John P Calamos Sr Foundation
Only null% goes to programs Strong reserves
John P Calamos Sr Foundation is a 501(c)(3) organization based in Naperville, Illinois, registered in 2006, with $14,594,494 in FY2024 revenue. CharityIndex grades it C+.
2020 Calamos Ct Ste 200, Naperville, IL, 60563 EIN 20-1383344 Since 2006
Revenue (FY2024)
$14.6M
▲ 1308.4% vs prior year
Philanthropy median: $168K
Expenses (FY2024)
$13.2M
Net assets
$44.9M
Employees
—
CharityIndex rating
One independent A+ to F grade from four published criteria, each scored separately from IRS filings and combined by weight.
C+
★★★★
Rated on 2 of 4 criteria — the rest aren't reported in this filing type.
Held down by its weakest criterion — a strong score on one criterion can't hide a weak one.
How the rating works →—Program efficiency40% of the ratingNo expense breakdown in filings
Measures how much of every dollar spent actually reaches programs, plus what it costs to raise $100 of donations. The worse of the two measures sets the letter (85%+ to programs is an A; under $15 to raise $100 is an A), averaged over the three most recent filings. Not scored for John P Calamos Sr Foundation— this filing type doesn't report it, and the rating simply skips it (never counts it against the organization). See the exact thresholds →
AFinancial health25% of the rating41 mo reserves · +10% margin
Measures whether the organization is built to last: how many months its reserves would cover expenses (3+ months earns an A-range score, but hoarding 5+ years of budget is capped) and whether it runs a surplus or a deficit. For John P Calamos Sr Foundation: 41 mo reserves · +10% margin earns a A on this criterion. See the exact thresholds →
—Governance25% of the ratingNot reported in this filing type
Checks how the organization is run, from its own Form 990: an independent board majority, a board of five or more, conflict-of-interest, whistleblower and document-retention policies, and independently audited financials. The share of disclosed checks that pass sets the letter. Not scored for John P Calamos Sr Foundation— this filing type doesn't report it, and the rating simply skips it (never counts it against the organization). See the exact thresholds →
DTransparency10% of the rating1 of 5 disclosure signals
Counts five disclosure signals: a recent filing, a mission statement, program descriptions, a listed website, and the full expense breakdown. More disclosure, better letter. For John P Calamos Sr Foundation: 1 of 5 disclosure signals earns a D on this criterion. See the exact thresholds →
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Contact & location
- Address
- 2020 Calamos Ct Ste 200, Naperville, IL, 60563
- City
- Naperville
- State
- Illinois
- Subcategory
- Private Foundations
Financial trends
Revenue grew from $1.8M (FY2013) to $14.6M (FY2024) across 11 reported years.
Financial snapshot
Financial health & position (FY2024)
Liabilities $0Net assets $44.9M
Operating margin
9.8%
Revenue exceeded expenses in the latest fiscal year.
Total assets
$44.9M
Total liabilities
$0
Net assets
$44.9M
Financials by year
| Fiscal year | Revenue | Expenses | Net assets | Total assets | Form |
|---|---|---|---|---|---|
| 2024 | $14,594,494▲1308% | $13,159,457▲714% | $44,851,372▲23.4% | $44,851,372▲23.4% | 990PF |
| 2023 | $1,036,214▼79.5% | $1,616,571▲104% | $36,343,979▲26.4% | $36,343,979▲26.4% | 990PF |
| 2022 | $5,053,747▼62.9% | $792,306▲182% | $28,753,285▼22.5% | $28,753,287▼29.4% | 990PF |
| 2021 | $13,631,819▲588% | $281,389▼59.6% | $37,111,249▲65.7% | $40,706,023▲37.4% | 990PF |
| 2020 | $1,982,251▲6.8% | $696,729▲42.7% | $22,400,118▲126% | $29,634,729▲65.1% | 990PF |
| 2018 | $1,855,522▲43.3% | $488,275▲68.3% | $9,908,257▼16.1% | $17,951,780▼7.4% | 990PF |
| 2017 | $1,294,657▲329% | $290,038▼84.8% | $11,807,801▲9.3% | $19,388,713▲7.1% | 990PF |
| 2016 | $301,588▼82.8% | $1,901,934▲71.4% | $10,803,182▼12.9% | $18,107,415▼4.9% | 990PF |
| 2015 | $1,756,776▼63.4% | $1,109,634▼66.1% | $12,403,528▲5.5% | $19,033,766▲15.1% | 990PF |
| 2014 | $4,805,654▲172% | $3,275,015▲193% | $11,756,386▲15.0% | $16,537,783▲44.5% | 990PF |
| 2013 | $1,768,493 | $1,116,809▲9.8% | $10,225,747▲6.8% | $11,443,927▲19.5% | 990PF |
| 2012 | — | $1,016,938▲2.4% | $9,574,063▲32.8% | $9,574,063▲32.8% | 990PF |
| 2011 | — | $992,924▲4060% | $7,206,734▲19.5% | $7,206,734▲19.5% | 990PF |
| 2010 | — | $23,868 | $6,029,035 | $6,029,035 | 990PF |
Original Form 990 PDFs (the Form column) are served by ProPublica Nonprofit Explorer, as filed with the IRS. Create a free account to download the CSV report.
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Frequently asked questions
- Is John P Calamos Sr Foundation a legitimate nonprofit?
- Yes. John P Calamos Sr Foundation is a 501(c)(3) organization registered with the U.S. Internal Revenue Service under EIN 20-1383344, based in Naperville, Illinois. Donations are tax-deductible.
- What is John P Calamos Sr Foundation's EIN?
- John P Calamos Sr Foundation's Employer Identification Number (EIN) is 20-1383344.
- How much revenue does John P Calamos Sr Foundation report?
- John P Calamos Sr Foundation reported $14,594,494 in total revenue on its fiscal year 2024 IRS Form 990 filing.
- What financial grade does John P Calamos Sr Foundation have?
- CharityIndex grades John P Calamos Sr Foundation C+, based on financial health (reserves and operating margin).
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Data for John P Calamos Sr Foundation (EIN 20-1383344) comes from the IRS Business Master File and e-filed Form 990 returns, via CharityIndex. Figures reflect what the organization reported to the IRS for each fiscal year.