Mabel I Wilcox Foundation Trust

Private foundation · Grantmaker Honolulu, HI EIN: 99-6002447

Mabel I Wilcox Foundation Trust is a private foundation, based in Honolulu, HI. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $506K in total assets. In 2025, it awarded 7 grants totaling $29K. Net investment income was $72K.

Key facts about Mabel I Wilcox Foundation Trust

In short: Mabel I Wilcox Foundation Trust gave $29K across 7 grants in 2025 (avg $4K), mostly in Hawaii. Source: 2025 IRS Form 990-PF.

EIN
99-6002447
Latest 990 filing
Form 990-PF, 2025
Annual giving (2025)
$29,000
Grants made (2025)
7
Average grant
$4,143
Median grant
$4,500
Total assets
$506,181
Primary geography
Hawaii (100% of itemized 2025 grant dollars)

Data from IRS Form 990-PF, 2025; updated October 2026.

Financial Overview

From 2025 IRS Form 990-PF · View filing

Total Assets

$506K

+8.5% YoY

Annual Giving

$29K

+9.3% YoY

Grant Count

7

+40.0% YoY

Avg Grant Size

$4K

-21.9% YoY

Under IRS private-foundation payout rules, Mabel I Wilcox Foundation Trust reported a distributable amount of $30K for 2025 — the minimum it must pay out in qualifying distributions.

How Mabel I Wilcox Foundation Trust gives

  • Giving held roughly steady from 2022 to 2025 (−15%). Method
  • In 2025 it paid out 107% of its IRS minimum distribution (the 5% rule). Method

From the foundation's IRS Form 990-PF filings. Methodology.

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Geographic Focus

Where this funder awards grants

Grant Distribution by State

1state

Share of 2025 grant dollars across all 7 itemized grants.

States

Cities

LihueWaimeaKalaheoHonoluluWaimea KauaiHanapepe

Giving Over Time

Total grant dollars and number of grants per year

$0$10K$20K$30K$40K5 grants2020 4 grants2021 8 grants2022 4 grants2023 5 grants2024 7 grants2025

From 2020 to 2025, annual grant giving ranged from $17K (2021) to $34K (2022). In 2025 it made 7 grants totaling $29K.

Grant Insights

How this funder distributes its grants

Top Recipients

Top 7 recipients in 2025

Kauai Police Activities League: $6KKauai Police Activities League$6KWaioli Corporation: $5KWaioli Corporation$5KIsland School: $5KIsland School$5KWaimea United Church of Christ: $5KWaimea United Church of Christ$5KKAU Ai Economic Development Board: $4KKAU Ai Economic DevelopmentBoard$4KWaimea Sugar Mill Museum: $3KWaimea Sugar Mill Museum$3KHawaii Children's Theatre: $2KHawaii Children's Theatre$2K

The largest 2025 recipient was Kauai Police Activities League ($6K). Together the top 7 received $29K.

Grant Size Distribution

28 grants across all recorded years

28<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 28 grants of 28 (100%).

Giving History

Grant recipients and amounts by year

RecipientPurposeAmount
Kauai Police Activities League Lihue, HIProgram Support$5,500
Waioli Corporation Lihue, HIGeneral Charitable Purposes$5,000
Island School Lihue, HIGeneral Charitable Purposes$5,000
Waimea United Church of Christ Waimea Kauai, HIGeneral Purposes$4,500
KAU Ai Economic Development Board Lihue, HIProgram Support$4,000
Waimea Sugar Mill Museum Waimea, HIGeneral Charitable Purposes$3,000
Hawaii Children's Theatre Lihue, HIGeneral Charitable Purposes$2,000

Financial History

Multi-year comparison from IRS filings

Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$25K$50K$75K$100K2020 2021 2022 2023 2024 2025
Metric202520242023
Total Assets$506,181$466,600$481,478
Revenue$76,823$18,625$26,260
Expenses$36,063$33,585$31,556
Qualifying Distributions$31,895$29,361$27,475
Net Investment Income$72,351$14,246$22,644
Distributable Amount$29,859$29,137$26,342

Data update history

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2024 (received by the IRS May 8, 2025)
  2. Updated Form 990-PF for fiscal year 2025 (received by the IRS May 12, 2026)
  3. Updated Form 990-PF for fiscal year 2021 (received by the IRS May 5, 2022)
  4. Updated Form 990-PF for fiscal year 2022 (received by the IRS May 8, 2023)
  5. Updated Form 990-PF for fiscal year 2020 (received by the IRS April 26, 2021)
  6. Updated Form 990-PF for fiscal year 2023 (received by the IRS May 6, 2024)

Leadership & Key People

Officers and directors from IRS filings

Mabel I Wilcox Foundation Trust's only listed officer is First Hawaiian Bank, Trustee on every filing since 2020 (compensated).

Officers on the 2025 filing

  • First Hawaiian Bank

    Trustee

    On filings since 2020

    4 hrs/week

    $3K (2020) → $5K (2025)

Data from IRS Form 990 filings, 2020–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Compensation Overview

From 2025 IRS filing

First Hawaiian Bank — Trustee: $5KFirst Hawaiian BankTrustee$5K

The highest reported compensation on the 2025 filing was $5K, to First Hawaiian Bank (Trustee).

Frequently asked questions about Mabel I Wilcox Foundation Trust

How much does Mabel I Wilcox Foundation Trust give each year?

Mabel I Wilcox Foundation Trust gave $29K across 7 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $27K across 5 grants.

What is Mabel I Wilcox Foundation Trust's typical grant size?

Mabel I Wilcox Foundation Trust's median grant in 2025 was $4,500, and its average grant was $4,143, across 7 grants on its 2025 IRS Form 990-PF.

Where does Mabel I Wilcox Foundation Trust give grants?

Mabel I Wilcox Foundation Trust gives mostly in Hawaii: 100% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The most frequent recipient cities were Lihue, HI (5 grants).

Does Mabel I Wilcox Foundation Trust give general operating support?

Yes: 71% of Mabel I Wilcox Foundation Trust's 2025 grants with a stated purpose (5 of 7) were for general or operating support, per its 2025 IRS Form 990-PF.

Who are Mabel I Wilcox Foundation Trust's largest grantees?

Mabel I Wilcox Foundation Trust's largest 2025 grantees include Kauai Police Activities League ($5,500), Waioli Corporation ($5,000) and Island School ($5,000), according to its 2025 IRS Form 990-PF. Together they received 53% of its itemized 2025 grant dollars.

How large is Mabel I Wilcox Foundation Trust?

Mabel I Wilcox Foundation Trust reported $506K in total assets on its 2025 IRS Form 990-PF. It paid out $32K in qualifying distributions that year, against a required minimum of $30K (roughly 5% of its investment assets).

What is Mabel I Wilcox Foundation Trust's EIN?

Mabel I Wilcox Foundation Trust's EIN (Employer Identification Number) is 99-6002447. IRS Form 990 filing data is available on this page for 2020–2025.

Data last updated October 2026. Sourced from IRS Form 990-PF filings.

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