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Form 990-PFTax year 2025EIN 88-4346172

Addison Labs Foundation

A private foundation in San Francisco, CA. Its return for tax year 2025 lists 0 grants.

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Tax year 2025 (period ending Dec 31, 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

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

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

  • Tax year 2025

    $0

    Grants listed
    0
    Assets, end of year
    $28,625,542

  • Tax year 2024

    $0

    Grants listed
    0
    Assets, end of year
    $8,269,436

  • Tax year 2023

    $0

    Grants listed
    0
    Assets, end of year
    $437,241

  • Tax year 2022

    $0

    Grants listed
    0
    Assets, end of year
    $0

Grants paid in 2025

0 grants, largest first

As listed on the return.

Officers, directors and trustees

7 people as filed

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

  • Barbara Bass BakarDIRECTOR/PRESIDENT Hours 1Pay $0
  • Ben HermalinDIRECTOR Hours 1Pay $0
  • Jennifer ChayesDIRECTOR Hours 1Pay $0
  • Kathleen A McCormickDIRECTOR/TREASURER Hours 1Pay $0
  • Richard L GreeneDIRECTOR Hours 1Pay $0
  • Sharon HasegawaSECRETARY Hours 1Pay $0
  • Dave SchafferDIRECTOR Hours 1Pay $0

The return

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