Santander Securities LLC

Santander Securities LLC Securities Attorney

October 22, 2026 | by Staff Attorney

The investment lawyers at Gana Weinstein LLP have experience helping investors determine whether their portfolio losses at investment firms, such as Santander Securities LLC, were caused by broker misconduct. There are many different ways that your broker can impermissibly drain your accounts. Our attorneys can help you understand the cause of your investment losses, uncover misconduct, and apply the law to hold accountable those responsible.

Santander Securities LLC is the bank-affiliated broker-dealer and investment adviser of Santander Bank, offering brokerage, insurance, portfolio management, and financial planning to individuals, families, and institutions. Based in Boston and a broker-dealer since 1996, the firm is a wholly owned subsidiary of Santander Holdings USA, whose bank serves customers mainly in the Mid-Atlantic and Northeastern United States.

Santander Securities LLC – By the Numbers:

There are Recent Customer Complaints with Broker Carmen Trigo Suarez in Firm Santander Securities LLC

August 13, 2026 | by Staff Attorney

According to records kept by The Financial Industry Regulatory Authority (FINRA) financial Broker Carmen Trigo Suarez (Trigo Suarez), previously associated with Santander Securities LLC, has at least one disclosable event. These events include one customer complaint, alleging that Trigo Suarez recommended unsuitable investments in different investment products including debt securities among other allegations and complaints.

FINRA BrokerCheck shows a settled customer complaint with a damage request of $1,321,566.62 on March 10, 2020.

Client’s allege unsuitability, over-concentration, failure to supervise, aiding and abetting, fraudulent concealment, violations of securities laws and rules, fraud, deceit, recklessness, negligence, breach of fiduciary duties, and violations of PR contract law (Puerto Rico bonds and closed-end funds). Includes request for rescission, interest, fees, costs, and disgorgement of commission and fees.

There are Recent Customer Complaints with Broker Mariondy Fernandez in Firm Santander Securities LLC

August 3, 2026 | by Staff Attorney

According to records kept by The Financial Industry Regulatory Authority (FINRA) financial Broker Mariondy Fernandez (Fernandez), previously associated with Santander Securities LLC, has at least 2 disclosable events. These events include 2 customer complaints, alleging that Fernandez recommended unsuitable investments in different investment products including debt securities among other allegations and complaints.

FINRA BrokerCheck shows a settled customer complaint with a damage request of $500,000.00 on June 16, 2020.

Client’s allege over-concentration, unsuitability, breach of fiduciary duty, violations of securities laws and rules, breach of contract, negligence, fraud, false inducement to inaction, failure to supervise, breach of duty of good faith and fair dealing (Puerto Rico bonds, open-end funds, and closed-end funds). Includes request for rescission, punitive damages, interest, costs, fees.

Broker Mariondy Fernandez in Santander Securities LLC Firm Has Customer Complaint

May 1, 2026 | by Staff Attorney

According to records kept by The Financial Industry Regulatory Authority (FINRA) financial Broker Mariondy Fernandez (Fernandez), previously associated with Santander Securities LLC, has at least one disclosable event. These events include one customer complaint, alleging that Fernandez recommended unsuitable investments in different investment products including debt securities among other allegations and complaints.

FINRA BrokerCheck shows a settled customer complaint with a damage request of $500,000.00 on June 16, 2020.

Client’s allege over-concentration, unsuitability, breach of fiduciary duty, violations of securities laws and rules, breach of contract, negligence, fraud, false inducement to inaction, failure to supervise, breach of duty of good faith and fair dealing (Puerto Rico bonds, open-end funds, and closed-end funds). Includes request for rescission, punitive damages, interest, costs, fees.

There are Recent Customer Complaints with Broker Nathan Fincher in Firm Santander Securities LLC

March 25, 2026 | by Staff Attorney

According to records kept by The Financial Industry Regulatory Authority (FINRA) financial Broker Nathan Fincher (Fincher), previously associated with Santander Securities LLC, has at least one disclosable event. These events include one customer complaint, alleging that Fincher recommended unsuitable investments in different investment products including debt securities among other allegations and complaints.

FINRA BrokerCheck shows a settled customer complaint with a damage request of $48,000.00 on October 19, 2020.

The policyowners questioned the suitability of the recommendation to replace their old variable annuity policies purchased in 2010 with two new variable annuity policies purchased in 2020 with new 9 year surrender charges funded by selling their former policies at losses of $25,000 and $23,000, respectively and request a review.

There are Recent Customer Complaints with Broker Panagiotis Ermogenous in Firm Santander Securities LLC

November 26, 2025 | by Staff Attorney

According to records kept by The Financial Industry Regulatory Authority (FINRA) financial Broker Panagiotis Ermogenous (Ermogenous), currently associated with Santander Securities LLC, has at least one disclosable event. These events include one customer complaint, alleging that Ermogenous recommended unsuitable investments in different investment products including debt securities among other allegations and complaints.

FINRA BrokerCheck shows a settled customer complaint with a damage request of $60,000.00 on May 09, 2022.

Client alleged poor performance.

Broker Bakhtiar Hussaini in Santander Securities LLC Firm Has Customer Complaint

August 17, 2025 | by Staff Attorney

According to records kept by The Financial Industry Regulatory Authority (FINRA) financial Broker Bakhtiar Hussaini (Hussaini), currently associated with Santander Securities LLC, has at least one disclosable event. These events include one customer complaint, alleging that Hussaini recommended unsuitable investments in different investment products including debt securities among other allegations and complaints.

FINRA BrokerCheck shows a pending customer complaint on June 06, 2025.

Client alleges that the Registered Index-Linked Annuities were not made clear to her and that she did not knowingly authorize them. Client also alleges that a withdrawal was processed from her IRA account and that she would have not knowingly agreed to withdraw funds from her IRA.