# MacArthur Holdings

MacArthur Holdings is a Single Family Office based in New York, United States.

## Overview

- **Organization type:** Single Family Office
- **Headquarters:** New York, United States
- **Region:** North America
- **Address:** 2130 Broadway, New York, NY 10023
- **Assets under management:** Undisclosed
- **Website:** macarthurholdings.com

## Regulatory record

- **Reports private funds:** No

## About

MacArthur Holdings is a fourth-generation, family-run real estate business based in New York City. With 70 years of experience building, owning, and operating property in the world’s foremost real estate market, we believe in the long term viability of the Real Estate market.

## Sectors

- Real Estate

## People

- David Katz — Principal
- Howard Katz — Principal
- Philip Katz — Principal
- Andrew Katz — Partner
- Gabriel Katz — Partner
- Jeremy Katz — Partner
- Robert Loffredo — Chief Financial Officer, Partner
- Robert Doster — Partner

## Questions

### Who runs investment decisions at MacArthur Fund?

Day-to-day investment and operational decisions are made by the three principals — David Katz, Howard Katz, and Philip Katz — alongside partners Andrew Katz, Gabriel Katz, Jeremy Katz, Robert Loffredo, and Robert Doster, per the firm's own website. No external investment committee or non-family CIO is disclosed.

### Is MacArthur Fund structured as a single family office or does it operate more like a real estate developer?

MacArthur operates as a single-family office but functions in practice like an integrated owner-operator-developer. It acquires land, pursues entitlements and rezoning, self-performs or oversees ground-up construction, and retains long-term ownership of operating assets — with no indication of third-party capital or fund vehicles on its website.

### Does MacArthur Fund participate in fund commitments or only direct deals?

The firm's entire known portfolio consists of directly owned real estate — commercial, residential, hotel, self-storage, and development sites — with no publicly disclosed fund commitments or LP positions in external real estate funds.

### What geographies does MacArthur Fund operate in?

MacArthur's portfolio is concentrated in New York City (Manhattan, Brooklyn, the Bronx) and the Northeast (New Hampshire, Pennsylvania), with a secondary Sun Belt footprint in Florida, Georgia, and South Carolina. The New Hampshire holdings include multiple build-to-suit office and industrial projects in Portsmouth.

### Does MacArthur Fund maintain philanthropic structures, and how are they separated?

The firm's website does not reference any separate philanthropic foundation, donor-advised fund, or family charitable vehicle. If one exists, its structure and separation from the real estate operations are not publicly disclosed.

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Last updated: 2026-07-09T00:34:07.442Z

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