Percival Lowell Trust Uw

Public charity · Grantmaker Flagstaff, AZ EIN: 04-2007327

A trust established for the benefit of lowell observatory.

Percival Lowell Trust Uw at a glance

In short: Percival Lowell Trust Uw gave $298K across 1 grant in 2025 (avg $298K), mostly in Arizona. Source: 2025 IRS Form 990.

Annual giving (2025)
$298,235
+5.7% vs 2024
Grants made (2025)
1
+0.0% vs 2024
Average grant
$298,235
+5.7% vs 2024
Median grant
$298,235
Total assets
$42,971,074
+2.9% vs 2024
Primary geography
Arizona (100% of itemized 2025 grant dollars)
Latest 990 filing
Form 990, 2025 View filing

Data from IRS Form 990, 2025; updated September 2026.

Who Percival Lowell Trust Uw funds

How this funder distributes its grants

Top Recipients

Top recipient in 2025

Lowell Observatory: $298KLowell Observatory$298K

The largest 2025 recipient was Lowell Observatory ($298K).

Grant Size Distribution

3 grants across all recorded years

<$50K$50–100K1$100–250K2$250–500K$500K–1M$1–5M$5M+

The most common grant size was in the $250–500K range: 2 grants of 3 (67%).

Geographic Focus

Where this funder awards grants

Grant Distribution by State

1state

Share of the 2025 grant dollars on its one itemized grant.

States

Cities

Flagstaff

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$100K$200K$300K0 grants2019 0 grants2020 0 grants2021 0 grants2022 1 grant2023 1 grant2024 1 grant2025

From 2023 to 2025, annual grant giving ranged from $167K (2023) to $298K (2025). In 2025 it made 1 grant totaling $298K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
Lowell Observatory Flagstaff, AZOperational Support$298,235
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Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsNet Investment Income
2025$42,971,074$3,644,267$759,148$298,2351$3,644,076
2024$41,767,382$2,773,064$812,414$282,1841$2,771,923
2023$37,590,223$766,352$449,999$166,6381$587,585
2022$32,234,175$963,326$93,730——$542,530
2021$33,671,520$5,617,015$72,074——$2,116,982
2020$27,582,910$549,975$74,348——$549,736
2019$25,084,617$2,439,361$80,102——$1,794,478

About Percival Lowell Trust Uw

Based on IRS filings

Percival Lowell Trust Uw is a public charity focused on Environment & Animals, based in Flagstaff, AZ. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $43.0M in total assets. In 2025, it awarded 1 grant totaling $298K. Net investment income was $3.6M.

Leadership & Key People

Officers and directors from IRS filings

Percival Lowell Trust Uw's 2025 filing lists 2 officers; none of the 2 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • W. Lowell Putnam

    Trustee

    On filings since 2019

    2 hrs/week

    No compensation reported

  • Anne Labruzzo

    Chief Financial Officer

    Deputy Director for Administration → Chief Financial Officer, 2025

    On filings since 2019

    2 hrs/week

    No compensation reported

Former officers (2)
  • Former: Labruzzo Anne (2020–2024) — Chief Financial Officer
  • Former: Putnam W. Lowell (2020–2024) — Trustee

Data from IRS Form 990 filings, 2019–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Frequently asked questions about Percival Lowell Trust Uw

How much does Percival Lowell Trust Uw give each year?

Percival Lowell Trust Uw gave $298K across 1 grant in 2025, according to its 2025 IRS Form 990. In 2024 it gave $282K across 1 grant.

How large is Percival Lowell Trust Uw?

Percival Lowell Trust Uw reported $43.0M in total assets on its 2025 IRS Form 990. Its revenue that year was $3.6M.

What is Percival Lowell Trust Uw?

Percival Lowell Trust Uw is a public charity focused on Environment & Animals, based in Flagstaff, AZ. It holds $43.0M in total assets as of 2025.

Where does Percival Lowell Trust Uw operate?

Percival Lowell Trust Uw has awarded grants in Arizona.

What is Percival Lowell Trust Uw's EIN?

Percival Lowell Trust Uw's EIN (Employer Identification Number) is 04-2007327. IRS Form 990 filing data is available on this page for 2019–2025.

Data last updated September 2026. Sourced from IRS Form 990 filings.

Data update history

(4)

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990 for fiscal year 2023 (received by the IRS August 20, 2024)
  2. Updated Form 990 for fiscal year 2024 (received by the IRS August 21, 2025)
  3. Added Form 990 for fiscal year 2025 (received by the IRS July 23, 2026)
  4. Added Form 990 for fiscal year 2019 (received by the IRS June 26, 2020)

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The filing figures on this page are open data under CC BY 4.0. About GrantGraph Open

Figures come from Percival Lowell Trust Uw's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.

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