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Mark David Wheeler

Advisor at William Blair — Orland Park, IL

Updated today

Credentials

CFA®, Series 63, Series 65

Experience

25 years

Location

Orland Park, IL

William Blair logo

William Blair

Enterprise

Total advisors

335

Across 63 offices

Clients per advisor

105 High

Avg AUM per client

$1,492,448 Very High

HNW client ratio

26% High

About

Mark Wheeler is a CFA® charterholder with 24 years of industry experience and has been with William Blair since 2009. He is based in Orland Park, IL, and holds the Series 63 and Series 65 licenses. William Blair’s Private Wealth Management division offers investment management, financial planning, and wealth services to individuals, foundations, pension, and corporate clients. The firm employs an active, research-driven approach across various asset classes and provides access to proprietary models, third-party sub-managers, and private fund opportunities.

Client services

Based on William Blair

Financial planning Portfolio management Selection of other advisers Equity research services

Expertise

Based on William Blair

Private / alternative investments Wealth management Active portfolio management ESG / Sustainable investing Retirement plans for business owners (SEP, solo 401k)

Occupation focus

Based on William Blair

Founder/Business Owner Executive

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Fee options

Percentage

$0+: Up to 2.00% annually, subject to negotiation, payable quarterly (in advance or arrears) $50,000+: Minimum for PWM Non-Wrap Program Accounts $100,000+: Minimum for William Blair Wrap Program Accounts $100,000+: Minimum for Platform Separate Accounts (may be higher for certain third-party managers) $2,000,000+: Minimum for WBIM Sub-Advisory/WBIM Separate Accounts

Performance-based

Performance-based fees (carried interest) apply only to MB Partnership Series as described in fund documents; not offered generally to clients.

Other

Account minimum: $50,000 for PWM Non-Wrap Program Accounts; $100,000 for William Blair Wrap Program Accounts; $100,000 for Platform Separate Accounts (may be higher for certain third-party managers); $2,000,000 for WBIM Sub-Advisory/WBIM Separate Accounts Fee-only: Flat fees or asset-based fees for non-discretionary advisory and consulting services, subject to negotiation.

Location

See office

Orland Park, IL

Orland Park IL

Advisors at this office

3

Most active in

Illinois

Work history

25 years of industry experience

William Blair & Co Llc

2009 - Present • 17 years

Chicago, IL

J.P. Morgan Securities

2008 - 2009 • 1 year

Chicago, IL

J.P. Morgan Securities Inc.

2006 - 2008 • 2 years

Chicago, IL

Banc One Securities Corporation

2002 - 2006 • 4 years

Chicago, IL

Disclosures

Exclamation point means they have disclosures of this type. Check mark means no disclosures of this type were found.

Business activities & affiliations

Michael C

Series 66, Series 7

Downers Grove, IL

United Advisor Group

Michael Corson is a financial advisor at United Advisor Group with three years of industry experience. He holds a Series 66 designation and has previously worked at Thrivent Financial and Thrivent Investment Management Inc. Outside of advising, he is an independent insurance agent, primarily selling disability insurance. United Advisor Group serves individuals, small businesses, trusts, and charities through a network of independent advisers, offering discretionary and non-discretionary investment management, financial planning, and family office services. The firm combines proprietary model portfolios, custom trading, and third-party money managers using a variety of analytical and asset-allocation strategies.

Retirement income strategy Retirement withdrawal strategies Home buying College savings (529s, UTMA, etc.) General retirement planning Sales Professional Founder/Business Owner Independent Contractor Union Employee HENRY (High Earners, Not Rich Yet) Young Families Mid-Career Professionals Approaching retirement Married/Couples/Partners
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John D

Series 65, Series 63

Hinsdale, IL

Doncaster Wealth LLC

John Doncaster is a financial advisor at Doncaster Wealth LLC in Hinsdale, IL, with 12 years of industry experience. He holds Series 65 and Series 63 credentials and previously worked for over a decade at Northwestern Mutual in various investment and insurance roles. Outside of advising, he maintains an active role in insurance sales and servicing with Pacific Life. Doncaster Wealth LLC is an independent, single-advisor firm managing approximately $11 million for about 35 clients. The firm offers discretionary asset management and fee-based financial planning, tailoring investment programs to individual goals using fundamental and cyclical analysis alongside Modern Portfolio Theory.

General retirement planning Income planning Wealth management Tax-loss harvesting Charitable giving tax strategies
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Frederick M

Series 63, Series 65

Palos Heights, IL

Palos Wealth Advisors, LLC

Frederick Moore is the principal of Palos Wealth Advisors, LLC, an independent advisory firm based in Palos Heights, Illinois. He holds Series 63 and Series 65 licenses and has 16 years of industry experience. In addition to his advisory role, he practices as a licensed attorney specializing in estate planning, dedicating approximately 15% of his time to this legal work. Palos Wealth Advisors offers discretionary portfolio management services to individuals, including high-net-worth clients, as well as pension and profit-sharing plans. The firm employs quantitative models and technical analysis to construct tailored investment portfolios and provides regular performance reporting and client reviews.

Concentrated stock management Attorney
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Douglas R

Series 63

New Lenox, IL

Lenox Capital Management, Inc.

Douglas Ruth is the president and owner of Lenox Capital Management, Inc., an independent registered investment adviser based in New Lenox, Illinois. He holds a Series 63 designation and has 40 years of industry experience. Ruth has led Lenox Capital Management since 1997 and has been involved with Lenox Financial Services, Inc. since 1994. He also serves as a board member of TB Clinic and operates an insurance agency offering life, health, and dental products. Lenox Capital Management provides portfolio management and financial planning services primarily to individual clients, as well as businesses and institutions. The firm employs both fundamental and technical analysis, supporting active and passive investment strategies, with ongoing account reviews conducted by Ruth as the sole adviser.

Active portfolio management General tax planning
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Zhe L

CFA®

Naperville, IL

April Asset Management LLC

Zhe Li is a CFA® charterholder and principal at April Asset Management LLC in Naperville, IL, with one year of experience in financial advising. Prior to founding the firm, Li held roles at FICO-Wiseco, Tongdun Technology, Ernst & Young, and Protiviti Inc. April Asset Management LLC, formed in 2026, provides discretionary and non-discretionary portfolio management and financial planning services to individual and business clients. The firm employs a long-term, diversified investment approach using U.S. equities, ETFs, bonds, and certificates of deposit, and offers both hourly and fixed-fee financial planning arrangements.

General tax planning Wealth management Passive / index investing Active portfolio management
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Lyman H

CFP®, Series 66

Frankfort, IL

Regal Oak Financial, LLC

Lyman Howell is a CFP® professional with 14 years of industry experience, currently serving as the sole advisor at Regal Oak Financial, LLC since 2016. He has also operated as an independent financial consultant under his own name since 2014. Outside of his advisory work, Howell provides consulting to a nonprofit organization developing a business incubator and small loan program for micro-businesses. Regal Oak Financial is an independent advisory firm offering comprehensive financial and investment planning services to individuals, business owners, high-net-worth clients, and nonprofit organizations. The firm emphasizes goal-setting, client-accessible financial plans, and investment strategies focused on low-cost funds, with a particular focus on nonprofit and charitable clients and ongoing client education.

General retirement planning Founder/Business Owner
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