Sean Sullivan Investigation
January 2026- Melville, NY
According to publicly available records, Sean T. Sullivan, a former Aegis Capital broker discloses 9 customer disputes , a termination from employment and a pending regulatory investigation.
Sullivan is not currently registered with any broker dealer. Recent employment includes Sovereign Global Advisors (9/2022-4/2024), Spartan Capital Securities 7/2022-8/2022) and Aegis Capital (11/2025-7/2022)
The Financial Industry Regulatory Authority (FINRA) is the agency that licenses and regulates stockbrokers and brokerage firms. FINRA requires brokers and brokerage firms to report customer complaints and disputes as well as regulatory sanctions. In addition brokers are required to disclose certain financial matters such as personal bankruptcies, judgments and liens.
FINRA Alleges Sean Sullivan Traded Customer Accounts Without Authority
FINRA initiated a regulatory investigation of Sean Sullivan in 9/2025. According to FINRA Sullivan place unauthorized trades in four customer accounts and did not communicate with any of the customers before placing the trades. One of the customers complained to a state regulator and Sullivan willfully failed to amend regulatory filings to disclose a material event. The investigation is currently pending.
Did Sean Sullivan Trade Your Account Excessively or Make Trades Without Your Permission?
In 5/2025 a customer of Aegis Capital (where Sullivan was registered from 11/2015-7/2022) filed a FINRA arbitration alleging unsuitable investment recommendations and breach of fiduciary duty. Damages of $360,000 are sought in this pending matter.
In 7/2022 Sullivan was discharged by Aegis Capital, where he had been employed since 11/2015. Aegis Capital makes the following allegation on Sullivan’s FINRA record: “Multiple allegations of unauthorized trading”.
Six other customers of Aegis Capital/ Sean Sullivan have been paid settlements , including the following:
In 10/2024 a settlement of $40,000 was paid to resolve allegations of negligence and churning.
In 3/2024 $87,500 was paid to resolve allegations of unauthorized and excessive trading.
In 8/2021 one of Sullivan’s clients was paid $14,500 to resolve allegations that he failed to follow instructions. In 4/2021 another Aegis client was paid $145,000 to resolve allegations that Sullivan made unsuitable recommendations and committed elder abuse.
Other Cases Involving Unauthorized Trading
If you have losses in an account handled by Sean Sullivan, call to learn how you may be able to recover damages through FINRA arbitration.
What is Excessive Trading (Churning)?
Churning According to U.S. Securities and Exchange Commission (SEC)
Other Investigations Involving Churning
Firms We Have Pursued On Behalf of Our Clients
Rex Securities Law , with offices in Boca Raton, FL, and Austin, TX, provides representation to investors nationwide who are seeking recovery of investment losses due to the negligence or fraud of stockbrokers and broker dealers. If you have questions about how your account has been handled, call to speak with an experienced securities attorney.
Investigations of Aegis Capital and Aegis Capital Brokers-Lawsuits, Arbitrations & Disputes
Most cases handled on a contingent fee basis meaning that you do not pay legal fees unless we are successful.
Nationwide Representation
TollFree: 877-224-3199
Florida-561 391 1900
Texas-512-329-2870