John Mann of Oppenheimer & Co Faces Allegations, Haselkorn & Thibaut to Investigate
John Mann, a broker and investment advisor with Oppenheimer & Co. Inc. (CRD 249) in California, is facing allegations of failing to follow a client’s instructions to close out an options position. The client claims that the position was opened on January 27, 2023, and closed on February 6, 2024, resulting in significant losses. The […]
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