Former Cetera Advisor Networks Broker Permanently Barred by FINRA for Failing to Respond to Investigation into Unsuitable Trading

Former Cetera Advisor Networks broker Mark Koehler has been barred by the Financial Industry Regulatory Authority (FINRA) for refusing to produce information and documents requested by FINRA in connection with an investigation into unsuitable trading in a senior customer’s accounts, including short-term mutual fund switching and excessive trading.

FINRA began an investigation in April 2014, upon receipt of a tip that Mark Charles Koehler, of Chadds Ford, Pennsylvania, had engaged in unsuitable trading in the accounts of a senior customer.  In the course of its investigation, FINRA reviewed trading in other of Mr. Koehler’s customer accounts and sought to investigate the following:  whether Mr. Koehler engaged in unsuitable short-term mutual fund switching and excessive trading; whether he placed undue influence on a customer before her death; and whether Mr. Koehler failed to disclose his status as beneficiary in the same customer’s will.

FINRA sent Mr. Koehler two requests for documents and information pursuant to FINRA Rule 8210, and Mr. Koehler failed to reply to either request, instead stating through counsel that he would not produce the documents or information requested. By refusing to comply with FINRA’s request, Mr. Koehler violated FINRA Rules 8210 and 2010.  Consequently, Mr. Koehler was barred from associating with any FINRA member in any capacity.

FINRA rules require brokerage firms to establish and implement a reasonable supervisory system to protect customers from the risks associated with investing. The implementation of the rules requires supervisors to monitor their employees to ensure compliance with federal and state securities laws, securities industry rules and regulations, as well as the brokerage firm’s own policies and procedures. If broker-dealers and their supervisors fail to establish and implement these protective measures, they may be held liable to account holders for investment losses which stem from their employees’ misconduct. Therefore, investors who have suffered losses due to a brokerage firm’s failure to supervise its representatives can file claims to recover damages against firms, like Cetera Advisor Networks, which have a duty to supervise its employees in order to protect their customers’ interests.

Have you suffered losses in your Cetera Advisor Networks account due to a stockbroker’s unsuitable account trades? If so, call Robert Pearce at the Law Offices of Robert Wayne Pearce, P.A. for a free consultation. Mr. Pearce is accepting clients with valid claims against Cetera Advisor Networks stockbrokers who may have engaged in misconduct and caused investors losses.

The most important of investors’ rights is the right to be informed!  This Investors’ Rights blog post is by the Law Offices of Robert Wayne Pearce, P.A., located in Boca Raton, Florida.  For over 40 years, Attorney Pearce has tried, arbitrated, and mediated hundreds of disputes involving complex securities, commodities and investment law issues.  The lawyers at our law firm are devoted to protecting investors’ rights throughout the United States and internationally!  Please visit our website,, post a comment, call (800) 732-2889, or email Mr. Pearce at for answers to any of your questions about this blog post and/or any related matter.