Marc A. Susswein

Marc Susswein has aggressively represented employees, executives, and professionals for the past thirty years against many of the largest companies. His expansive practice has ranged from litigating on behalf of to successfully resolving disputes on behalf of individuals in circumstances where individuals have been accused of wrongdoing in the employment context and pursuing claims on their behalf where they have been wrongfully terminated, improperly denied compensation, restricted by unlawful and overly broad noncompetes or forced to contend with illegal, unethical, retaliatory or biased conduct in the workplace.  

Marc has represented individuals in a variety of industries, but he has particular experience in the securities industry.

Marc is an experienced litigator dedicated to providing vigorous representation through individualized and creative strategies. He has been engaged in an expansive employment practice for the past thirty years. Marc has represented individuals in a variety of industries, but he has particular experience in the financial services industry. He regularly advises clients in a wide range of disputes. His representations have included, for example, compensation claims, discrimination and sexual harassment, retaliation and whistleblower claims (including SEC and CFTC bounty claims), noncompete disputes, wrongful termination claims, defamation (including claims for defamation on the securities industry Form U-5), indemnification claims, and claims for severance-related compensation. These matters have arisen in a wide array of industries including financial services, hedge funds, private equity, technology, real estate, and marketing.

Marc has extensive experience representing employee-whistleblowers in high-stakes employment-related whistleblowing claims and in pursuing whistleblower bounty recoveries before the SEC, the CFTC, and other regulatory agencies.

On behalf of clients, Marc litigates in federal and state courts and arbitrations before FINRA, the American Arbitration Association, and JAMS. Marc is admitted to practice in New York and New Jersey and handles cases in other jurisdictions as well.

Representative Cases

Representing clients in connection with all aspects of employment disputes in various industries with a focus on the securities, hedge fund and financial services industries.

On behalf of firm clients, Marc has represented:

  • Swaps trading and supervising professionals in arbitral disputes over recovery of deferred compensation forfeited due to accusations of wrongdoing.
  • Equity derivatives investment banker in litigation of contractual claims over unpaid incentive and deferred compensation.
  • Energy analyst in arbitration of contract claims in arbitration over unpaid incentive compensation.
  • Swaps broker in wrongful termination dispute involving claims of retaliation under Dodd-Frank and state law protections for brokers disclosing to senior executives existing regulatory misconduct by colleagues on trading desk.
  • Mortgage underwriting banker in Sarbanes Oxley retaliation dispute arising after banker raised questions about improper loan-funding and underwriting practices.
  • Securities industry executive in Dodd-Frank bounty claims before Securities & Exchange Commission involving regulatory misconduct.
  • Trading professional in Dodd-Frank bounty claims before the Commodities and Exchange Commission involving improper trading practices.
  • Construction management project manager in litigation over national origin, race, and gender discrimination claims.
  • Hedge fund marketing and development professional in sexual harassment discrimination claims.
  • New York Stock Exchange floor broker in sexual harassment claims.
  • Foreign exchange banking professionals in wrongful termination dispute grounded in claims of age discrimination.
  • Nonprofit employee in claims of discrimination because of the individual’s sexual orientation.
  • Marketing executive in claims of disability and leave discrimination.
  • Executive recruiter in defense of allegations of violations of noncompetition and nonsolicitation contractual obligations.
  • Information technology professional in litigation over post-employment restrictions.
  • Securities industry professional in arbitral dispute over injuries to reputation grounded in defamation and tortious interference claims as a result of the publication of a defamatory statement about the stated justification for termination of employment.

In addition to litigating, Marc is routinely retained to draft and negotiate employment contracts, separation agreements, and restrictive covenant agreements.


Marc Susswein has aggressively represented employees, executives, and professionals for the past thirty years against many of the largest companies. His expansive practice has ranged from litigating on behalf of to successfully resolving disputes on behalf of individuals in circumstances where individuals have been accused of wrongdoing in the employment context and pursuing claims on their behalf where they have been wrongfully terminated, improperly denied compensation, restricted by unlawful and overly broad noncompetes or forced to contend with illegal, unethical, retaliatory or biased conduct in the workplace.