Tang Research Foundation

Skokie, IL
Tax-exempt since Aug. 1994
EIN: 36-3857626

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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.

Revenue

$601k (2024)

Expenses

$528k (2024)

Total Assets

$6.69M (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

$601,460

Expenses

$527,874

Net Income

$73,586

Net Assets

$6,689,633

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$237,347	39.5%
Sales of Assets	$364,113	60.5%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$468,252	88.7%
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	$6,689,633
Total Liabilities	$0
Net Assets	$6,689,633

Compensation

Key Employees and Officers	Compensation	Other
Andrew Eisenberg (Coo)	$0	$0
Luou Xin (President)	$0	$0
Mark Lam (Managing Direct)	$0	$0
Jason Steuber (Secretary)	$0	$0

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990-PF

Filed on Nov. 11, 2025

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

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Fiscal Year Ending Dec.
2023

Revenue

$376,569

Expenses

$570,680

Net Income

-$194,111

Net Assets

$6,616,047

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$233,293	62.0%
Sales of Assets	$143,276	38.0%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$506,924	88.8%
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	$6,616,047
Total Liabilities	$0
Net Assets	$6,616,047

Compensation

Key Employees and Officers	Compensation	Other
Andrew Eisenberg (Coo)	$0	$0
Luou Xin (President)	$0	$0
Mark Lam (Managing Direct)	$0	$0
Jason Steuber (Secretary)	$0	$0

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990-PF

Filed on Aug. 29, 2024

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

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Fiscal Year Ending Dec.
2022

Revenue

$272,049

Expenses

$632,347

Net Income

-$360,298

Net Assets

$6,810,158

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$235,169	86.4%
Sales of Assets	$36,880	13.6%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$553,955	87.6%
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	$6,810,158
Total Liabilities	$0
Net Assets	$6,810,158

Compensation

Key Employees and Officers	Compensation	Other
Andrew Eisenberg (Coo)	$0	$0
Luou Xin (President)	$0	$0
Mark Lam (Managing Direct)	$0	$0
Jason Steuber (Secretary)	$0	$0

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990-PF

Filed on Oct. 22, 2023

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

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Fiscal Year Ending Dec.
2021

Revenue

$847,271

Expenses

$604,474

Net Income

$242,797

Net Assets

$7,170,456

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$236,023	27.9%
Sales of Assets	$611,248	72.1%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$522,776	86.5%
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	$7,170,456
Total Liabilities	$0
Net Assets	$7,170,456

Compensation

Key Employees and Officers	Compensation	Other
Andrew Eisenberg (Coo)	$0	$0
Luou Xin (President)	$0	$0
Mark Lam (Managing Direct)	$0	$0
Jason Steuber (Secretary)	$0	$0

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990-PF

Filed on Aug. 21, 2022

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

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Fiscal Year Ending Dec.
2020

Revenue

$630,253

Expenses

$552,528

Net Income

$77,725

Net Assets

$6,927,658

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$194,889	30.9%
Sales of Assets	$435,364	69.1%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$483,385	87.5%
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	$6,927,659
Total Liabilities	$1
Net Assets	$6,927,658

Compensation

Key Employees and Officers	Compensation	Other
Andrew Eisenberg (Coo)	$0	$0
Luou Xin (President)	$0	$0
Mark Lam (Managing Direct)	$0	$0
Jason Steuber (Secretary)	$0	$0

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990-PF

Filed on Aug. 10, 2021

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

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Fiscal Year Ending Dec.
2019

Revenue

$327,863

Expenses

$499,399

Net Income

-$171,536

Net Assets

$6,849,933

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$217,753	66.4%
Sales of Assets	$110,110	33.6%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$447,669	89.6%
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	$6,849,934
Total Liabilities	$1
Net Assets	$6,849,933

Compensation

Key Employees and Officers	Compensation	Other
Andrew Eisenberg (Coo)	$0	$0
Luou Xin (President)	$0	$0
Mark Lam (Managing Direct)	$0	$0
Jason Steuber (Secretary)	$0	$0

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990-PF

Filed on Nov. 10, 2020

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

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Fiscal Year Ending Dec.
2018

Revenue

$117,461

Expenses

$549,368

Net Income

-$431,907

Net Assets

$7,021,470

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$90,331	76.9%
Sales of Assets	$27,130	23.1%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$516,672	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	$7,021,470
Total Liabilities	$0
Net Assets	$7,021,470

Compensation

Key Employees and Officers	Compensation	Other
Andrew Eisenberg (Coo)	$0	$0
Luou Xin (President)	$0	$0
Mark Lam (Managing Direct)	$0	$0
Jason Steuber (Secretary)	$0	$0

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990-PF

Filed on Nov. 12, 2019

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

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Fiscal Year Ending Dec.
2017

Revenue

$325,633

Expenses

$513,175

Net Income

-$187,542

Net Assets

$7,453,377

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$86,253	26.5%
Sales of Assets	$239,380	73.5%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$488,003	95.1%
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	$7,453,377
Total Liabilities	$0
Net Assets	$7,453,377

Compensation

Key Employees and Officers	Compensation	Other
Andrew Eisenberg (Coo)	$0	$0
Luo Xin (President)	$0	$0
Mark Lam (Managing Direct)	$0	$0
Jason Steuber (Secretary)	$0	$0

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990-PF

Filed on Nov. 11, 2018

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

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Fiscal Year Ending Dec.
2016

Revenue

$5,568,228

Expenses

$531,463

Net Income

$5,036,765

Net Assets

$7,640,919

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$5,475,778	98.3%
Interest Revenue	$0
Dividends	$74,872	1.3%
Sales of Assets	$17,578	0.3%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$504,779	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	$7,640,919
Total Liabilities	$0
Net Assets	$7,640,919

Compensation

Key Employees and Officers	Compensation	Other
Andrew Eisenberg (Treasurer)	$0	$0
Luo Xin (President)	$0	$0
Mark Lam (Managing Direct)	$0	$0
Jason Steuber (Secretary)	$0	$0

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990-PF

Filed on Nov. 12, 2017

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

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Fiscal Year Ending Dec.
2015

Revenue

$43,355

Expenses

$400,632

Net Income

-$357,277

Net Assets

$2,604,154

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$4,750	11.0%
Interest Revenue	$0
Dividends	$24,106	55.6%
Sales of Assets	-$5,450
Other Income	$19,949	46.0%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$168,612	42.1%
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	$2,604,154
Total Liabilities	$0
Net Assets	$2,604,154

Compensation

Key Employees and Officers	Compensation	Other
Luo Xin (Director / President)	$0	$0
Mark Lam (Director / Managing Director)	$0	$0
Jason Steuber (Director / Secretary)	$0	$0
Andrew Eisenberg (Director / Treasurer)	$0	$0

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990-PF

Filed on Nov. 15, 2016

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

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Fiscal Year Ending Dec.
2014

Revenue

$427,732

Expenses

$162,552

Net Income

$265,180

Net Assets

$2,962,250

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$19,292	4.5%
Interest Revenue	$0
Dividends	$31,819	7.4%
Sales of Assets	$376,621	88.1%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$122,965	75.6%
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	$2,962,250
Total Liabilities	$0
Net Assets	$2,962,250

Compensation

Key Employees and Officers	Compensation	Other
Luo Xin (Director / President)	$0	$0
Mark Lam (Director / Managing Director)	$0	$0
Jason Steuber (Director / Secretary)	$0	$0
Andrew Eisenberg (Director / Treasurer)	$0	$0

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990-PF

Filed on Nov. 9, 2015

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

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Fiscal Year Ending Dec.
2013

Revenue

$80,405

Expenses

$79,689

Net Income

$716

Net Assets

$2,697,070

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$20,273	25.2%
Sales of Assets	$60,132	74.8%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$72,737	91.3%
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	$2,697,070
Total Liabilities	$0
Net Assets	$2,697,070

Compensation

Key Employees and Officers	Compensation	Other
Luo Xin (President)	$0	$0
Mark Lam (Managing Director)	$0	$0
Jason Steuber (Secretary)	$0	$0
Andrew Eisenberg (Treasurer)	$0	$0

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990-PF

Filed on Aug. 12, 2014

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

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Fiscal Year Ending Dec.
2012

Revenue

$30,982

Expenses

$81,649

Net Income

-$50,667

Net Assets

$896,354

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$25,065	80.9%
Sales of Assets	$5,917	19.1%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$79,185	97.0%
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	$896,354
Total Liabilities	$0
Net Assets	$896,354

990-PF

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

PDF

Fiscal Year Ending Dec.
2011

Revenue

$48,863

Expenses

$126,541

Net Income

-$77,678

Net Assets

$947,019

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$24,863	50.9%
Sales of Assets	$24,000	49.1%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$123,585	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	$947,019
Total Liabilities	$0
Net Assets	$947,019

990-PF

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

PDF

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Nonprofit Explorer includes summary data for nonprofit tax returns and full Form 990 documents, in both PDF and digital formats.

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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.

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Updated January 26, 2026

Tang Research Foundation

Organization summary

Type of Nonprofit

Summary charts: organization finances over time

Revenue $601k (2024)

Expenses $528k (2024)

Total Assets $6.69M (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

$601k (2024)

Expenses

$528k (2024)

Total Assets

$6.69M (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

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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.
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Fiscal Year Ending Dec.
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Fiscal Year Ending Dec.
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2002

Fiscal Year Ending Dec.
2001