Roderick MacArthur Foundation

Private foundation · Grantmaker Niles, IL EIN: 51-0214450

Roderick MacArthur Foundation is a private foundation, based in Niles, IL. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $548K in total assets. In 2024, it awarded 2 grants totaling $5.9M. Net investment income was $13K.

Key facts about Roderick MacArthur Foundation

In short: Roderick MacArthur Foundation gave $5.9M across 2 grants in 2024 (avg $3.0M), mostly in New York. Source: 2024 IRS Form 990-PF.

EIN
51-0214450
Latest 990 filing
Form 990-PF, 2024
Annual giving (2024)
$5,929,111
Grants made (2024)
2
Average grant
$2,964,556
Median grant
$2,964,556
Total assets
$548,407
Primary geography
New York (100% of itemized 2024 grant dollars)

Data from IRS Form 990-PF, 2024; updated September 2026.

Financial Overview

From 2024 IRS Form 990-PF · View filing

Total Assets

$548K

+143.0% YoY

Annual Giving

$5.9M

-2.2% YoY

Grant Count

2

+100.0% YoY

Avg Grant Size

$3.0M

-51.1% YoY

Under IRS private-foundation payout rules, Roderick MacArthur Foundation reported a distributable amount of $16K for 2024 — the minimum it must pay out in qualifying distributions.

How Roderick MacArthur Foundation gives

  • Giving held roughly steady from 2021 to 2024 (+10%). Method
  • In 2024 it paid out well above 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 2024 grant dollars across all 2 itemized grants.

States

Cities

New York

Giving Over Time

Total grant dollars and number of grants per year

$0$2M$4M$6M$8M1 grant2020 2 grants2021 1 grant2022 1 grant2023 2 grants2024

From 2020 to 2024, annual grant giving ranged from $5.3M (2020) to $6.1M (2023). In 2024 it made 2 grants totaling $5.9M.

Grant Insights

How this funder distributes its grants

Top Recipients

Top 2 recipients in 2024

Harper's Magazine Foundation: $5.9MHarper's Magazine Foundation$5.9MColumbia Teachers College: $19KColumbia Teachers College$19K

The largest 2024 recipient was Harper's Magazine Foundation ($5.9M). Together the top 2 received $5.9M.

Grant Size Distribution

7 grants across all recorded years

1<$50K$50–100K1$100–250K$250–500K$500K–1M$1–5M5$5M+

The most common grant size was $5M or more: 5 grants of 7 (71%).

Giving History

Grant recipients and amounts by year

RecipientPurposeAmount
Harper's Magazine Foundation New York, NYTo support the continuing operations of Harper's Magazine$5,910,500
Columbia Teachers College New York, NYSymposium on Educational Neuroscience of Reading$18,611

Financial History

Multi-year comparison from IRS filings

Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$2M$4M$6M$8M2020 2021 2022 2023 2024
Metric202420232022
Total Assets$548,407$225,708$223,103
Revenue$6,258,354$6,073,960$6,053,750
Expenses$6,270,483$6,085,735$6,072,308
Qualifying Distributions$5,953,920$6,085,574$6,072,250
Net Investment Income$12,536$11,196$2,897
Distributable Amount$15,677$13,897$12,212

Data update history

When this profile's IRS filing data changed on Grantable

  1. IRS filings on file for fiscal years 2020–2024

Leadership & Key People

Officers and directors from IRS filings

Roderick MacArthur Foundation is led by John R MacArthur, President, Chairman & Director on every filing since 2020; 1 of 4 officers listed in 2024 is compensated.

Officers on the 2024 filing

  • John R MacArthur

    President, Chairman & Director

    On filings since 2020

    1 hr/week

    No compensation reported

  • David J Bradford

    Director & Secretary

    On filings since 2020

    1 hr/week

    No compensation reported

  • Robert Cordova

    Vice Chairman & Director

    On filings since 2020

    1 hr/week

    No compensation reported

  • Marylou Bane

    Treasurer & Assistant Secretary

    Treasurer & Administrator → Treasurer & Director, 2022

    Treasurer & Director → Treasurer & Assistant Secretary, 2024

    On filings since 2020

    2 hrs/week

    $3K (2020) → $4K (2024)

Former officers (1)
  • Former: Amir Ali (2022–2023) — Secretary

Data from IRS Form 990 filings, 2020–2024. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Compensation Overview

From 2024 IRS filing

Marylou Bane — Treasurer/Asst Secretary: $4KMarylou BaneTreasurer/Asst Secretary$4K

The highest reported compensation on the 2024 filing was $4K, to Marylou Bane (Treasurer/Asst Secretary).

Frequently asked questions about Roderick MacArthur Foundation

How much does Roderick MacArthur Foundation give each year?

Roderick MacArthur Foundation gave $5.9M across 2 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $6.1M across 1 grant.

How large is Roderick MacArthur Foundation?

Roderick MacArthur Foundation reported $548K in total assets on its 2024 IRS Form 990-PF. It paid out $6.0M in qualifying distributions that year, against a required minimum of $16K (roughly 5% of its investment assets).

Where does Roderick MacArthur Foundation operate?

Roderick MacArthur Foundation has awarded grants in New York.

What is Roderick MacArthur Foundation's EIN?

Roderick MacArthur Foundation's EIN (Employer Identification Number) is 51-0214450. IRS Form 990 filing data is available on this page for 2020–2024.

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

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