STONEBROOK INVESTMENT, LLC

RIASEC Registered
Total AUM
$38.1M
Discretionary
$38.1M
100% of AUM
Avg account
$470K
Accounts
81
Employees
1
Advisory reps
1

Firm details

Headquarters
ASHBURN, Virginia
CRD number
168359
Custodians
CHARLES SCHWAB & CO., INC.
Fee structure
Percentage of AUM
Client types
  • HNWI91.01%
  • Individuals8.99%
Services
Portfolio Management for Individuals

Firm profile

FINTRX

Overview

Stonebrook Investment, LLC is a small, discretionary wealth manager focused on portfolio management for individuals and small businesses. The firm manages a concentrated book of clients and runs a fee model based on a percentage of assets under management. Its investment profile tilts toward equities as the primary allocation preference and it supplements public-market exposures with mutual funds and allocations to third‑party real estate strategies. Stonebrook does not identify as an active ESG investor and operates without multi‑state adviser designation. The firm’s client base and account mix suggest a boutique advisory practice that favors personalized relationships: with 32 clients across 81 accounts, Stonebrook appears set up to deliver bespoke portfolio management services rather than mass-market product distribution. Custody is centralized at Charles Schwab, which simplifies reporting and trading execution for the adviser’s strategies.

Assets & Accounts

Public Holdings

Investments & Alternatives

Location & Offices

Investment profile

FINTRX

Traditional investments used

Alternative investments used

Active ESG investor

Technology & operations

FINTRX

CRM & tech providers

TAMPs used

Clients

FINTRX

Client base

Client personas

Asset composition

Asset composition: Exchange Traded Equities 36%, Public Funds/Mutual Funds 24%, US Government Bonds 19%, Cash & Cash Equivalents 8%, Investment Grade Corp Bonds 7%, State & Local Bonds 6%36%
  • Exchange Traded Equities36%
  • Public Funds/Mutual Funds24%
  • US Government Bonds19%
  • Cash & Cash Equivalents8%
  • Investment Grade Corp Bonds7%

Contacts

1 of 1
  • MARK BURKHARDT

    Portfolio ManagerCRD 2027111

Wealth teams

FINTRX

Newly hired reps

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Recent M&A activity

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Recent filings

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Awards

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Location

Primary office

ASHBURN, VA

LOUDOUN

Location

ASHBURN, VA

Headquartered in ASHBURN, VA, anchoring the Washington-Baltimore-Arlington, DC-MD-VA-WV-PA metro in the South.

Metro area
Washington-Baltimore-Arlington, DC-MD-VA-WV-PA
Region
South
County
LOUDOUN
Address
20937 Ashburn Rd
Time zone
ET (UTC-5)
Office locations

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Source: FINTRX private wealth data intelligence

Intelligence for Private Wealth