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Nonprofit · EIN 13-6105414

WILLIAM J MATHESON FOUNDATION INC

Tax-exempt · NEW YORK, NY 10024

Financials

$93K$108K2022$119K$258K2023$213K$374K2024
Revenue Expenses · by fiscal year end
Financials of WILLIAM J MATHESON FOUNDATION INC by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
June 30, 2025990-PF$213,369$373,780-$160,411$1,463,492$0$1,463,492
June 30, 2024990-PF$118,838$257,770-$138,932$1,623,903$0$1,623,903
June 30, 2023990-PF$93,166$107,910-$14,744$1,762,835$0$1,762,835
Financial details: 990-PF for the year ended June 30, 2025

Revenue

Dividends
$29,696
Net gain from sales of assets
$183,673

Expenses

Grants and similar amounts paid
$315,000
Compensation of officers, directors and key employees
$0
Disbursements for charitable purposes
$359,400
Excise tax on investment income
$2,780

Balance sheet and other

Total assets, start of year
$1,623,903
Total assets, end of year
$1,463,492
Total liabilities, end of year
$0
Net assets, end of year
$1,463,492
Fair market value of assets
$2,372,077
Qualifying distributions
$359,400
Net investment income
$213,369

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 June 30, 2025, highest compensation first.

NameTitleHours / weekCompensation
DR ROBERT SOLOMON
630 W 168TH STREET, NEW YORK, NY 10032
PRESIDENT4$0
PETER KRULEWITCH
225 WEST 86TH STREET 104, NEW YORK, NY 10024
VP & TREASURER4$0
DR ANNE MOORE
225 WEST 86TH STREET 104, NEW YORK, NY 10024
DIRECTOR1$0
PATRICIA L FRANCY
225 WEST 86TH STREET 104, NEW YORK, NY 10024
DIRECTOR1$0
DR ANDREW LASSMAN
225 WEST 86TH STREET 104, NEW YORK, NY 10024
DIRECTOR1$0
DR ROSHAN P SHAH
225 WEST 86TH STREET 104, NEW YORK, NY 10024
DIRECTOR1$0
DR ANIL RUSTGI
225 WEST 86TH STREET 104, NEW YORK, NY 10024
DIRECTOR1$0
MR JEFFREY PRIEST
225 WEST 86TH STREET 104, NEW YORK, NY 10024
DIRECTOR1$0
990-PF for the year ended June 30, 2024: 7 people
NameTitleHours / weekCompensation
DR ROBERT SOLOMON
630 W 168TH STREET, NEW YORK, NY 10032
PRESIDENT4$0
PETER KRULEWITCH
225 WEST 86TH STREET 104, NEW YORK, NY 10024
VP & TREASURER4$0
DR ANNE MOORE
225 WEST 86TH STREET 104, NEW YORK, NY 10024
DIRECTOR1$0
DR THOMAS Q MORRIS
225 WEST 86TH STREET 104, NEW YORK, NY 10024
DIRECTOR1$0
PATRICIA L FRANCY
225 WEST 86TH STREET 104, NEW YORK, NY 10024
DIRECTOR1$0
DR ANDREW LASSMAN
225 WEST 86TH STREET 104, NEW YORK, NY 10024
DIRECTOR1$0
DR ROSHAN P SHAH
225 WEST 86TH STREET 104, NEW YORK, NY 10024
DIRECTOR1$0
990-PF for the year ended June 30, 2023: 7 people
NameTitleHours / weekCompensation
DR ROBERT SOLOMON
630 W 168TH STREET, NEW YORK, NY 10032
PRESIDENT4$0
PETER KRULEWITCH
225 WEST 86TH STREET 104, NEW YORK, NY 10024
VP & TREASURER4$0
DR ANNE MOORE
225 WEST 86TH STREET 104, NEW YORK, NY 10024
DIRECTOR1$0
DR THOMAS Q MORRIS
225 WEST 86TH STREET 104, NEW YORK, NY 10024
DIRECTOR1$0
PATRICIA L FRANCY
225 WEST 86TH STREET 104, NEW YORK, NY 10024
DIRECTOR1$0
DR ANDREW LASSMAN
225 WEST 86TH STREET 104, NEW YORK, NY 10024
DIRECTOR1$0
DR ROSHAN P SHAH
225 WEST 86TH STREET 104, NEW YORK, NY 10024
DIRECTOR1$0

Address and contacts

Address (IRS master file)
225 W 86TH ST APT 104, NEW YORK, NY 10024-3393
In care of
% PETER KRULEWITCH
Signed the 990-PF
PETER KRULEWITCH, VP & TREASURER
Phone
(212) 624-9509
Return prepared by
CITRIN COOPERMAN ADVISORS LLC

What it must file and when

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

Tax yearYear endedDueIRS public records
2025June 30, 2026November 16, 2026Not due yet
2024June 30, 2025November 17, 2025990-PF on file
2023June 30, 2024November 15, 2024990-PF on file

IRS record

EIN
13-6105414
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
1955
Accounting year ends
June
Files
Form 990-PF
Category (NTEE)
Education (B43I)
Assets (IRS master file)
$1,463,492
Income (IRS master file)
$557,559

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-PFJune 2025$213,369$373,780$1,463,492IRS
990-PFJune 2024$118,838$257,770$1,623,903IRS
990-PFJune 2023$93,166$107,910$1,762,835XML
990-PFJune 2022–––IRS
990-PFJune 2021–––IRS
990-PFJune 2020–––IRS
990-PFJune 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 13-6105414).

Questions about WILLIAM J MATHESON FOUNDATION INC

What is the EIN of WILLIAM J MATHESON FOUNDATION INC?
The employer identification number (EIN) of WILLIAM J MATHESON FOUNDATION INC is 13-6105414.
Is WILLIAM J MATHESON FOUNDATION INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1955.
Are donations to WILLIAM J MATHESON FOUNDATION INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
Which annual return does WILLIAM J MATHESON FOUNDATION INC file?
Form 990-PF. Private foundations file every year.
When is the next return of WILLIAM J MATHESON FOUNDATION INC due?
The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did WILLIAM J MATHESON FOUNDATION INC last file with the IRS?
The latest return in the IRS public files is the 990-PF for the year ended June 2025.
Who are the officers and directors of WILLIAM J MATHESON FOUNDATION INC?
The 990-PF for the year ended June 30, 2025 lists 8 people; 0 received compensation from the organization.
How much revenue does WILLIAM J MATHESON FOUNDATION INC have?
On its 990-PF for the year ended June 30, 2025 it reported revenue of $213,369, expenses of $373,780 and total assets of $1,463,492 at year end.

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