Civic Intelligence

Mount Wilson Institute

EIN 77-0132297 • 501(c)3 • Pasadena, CA

Profile

The Mount Wilson Institute provides access to the facilities of Mount Wilson observatory to visiting scientists, educators and the General public while servicing, maintaining and upgrading the overall facilities of the observatory.

75 S GrandPasadena, CA 91105

www.mtwilson.edu

Siviq Scores

Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.

Liabilities / Assets

30th percentile

0.01x

Higher debt load relative to assets than 30% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Source year 2024

Liabilities / Revenue

36th percentile

0.03x

Higher debt load relative to revenue than 36% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Source year 2024

Net Margin

72nd percentile

19%

Higher net margin than 72% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Source year 2024

Top Officer Pay

Score unavailable

No value available

No filing with officer rows is available for this organization yet.

Asset Growth

74th percentile

16%

Faster asset growth than 74% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Annualized from 2023 to 2024

Revenue Growth

23rd percentile

-8.8%

Faster revenue growth than 23% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Annualized from 2023 to 2024

Balance Sheet
Liabilities / Assets30th percentile

Assets

Up

$4,258,977

Up $591,676 (+16%) from 2023

Liabilities

Up

$29,520

Up $25,685 (+670%) from 2023

Net Assets

Up

$4,229,457

Up $565,991 (+15%) from 2023

Operations
Liabilities / Revenue36th percentileNet Margin72nd percentile

Revenue

Down

$1,165,408

Down $113,075 (-8.8%) from 2023

Expenses

Up

$946,377

Up $117,867 (+14%) from 2023

Net Income

Down

$219,031

Down $230,942 (-51%) from 2023

Trend Graphs

Balance Sheet Trend

Asset Growth74th percentile

Grouped bars show assets, liabilities, and net assets across loaded filings.

$6.0M$4.0M$2.0M$0Assets 2011: $870,988Liabilities 2011: $14,868Net Assets 2011: $856,1202011Assets 2012: $906,162Liabilities 2012: $5,520Net Assets 2012: $900,6422012Assets 2013: $905,069Liabilities 2013: $5,189Net Assets 2013: $899,8802013Assets 2014: $932,951Liabilities 2014: $20,831Net Assets 2014: $912,1202014Assets 2015: $853,777Liabilities 2015: $6,319Net Assets 2015: $847,4582015Assets 2016: $917,355Liabilities 2016: $4,235Net Assets 2016: $913,1202016Assets 2017: $975,683Liabilities 2017: $2,845Net Assets 2017: $972,8382017Assets 2018: $1,327,608Liabilities 2018: $10,591Net Assets 2018: $1,317,0172018Assets 2019: $2,021,264Liabilities 2019: $3,495Net Assets 2019: $2,017,7692019Assets 2020: $2,610,185Liabilities 2020: $43,138Net Assets 2020: $2,567,0472020Assets 2021: $3,027,388Liabilities 2021: $39,568Net Assets 2021: $2,987,8202021Assets 2022: $3,205,322Liabilities 2022: $20,019Net Assets 2022: $3,185,3032022Assets 2023: $3,667,301Liabilities 2023: $3,835Net Assets 2023: $3,663,4662023Assets 2024: $4,258,977Liabilities 2024: $29,520Net Assets 2024: $4,229,4572024

Highlighted filing

2024

Assets$4,258,977
Liabilities$29,520
Net Assets$4,229,457
Open 2024 Filing

Operations Trend

Revenue Growth23rd percentile

Revenue, expenses, and net income by year, with the latest filing highlighted.

$1.5M$1.0M$500K$0-$500KRevenue 2011: $871,327Expenses 2011: $654,393Net Income 2011: $216,9342011Revenue 2012: $1,173,213Expenses 2012: $1,128,691Net Income 2012: $44,5222012Revenue 2013: $361,279Expenses 2013: $362,041Net Income 2013: -$7622013Revenue 2014: $281,638Expenses 2014: $269,398Net Income 2014: $12,2402014Revenue 2015: $315,410Expenses 2015: $357,880Net Income 2015: -$42,4702015Revenue 2016: $462,282Expenses 2016: $396,620Net Income 2016: $65,6622016Revenue 2017: $772,125Expenses 2017: $462,407Net Income 2017: $309,7182017Revenue 2018: $850,995Expenses 2018: $559,837Net Income 2018: $291,1582018Revenue 2019: $1,262,876Expenses 2019: $562,124Net Income 2019: $700,7522019Revenue 2020: $999,596Expenses 2020: $450,318Net Income 2020: $549,2782020Revenue 2021: $997,387Expenses 2021: $576,614Net Income 2021: $420,7732021Revenue 2022: $936,896Expenses 2022: $726,349Net Income 2022: $210,5472022Revenue 2023: $1,278,483Expenses 2023: $828,510Net Income 2023: $449,9732023Revenue 2024: $1,165,408Expenses 2024: $946,377Net Income 2024: $219,0312024

Highlighted filing

2024

Revenue$1,165,408
Expenses$946,377
Net Income$219,031
Open 2024 Filing

Filings

Most recent year

2024 • Form 990Detailed filing. Detailed filing data is available for this year.

Open filing
Assets
$4,258,977
Liabilities
$29,520
Net assets
$4,229,457
Revenue
$1,165,408
Expenses
$946,377
Net income
$219,031
Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2024Detailed filing. Detailed filing data is available for this year.$4.26$0.03$4.23$1.17$0.95$0.22
2023Detailed filing. Detailed filing data is available for this year.$3.67$0.00$3.66$1.28$0.83$0.45
2022Detailed filing. Detailed filing data is available for this year.$3.21$0.02$3.19$0.94$0.73$0.21
2021Detailed filing. Detailed filing data is available for this year.$3.03$0.04$2.99$1.00$0.58$0.42
2020Detailed filing. Detailed filing data is available for this year.$2.61$0.04$2.57$1.00$0.45$0.55
2019Detailed filing. Detailed filing data is available for this year.$2.02$0.00$2.02$1.26$0.56$0.70
2018Detailed filing. Detailed filing data is available for this year.$1.33$0.01$1.32$0.85$0.56$0.29
2017Detailed filing. Detailed filing data is available for this year.$0.98$0.00$0.97$0.77$0.46$0.31
2016Detailed filing. Detailed filing data is available for this year.$0.92$0.00$0.91$0.46$0.40$0.07
2015Detailed filing. Detailed filing data is available for this year.$0.85$0.01$0.85$0.32$0.36$0.04
2014Detailed filing. Detailed filing data is available for this year.$0.93$0.02$0.91$0.28$0.27$0.01
2013Summary only. Only limited summary data is available for this year.$0.91$0.01$0.90$0.36$0.36$0.00
2012Summary only. Only limited summary data is available for this year.$0.91$0.01$0.90$1.17$1.13$0.04
2011Summary only. Only limited summary data is available for this year.$0.87$0.01$0.86$0.87$0.65$0.22
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Jan 1, 2024 to Dec 31, 2024
Signed
Nov 13, 2025
Return Version
2024v5.2
Gross Receipts
$1,309,348
Mission and Program Overview

Mission

The Mount Wilson Institute provides access to the facilities of Mount Wilson observatory to visiting scientists, educators and the General public while servicing, maintaining and upgrading the overall facilities of the observatory.

Balance Sheet Detail
LineBeginningEndChange
Assets
Savings and Temporary Cash Investments$2,746,146$3,190,819▲ $444,673
Land, Buildings, and Equipment, Net$594,810$693,042▲ $98,232
Cash and Non-Interest-Bearing Accounts$135,627$171,421▲ $35,794
Accounts Receivable$57,852$25,283▼ $32,569
Inventories for Sale or Use$230$5,777▲ $5,547
Other Notes and Loans Receivable, Net-$0-
Pledges and Grants Receivable-$0-
Receivable From Disqualified Prsn-$0-
Receivables From Officers Etc-$0-
Investments Other Securities-$0-
Investments Program Related-$0-
Investments in Publicly Traded Securities-$0-
Intangible Assets-$0-
Prepaid Expenses and Deferred Charges-$0-
Total Assets$3,667,301$4,258,977▲ $591,676
Other Assets Total$132,636$172,635▲ $39,999
Liabilities
Other Liabilities$601$23,249▲ $22,648
Accounts Payable and Accrued Expenses$3,234$6,271▲ $3,037
Total Liabilities$3,835$29,520▲ $25,685
Net Assets / Fund Balance
Net Assets Without Donor Restrictions$3,663,466$3,924,792▲ $261,326
Net Assets With Donor Restrictions-$304,665-
Total Net Assets Fund Balance$3,663,466$4,229,457▲ $565,991
Total Liabilities and Net Assets / Fund Balance$3,667,301$4,258,977▲ $591,676

Asset Categories

AssetBook ValueDepreciationBasis
Buildings$25,745$1,076,263$1,102,008
Other Land Buildings$311,063$186,544$497,607
Leasehold Improvements$178,261$267,815$446,076
Equipment$177,973$92,940$270,913
Compensation and Service Providers
Top Officer PayScore unavailable

Board Members and Trustees

NameTitle
Mr Samuel D HaleChairman & CEO
Katie SteinkeExecutive Director
Dr Josh SimonTrustee
Mr MICHAEL H HORNERTrustee
Mr Mike McIntyreTrustee
Mr Timothy ThompsonTrustee
Ms Linda Van Winkle DeaconTrustee
Tom MeneghiniTrustee
Mr Scott HoodCFO
Kohne DanCOO
Catherine HaightSecretary
Revenue and Support

Revenue Composition

Contributions and Grants
$369,340
Program Service Revenue
$485,290
Investment Income
$88,603
Other Revenue
$222,175
All Other Contributions
$369,340
Change in Net Assets
$219,031
Expenses and Functional Allocation

Major Expense Lines

Line ItemAmount
Other Expenses$551,384
Salaries, Compensation, and Employee Benefits$394,993
Grants and Similar Amounts Paid$0
Professional Fundraising Fees$0
Total Fundraising Expense$0

Functional Expense Allocation

Line ItemProgramManagementFundraisingTotal
Other Salaries and Wages$327,966$36,480-$364,446
All Other Expenses$80,031$35,287-$115,318
Depreciation Depletion$72,814$8,090-$80,904
Other Expenses$57,431$57,451-$57,431
Insurance$54,861--$54,861
Payroll Taxes$30,050--$30,050
Occupancy$16,961$1,884-$18,845
Fees for Services Accounting-$9,729-$9,729
Other Employee Benefits$497--$497
Advertising$170--$170
Total Functional Expenses$797,456$148,921$0$946,377
Fundraising, Events, and Gaming
Fundraising activities
Yes
Gaming activities
No
Professional fundraiser used
No

Fundraising and Gaming Totals

Line ItemAmount
Fundraising Gross Income$93,592
Fundraising Direct Expenses$10,855
Professional Fundraising Fees$0

Fundraising Events

EventGross ReceiptsGross RevenueDirect ExpensesNet Income
Concert Income$93,592$93,592$10,855$82,737
Total Events$93,592$93,592$10,855$82,737
Political and Lobbying Activity
Political campaign activity
No
Lobbying activity
No
Subject to proxy tax
No
Insider Transactions and Loans

Loans and Receivables

Line ItemBeginningEndChange
Receivables from Disqualified Persons-$0-
Receivables from Officers, Directors, Trustees, and Key Employees-$0-
Debt and Bond Financing

Other Reported Liabilities

LiabilityAmount
Sales Tax Payable$14,848
Cc$4,676
Payroll Liabilities$3,426
Other$299
Governance and Compliance

Governance Checklist

Compiled or reviewed by an accountant
No
Backup withholding compliance
Yes
Business relationship with 35% controlled entity
No
Business relationship with family members
No
Business relationship with organization members
No
Material changes to governing documents
No
Compensation from other sources disclosed
No
CEO compensation reviewed
No
Other officer compensation reviewed
No
Conflict-of-interest policy
No
Audited financial statements prepared
No
Key decisions subject to board approval
No
Management duties delegated
No

Governance Explanations

Form 990, Part VI, Section B, Line 11B

“Reviewed by appropriate committee”

Form 990, Part VI, Section C, Line 19

“Available upon request.”

Filing and Contact Details

Filer

Filer Name
Mount Wilson Institute
EIN
77-0132297
Phone
6262148030
Address
75 S GRAND, PASADENA, CA 91105

Signing Officer

Name
Dan Kohne
Title
COO
Signed
2025-11-13
Discuss with paid preparer
Yes

Organization Details

Formed
1986
Legal Domicile
CA
Voting Board Members
11
Independent Board Members
11
Employees
16
Volunteers
178

Preparer

Firm
Gavigan & Company
Address
959 E Walnut Street Suite 250, Pasadena, CA 91106
Preparer
Michelle Y Gavigan CPA
Phone
6268447914
Supplemental Narrative

Additional Explanations

Form 990, Part IX, Line 24E

“BANK & CC CHARGES: Column (A) - Total = $14831; Column (B) - Program Services = $14831; Column (C) - Management & General = $0; Column (D) - Fundraising = $0”

Form 990, Part IX, Line 24E

“Printing and Publications: Column (A) - Total = $805; Column (B) - Program Services = $805; Column (C) - Management & General = $0; Column (D) - Fundraising = $0”

Form 990, Part IX, Line 24E

“Repair & Maintenance: Column (A) - Total = $33663; Column (B) - Program Services = $33663; Column (C) - Management & General = $0; Column (D) - Fundraising = $0”

Form 990, Part IX, Line 24E

“SUPPLIES: Column (A) - Total = $30732; Column (B) - Program Services = $30732; Column (C) - Management & General = $0; Column (D) - Fundraising = $0”

Form 990, Part IX, Line 24E

“Vehicle Expense & Maintenance: Column (A) - Total = $21304; Column (B) - Program Services = $0; Column (C) - Management & General = $21304; Column (D) - Fundraising = $0”

Form 990, Part IX, Line 24E

“WEB DESIGN AND COMPUTER EXP: Column (A) - Total = $13983; Column (B) - Program Services = $0; Column (C) - Management & General = $13983; Column (D) - Fundraising = $0”

Form 990, Part XI, Line 9

“Restricted for 2025 = $304665”

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This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.

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