- Revenue 2024
- $468,809,827
- Expenses 2024
- $465,014,744
Program services were 91.0% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.
As filed
- Subsection
- 03
- NTEE code
- U31C
- Classification
- 8000
- Street
- 1331 PENNSYLVANIA AVE NW STE 1475
These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).
Officers and directors · 2024
As listed in Part VII of the 2024 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.
-
CHARLES MOUNTAIN
PRESIDENT
- Total calculated
- $667,437
- From this org
- $603,661
- From related orgs
- $0
- Other
- $63,776
- Hours/week
- 40 + 1 related
Schedule J breakdown matched by us
- Base
- $563,298
- Bonus
- $10,000
- Other
- $30,363
- Deferred
- $34,500
- Nontaxable benefits
- $29,276
- Filer's total
- $667,437
-
KAREN BJORKMAN
CHAIR
- Total calculated
- $0
- Hours/week
- 0.5
-
ANDREW BAKER
VICE CHAIR (THRU 06/25)
- Total calculated
- $0
- Hours/week
- 0.5
-
EMILY COBABE-AMMANN
VICE CHAIR
- Total calculated
- $0
- Hours/week
- 0.5
-
ELIZABETH BARTON
DIRECTOR (THRU 06/25)
- Total calculated
- $0
- Hours/week
- 0.5
-
GEORGE BLUMENTHAL
DIRECTOR
- Total calculated
- $0
- Hours/week
- 0.5
-
JAMES BULLOCK
DIRECTOR
- Total calculated
- $0
- Hours/week
- 0.5
-
KELLE CRUZ
DIRECTOR
- Total calculated
- $0
- Hours/week
- 0.5
-
ROGER DAVIES
DIRECTOR
- Total calculated
- $0
- Hours/week
- 0.5
-
MEGAN DONAHUE
DIRECTOR
- Total calculated
- $0
- Hours/week
- 0.5
-
BRENNA FLAUGHER
DIRECTOR
- Total calculated
- $0
- Hours/week
- 0.5
-
RAJA GUHA THAKURTA
DIRECTOR
- Total calculated
- $0
- Hours/week
- 0.5
-
TIM HECKMAN
DIRECTOR
- Total calculated
- $0
- Hours/week
- 0.5
-
LEOPOLDO INFANTE
DIRECTOR
- Total calculated
- $0
- Hours/week
- 0.5
-
DAN JAFFE
DIRECTOR (THRU 06/25)
- Total calculated
- $0
- Hours/week
- 0.5
-
JAMES MCATEER
DIRECTOR
- Total calculated
- $0
- Hours/week
- 0.5
-
SALLY OEY
DIRECTOR (THRU 06/25)
- Total calculated
- $0
- Hours/week
- 0.5
-
JEROME OGLESBY
DIRECTOR (THRU 06/25)
- Total calculated
- $0
- Hours/week
- 0.5
-
KATIE OLSEN
DIRECTOR
- Total calculated
- $0
- Hours/week
- 0.5
-
DAVID REITZE
DIRECTOR
- Total calculated
- $0
- Hours/week
- 0.5
-
WILLIE ROCKWARD
DIRECTOR (THRU 06/25)
- Total calculated
- $0
- Hours/week
- 0.5
-
MONICA RUBIO
DIRECTOR
- Total calculated
- $0
- Hours/week
- 0.5
-
BARBARA LAM
VP OF OPERATIONS/CFO
- Total calculated
- $402,229
- From this org
- $335,494
- From related orgs
- $0
- Other
- $66,735
- Hours/week
- 40 + 1 related
Schedule J breakdown matched by us
- Base
- $325,320
- Bonus
- $10,000
- Other
- $174
- Deferred
- $33,005
- Nontaxable benefits
- $33,730
- Filer's total
- $402,229
-
NANCI REICH
DIRECTOR - CORP GOVERNANCE
- Total calculated
- $199,865
- From this org
- $151,222
- From related orgs
- $0
- Other
- $48,643
- Hours/week
- 40 + 1 related
Schedule J breakdown matched by us
- Base
- $148,785
- Bonus
- $1,620
- Other
- $817
- Deferred
- $15,411
- Nontaxable benefits
- $33,232
- Filer's total
- $199,865
-
LEE CURTIS
CHIEF OF STAFF
- Total calculated
- $245,474
- From this org
- $199,242
- From related orgs
- $0
- Other
- $46,232
- Hours/week
- 40
Schedule J breakdown matched by us
- Base
- $199,076
- Bonus
- $0
- Other
- $166
- Deferred
- $20,277
- Nontaxable benefits
- $25,955
- Filer's total
- $245,474
The first 25 listed. Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead — compensation, contributions to benefit plans, and expense account — and the total sums those. A Schedule J breakdown is as filed: base pay, bonus, other, deferred compensation and nontaxable benefits from this organization, with any from related organizations beside each, and the filer's own total. It is shown with the Part VII listing of the same name on the same return. The form gives no key between the two, so that pairing is ours, and is marked matched by us. Earlier years are each on their own filing page.
Filings
-
2024
- Revenue
- $468,809,827
- Expenses
- $465,014,744
- Contributions
- $246,659,705
- Grants paid
- $67,764,530
-
2023
- Revenue
- $450,393,254
- Expenses
- $447,255,915
- Contributions
- $244,021,913
- Grants paid
- $57,456,417
-
2022
- Revenue
- $420,912,916
- Expenses
- $419,441,241
- Contributions
- $225,915,061
- Grants paid
- $50,962,760
The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.
Grants made
-
$3,824,351
2024 SUPPORT TO MAINTAIN TELESCOPE OBSERVATORIES
-
$3,189,660
2023 SCIENTIFIC RESEARCH ON DATA FROM HUBBLE SPACE TELESCOPE
-
CALIFORNIA INSTITUTE OF TECHNOLOGY
$2,937,782
2024 SCIENTIFIC RESEARCH ON DATA FROM HUBBLE SPACE TELESCOPE AND/OR JAMES WEBB SPACE TELESCOPE
-
$2,732,848
2022 SCIENTIFIC RESEARCH ON DATA FROM HUBBLE SPACE TELESCOPE
-
UNIVERSITY OF CALIFORNIA - BERKELEY
$2,665,205
2022 SCIENTIFIC RESEARCH ON DATA FROM HUBBLE SPACE TELESCOPE
-
CALIFORNIA INSTITUTE OF TECHNOLOGY
$2,508,484
2023 SCIENTIFIC RESEARCH ON DATA FROM HUBBLE SPACE TELESCOPE
-
$2,480,059
2022 SCIENTIFIC RESEARCH AND DEVELOPMENT FOR THE US EXTREMELY LARGE TELESCOPE PROGRAM
-
$2,349,068
2022 SCIENTIFIC RESEARCH AND DEVELOPMENT FOR THE WIYN 3.5 EXTREMELY LARGE TELESCOPE PROGRAM
-
UNIVERSITY OF CALIFORNIA - BERKELEY
$2,263,780
2024 SCIENTIFIC RESEARCH ON DATA FROM HUBBLE SPACE TELESCOPE AND/OR JAMES WEBB SPACE TELESCOPE
-
$2,231,950
2024 SCIENTIFIC RESEARCH ON DATA FROM HUBBLE SPACE TELESCOPE AND/OR JAMES WEBB SPACE TELESCOPE
The 10 largest by cash amount. The API serves every itemized grant.
Grants received
-
TRUSTEES OF COLUMBIA UNIVERSITY
$47,543
2022 Research
-
2022 RESEARCH
-
$26,308
2022 SUB-AWARD
-
$24,093
2024 SUB-AWARD
-
TRUSTEES OF COLUMBIA UNIVERSITY
$20,759
2023 RESEARCH
-
2022 COLLAB RESEARCH
-
$14,177
2024 SPONSORED SUB-AWD
-
$13,827
2023 SUB-AWARD
-
2023 COLLAB RESEARCH
-
$8,680
2024 RESEARCH
The 10 largest by cash amount. The API serves every itemized grant.
Related organizations
From Schedule R Part II, where a filer lists the tax-exempt organizations it is related to by control. It does not record shared board members or money.
Declared on its 2024 return
-
AURA RETIREE HEALTH BENEFIT TRUST
501(C)(9) · TO PROVIDE POST-RETIREMENT HEALTH BENEFITS · DC · controlled entity
Other IRS files
Auto-Revocation List
Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.
Publication 78
Listed as of 10 September 2026, under deductibility PC.
These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.