Private Foundation

THE SHIRLEY AND BILL KOLOSEIKE FDN

THE SHIRLEY AND BILL KOLOSEIKE FDN is a Private Foundation headquartered in DOWNERS GROVE, IL. Financial data from the 2024 filing: $491K revenue, $212K expenses, $8.2M total assets. IRS filings disclose 15 grants awarded by this foundation, totaling roughly $1.1M.

EIN: 260752500 DOWNERS GROVE, IL Latest filing: 2024

Total Revenue$491K

Total Expenses$212K

Total Assets$8.2M

Grants Given15

Grant Total$1.1M

Filing Years2020–2024

Sample Grants Given

BREAKTHROUGH T1D

NEW YORK, NY · 2024

UNRESTRICTED CHARITABLE GRANT

$100,000

DIVEHEART

DOWNERS GROVE, IL · 2024

UNRESTRICTED CHARITABLE GRANT

$20,000

SPECTRIOS INSTITUTE FOR LOW VISION

WHEATON, IL · 2024

UNRESTRICTED CHARITABLE GRANT

$20,000

JUVENILE DIABETES RESEARCH FOUNDATION

PHOENIX, AZ · 2023

IN SUPPORT OF JUVENILE DIABETES RESEARCH

$100,000

JDRF

PHOENIX, AZ · 2022

IN SUPPORT OF JUVENILE DIABETES RESEARCH

$100,000

Showing up to 5 of 15 total records — full history available with membership.

Officers & Directors

TREASURER Judith A Spellman

VICE PRESIDENT Mark J Koloseike

VICE PRESIDENT Nina B Koloseike

PRESIDENT/SECRETARY William A Koloseike

Officer compensation and complete director data available with membership.

Top Grant Purposes

IN SUPPORT OF JUVENILE DIABETES RESEARCH

$600,000 6 grants

GENERAL PURPOSE

$150,000 2 grants

UNRESTRICTED CHARITABLE GRANT

$140,000 3 grants

IN SUPPORT OF THE SHIRLEY KOLOSEIKE BREAST CANCER RESEARCH AWARD.

$100,000 2 grants

IN SUPPORT OF THE BIOLOGICAL RESEARCH

$50,000 1 grant

Financial Trends

Year	Revenue	Expenses	Assets
2024	$491K	$212K	$8.2M
2023	$580K	$142K	$7.9M
2022	$1.0M	$133K	$7.5M
2021	$1.9M	$137K	$6.6M
2020	$243K	$175K	$4.9M

Between 2020 and 2024, reported annual revenue grew from $243K to $491K (+102%), with total assets most recently reported at $8.2M.

Interactive year-over-year charts and full filing details available with membership.

Grant Geography

Grants from this foundation were reported to recipients in AZ, IL, NY.

AZILNY

Full geographic grant map with state-by-state breakdown available with membership.

See the full picture for THE SHIRLEY AND BILL KOLOSEIKE FDN

Complete financials, all 15 grant records, officer compensation, year-over-year trend charts, a geographic grant map, and data exports — across 498,000+ organizations.

Full Financial History Complete Grant Activity Officer Compensation Year-over-Year Charts Geographic Grant Map Data Exports