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Form 990-PFTax year 2025EIN 04-6197960

William H Harris Foundation

A private foundation in Lexington, MA. 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. It still lists the details below.

Contact
See Note Below
1010 Waltham Street 8 Fairfield
Lexington, MASSACHUSETTS 02421
(781) 848-3187
[email protected]
Form and materials
See note below
Deadlines
None
Restrictions
The foundation generally makes contributions in support of education, conservation and medical research, chosen by the trustees preselected charitable organizations.

Assets and giving by year

6 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
    $773,200

  • Tax year 2024

    $3,550,000

    Grants listed
    2
    Assets, end of year
    $395,034

  • Tax year 2023

    $0

    Grants listed
    0
    Assets, end of year
    $3,898,271

  • Tax year 2022

    $1,175,000

    Grants listed
    3
    Assets, end of year
    $3,782,480

  • Tax year 2021

    $200,005

    Grants listed
    2
    Assets, end of year
    $5,141,503

  • Tax year 2020

    $720,000

    Grants listed
    3
    Assets, end of year
    $5,485,577

Grants paid in 2025

0 grants, largest first

As listed on the return.

Officers, directors and trustees

2 people as filed

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

  • William H Harris MDTRUSTEE Hours 1Pay $0
  • David HarrisTRUSTEE Hours 1Pay $0

The return

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