Harris K And Lois G Oppenheimer Foundation

San Antonio, TX
Tax-exempt since June 1985
EIN: 74-2347610

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Type of Nonprofit

Designated as a 501(c)(3) Organizations for any of the following purposes: religious, educational, charitable, scientific, literary, testing for public safety, fostering national or international amateur sports competition (as long as it doesn't provide athletic facilities or equipment), or the prevention of cruelty to children or animals.

Donations to this organization are tax deductible.

Revenue

$301k (2025)

Expenses

$196k (2025)

Total Assets

$2.63M (2025)

Total Liabilities

$0 (2025)

Source: Form 990 tax filings from 2012 to 2025

Tax Filings by Year

Form 990 is an information return that most organizations claiming federal tax-exempt status must file yearly with the IRS. Nonprofit Explorer has IRS digitized Form 990 data for filings processed in 2012 and later. If this organization filed an amended return, it may not be reflected below. Duplicate download links may indicate a resubmission or amendment to this organization's original return. Form 990 data is from the IRS.

Fiscal Year Ending June
2025

Revenue

$300,736

Expenses

$196,378

Net Income

$104,358

Net Assets

$2,630,966

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$8,189	2.7%
Dividends	$95,323	31.7%
Sales of Assets	$197,224	65.6%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$171,582	87.4%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$2,630,966
Total Liabilities	$0
Net Assets	$2,630,966

Compensation

Key Employees and Officers	Compensation	Other
Claire O O'malley (President, Sec, Treasurer)	$0	$0
Pauline Weisberg (Vice President)	$0	$0
Alexander Harris Weisberg (Trustee)	$0	$0
Edward J O'malley (Trustee)	$0	$0
Daniel H O'malley (Trustee)	$0	$0

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990-PF

Filed on Nov. 17, 2025

Primary tax return for a private foundation's activities, finances, and governance

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Schedules ▼

XML

Fiscal Year Ending June
2024

Revenue

$123,188

Expenses

$183,269

Net Income

-$60,081

Net Assets

$2,553,382

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$2,330	1.9%
Dividends	$106,700	86.6%
Sales of Assets	$14,158	11.5%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$162,924	88.9%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$2,553,382
Total Liabilities	$0
Net Assets	$2,553,382

Compensation

Key Employees and Officers	Compensation	Other
Claire O O'malley (President, Sec, Treasurer)	$0	$0
Pauline Weisberg (Vice President)	$0	$0
Alexander Harris Weisberg (Trustee)	$0	$0
Edward J O'malley (Trustee)	$0	$0
Daniel H O'malley (Trustee)	$0	$0

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990-PF

Filed on May 8, 2025

Primary tax return for a private foundation's activities, finances, and governance

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Schedules ▼

XML

Fiscal Year Ending June
2023

Revenue

$89,030

Expenses

$198,165

Net Income

-$109,135

Net Assets

$2,581,963

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$3,493	3.9%
Dividends	$108,124	> 100%
Sales of Assets	-$22,587
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$178,134	89.9%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$2,581,963
Total Liabilities	$0
Net Assets	$2,581,963

Compensation

Key Employees and Officers	Compensation	Other
Claire O O'malley (President, Sec, Treasurer)	$0	$0
Pauline Weisberg (Vice President)	$0	$0
Alexander Harris Weisberg (Trustee)	$0	$0
Edward J O'malley (Trustee)	$0	$0
Daniel H O'malley (Trustee)	$0	$0

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990-PF

Filed on Dec. 21, 2023

Primary tax return for a private foundation's activities, finances, and governance

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Schedules ▼

PDF XML

Fiscal Year Ending June
2022

Revenue

$98,018

Expenses

$194,390

Net Income

-$96,372

Net Assets

$2,675,080

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$187	0.2%
Dividends	$85,062	86.8%
Sales of Assets	$12,769	13.0%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$171,197	88.1%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$2,675,080
Total Liabilities	$0
Net Assets	$2,675,080

Compensation

Key Employees and Officers	Compensation	Other
Claire O O'malley (President, Sec, Treasurer)	$0	$0
Pauline Weisberg (Vice President)	$0	$0
Alexander Harris Weisberg (Trustee)	$0	$0
Edward J O'malley (Trustee)	$0	$0
Daniel H O'malley (Trustee)	$0	$0

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990-PF

Filed on Nov. 14, 2022

Primary tax return for a private foundation's activities, finances, and governance

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Schedules ▼

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Fiscal Year Ending June
2021

Revenue

$142,542

Expenses

$165,976

Net Income

-$23,434

Net Assets

$2,769,329

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$1,191	0.8%
Dividends	$69,400	48.7%
Sales of Assets	$71,951	50.5%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$146,438	88.2%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$2,769,330
Total Liabilities	$1
Net Assets	$2,769,329

Compensation

Key Employees and Officers	Compensation	Other
Claire O O'malley (President, Sec, Treasurer)	$0	$0
Pauline Weisberg (Vice President)	$0	$0
Alexander Harris Weisberg (Trustee)	$0	$0
Edward J O'malley (Trustee)	$0	$0
Daniel H O'malley (Trustee)	$0	$0

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990-PF

Filed on Nov. 15, 2021

Primary tax return for a private foundation's activities, finances, and governance

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Schedules ▼

XML

Fiscal Year Ending June
2020

Revenue

$71,356

Expenses

$183,338

Net Income

-$111,982

Net Assets

$2,803,763

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$2,700	3.8%
Dividends	$85,316	> 100%
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$164,048	89.5%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$2,803,764
Total Liabilities	$1
Net Assets	$2,803,763

Compensation

Key Employees and Officers	Compensation	Other
Claire O O'malley (President, Sec, Treasurer)	$0	$0
Pauline Weisberg (Vice President)	$0	$0
Alexander Harris Weisberg (Trustee)	$0	$0
Edward J O'malley (Trustee)	$0	$0
Daniel H O'malley (Trustee)	$0	$0

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990-PF

Filed on Oct. 23, 2020

Primary tax return for a private foundation's activities, finances, and governance

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Fiscal Year Ending June
2019

Revenue

$81,054

Expenses

$174,272

Net Income

-$93,218

Net Assets

$2,920,206

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$3,299	4.1%
Dividends	$71,210	87.9%
Sales of Assets	$6,545	8.1%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$154,988	88.9%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$2,920,207
Total Liabilities	$1
Net Assets	$2,920,206

Compensation

Key Employees and Officers	Compensation	Other
Claire O O'malley (President, Sec, Treasurer)	$0	$0
Pauline Weisberg (Vice President)	$0	$0
Alexander Harris Weisberg (Trustee)	$0	$0
Edward J O'malley (Trustee)	$0	$0
Daniel H O'malley (Trustee)	$0	$0

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990-PF

Filed on Jan. 29, 2020

Primary tax return for a private foundation's activities, finances, and governance

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Schedules ▼

PDF XML

Fiscal Year Ending June
2018

Revenue

$106,560

Expenses

$160,653

Net Income

-$54,093

Net Assets

$3,024,922

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$71,250	66.9%
Sales of Assets	$35,310	33.1%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$158,453	98.6%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$3,024,922
Total Liabilities	$0
Net Assets	$3,024,922

Compensation

Key Employees and Officers	Compensation	Other
Claire O'malley (President,Sec,Treasurer)	$0	$0
Pauline Weisberg (Vice President)	$0	$0
Alexander Harris Weisberg (Trustee)	$0	$0
Edward J O'malley (Trustee)	$0	$0
Daniel H O'malley (Trustee)	$0	$0

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990-PF

Filed on Oct. 4, 2018

Primary tax return for a private foundation's activities, finances, and governance

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Schedules ▼

XML

Fiscal Year Ending June
2017

Revenue

-$1,140

Expenses

$171,642

Net Income

-$172,782

Net Assets

$2,897,895

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$60,602
Sales of Assets	-$61,742
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$155,745	90.7%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$2,897,895
Total Liabilities	$0
Net Assets	$2,897,895

Compensation

Key Employees and Officers	Compensation	Other
Claire O'malley (President,Sec,Treasurer)	$0	$0
Pauline Weisberg (Vice President)	$0	$0
Alexander Harris Weisberg (Trustee)	$0	$0
Edward J O'malley (Trustee)	$0	$0
Daniel H O'malley (Trustee)	$0	$0

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990-PF

Filed on May 14, 2018

Primary tax return for a private foundation's activities, finances, and governance

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PDF XML

Fiscal Year Ending June
2016

Revenue

$22,923

Expenses

$207,143

Net Income

-$184,220

Net Assets

$3,276,947

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$91,159	> 100%
Sales of Assets	-$68,236
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$179,137	86.5%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$3,276,947
Total Liabilities	$0
Net Assets	$3,276,947

Compensation

Key Employees and Officers	Compensation	Other
Claire O'malley (President,Sec,Treasurer)	$0	$0
Pauline Weisberg (Vice President)	$0	$0
Alexander Harris Weisberg (Trustee)	$0	$0
Edward J O'malley (Trustee)	$0	$0
Daniel H O'malley (Trustee)	$0	$0

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990-PF

Filed on May 15, 2017

Primary tax return for a private foundation's activities, finances, and governance

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Fiscal Year Ending June
2015

Revenue

$133,882

Expenses

$201,883

Net Income

-$68,001

Net Assets

$3,463,640

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$106,323	79.4%
Sales of Assets	$27,559	20.6%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$167,442	82.9%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$3,463,640
Total Liabilities	$0
Net Assets	$3,463,640

Compensation

Key Employees and Officers	Compensation	Other
Claire O'malley (President,Sec,Treasurer)	$0	$0
Pauline Weisberg (Vice President)	$0	$0
Alexander Harris Weisberg (Trustee)	$0	$0
Edward J O'malley (Trustee)	$0	$0
Daniel H O'malley (Trustee)	$0	$0

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990-PF

Filed on May 11, 2016

Primary tax return for a private foundation's activities, finances, and governance

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Fiscal Year Ending June
2014

Revenue

$505,183

Expenses

$205,479

Net Income

$299,704

Net Assets

$3,531,641

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$30,866	6.1%
Sales of Assets	$474,317	93.9%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$178,354	86.8%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$3,531,641
Total Liabilities	$0
Net Assets	$3,531,641

Compensation

Key Employees and Officers	Compensation	Other
Claire O'malley (President,Sec,Treasurer)	$0	$0
Pauline Weisberg (Vice President)	$0	$0
Alexander Harris Weisberg (Trustee)	$0	$0
Edward J O'malley (Trustee)	$0	$0
Daniel H O'malley (Trustee)	$0	$0

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990-PF

Filed on May 14, 2015

Primary tax return for a private foundation's activities, finances, and governance

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Fiscal Year Ending June
2013

Revenue

$102,586

Expenses

$192,734

Net Income

-$90,148

Net Assets

$3,231,937

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$65,445	63.8%
Sales of Assets	$37,141	36.2%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$174,221	90.4%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$3,231,937
Total Liabilities	$0
Net Assets	$3,231,937

990-PF

Primary tax return for a private foundation's activities, finances, and governance

PDF

Fiscal Year Ending June
2012

Revenue

$111,311

Expenses

$191,301

Net Income

-$79,990

Net Assets

$3,322,085

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$91,027	81.8%
Sales of Assets	$20,282	18.2%
Other Income	$2	0.0%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$156,905	82.0%
Compensation of Officers*	$0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$3,322,085
Total Liabilities	$0
Net Assets	$3,322,085

Nonprofit Explorer includes summary data for nonprofit tax returns and full Form 990 documents, in both PDF and digital formats.

The summary data contains information processed by the IRS during the 2012-2019 calendar years; this generally consists of filings for the 2011-2018 fiscal years, but may include older records. This data release includes only a subset of what can be found in the full Form 990s.

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Updated March 23, 2026

Harris K And Lois G Oppenheimer Foundation

Organization summary

Type of Nonprofit

Summary charts: organization finances over time

Revenue $301k (2025)

Expenses $196k (2025)

Total Assets $2.63M (2025)

Total Liabilities $0 (2025)

Tax Filings by Year

Fiscal Year Ending June 2025

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending June 2024

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending June 2023

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending June 2022

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending June 2021

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending June 2020

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending June 2019

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending June 2018

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending June 2017

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending June 2016

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending June 2015

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending June 2014

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

Revenue

$301k (2025)

Expenses

$196k (2025)

Total Assets

$2.63M (2025)

Total Liabilities

$0 (2025)

Fiscal Year Ending June
2025

Fiscal Year Ending June
2024

Fiscal Year Ending June
2023

Fiscal Year Ending June
2022

Fiscal Year Ending June
2021

Fiscal Year Ending June
2020

Fiscal Year Ending June
2019

Fiscal Year Ending June
2018

Fiscal Year Ending June
2017

Fiscal Year Ending June
2016

Fiscal Year Ending June
2015

Fiscal Year Ending June
2014

Fiscal Year Ending June
2013

Fiscal Year Ending June
2012

Fiscal Year Ending June
2011

Fiscal Year Ending June
2010

Fiscal Year Ending June
2009

Fiscal Year Ending June
2008

Fiscal Year Ending June
2007

Fiscal Year Ending June
2006

Fiscal Year Ending June
2005

Fiscal Year Ending June
2004

Fiscal Year Ending June
2003

Fiscal Year Ending June
2002