Allocator CareersUpdated Jul 7, 2026
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Foundation2

John D. and Catherine T. MacArthur Foundation

Private foundation endowment2 — Chicago, IL2.

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John D. and Catherine T. MacArthur Foundation

Manager Alpha Analytics and Portfolio Risk

Partners with Deputy CIO on portfolio construction, risk-aware decision making, and alpha analytics.

Chicago, IL · Mid-level

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Verified Jul 4, 2026

Overview

The MacArthur Foundation is a private foundation known for the MacArthur Fellows Program and grantmaking in climate, justice, and civic life.1

The endowment supports MacArthur Foundation grantmaking and impact investments.1

Investment program

Estimated AUM
$8.7B as of Dec 31, 20243
Capital pool
Private foundation endowment2
Investment model
Federal law requires each to distribute at least 5 percent of net investment assets annually for charitable purposes, which means the investment office needs to clear distributions, inflation, and management costs every year just to keep the endowment flat.4
Investment approach
Many of these investment offices run 10 to 30 professionals managing diversified multi-asset portfolios in-house.4
Spending support
Not listed yet
Spending policy
Not listed yet
Asset allocation
Third-party directory states portfolio was approximately 35% private assets.5
Performance
Not listed yet
Governance
The fund's scale rivals the largest university endowments, but its governance structure and religious institutional mandate set it apart from traditional foundation investors.4
Investment team
Federal law requires each to distribute at least 5 percent of net investment assets annually for charitable purposes, which means the investment office needs to clear distributions, inflation, and management costs every year just to keep the endowment flat.4
Unfunded commitments
Not listed yet
Source freshness
Last verified Jul 7, 2026 · Verified

Sources

Last verified Jul 7, 2026 from public career and organization materials.

Fact notes

  1. Website (macfound.org)Parent organization overview, Pool purpose, Investment office page · checked Jul 3, 2026
  2. Website (macfound.org)Institution type, Capital pool, Headquarters · checked Jul 3, 2026
  3. Form 990 (projects.propublica.org)Estimated AUM · checked Sep 1, 2026
  4. Website (praxisrock.com)Investment model, Investment approach, Governance, Investment team · checked Jul 4, 2026
  5. Other source (macfound.org)Asset allocation · checked Jul 3, 2026

Reports and filings

Profile and job sources