Skip to content
ProPublica Donate
ProPublica Donate

Wolf Family Foundation

  • Boulder, CO
  • Tax-exempt since Jan. 2013
  • EIN: 90-0624210

Organization summary

Type of Nonprofit

Designated as a 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 Independent Foundations (NTEE)

Donations to this organization are tax deductible.

Summary charts: organization finances over time

Revenue
−$1.21k (2024)

Expenses
$35.7k (2024)

Total Assets
$65.7k (2024)

Total Liabilities
$0 (2024)

Source: Form 990 tax filings from 2011 to 2024

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 Dec.
2024

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
-$1,212
Expenses
$35,707
Net Income
-$36,919
Net Assets
$65,681
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $586
Dividends $2,655
Sales of Assets -$4,453
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $35,431
99.2%
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 $65,681
Total Liabilities $0
Net Assets $65,681
Compensation
Key Employees and Officers Compensation Other
Daniel Charles Van De Wint Wolf (Dir) $0 $0
Timothy Van De Wint Wolf (Dir, Pres) $0 $0
Mary Merritt Wolf (Dir) $0 $0
Stephen Benjamin Wolf (Dir) $0 $0
+ View more people

Document Links

990-PF
Filed on July 24, 2025

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

View Filing
XML

Fiscal Year Ending Dec.
2023

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$38,215
Expenses
$78,561
Net Income
-$40,346
Net Assets
$102,600
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $50,000
> 100%
Interest Revenue $528
1.4%
Dividends $2,221
5.8%
Sales of Assets -$14,534
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $77,827
99.1%
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 $102,600
Total Liabilities $0
Net Assets $102,600
Compensation
Key Employees and Officers Compensation Other
Daniel Charles Van De Wint Wolf (Dir) $0 $0
Timothy Van De Wint Wolf (Dir, Pres) $0 $0
Mary Merritt Wolf (Dir) $0 $0
Stephen Benjamin Wolf (Dir) $0 $0
+ View more people

Document Links

990-PF
Filed on Oct. 24, 2024

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

View Filing
XML

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$1,029
Expenses
$71,482
Net Income
-$70,453
Net Assets
$142,946
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $31
3.0%
Dividends $4,075
> 100%
Sales of Assets -$3,077
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $70,335
98.4%
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 $142,946
Total Liabilities $0
Net Assets $142,946
Compensation
Key Employees and Officers Compensation Other
Daniel Charles Van De Wint Wolf (Dir) $0 $0
Timothy Van De Wint Wolf (Dir, Pres) $0 $0
Mary Merritt Wolf (Dir) $0 $0
Stephen Benjamin Wolf (Dir) $0 $0
+ View more people

Document Links

990-PF
Filed on July 6, 2023

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$11,783
Expenses
$154,994
Net Income
-$143,211
Net Assets
$213,399
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $32
0.3%
Dividends $4,449
37.8%
Sales of Assets $7,302
62.0%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $153,110
98.8%
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 $213,399
Total Liabilities $0
Net Assets $213,399
Compensation
Key Employees and Officers Compensation Other
Daniel Charles Van De Wint Wolf (Dir) $0 $0
Timothy Van De Wint Wolf (Dir, Pres) $0 $0
Mary Merritt Wolf (Dir) $0 $0
Stephen Benjamin Wolf (Dir) $0 $0
+ View more people

Document Links

990-PF
Filed on Oct. 20, 2022

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

View Filing
XML

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$89,637
Expenses
$143,497
Net Income
-$53,860
Net Assets
$356,609
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $100,000
> 100%
Interest Revenue $62
0.1%
Dividends $6,404
7.1%
Sales of Assets $0
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $140,893
98.2%
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 $356,610
Total Liabilities $1
Net Assets $356,609
Compensation
Key Employees and Officers Compensation Other
Daniel Charles Van De Wint Wolf (Dir) $0 $0
Timothy Van De Wint Wolf (Dir, Pres) $0 $0
Mary Merritt Wolf (Dir) $0 $0
Stephen Benjamin Wolf (Dir) $0 $0
+ View more people

Document Links

990-PF
Filed on Oct. 14, 2021

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$23,723
Expenses
$128,395
Net Income
-$104,672
Net Assets
$410,469
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $115
0.5%
Dividends $9,500
40.0%
Sales of Assets $14,108
59.5%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $125,412
97.7%
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 $410,470
Total Liabilities $1
Net Assets $410,469
Compensation
Key Employees and Officers Compensation Other
Daniel Charles Van De Wint Wolf (Dir) $0 $0
Timothy Van De Wint Wolf (Dir, Pres) $0 $0
Mary Merritt Wolf (Dir) $0 $0
Stephen Benjamin Wolf (Dir) $0 $0
+ View more people

Document Links

990-PF
Filed on April 17, 2020

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2018

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$28,863
Expenses
$98,209
Net Income
-$69,346
Net Assets
$515,142
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $205
0.7%
Dividends $13,096
45.4%
Sales of Assets $15,562
53.9%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $94,329
96.0%
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 $515,142
Total Liabilities $0
Net Assets $515,142
Compensation
Key Employees and Officers Compensation Other
Daniel Charles Van De Wint Wolf (Dir) $0 $0
Timothy Van De Wint Wolf (Pres / Dir) $0 $0
Mary Merritt Wolf (Dir) $0 $0
Stephen Benjamin Wolf (Dir) $0 $0
+ View more people

Document Links

990-PF
Filed on March 14, 2019

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2017

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$38,302
Expenses
$82,064
Net Income
-$43,762
Net Assets
$584,488
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $59
0.2%
Dividends $10,803
28.2%
Sales of Assets $27,440
71.6%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $78,372
95.5%
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 $584,488
Total Liabilities $0
Net Assets $584,488
Compensation
Key Employees and Officers Compensation Other
Daniel Charles Van De Wint Wolf (Dir) $0 $0
Timothy Van De Wint Wolf (Pres / Dir) $0 $0
Mary Merritt Wolf (Dir) $0 $0
Stephen Benjamin Wolf (Dir) $0 $0
+ View more people

Document Links

990-PF
Filed on April 10, 2018

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2016

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$136,808
Expenses
$204,824
Net Income
-$68,016
Net Assets
$628,250
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $117,625
86.0%
Interest Revenue $77
0.1%
Dividends $10,732
7.8%
Sales of Assets $8,374
6.1%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $200,902
98.1%
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 $628,250
Total Liabilities $0
Net Assets $628,250
Compensation
Key Employees and Officers Compensation Other
Daniel Charles Van De Wint Wolf (Dir) $0 $0
Timothy Van De Wint Wolf (Pres / Dir) $0 $0
Mary Merritt Wolf (Dir) $0 $0
Stephen Benjamin Wolf (Dir) $0 $0
+ View more people

Document Links

990-PF
Filed on April 14, 2017

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2015

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$62,558
Expenses
$86,566
Net Income
-$24,008
Net Assets
$696,266
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $77
0.1%
Dividends $12,280
19.6%
Sales of Assets $50,099
80.1%
Other Income $102
0.2%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $81,332
94.0%
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 $696,266
Total Liabilities $0
Net Assets $696,266
Compensation
Key Employees and Officers Compensation Other
Daniel Charles Van De Wint Wolf (Dir) $0 $0
Timothy Van De Wint Wolf (Pres / Dir) $0 $0
Mary Merritt Wolf (Dir) $0 $0
Stephen Benjamin Wolf (Dir) $0 $0
+ View more people

Document Links

990-PF
Filed on June 30, 2016

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2014

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$67,107
Expenses
$123,328
Net Income
-$56,221
Net Assets
$720,274
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $51
0.1%
Dividends $32,428
48.3%
Sales of Assets $34,628
51.6%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $118,234
95.9%
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 $720,274
Total Liabilities $0
Net Assets $720,274
Compensation
Key Employees and Officers Compensation Other
Daniel Charles Van De Wint Wolf (Dir) $0 $0
Timothy Van De Wint Wolf (Pres / Dir) $0 $0
Mary Merritt Wolf (Dir) $0 $0
Stephen Benjamin Wolf (Dir) $0 $0
+ View more people

Document Links

990-PF
Filed on April 17, 2015

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2013

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$46,398
Expenses
$119,308
Net Income
-$72,910
Net Assets
$776,495
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $867
1.9%
Interest Revenue $12
0.0%
Dividends $21,710
46.8%
Sales of Assets $23,809
51.3%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $113,291
95.0%
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 $776,495
Total Liabilities $0
Net Assets $776,495

Document Links

990-PF

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

PDF

Fiscal Year Ending Dec.
2012

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$38,242
Expenses
$118,948
Net Income
-$80,706
Net Assets
$849,405
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $56
0.1%
Dividends $32,567
85.2%
Sales of Assets $5,619
14.7%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $113,753
95.6%
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 $849,405
Total Liabilities $0
Net Assets $849,405

Document Links

990-PF

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

PDF

Fiscal Year Ending Dec.
2011

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$50,193
Expenses
$120,462
Net Income
-$70,269
Net Assets
$930,111
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $223
0.4%
Dividends $28,845
57.5%
Sales of Assets $21,125
42.1%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $114,731
95.2%
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 $930,111
Total Liabilities $0
Net Assets $930,111

Document Links

990-PF

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

PDF

Fiscal Year Ending Dec.
2010

No Extracted Financial Data

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

Document Links

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.

Which Organizations Are Here?

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.

Types of Nonprofits

There are 27 nonprofit designations based on the numbered subsections of section 501(c) of the tax code. See the list »

Get the Data

For those interested in acquiring the original data from the source, here’s where our data comes from:

  • Raw filing data. Includes EINs and summary financials as structured data.
  • Exempt Organization profiles. Includes organization names, addresses, etc. You can merge this with the raw filing data using EIN numbers.
  • Form 990 documents. Prior to 2017, these documents were obtained and processed by Public.Resource.org and ProPublica. Bulk PDF downloads since 2017 are available from the IRS.
  • Form 990 documents as XML files. Includes complete filing data (financial details, names of officers, tax schedules, etc.) in machine-readable format. Only available for electronically filed documents. Electronic data released prior to October 2021 is also available through Amazon Web Services.
  • Audits. PDFs of single or program-specific audits for nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year. Available for fiscal year 2015 and later.

API

The data powering this website is available programmatically, via an API. Read the API documentation »

See an issue with the data?

Contact Us

About Nonprofit Explorer

Nonprofit Explorer

Browse millions of annual returns filed by tax-exempt organizations with ProPublica’s Nonprofit Explorer. See details like executive compensation, revenue, expenses and more. Search for an organization or a person, or search the full text of filings.

By Andrea Suozzo, Alec Glassford, Ash Ngu and Brandon Roberts.

Design by Jeff Frankl. Additional development by Ken Schwencke, Mike Tigas, and Sisi Wei.

E-file viewer adapted from IRS e-File Viewer by Ben Getson. Code for scraping audit documents adapated from Govwiki.

Updated