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 Zou joined Ropes & Gray in the litigation department in 2016. 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. The bankruptcy case is the largest ever filed in the District of Delaware.
  • 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.
  • Represented companies, investment funds, and individuals in connection with SEC, FINRA, and DOJ enforcement matters. 
  • Represented companies in responding to third-party subpoenas in securities class action litigation and breach of contract litigation.
  • Pro Bono – Represented elderly tenant to seek reasonable accommodations and obtained favorable settlement in landlord/tenant dispute.
  • 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)
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