March 24, 2026

Guillermo Eiben Faced Morgan Stanley Investor’s Unsuitable Trading Dispute

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Investors might have sustained losses due to securities broker Guillermo Agustin Eiben [CRD: 5697705, New York, New York], based on public information located on Financial Industry Regulatory Authority (FINRA) BrokerCheck. Guillermo Eiben worked for Morgan Stanley from September 17, 2009, to January 26, 2023, and has worked for UBS Financial Services Inc. since January 3, 2023. Keep reading to discover more about Guillermo Eiben’s disclosures.

Morgan Stanley Investor Accused Eiben Of Sales Practice Violation

Notably, a client filed a complaint about Guillermo Eiben. Primarily, the client alleged that Eiben executed an investment strategy that was not in the client’s best interest between 2014 and 2023. For this reason, the client allegedly incurred damages related to mutual funds and stocks. Therefore, on October 1, 2024, Morgan Stanley settled this matter by paying the client $400,000 in damages.

Guillermo Eiben Disclosed Unsuitable Trading Allegations By Morgan Stanley Client

Additionally, a client of Morgan Stanley contested Guillermo Eiben’s sales practices, according to a complaint dated March 8, 2022. Allegedly, Eiben engaged in unsuitable trading. It appears that Eiben allegedly caused the client to sustain damages linked to options and structured products. Consequently, the client sought compensation from Morgan Stanley or Eiben in this matter. However, the firm denied this complaint.

Did You Sustain Losses Because Of Securities Broker / Financial Advisor Eiben?

Are you concerned about investments you made through Guillermo Eiben? If so, reach out to Soreide Law Group online or at (888) 760-6552 and talk with a securities attorney about a possible recovery of your investment losses. Soreide Law Group has recovered losses for clients throughout the US. Also, our securities attorneys work on a contingency fee basis and advance all costs. Eiben and brokerage firms Eiben worked for deny allegations of sales practice violations.

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