About Gizem Tunca

Gizem Tunca concentrates her practice on litigation and enforcement matters in the financial services industry. This includes federal securities laws, regulatory and internal investigations and other complex commercial disputes. Her particular focus is on antitrust and securities issues.

Understanding of the client's industry underpins a successful antitrust litigation defense

Gizem knows that antitrust litigation and enforcement matters are shaped by issues related to the market. As a result, a strong understanding of the client's industry is a crucial part of serving their needs. She helps them solve any litigation-related problems involving the financial service sector, including class actions and federal investigations. Gizem's clients are mostly national and international banks. She is currently representing a large financial institution in a nationwide antitrust class action related to stock loans, where she has taken the lead on financial data production and document review.

Prior to joining Katten, Gizem worked as an antirust associate at a law firm in Washington, DC, where she focused on criminal and private antitrust enforcement matters.

While attending law school, Gizem was an articles editor for the Washington University Law Review. She also was vice president of the Women’s Law Caucus and a teaching assistant to Professor Neil Richards. In addition, she was a judicial extern for the Honorable Nanette A. Baker of the US District Court for the Eastern District of Missouri.

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Practice Focus

  • Financial services litigation
  • Antitrust and corruption
  • Securities litigation