Abena Mainoo’s practice focuses on complex civil litigation and investigations.

She regularly defends companies facing parallel litigation and government investigations. Abena has significant experience with securities and consumer protection class actions, including litigation involving cross-border dimensions. She frequently conducts internal investigations into whistleblower complaints alleging fraud or interpersonal misconduct.

Abena also advises companies on compliance programs and remediation.

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Notable Experience

  • Allergan and executives in winning summary judgment motion dismissing securities class action in the Southern District of New York and on appeal in the Second Circuit.

  • Nationstar Mortgage and executives in winning dismissal of securities class action in the Southern District of Florida.

  • In California Public Employees Retirement System (CalPERS) v. ANZ Securities Inc., a landmark U.S. Supreme Court decision regarding the statute of repose established by Section 13 of the Securities Act of 1933.

  • Petrobras and affiliates in a securities class action and individual actions in the Southern District of New York.

  • Bosch in consumer class actions relating to diesel emissions, including winning dismissal of civil RICO claims in the Eastern District of Michigan, and related investigations.

  • BNP Paribas and HSBC in winning dismissal of civil RICO and state law claims in the Southern District of New York and on appeal in the Second Circuit.

  • BNP Paribas in class action in the Southern District of New York alleging Swiss law tort claims.

  • Standard Chartered and BNP Paribas in Anti-Terrorism Act litigation in the Southern District of New York.

  • Special committee of the FDIC board of directors in an independent review of allegations of sexual harassment and interpersonal misconduct.

  • An internal investigation of personal misconduct allegations against a company executive.

  • An internal investigation into a whistleblower complaint alleging regulatory violations and retaliation by a company’s managers.

  • An internal investigation and related regulatory inquiries concerning a whistleblower complaint alleging fraud.

  • An internal investigation of a whistleblower complaint alleging misconduct by a company’s manager and retaliation.

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Selected Activities

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Merit Selection Panel for Magistrate Judges for the U.S. District Court for the Southern District of New York

Federal Bar Council, Trustee

Publications

Events