# Stillwater Family Office

Stillwater Family Office 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:** New York, NY, United States
- **Founded:** 2003
- **Assets under management:** Undisclosed
- **Website:** stillwatersfo.com

## Regulatory record

- **Reports private funds:** No

## About

Stillwater Family Office was established in 2003 by Mortimer D.A. Sackler. It functions as the dedicated vehicle for the Sackler family, whose fortune stems from Purdue Pharma holdings. The office allocates across public equities, private company stakes and real estate. Confirmed positions include Mundipharma and the Peak Resorts portfolio sold to Vail Resorts in 2019. Geographic exposure centers on the United States and the United Kingdom, with additional holdings such as properties at 654 and 655 Madison Avenue in New York. Brian Olson serves as President and CIO of Kokino LLC, a related vehicle. Robert Averick acts as portfolio manager at Kokino and director at Amtech Systems. The firm also maintains philanthropic entities including the Raymond and Beverly Sackler Foundation and The Sackler Trust.

## Sectors

- Real Estate
- Private Markets

## People

- Mortimer D.A. Sackler — Founder
- David Sackler — Family Member
- Brian Olson — President and CIO of Kokino LLC
- Robert Averick — Portfolio Manager at Kokino LLC

## Questions

### Who runs investment decisions at Stillwater Family Office?

Brian Olson serves as President and CIO of Kokino LLC, the primary investment vehicle. Robert Averick acts as portfolio manager at Kokino.

### How is Stillwater Family Office related to Kokino LLC?

Kokino LLC operates as the investment arm under the same principals, with Brian Olson and Robert Averick listed in operational roles.

### What asset classes does Stillwater Family Office deploy into?

Allocations span public equities, private company stakes and real estate holdings in the United States and United Kingdom.

### Does Stillwater Family Office maintain philanthropic structures?

Yes. The office oversees the Raymond and Beverly Sackler Foundation and The Sackler Trust as separate entities.

## Related profiles

- [St. George's Group Limited Family Office](https://altss.com/profile/st-george-s-group-limited-family-office)
- [Stockdale Street](https://altss.com/profile/stockdale-street)

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Last updated: 2026-08-10T15:54:10.904Z

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