtherBasisAmt
Depreciation	$34,201,155	DepreciationAmt
Book Value	$8,555,422	BookValueAmt

Other Land Buildings OtherLandBuildingsGrp

Field	Value	IRS element (for citing)
Other Cost Or Other Basis	$94,490,444	OtherCostOrOtherBasisAmt
Depreciation	$51,992,005	DepreciationAmt
Book Value	$42,498,439	BookValueAmt

Field	Value	IRS element (for citing)
Total Book Value Land Buildings	$191,386,461	TotalBookValueLandBuildingsAmt

Other Securities OtherSecuritiesGrp (4 entries)

DescDesc	Book ValueBookValueAmt	Method ValuationMethodValuationCd
Equity Funds	$71,606,250	F
Bond Funds	$6,777,757	F
Hedge Funds	$17,095,006	F
Nonmarketable Investments	$96,093,751	F

Field	Value	IRS element (for citing)
Total Book Value Securities	$191,572,764	TotalBookValueSecuritiesAmt

Other Liabilities Org OtherLiabilitiesOrgGrp (2 entries)

DescDesc	AmtAmt
Gift Annuity Payment Liability	$85,928
Security Deposits from Tenants	$59,951

Field	Value	IRS element (for citing)
Total Liability	$145,879	TotalLiabilityAmt
Footnote Text	Yes (X)	FootnoteTextInd
Total Rev Etc Audited Fincl Stmt	$186,186,879	TotalRevEtcAuditedFinclStmtAmt
Net Unrealized Gains Invst	$25,997,662	NetUnrealizedGainsInvstAmt
Donated Services And Use Fclts	$365,349	DonatedServicesAndUseFcltsAmt
Other Revenue	-$130,269	OtherRevenueAmt
Revenue Not Reported	$26,232,742	RevenueNotReportedAmt
Revenue Subtotal	$159,954,137	RevenueSubtotalAmt
Investment Expenses Not Incld	$1,379,969	InvestmentExpensesNotIncldAmt
Other Revenues Not Included	-$5,428,209	OtherRevenuesNotIncludedAmt
Revenue Not Reported Fincl Stmt	-$4,048,240	RevenueNotReportedFinclStmtAmt
Total Revenue Per Form990	$155,905,897	TotalRevenuePerForm990Amt
Tot Expns Etc Audited Fincl Stmt	$113,151,257	TotExpnsEtcAuditedFinclStmtAmt
Donated Services Use Fclts	$332,165	DonatedServicesUseFcltsAmt
Other Expenses Included	$5,428,209	OtherExpensesIncludedAmt
Expenses Not Reported	$5,760,374	ExpensesNotReportedAmt
Expenses Subtotal	$107,390,883	ExpensesSubtotalAmt
Investment Expenses Not Incld2	$1,379,969	InvestmentExpensesNotIncld2Amt
Other Expenses Not Included	$0	OtherExpensesNotIncludedAmt
Expenses Not Rpt Fincl Stmt	$1,379,969	ExpensesNotRptFinclStmtAmt
Total Expenses Per Form990	$108,770,852	TotalExpensesPerForm990Amt

Supplemental Information Detail SupplementalInformationDetail (5 entries)

Form And Line ReferenceFormAndLineReferenceDesc	ExplanationExplanationTxt
Schedule D, Part V, Line 4 Intended uses of endowment funds	THE EARNINGS OF THE AQUARIUM'S ENDOWMENT FUNDS SUPPORT EDUCATION AND CONSERVATION PROGRAMS AND THE MISSION OF THE AQUARIUM.
Schedule D, Part X, Line 2 FIN 48 (ASC 740) footnote	The Monterey Bay Aquarium Foundation is exempt from federal income tax under Section 501(c)(3) of the Internal Revenue Code; however, it is subject to tax on income unrelated to its exempt purpose, unless that income is otherwise excluded by the Code. The Aquarium is also exempt from California state franchise taxes under Section 23701(d) of the California Revenue and Taxation Code. As of December 31, 2023, management evaluated the Aquarium's tax provisions and concluded that the Aquarium had maintained its tax-exempt status and had taken no material uncertain tax positions that require adjustment to or disclosure in the financial statements.
Schedule D, Part XI, Line 2(d) Other revenues in audited financial statements not in form 990	Unrealized Gain/(Loss) on Interest in Charitable Remainder Trust - -78449 Change in allowance for Uncollectible pledges - -51820
Schedule D, Part XI, Line 4(b) Other revenues in form 990 not in audited financial statements	Rental expenses - -1020582 Fundraising event expenses - -589340 Cost of Goods Sold - -3818287
Schedule D, Part XII, Line 2(d) Other expenses in audited financial statements not in form 990	Rental expenses - 1020582 Fundraising event expenses - 589340 Cost of Goods Sold - 3818287

Schedule F IRS990ScheduleF

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

Account Activities Outside US AccountActivitiesOutsideUSGrp (7 entries)

RegionRegionTxt	Type Of Activities ConductedTypeOfActivitiesConductedTxt	Specific Services ProvidedSpecificServicesProvidedTxt	Region Total ExpendituresRegionTotalExpendituresAmt
Central America and the Caribbean	Program Services	Conferences/Consults	$4,792
Central America and the Caribbean	Investments		$87,153,223
East Asia and the Pacific	Program Services	Conferences/Consults	$15,476
Europe (Including Iceland and Greenland)	Program Services	Conferences/Consults	$79,486
Europe (Including Iceland and Greenland)	Investments		$18,550,478
North America (Canada & Mexico only)	Program Services	Conferences/Consults	$22,430
North America (Canada & Mexico only)	Grantmaking	Research	$35,755

Field	Value	IRS element (for citing)
Subtotal Offices	0	SubtotalOfficesCnt
Subtotal Employees	0	SubtotalEmployeesCnt
Continuation Total Office	0	ContinuationTotalOfficeCnt
Continuation Total Employee	0	ContinuationTotalEmployeeCnt
Total Office	0	TotalOfficeCnt
Total Employee	0	TotalEmployeeCnt
Subtotal Spent	$105,861,640	SubtotalSpentAmt
Continuation Spent	$0	ContinuationSpentAmt
Total Spent	$105,861,640	TotalSpentAmt

Grants To Org Outside US GrantsToOrgOutsideUSGrp (2 entries)

RegionRegionTxt	Purpose Of GrantPurposeOfGrantTxt	Cash GrantCashGrantAmt	Manner Of Cash DisbursementMannerOfCashDisbursementTxt
North America (Canada & Mexico only)	Research	$25,255	Wire Transfer
North America (Canada & Mexico only)	Research	$10,500	Wire Transfer

Field	Value	IRS element (for citing)
Total501c3 Org	0	Total501c3OrgCnt
Total Other Org	2	TotalOtherOrgCnt
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	false	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	THE AQUARIUM REQUIRES POTENTIAL GRANT RECIPIENTS TO SUBMIT FORMAL APPLICATIONS WHICH ARE REVIEWED BY THE PROGRAM MANAGER FOR CONSISTENCY WITH THE AQUARIUM'S MISSION AND COMPLIANCE WITH THE ANNUAL BUDGET. FURTHERMORE, THE AQUARIUM REQUIRES A WRITTEN REPORT FROM THE GRANTEE PROVIDING DETAIL ABOUT HOW FUNDS WERE USED TO ACCOMPLISH THE GRANT OBJECTIVES. REPORTS ARE REVIEWED BY THE PROGRAM MANAGER FOR COMPLIANCE WITH GRANT CONDITIONS.
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
Schedule F, Part II, Line 1 Method used to account for expenditures on org's financial statements	NORTH AMERICA (CANADA & MEXICO ONLY)-Accrual

Schedule G IRS990ScheduleG

Field	Value	IRS element (for citing)
Mail Solicitations	Yes (X)	MailSolicitationsInd
Email Solicitations	Yes (X)	EmailSolicitationsInd
Phone Solicitations	Yes (X)	PhoneSolicitationsInd
In Person Solicitations	Yes (X)	InPersonSolicitationsInd
Solicitation Of Non Govt Grants	Yes (X)	SolicitationOfNonGovtGrantsInd
Solicitation Of Govt Grants	Yes (X)	SolicitationOfGovtGrantsInd
Special Fundraising Events	Yes (X)	SpecialFundraisingEventsInd
Agrmt Prof Fundraising Acty	Yes (true)	AgrmtProfFundraisingActyInd

Fundraiser Activity Info FundraiserActivityInfoGrp (2 entries)

Address Line1USAddress/AddressLine1Txt	CityUSAddress/CityNm	State AbbreviationUSAddress/StateAbbreviationCd	ZIPUSAddress/ZIPCd	ActivityActivityTxt	Fundraiser Control Of FundsFundraiserControlOfFundsInd	Retained By ContractorRetainedByContractorAmt	Net To OrganizationNetToOrganizationAmt	Gross ReceiptsGrossReceiptsAmt
Feldstein CO LLC
601 Skokie BLVD Suite 103	Northbrook	IL	60063	Consulting/marketing	false	$113,436	-$113,436
S D & A TELESERVICES
57 West Century BLVD STE 300	Los Angeles	CA	90045	Telemarketing	false	$18,914	$61	$18,975

Field	Value	IRS element (for citing)
Total Gross Receipts	$18,975	TotalGrossReceiptsAmt
Total Retained By Contractors	$132,350	TotalRetainedByContractorsAmt
Total Net To Organization	-$113,375	TotalNetToOrganizationAmt
Licensed States	CA	LicensedStatesCd
Licensed States	CO	LicensedStatesCd
Licensed States	CT	LicensedStatesCd
Licensed States	FL	LicensedStatesCd
Licensed States	AL	LicensedStatesCd
Licensed States	HI	LicensedStatesCd
Licensed States	IL	LicensedStatesCd
Licensed States	KS	LicensedStatesCd
Licensed States	KY	LicensedStatesCd
Licensed States	ME	LicensedStatesCd
Licensed States	AK	LicensedStatesCd
Licensed States	MD	LicensedStatesCd
Licensed States	MA	LicensedStatesCd
Licensed States	MI	LicensedStatesCd
Licensed States	MN	LicensedStatesCd
Licensed States	MS	LicensedStatesCd
Licensed States	NV	LicensedStatesCd
Licensed States	NH	LicensedStatesCd
Licensed States	NJ	LicensedStatesCd
Licensed States	NM	LicensedStatesCd
Licensed States	NY	LicensedStatesCd
Licensed States	NC	LicensedStatesCd
Licensed States	ND	LicensedStatesCd
Licensed States	OH	LicensedStatesCd
Licensed States	OK	LicensedStatesCd
Licensed States	OR	LicensedStatesCd
Licensed States	PA	LicensedStatesCd
Licensed States	RI	LicensedStatesCd
Licensed States	SC	LicensedStatesCd
Licensed States	TN	LicensedStatesCd
Licensed States	UT	LicensedStatesCd
Licensed States	VA	LicensedStatesCd
Licensed States	AR	LicensedStatesCd
Licensed States	WA	LicensedStatesCd
Licensed States	WV	LicensedStatesCd
Licensed States	WI	LicensedStatesCd

Fundraising Event Information FundraisingEventInformationGrp

Field	Value	IRS element (for citing)
Event1	David Packard Award Dinner	Event1Nm
Gross Receipts Event1	$2,479,742	GrossReceiptsEvent1Amt
Charitable Contri Event1	$2,444,614	CharitableContriEvent1Amt
Gross Revenue Event1	$35,128	GrossRevenueEvent1Amt
Non Cash Prizes Event1	$15,416	NonCashPrizesEvent1Amt
Rent Facility Costs Event1	$238,443	RentFacilityCostsEvent1Amt
Food And Beverage Event1	$155,990	FoodAndBeverageEvent1Amt
Entertainment Event1	$3,771	EntertainmentEvent1Amt
Other Direct Expenses Event1	$175,720	OtherDirectExpensesEvent1Amt
Gross Revenue Event2	$0	GrossRevenueEvent2Amt
Gross Revenue Other Events	$0	GrossRevenueOtherEventsAmt
Gross Receipts Total	$2,479,742	GrossReceiptsTotalAmt
Charitable Contributions Tot	$2,444,614	CharitableContributionsTotAmt
Gross Revenue Total Events	$35,128	GrossRevenueTotalEventsAmt
Non Cash Prizes Total Events	$15,416	NonCashPrizesTotalEventsAmt
Rent Fclty Costs Total Events	$238,443	RentFcltyCostsTotalEventsAmt
Food And Beverage Total Events	$155,990	FoodAndBeverageTotalEventsAmt
Entertainment Total Events	$3,771	EntertainmentTotalEventsAmt
Oth Direct Expnss Total Events	$175,720	OthDirectExpnssTotalEventsAmt
Direct Expense Summary Events	$589,340	DirectExpenseSummaryEventsAmt
Net Income Summary	-$554,212	NetIncomeSummaryAmt

Schedule I IRS990ScheduleI

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

Recipient Table RecipientTable (5 entries)

Address Line1USAddress/AddressLine1Txt	CityUSAddress/CityNm	State AbbreviationUSAddress/StateAbbreviationCd	ZIPUSAddress/ZIPCd	Recipient EINRecipientEIN	IRC SectionIRCSectionDesc	Cash GrantCashGrantAmt	Purpose Of GrantPurposeOfGrantTxt
Monterey Bay Aquarium Research Institute
7700 SANDHOLDT RD	Moss Landing	CA	95039	770150580	501(c)(3)	$500,000	Research
Planet Women
9720 COPPERTOP LOOP NE 104	BAINBRIDGE ISLAND	WA	981103690	270726824	501(c)(3)	$25,000	Research
Resources Legacy Fund
400 Capitol Mall Suite 2150	Sacramento	CA	95814	954703838	501(c)(3)	$7,000	Research
UC Regents of San Diego
9500 Gilman Drive MC 0955	La Jolla	CA	92093	956006144	501(c)(3)	$39,552	Research
University of California Santa Cruz
1156 High Street	Santa Cruz	CA	950641077	941539563	501(c)(3)	$15,813	Research

Field	Value	IRS element (for citing)
Total501c3 Org	5	Total501c3OrgCnt
Total Other Org	0	TotalOtherOrgCnt

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

Grant TypeGrantTypeTxt	RecipientRecipientCnt	Cash GrantCashGrantAmt
INDIVIDUAL SCHOLARSHIP	11	$61,831
STIPENDS	79	$32,000

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	THE AQUARIUM REQUIRES POTENTIAL GRANT RECIPIENTS TO SUBMIT FORMAL APPLICATIONS WHICH ARE REVIEWED BY THE PROGRAM MANAGER FOR CONSISTENCY WITH THE AQUARIUM'S MISSION AND COMPLIANCE WITH THE ANNUAL BUDGET. FURTHERMORE, THE AQUARIUM REQUIRES A WRITTEN REPORT FROM THE GRANTEE PROVIDING DETAIL ABOUT HOW FUNDS WERE USED TO ACCOMPLISH THE GRANT OBJECTIVES. REPORTS ARE REVIEWED BY THE PROGRAM MANAGER FOR COMPLIANCE WITH GRANT CONDITIONS.	ExplanationTxt

Schedule J IRS990ScheduleJ

Field	Value	IRS element (for citing)
Idemnification Gross Up Pmts	Yes (X)	IdemnificationGrossUpPmtsInd
Club Dues Or Fees	Yes (X)	ClubDuesOrFeesInd
Written Policy Ref T And E Expnss	Yes (true)	WrittenPolicyRefTAndEExpnssInd
Substantiation Required	Yes (true)	SubstantiationRequiredInd
Compensation Committee	Yes (X)	CompensationCommitteeInd
Independent Consultant	Yes (X)	IndependentConsultantInd
Form990 Of Other Organizations	Yes (X)	Form990OfOtherOrganizationsInd
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	Yes (true)	AnyNonFixedPaymentsInd
Initial Contract Exception	false	InitialContractExceptionInd

Rltd Org Officer Trst Key Empl RltdOrgOfficerTrstKeyEmplGrp (14 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
Julie Packard
Executive Director	$394,090	$0	$1,500	$0	$4,326	$0	$31,675	$0	$12,929	$0	$444,520	$0	$0	$0
Ann Marie Nemanich
Chief Financial Officer (beg Feb 2023)	$249,463	$0	$33,000	$0	$2,605	$0	$8,308	$0	$12,492	$0	$305,868	$0	$0	$0
Robert T Young
VP of Finance	$195,778	$0	$84,302	$0	$1,013	$0	$16,929	$0	$39,715	$0	$337,737	$0	$0	$0
Christina Fekeci
Chief Development Officer	$379,880	$0	$12,172	$0	$4,655	$0	$30,658	$0	$14,483	$0	$441,848	$0	$0	$0
Margaret Spring
Chief Conservation&Sci Officer	$246,796	$0	$3,000	$0	$2,714	$0	$20,400	$0	$26,410	$0	$299,320	$0	$0	$0
Dana M Allen-Greil
Chief Marketing Officer	$237,492	$0	$3,000	$0	$1,710	$0	$19,942	$0	$37,545	$0	$299,689	$0	$0	$0
Teresa J Merry
Chief Human Resources Officer	$230,576	$0	$3,000	$0	$4,637	$0	$18,942	$0	$24,245	$0	$281,400	$0	$0	$0
Jon Hoech
VP of Animal Care	$212,365	$0	$3,000	$0	$4,452	$0	$17,480	$0	$24,320	$0	$261,617	$0	$0	$0
Mary Beth Redmond-Jones
VP of Exhibitions	$203,459	$0	$3,000	$0	$3,293	$0	$16,521	$0	$4,190	$0	$230,463	$0	$0	$0
Jennifer Dianto Kemmerly
VP of Global Ocean Initiatives	$216,483	$0	$3,000	$0	$1,983	$0	$17,829	$0	$16,666	$0	$255,961	$0	$0	$0
Pauline J Parrish
Controller	$206,092	$0	$3,000	$0	$1,777	$0	$9,047	$0	$15,181	$0	$235,097	$0	$0	$0
Ann Dabovich
VP of Gift Planning	$194,522	$0	$3,000	$0	$4,285	$0	$15,829	$0	$13,421	$0	$231,057	$0	$0	$0
Aimee L David
VP US & CA Ocean Conservation	$192,236	$0	$3,000	$0	$2,389	$0	$15,646	$0	$13,549	$0	$226,820	$0	$0	$0
David E Rosenberg
VP of Guest Experience	$187,488	$0	$3,000	$0	$2,667	$0	$15,039	$0	$1,568	$0	$209,762	$0	$0	$0

Supplemental Information Detail SupplementalInformationDetail (3 entries)

Form And Line ReferenceFormAndLineReferenceDesc	ExplanationExplanationTxt
Schedule J, Part I, Line 1a Tax indemnification and gross-up payments	CERTAIN EMPLOYEES RECEIVED TAX GROSS-UP PAYMENTS FOR MILESTONE SERVICE AWARDS RECEIVED DURING THE COURSE OF THE 2023 CALENDAR YEAR. SUCH PAYMENTS WERE TREATED AS TAXABLE INCOME ON THE EMPLOYEE'S FORM W-2 AND REPORTED AS COMPENSATION ON SCHEDULE J, PART II, COLUMN B(III).
Schedule J, Part I, Line 1a Health or social club dues or initiation fees	AS PART OF THE AQUARIUM'S WELLNESS PROGRAM, ALL EMPLOYEES (INCLUDING THE LISTED EMPLOYEES IN PART VII, SECTION A) ARE ELIGIBLE TO RECEIVE A SUBSIDY FOR FITNESS CENTER DUES IF THE EMPLOYEE MEETS CERTAIN WELLNESS PROGRAM REQUIREMENTS. SINCE THIS TYPE OF SUBSIDY IS CONSIDERED A TAXABLE FRINGE BENEFIT, THE AQUARIUM GROSSES-UP THESE SUBSIDIES TO COVER THE EMPLOYEE'S TAXES. SUCH PAYMENTS WERE TREATED AS TAXABLE INCOME ON THE EMPLOYEE'S FORM W-2 AND REPORTED AS COMPENSATION ON SCHEDULE J, PART II, COLUMN B(III).
Schedule J, Part I, Line 7 Non-fixed payments	Certain Officers were awarded a sign on or stay bonus during 2023 as determined by the Board of directors. This Bonus is included in the amount REPORTED ON FORM 990, SCHEDULE J, PART II, COLUMN B(II).

Schedule M IRS990ScheduleM

Securities Publicly Traded SecuritiesPubliclyTradedGrp

Field	Value	IRS element (for citing)
Non Cash Checkbox	Yes (X)	NonCashCheckboxInd
Contribution	102	ContributionCnt
Noncash Contributions Rpt F990	$4,776,830	NoncashContributionsRptF990Amt
Method Of Determining Revenues	Market value	MethodOfDeterminingRevenuesTxt

Food Inventory FoodInventoryGrp

Field	Value	IRS element (for citing)
Non Cash Checkbox	Yes (X)	NonCashCheckboxInd
Contribution	1398	ContributionCnt
Noncash Contributions Rpt F990	$32,745	NoncashContributionsRptF990Amt
Method Of Determining Revenues	Market value	MethodOfDeterminingRevenuesTxt

Field	Value	IRS element (for citing)
Form8283 Received	0	Form8283ReceivedCnt
Any Property That Must Be Held	false	AnyPropertyThatMustBeHeldInd
Review Process Unusual NC Gifts	Yes (true)	ReviewProcessUnusualNCGiftsInd
Third Parties Used	false	ThirdPartiesUsedInd

Supplemental Information Detail SupplementalInformationDetail

Field	Value	IRS element (for citing)
Form And Line Reference	Schedule M, Part I Explanations of reporting method for number of contributions	FormAndLineReferenceDesc
Explanation	Securities - Publicly traded - number of contributions Food inventory - number of items	ExplanationTxt

Schedule O IRS990ScheduleO

Supplemental Information Detail SupplementalInformationDetail (7 entries)

Form And Line ReferenceFormAndLineReferenceDesc	ExplanationExplanationTxt
Form 990, Part VI, Line 2 Family/business relationships amongst interested persons	Julie Packard, Chris Scholin, Barbara Wright, and Lisa White - Business relationship, Julie Packard and Louise Stephens - Family relationship, Julie Packard and Louise Stephens - Business relationship, Michael Mantell and Mark Wan - Business relationship, Greg Silverman and Gideon Yu - Business relationship
Form 990, Part VI, Line 11b Review of form 990 by governing body	The Aquarium's Controller provides all information needed for the Form 990 to Crowe LLP based on audited financial statements. Crowe prepares and reviews the Form 990 and provides a draft which is revewed by the Controller, CFO, Secretary and Legal Counsel, and Executive Director with revisions incorporated as needed. Upon acceptance of the final version, the 990 is shared first with the Audit Committee for its review and then distributed to the full board prior to filing.
Form 990, Part VI, Line 12c Conflict of interest policy	The Executive Director's office assures that all disclosure forms (and mitigation plans, if applicable) have been received from all trustees and officers by January 31 of each year, prepares a summary of disclosures, and forwards the completed forms and the summary to the Aquarium's conflicts review panel, consisting of the Executive Director, legal counsel, Chief Human Resources Officer, and Chief Financial Officer (CFO). Trustees and Officers also acknowledge receipt and understanding of the Aquarium's COI policy in conjunction with providing the annual disclosures. Following review by the panel, the panel's findings and the disclosures are provided to the Board's Audit Committee, which reviews the disclosures and makes a report to the Board at its March meeting. Both the panel and the Audit Committee annually evaluate the effectiveness of the process. The CFO and Controller assure appropriate reporting to the external auditors and tax preparer. Trustees and officers have a continuing duty to make additional disclosures throughout the year if warranted. Employee Code of Ethical Conduct Policy - The Chief Human Resources Officer forwards the code, which includes a section on conflicts of interest, to all managers in early January each year, and assures that each manager responds that they have read it and are in compliance by January 31. Managers are also required to disclose any interests which could give rise to conflict, and to assure that any staff in their areas with interests which could give rise to conflict has done the same. Disclosures (and mitigation plans, if applicable) are reviewed by the Executive Director, Chief Human Resources Officer and CFO by March. This team also evaluates the effectiveness of the process. The CFO assures appropriate reporting to the external auditors and tax preparer. Employees have a continuing duty to make additional disclosures throughout the year if warranted.
Form 990, Part VI, Line 15a Process to establish compensation of top management official	The Board of Trustees maintains a performance evaluation process for the Chief Executive Officer, referred to as the Executive Director, who is a member of the Board. The Board's Executive Compensation Committee, comprised of independent trustees, reviews the CEO's performance with input from other board members, and recommends the compensation of the CEO to the Board. The Committee obtains and reviews market survey data from several independent organizations containing data for comparable positions at comparable organizations. The Committee provides the performance review and comparable salary information to the Board and recommends the CEO's compensation. Based upon the performance review and comparable salary information, the independent members of the Board determine that the compensation is fair, just and reasonable and then approve total compensation for the CEO. THE REVIEW AND APPROVAL IS CONTEMPORANEOUSLY DOCUMENTED IN THE MINUTES OF THE BOARD MEETING.
Form 990, Part VI, Line 15b Process to establish compensation of other employees	THE EXECUTIVE COMPENSATION COMMITTEE COMPRISED OF INDEPENDENT TRUSTEES PERIODICALLY OBTAINS A MARKET SURVEY FROM AN INDEPENDENT COMPENSATION CONSULTANT AND REVIEWS DATA FROM SEVERAL INDEPENDENT ORGANIZATIONS FOR COMPARABLE POSITIONS AT COMPARABLE ORGANIZATIONS. THE COMMITTEE APPROVES THE TOTAL COMPENSATION STRATEGY FOR THE AQUARIUM, CONSISTENT WITH ITS MISSION AND VALUES. THE BOARD DELEGATED TO THE EXECUTIVE COMPENSATION COMMITTEE THE APPROVAL OF COMPENSATION FOR THE CHIEF FINANCIAL OFFICER, WHO IS NOT A MEMBER OF THE BOARD. THE COMMITTEE REVIEWS THE PERFORMANCE OF THE CHIEF FINANCIAL OFFICER, AND BASED UPON THE PERFORMANCE AND COMPARABLE SALARY INFORMATION, THE COMMITTEE DETERMINES THAT THE COMPENSATION IS FAIR, JUST AND REASONABLE, AND APPROVES COMPENSATION FOR THE CFO. THE COMMITTEE REVIEWS THE PROPOSED COMPENSATION OF ANY OTHER OFFICER OR SENIOR STAFF REPORTING TO THE EXECUTIVE DIRECTOR/CEO, OR WHO IS HIGHLY COMPENSATED AS SPECIFICALLY REPORTED ON THE FORM 990. THE REVIEW AND APPROVAL ARE CONTEMPORANEOUSLY DOCUMENTED IN THE MINUTES OF THE COMMITTEE MEETING.
Form 990, Part VI, Line 19 Required documents available to the public	The Aquarium makes its audited financial statements and form 990 for the most recent three years available to the public by posting on its website. The conflicts of interest policy and governing documents are provided upon request within two business days.
Form 990, Part XI, Line 9 Other changes in net assets or fund balances	Unrealized Gain (Loss) on Interest in Charitable Remainder Trust - -78449; Change in allowance for Uncollectible pledges - -51820;