Sung Moo Cho Investigation Linked to Ameriprise and Citigroup Allegations

Financial Advisor Lost My Money

Haselkorn & Thibaut, P.A., operating as Investment Fraud Lawyers, is actively investigating the activities of Sung Moo Cho (also known as Sam Cho, CRD# 5015906) after significant allegations of investment misconduct. Our firm is leveraging our former Wall Street defense experience and insider knowledge to assess potential claims for investors who worked with Cho during his tenure at Ameriprise Financial Services, LLC and Citigroup Global Markets Inc. in New York.

If you experienced unexplained losses, unauthorized transactions, or discrepancies in your brokerage accounts linked to Sung Moo Cho, we urge you to consider your recovery options. Our attorneys have a 98% success rate across hundreds of investor cases, offer no recovery, no fee consultations, and have over 95+ years of combined securities law experience. Contact us today at 1-888-885-7162 for your free, confidential consultation.

Why Haselkorn & Thibaut Opened an Investigation Into Sung Moo Cho

Our firm has opened an investigation into Sung Moo Cho’s conduct following reports that he was permanently barred by FINRA for refusing to cooperate with an investigation regarding alleged misappropriation of approximately $3.5 million from client accounts, along with allegations of forgery and falsification of firm documents. These acts are among the gravest forms of investment fraud and raise substantial red flags that all investors should thoroughly review.

Comprehensive Background: Sung Moo Cho’s Employment and Regulatory Record

Advisor CRD Number Most Recent Employers Location Status
Sung Moo Cho
(Sam Cho)
5015906
  • Citigroup Global Markets Inc. (Oct 2025 – May 2026)
  • Ameriprise Financial Services, LLC (Jan 2021 – Oct 2025)
New York, NY Permanently Barred by FINRA (2026)

Cho’s registration history spans nearly 20 years. He was associated with at least 10 firms, including Citigroup, Ameriprise, Joseph Stone Capital, Mutual of America Securities, CUSO Financial Services, Wells Fargo Advisors, and Merrill Lynch.

  • Discharged from Citigroup: April 14, 2026, following allegations of removing client information, producing non-firm account statements, and refusing cooperation with an internal investigation.
  • FINRA Barred: Refused to comply with two separate FINRA Rule 8210 requests for information by firm deadlines, which led to his permanent bar from the industry.

Detailed List of Complaints and Red Flags

Based on our independent analysis of BrokerCheck, public records, and the timeline of events, the following red flags and allegations have been identified regarding Sung Moo Cho:

  • Alleged Misappropriation of Client Funds: Approximately $3.5 million in client brokerage assets reportedly misappropriated. These funds may have been diverted or used without authorization.
  • Forgery Allegations: Accused of forging customer signatures, potentially to process transactions, create false statements, or conceal unauthorized activity.
  • Falsification of Firm Documents: Allegedly manufactured non-firm documents or account statements and provided them to customers, circumventing compliance protocols.
  • Refusal to Cooperate With FINRA: Ignored formal requests under FINRA Rule 8210 to produce critical information, an act that itself constitutes a serious regulatory breach.
  • Removal of Sensitive Information: Removed customer personally identifiable information from institutional systems, further violating firm policies and privacy protocols.
  • Discharge for Cause From Citigroup: Immediate firing related to the handling of account information and non-cooperation with internal reviews.

What This Means for Investors: Key Risks and Supervisory Duties

The allegations against Sung Moo Cho are among the most severe forms of financial advisor misconduct. If these allegations prove true, not only is the individual liable, but the brokerage firms, Ameriprise Financial Services and Citigroup Global Markets Inc., may be held responsible as well. Broker-dealers have a strict duty to monitor, supervise, and prevent misconduct within their ranks.

  • Unexplained Account Losses: Investors who notice missing funds, unfamiliar transactions, or discrepancies in account records should act with urgency.
  • Forged or Misleading Paperwork: If you received strange or unofficial-looking statements, or were asked to sign documents you did not understand, those may be signs of fraud.
  • Brokerage Silence or Stalled Responses: Difficulty obtaining clear answers from your financial firm about Cho’s conduct could signal risk requiring immediate legal evaluation.

We have seen repeatedly that even sophisticated institutions can fail to detect and stop bad actors in time, resulting in significant investor losses.

How to Recover Investment Losses Related to Sung Moo Cho

Our attorneys have successfully helped clients recover funds through FINRA arbitration, a private, streamlined forum designed specifically for resolving investor claims against brokers and firms. In our experience, individuals stand a stronger chance for meaningful recovery than by relying on slow, uncertain class action proceedings.

  • Eligibility Window: Most FINRA claims must be filed within six years of the events in question. Time is critical.
  • Pursue Claims Against Firms: Even if the broker is barred, the supervising firm may be required to compensate for losses caused by inadequate oversight.
  • No Recovery, No Fee: Our firm accepts cases on a contingent-fee basis, meaning you pay nothing unless we recover for you.

We have handled hundreds of securities arbitration matters involving over $520 million in losses, have earned Top 2% peer recognition (Martindale-Hubbell AV Preeminent, Super Lawyers), and maintain 5-star client satisfaction ratings.

What to Do Next: Protect Your Recovery and Your Rights

If you or a loved one suffered losses while working with Sung Moo Cho at Ameriprise Financial Services or Citigroup Global Markets Inc. in New York or the surrounding area, do not delay. Your window to recover funds may be limited. Our attorneys are prepared to act decisively using our insider experience to advocate for your interests and maximize your recovery.

Get a free, confidential case review today:

  • Speak directly with a senior securities attorney
  • Understand your potential for recovery
  • No obligation, no fee unless we recover for you

Call 1-888-885-7162 or contact us online to get started. Let our team fight to recover your losses and hold those responsible fully accountable.

Disclaimer: The information contained in any post on this website is derived from publicly available sources and is not guaranteed as to accuracy and often involves allegations which may or may not be proven at some point in the future. All posts are believed to be accurate as of the time of original posting, but the accuracy and details are subject to and expected to change over time and which may contain opinions of the author at the time posted.
Scroll to Top