# Seabridge Investment Advisors

Seabridge Investment Advisors is a Multi Family Office based in Summit, United States.

## Overview

- **Organization type:** Multi Family Office
- **Headquarters:** Summit, United States
- **Region:** North America
- **Address:** New York, NY, United States
- **Founded:** 1999
- **Assets under management:** Less than $500M (Altss estimate)
- **Website:** seabridgeinvestments.com
- **LinkedIn:** https://www.linkedin.com/company/seabridge-investment-advisors

## Regulatory record

- **CRD number:** 108681
- **SEC file number:** 801-55009
- **Registration status:** Registered
- **Latest Form ADV filing:** 2026-04-13T00:00:00.000Z
- **Reports private funds:** No
- **Private funds reported:** 0
- **IAPD record:** https://adviserinfo.sec.gov/firm/summary/108681

## About

SEABRIDGE INVESTMENT ADVISORS LLC is an SEC-registered investment adviser in SUMMIT, NJ, since 1997. The firm manages approximately $771 million in assets. It has 12 employees and 11 investment advisers.

## Sectors

- Hedge Funds
- Private Credit
- Real Estate
- Private Equity
- Secondaries & Special Situations

## People

- Margaret A. McGrath — Founder & Managing Partner

## Questions

### Who runs investment decisions at Seabridge?

Margaret McGrath, the founder and managing partner, leads investment decisions. She built the firm in 1999 after prior institutional portfolio management experience and is directly involved in manager selection and portfolio construction.

### What investment stages or strategies does Seabridge explicitly avoid?

As a concentrated hedge fund allocator, Seabridge generally avoids broad retail-oriented long-only equity and fixed-income products that can be accessed passively. The firm does not position itself as a venture capital allocator and has not publicly signaled involvement in direct early-stage technology investing.

### Where does the underlying client wealth come from?

Specific wealth origins of Seabridge's client base are not publicly disclosed. The firm serves multiple families and foundations rather than being the dedicated investment office for a single named fortune.

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- [SDRengine](https://altss.com/profile/sdrengine)
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Last updated: 2026-07-06T01:24:25.220Z

Canonical page: https://altss.com/profile/seabridge-investment-advisors-llc

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