JOHN P CALAMOS SR FOUNDATION

Nonpartisan civic infrastructure

AllCiv·Legis1

JOHN P Calamos SR Foundation

Private foundation

DBA: % CALAMOS FAMILY OFFICE

Foundations · NAPERVILLE, IL · EIN 20-1383344

In care of Calamos Family Office

Donations are tax-deductible

FY ending 2023-12-31

Revenue

—

Expenses

—

Assets

$36.3M

Liabilities

No revenue/expense data reported.

Campaign Spending

—

Lobbying

—

Grants Given

$1.6M

JOHN P CALAMOS SR FOUNDATION

Your actions

2020 Calamos CT STE 200

Naperville, IL, 60563-279

Public records

Full 990 PDFs going back to 2001, plus parsed financial extracts. The easiest place to read actual filings.

IRS-side authoritative source. Confirms current exempt status and pulls the latest determination letter.

These open in a new tab. AllCiv doesn't host filings directly — these are the authoritative public-record sources.