Brendan Stephen Kammerer FINRA Suspension: Former Ameriprise, Oppenheimer, Wells Fargo Broker Barred

Brendan Stephen Kammerer, a registered broker with a history at three major firms, was suspended by FINRA in June 2026 for failing to comply with a FINRA arbitration award or settlement agreement. The action bars him from working for any FINRA-registered brokerage and signals a broader pattern of non-compliance among formerly registered representatives.

What happened

FINRA issued disciplinary actions against multiple registered individuals in June 2026. Kammerer was among them. He was suspended for failure to comply with a FINRA arbitration award or settlement agreement. This is one of the most serious types of disciplinary action because it means the broker refused or failed to satisfy a legally binding resolution with a customer.

The suspension prevents Kammerer from working for any FINRA-registered broker-dealer. It also becomes part of his permanent BrokerCheck record, which future employers and customers can access at no cost.

Key facts about the case

Detail Information
Broker Name Brendan Stephen Kammerer
Disciplinary Action Suspended by FINRA
Month of Action June 2026
Violation Type Failure to comply with arbitration award or settlement
Former Employers Ameriprise Financial Services, Oppenheimer & Co., Wells Fargo Clearing Services
Status Cannot work for a FINRA-registered firm

The broker and firm details

Kammerer has worked at three firms with substantial retail investor footprints. Ameriprise Financial Services serves millions of households. Oppenheimer & Co. operates a full-service brokerage and investment bank. Wells Fargo Clearing Services is among the largest clearing firms in the United States.

His movement across multiple firms over a relatively short period is a pattern that investors should note. Brokers who switch firms repeatedly sometimes do so after complaints, arbitration claims, or disciplinary inquiries begin.

What investors lost

FINRA did not publish the exact dollar amount of the underlying arbitration award or settlement in the summary released for June 2026. However, failure-to-comply suspensions typically arise from awards that the broker cannot or will not pay. Investors who won arbitration awards against Kammerer may now face collection challenges.

FINRA arbitration awards are binding, but enforcement is not automatic. Suspension for non-compliance is FINRA’s primary tool to pressure payment. Investors with unpaid awards should consult a securities attorney about alternative collection methods, including federal court confirmation of the award.

Red flags that should have been caught

Several warning signs accompany brokers who end up suspended for non-compliance. Multiple firm transfers in a short window is one. Another is the presence of customer complaints or arbitration claims on a BrokerCheck profile that predate the suspension.

Investors who placed trust in Kammerer during his tenures at Ameriprise, Oppenheimer, or Wells Fargo may not have had easy access to his full complaint history at the time. This is why FINRA makes BrokerCheck publicly available, though many retail investors are unaware of the resource.

What affected investors can do now

Investors who suffered losses while working with Brendan Stephen Kammerer should review their account statements and transaction history. Any unauthorized trades, unsuitable recommendations, or excessive trading may support a claim against the broker or his former firms.

Under FINRA rules, arbitration agreements bind both parties. Even though Kammerer is suspended, his former employers may still bear supervisory liability depending on the timing and nature of the losses.

Haselkorn & Thibaut fights for investor recovery

Haselkorn & Thibaut is a securities law firm founded by former Wall Street defense attorneys who shifted their practice to represent investors. The firm has recovered over $520 million for clients in securities matters and maintains a 98 percent success rate in resolved nontraded REIT cases. Attorneys are AV Preeminent rated through Martindale-Hubbell, designated as Super Lawyers, and hold a 5.0-star client review average. The firm operates on a contingency basis — no recovery, no fee.

Contact Haselkorn & Thibaut today

Time matters in broker misconduct recovery cases. The earlier you act, the stronger your position. The firm offers a free case evaluation to assess your losses, review your account history, and explain your options under arbitration or settlement.

Offices in Florida, New York, Arizona, Texas, and North Carolina. Former Wall Street defense attorneys with 95+ years of combined experience. No recovery, no fee.

The information in this article is for educational purposes and does not constitute legal or investment advice. Investors should consult a qualified securities attorney for guidance specific to their situation.

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