Nonprofit · EIN 26-4436442
SOCIETY FOR FREE RADICAL BIOLOGY AND MEDICINE FOUNDATION
Tax-exempt · WARRENVILLE, IL 60555
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $1,490 | $6,988 | -$5,498 | $126,981 | $0 | $126,981 |
| December 31, 2024 | 990 | $2,653 | $1,618 | $1,035 | $132,479 | $0 | $132,479 |
| December 31, 2023 | 990 | $65,776 | $10,817 | $54,959 | $131,444 | $0 | $131,444 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $250
- Program service revenue
- $0
- Investment income
- $1,240
- Other revenue
- $0
Expenses
- Grants and similar amounts paid
- $0
- Salaries, compensation and benefits (total)
- $0
- Professional fundraising fees
- $0
- Accounting fees
- $1,070
- Program services (functional)
- $5,500
- Management and general (functional)
- $1,488
Balance sheet and other
- Total assets, start of year
- $132,479
- Total assets, end of year
- $126,981
- Total liabilities, end of year
- $0
- Net assets, end of year
- $126,981
- Net assets without donor restrictions
- $126,981
- Gross receipts
- $1,490
- Employees
- 0
- Volunteers
- 5
- Year formed
- 2009
- State of legal domicile
- IL
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 for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| PHYLLIS DENNERY | DIRECTOR Trustee or director | 1 | $0 |
| RALF BRANDES | DIRECTOR Trustee or director | 1 | $0 |
| BRIAN DRANKA | DIRECTOR Trustee or director | 1 | $0 |
| DARET ST CLAIR | DIRECTOR Trustee or director | 1 | $0 |
| VICTOR DARLEY-USMAR | PRESIDENT Trustee or director, Officer | 2 | $0 |
| KENT LINDEMAN | EXECUTIVE DIRECTOR Trustee or director, Officer | 2 | $0 |
990 for the year ended December 31, 2024: 6 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| PHYLLIS DENNERY MD | DIRECTOR Trustee or director | 1 | $0 |
| RALF BRANDES MD | DIRECTOR Trustee or director | 1 | $0 |
| BRIAN DRANKA PHD | DIRECTOR Trustee or director | 1 | $0 |
| DARET ST CLAIR PHD | DIRECTOR Trustee or director | 1 | $0 |
| VICTOR DARLEY-USMAR PHD | PRESIDENT Trustee or director, Officer | 1 | $0 |
| KENT LINDEMAN | EXECUTIVE DI Officer | 1 | $0 |
990 for the year ended December 31, 2023: 6 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| PHYLLIS DENNERY MD | DIRECTOR Trustee or director | 1 | $0 |
| RALF BRANDES MD | DIRECTOR Trustee or director | 1 | $0 |
| BRIAN DRANKA PHD | DIRECTOR Trustee or director | 1 | $0 |
| DARET ST CLAIR PHD | DIRECTOR Trustee or director | 1 | $0 |
| VICTOR DARLEY-USMAR PHD | PRESIDENT Trustee or director, Officer | 1 | $0 |
| KENT LINDEMAN | EXECUTIVE DI Officer | 1 | $0 |
Address and contacts
- Address (IRS master file)
- PO BOX 1488, WARRENVILLE, IL 60555-7488
- In care of
- % KENT LINDEMAN
- Principal officer (990 for 2025)
- KENT LINDEMAN, PO BOX 1488, WARRENVILLE, IL 60555
- Signed the 990
- KENT LINDEMAN, EXECUTIVE DIRECTOR
- Phone
- (312) 618-0992
- Website
- WWW.SFRBM.ORG
- Return prepared by
- BELLENFANT PLLC
Mission
FOSTER AND SUPPORT THE SOCIETY FOR REDOX BIOLOGY AND MEDICINES (SFRBM) EDUCATION, TRAINING, AND RESEARCH PROGRAMS, AS WELL AS FUND NEW DEVELOPMENT AND INITIATIVES IN THESE AREAS.
Program accomplishments
- SUPPORT FOR ANNUAL MEETING OF THE SOCIETY FOR REDOX BIOLOGY AND MEDICINE.Expenses $5,500
What it must file and when
IRS records say it files Form 990-N (e-Postcard). Gross receipts normally $50,000 or less. 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 on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990 on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990 on file |
IRS record
- EIN
- 26-4436442
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (170(b)(1)(A)(vi))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 2010
- Accounting year ends
- December
- Files
- Form 990-N (e-Postcard)
- Category (NTEE)
- Philanthropy, voluntarism and grantmaking foundations (T30)
- Assets (IRS master file)
- $126,981
- Income (IRS master file)
- $1,490
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $1,490 | $6,988 | $126,981 | XML |
| 990 | December 2024 | $2,653 | $1,618 | $132,479 | IRS |
| 990 | December 2023 | $65,776 | $10,817 | $131,444 | XML |
| 990 | December 2022 | $7,521 | $1,690 | $76,485 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990 | 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 26-4436442).
Questions about SOCIETY FOR FREE RADICAL BIOLOGY AND MEDICINE FOUNDATION
- What is the EIN of SOCIETY FOR FREE RADICAL BIOLOGY AND MEDICINE FOUNDATION?
- The employer identification number (EIN) of SOCIETY FOR FREE RADICAL BIOLOGY AND MEDICINE FOUNDATION is 26-4436442.
- Is SOCIETY FOR FREE RADICAL BIOLOGY AND MEDICINE FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2010.
- Are donations to SOCIETY FOR FREE RADICAL BIOLOGY AND MEDICINE FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does SOCIETY FOR FREE RADICAL BIOLOGY AND MEDICINE FOUNDATION file?
- Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
- When is the next return of SOCIETY FOR FREE RADICAL BIOLOGY AND MEDICINE 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 SOCIETY FOR FREE RADICAL BIOLOGY AND MEDICINE FOUNDATION last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2025.
- Who is the principal officer of SOCIETY FOR FREE RADICAL BIOLOGY AND MEDICINE FOUNDATION?
- The 990 for the year ended December 31, 2025 names KENT LINDEMAN.
- Who are the officers and directors of SOCIETY FOR FREE RADICAL BIOLOGY AND MEDICINE FOUNDATION?
- The 990 for the year ended December 31, 2025 lists 6 people; 0 received compensation from the organization.
- How much revenue does SOCIETY FOR FREE RADICAL BIOLOGY AND MEDICINE FOUNDATION have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $1,490, expenses of $6,988 and total assets of $126,981 at year end.
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