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Nonprofit · EIN 27-1652696

INTERNATIONAL THYMIC MALIGNANCY INTEREST GROUP

Tax-exempt · SLEEPY HOLLOW, NY 10591

Financials

$164K$143K2023$374K$230K2024$217K$313K2025
Revenue Expenses · by fiscal year end
Financials of INTERNATIONAL THYMIC MALIGNANCY INTEREST GROUP by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990 (amended)$216,569$313,492-$96,923$215,219$0$215,219
December 31, 2024990 (amended)$373,790$229,580$144,210$312,142$0$312,142
December 31, 2023990-EZ (amended)$164,486$142,903$21,583$167,923–$167,923
Financial details: 990 for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$216,569
Program service revenue
$0
Investment income
$0
Other revenue
$0

Expenses

Grants and similar amounts paid
$0
Salaries, compensation and benefits (total)
$0
Professional fundraising fees
$0
Program services (functional)
$254,492
Management and general (functional)
$59,000

Balance sheet and other

Total assets, start of year
$316,149
Total assets, end of year
$215,219
Total liabilities, end of year
$0
Net assets, end of year
$215,219
Net assets without donor restrictions
$215,219
Gross receipts
$216,569
Employees
0
Year formed
2010
State of legal domicile
DE

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990 for the year ended December 31, 2025, highest compensation first.

NameTitleHours / weekCompensation
Pam BruceExecutive director
Key employee
40$0
Dirk Van RaemdonckPresident
Trustee or director
25$0
Paolo MendogniVice President
Trustee or director
25$0
Chul KimSecretary
Trustee or director
25$0
Annemarie Fernandes ShepherdTreasurer
Trustee or director
25$0
990 for the year ended December 31, 2024: 5 people
NameTitleHours / weekCompensation
Pam BruceDirector
Key employee
40$0
Dr Malgorzata SzolkowskaPresident
Trustee or director
25$0
Dr Paolo MendogniSecretary
Trustee or director
25$0
Dr Annemarie Fernandes ShepherdTreasurer
Trustee or director
25$0
Dr Dirk Van RaemdonckVjce President
Trustee or director
25$0
990-EZ for the year ended December 31, 2023: 5 people
NameTitleHours / weekCompensation
Pam BruceExecutive Director40$28,000
Dr Anja RodenPresident25$0
Dr Malgorzata SzolkowskaVice-president25$0
Dr Paolo MendogniSecretary25$0
Dr Dirk Van RaemdonckTreasurer25$0

Address and contacts

Address (IRS master file)
102 LEGEND DRIVE, SLEEPY HOLLOW, NY 10591-3400
In care of
% ALAN NEIBAUER
Principal officer (990 for 2025)
Alan Neibauer, 155 E Boca Raton Rd, 718, Boca Raton, FL 33432
Signed the 990
Alan Neibauer, Member
Phone
(609) 214-8616

Mission

The mission of ITMIG is to promote the advancement of clinical and basic science pertaining to thymic and other mediastinal malignancies and related conditions ITMIG is a multidisciplinary group currently consisting of surgeons, pathologists, imaging specialists, oncologists, and neurologists, aiming for better management of patients with thymic tumors through an optimized interaction between the disciplines. The academic journal Mediastinum has become the official journal of the International Thymic Malignancy Interest Group! This represents a collaborative partnership between two institutions. The ITMIG database is a major resource for studying the characteristics, treatment strategies, and outcomes of patients with thymic malignancies, has reopened More than 2000 patients are enrolled.

990 for the year ended December 31, 2025

Program accomplishments

  • ITMIG is aligned with the Foundation for Thymic Cancer Research to advance program services through coordination of the executive director. The executive director is responsible for all activities related to the organization and all program services.
    Expenses $183,000
  • Research and related expenses. The ITMIG database is a major resource for studying the characteristics, treatment strategies, and outcomes of patients with thymic malignancies. More than 2000 patients are enrolled. The database is open to all researches and has data transfer agreements with all major institutions.
    Expenses $75,000
  • The 2024 Annual Meeting was held in Yokohama, Japan, in collaboration with the Japan Lung Cancer Society. The abstract book from the meeting is available in MEDIASTINUM.
    Expenses $55,672

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025December 31, 2025May 15, 2026990 on file
2024December 31, 2024May 15, 2025990 on file
2023December 31, 2023May 15, 2024990-EZ on file

IRS record

EIN
27-1652696
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (170(b)(1)(A)(vi))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
2010
Accounting year ends
December
Files
Form 990 or 990-EZ
Category (NTEE)
Medical research (H19)
Assets (IRS master file)
$215,219
Income (IRS master file)
$216,569

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2025$216,569$313,492$215,219XML
990December 2024$373,790$229,580$312,142XML
990-EZDecember 2023$164,486$142,903$167,923XML
990-EZDecember 2022–––IRS
990-EZDecember 2021–––IRS

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 27-1652696).

Questions about INTERNATIONAL THYMIC MALIGNANCY INTEREST GROUP

What is the EIN of INTERNATIONAL THYMIC MALIGNANCY INTEREST GROUP?
The employer identification number (EIN) of INTERNATIONAL THYMIC MALIGNANCY INTEREST GROUP is 27-1652696.
Is INTERNATIONAL THYMIC MALIGNANCY INTEREST GROUP tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2010.
Are donations to INTERNATIONAL THYMIC MALIGNANCY INTEREST GROUP tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does INTERNATIONAL THYMIC MALIGNANCY INTEREST GROUP file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of INTERNATIONAL THYMIC MALIGNANCY INTEREST GROUP due?
The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did INTERNATIONAL THYMIC MALIGNANCY INTEREST GROUP last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended December 2025.
Who is the principal officer of INTERNATIONAL THYMIC MALIGNANCY INTEREST GROUP?
The 990 for the year ended December 31, 2025 names Alan Neibauer.
Who are the officers and directors of INTERNATIONAL THYMIC MALIGNANCY INTEREST GROUP?
The 990 for the year ended December 31, 2025 lists 5 people; 0 received compensation from the organization.
How much revenue does INTERNATIONAL THYMIC MALIGNANCY INTEREST GROUP have?
On its 990 for the year ended December 31, 2025 it reported revenue of $216,569, expenses of $313,492 and total assets of $215,219 at year end.

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