Alexander W Casdin Foundation

Casdin Alexander W Ttee

New York, NY
Tax-exempt since Aug. 2002
EIN: 13-7270729

Receive an email when new data is available for this organization.

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

$6.31k (2024)

Expenses

$26.4k (2024)

Total Assets

$80 (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

Revenue

$6,314

Expenses

$26,370

Net Income

-$20,056

Net Assets

$80

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$6,295	99.7%
Interest Revenue	$19	0.3%
Dividends	$0
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$23,222	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	$80
Total Liabilities	$0
Net Assets	$80

Compensation

Key Employees and Officers	Compensation	Other
Alexander Casdin (Director)	$0	$0
Susan Block Casdin (Director)	$0	$0
Nicholas Eisenman (Director)	$0	$0

990-PF

Filed on May 6, 2025

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

View Filing

Schedules ▼

XML

Fiscal Year Ending Dec.
2023

Revenue

$181,911

Expenses

$165,130

Net Income

$16,781

Net Assets

$20,136

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$145,371	79.9%
Interest Revenue	$6	0.0%
Dividends	$0
Sales of Assets	$36,534	20.1%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$162,103	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	$20,136
Total Liabilities	$0
Net Assets	$20,136

Compensation

Key Employees and Officers	Compensation	Other
Alexander Casdin (Director)	$0	$0
Susan Block Casdin (Director)	$0	$0
Nicholas Eisenman (Director)	$0	$0

990-PF

Filed on May 10, 2024

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

View Filing

Schedules ▼

XML

Fiscal Year Ending Dec.
2022

Revenue

$10,212

Expenses

$11,050

Net Income

-$838

Net Assets

$3,355

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$7,515	73.6%
Interest Revenue	$1	0.0%
Dividends	$0
Sales of Assets	$2,696	26.4%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$11,050	100%
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	$3,355
Total Liabilities	$0
Net Assets	$3,355

Compensation

Key Employees and Officers	Compensation	Other
Alexander Casdin (Director)	$0	$0
Susan Block Casdin (Director)	$0	$0
Nicholas Eisenman (Director)	$0	$0

990-PF

Filed on May 10, 2023

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

View Filing

Schedules ▼

XML

Fiscal Year Ending Dec.
2021

Revenue

Expenses

$50

Net Income

-$50

Net Assets

$4,193

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

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$50	100%
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	$4,193
Total Liabilities	$0
Net Assets	$4,193

Compensation

Key Employees and Officers	Compensation	Other
Alexander Casdin (Director)	$0	$0
Susan Block Casdin (Director)	$0	$0
Nicholas Eisenman (Director)	$0	$0

990-PF

Filed on May 11, 2022

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

View Filing

Schedules ▼

XML

Fiscal Year Ending Dec.
2020

Revenue

$24,737

Expenses

$40,976

Net Income

-$16,239

Net Assets

$4,242

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$15,433	62.4%
Interest Revenue	$0
Dividends	$1	0.0%
Sales of Assets	$9,303	37.6%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$33,700	82.2%
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	$4,243
Total Liabilities	$1
Net Assets	$4,242

Compensation

Key Employees and Officers	Compensation	Other
Alexander Casdin (Director)	$0	$0
Susan Block Casdin (Director)	$0	$0
Nicholas Eisenman (Director)	$0	$0

990-PF

Filed on Nov. 15, 2021

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

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2019

Revenue

$89,198

Expenses

$86,972

Net Income

$2,226

Net Assets

$20,482

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$32,630	36.6%
Interest Revenue	$0
Dividends	$151	0.2%
Sales of Assets	$56,417	63.2%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$79,950	91.9%
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	$20,483
Total Liabilities	$1
Net Assets	$20,482

Compensation

Key Employees and Officers	Compensation	Other
Alexander Casdin (Director)	$0	$0
Susan Block Casdin (Director)	$0	$0
Nicholas Eisenman (Director)	$0	$0

990-PF

Filed on May 19, 2020

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

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2018

Revenue

$103,347

Expenses

$88,726

Net Income

$14,621

Net Assets

$18,257

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$104,227	> 100%
Interest Revenue	$0
Dividends	$153	0.1%
Sales of Assets	-$1,033
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$88,351	99.6%
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	$18,257
Total Liabilities	$0
Net Assets	$18,257

Compensation

Key Employees and Officers	Compensation	Other
Alexander Casdin (Director)	$0	$0
Susan Block Casdin (Director)	$0	$0
Nicholas Eisenman (Director)	$0	$0

990-PF

Filed on April 8, 2019

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

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2017

Revenue

$65,606

Expenses

$89,925

Net Income

-$24,319

Net Assets

$3,636

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$65,414	99.7%
Interest Revenue	$1	0.0%
Dividends	$0
Sales of Assets	$191	0.3%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$89,850	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	$3,636
Total Liabilities	$0
Net Assets	$3,636

Compensation

Key Employees and Officers	Compensation	Other
Alexander Casdin (Director)	$0	$0
Susan Block Casdin (Director)	$0	$0
Nicholas Eisenman (Director)	$0	$0

990-PF

Filed on May 15, 2018

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

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2016

Revenue

$95,664

Expenses

$72,082

Net Income

$23,582

Net Assets

$27,955

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$100,724	> 100%
Interest Revenue	$0
Dividends	$1	0.0%
Sales of Assets	-$5,061
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$71,725	99.5%
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	$27,955
Total Liabilities	$0
Net Assets	$27,955

Compensation

Key Employees and Officers	Compensation	Other
Alexander Casdin (Director)	$0	$0
Susan Block Casdin (Dir Ector)	$0	$0
Nicholas Eisenman (Director)	$0	$0

990-PF

Filed on June 28, 2017

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

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2015

Revenue

$88,572

Expenses

$109,260

Net Income

-$20,688

Net Assets

$4,373

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$89,280	> 100%
Interest Revenue	$0
Dividends	$2	0.0%
Sales of Assets	-$1,071
Other Income	$361	0.4%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$107,210	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	$4,373
Total Liabilities	$0
Net Assets	$4,373

Compensation

Key Employees and Officers	Compensation	Other
Alexander Casdin (Director)	$0	$0
Susan Block Casdin (Dir Ector)	$0	$0
Nicholas Eisenman (Director)	$0	$0

990-PF

Filed on May 6, 2016

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

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2014

Revenue

$72,465

Expenses

$55,500

Net Income

$16,965

Net Assets

$25,061

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$74,067	> 100%
Interest Revenue	$0
Dividends	$4	0.0%
Sales of Assets	-$1,606
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$54,475	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	$25,061
Total Liabilities	$0
Net Assets	$25,061

Compensation

Key Employees and Officers	Compensation	Other
Alexander Casdin (Director)	$0	$0
Susan Block Casdin (Director)	$0	$0
Nicholas Eisenman (Director)	$0	$0

990-PF

Filed on Oct. 14, 2015

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

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2013

Revenue

$39,941

Expenses

$52,135

Net Income

-$12,194

Net Assets

$8,096

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$39,959	> 100%
Interest Revenue	$0
Dividends	$32	0.1%
Sales of Assets	-$50
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$52,110	100.0%
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	$8,096
Total Liabilities	$0
Net Assets	$8,096

Compensation

Key Employees and Officers	Compensation	Other
Alexander Casdin (Director)	$0	$0
Susan Block Casdin (Director)	$0	$0
Nicholas Eisenman (Director)	$0	$0

990-PF

Filed on Nov. 17, 2014

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

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2012

Revenue

$42,159

Expenses

$57,435

Net Income

-$15,276

Net Assets

$20,289

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$44,483	> 100%
Interest Revenue	$0
Dividends	$4	0.0%
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$56,860	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	$20,290
Total Liabilities	$1
Net Assets	$20,289

990-PF

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

PDF

Fiscal Year Ending Dec.
2011

Revenue

$67,792

Expenses

$63,535

Net Income

$4,257

Net Assets

$39,469

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$65,741	97.0%
Interest Revenue	$0
Dividends	$5	0.0%
Sales of Assets	$2,046	3.0%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$63,535	100%
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	$39,470
Total Liabilities	$1
Net Assets	$39,469

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?

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 January 26, 2026

Alexander W Casdin Foundation

Organization summary

Type of Nonprofit

Summary charts: organization finances over time

Revenue $6.31k (2024)

Expenses $26.4k (2024)

Total Assets $80 (2024)

Total Liabilities $0 (2024)

Tax Filings by Year

Fiscal Year Ending Dec. 2024

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2023

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2022

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2021

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2020

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2019

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2018

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2017

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2016

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2015

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2014

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2013

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

Revenue

$6.31k (2024)

Expenses

$26.4k (2024)

Total Assets

$80 (2024)

Total Liabilities

$0 (2024)

Fiscal Year Ending Dec.
2024

Fiscal Year Ending Dec.
2023

Fiscal Year Ending Dec.
2022

Fiscal Year Ending Dec.
2021

Fiscal Year Ending Dec.
2020

Fiscal Year Ending Dec.
2019

Fiscal Year Ending Dec.
2018

Fiscal Year Ending Dec.
2017

Fiscal Year Ending Dec.
2016

Fiscal Year Ending Dec.
2015

Fiscal Year Ending Dec.
2014

Fiscal Year Ending Dec.
2013

Fiscal Year Ending Dec.
2012

Fiscal Year Ending Dec.
2011

Fiscal Year Ending Dec.
2010

Fiscal Year Ending Dec.
2009

Fiscal Year Ending Dec.
2008

Fiscal Year Ending Dec.
2007

Fiscal Year Ending Dec.
2006

Fiscal Year Ending Dec.
2005

Fiscal Year Ending Dec.
2004

Fiscal Year Ending Dec.
2003

Fiscal Year Ending Dec.
2002

Fiscal Year Ending Dec.
2001