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Nonprofit · EIN 38-3973256

TANG FUND

Tax-exempt · NEW YORK, NY 10176

Financials

$4.6M$7.4M2023$20.2M$8.1M2024$3M$18.2M2025
Revenue Expenses · by fiscal year end
Financials of TANG FUND by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990-PF$3,036,108$18,246,059-$15,209,951$38,837,287$0$38,837,287
December 31, 2024990-PF$20,199,325$8,109,599$12,089,726$54,014,575$0$54,014,575
December 31, 2023990-PF$4,645,639$7,365,434-$2,719,795$43,613,253$0$43,613,253
Financial details: 990-PF for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$0
Dividends
$289,525
Interest
$127,750
Net gain from sales of assets
$2,617,979
Other income
$854

Expenses

Grants and similar amounts paid
$17,935,511
Compensation of officers, directors and key employees
$0
Disbursements for charitable purposes
$17,941,253
Excise tax on investment income
$39,061

Balance sheet and other

Total assets, start of year
$54,014,575
Total assets, end of year
$38,837,287
Total liabilities, end of year
$0
Net assets, end of year
$38,837,287
Fair market value of assets
$149,781,308
Qualifying distributions
$17,941,253
Net investment income
$3,036,108

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 December 31, 2025, highest compensation first.

NameTitleHours / weekCompensation
OSCAR L TANG
551 FIFTH AVE 33FL, NEW YORK, NY 10176
PRESIDENT2$0
HSIN-MEI AGNES HSU
551 FIFTH AVE 33FL, NEW YORK, NY 10176
DIRECTOR/VICE PRESIDENT1$0
GWENN S WINKHAUS
551 FIFTH AVE 33FL, NEW YORK, NY 10176
SECRETARY/TREASURER1$0
CATHERINE L WORNOM
551 FIFTH AVE 33FL, NEW YORK, NY 10176
ASST. SECRETARY2$0
990-PF for the year ended December 31, 2024: 4 people
NameTitleHours / weekCompensation
OSCAR L TANG
551 FIFTH AVE 33FL, NEW YORK, NY 10176
PRESIDENT2$0
HSIN-MEI AGNES HSU
551 FIFTH AVE 33FL, NEW YORK, NY 10176
DIRECTOR/VICE PRESIDENT1$0
GWENN S WINKHAUS
551 FIFTH AVE 33FL, NEW YORK, NY 10176
SECRETARY/TREASURER1$0
CATHERINE L WORNOM
551 FIFTH AVE 33FL, NEW YORK, NY 10176
ASST. SECRETARY2$0
990-PF for the year ended December 31, 2023: 4 people
NameTitleHours / weekCompensation
OSCAR L TANG
551 FIFTH AVE 33FL, NEW YORK, NY 10176
PRESIDENT2$0
HSIN-MEI AGNES HSU
551 FIFTH AVE 33FL, NEW YORK, NY 10176
DIRECTOR/VICE PRESIDENT1$0
GWENN S WINKHAUS
551 FIFTH AVE 33FL, NEW YORK, NY 10176
SECRETARY/TREASURER1$0
CATHERINE L WORNOM
551 FIFTH AVE 33FL, NEW YORK, NY 10176
ASST. SECRETARY2$0

Address and contacts

Address (IRS master file)
551 5TH AVE FL 33, NEW YORK, NY 10176-3399
In care of
% TANCURA LLC
Signed the 990-PF
OSCAR L TANG, PRESIDENT
Phone
(646) 701-6084
Return prepared by
TANCURA 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 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-PF on file
2024December 31, 2024May 15, 2025990-PF on file
2023December 31, 2023May 15, 2024990-PF on file

IRS record

EIN
38-3973256
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
2015
Accounting year ends
December
Files
Form 990-PF
Assets (IRS master file)
$38,837,287
Income (IRS master file)
$5,292,934

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-PFDecember 2025$3,036,108$18,246,059$38,837,287XML
990-PFDecember 2024$20,199,325$8,109,599$54,014,575XML
990-PFDecember 2023$4,645,639$7,365,434$43,613,253XML
990-PFDecember 2022–––IRS
990-PFDecember 2021–––IRS
990-PFDecember 2020–––IRS
990-PFDecember 2018–––IRS
990-PFDecember 2017–––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 38-3973256).

Questions about TANG FUND

What is the EIN of TANG FUND?
The employer identification number (EIN) of TANG FUND is 38-3973256.
Is TANG FUND tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2015.
Are donations to TANG FUND tax-deductible?
Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
Which annual return does TANG FUND file?
Form 990-PF. Private foundations file every year.
When is the next return of TANG FUND 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 TANG FUND last file with the IRS?
The latest return in the IRS public files is the 990-PF for the year ended December 2025.
Who are the officers and directors of TANG FUND?
The 990-PF for the year ended December 31, 2025 lists 4 people; 0 received compensation from the organization.
How much revenue does TANG FUND have?
On its 990-PF for the year ended December 31, 2025 it reported revenue of $3,036,108, expenses of $18,246,059 and total assets of $38,837,287 at year end.

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