Financial Industry Regulatory Authority (FINRA) BrokerCheck shows that investors have filed suitability disputes about securities broker Michael Howard Rosenmayer [CRD: 2352488, Los Angeles, California]. Evidently, he joined Oppenheimer Co. Inc. on June 14, 2007. Below, investors can learn more about these disclosures about the securities broker.
Specifically, on May 25, 2023, a client of Oppenheimer Co. Inc. initiated FINRA Arbitration No. 23-01541 against Michael Rosenmayer. The client alleged unsuitable trading, breach of contract, negligence, and breach of fiduciary duty. Consequently, the client reported losses involving municipal bonds and private placement products, seeking over $3,000,000 in compensation from Oppenheimer Co. Inc. or Rosenmayer. This arbitration is currently awaiting resolution.
An investor of Oppenheimer Co. Inc. disputed Michael Rosenmayer’s sales practices through FINRA Arbitration No. 23-00735, filed on March 28, 2023. The investor alleged violations of California securities law, FINRA Rules, and federal securities laws. Also, the claim alleged unsuitability, negligence, breach of contract, and negligent supervision regarding purchases of Capital Trust Agency Florida Senior Living Bonds. The investor reported losses on municipal bonds and seeks $231,826 in compensatory damages from Oppenheimer Co. Inc. or Rosenmayer.
A complaint dated March 13, 2023, by an Oppenheimer Co. Inc. investor targeted Michael Rosenmayer’s sales practices. The investor contended that Rosenmayer failed to disclose the risks tied to their investments adequately, leading to reported losses in stocks. As a result, the investor sought compensatory damages from Oppenheimer Rosenmayer.
In January 2018, an investor filed a complaint regarding Michael Rosenmayer, alleging that he made an unsuitable investment recommendation. This reportedly led to losses in municipal bonds for the investor. To resolve the issue, Oppenheimer Co. Inc. repurchased the bond at market price, slightly above the purchase price, on July 31, 2018, and also compensated the investor for the interest accrued during the period the bond was held.
An investor of Oppenheimer Co. Inc. raised issues about Michael Rosenmayer’s sales practices in FINRA Arbitration No. 16-01304, alleging unsuitable recommendations, failure to supervise, breach of contract, and negligence. These actions reportedly led to losses in stocks and master limited partnerships for the investor. Consequently, on June 22, 2017, Oppenheimer Co. Inc. chose to resolve the matter by compensating the investor $37,500.
In Civil Suit: BC427035, an investor of Oppenheimer Co. Inc. accused Michael Rosenmayer of making misrepresentations and omissions about auction rate securities purchased between December 2007 and January 2008, resulting in losses. To settle the matter, Oppenheimer Co. Inc. agreed on March 16, 2011, to compensate the investor $120,000.
If you've suffered losses due to Michael Rosenmayer, consider reaching out to Soreide Law Group. Connect with us online or call (888) 760-6552 for a consultation with a securities attorney to explore options for a recovery. Soreide Law Group, noted for successfully recovering losses for investors across the nation, operates on a contingency fee basis. Rosenmayer and his employers contest all allegations of sales practice violations.
Robert Averwater (CRD 5614514) is a Memphis, Tennessee broker. FINRA fined him $10,000, suspended him from association with any member firm in all capacities for four months, and required him to complete 10 hours of continuing education, according to an AWC issued August 18, 2026.
Qi Yang (CRD 7439718) is a San Francisco, California broker. FINRA suspended him from association with any member firm in all capacities for six months and assessed a deferred fine of $5,000, according to an AWC issued August 10, 2026.
Thomas Jacobs (CRD 4139430) is a Bay City, Michigan broker. FINRA suspended him from association with any member firm in all capacities for two months and assessed a deferred fine of $2,500, according to an AWC issued August 3, 2026.
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