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Mack Investment Securities, Inc.

Updated today

Client assets under management

$295,762,191

Clients

661

43% high-net worth

Advisors

7

of 8 employees

Firm type

Team

4-10 advisors or $500M+ in AUM

Clients per advisor

94

High

Average account size

$447,447

About

Mack Investment Securities serves individual investors (including high‑net‑worth clients), retirement and pension plans, and other institutional and custodial accounts, offering portfolio management, model strategy management through its Money Managers Plus (MMP) program, financial planning, pension consulting, and market timing services. The firm provides both discretionary and non‑discretionary advisory services and also makes referrals to independent advisers as part of its service menu.

The firm’s investment process centers on a manager‑of‑managers approach under MMP, allocating client assets among internal and third‑party subadvisors and model portfolios while also managing individual accounts directly. Several in‑house and subadvisor strategies explicitly use tactical and timing techniques — including technical indicators, seasonality analysis, hedging, and the selective use of leveraged and inverse ETFs — and the brochure notes that holdings and turnover can vary on an account‑by‑account basis.

Notable distinctions include the firm’s dual role as an SEC‑registered investment adviser and a FINRA member broker‑dealer, plus an affiliated insurance brokerage, which allows associated persons to implement recommendations in separate broker and insurance capacities and receive commissions or 12b‑1 compensation when clients elect that route. The firm also publishes a client newsletter and discloses affiliated subadvisors within its MMP program and explicit market‑timing services — features that create operational overlaps and potential conflicts of interest described in the brochure.

Client services

Financial planning Portfolio management Selection of other advisers Newsletters or periodicals Market timing

Expertise

Active portfolio management Private / alternative investments Retirement income strategy Annuities

Occupation focus

Executive Founder/Business Owner

Fee options

Fixed

Financial Planning and Consulting Services: fixed fees typically $2,000 to $8,000.

Percentage

$0 - : $100,000: Not clearly stated $100,000+: 1.00% to 2.25% annually for Individual Portfolio Management and Portfolio Management Services; 1.25% to 2.25% annually for Money Managers Plus Program and Pension Consulting Services

Commissions

Clients may engage firm's principals or associated persons as registered representatives to implement recommendations on commission basis; commissions vary.

Project-based

Financial Planning and Consulting: $300 to $500 per hour with two-hour minimum.

Other

Account minimum: $100,000 Fee-only: Financial Planning: one-time fixed fee $2,000 to $8,000; ongoing fixed fee $800 to $5,000 per quarter; hourly $300 to $500 per hour with two-hour minimum; Consulting Services: hourly $300 to $500 per hour, fixed fee $2,000 to $8,000, or 1.25% to 2.25% of assets under advisement.

Main office location

Mack Investment Securities, Inc.

211 Waukegan Road, Ste 300

Northfield IL 60093, United States

Number of offices

2

Most active in

Arizona · California · Colorado · Florida · Illinois · Indiana · Iowa · Louisiana · Michigan · Mississippi · Missouri · Ohio · Texas · Washington · Wisconsin

Disclosures

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

Business activities & affiliations

Advisors at this firm

user avatar

Steven M

Series 63, Series 65

Lincolnshire, IL

Mack Investment Securities, Inc.

Steven Milstein is a financial advisor at Mack Investment Securities, Inc. with 34 years of industry experience. He holds Series 63 and Series 65 designations and has been with Mack Investment Securities since 1995. Outside of his advisory role, he serves as president of The Milstein Co., a business involved in the sale of egg products and life and health insurance. Mack Investment Securities advises individuals, pension and profit-sharing plans, corporations, and other custodial accounts through discretionary and non-discretionary portfolio management, model strategy management, financial planning, and pension consulting. The firm uses a manager-of-managers approach combined with firm-run model strategies that include tactical shifts and use of ETFs, integrating advisory, broker-dealer, and insurance activities within its services.

Active portfolio management Private / alternative investments Retirement income strategy Annuities Executive Founder/Business Owner
user avatar

John B

Series 63, Series 65

Northfield, IL

Mack Investment Securities, Inc.

John Budziak is a financial advisor at Mack Investment Securities, Inc. with 37 years of industry experience. He holds Series 63 and Series 65 licenses and has been with Mack Investment Securities and Cornerstone National Bank since 2010. In addition to his advisory role, he serves as Senior Vice President and Trust Officer at Cornerstone National Bank. Mack Investment Securities advises individuals, including high-net-worth clients, pension and profit-sharing plans, corporations, and other custodial accounts. The firm employs a manager-of-managers approach combined with firm-run model strategies that incorporate tactical shifts and the use of ETFs, offering both discretionary and non-discretionary portfolio management alongside financial planning and market-timing services.

Active portfolio management Private / alternative investments Retirement income strategy Annuities Executive Founder/Business Owner
user avatar

Stephen M

CFP®, Series 63

Northfield, IL

Mack Investment Securities, Inc.

Stephen Mack is a financial advisor at Mack Investment Securities, Inc. in Northfield, IL, holding the CFP® and Series 63 designations with 44 years of industry experience. He has been with Mack Investment Securities, Inc. since 1986. Outside of his advisory work, he serves on a regional FINRA committee and acts as a Coldwell Banker referral agent. Mack Investment Securities, Inc. serves individuals, including high-net-worth clients, pension and profit-sharing plans, corporations, and other custodial accounts. The firm combines manager-of-managers programs with firm-run model strategies, offering discretionary and non-discretionary portfolio management alongside financial planning and pension consulting.

Active portfolio management Private / alternative investments Retirement income strategy Annuities Executive Founder/Business Owner
user avatar

Michael M

Series 63, Series 65

Northfield, IL

Mack Investment Securities, Inc.

Michael Mack is a financial advisor with Mack Investment Securities, Inc. in Northfield, IL, holding Series 63 and Series 65 licenses and 17 years of industry experience. His prior roles include positions at JP Morgan Securities, LLC and JP Morgan Chase Bank. Outside of finance, he is the sole owner of Midwest EMF Solutions LLC, a company focused on assessing homes for environmental health factors. Mack Investment Securities, Inc. serves individuals, pension and profit-sharing plans, corporations, and other custodial accounts with discretionary and non-discretionary portfolio management, financial planning, and pension consulting. The firm employs a manager-of-managers approach that combines oversight of sub-advisers with firm-run model strategies, incorporating tactical shifts and a range of investment products including ETFs.

Active portfolio management Private / alternative investments Retirement income strategy Annuities Executive Founder/Business Owner
user avatar

Sheldon K

CFP®, Series 63

Northfield, IL

Mack Investment Securities, Inc.

Sheldon Kaiz is a CFP® with 41 years of industry experience and has been with Mack Investment Securities, Inc. since 1988. He holds a Series 63 license and is based in Northfield, IL. Mack Investment Securities, Inc. serves individuals, including high-net-worth clients, pension and profit-sharing plans, corporations, and other custodial accounts. The firm combines manager-of-managers programs with firm-run model strategies that incorporate technical, seasonal, and tactical indicators, offering both discretionary and non-discretionary portfolio management alongside financial planning and pension consulting services.

Active portfolio management Private / alternative investments Retirement income strategy Annuities Executive Founder/Business Owner
user avatar

John K

CFP®, Series 63

Northfield, IL

Mack Investment Securities, Inc.

John Kelty is a CFP® professional with 37 years of experience at Mack Investment Securities, Inc., where he has worked since 1989. He holds a Series 63 license and is based in Northfield, IL. Outside of his advisory role, he is involved on an as-needed basis with a family-owned lawn care, paving, and snow removal business. Mack Investment Securities, Inc. serves individuals, including high-net-worth clients, as well as pension and profit-sharing plans, corporations, and custodial accounts. The firm employs a manager-of-managers approach combining independent and affiliated sub-advisers with firm-run model strategies that include tactical shifts and use of ETFs, offering both commission and fee-based implementation.

Active portfolio management Private / alternative investments Retirement income strategy Annuities Executive Founder/Business Owner
user avatar

Kevin M

Series 66

Northfield, IL

Mack Investment Securities, Inc.

Kevin Mack is a financial advisor with Mack Investment Securities, Inc. in Northfield, IL, holding a Series 66 designation and 14 years of industry experience. He has been with Mack Investment Securities since 2006. Mack Investment Securities advises individuals, pension and profit-sharing plans, corporations, and other custodial accounts, offering services such as portfolio management, financial planning, pension consulting, and market-timing. The firm employs a manager-of-managers structure combining sub-adviser oversight and firm-run model strategies, with some models allowing tactical asset allocation shifts and use of ETFs, including leveraged and inverse products.

Active portfolio management Private / alternative investments Retirement income strategy Annuities Executive Founder/Business Owner
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