Nonprofit · EIN 36-4104629
RUNDGREN FOUNDATION
Tax-exempt · OAK BROOK, IL 60523
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $119,554 | $213,310 | -$93,756 | $2,301,584 | $0 | $2,301,584 |
| December 31, 2024 | 990-PF | $183,110 | $203,161 | -$20,051 | $2,395,340 | $0 | $2,395,340 |
| December 31, 2023 | 990-PF | $146,404 | $188,759 | -$42,355 | $2,415,391 | $0 | $2,415,391 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $15,000
- Dividends
- $92,019
- Net gain from sales of assets
- $12,535
Expenses
- Grants and similar amounts paid
- $135,000
- Compensation of officers, directors and key employees
- $30,000
- Disbursements for charitable purposes
- $173,994
- Excise tax on investment income
- $928
Balance sheet and other
- Total assets, start of year
- $2,395,340
- Total assets, end of year
- $2,301,584
- Total liabilities, end of year
- $0
- Net assets, end of year
- $2,301,584
- Fair market value of assets
- $3,591,267
- Qualifying distributions
- $173,994
- Net investment income
- $104,554
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990-PF for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| WAYNE W HAACK 1622 FOX HILL PLACE, DARIEN, IL 605615320 | PRESIDENT | 1 | $30,000 |
| CHRISTOPHER M REISER 1352 EAST GARTNER ROAD, NAPERVILLE, IL 60540 | SECRETARY | 1 | $0 |
| CHRISTINE M REISER 1352 EAST GARTNER ROAD, NAPERVILLE, IL 60540 | Treasurer | 0 | $0 |
990-PF for the year ended December 31, 2024: 3 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| WAYNE W HAACK 1622 FOX HILL PLACE, DARIEN, IL 605615320 | PRESIDENT | 1 | $30,000 |
| CHRISTOPHER M REISER 1352 EAST GARTNER ROAD, NAPERVILLE, IL 60540 | SECRETARY | 1 | $0 |
| CHRISTINE M REISER 1352 EAST GARTNER ROAD, NAPERVILLE, IL 60540 | Treasurer | 0 | $0 |
990-PF for the year ended December 31, 2023: 2 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| WAYNE W HAACK 1622 FOX HILL PLACE, DARIEN, IL 605615320 | PRESIDENT | 1 | $25,000 |
| CHRISTOPHER M REISER 1352 EAST GARTNER ROAD, NAPERVILLE, IL 60540 | SECRETARY | 1 | $0 |
Address and contacts
- Address (IRS master file)
- 1010 JORIE BLVD STE 120, OAK BROOK, IL 60523-4448
- Signed the 990-PF
- WAYNE W HAACK, PRESIDENT
- Phone
- (630) 990-8855
- Return prepared by
- WAYNE W HAACK & CO PC
What it must file and when
IRS records say it files Form 990-PF. Private foundations file every year. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990-PF on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990-PF on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990-PF on file |
IRS record
- EIN
- 36-4104629
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Private non-operating foundation
- Donations deductible (Pub 78)
- Private foundation, 30% limit
- Exempt since
- 1997
- Accounting year ends
- December
- Files
- Form 990-PF
- Category (NTEE)
- Philanthropy, voluntarism and grantmaking foundations (T20Z)
- Assets (IRS master file)
- $2,301,584
- Income (IRS master file)
- $264,733
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $119,554 | $213,310 | $2,301,584 | XML |
| 990-PF | December 2024 | $183,110 | $203,161 | $2,395,340 | XML |
| 990-PF | December 2023 | $146,404 | $188,759 | $2,415,391 | XML |
| 990-PF | December 2022 | – | – | – | IRS |
| 990-PF | December 2021 | – | – | – | IRS |
| 990-PF | December 2020 | – | – | – | IRS |
| 990-PF | December 2018 | – | – | – | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 36-4104629).
Questions about RUNDGREN FOUNDATION
- What is the EIN of RUNDGREN FOUNDATION?
- The employer identification number (EIN) of RUNDGREN FOUNDATION is 36-4104629.
- Is RUNDGREN FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1997.
- Are donations to RUNDGREN FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does RUNDGREN FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of RUNDGREN FOUNDATION due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did RUNDGREN FOUNDATION last file with the IRS?
- The latest return in the IRS public files is the 990-PF for the year ended December 2025.
- Who are the officers and directors of RUNDGREN FOUNDATION?
- The 990-PF for the year ended December 31, 2025 lists 3 people; 1 received compensation from the organization, the highest $30,000 (WAYNE W HAACK, PRESIDENT).
- How much revenue does RUNDGREN FOUNDATION have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $119,554, expenses of $213,310 and total assets of $2,301,584 at year end.
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