# Mabel Pew Myrin Trust

Mabel Pew Myrin Trust is an Endowment / Foundation based in Philadelphia, United States.

## Overview

- **Organization type:** Endowment / Foundation
- **Headquarters:** Philadelphia, United States
- **Region:** North America
- **Address:** One Commerce Square, 2005 Market Street Suite 2800, Philadelphia, PA, United States
- **Founded:** 1948
- **Assets under management:** 7242 (Altss estimate)
- **Website:** www.pewtrusts.org

## Regulatory record

- **Reports private funds:** No

## About

The trust was created in 1948 by Mabel Pew Myrin, daughter of Sun Oil founder Joseph Newton Pew. It forms part of the original Pew Memorial Foundation alongside three sibling trusts. Investment activity spans venture capital, private equity, distressed debt, secondaries and natural resources. Confirmed positions include limited partnership interests in Alloy Ventures 2002 LP and APA Excelsior IV L.P. Additional exposure exists through Quellos Real Assets L.P. and historical ownership in Sunoco. Geographic reach centers on the United States with program work extending globally. The organization employs 969 people and operates from Philadelphia. It maintains a beneficial interest valued at approximately $508 million in The Pew Charitable Trusts. February 2024 events included sponsorship of the 75th Anniversary Speaker Series in Washington, D.C. and the Witness to Revolution exhibition opening in Philadelphia. Governance remains tied to the original family trusts and their ongoing support of the consolidated public charity. Investment decisions flow through Glenmede Trust Company as advisor since 1957.

## Sectors

- Public Policy
- Philanthropy

## Questions

### Who runs investment decisions at Mabel Pew Myrin Trust?

The Glenmede Trust Company has served as investment advisor since 1957. Day-to-day allocation occurs within the broader Pew Charitable Trusts structure.

### Does Mabel Pew Myrin Trust participate in fund commitments or only direct deals?

The trust holds limited partnership interests in venture and private equity vehicles including Alloy Ventures 2002 LP and APA Excelsior IV L.P.

### How is Mabel Pew Myrin Trust related to The Pew Charitable Trusts?

It is one of seven individual trusts that provide substantial ongoing support to the consolidated Pew Charitable Trusts public charity.

### What asset classes appear in the trust portfolio?

Holdings include venture capital funds, private equity funds, real estate through Quellos Real Assets L.P., land at Kimberton Farms, and art collections.

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- [Jacobs Foundation](https://altss.com/profile/jacobs-foundation)
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Last updated: 2026-08-10T15:58:45.833Z

Canonical page: https://altss.com/profile/mabel-pew-myrin-trust

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