Nonprofit · EIN 81-4466525
MERCURY FOUNDATION
Tax-exempt · REDWOOD CITY, CA 94065
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| November 30, 2025 | 990-PF | $15,081,915 | $32,444,756 | -$17,362,841 | $249,451,224 | $0 | $249,451,224 |
| November 30, 2024 | 990-PF | $18,735,299 | $30,485,075 | -$11,749,776 | $271,327,366 | $0 | $271,327,366 |
| November 30, 2023 | 990-PF | $20,089,171 | $25,264,474 | -$5,175,303 | $282,730,493 | $0 | $282,730,493 |
Financial details: 990-PF for the year ended November 30, 2025
Revenue
- Contributions, gifts and grants
- $0
- Dividends
- $6,760,339
- Interest
- $2,055,593
- Net gain from sales of assets
- $6,075,608
- Other income
- $190,375
Expenses
- Grants and similar amounts paid
- $28,000,000
- Compensation of officers, directors and key employees
- $0
- Disbursements for charitable purposes
- $28,085,648
- Excise tax on investment income
- $154,611
Balance sheet and other
- Total assets, start of year
- $271,327,366
- Total assets, end of year
- $249,451,224
- Total liabilities, end of year
- $0
- Net assets, end of year
- $249,451,224
- Fair market value of assets
- $362,859,286
- Qualifying distributions
- $28,085,648
- Net investment income
- $14,700,660
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 November 30, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| PETER WALKER GROUSBECK C/O BAKER TILLY 3 LAGOON DRIVE, REDWOOD CITY, CA 94065 | TRUSTEE | 0 | $0 |
990-PF for the year ended November 30, 2024: 1 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| PETER WALKER GROUSBECK PO BOX 29129, LOS ANGELES, CA 90029 | TRUSTEE | 0 | $0 |
990-PF for the year ended November 30, 2023: 1 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| PETER WALKER GROUSBECK PO BOX 29129, LOS ANGELES, CA 90029 | TRUSTEE | 0 | $0 |
Address and contacts
- Address (IRS master file)
- C/O BAKER TILLY 3 LAGOON DR ST 400, REDWOOD CITY, CA 94065-0000
- In care of
- % BAKER TILLY ADVISORY GROUP
- Signed the 990-PF
- PETER GROUSBECK, TRUSTEE
- Phone
- (650) 365-4646
- Return prepared by
- Baker Tilly Advisory Group LP
California records
California keeps its own records of charities and corporations. Search them by EIN 81-4466525 or by the name MERCURY FOUNDATION.
- 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 November, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2024 | November 30, 2025 | April 15, 2026 | 990-PF on file |
| 2023 | November 30, 2024 | April 15, 2025 | 990-PF on file |
| 2022 | November 30, 2023 | April 15, 2024 | 990-PF on file |
IRS record
- EIN
- 81-4466525
- 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
- 2017
- Accounting year ends
- November
- Files
- Form 990-PF
- Category (NTEE)
- Philanthropy, voluntarism and grantmaking foundations (T22)
- Assets (IRS master file)
- $249,451,224
- Income (IRS master file)
- $30,696,562
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | November 2025 | $15,081,915 | $32,444,756 | $249,451,224 | XML |
| 990-T | November 2025 | – | – | – | IRS |
| 990-PF | November 2024 | $18,735,299 | $30,485,075 | $271,327,366 | XML |
| 990-T | November 2024 | – | – | – | IRS |
| 990-PF | November 2023 | $20,089,171 | $25,264,474 | $282,730,493 | XML |
| 990-T | November 2023 | – | – | – | IRS |
| 990-PF | November 2022 | – | – | – | IRS |
| 990-T | November 2022 | – | – | – | IRS |
| 990-PF | November 2021 | – | – | – | IRS |
| 990-T | November 2021 | – | – | – | IRS |
| 990-PF | November 2020 | – | – | – | IRS |
| 990-PF | November 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 81-4466525).
Questions about MERCURY FOUNDATION
- What is the EIN of MERCURY FOUNDATION?
- The employer identification number (EIN) of MERCURY FOUNDATION is 81-4466525.
- Is MERCURY FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2017.
- Are donations to MERCURY FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does MERCURY FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of MERCURY FOUNDATION due?
- The return for tax year 2025 (the year ending November 30, 2026) is due April 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did MERCURY FOUNDATION last file with the IRS?
- The latest return in the IRS public files is the 990-PF for the year ended November 2025.
- Who are the officers and directors of MERCURY FOUNDATION?
- The 990-PF for the year ended November 30, 2025 lists 1 person; 0 received compensation from the organization.
- How much revenue does MERCURY FOUNDATION have?
- On its 990-PF for the year ended November 30, 2025 it reported revenue of $15,081,915, expenses of $32,444,756 and total assets of $249,451,224 at year end.
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All nonprofits in REDWOOD CITY · California · Philanthropy, voluntarism and grantmaking foundations