Last Updated: November 2025 — Lake Bluff, IL
Here’s what you need to know about Lake Bluff, IL stockbroker Donald McKiernan:
- Name: Donald Trendley McKiernan
- Current Employer: Landolt Securities, Inc., 900 North Shore Drive, Suite 279, Lake Bluff, IL 60044 (CEO; registered since 11/2005)
- Prior Firms: Oberweis Securities, Inc. (various registrations incl. 1985–1988 and 2004–2005); Birkelbach Investment Securities, Inc. (1990–2004); Robert A. Podesta & Co. (1989–1990); The Chicago Corporation (1988–1989)
- Other Business Affiliations: Nekimi Equity Growth Fund I LLC — Managing Partner
- CRD number: 1305965
- Stockbroker / Financial Advisor. (General Securities Principal & Representative; also Registered Options Principal; Municipal Securities Principal/Representative; licensed in multiple states)
- Can Broker be Sued in FINRA: Yes
- Highest Award or Settlement: $225,000
If you’ve sustained damages from Mr. McKiernan, discuss your case with experienced investment fraud lawyer Bob Rex at (877) 224-3199 for a free consultation.
Did You Lose Money with Donald T. McKiernan As Your Stockbroker?
Two FINRA customer arbitrations asserted that a then-Landolt Securities registered representative, Anthony Liddle, solicited customers to purchase various investments but instead misappropriated funds. The claims alleged that Mr. McKiernan for was negligent and failed to supervise Liddle and alleged violations of the Wisconsin Uniform Securities Act:
- FINRA Case No. 22-01529 — Notice served October 4, 2022. Customers alleged Liddle solicited:
- Athene annuity ($245,000),
- Red Oak Capital Holdings ($80,000), and
- Two UTMA accounts ($48,000),
for a total of $373,000 misappropriated; plus a separate customer alleged $125,000 in misappropriated GWG Holdings L-Bonds, bringing alleged damages in this filing to $498,000. Settled 09/29/2023 for $225,000.
- FINRA Case No. 22-02447 — Notice served October 31, 2022. Customer alleged Liddle solicited GWG Holdings L-Bonds but misappropriated $110,000. Settled 07/12/2023 for $45,000
A separate written customer complaint received 12/31/2022 alleged Liddle misappropriated $797,000 (alleged damages $856,443) and asserted negligence/failure to supervise against Mr. McKiernan; the firm denied the complaint on 10/04/2023 and did not pursue the matter further.
Firms Have a Duty to Supervise their Financial Advisors (FINRA Rules 3110 & 2090)
Brokers and their firms have a duty to comply with the FINRA suitability rule which requires that they have a reasonable basis to believe that a recommendation is suitable for the customer.
FINRA Rule 2111- suitability -Regulation Best Interest
Allegations of Broker Misconduct Against Donald T. McKiernan
- Failure to Supervise— Firms and responsible principals must establish and enforce written supervisory procedures; inadequate supervision may violate FINRA Rule 3110 (Supervision).
Recover Your Investment Losses Now With Rex Securities Law
If you have suffered investment losses in an account handled by Donald Trendley McKiernan, contact us for a complimentary consultation with an experienced securities lawyer to learn how you may be able to recover damages through FINRA arbitration.
With offices in Boca Raton, FL, and Austin, TX, stockbroker fraud attorney Bob Rex provides representation to investors nationwide who are seeking recovery of investment losses due to the negligence or fraud of stockbrokers, financial advisors, and broker-dealers.
If you have questions about how your account has been handled, call (877) 224-3199 to speak with an experienced securities attorney at no cost to you.
Most cases are handled on a contingent fee basis, meaning that you do not pay legal fees unless we are successful.