Open Foundations · Arizona

Ruth Tankersley Charitable Tr

Tucson, Arizona · EIN 866224242. Its Form 990-PF says giving is not restricted to organizations picked in advance, which is how a private foundation files that it accepts unsolicited requests. It paid $4.7M across 43 grants in 2025, a median of $50K each.

All Arizona foundations · All states

$4.7M
paid in 2025
43
grants paid
$50K
median grant
4%
to first-time recipients
$28.1M
assets on file

How to apply, as filed

Straight off Part XV of the return. Where the foundation left a line blank, this says so rather than guessing.

Send requests to
KATHY GOOD
Address
3430 E Sunrise Dr, Tucson, AZ, 85718
Phone
5207921181
Form the request should take
Proof of 501 (C) 3
Submission deadline
None
Restrictions on awards
Trust does not accept unsolicited grant requests

As filed on the Form 990-PF for tax year 2025, IRS filing object id 202601319349104615. Printed word for word, including the entries that only say to see a website or an attachment.

What it funds, in its own words

The words that come up most often across the purposes it wrote on its 2025 grants. These are the foundation's own words, not a category we assigned.

expsupeducarts

Biggest grants in 2025

The 15 largest of the 43 grants paid in 2025, with the purpose the foundation wrote for each.

#RecipientStateAmountPurpose as filed
1Michaels FoundationFL$950,000Grant for Veteran Well-Being Endowment Fund
2Woodwell Climate Research CntrMA$700,000Grant support general operating exp research
3World Resources InstituteDC$700,000Grant for general operating Exp
4Michaels FoundationFL$200,000Grant for Fundraising programs
5Community Fnd of Southern AzAZ$150,000Grant Miller Luke Jakobsen Donor Advised Fund
6St Matthews Episcopal Church ChandAZ$150,000Grant for ministry programs and interfaith miss
7The Gregory SchoolAZ$150,000Grant to sup budget fin aid programs tutoring
8Nature ForwardMD$115,000Grant support general Operating Exp
9Elusen IncFL$104,000Grant support Graphic Design prntg Ser
10Michaels FoundationFL$100,000Grant for fundraising programs
11Community Fnd for Southern AzAZ$96,000Grant money earmarked for the HM and LJ donor Fund
12Michaels FoundationFL$86,000Grant for support for Veterans
13Flandrau Science Center PlanetariumAZ$85,000Grant in Sup Marine Disc Exh k-12 Educ Prog
14St Michaels Parish Day SchoolAZ$85,000Grant support Fac and Bldg improvements
15The Gregory SchoolAZ$85,000Grant for interm Head of School

Giving by year, and who received it

Grants paid by year

Every year of this foundation's grants that Civly holds
Tax yearGrantsPaid
202077$4.1M
202153$4.1M
202260$4.6M
202348$4.7M
202443$4.7M
2025 (partial year)43$4.7M

Where the money went

Share of 2025 grant dollars by recipient state
Arizona37%
Florida21%
Maryland12%
District of Columbia9%
North Carolina7%

Who decides

Officers, directors and trustees as filed, with the year of the return they appeared on.

John HelenboltTrustee · 2025
Kristie MillerTrustee · 2025
Margot RubinTrustee · 2025
Mark MillerTrustee · 2025
Michael HalleTrustee · 2025

Every figure on this page is that foundation's own latest filed year, which is 2022 or later. This foundation is listed because its Form 990-PF says it does not restrict giving to preselected organizations and it paid at least 5 grants totaling $100K or more that year. Latest-year grants and terms per foundation from IRS 990-PF e-file returns; the newest tax year is partial until the IRS finishes releasing it. Grants are de-duplicated on funder, year, recipient and amount, so identical repeat grants collapse into one and totals can run low. Full method.

Source: IRS Form 990-PF e-file releases (public domain). Analysis: Civly.

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