Trust U/A 8/23/78 M/B Thomas W Armitage For The Hotchkiss School

Chicago, IL
Tax-exempt since Jan. 1979
EIN: 06-6221530

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.

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 Aug.
2025

Revenue

$11,535

Expenses

$17,671

Net Income

-$6,136

Net Assets

$180,744

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$8,966	77.7%
Sales of Assets	$2,569	22.3%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$13,580	76.8%
Compensation of Officers*	$5,750	32.5%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$180,744
Total Liabilities	$0
Net Assets	$180,744

Compensation

Key Employees and Officers	Compensation	Other
Jp Morgan Chase Bank Na (Trustee)	$5,750	$0

990-PF

Filed on Dec. 8, 2025

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

View Filing

Schedules ▼

XML

Fiscal Year Ending Aug.
2024

Revenue

$11,110

Expenses

$20,533

Net Income

-$9,423

Net Assets

$186,879

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$7,384	66.5%
Sales of Assets	$3,726	33.5%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$16,469	80.2%
Compensation of Officers*	$5,320	25.9%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$186,879
Total Liabilities	$0
Net Assets	$186,879

Compensation

Key Employees and Officers	Compensation	Other
Jp Morgan Chase Bank Na (Trustee)	$5,320	$0

990-PF

Filed on Dec. 9, 2024

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

View Filing

Schedules ▼

XML

Fiscal Year Ending Aug.
2023

Revenue

$14,226

Expenses

$18,055

Net Income

-$3,829

Net Assets

$196,631

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$7,310	51.4%
Sales of Assets	$6,869	48.3%
Other Income	$47	0.3%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$14,459	80.1%
Compensation of Officers*	$4,899	27.1%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$196,631
Total Liabilities	$0
Net Assets	$196,631

Compensation

Key Employees and Officers	Compensation	Other
Jp Morgan Chase Bank Na (Trustee)	$4,899	$0

990-PF

Filed on Jan. 16, 2024

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

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Aug.
2022

Revenue

$11,312

Expenses

$18,492

Net Income

-$7,180

Net Assets

$200,458

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$8,957	79.2%
Sales of Assets	$2,355	20.8%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$14,276	77.2%
Compensation of Officers*	$5,517	29.8%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$200,458
Total Liabilities	$0
Net Assets	$200,458

Compensation

Key Employees and Officers	Compensation	Other
Jp Morgan Chase Bank Na (Trustee)	$5,517	$0

990-PF

Filed on Jan. 12, 2023

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

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Aug.
2021

Revenue

$21,858

Expenses

$16,918

Net Income

$4,940

Net Assets

$207,643

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$5,617	25.7%
Sales of Assets	$16,241	74.3%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$12,605	74.5%
Compensation of Officers*	$5,377	31.8%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$207,643
Total Liabilities	$0
Net Assets	$207,643

Compensation

Key Employees and Officers	Compensation	Other
Jp Morgan Chase Bank N A (Trustee)	$5,377	$0

990-PF

Filed on Jan. 10, 2022

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

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Aug.
2020

Revenue

$18,223

Expenses

$15,538

Net Income

$2,685

Net Assets

$202,699

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$6,051	33.2%
Sales of Assets	$12,172	66.8%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$12,060	77.6%
Compensation of Officers*	$4,756	30.6%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$202,700
Total Liabilities	$1
Net Assets	$202,699

Compensation

Key Employees and Officers	Compensation	Other
Jp Morgan Chase Bank N A (Trustee)	$4,756	$0

990-PF

Filed on Dec. 3, 2020

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

View Filing

Schedules ▼

XML

Fiscal Year Ending Aug.
2019

Revenue

$17,673

Expenses

$16,648

Net Income

$1,025

Net Assets

$200,019

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$6,242	35.3%
Sales of Assets	$11,431	64.7%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$13,378	80.4%
Compensation of Officers*	$4,708	28.3%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$200,019
Total Liabilities	$0
Net Assets	$200,019

990-PF

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

PDF

Fiscal Year Ending Aug.
2018

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

Fiscal Year Ending Aug.
2017

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

Fiscal Year Ending Aug.
2016

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

PDF (2 of 2)

Fiscal Year Ending Aug.
2015

Revenue

$15,152

Expenses

$16,344

Net Income

-$1,192

Net Assets

$211,772

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$6,253	41.3%
Sales of Assets	$8,899	58.7%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$13,095	80.1%
Compensation of Officers*	$3,640	22.3%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$211,772
Total Liabilities	$0
Net Assets	$211,772

The IRS has provided extracted financial data for this filing, but has not yet released the source documents.

Fiscal Year Ending Aug.
2014

Revenue

$15,101

Expenses

$15,107

Net Income

-$6

Net Assets

$211,969

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$3,946	26.1%
Sales of Assets	$11,155	73.9%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$12,085	80.0%
Compensation of Officers*	$3,543	23.5%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$211,969
Total Liabilities	$0
Net Assets	$211,969

990-PF

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

PDF

Fiscal Year Ending Aug.
2013

Revenue

$14,383

Expenses

$14,111

Net Income

$272

Net Assets

$212,867

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$4,095	28.5%
Sales of Assets	$10,248	71.3%
Other Income	$40	0.3%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$11,413	80.9%
Compensation of Officers*	$3,353	23.8%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$212,867
Total Liabilities	$0
Net Assets	$212,867

990-PF

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

PDF

Fiscal Year Ending Aug.
2012

Revenue

$2,520

Expenses

$13,666

Net Income

-$11,146

Net Assets

$212,594

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$4,333	> 100%
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$11,103	81.2%
Compensation of Officers*	$3,065	22.4%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$212,594
Total Liabilities	$0
Net Assets	$212,594

990-PF

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

PDF

Fiscal Year Ending Aug.
2011

Revenue

$21,792

Expenses

$13,543

Net Income

$8,249

Net Assets

$223,739

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$8	0.0%
Dividends	$5,015	23.0%
Sales of Assets	$16,769	77.0%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$11,218	82.8%
Compensation of Officers*	$2,922	21.6%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$223,740
Total Liabilities	$1
Net Assets	$223,739

990-PF

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

PDF

Fiscal Year Ending Aug.
2010

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

Fiscal Year Ending Aug.
2009

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

Fiscal Year Ending Aug.
2008

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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Aug.
2007

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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Aug.
2006

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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Aug.
2005

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

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Aug.
2004

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

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Aug.
2003

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

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Aug.
2002

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

990-EZ

Short form tax return for a nonprofit’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.

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Updated April 20, 2026

Trust U/A 8/23/78 M/B Thomas W Armitage For The Hotchkiss School

Organization summary

Type of Nonprofit

Tax Filings by Year

Fiscal Year Ending Aug. 2025

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Aug. 2024

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Aug. 2023

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Aug. 2022

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Aug. 2021

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Aug. 2020

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Aug. 2019

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Document Links

990-PF

Fiscal Year Ending Aug. 2018

No Extracted Financial Data

Document Links

990-PF

Fiscal Year Ending Aug. 2017

No Extracted Financial Data

Document Links

990-PF

Fiscal Year Ending Aug. 2016

No Extracted Financial Data

Document Links

990-PF

Fiscal Year Ending Aug. 2015

Extracted Financial Data

Extracted Financial Data from Form 990-PF

No Document Links

Fiscal Year Ending Aug. 2014

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Document Links

990-PF

Fiscal Year Ending Aug. 2013

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Document Links

990-PF

Fiscal Year Ending Aug. 2012

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Document Links

990-PF

Fiscal Year Ending Aug. 2011

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Document Links

Fiscal Year Ending Aug.
2025

Fiscal Year Ending Aug.
2024

Fiscal Year Ending Aug.
2023

Fiscal Year Ending Aug.
2022

Fiscal Year Ending Aug.
2021

Fiscal Year Ending Aug.
2020

Fiscal Year Ending Aug.
2019

Fiscal Year Ending Aug.
2018

Fiscal Year Ending Aug.
2017

Fiscal Year Ending Aug.
2016

Fiscal Year Ending Aug.
2015

Fiscal Year Ending Aug.
2014

Fiscal Year Ending Aug.
2013

Fiscal Year Ending Aug.
2012

Fiscal Year Ending Aug.
2011

Fiscal Year Ending Aug.
2010

Fiscal Year Ending Aug.
2009

Fiscal Year Ending Aug.
2008

Fiscal Year Ending Aug.
2007

Fiscal Year Ending Aug.
2006

Fiscal Year Ending Aug.
2005

Fiscal Year Ending Aug.
2004

Fiscal Year Ending Aug.
2003

Fiscal Year Ending Aug.
2002