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Form 990-PFTax year 2024EIN 81-4466525

Mercury Foundation

A private foundation in Redwood City, CA. Its return for tax year 2024 lists 6 grants and $28 million paid in grants.

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Tax year 2024 (period ending Nov 30, 2025), read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

How to apply

Accepts applications

The return gives an application contact and rules, as below.

Contact
Peter W Grousbeck Trustee
PO Box 29129
Los Angeles, CA 90029
(415) 392-2123
Form and materials
Applications should be submitted electrionically and include proof of irc 501(c)(3) status. Unsolicited grant requests may not receive acknowledgement.
Deadlines
No deadline have been established at this time.
Restrictions
Grants are limited to irc section 501(c)(3) defined purpose and charities.

Assets and giving by year

8 returns on file
Grants paid by tax year. The latest year is in blue.

  • Tax year 2024

    $28,000,000

    Grants listed
    6
    Assets, end of year
    $249,451,224

  • Tax year 2023

    $26,545,000

    Grants listed
    11
    Assets, end of year
    $271,327,366

  • Tax year 2022

    $22,500,000

    Grants listed
    5
    Assets, end of year
    $282,730,493

  • Tax year 2021

    $20,500,000

    Grants listed
    4
    Assets, end of year
    $287,554,216

  • Tax year 2020

    $17,605,000

    Grants listed
    14
    Assets, end of year
    $301,464,913

  • Tax year 2019

    $17,160,000

    Grants listed
    14
    Assets, end of year
    $314,377,054

  • Tax year 2018

    $12,150,000

    Grants listed
    5
    Assets, end of year
    $319,238,470

  • Tax year 2017

    $7,900,000

    Grants listed
    2
    Assets, end of year
    $299,538,610

Grants paid in 2024

6 grants, largest first

As listed on the return.

  1. Rockefeller Philanthropy AdvisorsNew York, NY

    General

    $15,000,000
  2. Planned Parenthood Federation of AmericaNew York, NY

    General

    $3,000,000
  3. PantheraNew York, NY

    General

    $3,000,000
  4. Vanguard Charitable Fund - DafWarwick, RI

    General

    $3,000,000
  5. NRDCNew York, NY

    General

    $2,000,000
  6. Planned Parenthood Los AngelesLos Angeles, CA

    General

    $2,000,000

Where the money goes

By cause: grants to organizations we matched to the IRS list of exempt organizations, by their category.

  1. Philanthropy and grantmaking1 grant $15,000,00065% of the total
  2. Health2 grants $5,000,00022% of the total
  3. Animals1 grant $3,000,00013% of the total

By State

Grants to organizations with a US address, latest year.

  1. New York4 grants $23,000,000
  2. Rhode Island1 grant $3,000,000
  3. California1 grant $2,000,000

Officers, directors and trustees

1 person as filed

As filed on the return, with average hours per week and pay from the foundation.

  • Peter Walker GrousbeckTRUSTEE Hours 0Pay $0

The return

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