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Form 990-PFTax year 2024EIN 20-6582607

United Plankton Charitable Trust

A private foundation in Los Angeles, CA. Its return for tax year 2024 lists 17 grants and $3.4 million paid in grants.

Tax year 2024 (period ending Dec 31, 2024), 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

Preselected only

The return checks the box saying the foundation gives only to preselected organizations and does not accept unsolicited requests.

Assets and giving by year

7 returns on file
Grants paid by tax year. The latest year is in blue.
  • Tax year 2024

    $3,352,000

    Grants listed
    17
    Assets, end of year
    $8,349,298
  • Tax year 2023

    $958,400

    Grants listed
    16
    Assets, end of year
    $8,811,019
  • Tax year 2022

    $837,500

    Grants listed
    16
    Assets, end of year
    $5,838,623
  • Tax year 2021

    $645,000

    Grants listed
    14
    Assets, end of year
    $8,033,137
  • Tax year 2020

    $778,000

    Grants listed
    18
    Assets, end of year
    $7,861,937
  • Tax year 2019

    $978,519

    Grants listed
    23
    Assets, end of year
    $7,636,507
  • Tax year 2018

    $749,220

    Grants listed
    35
    Assets, end of year
    $7,405,485

Grants paid in 2024

17 grants, largest first

As listed on the return.

  1. California Institute of the ArtsValencia, CA

    To further organization's charitable purpose.to further organization's charitable purpose.to further organization's charitable purpose.

    $1,000,000
  2. Hammer Museum Los AngelesLos Angeles, CA

    To further organization's charitable purpose.

    $615,000
  3. Cal Poly Humboldt FoundationArcata, CA

    To further organization's charitable purpose.

    $345,000
  4. The Museum of Contemporary ArtLos Angeles, CA

    To further organization's charitable purpose.

    $315,000
  5. Institute of Contemporary ArtLos Angeles, CA

    To further organization's charitable purpose.

    $250,000
  6. Performance Art MuseumLos Angeles, CA

    To further organization's charitable purpose.

    $200,000
  7. Los Angeles Philharmonic AssociationLos Angeles, CA

    To further organization's charitable purpose.

    $150,000
  8. Pasadena Conservatory of MusicPasadena, CA

    To further organization's charitable purpose.to further organization's charitable purpose.

    $120,000
  9. Heart of the BrainLos Angeles, CA

    To further organization's charitable purpose.

    $100,000
  10. Planned Parenthood Federation of America IncNew York, NY

    To further organization's charitable purpose.

    $100,000
  11. LaceLos Angeles, CA

    To further organization's charitable purpose.

    $50,000
  12. The Museum of Modern ArtNew York, NY

    To further organization's charitable purpose.

    $45,000
  13. LaxartLos Angeles, CA

    To further organization's charitable purpose.

    $25,000
  14. Polytechnic SchoolPasadena, CA

    To further organization's charitable purpose.

    $25,000
  15. American Friends of the National GalleryBerlin, Germany

    To further organization's charitable purpose.

    $5,000
  16. Lcyc Community Sailing FoundationIslesford, ME

    To further organization's charitable purpose.

    $5,000
  17. The Nasher Sculpture CenterDallas, TX

    To further organization's charitable purpose.

    $2,000

Where the money goes

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

  1. Arts and culture8 grants $1,857,00080% of the total
  2. Education2 grants $370,00016% of the total
  3. Health1 grant $100,0004% of the total

By State

Grants to organizations with a US address, latest year.

  1. California12 grants $3,195,000
  2. New York2 grants $145,000
  3. Maine1 grant $5,000
  4. Texas1 grant $2,000

Officers, directors and trustees

1 person as filed

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

  • Karen HillenburgTRUSTEE Hours 1Pay $0

The return

More foundations

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Same main cause (arts and culture), giving between a quarter and four times this foundation’s where possible, nearby first.

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  2. Rosenthal Family FoundationLos Angeles, CA 55 grants Preselected only $2,999,598 giving
  3. Mortimer and Mimi Levitt Foundation IncLos Angeles, CA 91 grants Accepts applications $2,964,300 giving
  4. Lloyd E Rigler Lawrence E Deutsch FoundationLos Angeles, CA 11 grants Preselected only $2,661,000 giving
  5. The Meredith and Rosemary Willson Charit (aka the Music Man Foundation)Los Angeles, CA 41 grants Accepts applications $4,238,030 giving