John P Calamos Sr Foundation

Naperville, IL
Tax-exempt since June 2006
EIN: 20-1383344

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Type of Nonprofit

Designated as a 501(c)(3) Organizations for any of the following purposes: religious, educational, charitable, scientific, literary, testing for public safety, fostering national or international amateur sports competition (as long as it doesn't provide athletic facilities or equipment), or the prevention of cruelty to children or animals.

Category: Philanthropy, Voluntarism and Grantmaking Foundations / Private Independent Foundations (NTEE)

Donations to this organization are tax deductible.

Revenue

$14.6M (2024)

Expenses

$13.2M (2024)

Total Assets

$44.9M (2024)

Total Liabilities

$0 (2024)

Source: Form 990 tax filings from 2011 to 2024

Tax Filings by Year

Form 990 is an information return that most organizations claiming federal tax-exempt status must file yearly with the IRS. Nonprofit Explorer has IRS digitized Form 990 data for filings processed in 2012 and later. If this organization filed an amended return, it may not be reflected below. Duplicate download links may indicate a resubmission or amendment to this organization's original return. Form 990 data is from the IRS.

Fiscal Year Ending Dec.
2024

Revenue

$14,594,494

Expenses

$13,159,457

Net Income

$1,435,037

Net Assets

$44,851,372

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$12,600,000	86.3%
Interest Revenue	$0
Dividends	$594,519	4.1%
Sales of Assets	$1,399,975	9.6%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$13,158,118	100.0%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$44,851,372
Total Liabilities	$0
Net Assets	$44,851,372

Compensation

Key Employees and Officers	Compensation	Other
John P Calamos Sr (Co Trustee)	$0	$0
Mae Calamos (Co Trustee)	$0	$0
Laura Calamos (Co Trustee)	$0	$0
James R Adams (Co Trustee)	$0	$0
Kenneth S Witkowski (Co Trustee)	$0	$0

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990-PF

Filed on May 13, 2025

Primary tax return for a private foundation's activities, finances, and governance

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Schedules ▼

XML

Fiscal Year Ending Dec.
2023

Revenue

$1,036,214

Expenses

$1,616,571

Net Income

-$580,357

Net Assets

$36,343,979

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$250,000	24.1%
Interest Revenue	$0
Dividends	$103,275	10.0%
Sales of Assets	$655,798	63.3%
Other Income	$27,141	2.6%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$1,615,515	99.9%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$36,343,979
Total Liabilities	$0
Net Assets	$36,343,979

Compensation

Key Employees and Officers	Compensation	Other
John P Calamos Sr (Co Trustee)	$0	$0
Mae Calamos (Co Trustee)	$0	$0
Laura Calamos (Co Trustee)	$0	$0
James R Adams (Co Trustee)	$0	$0
Kenneth S Witkowski (Co Trustee)	$0	$0

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990-PF

Filed on May 14, 2024

Primary tax return for a private foundation's activities, finances, and governance

View Filing

Schedules ▼

PDF XML

View Filing (2 of 2)

Fiscal Year Ending Dec.
2022

Revenue

$5,053,747

Expenses

$792,306

Net Income

$4,261,441

Net Assets

$28,753,285

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$5,000,000	98.9%
Interest Revenue	$0
Dividends	$56,229	1.1%
Sales of Assets	-$2,482
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$711,716	89.8%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$28,753,287
Total Liabilities	$2
Net Assets	$28,753,285

Compensation

Key Employees and Officers	Compensation	Other
John P Calamos Sr (Co Trustee)	$0	$0
Mae Calamos (Co Trustee)	$0	$0
Laura Calamos (Co Trustee)	$0	$0
James R Adams (Co Trustee)	$0	$0
Kenneth S Witkowski (Co Trustee)	$0	$0

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990-PF

Filed on May 15, 2023

Primary tax return for a private foundation's activities, finances, and governance

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Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2021

Revenue

$13,631,819

Expenses

$281,389

Net Income

$13,350,430

Net Assets

$37,111,249

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$9,867,686	72.4%
Interest Revenue	$0
Dividends	$1,178,740	8.6%
Sales of Assets	$2,585,393	19.0%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$250,400	89.0%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$40,706,023
Total Liabilities	$3,594,774
Net Assets	$37,111,249

Compensation

Key Employees and Officers	Compensation	Other
John P Calamos Sr (Co Trustee)	$0	$0
Mae Calamos (Co Trustee)	$0	$0
Laura Calamos (Co Trustee)	$0	$0
James R Adams (Co Trustee)	$0	$0
Kenneth S Witkowski (Co Trustee)	$0	$0

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990-PF

Filed on May 11, 2022

Primary tax return for a private foundation's activities, finances, and governance

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Schedules ▼

XML

Fiscal Year Ending Dec.
2020

Revenue

$1,982,251

Expenses

$696,729

Net Income

$1,285,522

Net Assets

$22,400,118

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$150,000	7.6%
Interest Revenue	$0
Dividends	$146,046	7.4%
Sales of Assets	$1,686,205	85.1%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$696,322	99.9%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$29,634,729
Total Liabilities	$7,234,611
Net Assets	$22,400,118

Compensation

Key Employees and Officers	Compensation	Other
John P Calamos Sr (Co Trustee)	$0	$0
Mae Calamos (Co Trustee)	$0	$0
Laura Calamos (Co Trustee)	$0	$0

990-PF

Filed on May 11, 2021

Primary tax return for a private foundation's activities, finances, and governance

View Filing

Schedules ▼

XML

Fiscal Year Ending Dec.
2019

Revenue

$952,538

Expenses

$595,649

Net Income

$356,889

Net Assets

$14,807,586

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$100,000	10.5%
Interest Revenue	$0
Dividends	$65,993	6.9%
Sales of Assets	$771,684	81.0%
Other Income	$14,861	1.6%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$548,902	92.2%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$23,325,478
Total Liabilities	$8,517,892
Net Assets	$14,807,586

990-PF

Primary tax return for a private foundation's activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2018

Revenue

$1,855,522

Expenses

$488,275

Net Income

$1,367,247

Net Assets

$9,908,257

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$3,750	0.2%
Interest Revenue	$0
Dividends	$352,416	19.0%
Sales of Assets	$1,487,225	80.2%
Other Income	$12,131	0.7%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$464,916	95.2%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$17,951,780
Total Liabilities	$8,043,523
Net Assets	$9,908,257

Compensation

Key Employees and Officers	Compensation	Other
John P Calamos Sr (Trustee)	$0	$0
Mae Calamos (Trustee)	$0	$0
Laura Calamos (Trustee)	$0	$0

990-PF

Filed on May 14, 2019

Primary tax return for a private foundation's activities, finances, and governance

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2017

Revenue

$1,294,657

Expenses

$290,038

Net Income

$1,004,619

Net Assets

$11,807,801

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$47,263	3.7%
Sales of Assets	$1,247,383	96.3%
Other Income	$11	0.0%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$253,047	87.2%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$19,388,713
Total Liabilities	$7,580,912
Net Assets	$11,807,801

Compensation

Key Employees and Officers	Compensation	Other
John P Calamos Sr (Trustee)	$0	$0
Mae Calamos (Trustee)	$0	$0

990-PF

Filed on May 14, 2018

Primary tax return for a private foundation's activities, finances, and governance

View Filing

Schedules ▼

PDF XML

990-T

For unrelated business income from activities not substantially related to the organization's tax-exempt purpose

PDF

Fiscal Year Ending Dec.
2016

Revenue

$301,588

Expenses

$1,901,934

Net Income

-$1,600,346

Net Assets

$10,803,182

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$57,364	19.0%
Sales of Assets	$244,055	80.9%
Other Income	$169	0.1%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$1,710,000	89.9%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$18,107,415
Total Liabilities	$7,304,233
Net Assets	$10,803,182

Compensation

Key Employees and Officers	Compensation	Other
John P Calamos Sr (Trustee)	$0	$0
Mae Calamos (Trustee)	$0	$0

990-PF

Filed on May 15, 2017

Primary tax return for a private foundation's activities, finances, and governance

View Filing

Schedules ▼

PDF XML

990-T

For unrelated business income from activities not substantially related to the organization's tax-exempt purpose

PDF

Fiscal Year Ending Dec.
2015

Revenue

$1,756,776

Expenses

$1,109,634

Net Income

$647,142

Net Assets

$12,403,528

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$224,296	12.8%
Sales of Assets	$1,532,062	87.2%
Other Income	$418	0.0%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$1,000,000	90.1%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$19,033,766
Total Liabilities	$6,630,238
Net Assets	$12,403,528

Compensation

Key Employees and Officers	Compensation	Other
John P Calamos Sr (Trustee)	$0	$0
Mae Calamos (Trustee)	$0	$0

990-PF

Filed on May 24, 2016

Primary tax return for a private foundation's activities, finances, and governance

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2014

Revenue

$4,805,654

Expenses

$3,275,015

Net Income

$1,530,639

Net Assets

$11,756,386

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$3,012,471	62.7%
Interest Revenue	$0
Dividends	$139,251	2.9%
Sales of Assets	$1,653,892	34.4%
Other Income	$40	0.0%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$3,200,000	97.7%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$16,537,783
Total Liabilities	$4,781,397
Net Assets	$11,756,386

Compensation

Key Employees and Officers	Compensation	Other
John P Calamos Sr (Trustee)	$0	$0
Mae Calamos (Trustee)	$0	$0

990-PF

Filed on May 14, 2015

Primary tax return for a private foundation's activities, finances, and governance

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2013

Revenue

$1,768,493

Expenses

$1,116,809

Net Income

$651,684

Net Assets

$10,225,747

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$1	0.0%
Dividends	$164,685	9.3%
Sales of Assets	$1,603,807	90.7%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$1,105,013	98.9%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$11,443,927
Total Liabilities	$1,218,180
Net Assets	$10,225,747

Compensation

Key Employees and Officers	Compensation	Other
John P Calamos Sr (Trustee)	$0	$0

990-PF

Filed on May 14, 2014

Primary tax return for a private foundation's activities, finances, and governance

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2012

Revenue

$3,376,838

Expenses

$1,016,938

Net Income

$2,359,900

Net Assets

$9,574,062

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$2,962,988	87.7%
Interest Revenue	$2	0.0%
Dividends	$50,026	1.5%
Sales of Assets	$363,822	10.8%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$1,008,892	99.2%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$9,574,063
Total Liabilities	$1
Net Assets	$9,574,062

990-PF

Primary tax return for a private foundation's activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2011

Revenue

$2,200,171

Expenses

$992,924

Net Income

$1,207,247

Net Assets

$7,206,733

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$2,031,288	92.3%
Interest Revenue	$2	0.0%
Dividends	$23,164	1.1%
Sales of Assets	$145,717	6.6%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$992,304	99.9%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$7,206,734
Total Liabilities	$1
Net Assets	$7,206,733

990-PF

Primary tax return for a private foundation's activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2010

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

990-PF

Primary tax return for a private foundation's activities, finances, and governance

Primary tax return for a private foundation's activities, finances, and governance

PDF

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What Is This Data?

Nonprofit Explorer includes summary data for nonprofit tax returns and full Form 990 documents, in both PDF and digital formats.

The summary data contains information processed by the IRS during the 2012-2019 calendar years; this generally consists of filings for the 2011-2018 fiscal years, but may include older records. This data release includes only a subset of what can be found in the full Form 990s.

In addition to the raw summary data, we link to PDFs and digital copies of full Form 990 documents wherever possible. This consists of separate releases by the IRS of Form 990 documents processed by the agency, which we update regularly.

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Every organization that has been recognized as tax exempt by the IRS has to file Form 990 every year, unless they make less than $200,000 in revenue and have less than $500,000 in assets, in which case they have to file form 990-EZ. Organizations making less than $50,000 don’t have to file either form but do have to let the IRS they’re still in business via a Form 990N "e-Postcard."

Nonprofit Explorer has organizations claiming tax exemption in each of the 27 subsections of the 501(c) section of the tax code, and which have filed a Form 990, Form 990EZ or Form 990PF. Taxable trusts and private foundations that are required to file a form 990PF are also included. Small organizations filing a Form 990N "e-Postcard" are not included in this data.

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John P Calamos Sr Foundation

Organization summary

Type of Nonprofit

Summary charts: organization finances over time

Revenue $14.6M (2024)

Expenses $13.2M (2024)

Total Assets $44.9M (2024)

Total Liabilities $0 (2024)

Tax Filings by Year

Fiscal Year Ending Dec. 2024

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2023

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2022

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2021

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2020

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2019

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Document Links

990-PF

Fiscal Year Ending Dec. 2018

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2017

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

990-T

Fiscal Year Ending Dec. 2016

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

990-T

Fiscal Year Ending Dec. 2015

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2014

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2013

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Revenue

$14.6M (2024)

Expenses

$13.2M (2024)

Total Assets

$44.9M (2024)

Total Liabilities

$0 (2024)

Fiscal Year Ending Dec.
2024

Fiscal Year Ending Dec.
2023

Fiscal Year Ending Dec.
2022

Fiscal Year Ending Dec.
2021

Fiscal Year Ending Dec.
2020

Fiscal Year Ending Dec.
2019

Fiscal Year Ending Dec.
2018

Fiscal Year Ending Dec.
2017

Fiscal Year Ending Dec.
2016

Fiscal Year Ending Dec.
2015

Fiscal Year Ending Dec.
2014

Fiscal Year Ending Dec.
2013

Fiscal Year Ending Dec.
2012

Fiscal Year Ending Dec.
2011

Fiscal Year Ending Dec.
2010

Fiscal Year Ending Dec.
2009

Fiscal Year Ending Dec.
2008

Fiscal Year Ending Dec.
2007

Fiscal Year Ending Dec.
2006

Fiscal Year Ending Dec.
2005

Fiscal Year Ending Dec.
2004