The Leon And Helen Weiner Foundation

Wilmington, DE
Tax-exempt since Dec. 1999
EIN: 25-6666594

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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.

Category: Philanthropy, Voluntarism and Grantmaking Foundations / Private Grantmaking Foundations (NTEE)

Donations to this organization are tax deductible.

Revenue

$108k (2025)

Expenses

$158k (2025)

Total Assets

$1.81M (2025)

Total Liabilities

$0 (2025)

Source: Form 990 tax filings from 2011 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 Sept.
2025

Revenue

$108,193

Expenses

$158,066

Net Income

-$49,873

Net Assets

$1,805,839

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$63,769	58.9%
Sales of Assets	$44,424	41.1%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$123,000	77.8%
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	$1,805,839
Total Liabilities	$0
Net Assets	$1,805,839

Compensation

Key Employees and Officers	Compensation	Other
Jan Noel Hey (Trustee)	$0	$0
Jason Bartholomew Deleeuw (Trustee)	$0	$0
Hillary Lindsay Spruance (Trustee)	$0	$0
Peter Bradford Deleeuw (Trustee)	$0	$0

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990-PF

Filed on Nov. 14, 2025

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

View Filing

Schedules ▼

XML

Fiscal Year Ending Sept.
2024

Revenue

$77,417

Expenses

$143,190

Net Income

-$65,773

Net Assets

$1,855,712

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$66,004	85.3%
Sales of Assets	$11,413	14.7%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$111,000	77.5%
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	$1,855,712
Total Liabilities	$0
Net Assets	$1,855,712

Compensation

Key Employees and Officers	Compensation	Other
Jan Noel Hey (Trustee)	$0	$0
Jason Bartholomew Deleeuw (Trustee)	$0	$0
Hillary Lindsay Spruance (Trustee)	$0	$0
Peter Bradford Deleeuw (Trustee)	$0	$0

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990-PF

Filed on Feb. 5, 2025

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

View Filing

Schedules ▼

XML

Fiscal Year Ending Sept.
2023

Revenue

$328,629

Expenses

$148,019

Net Income

$180,610

Net Assets

$1,921,485

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$18	0.0%
Dividends	$56,154	17.1%
Sales of Assets	$272,457	82.9%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$121,000	81.7%
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	$1,921,485
Total Liabilities	$0
Net Assets	$1,921,485

Compensation

Key Employees and Officers	Compensation	Other
Jan Noel Hey (Trustee)	$0	$0
Jason Bartholomew Deleeuw (Trustee)	$0	$0
Hillary Lindsay Spruance (Trustee)	$0	$0
Peter Bradford Deleeuw (Trustee)	$0	$0

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990-PF

Filed on Feb. 5, 2024

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

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Sept.
2022

Revenue

$76,516

Expenses

$158,317

Net Income

-$81,801

Net Assets

$1,740,875

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$21	0.0%
Dividends	$54,461	71.2%
Sales of Assets	$22,034	28.8%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$129,000	81.5%
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	$1,740,875
Total Liabilities	$0
Net Assets	$1,740,875

Compensation

Key Employees and Officers	Compensation	Other
Jan Noel Hey (Trustee)	$0	$0
Jason Bartholomew Deleeuw (Trustee)	$0	$0
Hillary Lindsay Spruance (Trustee)	$0	$0
Peter Bradford Deleeuw (Trustee)	$0	$0

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990-PF

Filed on Jan. 23, 2023

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

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Sept.
2021

Revenue

$234,008

Expenses

$136,998

Net Income

$97,010

Net Assets

$1,822,676

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$27	0.0%
Dividends	$38,075	16.3%
Sales of Assets	$195,906	83.7%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$108,000	78.8%
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	$1,822,676
Total Liabilities	$0
Net Assets	$1,822,676

Compensation

Key Employees and Officers	Compensation	Other
Jan Noel Hey (Trustee)	$0	$0
Jason Bartholomew Deleeuw (Trustee)	$0	$0
Hillary Lindsay Spruance (Trustee)	$0	$0
Peter Bradford Deleeuw (Trustee)	$0	$0

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990-PF

Filed on Feb. 3, 2022

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

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Schedules ▼

PDF XML

Fiscal Year Ending Sept.
2020

Revenue

$56,817

Expenses

$130,793

Net Income

-$73,976

Net Assets

$1,725,665

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$33	0.1%
Dividends	$43,109	75.9%
Sales of Assets	$13,675	24.1%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$105,000	80.3%
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	$1,725,666
Total Liabilities	$1
Net Assets	$1,725,665

Compensation

Key Employees and Officers	Compensation	Other
Jan Noel Hey (Trustee)	$0	$0
Jason Bartholomew Deleeuw (Trustee)	$0	$0
Hillary Lindsay Spruance (Trustee)	$0	$0
Peter Bradford Deleeuw (Trustee)	$0	$0

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990-PF

Filed on Feb. 4, 2021

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

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Sept.
2019

Revenue

$73,088

Expenses

$136,068

Net Income

-$62,980

Net Assets

$1,799,641

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$40	0.1%
Dividends	$52,337	71.6%
Sales of Assets	$20,711	28.3%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$111,000	81.6%
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	$1,799,642
Total Liabilities	$1
Net Assets	$1,799,641

Compensation

Key Employees and Officers	Compensation	Other
Jan Noel Hey (Trustee)	$0	$0
Jason Bartholomew Deleeuw (Trustee)	$0	$0
Hillary Lindsay Spruance (Trustee)	$0	$0
Peter Bradford Deleeuw (Trustee)	$0	$0

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990-PF

Filed on Nov. 14, 2019

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

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Sept.
2018

Revenue

$71,392

Expenses

$107,980

Net Income

-$36,588

Net Assets

$1,862,622

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$16	0.0%
Dividends	$31,126	43.6%
Sales of Assets	$33,064	46.3%
Other Income	$7,186	10.1%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$100,500	93.1%
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	$1,862,622
Total Liabilities	$0
Net Assets	$1,862,622

Compensation

Key Employees and Officers	Compensation	Other
Jan Noel Hey (Trustee)	$0	$0
Jason Bartholomew Deleeuw (Trustee)	$0	$0
Hillary Lindsay Spruance (Trustee)	$0	$0
Peter Bradford Deleeuw (Trustee)	$0	$0

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990-PF

Filed on Jan. 9, 2019

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

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Sept.
2017

Revenue

$20,514

Expenses

$87,660

Net Income

-$67,146

Net Assets

$1,899,210

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$19	0.1%
Dividends	$33,379	> 100%
Sales of Assets	-$12,884
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$81,000	92.4%
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	$1,899,210
Total Liabilities	$0
Net Assets	$1,899,210

Compensation

Key Employees and Officers	Compensation	Other
Jan Noel Hey (Trustee)	$0	$0
Jason Bartholomew Deleeuw (Trustee)	$0	$0
Hillary Lindsay Spruance (Trustee)	$0	$0
Peter Bradford Deleeuw (Trustee)	$0	$0

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990-PF

Filed on Feb. 13, 2018

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

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Sept.
2016

Revenue

$118,710

Expenses

$94,790

Net Income

$23,920

Net Assets

$1,836,712

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$1,258	1.1%
Dividends	$40,544	34.2%
Sales of Assets	$76,908	64.8%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$80,733	85.2%
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	$1,836,712
Total Liabilities	$0
Net Assets	$1,836,712

Compensation

Key Employees and Officers	Compensation	Other
Jan Noel Hey (Trustee)	$0	$0
Jason Bartholomew Deleeuw (Trustee)	$0	$0
Hillary Lindsay Spruance (Trustee)	$0	$0
Peter Bradford Deleeuw (Trustee)	$0	$0

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990-PF

Filed on May 26, 2017

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

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Schedules ▼

PDF XML

Fiscal Year Ending Sept.
2015

Revenue

$1,874,357

Expenses

$14,982

Net Income

$1,859,375

Net Assets

$1,877,665

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$1,828,189	97.5%
Interest Revenue	$2,192	0.1%
Dividends	$17,053	0.9%
Sales of Assets	$26,923	1.4%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$6,501	43.4%
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	$1,877,665
Total Liabilities	$0
Net Assets	$1,877,665

Compensation

Key Employees and Officers	Compensation	Other
Jan Noel Hey (Trustee)	$0	$0
Jason Bartholomew Deleeuw (Trustee)	$0	$0
Hillary Lindsay Spruance (Trustee)	$0	$0
Peter Bradford Deleeuw (Trustee)	$0	$0

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990-PF

Filed on March 26, 2016

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

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Schedules ▼

PDF XML

Fiscal Year Ending Sept.
2014

Revenue

$2,075

Expenses

$2,536

Net Income

-$461

Net Assets

$34,613

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$300	14.5%
Interest Revenue	$0
Dividends	$1,023	49.3%
Sales of Assets	$752	36.2%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$2,124	83.8%
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	$34,613
Total Liabilities	$0
Net Assets	$34,613

990-PF

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

PDF

Fiscal Year Ending Sept.
2013

Revenue

$1,845

Expenses

$2,421

Net Income

-$576

Net Assets

$35,075

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$1,047	56.7%
Sales of Assets	$798	43.3%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$2,000	82.6%
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	$35,075
Total Liabilities	$0
Net Assets	$35,075

990-PF

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

PDF

Fiscal Year Ending Sept.
2012

Revenue

$775

Expenses

$2,330

Net Income

-$1,555

Net Assets

$35,650

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$996	> 100%
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$2,000	85.8%
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	$35,650
Total Liabilities	$0
Net Assets	$35,650

990-PF

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

PDF

Fiscal Year Ending Sept.
2011

Revenue

$465

Expenses

$1,311

Net Income

-$846

Net Assets

$37,206

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$866	> 100%
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$1,000	76.3%
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	$37,206
Total Liabilities	$0
Net Assets	$37,206

990-PF

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

PDF

PDF (2 of 2)

Fiscal Year Ending Sept.
2001

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

990-PF

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

PDF

About This Data

What Is This Data?

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.

In addition to the raw summary data, we link to PDFs and digital copies of full Form 990 documents wherever possible. This consists of separate releases by the IRS of Form 990 documents processed by the agency, which we update regularly.

We also link to copies of audits nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year since 2016. These audits are copied from the Federal Audit Clearinghouse.

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Every organization that has been recognized as tax exempt by the IRS has to file Form 990 every year, unless they make less than $200,000 in revenue and have less than $500,000 in assets, in which case they have to file form 990-EZ. Organizations making less than $50,000 don’t have to file either form but do have to let the IRS they’re still in business via a Form 990N "e-Postcard."

Nonprofit Explorer has organizations claiming tax exemption in each of the 27 subsections of the 501(c) section of the tax code, and which have filed a Form 990, Form 990EZ or Form 990PF. Taxable trusts and private foundations that are required to file a form 990PF are also included. Small organizations filing a Form 990N "e-Postcard" are not included in this data.

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Updated March 23, 2026

The Leon And Helen Weiner Foundation

Organization summary

Type of Nonprofit

Summary charts: organization finances over time

Revenue $108k (2025)

Expenses $158k (2025)

Total Assets $1.81M (2025)

Total Liabilities $0 (2025)

Tax Filings by Year

Fiscal Year Ending Sept. 2025

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Sept. 2024

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Sept. 2023

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Sept. 2022

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Sept. 2021

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Sept. 2020

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Sept. 2019

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Sept. 2018

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Sept. 2017

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Sept. 2016

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Sept. 2015

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Sept. 2014

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Document Links

990-PF

Revenue

$108k (2025)

Expenses

$158k (2025)

Total Assets

$1.81M (2025)

Total Liabilities

$0 (2025)

Fiscal Year Ending Sept.
2025

Fiscal Year Ending Sept.
2024

Fiscal Year Ending Sept.
2023

Fiscal Year Ending Sept.
2022

Fiscal Year Ending Sept.
2021

Fiscal Year Ending Sept.
2020

Fiscal Year Ending Sept.
2019

Fiscal Year Ending Sept.
2018

Fiscal Year Ending Sept.
2017

Fiscal Year Ending Sept.
2016

Fiscal Year Ending Sept.
2015

Fiscal Year Ending Sept.
2014

Fiscal Year Ending Sept.
2013

Fiscal Year Ending Sept.
2012

Fiscal Year Ending Sept.
2011

Fiscal Year Ending Sept.
2010

Fiscal Year Ending Sept.
2009

Fiscal Year Ending Sept.
2008

Fiscal Year Ending Sept.
2007

Fiscal Year Ending Sept.
2006

Fiscal Year Ending Sept.
2005

Fiscal Year Ending Sept.
2004

Fiscal Year Ending Sept.
2003

Fiscal Year Ending Sept.
2002

Fiscal Year Ending Sept.
2001