Mark Segall

Mark E. Segall, Esq.

JAMS Mediator, Arbitrator, Referee/Special Master, Hearing Officer

Case Manager
Patrick Palmer
T: 212-607-2788
F: 212-751-4099
620 8th Ave., 34th Floor, New York, NY 10018


Mr. Segall is available to conduct virtual mediations, arbitrations and other ADR proceedings on Zoom and other online platforms.

Mark E. Segall, Esq. 
is widely recognized as one of the world’s leading experts on the evaluation of litigation risk, settlement strategy and mediation of cases involving financial services and complex commercial disputes. Mr. Segall has mediated and arbitrated hundreds of domestic and international complex disputes since joining JAMS in 2010. He has vast experience in many areas of law including: employment, securities, financial markets, insurance, real estate and intellectual property.

Mr. Segall’s expertise in these areas derives from his two decades of extensive experience managing litigation and handling difficult, high profile financial services matters worldwide for JPMorgan Chase (JPMC) and its predecessor firms as well as his experience in private practice and at JAMS. Mr. Segall served as JPMC’s Head of Litigation, Senior Vice President, and Associate General Counsel from 2003 until 2010. Litigation matters ran the full gamut from the most high profile securities and antitrust cases to consumer class actions, employment matters, and international litigation and arbitration. All significant litigation settlements globally required Mr. Segall’s involvement and approval. He has been an active speaker at industry and litigation conferences and a participant in court-appointed focus groups.

Mr. Segall has arbitrated and mediated disputes involving, among other things, commercial banks, securities firms, hedge funds, private equity firms, multinational corporations, real estate developers, institutional investors, a provider of credit cards, insurance companies, law firms and accounting firms and exchanges for the trading of securities and cryptocurrency.

Senior Executive Employment Claims and Cases

Mr. Segall is particularly adept at resolving employment disputes involving senior executives at domestic, foreign and multi-national organizations. Disputes involve claims of wrongful discharge, claims involving the issue of whether the employer had "cause" for termination, claims of discrimination based on race, sex and age, alleged violations of the Dodd-Frank Wall Street Reform and Consumer Protection Act and the Sarbanes-Oxley Act, claims involving compensation in the form of incentive bonuses, deferred compensation, stock options and restricted stock, other forms of long-term incentive plans, claims involving company-sponsored private equity investments, claims involving the right to benefits and alleged violations of ERISA, and claims involving the enforcement of restrictive covenants and alleged misuse of confidential information.

Representative Matters

  • Mediation of a dispute between a foreign institutional investor and US-based provider of rating services
  • The successful mediation of a complex international matter arising under both Cayman Island and Canadian law involving an alleged Ponzi scheme and resulting litigation alleging, among other things, fraud, breach of fiduciary duty, and negligence. The plaintiffs included those charged with the liquidation of the funds at issue, and the defendants included a major financial institution, former directors of the funds, the company responsible for administration of the funds, and a major accounting firm that audited the funds.
  • The successful mediation of a trademark dispute involving who had the right to sell certain grocery products in Asia in light of agreements that were reached many years earlier when a major corporation engaged in the divestiture of certain assets across the globe.
  • Arbitration involving a claim for breach of contract of an options agreement based upon the merger of a United States company with a European company
  • Arbitrations concerning whether senior executives of United States subsidiary of a foreign corporation were properly terminated for “cause”
  • Arbitration involving the disposition of artwork owned by an Asian gallery by an auction house located in the United States
  • International and cross-border mediations including matters involving executive changes at large multinational corporations and employment disputes concerning the termination and separation of senior management employees working for global entities headquartered in Europe
  • Responsible for all worldwide litigation involving Enron including the litigation in the United Kingdom of a case brought successfully against West LB to enforce collection under a US $165 million letter of credit. Negotiated the settlement in Enron following mediation with the bank lenders and purported successors-in-interests who together held over US $1 billion in Enron bank debt.
  • Responsible for the successful litigation brought by JPMorgan and its predecessor firms in the United States, the United Kingdom, and Australia involving hundreds of millions of US dollars of insurance company credit support for certain film financing.
  • Responsible for litigation and arbitration spanning a vast variety of subjects in numerous jurisdictions including but not limited to the United Kingdom, France, Italy, Argentina, Uruguay, and other countries worldwide. Was instrumental in developing the litigation strategy and tactics used in those cases.
    Set and maintained appropriate litigation reserves for all litigation worldwide and was responsible for litigation disclosure both inside and outside the Firm.
  • Completed Virtual ADR training conducted by the JAMS Institute, the training arm of JAMS
  • Registered Mediator, United States Bankruptcy Court for the Southern District of New York
  • Recipient, Matthew G. Leonard Award for Pro Bono Achievement, MFY Legal Services, 2008
  • Member of the Board of Directors, Mobilization for Justice, NY, and its predecessor organizations 2005 - present
    • Audit Committee Chair 2019 - present
    • Board Chair from 2012-2014
  • Member of the Board of Trustees, Westchester Reform Temple, 2007-2013
  • Institute for Legal Reform
    • Held JPMorgan Chase’s seat on the Board of Directors, 2007-2010
    • Member, Audit Committee of the Board, 2009-2010
  • Member of the Board of Governors, Fairview Country Club, 2021- present
  • Speaker and moderator at legal education programs focusing on settlement strategy, mediation, risk assessment, and the effective litigation of commercial and employment cases
  • Head of Litigation, Senior Vice President, and Associate General Counsel, JPMorgan Chase & Co., May 2003-January 2010
    • Head of Workout, Bankruptcy, and Antitrust Group in Litigation, 1996-2003 (promoted to Senior Vice President and Associate General Counsel, 1997)
    • Vice President and Assistant General Counsel, Chemical Bank (subsequently merged with Chase), 1990-1996
  • Partner specializing in complex securities and antitrust litigation, Myerson & Kuhn, 1988-1989
  • Partner and Associate, specializing in complex litigation, Finley, Kumble, Wagner, Underberg, Manley, Myerson & Casey, 1985-1987
  • Associate, specializing in antitrust, securities, and M&A litigation, Davis Polk & Wardwell, 1978-1985
  • J.D., magna cum laude, Harvard Law School, 1978
  • A.B., magna cum laude, Harvard College, 1975 (President, The Harvard Independent, a newsweekly)

Counsel Comments

    • “Mark Segall is a highly effective mediator. He brings common sense and a wealth of life and work experience to mediation. He is fair to both sides and not shy about sharing his opinions. He earns the trust, not only of the counsel, but of the clients. This helps the parties resolve complicated and challenging matters.” 

      - Founding Partner of a Leading Plaintiff’s Law Firm Specializing in Employment Law 
    • "Mark Segall is brilliant and pragmatic, able to unravel the most complex matters while never losing sight of the core issues. Mark also is willing to roll up his sleeves, and do whatever is necessary, to achieve resolution."

      - Chair of an AmLaw 100 firm
    • “Mark Segall has the great ability to size up a dispute and the amount at which it can be resolved, and then works hard to get a matter settled.”

      - Senior Litigation Partner, AmLaw 100 firm
    • "Many lawyers have a comprehensive knowledge of the law. Mark certainly has that, too, but where Mark separates himself from the crowd is by bringing to the table a creativity and balanced sensibility necessary to be a successful mediator. Mark understands and perfectly fulfills his most important role in the alternative dispute resolution process."

      - Managing Partner of a law firm that represents senior executives in employment and contract matters



Practice Areas


Available nationwide


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