Marathon Financial Group

RIASEC RegisteredEst. 2025
Total AUM
$308M
Discretionary
$308M
100% of AUM
Avg account
$469K
Accounts
656
Employees
6
Advisory reps
4

Firm details

Headquarters
Boston, Massachusetts
CRD number
338006
Registered since
August 29, 2025
Custodians
FIDELITY DISTRIBUTORS COMPANY LLC
Fee structure
Percentage of AUM, Fixed Fees
Client types
  • HNWI93.85%
  • Individuals6.15%
Services
Financial PlanningPortfolio Management for IndividualsPortfolio Management for Institutional Clients

Firm profile

FINTRX

Overview

Marathon Financial Group is an independent registered investment adviser organized as an LLC and SEC-registered in 2025. The firm focuses on serving individual and family clients through fee-based financial planning and discretionary portfolio management. Its business model uses both percentage-of-AUM and fixed fee arrangements. Marathon does not identify itself as a capital allocator or an active ESG investor, and it is not listed as a pension consultant or related adviser in the available record. Advisory activity is concentrated on financial planning and portfolio management for individuals, small businesses, and business or institutional clients. The firm's ADV-classified primary asset preference is labeled as “Other,” suggesting customized managed accounts or non-standard account groupings rather than a single mainstream sleeve.

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: Other 100%100%
  • Other100%

Owners & executives

1 of 1
  • Jonathan Yeager

    Jonathan Yeager

    Chief Operating OfficerCRD 5083040

Contacts

3 of 3
  • Charles Brown Iv

    Charles Brown Iv

    Founder and PrincipalCRD 5773928

  • Connor Gallivan

    Connor Gallivan

    Financial AdvisorCRD 6671714

  • Michael Neill

    Michael Neill

    Director of Investments & TradingCRD 6515915

Wealth teams

FINTRX

Newly hired reps

FINTRX

Recent M&A activity

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Recent filings

FINTRX

Awards

FINTRX

ETF holdings

1 of 29

Active vs passive

$74.7M in ETFs

Passive

91%

$67.8M

Active

6%

$7M

ETFProviderStyleCategoryValueShares% of portfolio
VANGUARD GROWTH INDEX FUND (VUG)VanguardPassiveLarge Growth$11.2M129,70614.95%

Location

Primary office

Boston, MA

Suffolk

Location

Boston, MA

Headquartered in Boston, MA, anchoring the Boston-Worcester-Providence, MA-RI-NH-CT metro in the Northeast.

Metro area
Boston-Worcester-Providence, MA-RI-NH-CT
Region
Northeast
County
Suffolk
Address
131 Dartmouth St
Time zone
ET (UTC-5)
Office locations

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Source: FINTRX private wealth data intelligence

Intelligence for Private Wealth