PROPUBLICA Fearless Reporting for an Informed Society — Join Us.
DONATE
Skip to content
ProPublica Donate
ProPublica Donate

Siegel Family Endowment Inc

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.

Summary charts: organization finances over time

Revenue
$82.7M (2023)

Expenses
$33.9M (2023)

Total Assets
$500M (2023)

Total Liabilities
$23.6k (2023)

Years with missing data
Source: Form 990 tax filings from 2011 to 2023

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.
2023

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$82,678,444
Expenses
$33,921,274
Net Income
$48,757,170
Net Assets
$500,174,344
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $564,765
0.7%
Dividends $82,113,442
99.3%
Sales of Assets $0
Other Income $237
0.0%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $32,166,929
94.8%
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 $500,197,981
Total Liabilities $23,637
Net Assets $500,174,344
Compensation
Key Employees and Officers Compensation Other
Anzu Enterprises Llc (0) $550,500 $22,217
John Stevens Irons Jr (Svp/Head Of Research) $359,360 $38,139
Melba J Song (Vp & Coo) $296,000 $16,705
Joshua L Elder (Dir./Head Of Grants) $269,500 $16,284
Laura Maher (Mgr/Head Of Ext.Eng.) $176,000 $27,283
Alexandra M Chin (Manager Grantmaking) $126,500 $24,744
David M Siegel (Director, Chairman) $0 $0
Sheri Vammen (Vice Chair, Secretary) $0 $0
Richard A Sauer (Treasurer) $0 $0
Kathleen Knight (E.D./President) $0 $0

Document Links

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$55,005,359
Expenses
$30,513,404
Net Income
$24,491,955
Net Assets
$459,711,048
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $2,197,455
4.0%
Interest Revenue $190
0.0%
Dividends $51,167,428
93.0%
Sales of Assets $1,455,232
2.6%
Other Income $185,054
0.3%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $29,373,186
96.3%
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 $459,837,619
Total Liabilities $126,571
Net Assets $459,711,048
Compensation
Key Employees and Officers Compensation Other
Two Sigma Investments Lp (0) $937,034 $25,531
John Steven Irons Jr (Snr Vp & Head Of Res) $357,693 $40,051
Melba J Song (Vp. & Coo.) $292,636 $17,175
Joshua L Elder (Dir./Head Of Grants) $239,989 $17,024
Laura Maher (Mgr./Head Of Ext Eng) $178,370 $25,532
Jessica C Johansen (Dir. Of Special Proj) $134,489 $13,015
David M Siegel (Director, Chairman) $0 $0
Sheri Vammen (Vice Chair, Secretary) $0 $0
Richard A Sauer (Treasurer) $0 $0
Kathleen Knight (E.D./President) $0 $0

Document Links

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$36,090,770
Expenses
$28,280,467
Net Income
$7,810,303
Net Assets
$415,523,120
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $3,358,785
9.3%
Interest Revenue $55
0.0%
Dividends $31,757,897
88.0%
Sales of Assets $726
0.0%
Other Income $973,307
2.7%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $27,784,143
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 $415,537,771
Total Liabilities $14,651
Net Assets $415,523,120
Compensation
Key Employees and Officers Compensation Other
Two Sigma Investments Lp (0) $504,147 $19,557
David M Siegel (Director, Chairman) $0 $0
Sheri Vammen (Vice Chair, Secretary) $0 $0
Richard A Sauer (Treasurer) $0 $0
Kathleen Knight (E.D./President) $0 $0

Document Links

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$15,153,824
Expenses
$25,530,157
Net Income
-$10,376,333
Net Assets
$382,730,195
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $772,087
5.1%
Dividends $14,381,737
94.9%
Sales of Assets $0
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $25,507,316
99.9%
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 $382,748,141
Total Liabilities $17,946
Net Assets $382,730,195
Compensation
Key Employees and Officers Compensation Other
Two Sigma Investments Lp (0) $348,860 $17,032
David M Siegel (Director, Chairman) $0 $0
Sheri Vammen (Vice Chair, Secretary) $0 $0
Richard A Sauer (Treasurer) $0 $0
Kathleen Knight (E.D./President) $0 $0

Document Links

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$37,496,045
Expenses
$22,286,124
Net Income
$15,209,921
Net Assets
$368,987,057
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $1,681,660
4.5%
Dividends $33,676,665
89.8%
Sales of Assets $2,137,720
5.7%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $21,133,684
94.8%
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 $369,053,164
Total Liabilities $66,107
Net Assets $368,987,057

Document Links

Fiscal Year Ending Dec.
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

Fiscal Year Ending Dec.
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

Fiscal Year Ending Dec.
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

Fiscal Year Ending Dec.
2015

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$25,837,209
Expenses
$5,042,270
Net Income
$20,794,939
Net Assets
$164,334,456
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $122
0.0%
Dividends $25,837,087
100.0%
Sales of Assets $0
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $5,007,575
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 $164,334,678
Total Liabilities $222
Net Assets $164,334,456

Document Links

Fiscal Year Ending Dec.
2014

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$23,288,752
Expenses
$2,849,709
Net Income
$20,439,043
Net Assets
$119,202,039
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $23,288,752
100%
Sales of Assets $0
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $2,150,855
75.5%
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 $119,202,039
Total Liabilities $0
Net Assets $119,202,039

Document Links

Fiscal Year Ending Dec.
2013

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$8,132,778
Expenses
$1,656,050
Net Income
$6,476,728
Net Assets
$81,297,014
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $8,132,778
100%
Sales of Assets $0
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $1,118,823
67.6%
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 $81,297,014
Total Liabilities $0
Net Assets $81,297,014

Document Links

Fiscal Year Ending Dec.
2012

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$45,543,657
Expenses
$154,337
Net Income
$45,389,320
Net Assets
$50,389,320
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $43,000,000
94.4%
Interest Revenue $0
Dividends $0
Sales of Assets $0
Other Income $2,543,657
5.6%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $99,976
64.8%
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 $50,389,320
Total Liabilities $0
Net Assets $50,389,320

Document Links

Fiscal Year Ending Dec.
2011

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$5,000,000
Expenses
$0
Net Income
$5,000,000
Net Assets
$5,000,000
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $5,000,000
100%
Interest Revenue $0
Dividends $0
Sales of Assets $0
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $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 $5,000,000
Total Liabilities $0
Net Assets $5,000,000

Document Links

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

About 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 »