Mariner

RIASEC RegisteredEst. 2010
Total AUM
$2.8B
Discretionary
$2.7B
99% of AUM
Avg account
$451K
Accounts
6,147
Employees
13
Advisory reps
12

Firm details

Headquarters
Overland Park, Kansas
CRD number
151664
Registered since
July 28, 2010
Custodians
NATIONAL FINANCIAL SERVICES LLC
Fee structure
Percentage of AUM
Client types
  • Individuals84.7%
  • HNWI15.3%
Services
Portfolio Management for IndividualsPortfolio Management for Institutional Clients

Firm profile

FINTRX

Overview

Mariner is an independent registered investment adviser organized as an LLC and operating as a capital allocator for individual and family clients. The firm charges fees based on a percentage of assets under management and provides portfolio management services to individuals, small businesses and institutional/business clients. Mariner identifies as an active ESG investor and maintains affiliations across the financial-services ecosystem—broker-dealers, trust companies, CPO/CTAs, insurers, accounting and law firms—and serves as sponsor or general partner for pooled investment vehicles. The firm has been SEC-registered since 2010 and has been recognized in the industry: it appeared on Barron’s Top 100 RIA Firms list for 2025 and was named among AdvisorHub’s 50 RIA Firms to Watch in 2026. Mariner’s structure and affiliations suggest it combines discretionary portfolio management with access to third-party alternative managers and internal sponsor activity.

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 74%, Public Funds/Mutual Funds 20%, Cash & Cash Equivalents 3%, US Government Bonds 1%, State & Local Bonds 1%, Investment Grade Corp Bonds 1%74%
  • Exchange Traded Equities74%
  • Public Funds/Mutual Funds20%
  • Cash & Cash Equivalents3%
  • US Government Bonds1%
  • State & Local Bonds1%

Owners & executives

3 of 5
  • John Cogswell

    John Cogswell

    Chief Market StrategistCRD 2674161

  • Jeffrey Poe

    Jeffrey Poe

    Chief Financial OfficerCRD 7088123

  • Cheryl Bicknell

    Cheryl Bicknell

    Chief Operating Officer, Chief Strategy OfficerCRD 4906804

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Contacts

3 of 7
  • Anne Dorian

    Anne Dorian

    Senior Vice President, Regulatory ComplianceCRD 5736231

  • Justin Brown

    Justin Brown

    Investment OperationsCRD 8184428

  • Joshua Pierce

    Joshua Pierce

    Managing DirectorCRD 4715301

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Wealth teams

FINTRX

Newly hired reps

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Recent M&A activity

FINTRX

Recent filings

FINTRX

Awards

FINTRX

ETF holdings

1 of 410

Active vs passive

$1.4B in ETFs

Passive

91%

$1.3B

Active

9%

$132M

ETFProviderStyleCategoryValueShares% of portfolio
ISHARES RUSSELL TOP 200 GROWTH ETF (IWY)BlackRockPassiveLarge Growth$118M673,6908.16%

Location

Primary office

Overland Park, KS

Johnson

Location

Overland Park, KS

Headquartered in Overland Park, KS, anchoring the Kansas City-Overland Park-Kansas City, MO-KS metro in the Midwest.

Metro area
Kansas City-Overland Park-Kansas City, MO-KS
Region
Midwest
County
Johnson
Address
5700 W 112th St
Time zone
CT (UTC-6)
Office locations

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Source: FINTRX private wealth data intelligence

Intelligence for Private Wealth