Former LPL Broker Sean Mostero Barred By FINRA

Sean Mostero (Sean Francis Mostero CRD# 6447158) is a former registered broker and investment advisor most recently employed with LPL Financial LLC (CRD# 6413) of Torrance, CA. His previous employers were Cetera Advisors LLC (CRD# 10299) and First Allied Securities, Inc. (CRD# 32444), also of Torrence. He has been in the industry since 2017.

Mostero has four disclosures in his CRD. The first was on 2/29/2024, where he was terminated by Alessandra Capital Management, LLC (CRD# 123305), also of Torrance. The company stated that Mostero “abandoned” his job at Alessandra and refused to cooperate with the firm’s requests for information regarding a complaint about his professional conduct.

The next disclosure (3/24/2024) is a FINRA investigation into Mostero’s customer complaint about their account withdrawals. No additional information is available for this disclosure.

On 4/16/2024, FINRA barred Mostero for failing to respond to their requests for information, effective 7/19/2024, and in all capacities. No additional information is available for this disclosure.

The most recent disclosure is a customer dispute. In it, the client alleges that Mostero engaged in an “inappropriate relationship” with the customer, and “failed to protect her from poor financial decisions, and breached his duties of care, best interest, trust, and fair dealing.”  The customer is requesting damages of $350,000. This claim is pending.

Broker Unprofessional Behavior

FINRA’s Rule 2010 states that “A member, in the conduct of its business, shall observe high standards of commercial honor and just and equitable principles of trade.” While it doesn’t list specifics, brokers are expected to follow Rule 2010 in all dealings with their customers. Any variation from this standard can be classified as a violation of Rule 2010.

Did You Invest With Sean Mostero?  

Silver Law Group represents investors in securities and investment fraud cases. Our lawyers are admitted to practice in New York and Florida and represent investors nationwide to help recover investment losses due to stockbroker misconduct. If you have any questions about how your account has been handled, call to speak with an experienced securities attorney. Most cases are handled on a contingent fee basis, meaning that you won’t owe us until we recover your money for you. Contact us today at (800) 975-4345 and let us know how we can help.