Nonprofit · EIN 33-0683174
MARGOT MARSH BIODIVERSITY FOUNDATION
Tax-exempt · NEW YORK, NY 10020
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $466,312 | $566,801 | -$100,489 | $1,735,792 | $0 | $1,735,792 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Dividends
- $68,103
- Net gain from sales of assets
- $397,245
- Other income
- $964
Expenses
- Grants and similar amounts paid
- $448,900
- Compensation of officers, directors and key employees
- $80,000
- Disbursements for charitable purposes
- $527,928
- Excise tax on investment income
- $6,007
Balance sheet and other
- Total assets, start of year
- $1,836,281
- Total assets, end of year
- $1,735,792
- Total liabilities, end of year
- $0
- Net assets, end of year
- $1,735,792
- Fair market value of assets
- $2,851,073
- Qualifying distributions
- $527,928
- Net investment income
- $465,348
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 December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| WILLIAM KONSTANT 1 ROCKEFELLER PLAZA 7TH FLOOR, NEW YORK, NY 10020 | DIRECTOR | 5 | $40,000 |
| RUSSELL MITTERMEIER 1 ROCKEFELLER PLAZA 7TH FLOOR, NEW YORK, NY 10020 | PRESIDENT | 1 | $10,000 |
| RICK BARONGI 1200 PROSPECT STREET SUITE 575, LA JOLLA, CA 92037 | SECRETARY | 1 | $10,000 |
| H WILLIAMSON GHRISKEY JR 1 ROCKEFELLER PLAZA 7TH FLOOR, NEW YORK, NY 10020 | VP & CFP | 1 | $10,000 |
| KENNETH GLADNER 1028 WHITEHALL CIR, DURHAM, NC 27713 | DIRECTOR | 1 | $5,000 |
| THAYNE MAYNARD 1 ROCKEFELLER PLAZA 7TH FLOOR, NEW YORK, NY 10020 | DIRECTOR | 1 | $5,000 |
Address and contacts
- Address (IRS master file)
- 1 ROCKEFELLER PLAZA 7TH FLOOR, NEW YORK, NY 10020-2078
- In care of
- % TRAINER WORTHAM AND COMPANY
- Signed the 990-PF
- H WILLIAMSON GHRISKEY JR, VP & CFP
- Phone
- (212) 269-7818
- Return prepared by
- BAKER TILLY ADVISORY GROUP LP
What it must file and when
IRS records say it files Form 990-PF. Private foundations file every year. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990-PF on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990-PF on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990-PF on file |
IRS record
- EIN
- 33-0683174
- 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
- 1996
- Accounting year ends
- December
- Files
- Form 990-PF
- Category (NTEE)
- Philanthropy, voluntarism and grantmaking foundations (T99Z)
- Assets (IRS master file)
- $1,735,792
- Income (IRS master file)
- $1,089,141
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | – | – | – | IRS |
| 990-PF | December 2024 | – | – | – | IRS |
| 990-PF | December 2023 | $246,269 | $559,411 | $2,091,195 | IRS |
| 990-PF | December 2022 | – | – | – | IRS |
| 990-PF | December 2021 | – | – | – | IRS |
| 990-PF | December 2020 | – | – | – | IRS |
| 990-PF | December 2018 | – | – | – | IRS |
990-N: the IRS publishes only the latest e-Postcard per organization; earlier years appear here as 990.tax collects the monthly files. 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.
Questions about MARGOT MARSH BIODIVERSITY FOUNDATION
- What is the EIN of MARGOT MARSH BIODIVERSITY FOUNDATION?
- The employer identification number (EIN) of MARGOT MARSH BIODIVERSITY FOUNDATION is 33-0683174.
- Is MARGOT MARSH BIODIVERSITY FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1996.
- Are donations to MARGOT MARSH BIODIVERSITY FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does MARGOT MARSH BIODIVERSITY FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of MARGOT MARSH BIODIVERSITY FOUNDATION 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 MARGOT MARSH BIODIVERSITY FOUNDATION last file with the IRS?
- The latest return in the IRS public files is the 990-PF for the year ended December 2025.
- Who are the officers and directors of MARGOT MARSH BIODIVERSITY FOUNDATION?
- The 990-PF for the year ended December 31, 2025 lists 6 people; 6 received compensation from the organization, the highest $40,000 (WILLIAM KONSTANT, DIRECTOR).
- How much revenue does MARGOT MARSH BIODIVERSITY FOUNDATION have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $466,312, expenses of $566,801 and total assets of $1,735,792 at year end.
Other nonprofits in NEW YORK
- GS DONOR ADVISED PHILANTHROPY FUND FOR WEALTH MANAGEMENT INC EIN 31-1774905 · last filed 990 for 2024
- JEWISH COMMUNAL FUND EIN 23-7174183 · last filed 990 for 2025
- ROCKEFELLER PHILANTHROPY ADVISORS INC EIN 13-3615533 · last filed 990 for 2024
- THE JEWISH FEDERATIONS OF NORTH AMERICA INC EIN 13-1624240 · last filed 990 for 2025
- UNITED JEWISH APPEAL FEDERATION OF JEWISH PHILANTHROPIES OF NY INC EIN 51-0172429 · last filed 990 for 2025
- GOLDMAN SACHS CHARITABLE GIFT FUND EIN 11-3813663 · last filed 990 for 2025
- THE NEW YORK COMMUNITY TRUST EIN 13-3062214 · last filed 990 for 2024
- P E F ISRAEL ENDOWMENT FUNDS INC EIN 13-6104086 · last filed 990 for 2025
All nonprofits in NEW YORK · New York · Philanthropy, voluntarism and grantmaking foundations