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Nonprofit · EIN 26-4814733

CHILDRENS PSC FOUNDATION

Tax-exempt · MENLO PARK, CA 94026

Financials

$48K$113K2024$111K$133K2025
Revenue Expenses · by fiscal year end
Financials of CHILDRENS PSC FOUNDATION by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990$110,500$132,935-$22,435$624,363$0$624,363
December 31, 2024990$48,094$113,162-$65,068$646,798$0$646,798
Financial details: 990 for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$102,223
Program service revenue
$0
Investment income
$8,277
Other revenue
$0

Expenses

Grants and similar amounts paid
$132,935
Compensation of officers, directors and key employees
$0
Salaries, compensation and benefits (total)
$0
Professional fundraising fees
$0
Program services (functional)
$132,760
Management and general (functional)
$370

Balance sheet and other

Total assets, start of year
$646,798
Total assets, end of year
$624,363
Total liabilities, end of year
$0
Net assets, end of year
$624,363
Gross receipts
$110,500
Employees
0
Volunteers
4
Year formed
2009
State of legal domicile
CA

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.

NameTitleHours / weekCompensation
Steve WadsworthPresident
Trustee or director, Officer
1$0
Wylie TolletteTreasurer
Trustee or director, Officer
1$0
Traci PetersonDirector
Trustee or director
1$0
Kathy SpenceDirector
Trustee or director
1$0
990 for the year ended December 31, 2024: 4 people
NameTitleHours / weekCompensation
Steve WadsworthPresident
Trustee or director, Officer
1$0
Wylie TolletteTreasurer
Trustee or director, Officer
1$0
Traci PetersonDirector
Trustee or director
1$0
Kathy SpenceDirector
Trustee or director
1$0

Address and contacts

Address (IRS master file)
PO BOX 1328, MENLO PARK, CA 94026-1328
In care of
% STEVE WADSWORTH
Mailing address (990-N for 2021)
271 WATER VIEW WAY, Folsom CA 95630
Principal officer (990 for 2025)
Steve Wadsworth, PO BOX 1328, MENLO PARK, CA 940261328
Principal officer (990-N for 2021)
Wylie Allerton Tollette, 271 Water View Way, Folsom CA 95630
Signed the 990
Wylie A Tollette, Treasurer
Phone
(916) 934-3349

Mission

The Childrens PSC Foundations mission is to fund medical research into the causes and cure for Primary Sclerosing Cholangitis a disease of the liver bile ducts.

990 for the year ended December 31, 2025

Program accomplishments

  • The Childrens PSC Foundation supported a clinical trial at Stanford University studying the use of statin drugs in combination with other therapies on treatment of Childrens PSC. These trials are ongoing.
    Expenses $37,500 · grants $37,500
  • The Childrens PSC Foundation supported a clinical trial at Yale University analyzing the changes in fecal microbiome composition from PSC patients undergoing oral vancomycin therapy. These trials are ongoing.
    Expenses $70,260 · grants $70,260
  • The Childrens PSC Foundation is supporting a trial with Biome Bank an Australian biotech company on the effectiveness of fecal transplantation for treatment of PSC. These trials are ongoing.
    Expenses $25,000 · grants $25,000

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025December 31, 2025May 15, 2026990 on file
2024December 31, 2024May 15, 2025990 on file
2023December 31, 2023May 15, 2024990 on file

IRS record

EIN
26-4814733
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
2009
Accounting year ends
December
Files
Form 990 or 990-EZ
Category (NTEE)
Medical research (H12)
Assets (IRS master file)
$624,363
Income (IRS master file)
$110,500

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2025–––IRS
990December 2024–––IRS
990December 2023$510,382$102,885$711,865IRS
990-EZDecember 2022–––IRS
990-N for 2021
Officer: Wylie Allerton Tollette
December 31, 2021≤ $50,000 receipts––e-Postcard
990-EZDecember 2021–––IRS
990December 2020–––IRS

990-N: the IRS publishes only the latest e-Postcard per organization; earlier years appear here as 990.tax collects the monthly files. 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.

Questions about CHILDRENS PSC FOUNDATION

What is the EIN of CHILDRENS PSC FOUNDATION?
The employer identification number (EIN) of CHILDRENS PSC FOUNDATION is 26-4814733.
Is CHILDRENS PSC FOUNDATION tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2009.
Are donations to CHILDRENS PSC FOUNDATION tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does CHILDRENS PSC FOUNDATION file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of CHILDRENS PSC 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 CHILDRENS PSC 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 CHILDRENS PSC FOUNDATION?
The 990 for the year ended December 31, 2025 names Steve Wadsworth.
Who are the officers and directors of CHILDRENS PSC FOUNDATION?
The 990 for the year ended December 31, 2025 lists 4 people; 0 received compensation from the organization.
How much revenue does CHILDRENS PSC FOUNDATION have?
On its 990 for the year ended December 31, 2025 it reported revenue of $110,500, expenses of $132,935 and total assets of $624,363 at year end.

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