Cobb Foundation

  • Arcadia, CA
  • Tax-exempt since Dec. 2004
  • EIN: 54-2161288

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 Grantmaking Foundations (NTEE)

Donations to this organization are tax deductible.

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

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$358,853
Expenses
$120,605
Net Income
$238,248
Net Assets
$55,871
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $220,903
61.6%
Interest Revenue $0
Dividends $2,570
0.7%
Sales of Assets $135,380
37.7%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $119,494
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 $55,871
Total Liabilities $0
Net Assets $55,871
Compensation
Key Employees and Officers Compensation Other
Mark Silk (Director/Ceo) $0 $0
Sarah Silk (Director/Secretary) $0 $0

Document Links

990-PF
Filed on Nov. 24, 2025

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

View Filing
XML

Fiscal Year Ending Sept.
2024

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$89,360
Expenses
$94,045
Net Income
-$4,685
Net Assets
$19,693
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $1,626
1.8%
Sales of Assets $87,734
98.2%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $93,241
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 $19,693
Total Liabilities $0
Net Assets $19,693
Compensation
Key Employees and Officers Compensation Other
Mark Silk (Director/Ceo) $0 $0
Sarah Silk (Director/Secretary) $0 $0

Document Links

990-PF
Filed on Nov. 13, 2024

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

View Filing
PDF XML

Fiscal Year Ending Sept.
2023

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$37,490
Expenses
$100,245
Net Income
-$62,755
Net Assets
$24,860
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $2,100
5.6%
Interest Revenue $0
Dividends $1,735
4.6%
Sales of Assets $33,655
89.8%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $99,511
99.3%
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 $24,860
Total Liabilities $0
Net Assets $24,860
Compensation
Key Employees and Officers Compensation Other
Mark Silk (Director/Ceo) $0 $0
Sarah Silk (Director/Secretary) $0 $0

Document Links

990-PF
Filed on Nov. 29, 2023

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

View Filing
PDF XML

Fiscal Year Ending Sept.
2022

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$129,985
Expenses
$93,520
Net Income
$36,465
Net Assets
$89,390
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $1,600
1.2%
Interest Revenue $0
Dividends $1,796
1.4%
Sales of Assets $126,589
97.4%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $92,820
99.3%
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 $89,390
Total Liabilities $0
Net Assets $89,390
Compensation
Key Employees and Officers Compensation Other
Mark Silk (Director/Ceo) $0 $0
Sarah Silk (Director/ Secretary) $0 $0

Document Links

990-PF
Filed on Oct. 26, 2022

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

View Filing
PDF XML

Fiscal Year Ending Sept.
2021

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$71,120
Expenses
$73,935
Net Income
-$2,815
Net Assets
$53,906
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $1,892
2.7%
Sales of Assets $69,228
97.3%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $73,255
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 $53,907
Total Liabilities $1
Net Assets $53,906
Compensation
Key Employees and Officers Compensation Other
Mark Silk (Director/Ceo) $0 $0
Sarah Silk (Director/ Secretary) $0 $0

Document Links

990-PF
Filed on Nov. 1, 2021

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

View Filing
XML

Fiscal Year Ending Sept.
2020

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$38,792
Expenses
$69,515
Net Income
-$30,723
Net Assets
$57,485
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $2,546
6.6%
Sales of Assets $36,246
93.4%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $68,824
99.0%
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 $57,486
Total Liabilities $1
Net Assets $57,485
Compensation
Key Employees and Officers Compensation Other
Mark Silk (Director/Ceo) $0 $0
Sarah Silk (Director/ Secretary) $0 $0

Document Links

990-PF
Filed on Oct. 26, 2020

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

View Filing
XML

Fiscal Year Ending Sept.
2019

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

Fiscal Year Ending Sept.
2018

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

Fiscal Year Ending Sept.
2017

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

Fiscal Year Ending Sept.
2016

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

Fiscal Year Ending Sept.
2015

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$38,125
Expenses
$166,705
Net Income
-$128,580
Net Assets
$427,248
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $44
0.1%
Dividends $20,685
54.3%
Sales of Assets $17,396
45.6%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $165,386
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 $427,248
Total Liabilities $0
Net Assets $427,248

Document Links

990-PF

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

PDF

Fiscal Year Ending Sept.
2014

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$147,039
Expenses
$450,225
Net Income
-$303,186
Net Assets
$556,919
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $92,208
62.7%
Interest Revenue $32
0.0%
Dividends $28,666
19.5%
Sales of Assets $26,133
17.8%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $449,097
99.7%
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 $556,919
Total Liabilities $0
Net Assets $556,919

Document Links

990-PF

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

PDF

Fiscal Year Ending Sept.
2013

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$442,375
Expenses
$144,510
Net Income
$297,865
Net Assets
$925,611
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $397,787
89.9%
Interest Revenue $41
0.0%
Dividends $27,252
6.2%
Sales of Assets $17,295
3.9%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $143,610
99.4%
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 $925,611
Total Liabilities $0
Net Assets $925,611

Document Links

990-PF

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

PDF

Fiscal Year Ending Sept.
2012

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$21,042
Expenses
$586,775
Net Income
-$565,733
Net Assets
$789,034
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $16
0.1%
Dividends $18,503
87.9%
Sales of Assets $2,523
12.0%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $585,637
99.8%
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 $789,034
Total Liabilities $0
Net Assets $789,034

Document Links

990-PF

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

PDF

Fiscal Year Ending Sept.
2011

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

Fiscal Year Ending Sept.
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

Fiscal Year Ending Sept.
2009

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

Fiscal Year Ending Sept.
2008

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

Fiscal Year Ending Sept.
2007

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

Fiscal Year Ending Sept.
2006

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

Fiscal Year Ending Sept.
2005

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 »

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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.
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  • 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.

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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.

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