Sheyla Soriano
Image of Sheyla Soriano

Sheyla Soriano

Associate

Sheyla focuses on complex commercial litigation, antitrust litigation, securities and derivative litigation, and regulatory and internal investigations.

She has experience in the civil and regulatory context, including with federal government investigations, internal investigations, representing large financial institutions and corporations in federal and state courts in connection with antitrust and securities class actions, government investigations and enforcement actions, and other complex disputes. Sheyla has also represented clients in false advertising litigation under the Lanham Act.

Sheyla’s recent experience includes representing a global bank in a securities and derivative litigation.  She has represented global banks, corporations and individuals in 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 government and self-regulatory agencies.

Sheyla maintains an active pro bono practice.  Sheyla’s recent experience includes obtaining a landmark victory before the New York Court of Appeals on behalf of NYCLU concerning the public disclosure of law enforcement records related to allegations of officer misconduct.  She also represented an individual alleging constitutional violations by police officers and actively works with indigent clients on immigration matters.

Expertise

Experience

Representative matters

  • Financial institutions in connection with SEC, CFTC, and FINRA inquiries.
  • Financial institutions in connection with various internal investigations.
  • A company in workplace misconduct investigations.
  • A major financial institution in a FINRA arbitration and state court litigation brought by a former Latin American private banking client alleging fraud, churning and other trading violations.
  • Citigroup and affiliates in a suit and appeal in federal court arising from collapse of Mexican oil-services firm Oceanografía S.A. de C.V.
  • A Biotech genetic testing company in a successful false advertising suit against competitor.
Securities Litigation
  • Paramount Global in obtaining dismissal in New York County Supreme Court of a securities class action in connection with the collapse of Archegos Capital Management.
M&A Litigation
  • Pattern Energy Group in litigation arising out of its acquisition by CPPIB.
Antitrust Litigation
  • JetBlue Airways Corporation in a multi-week trial in connection with DOJ challenge to its proposed acquisition of Spirit Airlines Inc.
  • Paramount Global and Simon & Schuster in a three-week trial in connection with the DOJ challenge to its proposed acquisition by Penguin Random House.
  • SS&C Technologies Inc. in obtaining dismissal in the Southern District of New York of claims by a competitor that SS&C monopolized alleged markets relating to financial technology software.
  • A financial institution in the Mexican Government Bonds antitrust class action.
Regulatory and Investigations
  • A global financial institution in response to a series of internally identified issues that raised potential Fed and OCC rule violations.
  • A global financial institution in response to a series of internally identified issues and losses resulting from operational control failures.
  • A global financial institution in a FINRA investigation concerning margin operations.
  • A global financial institution in several internal investigations concerning potential conflicts of interest at a Latin American affiliate.
  • A global financial institution in an internal investigation concerning anti-bribery and corruption compliance at a Latin American affiliate.

Published Work

  • Thomson West, (2022) “Banking Litigation”, Business and Commercial Litigation in Federal Courts, Fifth Edition

Qualifications

Admissions

Attorney-at-Law, New York

Courts

United States District Court for the Southern District of New York

United States District Court for the Eastern District of New York

Academic

J.D., Howard University School of Law, 2019

B.A., New York University, 2013

Languages

English, Spanish
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.