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Leila Siddiky

Partner

Leila is a versatile and experienced litigator and trial attorney.
Her practice encompasses a broad set of areas in both the civil and regulatory context. She has represented global banks, corporations and individuals in a variety of complex civil litigations, including securities class actions, antitrust litigation, M&A-related litigation, contract disputes, and employment matters at every stage of the case, including discovery, trial and through appeal. Her practice also includes representing institutions and individuals in connection with investigations and proceedings before the SEC, DOJ, FINRA and other government and self-regulatory agencies.

Expertise

Experience

Representative matters

  • JetBlue Airways Corporation in connection with antitrust suit challenging proposed acquisition of Spirit Airlines Inc.
  • JetBlue Airways Corporation at trial challenging Northeast Alliance with American Airlines.
  • Financial institutions in connection with SEC, CFTC, and FINRA inquiries.
  • Financial institutions in putative securities class actions.
  • Financial institution in antitrust class action.
  • Financial institution in appraisal litigation in Delaware Chancery Court.
  • Financial institution to trial in contract dispute.
  • U.K. bank in actions involving mortgage-backed securities.
  • Financial institutions in connection with various internal investigations.

Qualifications

Admissions

Attorney-at-Law, New York, 2014

Courts

United States District Court for the Southern District of New York, 2015

United States District Court for the Eastern District of New York, 2017

United States District Court for the Eastern District of Michigan, 2019

United States District Court for the Western District of Michigan, 2019

United States Court of Appeals for the Second Circuit, 2015

United States Court of Appeals for the Fifth Circuit, 2018

United States Court of Appeals for the Sixth Circuit, 2019

Academic

J.D., Howard University School of Law, 2012

M.S.T., Pace University, 2007

B.A., George Washington University, 2004

Disclaimer
A&O Shearman was formed on May 1, 2024 by the combination of Shearman & Sterling LLP and Allen & Overy LLP and their respective affiliates (the legacy firms). Any matters referred to above may include matters undertaken by one or more of the legacy firms rather than A&O Shearman.