Adler's mission is to connect people to the universe and each other under the sky we all share.

501(c)(3) charity; gifts are tax-deductible.
67¢ of each $1 spent went to programs.
$1.9M paid to officers and key staff.
Mission: Form 990 Part I, line 1 · Status: IRS Pub. 78 · Programs: Part IX · Pay: Part VII

Before you give

FY2024 · Form 990Independent: from IRS data, not the org
Download 990
IRS status
501(c)(3)
not on the IRS revocation list
Looks good: listed by the IRS and not on the revocation list.
IRS BMF · Auto-Revocation List
Tax-deductible gifts
Yes
Donations are tax-deductible
Looks good: the IRS lists gifts to it as deductible.
IRS Pub. 78 · IRS BMF
Latest return
FY2025
latest Form 990
Looks good: the latest return is for FY2025, 1 tax year back; within 2 tax years.
IRS e-file · Filing history
Surplus or deficit
3 of 6
filings with a surplus
Average surplus $1.7M a year · 9% of revenue · last 6 filings
Worth a look: a surplus in 3 of the last 6 filings.
Pt I · Ln 19 · 6 filings
Spent on programs
67%
of spending
Fine: 67% of spending went to programs; 65% to 75%.
Pt IX · Ln 25 · col B
Pay to officers and key staff
$1.9M
to officers and key staff · 10% of spending
Looks good: pay to officers and key staff is 10% of spending; 15% or less.
Pt VII · Sec A
6 mo
of spending, in cash
Plus $38.3M in investments, Pt X · Ln 11–13
Looks good: 6.1 months of spending in cash; 3 or more.
Pt X · Ln 1–2 · Pt I · Ln 18
Named funders
2
named funders · $150K
Fine: 2 funders name it on their filings; under 3.
Funders’ Sch. I, 990-PF
Liabilities
$29.8M
43% of total assets
Looks good: liabilities are 43% of assets; 50% or less.
Pt X · Ln 26
Independent board members
54
of 54 voting members
Looks good: 54 of 54 voting members are independent, a majority.
Pt VI · Ln 1a–1b
Looks goodFineWorth a lookConcernNo data yetTap a box for the reason.
Revenue
$17.3M
-8% vs prior year
Spent
$19.0M
To programs
67%
Net assets
$39.0M
By yearFY2020–FY2025
Revenue
$17.3M
FY2024▼ -8%
Tap a bar for its year
Revenue by fiscal year
FY2020$15.9M
FY2021$11.5M
FY2022$24.2M
FY2023$18.8M
FY2024$17.3M
FY2025$22.0M
Expenses
$19.0M
FY2024▲ +19%
Tap a bar for its year
Expenses by fiscal year
FY2020$19.3M
FY2021$13.1M
FY2022$14.5M
FY2023$16.0M
FY2024$19.0M
FY2025$17.5M
Net assets
$39.0M
FY2024▲ +8%
Tap a bar for its year
Net assets by fiscal year
FY2020$16.5M
FY2021$23.7M
FY2022$29.5M
FY2023$36.2M
FY2024$39.0M
FY2025$42.9M

From the FY2024 Form 990 (year ending June 2024) · figures checked against the IRS filing · see the original

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You’re viewing the FY2024 filing — not the latest on file. See the latest (FY2025) →

Is it real?

Yes. Never revoked by the IRS. Latest filing on record: FY2025. IRS ruling in Sep 1968.

IRS Pub. 78 · IRS Auto-Revocation List · IRS Business Master File

Where the money goes

67 cents of each dollar spent went to programs.

Program services 67% · $12.7M Management & general 27% · $5.2M Fundraising 6% · $1.1M

Form 990 Part IX, line 25, columns B–D. Every line is in By the numbers.

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Who runs it and what they're paid

69 people listed on the 990; $1.9M paid to officers and key staff.

Part VII, Section A · reportable compensation · most recent filed roster (FY2023); the FY2024 filing did not itemize Part VII
President and CEO
$517,793Pt VII · Sec A
VP, Finance and Administration/CFO
$222,529Pt VII · Sec A
VP, Marketing & Communications
$217,252Pt VII · Sec A
VP, Citizen Science
$186,534Pt VII · Sec A
VP, Astronomy & Collections
$178,334Pt VII · Sec A
Controller
$127,593Pt VII · Sec A
Senior Director of Human Resources
$126,899Pt VII · Sec A
Senior Director of Development
$125,599Pt VII · Sec A

Michelle B Larson PHD’s $546K as Former President & CEO (thru 3/25) is at the 82nd percentile of top reported officer pay among 749 $10–100M arts & culture nonprofits. Peer set: organizations in the same NTEE major field of work and revenue-size band, compared on each org’s own highest-paid officer/key-employee, from Form 990 Part VII / 990-PF Part VIII. Descriptive placement, not a verdict on whether the pay is appropriate.

Compensation history total reportable pay by year · 8 named individuals · Part VII

NameFY2025FY2024FY2023FY2022FY2021FY2020
Michelle B Larson PHD$545,930$517,793$422,733———
Michelle B Larson———$417,804$406,234$425,988
Marcia J Heuser———$231,116$223,950$222,519
Audris Wong$230,448$222,529$61,005———
Cathleen Brueggemann——$182,558$229,211$223,107$220,157
Ryutaro Mizuno$223,920$217,252$207,246$188,578$181,328$178,835
Laura Trouille$196,413$186,534$156,919$158,903$151,041$148,363
Andrew Johnston$186,797$178,334$156,457$158,566$151,207$149,363

Total reportable compensation (Form 990 Part VII column D / Schedule J column E) by filing year, matched by name within this organization. The Schedule J base / bonus / deferred breakdown is not parsed into this dataset.

See Adler Planetarium executive salaries →

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Questions the 990 asks

The form asks each of these directly. These are the filed answers.

  • Family or business ties among officersPt VI · Ln 2No
  • Top official's pay set by an independent reviewPt VI · Ln 15aYes

Programs and updates

Connects people to the universe and each other through shared sky experiences.

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Provided by the organization

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1 program · $12.7M · in their own filed words · FY2023
01

Whether the adler planetarium is introducing a guest to the ring nebula, a neighborhood school to a community partner, a research team to a network of citizen scientists, or one staff member to another, the museum's focus on meaningful connections dates back nearly a century.

$12.7Mprogram expense

Funders

Who pays for it.

From grant filings on record. Receipts are incomplete: individual donors are never listed.

Grants

Schedule I · received and paid
Grants received · FY2025
Total grants receivedfrom 2 funders$150K
Grants paid · 13 grants · $66K · 2023–2024
Unitemized GrantFY2024$9,900
Unitemized GrantFY2024$7,800
Unitemized GrantFY2024$6,850
Unitemized GrantFY2024$2,500
Unitemized GrantFY2024$2,486
Unitemized GrantFY2024$2,000
Unitemized GrantFY2024$660
Unitemized GrantFY2023$11,215
Unitemized GrantFY2023$9,540
Unitemized GrantFY2023$7,930
Unitemized GrantFY2023$2,250
Unitemized GrantFY2023$2,000
Unitemized GrantFY2023$450

By the numbers

The FY2024 990, line by line.

1The main four
Money inPt VIII
$17.3M
Ln 12
Gifts and grantsLn 1h$7.9M
Fees for servicesLn 2g$6.3M
Investment incomeLn 3$1.7M
Money outPt IX
$19.0M
Ln 25
Programscol B$12.7M
Managementcol C$5.2M
Fundraisingcol D$1.1M
Owns and owesPt X
$39.0M
net assets · Ln 32
Cash and savingsLn 1–2$9.7M
Total assetsLn 16$68.8M
LiabilitiesLn 26$29.8M
PeoplePt VI, VII
69
listed · VII A
PaidVII A10
Voting boardVI 1a54
IndependentVI 1b54
2In more detail
Revenue in detailPt VIII
Gifts and grantsLn 1h$7.9M
Government grantsLn 1e$3.5M
Noncash giftsLn 1g$158K
Fundraising eventsLn 1c$902K
Fees for servicesLn 2g$6.3M
Investment incomeLn 3$1.7M
Other incomeLn 4–11$1.4M
Gains on assetsLn 7$301K
Total revenueLn 12$17.3M
Assets in detailPt X, end of year
CashLn 1$83K
SavingsLn 2$9.6M
Cash and savings togetherLn 1–2$9.7M
InvestmentsLn 11–13$38.3M
Land, buildings, equipmentLn 10c$19.5M
Other assetsLn 15$0
Total assetsLn 16$68.8M
LiabilitiesLn 26$29.8M
Net assetsLn 32$39.0M
OperationsPt I, VI
EmployeesI 5278
VolunteersI 6354
Fiscal year endsHeaderJune
Conflict-of-interest policyVI 12aYes
Whistleblower policyVI 13Yes
Records policyVI 14Yes
3Year over year
Balance sheet, start vs end of yearPt X · col A, B
LineStart FY24End FY24
Cash and savingsLn 1–2$10.5M$9.7M
InvestmentsLn 11–13$34.3M$38.3M
Land, buildings, equipmentLn 10c$19.8M$19.5M
Total assetsLn 16$67.1M$68.8M
LiabilitiesLn 26$31.0M$29.8M
Net assetsLn 32$36.2M$39.0M
4Every line
Statement of functional expensesPt IX · every line
LineTotalProgramsManagementFundraising
Grants to domestic individualsLn 2$33K$33K
Pay of current officers, directors and key staffLn 5$1.4M$599K$550K$215K
Other salaries and wagesLn 7$7.0M$5.0M$1.7M$279K
Pension plan contributionsLn 8$1.9M$156K$1.7M$13K
Other employee benefitsLn 9$778K$515K$220K$44K
Payroll taxesLn 10$639K$449K$159K$31K
Legal feesLn 11b$47K$47K
Accounting feesLn 11c$89K$89K
Professional fundraising feesLn 11e$142K$142K
Investment management feesLn 11f$65K$65K
Other fees for servicesLn 11g$1.5M$834K$324K$324K
Advertising and promotionLn 12$64K$18K$19K$27K
Office expensesLn 13$508K$436K$58K$13K
Information technologyLn 14$225K$178K$40K$7K
OccupancyLn 16$962K$925K$30K$7K
TravelLn 17$117K$93K$17K$8K
InterestLn 20$643K$643K
Depreciation, depletion and amortizationLn 22$2.0M$2.0M$10K$3K
InsuranceLn 23$252K$241K$8K$2K
Other expenses (24a–d)Ln 24$556K$484K$51K$21K
All other expensesLn 24e$92K$51K$39K$2K
Total functional expensesLn 25$19.0M$12.7M$5.2M$1.1M

Filing history

YearMoney inMoney outIn minus outNet assetsDownload
FY2025 Latest $22.0M$17.5M$4.5M$42.9M 990 PDF
FY2024 Viewing $17.3M$19.0M−$1.7M$39.0M 990 PDF
FY2023 $18.8M$16.0M$2.7M$36.2M 990 PDF
FY2022 $24.2M$14.5M$9.8M$29.5M 990 PDF
FY2021 $11.5M$13.1M−$1.6M$23.7M 990 PDF
FY2020 $15.9M$19.3M−$3.4M$16.5M 990 PDF

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Schedules filed Part IV

III · Programs R · Related orgs G · Fundraising L · Interested persons I · Grants A · Public support M · Noncash J · Pay O · Explanations
See the full FY2024 990 (6 parts)
Part I · Summary $17,286,761 revenue, 12 lines filed
I-8 Contributions and grantsPrior year $9,837,130$7,878,126
I-9 Program service revenuePrior year $6,176,636$6,290,218
I-10 Investment incomePrior year $1,035,581$1,681,066
I-11 Other revenuePrior year $1,724,849$1,437,351
I-12 Total revenuePrior year $18,774,196$17,286,761
I-13 Grants and similar amounts paidPrior year $0$33,385
I-14 Benefits paid to membersPrior year $0$0
I-15 Salaries and benefitsPrior year $9,369,139$11,688,396
I-16a Professional fundraising feesPrior year $0$142,392
I-17 Other expensesPrior year $6,663,634$7,144,760
I-18 Total expensesPrior year $16,032,773$19,008,933
I-19 Revenue less expensesPrior year $2,741,423−$1,722,172
Part VI · Governance 54 of 54 board members independent, no flags
VI-1a Voting members of the governing body54
VI-1b Independent voting members54
VI-2 Family or business relationship among officers or directorsNo
VI-12a Written conflict of interest policyYes
VI-13 Written whistleblower policyYes
VI-14 Document retention and destruction policyYes
VI-15a Process for setting top official's payYes
Part VIII · Statement of revenue $17,286,761 across 13 lines filed
VIII-1b Membership dues$176,702
VIII-1c Fundraising events$901,559
VIII-1e Government grants$3,510,662
VIII-1f All other contributions, gifts and grants$3,289,203
VIII-1g Noncash contributions (included above)$158,359
VIII-1h Total contributions, gifts and grants$7,878,126
VIII-2a-f Program service revenue, itemized rows (sum of 2a–2f as filed)Related to mission $6,290,218 · Unrelated business $0 · Excluded from tax $0$6,290,218
VIII-3 Investment incomeExcluded from tax $1,380,167$1,380,167
VIII-6 Net rental income or lossExcluded from tax $1,058,659$1,058,659
VIII-7 Net gain or loss on sales of assetsExcluded from tax $300,899$300,899
VIII-8 Net income from fundraising eventsExcluded from tax −$117,438−$117,438
VIII-11a-d Other revenue, itemized rows (sum of 11a–11d as filed)Unrelated business $5,365 · Excluded from tax $490,765$496,130
VIII-12 Total revenueRelated to mission $6,290,218 · Unrelated business $5,365 · Excluded from tax $3,113,052$17,286,761
Part IX · Statement of functional expenses $19,008,933 across 21 lines filed
IX-2 Grants to domestic individualsPrograms $33,385$33,385
IX-5 Pay of current officers, directors and key staffPrograms $598,518 · Management $549,560 · Fundraising $215,128$1,363,206
IX-7 Other salaries and wagesPrograms $4,994,874 · Management $1,731,746 · Fundraising $279,452$7,006,072
IX-8 Pension plan contributionsPrograms $156,470 · Management $1,732,672 · Fundraising $12,813$1,901,955
IX-9 Other employee benefitsPrograms $514,522 · Management $219,618 · Fundraising $43,739$777,879
IX-10 Payroll taxesPrograms $449,286 · Management $159,156 · Fundraising $30,842$639,284
IX-11b Legal feesManagement $47,151$47,151
IX-11c Accounting feesManagement $88,980$88,980
IX-11e Professional fundraising feesFundraising $142,392$142,392
IX-11f Investment management feesManagement $65,108$65,108
IX-11g Other fees for servicesPrograms $834,206 · Management $323,759 · Fundraising $323,756$1,481,721
IX-12 Advertising and promotionPrograms $18,181 · Management $18,864 · Fundraising $27,250$64,295
IX-13 Office expensesPrograms $436,447 · Management $58,409 · Fundraising $13,342$508,198
IX-14 Information technologyPrograms $177,666 · Management $40,213 · Fundraising $6,646$224,525
IX-16 OccupancyPrograms $925,342 · Management $29,933 · Fundraising $6,997$962,272
IX-17 TravelPrograms $92,690 · Management $17,024 · Fundraising $7,576$117,290
IX-20 InterestPrograms $642,629$642,629
IX-22 Depreciation, depletion and amortizationPrograms $2,030,489 · Management $9,923 · Fundraising $2,804$2,043,216
IX-23 InsurancePrograms $241,315 · Management $7,969 · Fundraising $2,252$251,536
IX-24 Other expenses (24a–d)Programs $483,937 · Management $50,706 · Fundraising $20,960$555,603
IX-24e All other expensesPrograms $51,320 · Management $39,384 · Fundraising $1,532$92,236
IX-25 Total functional expensesPrograms $12,681,277 · Management $5,190,175 · Fundraising $1,137,481$19,008,933
Part X · Balance sheet $68,795,804 assets, 20 lines filed
X-1 Cash, non-interest-bearingStart of year $153,562$82,760
X-2 Savings and temporary cash investmentsStart of year $10,337,573$9,640,557
X-3 Pledges and grants receivableStart of year $1,821,396$383,664
X-4 Accounts receivableStart of year $356,091$527,465
X-9 Prepaid expenses and deferred chargesStart of year $324,732$384,257
X-10c Land, buildings and equipment, netStart of year $19,824,650$19,503,433
X-11 Publicly traded securitiesStart of year $32,150,648$36,369,746
X-12 Other securitiesStart of year $2,164,765$1,903,922
X-13 Program-related investmentsStart of year $0$0
X-15 Other assetsStart of year $0$0
X-16 Total assetsStart of year $67,133,417$68,795,804
X-17 Accounts payable and accrued expensesStart of year $1,667,050$1,799,577
X-19 Deferred revenueStart of year $998,247$993,416
X-20 Tax-exempt bond liabilitiesStart of year $27,000,000$27,000,000
X-25 Other liabilitiesStart of year $1,289,521$29,801
X-26 Total liabilitiesStart of year $30,954,818$29,822,794
X-27 Net assets without donor restrictionsStart of year $24,445,100$29,060,532
X-28 Net assets with donor restrictionsStart of year $11,733,499$9,912,478
X-32 Total net assets or fund balancesStart of year $36,178,599$38,973,010
X-33 Total liabilities and net assetsStart of year $67,133,417$68,795,804
Part XI · Reconciliation of net assets $38,973,010 net assets at year end
XI-1 Total revenue$17,286,761
XI-2 Total expenses$19,008,933
XI-3 Revenue less expenses−$1,722,172
XI-4 Net assets at start of year$36,178,599
XI-5 Net unrealized gains (losses) on investments$2,844,479
XI-9 Other changes in net assets$1,672,104
XI-10 Net assets at end of year$38,973,010

Form 990 e-file (XML) FY2024 from the IRS · Classification, formation year and address from the IRS Business Master File

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