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Nonprofit · EIN 43-1847629

STRIBLING FOUNDATION INC

Tax-exempt · WINNETKA, IL 60093

Financials

$96K$110K2023$222K$122K2024$194K$138K2025
Revenue Expenses · by fiscal year end
Financials of STRIBLING FOUNDATION INC by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
March 31, 2026990-PF$194,273$137,791$56,482$1,979,166$0$1,979,166
March 31, 2025990-PF$221,572$121,900$99,672$1,945,540$0$1,945,540
March 31, 2024990-PF$95,840$109,889-$14,049$1,845,868$0$1,845,868
Financial details: 990-PF for the year ended March 31, 2026

Revenue

Dividends
$49,480
Net gain from sales of assets
$144,793

Expenses

Grants and similar amounts paid
$119,480
Compensation of officers, directors and key employees
$0
Disbursements for charitable purposes
$119,480
Excise tax on investment income
$2,446

Balance sheet and other

Total assets, start of year
$1,945,540
Total assets, end of year
$1,979,166
Total liabilities, end of year
$0
Net assets, end of year
$1,979,166
Fair market value of assets
$2,180,268
Qualifying distributions
$119,480
Net investment income
$194,273

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 March 31, 2026, highest compensation first.

NameTitleHours / weekCompensation
ANN KOSTER ANTONIOU
7048 WESTMORELAND DRIVE, ST LOUIS, MO 63130
DIRECTOR0$0
R STRIBLING KOSTER
801 BRYANT AVE, WINNETKA, IL 60093
PRESIDENT/SEC/TREAS0$0
WINIFRED RUNGE STRIBLING
1318 WEBSTER DRIVE, MEXICO, MO 65265
DIRECTOR0$0
990-PF for the year ended March 31, 2025: 3 people
NameTitleHours / weekCompensation
R STRIBLING KOSTER
801 BRYANT AVE, WINNETKA, IL 60093
PRESIDENT/SE0$0
ANN KOSTER ANTONIOU
7048 WESTMORELAND DRIVE, ST LOUIS, MO 63130
DIRECTOR0$0
WINIFRED RUNGE STRIBLING
1318 WEBSTER DRIVE, MEXICO, MO 65265
DIRECTOR0$0
990-PF for the year ended March 31, 2024: 3 people
NameTitleHours / weekCompensation
R STRIBLING KOSTER
801 BRYANT AVE, WINNETKA, IL 60093
PRESIDENT/SE0$0
ANN KOSTER ANTONIOU
7048 WESTMORELAND DRIVE, ST LOUIS, MO 63130
DIRECTOR0$0
WINIFRED RUNGE STRIBLING
1318 WEBSTER DRIVE, MEXICO, MO 65265
DIRECTOR0$0

Address and contacts

Address (IRS master file)
801 BRYANT AVE, WINNETKA, IL 60093-1901
In care of
% MHC CPAS LLC
Signed the 990-PF
R STRIBLING KOSTER, PRESIDENT
Phone
(312) 876-8821
Return prepared by
HOOD PROFESSIONAL SERVICES

What it must file and when

IRS records say it files Form 990-PF. Private foundations file every year. Its accounting year ends in March, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025March 31, 2026August 17, 2026990-PF on file
2024March 31, 2025August 15, 2025990-PF on file
2023March 31, 2024August 15, 2024990-PF on file

IRS record

EIN
43-1847629
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
1999
Accounting year ends
March
Files
Form 990-PF
Assets (IRS master file)
$1,979,166
Income (IRS master file)
$631,405

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-PFMarch 2026$194,273$137,791$1,979,166XML
990-PFMarch 2025$221,572$121,900$1,945,540XML
990-PFMarch 2024$95,840$109,889$1,845,868XML
990-PFMarch 2023–––IRS
990-PFMarch 2022–––IRS
990-PFMarch 2021–––IRS
990-PFMarch 2019–––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 43-1847629).

Questions about STRIBLING FOUNDATION INC

What is the EIN of STRIBLING FOUNDATION INC?
The employer identification number (EIN) of STRIBLING FOUNDATION INC is 43-1847629.
Is STRIBLING FOUNDATION INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1999.
Are donations to STRIBLING FOUNDATION INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
Which annual return does STRIBLING FOUNDATION INC file?
Form 990-PF. Private foundations file every year.
When is the next return of STRIBLING FOUNDATION INC due?
The return for tax year 2026 (the year ending March 31, 2027) is due August 16, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did STRIBLING FOUNDATION INC last file with the IRS?
The latest return in the IRS public files is the 990-PF for the year ended March 2026.
Who are the officers and directors of STRIBLING FOUNDATION INC?
The 990-PF for the year ended March 31, 2026 lists 3 people; 0 received compensation from the organization.
How much revenue does STRIBLING FOUNDATION INC have?
On its 990-PF for the year ended March 31, 2026 it reported revenue of $194,273, expenses of $137,791 and total assets of $1,979,166 at year end.

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