Nonprofit · EIN 95-3248387
AGOURON INSTITUTE
Tax-exempt · PASADENA, CA 91107
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| June 30, 2025 | 990-PF | $1,853,788 | $2,575,826 | -$722,038 | $10,787,084 | $0 | $10,787,084 |
| June 30, 2024 | 990-PF | $3,384,641 | $7,895,285 | -$4,510,644 | $11,509,122 | $0 | $11,509,122 |
| June 30, 2023 | 990-PF | $965,251 | $2,781,959 | -$1,816,708 | $16,019,766 | $0 | $16,019,766 |
Financial details: 990-PF for the year ended June 30, 2025
Revenue
- Dividends
- $405,603
- Net gain from sales of assets
- $1,448,185
Expenses
- Grants and similar amounts paid
- $1,807,866
- Compensation of officers, directors and key employees
- $148,000
- Salaries, compensation and benefits (total)
- $350,838
- Disbursements for charitable purposes
- $2,439,719
- Excise tax on investment income
- $23,886
Balance sheet and other
- Total assets, start of year
- $11,509,122
- Total assets, end of year
- $10,787,084
- Total liabilities, end of year
- $0
- Net assets, end of year
- $10,787,084
- Fair market value of assets
- $14,811,344
- Qualifying distributions
- $2,439,719
- Net investment income
- $1,853,788
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-PF for the year ended June 30, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| JOAN KOBORI 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | SCIENTIST Highest-paid employee | 40 | $248,190 | $24,708 |
| JOYCE KATO 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | EXEC ASSISTANT Highest-paid employee | 40 | $102,648 | $10,220 |
| DR MELVIN SIMON 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | CHAIRMAN | 30 | $57,500 | $0 |
| DR JOHN ABELSON 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | PRESIDENT | 30 | $57,500 | $0 |
| GARY FRIEDMAN 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | EXEC VP & SEC | 40 | $33,000 | $0 |
| EDWARD STOLPER 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | DIRECTOR | 5 | $0 | $0 |
| DR THEODORE FRIEDMANN 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | DIRECTOR | 5 | $0 | $0 |
| DR GORDON GILL 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | DIRECTOR | 5 | $0 | $0 |
| DR DAVID HIRSCH 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | DIRECTOR | 15 | $0 | $0 |
| DR DEBORAH SPECTOR 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | DIRECTOR | 5 | $0 | $0 |
| PETER JOHNSON 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | DIRECTOR | 15 | $0 | $0 |
| DR JOHN GROTZINGER 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | DIRECTOR | 5 | $0 | $0 |
990-PF for the year ended June 30, 2024: 12 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| JOAN KOBORI 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | SCIENTIST Highest-paid employee | 40 | $238,645 | $23,615 |
| DR MELVIN SIMON 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | CHAIRMAN | 30 | $130,000 | $0 |
| DR JOHN ABELSON 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | PRESIDENT | 30 | $130,000 | $0 |
| JOYCE KATO 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | EXEC ASSISTANT Highest-paid employee | 40 | $98,700 | $9,768 |
| GARY FRIEDMAN 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | EXEC VP & SEC | 40 | $91,000 | $0 |
| DR DAVID HIRSCH 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | DIRECTOR | 15 | $25,000 | $0 |
| PETER JOHNSON 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | DIRECTOR | 15 | $25,000 | $0 |
| EDWARD STOLPER 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | DIRECTOR | 5 | $15,000 | $0 |
| DR THEODORE FRIEDMANN 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | DIRECTOR | 5 | $15,000 | $0 |
| DR DEBORAH SPECTOR 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | DIRECTOR | 5 | $15,000 | $0 |
| DR JOHN GROTZINGER 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | DIRECTOR | 5 | $15,000 | $0 |
| DR GORDON GILL 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | DIRECTOR | 5 | $0 | $0 |
990-PF for the year ended June 30, 2023: 12 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| JOAN KOBORI 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | SCIENTIST Highest-paid employee | 40 | $233,792 | $21,251 |
| DR MELVIN SIMON 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | CHAIRMAN | 30 | $145,010 | $0 |
| DR JOHN ABELSON 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | PRESIDENT | 30 | $145,000 | $0 |
| GARY FRIEDMAN 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | EXEC VP & SEC | 40 | $116,000 | $0 |
| JOYCE KATO 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | EXEC ASSISTANT Highest-paid employee | 40 | $96,693 | $8,790 |
| DR DAVID HIRSCH 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | DIRECTOR | 15 | $50,000 | $0 |
| PETER JOHNSON 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | DIRECTOR | 15 | $50,000 | $0 |
| EDWARD STOLPER 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | DIRECTOR | 5 | $30,000 | $0 |
| DR THEODORE FRIEDMANN 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | DIRECTOR | 5 | $30,000 | $0 |
| DR DEBORAH SPECTOR 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | DIRECTOR | 5 | $30,000 | $0 |
| DR JOHN GROTZINGER 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | DIRECTOR | 5 | $30,000 | $0 |
| DR GORDON GILL 1055 E COLORADO BLVD 250, PASADENA, CA 91106 | DIRECTOR | 5 | $15,000 | $0 |
Address and contacts
- Address (IRS master file)
- 630 N ROSEMEAD BLVD SUITE 110, PASADENA, CA 91107-2131
- Signed the 990-PF
- DR MELVIN SIMON, OFFICER
- Phone
- (626) 577-0500
- Website
- WWW.AGI.ORG
- Return prepared by
- LUCAS HORSFALL ADVISORS LLC
California records
California keeps its own records of charities and corporations. Search them by EIN 95-3248387 or by the name AGOURON INSTITUTE.
- Attorney General, Registry of Charities and Fundraisers
- Registration status and filed reports (CT-TR-1, RRF-1)
- Secretary of State, bizfile Online
- Corporation status, entity number, agent for service
- Franchise Tax Board
- Entity status letter (state tax exemption, good standing)
What it must file and when
IRS records say it files Form 990-PF. Private foundations file every year. Its accounting year ends in June, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | June 30, 2026 | November 16, 2026 | Not due yet |
| 2024 | June 30, 2025 | November 17, 2025 | 990-PF on file |
| 2023 | June 30, 2024 | November 15, 2024 | 990-PF on file |
IRS record
- EIN
- 95-3248387
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Private non-operating foundation
- Donations deductible (Pub 78)
- Private foundation, 30% limit
- Exempt since
- 1980
- Accounting year ends
- June
- Files
- Form 990-PF
- Category (NTEE)
- Medical research (H920)
- Assets (IRS master file)
- $10,787,084
- Income (IRS master file)
- $4,376,832
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | June 2025 | $1,853,788 | $2,575,826 | $10,787,084 | XML |
| 990-PF | June 2024 | $3,384,641 | $7,895,285 | $11,509,122 | IRS |
| 990-PF | June 2023 | $965,251 | $2,781,959 | $16,019,766 | XML |
| 990-PF | June 2022 | – | – | – | IRS |
| 990-PF | June 2021 | – | – | – | IRS |
| 990-PF | June 2020 | – | – | – | IRS |
| 990-PF | June 2018 | – | – | – | 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 95-3248387).
Questions about AGOURON INSTITUTE
- What is the EIN of AGOURON INSTITUTE?
- The employer identification number (EIN) of AGOURON INSTITUTE is 95-3248387.
- Is AGOURON INSTITUTE tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1980.
- Are donations to AGOURON INSTITUTE tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does AGOURON INSTITUTE file?
- Form 990-PF. Private foundations file every year.
- When is the next return of AGOURON INSTITUTE due?
- The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did AGOURON INSTITUTE last file with the IRS?
- The latest return in the IRS public files is the 990-PF for the year ended June 2025.
- Who are the officers and directors of AGOURON INSTITUTE?
- The 990-PF for the year ended June 30, 2025 lists 12 people; 5 received compensation from the organization, the highest $248,190 (JOAN KOBORI, SCIENTIST).
- How much revenue does AGOURON INSTITUTE have?
- On its 990-PF for the year ended June 30, 2025 it reported revenue of $1,853,788, expenses of $2,575,826 and total assets of $10,787,084 at year end.
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