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Donald Trendley Mckiernan

LANDOLT SECURITIES
Lake Bluff, IL
·CRD# 1305965·42 years experience

Professional Summary

Donald Trendley Mckiernan, who also goes by Donald T Mckiernan, is a registered financial advisor currently at LANDOLT SECURITIES, INC. located in Lake Bluff, Illinois. Donald is registered as an IAR (Investment Advisor Representative) and RR (Registered Representative) and started their career in finance in 1984. Donald has worked at 8 firms and has passed the Series 63, Series 52TO, SIE, Series 7, Series 53, Series 28, Series 4 and Series 24 exams.

At a Glance

Advisory Accounts Only

Fiduciary Standard

Fee Structure

Account Minimum

Active Clients

Fiduciary Standard

Fee Structure

Account Minimum

Active Clients

Other Aliases

Donald T Mckiernan

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Contact Information

This advisor has not claimed their profile yet, so there is no contact information to display at this time.

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Disclosures are events reported to regulators, such as customer disputes, regulatory actions, employment separations, or financial events. Some are resolved, denied, or contested — a disclosure is not a verdict. We recommend asking an advisor directly about any disclosure on their record.

Disclosures on record.

Disclosures can be potential red flags, including customer disputes, regulatory fines, employer terminations, bankruptcies, judgments, liens, or certain criminal activities. Check for any disclosures as part of your thorough research when choosing an advisor.

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Years of Experience

42 years in the financial services industry

Current & Past Employments

LANDOLT SECURITIES, INC.·CRD# 28352
RIA
BD
1. 900 North Shore Drive Suite 279, Lake Bluff, IL 600442. 64 Division Avenue Suite 212, Levittown, NY 11756
January 6, 2006 - Present
LANDOLT SECURITIES, INC.·CRD# 28352
RIA
BD
1. 900 North Shore Drive Suite 279, Lake Bluff, IL 600442. 64 Division Avenue Suite 212, Levittown, NY 11756
November 8, 2005 - Present
OBERWEIS SECURITIES, INC.·CRD# 42060
BD
Antioch, IL
August 27, 2004 - November 7, 2005
BIRKELBACH INVESTMENT SECURITIES, INC.·CRD# 11490
BD
Chicago, IL
April 11, 1990 - September 24, 2004
PODESTA & CO.·CRD# 13140
BD
Chicago, IL
June 23, 1989 - April 11, 1990
THE CHICAGO CORPORATION·CRD# 1449
BD
Chicago, IL
September 7, 1988 - June 13, 1989
OBERWEIS SECURITIES, INC.·CRD# 7739
BD
June 5, 1985 - September 20, 1988
FRANCIS MANZO & COMPANY, INCORPORATED·CRD# 8187
BD
January 11, 1985 - June 10, 1985
VANTAGE SECURITIES OF COLORADO, INC.·CRD# 8622
BD
October 22, 1984 - December 6, 1984

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Allison M Moran

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Current Firm

LS
LANDOLT SECURITIES, INC.

FISN | WESTPORT ADVISORY GROUP | TORII ASSET MANAGEMENT | TK CHEN FINANCIAL SERVICES LLC | THE WEALTH PROTECTION GROUP LLC | THE WEALTH PROTECTION GROUP | LINKS FINANCIAL SERVICES | LESLIE FINANCIAL LLC | LANDOLT SECURITIES, INC.

CRD#: 28352 / SEC#: 801-135200, 8-43645
RIA
Registered Investment Advisory firm - SEC (2/23/2026 Approved)
Illinois
Registered Investment Advisory firm - SEC (2/24/2026 Terminated)
Indiana
Registered Investment Advisory firm - SEC (2/24/2026 Terminated)
North Carolina
Registered Investment Advisory firm - SEC (3/3/2026 Terminated)
Ohio
Registered Investment Advisory firm - SEC (2/25/2026 Terminated)
Texas
Registered Investment Advisory firm - SEC (2/24/2026 Terminated)
Wisconsin
Registered Investment Advisory firm - SEC (2/24/2026 Terminated)
Wyoming
Registered Investment Advisory firm - SEC (2/24/2026 Termination Requested)
BD
Broker-Dealer Firm Regulated by FINRA (Chicago district office)
Why is a state registration marked "Terminated"? When a firm registers with the SEC (usually after managing $100M+ AUM), it often withdraws separate state firm registrations unless required by that state. The firm can still serve clients there through its individually registered Investment Advisor Representatives (IARs).

Contact Information

Main Address

900 North Shore Drive Suite 279, Lake Bluff, IL 60044

Mailing Address

900 North Shore Drive Suite 279, Lake Bluff, IL 60044

Phone Number

(847) 838-5151

Established

Wisconsin since 11/09/1989

Firm Type

Corporation

Fiscal Year End

March

Firm Size

Small

# of Employees

14

SEC notice filing (14 States and Territories)

Registered to provide investment advisory services in 14 US states and territories.

FINRA licenses (53 States and Territories)

Registered to provide investment advisory services in 14 US states and territories.

Documents

Customer Relationship Summary (CRS / SEC)Customer Relationship Summary (CRS / FINRA)Latest Form ADV

Part 2 Brochures

LSI BROCHURE (6/29/2026)

Direct owners and executive officers

NamePositionCRD#
MCKIERNAN, DONALD TRENDLEYCEO, CO-CCO (BD ONLY) & FINOP1305965
MCKIERNAN, MATTHEW RICHARDCHIEF FINANCIAL OFFICER AND CCO (IA ONLY)7006128
REINHARD, TYLER JOHNCOO / CO-CCO (BD ONLY)6366204

Regulatory Assets Under Management

Total Number of Accounts

301

AUM (Assets Under Management)

$137,829,035

Disclosures

Regulatory Event

5

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Other business activities

Outside business activity is any business or activity undertaken by an advisor that is outside the scope of their relationship with their firm (e.g., consulting services, real estate, freelance work, teaching, etc.). Investors should stay informed about these activities to ensure no conflicts of interest.

Nekimi Equity Growth Fund I LLC, Managing Partner, manage the investments within this private equity fund, up to 10 hours per month mostly non-business hours

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Primary Firm SEC Registration

This SEC-registered firm can serve clients nationwide. Some states may require the firm to submit a notice filing if the firm has more than 5 clients or a physical office there. You can view these state-level filings under the section titled "State Registrations and Notice Filings".
LS
LANDOLT SECURITIES, INC.

FISN | WESTPORT ADVISORY GROUP | TORII ASSET MANAGEMENT | TK CHEN FINANCIAL SERVICES LLC | THE WEALTH PROTECTION GROUP LLC | THE WEALTH PROTECTION GROUP | LINKS FINANCIAL SERVICES | LESLIE FINANCIAL LLC | LANDOLT SECURITIES, INC.

CRD#: 28352 / SEC#: 801-135200, 8-43645
RIA
Registered Investment Advisory firm - SEC (2/23/2026 Approved)
Illinois
Registered Investment Advisory firm - SEC (2/24/2026 Terminated)
Indiana
Registered Investment Advisory firm - SEC (2/24/2026 Terminated)
North Carolina
Registered Investment Advisory firm - SEC (3/3/2026 Terminated)
Ohio
Registered Investment Advisory firm - SEC (2/25/2026 Terminated)
Texas
Registered Investment Advisory firm - SEC (2/24/2026 Terminated)
Wisconsin
Registered Investment Advisory firm - SEC (2/24/2026 Terminated)
Wyoming
Registered Investment Advisory firm - SEC (2/24/2026 Termination Requested)
BD
Broker-Dealer Firm Regulated by FINRA (Chicago district office)
Why is a state registration marked "Terminated"? When a firm registers with the SEC (usually after managing $100M+ AUM), it often withdraws separate state firm registrations unless required by that state. The firm can still serve clients there through its individually registered Investment Advisor Representatives (IARs).

State Registrations and Notice Filings

Listed states reflect where the advisor is authorized to serve clients under state regulations.
IAR
means the advisor is registered as an Investment Advisor Representative in this state and is authorized to provide investment advice to clients there.
RR
indicates the advisor is registered as a Registered Representative in this state, allowing securities offerings such as stocks, bonds, and mutual funds through a broker-dealer.
RR
Arizona
(11/14/2005)
RR
California
(11/8/2005)
RR
Florida
(11/8/2005)
RR
Georgia
(12/21/2015)
RR
Illinois
(11/8/2005)
RR
Louisiana
(1/19/2006)
RR
Massachusetts
(2/2/2021)
RR
Michigan
(11/8/2005)
RR
Missouri
(10/2/2019)
RR
Montana
(8/26/2020)
RR
New Jersey
(4/15/2019)
RR
New York
(2/28/2018)
RR
North Carolina
(11/28/2023)
RR
Pennsylvania
(12/19/2024)
RR
South Dakota
(1/15/2019)
RR
Tennessee
(9/12/2023)
RR
Virginia
(8/5/2021)
RR
Wisconsin
(1/6/2006)
IAR
Wisconsin
(1/6/2006)

Don't see your state listed? The advisor may still be able to work with you under the federal De Minimis Rule, which allows up to five investment advisory clients in a state without registration. Some states, like TX, LA, NE, and NH, may still require registration or notice filing. Contact the advisor or their firm to confirm their investment advisory availability in your state.Note:This rule does not apply to broker-dealer activity.

Exams

Financial professionals may take different exams throughout their careers based on the types of services they provide and roles they perform.

Series 63 — Uniform Securities Agent State Law Examination

Passed Oct 1984About the Series 63 exam

Series 52TO — Municipal Securities Representative Examination

Passed Jan 2023About the Series 52TO exam

SIE — Securities Industry Essentials Examination

Passed Oct 2018About the SIE exam

Series 7 — General Securities Representative Examination

Passed Sep 1984About the Series 7 exam

Series 53 — Municipal Securities Principal Examination

Passed May 2023About the Series 53 exam

Series 28 — Introducing Broker/Dealer Financial Operations Principal Examination

Passed May 2021About the Series 28 exam

Series 4 — Registered Options Principal Examination

Passed Jan 2021About the Series 4 exam

Series 24 — General Securities Principal Examination

Passed Jul 1993About the Series 24 exam
FINRA
SRO Registrations

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CRS (Client Relationship Summary) - RIA

Click below to view Donald Trendley Mckiernan's CRS (Customer Relationship Summary).

CRS (Customer Relationship Summary)

CRS (Client Relationship Summary) - BD

Click below to view Donald Trendley Mckiernan's CRS (Customer Relationship Summary).

CRS (Customer Relationship Summary)

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