Haselkorn & Thibaut has opened an investigation into Katherine Greer Nishnic, a financial advisor and broker registered with Centaurus Financial, Inc. in Lexington, South Carolina. If you are an investor who has worked with Ms. Nishnic, understanding the background, history of customer complaints, and how to protect your interests is crucial.
Katherine Greer Nishnic – Who Is She?
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Katherine Greer Nishnic (CRD #2499553), also known as Katherine Greer Martinson or Katherine Diane Nishnic, has been a registered stockbroker and financial advisor with Centaurus Financial, Inc. since 2015, operating out of the Lexington, SC branch at 4580 Sunset Blvd., Lexington, SC 29072. Throughout her career, she has been affiliated with firms including J.P. Turner & Company, GunnAllen Financial, First Allied Securities, D.E. Frey & Company, and Merrill Lynch.
She is currently a General Securities Representative registered with FINRA, holding licenses in multiple states. In addition to her role at Centaurus, she is associated with other business entities such as COLA Wealth Advisors (for marketing/branding) and Mantei & Associates (for administrative and payroll functions).
Summary of Key Information
| Key Details | Information |
|---|---|
| Name / Also Known As | Katherine Greer Nishnic / Katherine Greer Martinson / Katherine Diane Nishnic |
| CRD Number | 2499553 |
| Current Firm | Centaurus Financial, Inc. (Lexington, SC – since 2015) |
| Other Business Names | COLA Wealth Advisors, Mantei & Associates |
| Licenses | Series 7, Series 66, and additional registrations (as per FINRA records) |
Complaints and Regulatory Disclosures: A Closer Look
Katherine Greer Nishnic has reported several historical customer disputes involving allegations such as unsuitable recommendations, misrepresentation/omissions, and breach of fiduciary duty—particularly related to corporate debt and alternative real estate securities. These disputes may be relevant for investors assessing their accounts.
Customer Disputes and FINRA Arbitrations
Below is an overview of significant settled cases involving Katherine Nishnic:
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FINRA Case No. 23-01013 (2023): Centaurus Financial, Inc.; unsuitable, high-risk, speculative, and illiquid investments. Settled for $40,000 on 03/06/2024.
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FINRA Case No. 19-01298 (2019): J.P. Turner & Co. / Centaurus; unsuitable investments. Settled for $180,000 on 09/01/2020.
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FINRA Case No. 19-01504 (2019): JP Turner & Centaurus; unsuitable investments/breach of fiduciary duty. Settled for $82,500 on 09/21/2020.
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FINRA Case No. 19-02273 (2019): JP Turner/Centaurus; mismanaged/misrepresented unsuitable investments. Settled for $55,000 on 07/16/2020.
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FINRA Case No. 18-03810 (2018): JP Turner/Centaurus; unsuitable investments. Settled for $55,000 on 11/19/2019.
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FINRA Case No. 19-01250 (2019): JP Turner/Centaurus; unsuitable investments. Settled for $57,500 on 08/17/2020.
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FINRA Case No. 19-02386 (2019): JP Turner/Centaurus; misrepresentation/breach of fiduciary duty. Settled for $7,500 on 10/22/2020.
Highest reported settlement: $180,000
Types of Allegations Reported
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Unsuitable recommendations: Strategies not aligned with risk tolerance or investment goals.
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Breach of fiduciary duty: Questions about acting in the customer’s best interest (particularly post-Reg BI).
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Misrepresentation/omission: Missing or misleading information about recommended securities.
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Concentrated, illiquid, or alternative investments: Several disputes involved high-risk real estate or corporate debt products.
No Regulatory or Disciplinary Actions Reported
According to current FINRA BrokerCheck information:
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No regulatory actions, industry bars, sanctions, or fines reported against Katherine Greer Nishnic.
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No SEC enforcement actions or civil litigation involving securities.
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No bankruptcy filings relevant to investment-related matters.
Red Flags and What Investors Should Consider
Multiple settled disputes—especially involving suitability and misrepresentation—should prompt investors to evaluate their accounts and ask:
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Were all risks and liquidity characteristics fully explained?
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Did the advisor clarify the nature of alternative or complex investments?
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Were your investments aligned with your financial goals and risk tolerance?
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Did you experience unexpected or unexplained losses?
These red flags do not imply wrongdoing but highlight the value of an independent review.
How to Protect Yourself
If you were a client of Katherine Greer Nishnic at Centaurus Financial, Inc. and experienced losses, consulting an experienced investment fraud attorney may help you understand recovery options—often through FINRA arbitration.
Haselkorn & Thibaut is a national law firm that represents investors in disputes involving stockbroker misconduct and investment losses. With over 50 years of experience, a 98% success rate, and millions recovered, the firm provides:
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Free, confidential case evaluations
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No-recovery, no-fee representation
Free Consultation – Next Steps
If you suspect unsuitability, misrepresentation, or improper investment strategies related to Katherine Greer Nishnic (Centaurus Financial, Inc.), contact Haselkorn & Thibaut today.
Call Haselkorn & Thibaut at 1-888-994-8066 for your free, confidential case evaluation. No obligation. No fee unless you recover.
For the most current information on Katherine Greer Nishnic, consult the official FINRA BrokerCheck Report.
