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Nonprofit · EIN 30-0833462

TMT INTERNATIONAL OBSERVATORY LLC

Also known as EDWARD STONE MBR

Tax-exempt · MONROVIA, CA 91016

Financials

$30.1M$16.1M2023$13.2M$16.4M2024
Revenue Expenses · by fiscal year end
Financials of TMT INTERNATIONAL OBSERVATORY LLC by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2024990$13,198,485$16,449,330-$3,250,845$227,866,179$25,568,597$202,297,582
December 31, 2023990$30,051,390$16,100,316$13,951,074$231,193,423$25,644,996$205,548,427
Financial details: 990 for the year ended December 31, 2024

Revenue

Contributions, gifts and grants
$12,385,209
of which government grants
$4,385,209
Program service revenue
$0
Investment income
$788,761
Other revenue
$24,515

Expenses

Grants and similar amounts paid
$20,158
Compensation of officers, directors and key employees
$0
Other salaries and wages
$2,960,222
Salaries, compensation and benefits (total)
$5,574,332
Professional fundraising fees
$0
Legal fees
$561,633
Accounting fees
$64,349
Occupancy
$1,991,438
Travel
$106,885
Depreciation
$236,004
Program services (functional)
$12,614,699
Management and general (functional)
$3,834,631

Balance sheet and other

Total assets, start of year
$231,193,423
Total assets, end of year
$227,866,179
Total liabilities, end of year
$25,568,597
Net assets, end of year
$202,297,582
Land, buildings and equipment
$926,213
Gross receipts
$13,198,485
Employees
55
Volunteers
17
Year formed
2014
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, 2024, highest compensation first.

NameTitleHours / weekCompensationOther / benefits
ROBERT KIRSHNEREXECUTIVE DIRECTOR
Officer
40$837,584$55,942
FENGCHUAN LIUPROJECT MANAGER
Officer
40$372,606$82,382
ERIC HANSENDEPUTY PROJECT MANAGER
Key employee
40$313,164$88,267
JOSE TERANFACILITIES DEPARTMENT HEAD
Highest-paid employee
40$290,711$82,509
BENJAMIN GALLAGHERTELESCOPE OPTICS GROUP LEADER
Highest-paid employee
40$279,677$64,534
CORINNE BOYERADAPTIVE OPTICS GROUP LEADER
Highest-paid employee
40$264,616$72,236
KYLE KINOSHITATELESCOPE STRUCT. GROUP LEADER
Highest-paid employee
40$246,108$60,162
GELYS TRANCHOPROJECT SYSTEMS ENGINEER
Highest-paid employee
40$251,506$48,812
DIANA JERGOVICSECRETARY/GOVERNOR
Trustee or director, Officer
4$0$0
BRUCE MACINTOSHGOVERNOR
Trustee or director
4$0$0
CHRISTOPHER MARTINGOVERNOR
Trustee or director
4$0$0
TOM SOIFERGOVERNOR
Trustee or director
4$0$0
MICHAEL BOLTEGOVERNOR
Trustee or director
4$0$0
HENRY YANGGOVERNOR
Trustee or director
4$0$0
FENG YUANGOVERNOR - END DATE 5/24
Trustee or director
4$0$0
10 more people on this return
NameTitleHours / weekCompensation
XUEFENG WUGOVERNOR - END DATE 5/24
Trustee or director
4$0
SUIJIAN XUEGOVERNOR - END DATE 5/24
Trustee or director
4$0
SAKU TSUNETAGOVERNOR
Trustee or director
4$0
TOMONORI USUDAGOVERNOR
Trustee or director
4$0
GILLES JONCASGOVERNOR
Trustee or director
4$0
MICHITOSHI YOSHIDAGOVERNOR
Trustee or director
4$0
LUC SIMARDGOVERNOR
Trustee or director
4$0
ESWAR REDDYGOVERNOR
Trustee or director
4$0
AN RAMAPRAKASHGOVERNOR
Trustee or director
4$0
MICHAEL BALOGHGOVERNOR - START DATE 1/24
Trustee or director
4$0
990 for the year ended December 31, 2023: 26 people
NameTitleHours / weekCompensationOther / benefits
ROBERT KIRSHNEREXECUTIVE DIRECTOR
Officer
40$803,719$54,819
FENGCHUAN LIUPROJECT MANAGER
Officer
40$350,329$80,120
ERIC HANSENDEPUTY PROJECT MANAGER
Key employee
40$300,346$86,325
JOSE TERANFACILITIES DEPARTMENT HEAD
Highest-paid employee
40$282,548$77,138
CHRISTOPHE DUMASOBSERVATORY SCIENTIST
Highest-paid employee
40$292,384$59,312
BENJAMIN GALLAGHERTELESCOPE OPTICS GROUP LEADER
Highest-paid employee
40$269,178$61,169
CORINNE BOYERADAPTIVE OPTICS GROUP LEADER
Highest-paid employee
40$252,976$71,497
JAMES JOHNSONTELESCOPE CTRL. GROUP LEADER
Highest-paid employee
40$257,880$60,718
DIANA JERGOVICSECRETARY/GOVERNOR
Trustee or director, Officer
4$0$0
BRUCE MACINTOSHGOVERNOR
Trustee or director
4$0$0
CHRISTOPHER MARTINGOVERNOR - START DATE 8/23
Trustee or director
4$0$0
JONAS ZMUIDZINASGOVERNOR - END DATE 8/23
Trustee or director
4$0$0
TOM SOIFERGOVERNOR
Trustee or director
4$0$0
MICHAEL BOLTEGOVERNOR
Trustee or director
4$0$0
HENRY YANGGOVERNOR
Trustee or director
4$0$0
FENG YUANGOVERNOR
Trustee or director
4$0$0
XUEFENG WUGOVERNOR
Trustee or director
4$0$0
SUIJIAN XUEGOVERNOR
Trustee or director
4$0$0
SAKU TSUNETAGOVERNOR
Trustee or director
4$0$0
TOMONORI USUDAGOVERNOR
Trustee or director
4$0$0
GILLES JONCASGOVERNOR - START DATE 8/23
Trustee or director
4$0$0
MICHITOSHI YOSHIDAGOVERNOR
Trustee or director
4$0$0
LUC SIMARDGOVERNOR
Trustee or director
4$0$0
DONALD BROOKSGOVERNOR - END DATE 5/23
Trustee or director
4$0$0
ESWAR REDDYGOVERNOR
Trustee or director
4$0$0
AN RAMAPARKASHGOVERNOR
Trustee or director
4$0$0

Address and contacts

Address (IRS master file)
137 W WALNUT AVE, MONROVIA, CA 91016-3443
In care of
% FRANK MUNOZ
Principal officer (990 for 2024)
ROBERT KIRSHNER, 100 W WALNUT STREET STE 300, PASADENA, CA 91124
Signed the 990
ROBERT KIRSHNER, EXECUTIVE DIRECTOR
Phone
(626) 395-1608
Return prepared by
PwC US Tax LLP

California records

California keeps its own records of charities and corporations. Search them by EIN 30-0833462 or by the name TMT INTERNATIONAL OBSERVATORY LLC.

Attorney General, Registry of Charities and Fundraisers
Registration status and filed reports (CT-TR-1, RRF-1)

Mission

SEE SCHEDULE O

990 for the year ended December 31, 2024

Program accomplishments

  • SEE SCHEDULE O
    Expenses $12,614,699 · grants $20,158

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, 2026Not on file
2024December 31, 2024May 15, 2025990 on file
2023December 31, 2023May 15, 2024990 on file

IRS record

EIN
30-0833462
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
2015
Accounting year ends
December
Files
Form 990 or 990-EZ
Assets (IRS master file)
$227,866,179
Income (IRS master file)
$13,198,485

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2024$13,198,485$16,449,330$227,866,179XML
990December 2023$30,051,390$16,100,316$231,193,423XML
990December 2022$58,918,459$15,439,309$225,068,605IRS
990December 2021–––IRS
990December 2020–––IRS
990December 2018–––IRS
990December 2017–––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 30-0833462).

Questions about TMT INTERNATIONAL OBSERVATORY LLC

What is the EIN of TMT INTERNATIONAL OBSERVATORY LLC?
The employer identification number (EIN) of TMT INTERNATIONAL OBSERVATORY LLC is 30-0833462.
Is TMT INTERNATIONAL OBSERVATORY LLC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2015.
Are donations to TMT INTERNATIONAL OBSERVATORY LLC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does TMT INTERNATIONAL OBSERVATORY LLC 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 TMT INTERNATIONAL OBSERVATORY LLC due?
The return for tax year 2025 (the year ending December 31, 2025) is due May 15, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did TMT INTERNATIONAL OBSERVATORY LLC last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended December 2024.
Who is the principal officer of TMT INTERNATIONAL OBSERVATORY LLC?
The 990 for the year ended December 31, 2024 names ROBERT KIRSHNER.
Who are the officers and directors of TMT INTERNATIONAL OBSERVATORY LLC?
The 990 for the year ended December 31, 2024 lists 25 people; 8 received compensation from the organization, the highest $837,584 (ROBERT KIRSHNER, EXECUTIVE DIRECTOR).
How much revenue does TMT INTERNATIONAL OBSERVATORY LLC have?
On its 990 for the year ended December 31, 2024 it reported revenue of $13,198,485, expenses of $16,449,330 and total assets of $227,866,179 at year end.

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