Mary Zou


  • JD, James Kent Scholar, Columbia University School of Law, 2016; editor, Columbia Journal of Law & the Arts
  • BA (History), Yale University, 2012


  • New York, 2017

Court Admissions

  • U.S. District Court for the Eastern District of New York, 2018
  • U.S. District Court for the Southern District of New York, 2018
  • Chinese (Mandarin)

Mary Zou


Mary is an associate in the Litigation and Enforcement group. She is a sophisticated litigator and advocate with experience in federal and state courts, arbitration, and mediation. Her background covers a broad range of subject matters, including general commercial law, criminal law, securities, investment management, fiduciary duties, internal investigations, and bankruptcy.

Mary graduated from Columbia Law School as a James Kent Scholar. During law school, Mary externed for the Honorable Richard J. Sullivan at the United States District Court for the Southern District of New York and at the United States Attorney’s Office for the Eastern District of New York. Mary also served as a teaching assistant for a negotiations workshop and as an editor for foundation moot court. Prior to attending law school, Mary worked as a paralegal at the Manhattan District Attorney’s Office. 


  • Represented large creditor in high profile bankruptcy litigation over the sale of Energy Future Holdings’ assets and the allocation of hundreds of millions of dollars in administrative expenses among the debtor entities. The bankruptcy case is the largest ever filed in the District of Delaware.
  • Member of cross-practice global team that represented Bain Capital in its $18 billion acquisition of Toshiba Memory Corporation, then the largest leveraged buyout and private equity deal ever in Asia.
  • Represented founder and CEO of a specialty lending business in arbitration relating to the sale of the business.
  • Represented private equity firm in federal securities litigation arising from its investment in a medical device company, securing complete dismissal of federal securities claims brought against the client.
  • Represented private equity firm in breach of contract litigation relating to its investment in a restaurant chain, obtaining an early-stage dismissal with prejudice on behalf of the client.
  • Represented large investment management firm in a residential mortgage backed securities contract dispute.
  • Represented a medical device manufacturer in a class action securities fraud lawsuit.
  • Represents companies, investment funds, and individuals in connection with SEC, FINRA, and DOJ enforcement matters.
  • Advises clients pursuing acquisitions and investments on litigation matters.
  • Pro Bono – Represented elderly tenant seeking reasonable housing accommodations in landlord/tenant dispute, obtaining a favorable settlement.
  • Barber v. Bryant – Co-authored brief on behalf of amici curiae GLBTQ Legal Advocates & Defenders (GLAD) and National Center for Lesbian Rights (NCLR) in support of the petition seeking Supreme Court review of HB 1523, a Mississippi anti-LGBTQ law enacted following the Supreme Court’s decision in Obergefell v. Hodges. Also represented GLAD, NCLR, and American Civil Liberties Union (ACLU) as amici curiae in the Fifth Circuit case. 


  • Co-author, “Court provides guidance on applicability of transaction price as measure of fair value,” International Law Office Corporate Finance/M&A Newsletter (March 27, 2019) 
  • Contributor, “Preliminary Injunctions and Temporary Restraining Orders,” PLI Litigation Practice Series, Pretrial Practice (January 2017 Update)
  • Co-author, “Martoma tips the balance on insider trading liability,” Westlaw Journal’s Securities Litigation & Regulation (October 12, 2017)
  • JD, James Kent Scholar, Columbia University School of Law, 2016; editor, Columbia Journal of Law & the Arts
  • BA (History), Yale University, 2012
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