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Nonprofit · EIN 20-1074874

PROMETHEAS CHARITABLE TR

Also known as LIDDELL FRANK A JR TTEE

Tax-exempt · HOUSTON, TX 77007

Financials

$526K$544K2023$495K$522K2024$392K$526K2025
Revenue Expenses · by fiscal year end
Financials of PROMETHEAS CHARITABLE TR by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990-PF$391,977$526,043-$134,066$3,360,161$0$3,360,161
December 31, 2024990-PF$495,474$521,713-$26,239$3,494,606$0$3,494,606
December 31, 2023990-PF$525,937$544,161-$18,224$3,527,276$0$3,527,276
Financial details: 990-PF for the year ended December 31, 2025

Revenue

Dividends
$110,301
Interest
$169
Net gain from sales of assets
$281,507

Expenses

Grants and similar amounts paid
$401,775
Compensation of officers, directors and key employees
$44,200
Disbursements for charitable purposes
$451,654
Excise tax on investment income
$880

Balance sheet and other

Total assets, start of year
$3,494,606
Total assets, end of year
$3,360,161
Total liabilities, end of year
$0
Net assets, end of year
$3,360,161
Fair market value of assets
$6,397,324
Qualifying distributions
$451,654
Net investment income
$137,705

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
ELLEN BLAINE ADAMS
5535 MEMORIAL DR STE F 560, HOUSTON, TX 77007
TRUSTEE20$44,200
LISE M LIDDELL
5535 MEMORIAL DR STE F 560, HOUSTON, TX 77007
TRUSTEE0$0
FRANK A LIDDELL III
5535 MEMORIAL DR STE F 560, HOUSTON, TX 77007
TRUSTEE0$0
ROBERT B LIDDELL
5535 MEMORIAL DR STE F 560, HOUSTON, TX 77007
TRUSTEE0$0
990-PF for the year ended December 31, 2024: 4 people
NameTitleHours / weekCompensation
ELLEN BLAINE ADAMS
5535 MEMORIAL DR STE F 560, HOUSTON, TX 77007
TRUSTEE20$38,400
LISE M LIDDELL
5535 MEMORIAL DR STE F 560, HOUSTON, TX 77007
TRUSTEE0$0
FRANK A LIDDELL III
5535 MEMORIAL DR STE F 560, HOUSTON, TX 77007
TRUSTEE0$0
ROBERT B LIDDELL
5535 MEMORIAL DR STE F 560, HOUSTON, TX 77007
TRUSTEE0$0
990-PF for the year ended December 31, 2023: 4 people
NameTitleHours / weekCompensation
ELLEN BLAINE ADAMS
5535 MEMORIAL DR STE F 560, HOUSTON, TX 77007
TRUSTEE20$38,400
LISE M LIDDELL
5535 MEMORIAL DR STE F 560, HOUSTON, TX 77007
TRUSTEE0$0
FRANK A LIDDELL III
5535 MEMORIAL DR STE F 560, HOUSTON, TX 77007
TRUSTEE0$0
ROBERT B LIDDELL
5535 MEMORIAL DR STE F 560, HOUSTON, TX 77007
TRUSTEE0$0

Address and contacts

Address (IRS master file)
5535 MEMORIAL DR STE F560, HOUSTON, TX 77007-8021
Signed the 990-PF
ELLEN BLAINE ADAMS, TRUSTEE
Phone
(713) 705-6445
Return prepared by
PATRICK A FALCON PC

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
20-1074874
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
2004
Accounting year ends
December
Files
Form 990-PF
Assets (IRS master file)
$3,360,161
Income (IRS master file)
$591,469

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-PFDecember 2025$391,977$526,043$3,360,161XML
990-PFDecember 2024$495,474$521,713$3,494,606XML
990-PFDecember 2023$525,937$544,161$3,527,276XML
990-PFDecember 2022–––IRS
990-PFDecember 2021–––IRS
990-PFDecember 2020–––IRS
990-PFDecember 2019–––IRS
990-PFDecember 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 20-1074874).

Questions about PROMETHEAS CHARITABLE TR

What is the EIN of PROMETHEAS CHARITABLE TR?
The employer identification number (EIN) of PROMETHEAS CHARITABLE TR is 20-1074874.
Is PROMETHEAS CHARITABLE TR tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2004.
Are donations to PROMETHEAS CHARITABLE TR tax-deductible?
Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
Which annual return does PROMETHEAS CHARITABLE TR file?
Form 990-PF. Private foundations file every year.
When is the next return of PROMETHEAS CHARITABLE TR 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 PROMETHEAS CHARITABLE TR 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 PROMETHEAS CHARITABLE TR?
The 990-PF for the year ended December 31, 2025 lists 4 people; 1 received compensation from the organization, the highest $44,200 (ELLEN BLAINE ADAMS, TRUSTEE).
How much revenue does PROMETHEAS CHARITABLE TR have?
On its 990-PF for the year ended December 31, 2025 it reported revenue of $391,977, expenses of $526,043 and total assets of $3,360,161 at year end.

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