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Mariner

SEC-registered adviser since 2006Overland Park, KSCRD 140195

$125.4B
AUM
55,512
Clients
0.60–1.25%
Fee
933
Advisory staff

From Form ADV filed 5 August 2026 · data retrieved 15 October 2026SEC record

Mariner is an investment adviser headquartered in Overland Park, Kansas, and registered with the SEC since 2006. Its clients include high-net-worth individuals, other individuals and banking or thrift institutions. High-net-worth individuals account for 84% of its regulatory assets under management.

Its services include financial planning, portfolio management for individuals and small businesses, portfolio management for pooled vehicles, portfolio management for institutions, pension consulting, selecting other managers, publishing newsletters, and educational seminars. Fee arrangements include a percentage of assets under management, hourly charges and fixed fees. Mariner Wealth Advisors, LLC owns 75% or more of Mariner, and Martin Bicknell is its CEO.

Clients

Mariner serves 55,512 clients, 22,322 of them high-net-worth individuals. The average client has about $2.3 million with the firm, and high-net-worth clients hold 84% of its $125.4 billion in assets.

Regulatory assets by client type
  • Individuals32,261 clients9%
  • High-net-worth individuals22,322 clients84%
  • Banking or thrift institutions56 clients3%
  • Pension and profit-sharing plans458 clients3%
  • OtherPooled investment vehicles, Charitable organizations, State or municipal government entities, Other investment advisers, Insurance companies, Corporations and other businesses2%

What it does

Mariner provides financial planning, portfolio management for individuals and small businesses, portfolio management for pooled vehicles, portfolio management for institutions, pension consulting, selecting other managers, publishing newsletters, educational seminars and other activities. It is paid through a percentage of assets, hourly charges and fixed fees.

Mariner provided financial planning to 41,000 clients last fiscal year and advises 2 private funds.

98.2% of assets ($123.19B across 184,275 accounts) are managed with discretion; $2.22B across 2,516 accounts are not. $71.1M sits in a wrap fee program the firm both sponsors and manages. 0% of clients are outside the U.S., and 216 clients received advice without assets under management last fiscal year.

Show the full table
Individuals (other than HNW)32,261
Regulatory AUM
$10,674,559,823
Share
8.5%
Avg. per client
$331K
High-net-worth individuals22,322
Regulatory AUM
$104,872,690,875
Share
83.6%
Avg. per client
$4.70M
Banking or thrift institutions56
Regulatory AUM
$3,993,178,008
Share
3.2%
Avg. per client
$71.3M
Pooled investment vehicles2
Regulatory AUM
$9,243,563
Share
0.0%
Avg. per client
$4.62M
Pension and profit-sharing plans458
Regulatory AUM
$3,803,929,788
Share
3.0%
Avg. per client
$8.31M
Charitable organizations145
Regulatory AUM
$683,830,768
Share
0.5%
Avg. per client
$4.72M
State or municipal government entities1
Regulatory AUM
$13,184,937
Share
0.0%
Avg. per client
$13.2M
Other investment advisers6
Regulatory AUM
$205,159,355
Share
0.2%
Avg. per client
$34.2M
Insurance companies4
Regulatory AUM
$273,004,280
Share
0.2%
Avg. per client
$68.3M
Corporations and other businesses257
Regulatory AUM
$879,707,891
Share
0.7%
Avg. per client
$3.42M
Total55,512

What the accounts hold

Separately managed account assets by class, year end

The filed percentages total 99%. The values below are shown as filed.

Exchange-traded equity securities
37%
U.S. government/agency bonds
4%
U.S. state and local bonds
5%
Investment grade corporate bonds
5%
Derivatives
1%
Securities issued by registered investment companies or business development companies
38%
Securities issued by pooled investment vehicles (other than registered investment companies)
2%
Cash and cash equivalents
7%

Custodians

Mariner’s client accounts are held mainly at Charles Schwab, with 51% of managed assets, and Fidelity, with 39%. Mariner has custody of $33.48B for 18,628 clients.

Managed account assets by custodian
  • FidelityNational Financial Services LLC · Boston, MA · $48.86B39%
  • Charles SchwabCharles Schwab & Co., Inc. · San Francisco, CA · $64.41B51%
  • All other custodians$12.14B10%

Ownership and leadership

Mariner Wealth Advisors, LLC owns 75% or more of Mariner, and Martin Bicknell is its CEO.

Who owns the firm
Mariner, LLC· the adviser

  • Mariner Wealth Advisors, LLC

    Control person · since September 2008

    Owns 75% or more of Mariner, LLC

  • Gei Capital VIII, LLC

    General partner of Green Equity Investors VIII L.P. · Control person · since June 2019

Leadership

  • Martin Bicknell
    Chief Executive Officer
  • Maureen Kiefer-Goldenberg
    Senior Vice President, Compliance
  • Jeffrey Poe
    Chief Financial Officer
  • Cheryl Bicknell
    Chief Operating Officer
  • Anne Dorian
    Chief Risk Officer and CCO
  • Deann Elmore
    Chief Services Officer
  • Bradley Rollins
    Chief Investment Officer

Staff

  • 1,889 employees
  • 933 in advisory functions
  • 933 state-registered reps
  • 108 broker-dealer reps
  • 254 insurance agents
  • 91 soliciting firms

Fees

Mariner charges 0.60% to 1.25% a year for investment advisory services.

Investment advisory services
Stated range
0.60% to 1.25% a year
How it is charged
Tiered and blended percentage of assets under management; negotiable, billed in advance.

Fee schedule, investment advisory services

Up to $1,000,0001.25%
$1,000,001 to $5,000,0001.00%
$5,000,001 to $10,000,0000.80%
Above $10,000,0000.60%

Each band is charged at its own rate. The fee is negotiable.

Offices and registrations

Besides its headquarters, Mariner has 130 offices, with 129 listed addresses across 43 states.

Listed office addresses by state

Kansas · 3 listed addresses

  • 5700 W. 112th Street, Suite 500, Overland ParkHQ
  • 1313 North Webb Road, Wichita
  • 209 E 29th Street, Pittsburg

Other business names

Mariner has reported 5 other business names to the SEC.

  • Adviceperiod
  • Mariner Institutional
  • Mariner Ultra
  • Mariner Wealth
  • Mariner Wealth Advisors

Registration details

Legal name
Mariner, LLC
Headquarters
5700 W. 112th Street, Suite 500, Overland Park, KS 66211
Phone
913-904-5700
Website
www.marinerwealthadvisors.com
SEC file
801-66632
Structure
Kansas LLC
Fiscal year end
December

This directory does not report disciplinary history, for any firm or individual, in either direction. The SEC publishes the complete record, including any disciplinary events, and it is the authoritative place to check one. See this firm's record on adviserinfo.sec.gov

Common questions

How many clients does Mariner have?

Mariner has 55,512 clients and manages $125.4 billion for them, as of August 2026. They include 32,261 other individuals, 22,322 high-net-worth individuals and 458 pension and profit-sharing plans.

Source: Form ADV Part 1A, Items 5.D and 5.F, filed 5 August 2026

What services does Mariner offer?

Mariner provides financial planning, portfolio management for individuals and small businesses, portfolio management for pooled vehicles, portfolio management for institutions, pension consulting, selecting other managers, publishing newsletters, educational seminars and other activities. Its services also include divorce planning, education planning, estate planning, family office services, insurance, tax planning and tax preparation.

Source: Form ADV Part 1A, Item 5.G, from the SEC's 2 October 2026 data file; Part 2A brochure, Item 4

How much does Mariner charge?

Mariner charges 0.60% to 1.25% a year for investment advisory services, tiered and blended across 4 bands.

Source: Part 2A brochure, Item 5

Which custodians does Mariner use?

Mariner’s separately managed account assets are held at Charles Schwab & Co., Inc. (San Francisco, CA), with $64,409,099,979 and National Financial Services LLC (Boston, MA), with $48,858,009,649. Only custodians holding at least a tenth of those assets are named.

Source: Form ADV Part 1A, Schedule D, Section 5.K.(3), filed 5 August 2026

How many financial advisors does Mariner have?

Mariner has 933 investment adviser representatives registered with state securities authorities, out of 1,889 employees, and 933 perform investment advisory functions. 108 are registered representatives of a broker-dealer and 254 are licensed insurance agents.

Source: Form ADV Part 1A, Items 5.A and 5.B, from the SEC's 2 October 2026 data file

What does Mariner invest in?

At the end of its last fiscal year, Mariner’s separately managed accounts held 38% registered funds (mutual funds, ETFs, BDCs), 37% exchange-traded equities, 7% cash and equivalents, 5% state and local bonds, 5% investment grade corporate bonds, 4% U.S. government and agency bonds, 2% pooled vehicles (private funds and similar) and 1% derivatives. It advises 2 private funds.

Source: Form ADV Part 1A, Items 5.K.(1) and 7.B, from the SEC's 2 October 2026 data file

Who owns Mariner?

Mariner is owned through a chain of holding companies by Green Equity Investors Side VIII L.P. Its direct owner is Mariner Wealth Advisors, LLC (75% or more).

Source: Form ADV Part 1A, Schedules A and B, filed 5 August 2026

How does Mariner get paid?

Mariner is paid through a percentage of assets under management, hourly charges and fixed fees. Its Form ADV lists no commissions or performance-based fees among how it is paid.

Source: Form ADV Part 1A, Item 5.E, from the SEC's 2 October 2026 data file

Sources

  1. Form ADV Part 1A, amendment filed 5 August 2026. Items 1, 5, 9, 11 and Schedules A, B and D.
  2. Form ADV Part 2A brochure, dated 17 July 2026. Items 4, 5, 7, 12 and 15.
  3. IAPD firm record, CRD 140195.

Retrieved 15 October 2026. All are published by the SEC and may have been amended since. The logo is reproduced for identification from Mariner, website.

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This profile is compiled from public regulatory filings and is provided for informational purposes only. Niva Wealth is not affiliated with Mariner, LLC and makes no representation about the quality of its services. Figures reflect the filing dates shown and may have changed. Ownership percentages are the bands reported to the SEC, not exact figures.